Fix DepthCharge dealing no damage to surfaced subs

The original commit was accidentally cherry-picked from a slightly outdated branch revision.

.gitignore

@@ -11,6 +11,7 @@ obj
 *.CodeAnalysisLog.xml
 *.lastcodeanalysissucceeded
 _ReSharper.*/
+/.vs
 
 # movies
 *.vqa
@@ -61,6 +62,7 @@ OpenRA.Launcher.Mac/OpenRA.xcodeproj/*.mode1v3
 
 # auto-generated documentation
 DOCUMENTATION.md
+WEAPONS.md
 Lua-API.md
 *.html
 openra.6
@@ -79,3 +81,5 @@ StyleCopViolations.xml
 
 # Support directory
 /Support
+/da/Microsoft.Build.Utilities.v3.5.resources.dll
+/da

.travis.yml

@@ -19,6 +19,11 @@ addons:
     - nsis-common
     - dpkg
     - markdown
+    - zlib1g-dev
+    - libbz2-dev
+    - cmake
+    - genisoimage
+    - fakeroot
 
 # Environment variables
 env:
@@ -39,7 +44,7 @@ script:
 
 # Automatically update the trait documentation and Lua API
 after_success:
- - test $TRAVIS_PULL_REQUEST == "false" && make docs && cd packaging && ./update-wiki.sh $TRAVIS_BRANCH; cd ..
+ - test $TRAVIS_PULL_REQUEST == "false" && cd packaging && ./update-wiki.sh $TRAVIS_BRANCH; cd ..
 
 # Only watch the development branch and tagged release.
 branches:
@@ -72,7 +77,7 @@ deploy:
     secure: "g/LU11f+mjqv+lj0sR1UliHwogXL4ofJUwoG5Dbqlvdf5UTLWytw/OWSCv8RGyuh10miyWeaoqHh1cn2C1IFhUEqN1sSeKKKOWOTvJ2FR5mzi9uH3d/MOBzG5icQ7Qh0fZ1YPz5RaJJhYu6bmfvA/1gD49GoaX2kxQL4J5cEBgg="
   file:
     - build/OpenRA-${TRAVIS_TAG}.exe
-    - build/OpenRA-${TRAVIS_TAG}.zip
+    - build/OpenRA-${TRAVIS_TAG}.dmg
     - build/openra_${DOTVERSION}_all.deb
   skip_cleanup: true
   on:

AUTHORS

@@ -5,7 +5,6 @@ The OpenRA developers are:
     * Chris Forbes (chrisf)
     * Igor Popov (ihptru)
     * Lukas Franke (abcdefg30)
-    * Matthias Mailänder (Mailaender)
     * Oliver Brakmann (obrakmann)
     * Paul Chote (pchote)
     * Reaperrr
@@ -16,6 +15,7 @@ Previous developers included:
     * Caleb Anderson (RobotCaleb)
     * Curtis Shmyr (hamb)
     * Daniel Hernandez (Mancano)
+    * Matthias Mailänder (Mailaender)
     * Megan Bowra-Dean (beedee)
     * Mike Bundy (kehaar)
     * Pavel Penev (penev92)
@@ -89,6 +89,7 @@ Also thanks to:
     * Lesueur Benjamin (Valkirie)
     * Maarten Meuris (Nyerguds)
     * Mark Olson (markolson)
+    * Markus Hartung (hartmark)
     * Matija Hustic (matija-hustic)
     * Matthew Gatland (mgatland)
     * Matthew Uzzell (MUzzell)
@@ -170,6 +171,8 @@ Krueger and distributed under the GNU GPL terms.
 Using SmartIrc4Net developed by Mirco Bauer
 distributed under the LGPL version 2.1 or later.
 
+Using rix0rrr.BeaconLib developed by Rico Huijbers
+distributed under MIT License.
 
 Finally, special thanks goes to the original teams
 at Westwood Studios and EA for creating the classic

INSTALL.md

@@ -29,7 +29,7 @@ To compile OpenRA, run `make all` from the command line.
 
 Run with either `launch-game.sh` or `mono --debug OpenRA.Game.exe`.
 
-Type `sudo make install-all` for system wide installation. Run `make install-linux-shortcuts` to get startup scripts, icons and desktop files. You can then run from the `openra` shortcut.
+Type `sudo make install` for system wide installation. Run `make install-linux-shortcuts` to get startup scripts, icons and desktop files. You can then run from the `openra` shortcut.
 
 Debian/Ubuntu
 -------------

Makefile

@@ -3,9 +3,6 @@
 # to compile, run:
 #   make [DEBUG=false]
 #
-# to compile with development tools, run:
-#   make all [DEBUG=false]
-#
 # to check unit tests (requires NUnit version >= 2.6), run:
 #  make nunit [NUNIT_CONSOLE=<path-to/nunit[2]-console>] [NUNIT_LIBS_PATH=<path-to-libs-dir>] [NUNIT_LIBS=<nunit-libs>]
 #      Use NUNIT_CONSOLE if nunit[3|2]-console was not downloaded by `make dependencies` nor is it in bin search paths
@@ -17,18 +14,16 @@
 # to check the official mod dlls for StyleCop violations, run:
 #   make check
 #
-# to generate documentation aimed at modders, run:
-#   make docs
-#
 # to install, run:
 #   make [prefix=/foo] [bindir=/bar/bin] install
 #
-# to install with development tools, run:
-#   make [prefix=/foo] [bindir=/bar/bin] install-all
-#
 # to install Linux startup scripts, desktop files and icons:
 #   make install-linux-shortcuts [DEBUG=false]
 #
+# to install the engine and common mod files (omitting the default mods):
+#   make install-engine
+#   make install-common-mod-files
+#
 # to uninstall, run:
 #   make uninstall
 #
@@ -46,7 +41,7 @@ SDK         ?=
 CSC         = mcs $(SDK)
 CSFLAGS     = -nologo -warn:4 -codepage:utf8 -unsafe -warnaserror
 DEFINE      = TRACE
-COMMON_LIBS = System.dll System.Core.dll System.Data.dll System.Data.DataSetExtensions.dll System.Drawing.dll System.Xml.dll thirdparty/download/ICSharpCode.SharpZipLib.dll thirdparty/download/FuzzyLogicLibrary.dll thirdparty/download/MaxMind.Db.dll thirdparty/download/Eluant.dll thirdparty/download/SmarIrc4net.dll
+COMMON_LIBS = System.dll System.Core.dll System.Data.dll System.Data.DataSetExtensions.dll System.Drawing.dll System.Xml.dll thirdparty/download/ICSharpCode.SharpZipLib.dll thirdparty/download/FuzzyLogicLibrary.dll thirdparty/download/MaxMind.Db.dll thirdparty/download/Eluant.dll thirdparty/download/SmarIrc4net.dll thirdparty/download/rix0rrr.BeaconLib.dll
 NUNIT_LIBS_PATH :=
 NUNIT_LIBS  := $(NUNIT_LIBS_PATH)nunit.framework.dll
 
@@ -88,7 +83,6 @@ INSTALL_DATA = $(INSTALL) -m644
 
 # program targets
 CORE = pdefault game utility server
-TOOLS = gamemonitor
 VERSION     = $(shell git name-rev --name-only --tags --no-undefined HEAD 2>/dev/null || echo git-`git rev-parse --short HEAD`)
 
 # dependencies
@@ -109,7 +103,6 @@ game_SRCS := $(shell find OpenRA.Game/ -iname '*.cs')
 game_TARGET = OpenRA.Game.exe
 game_KIND = winexe
 game_LIBS = $(COMMON_LIBS) $(game_DEPS) thirdparty/download/SharpFont.dll thirdparty/download/Open.Nat.dll
-game_FLAGS = -win32icon:OpenRA.Game/OpenRA.ico
 PROGRAMS += game
 game: $(game_TARGET)
 
@@ -127,7 +120,7 @@ mod_common_SRCS := $(shell find OpenRA.Mods.Common/ -iname '*.cs')
 mod_common_TARGET = mods/common/OpenRA.Mods.Common.dll
 mod_common_KIND = library
 mod_common_DEPS = $(game_TARGET)
-mod_common_LIBS = $(COMMON_LIBS) $(STD_MOD_LIBS) thirdparty/download/StyleCop.dll thirdparty/download/StyleCop.CSharp.dll thirdparty/download/StyleCop.CSharp.Rules.dll
+mod_common_LIBS = $(COMMON_LIBS) $(STD_MOD_LIBS)
 PROGRAMS += mod_common
 mod_common: $(mod_common_TARGET)
 
@@ -170,37 +163,34 @@ check-scripts:
 	@luac -p $(shell find mods/*/maps/* -iname '*.lua')
 	@luac -p $(shell find lua/* -iname '*.lua')
 
-check: utility mods
+check: utility stylecheck mods
 	@echo
 	@echo "Checking for explicit interface violations..."
 	@mono --debug OpenRA.Utility.exe all --check-explicit-interfaces
 	@echo
 	@echo "Checking for code style violations in OpenRA.Game..."
-	@mono --debug OpenRA.Utility.exe ra --check-code-style OpenRA.Game
+	@mono --debug OpenRA.StyleCheck.exe OpenRA.Game
 	@echo
 	@echo "Checking for code style violations in OpenRA.Platforms.Default..."
-	@mono --debug OpenRA.Utility.exe ra --check-code-style OpenRA.Platforms.Default
-	@echo
-	@echo "Checking for code style violations in OpenRA.GameMonitor..."
-	@mono --debug OpenRA.Utility.exe ra --check-code-style OpenRA.GameMonitor
+	@mono --debug OpenRA.StyleCheck.exe OpenRA.Platforms.Default
 	@echo
 	@echo "Checking for code style violations in OpenRA.Mods.Common..."
-	@mono --debug OpenRA.Utility.exe ra --check-code-style OpenRA.Mods.Common
+	@mono --debug OpenRA.StyleCheck.exe OpenRA.Mods.Common
 	@echo
 	@echo "Checking for code style violations in OpenRA.Mods.Cnc..."
-	@mono --debug OpenRA.Utility.exe ra --check-code-style OpenRA.Mods.Cnc
+	@mono --debug OpenRA.StyleCheck.exe OpenRA.Mods.Cnc
 	@echo
 	@echo "Checking for code style violations in OpenRA.Mods.D2k..."
-	@mono --debug OpenRA.Utility.exe ra --check-code-style OpenRA.Mods.D2k
+	@mono --debug OpenRA.StyleCheck.exe OpenRA.Mods.D2k
 	@echo
 	@echo "Checking for code style violations in OpenRA.Utility..."
-	@mono --debug OpenRA.Utility.exe ra --check-code-style OpenRA.Utility
+	@mono --debug OpenRA.StyleCheck.exe OpenRA.Utility
 	@echo
 	@echo "Checking for code style violations in OpenRA.Test..."
-	@mono --debug OpenRA.Utility.exe ra --check-code-style OpenRA.Test
+	@mono --debug OpenRA.StyleCheck.exe OpenRA.Test
 	@echo
 	@echo "Checking for code style violations in OpenRA.Server..."
-	@mono --debug OpenRA.Utility.exe ra --check-code-style OpenRA.Server
+	@mono --debug OpenRA.StyleCheck.exe OpenRA.Server
 
 NUNIT_CONSOLE := $(shell test -f thirdparty/download/nunit3-console.exe && echo mono thirdparty/download/nunit3-console.exe || \
 	which nunit3-console 2>/dev/null || which nunit2-console 2>/dev/null || which nunit-console 2>/dev/null)
@@ -238,16 +228,6 @@ test: utility mods
 
 ##### Launchers / Utilities #####
 
-gamemonitor_SRCS := $(shell find OpenRA.GameMonitor/ -iname '*.cs')
-gamemonitor_TARGET = OpenRA.exe
-gamemonitor_KIND = winexe
-gamemonitor_DEPS = $(game_TARGET)
-gamemonitor_LIBS = $(COMMON_LIBS) $(gamemonitor_DEPS) System.Windows.Forms.dll
-gamemonitor_FLAGS = -win32icon:OpenRA.Game/OpenRA.ico
-PROGRAMS += gamemonitor
-gamemonitor: $(gamemonitor_TARGET)
-
-# Backend for the launcher apps - queries game/mod info and applies actions to an install
 utility_SRCS := $(shell find OpenRA.Utility/ -iname '*.cs')
 utility_TARGET = OpenRA.Utility.exe
 utility_KIND = exe
@@ -256,6 +236,13 @@ utility_LIBS = $(COMMON_LIBS) $(utility_DEPS) thirdparty/download/ICSharpCode.Sh
 PROGRAMS += utility
 utility: $(utility_TARGET)
 
+stylecheck_SRCS := $(shell find OpenRA.StyleCheck/ -iname '*.cs')
+stylecheck_TARGET = OpenRA.StyleCheck.exe
+stylecheck_KIND = exe
+stylecheck_LIBS = thirdparty/download/StyleCop.dll thirdparty/download/StyleCop.CSharp.dll thirdparty/download/StyleCop.CSharp.Rules.dll
+PROGRAMS += stylecheck
+stylecheck: $(stylecheck_TARGET)
+
 # Dedicated server
 server_SRCS := $(shell find OpenRA.Server/ -iname '*.cs')
 server_TARGET = OpenRA.Server.exe
@@ -297,13 +284,9 @@ default: core
 
 core: dependencies game platforms mods utility server
 
-tools: gamemonitor
-
-package: all-dependencies core tools docs version
-
 mods: mod_common mod_cnc mod_d2k
 
-all: dependencies core tools
+all: dependencies core stylecheck
 
 clean:
 	@-$(RM_F) *.exe *.dll *.dylib *.dll.config ./OpenRA*/*.dll ./OpenRA*/*.mdb *.mdb mods/**/*.dll mods/**/*.mdb *.resources
@@ -317,62 +300,49 @@ cli-dependencies:
 	@ $(CP_R) thirdparty/download/*.dll .
 	@ $(CP_R) thirdparty/download/*.dll.config .
 
-linux-dependencies: cli-dependencies linux-native-dependencies
+linux-dependencies: cli-dependencies geoip-dependencies linux-native-dependencies
 
 linux-native-dependencies:
 	@./thirdparty/configure-native-deps.sh
 
-windows-dependencies:
+windows-dependencies: cli-dependencies geoip-dependencies
 	@./thirdparty/fetch-thirdparty-deps-windows.sh
 
-osx-dependencies: cli-dependencies
+osx-dependencies: cli-dependencies geoip-dependencies
 	@./thirdparty/fetch-thirdparty-deps-osx.sh
 	@ $(CP_R) thirdparty/download/osx/*.dylib .
 	@ $(CP_R) thirdparty/download/osx/*.dll.config .
 
-dependencies: $(os-dependencies)
+geoip-dependencies:
 	@./thirdparty/fetch-geoip-db.sh
 	@ $(CP) thirdparty/download/GeoLite2-Country.mmdb.gz .
 
-all-dependencies: cli-dependencies windows-dependencies osx-dependencies
+dependencies: $(os-dependencies)
 
-version: mods/ra/mod.yaml mods/cnc/mod.yaml mods/d2k/mod.yaml mods/ts/mod.yaml mods/modchooser/mod.yaml mods/all/mod.yaml
+all-dependencies: cli-dependencies windows-dependencies osx-dependencies geoip-dependencies
+
+version: VERSION mods/ra/mod.yaml mods/cnc/mod.yaml mods/d2k/mod.yaml mods/ts/mod.yaml mods/modcontent/mod.yaml mods/all/mod.yaml
+	@echo "$(VERSION)" > VERSION
 	@for i in $? ; do \
 		awk '{sub("Version:.*$$","Version: $(VERSION)"); print $0}' $${i} > $${i}.tmp && \
-		awk '{sub("\tmodchooser:.*$$","\tmodchooser: $(VERSION)"); print $0}' $${i}.tmp > $${i}.tmp2 && \
-		awk '{sub("/[^/]*: User$$", "/$(VERSION): User"); print $0}' $${i}.tmp2 > $${i} && \
-		rm $${i}.tmp $${i}.tmp2; \
+		awk '{sub("/[^/]*: User$$", "/$(VERSION): User"); print $0}' $${i}.tmp > $${i} && \
+		rm $${i}.tmp; \
 	done
 
-docs: utility mods version
-	@mono --debug OpenRA.Utility.exe all --docs > DOCUMENTATION.md
-	@mono --debug OpenRA.Utility.exe all --lua-docs > Lua-API.md
-
 man-page: utility mods
 	@mono --debug OpenRA.Utility.exe all --man-page > openra.6
 
-install: install-core
-
-install-all: install-core install-tools
+install: default install-core
 
 install-linux-shortcuts: install-linux-scripts install-linux-icons install-linux-desktop
 
-install-core: default
-	@-echo "Installing OpenRA to $(DATA_INSTALL_DIR)"
+install-engine:
+	@-echo "Installing OpenRA engine to $(DATA_INSTALL_DIR)"
 	@$(INSTALL_DIR) "$(DATA_INSTALL_DIR)"
 	@$(INSTALL_PROGRAM) $(foreach prog,$(CORE),$($(prog)_TARGET)) "$(DATA_INSTALL_DIR)"
-	@$(INSTALL_DIR) "$(DATA_INSTALL_DIR)/mods"
-	@$(CP_R) mods/common "$(DATA_INSTALL_DIR)/mods/"
-	@$(INSTALL_PROGRAM) $(mod_common_TARGET) "$(DATA_INSTALL_DIR)/mods/common"
-	@$(INSTALL_PROGRAM) $(mod_cnc_TARGET) "$(DATA_INSTALL_DIR)/mods/common"
-	@$(CP_R) mods/cnc "$(DATA_INSTALL_DIR)/mods/"
-	@$(CP_R) mods/ra "$(DATA_INSTALL_DIR)/mods/"
-	@$(CP_R) mods/d2k "$(DATA_INSTALL_DIR)/mods/"
-	@$(INSTALL_PROGRAM) $(mod_d2k_TARGET) "$(DATA_INSTALL_DIR)/mods/d2k"
-	@$(CP_R) mods/modchooser "$(DATA_INSTALL_DIR)/mods/"
 
-	@$(INSTALL_DATA) "global mix database.dat" "$(DATA_INSTALL_DIR)/global mix database.dat"
 	@$(INSTALL_DATA) "GeoLite2-Country.mmdb.gz" "$(DATA_INSTALL_DIR)/GeoLite2-Country.mmdb.gz"
+	@$(INSTALL_DATA) VERSION "$(DATA_INSTALL_DIR)/VERSION"
 	@$(INSTALL_DATA) AUTHORS "$(DATA_INSTALL_DIR)/AUTHORS"
 	@$(INSTALL_DATA) COPYING "$(DATA_INSTALL_DIR)/COPYING"
 
@@ -388,15 +358,27 @@ install-core: default
 	@$(INSTALL_PROGRAM) Open.Nat.dll "$(DATA_INSTALL_DIR)"
 	@$(INSTALL_PROGRAM) MaxMind.Db.dll "$(DATA_INSTALL_DIR)"
 	@$(INSTALL_PROGRAM) SmarIrc4net.dll "$(DATA_INSTALL_DIR)"
+	@$(INSTALL_PROGRAM) rix0rrr.BeaconLib.dll "$(DATA_INSTALL_DIR)"
 
-ifneq ($(UNAME_S),Darwin)
+install-common-mod-files:
+	@-echo "Installing OpenRA common mod files to $(DATA_INSTALL_DIR)"
+	@$(INSTALL_DIR) "$(DATA_INSTALL_DIR)/mods"
+	@$(CP_R) mods/common "$(DATA_INSTALL_DIR)/mods/"
+	@$(INSTALL_PROGRAM) $(mod_common_TARGET) "$(DATA_INSTALL_DIR)/mods/common"
+	@$(INSTALL_PROGRAM) $(mod_cnc_TARGET) "$(DATA_INSTALL_DIR)/mods/common"
+	@$(INSTALL_DATA) "global mix database.dat" "$(DATA_INSTALL_DIR)/global mix database.dat"
+
+install-default-mods:
+	@-echo "Installing OpenRA default mods to $(DATA_INSTALL_DIR)"
+	@$(INSTALL_DIR) "$(DATA_INSTALL_DIR)/mods"
+	@$(CP_R) mods/cnc "$(DATA_INSTALL_DIR)/mods/"
+	@$(CP_R) mods/ra "$(DATA_INSTALL_DIR)/mods/"
+	@$(CP_R) mods/d2k "$(DATA_INSTALL_DIR)/mods/"
+	@$(INSTALL_PROGRAM) $(mod_d2k_TARGET) "$(DATA_INSTALL_DIR)/mods/d2k"
+	@$(CP_R) mods/modcontent "$(DATA_INSTALL_DIR)/mods/"
+
+install-core: install-engine install-common-mod-files install-default-mods
 	@$(CP) *.sh "$(DATA_INSTALL_DIR)"
-endif
-
-install-tools: tools
-	@-echo "Installing OpenRA tools to $(DATA_INSTALL_DIR)"
-	@$(INSTALL_DIR) "$(DATA_INSTALL_DIR)"
-	@$(INSTALL_PROGRAM) $(foreach prog,$(TOOLS),$($(prog)_TARGET)) "$(DATA_INSTALL_DIR)"
 
 install-linux-icons:
 	@$(INSTALL_DIR) "$(DESTDIR)$(datadir)/icons/"
@@ -404,70 +386,101 @@ install-linux-icons:
 
 install-linux-desktop:
 	@$(INSTALL_DIR) "$(DESTDIR)$(datadir)/applications"
-	@$(INSTALL_DATA) packaging/linux/openra.desktop "$(DESTDIR)$(datadir)/applications"
+	@sed 's/{MOD}/ra/g' packaging/linux/openra.desktop.in | sed 's/{MODNAME}/Red Alert/g' > packaging/linux/openra-ra.desktop
+	@$(INSTALL_DATA) packaging/linux/openra-ra.desktop "$(DESTDIR)$(datadir)/applications"
+	@sed 's/{MOD}/cnc/g' packaging/linux/openra.desktop.in | sed 's/{MODNAME}/Tiberian Dawn/g' > packaging/linux/openra-cnc.desktop
+	@$(INSTALL_DATA) packaging/linux/openra-cnc.desktop "$(DESTDIR)$(datadir)/applications"
+	@sed 's/{MOD}/d2k/g' packaging/linux/openra.desktop.in | sed 's/{MODNAME}/Dune 2000/g' > packaging/linux/openra-d2k.desktop
+	@$(INSTALL_DATA) packaging/linux/openra-d2k.desktop "$(DESTDIR)$(datadir)/applications"
+	@-$(RM) packaging/linux/openra-ra.desktop packaging/linux/openra-cnc.desktop packaging/linux/openra-d2k.desktop
 
 install-linux-mime:
 	@$(INSTALL_DIR) "$(DESTDIR)$(datadir)/mime/packages/"
+
+	@sed 's/{MOD}/ra/g' packaging/linux/openra-mimeinfo.xml.in | sed 's/{TAG}/$(VERSION)/g' > packaging/linux/openra-mimeinfo.xml
 	@$(INSTALL_DATA) packaging/linux/openra-mimeinfo.xml "$(DESTDIR)$(datadir)/mime/packages/openra.xml"
 
 	@$(INSTALL_DIR) "$(DESTDIR)$(datadir)/applications"
-	@$(INSTALL_DATA) packaging/linux/openra-join-servers.desktop "$(DESTDIR)$(datadir)/applications"
-	@$(INSTALL_DATA) packaging/linux/openra-replays.desktop "$(DESTDIR)$(datadir)/applications"
-	@$(INSTALL_DATA) packaging/linux/openra-launch-mod.desktop "$(DESTDIR)$(datadir)/applications"
+	@sed 's/{MOD}/ra/g' packaging/linux/openra-join-servers.desktop.in | sed 's/{MODNAME}/Red Alert/g' | sed 's/{TAG}/$(VERSION)/g' > packaging/linux/openra-ra-join-servers.desktop
+	@$(INSTALL_DATA) packaging/linux/openra-ra-join-servers.desktop "$(DESTDIR)$(datadir)/applications"
+	@sed 's/{MOD}/cnc/g' packaging/linux/openra-join-servers.desktop.in | sed 's/{MODNAME}/Tiberian Dawn/g' | sed 's/{TAG}/$(VERSION)/g' > packaging/linux/openra-cnc-join-servers.desktop
+	@$(INSTALL_DATA) packaging/linux/openra-cnc-join-servers.desktop "$(DESTDIR)$(datadir)/applications"
+	@sed 's/{MOD}/d2k/g' packaging/linux/openra-join-servers.desktop.in | sed 's/{MODNAME}/Dune 2000/g' | sed 's/{TAG}/$(VERSION)/g' > packaging/linux/openra-d2k-join-servers.desktop
+	@$(INSTALL_DATA) packaging/linux/openra-d2k-join-servers.desktop "$(DESTDIR)$(datadir)/applications"
+	@-$(RM) packaging/linux/openra-mimeinfo.xml packaging/linux/openra-ra-join-servers.desktop packaging/linux/openra-cnc-join-servers.desktop packaging/linux/openra-d2k-join-servers.desktop
 
 install-linux-appdata:
 	@$(INSTALL_DIR) "$(DESTDIR)$(datadir)/appdata/"
-	@$(INSTALL_DATA) packaging/linux/openra.appdata.xml "$(DESTDIR)$(datadir)/appdata/"
+	@sed 's/{MOD}/ra/g' packaging/linux/openra.appdata.xml.in | sed 's/{MOD_NAME}/Red Alert/g' | sed 's/{SCREENSHOT_RA}/ type="default"/g' | sed 's/{SCREENSHOT_CNC}//g' | sed 's/{SCREENSHOT_D2K}//g'> packaging/linux/openra-ra.appdata.xml
+	@$(INSTALL_DATA) packaging/linux/openra-ra.appdata.xml "$(DESTDIR)$(datadir)/appdata/"
+	@sed 's/{MOD}/cnc/g' packaging/linux/openra.appdata.xml.in | sed 's/{MOD_NAME}/Tiberian Dawn/g' | sed 's/{SCREENSHOT_RA}//g' | sed 's/{SCREENSHOT_CNC}/ type="default"/g' | sed 's/{SCREENSHOT_D2K}//g'> packaging/linux/openra-cnc.appdata.xml
+	@$(INSTALL_DATA) packaging/linux/openra-cnc.appdata.xml "$(DESTDIR)$(datadir)/appdata/"
+	@sed 's/{MOD}/d2k/g' packaging/linux/openra.appdata.xml.in | sed 's/{MOD_NAME}/Dune 2000/g' | sed 's/{SCREENSHOT_RA}//g' | sed 's/{SCREENSHOT_CNC}//g' | sed 's/{SCREENSHOT_D2K}/ type="default"/g'> packaging/linux/openra-d2k.appdata.xml
+	@$(INSTALL_DATA) packaging/linux/openra-d2k.appdata.xml "$(DESTDIR)$(datadir)/appdata/"
+	@-$(RM) packaging/linux/openra-ra.appdata.xml packaging/linux/openra-cnc.appdata.xml packaging/linux/openra-d2k.appdata.xml
 
 install-man-page: man-page
 	@$(INSTALL_DIR) "$(DESTDIR)$(mandir)/man6/"
 	@$(INSTALL_DATA) openra.6 "$(DESTDIR)$(mandir)/man6/"
 
 install-linux-scripts:
-	@echo "#!/bin/sh" > openra
-	@echo 'cd "$(gameinstalldir)"' >> openra
-# Note: this relies on the non-standard -f flag implemented by gnu readlink
 ifeq ($(DEBUG), $(filter $(DEBUG),false no n off 0))
-	@echo 'mono OpenRA.Game.exe Engine.LaunchPath="$$(readlink -f $$0)" "$$@"' >> openra
+	@sed 's/{DEBUG}//' packaging/linux/openra.in | sed 's|{GAME_INSTALL_DIR}|$(gameinstalldir)|' | sed 's|{BIN_DIR}|$(bindir)|' > packaging/linux/openra.debug.in
+	@sed 's/{DEBUG}//' packaging/linux/openra-server.in | sed 's|{GAME_INSTALL_DIR}|$(gameinstalldir)|' | sed 's|{BIN_DIR}|$(bindir)|' > packaging/linux/openra-server.debug.in
 else
-	@echo 'mono --debug OpenRA.Game.exe Engine.LaunchPath="$$(readlink -f $$0)" "$$@"' >> openra
-endif
-	@echo 'if [ $$? != 0 -a $$? != 1 ]' >> openra
-	@echo 'then' >> openra
-	@echo 'ZENITY=`which zenity` || echo "OpenRA needs zenity installed to display a graphical error dialog. See ~/.openra. for log files."' >> openra
-	@echo '$$ZENITY --question --title "OpenRA" --text "OpenRA has encountered a fatal error.\nLog Files are available in ~/.openra." --ok-label "Quit" --cancel-label "View FAQ" || xdg-open https://github.com/OpenRA/OpenRA/wiki/FAQ' >> openra
-	@echo 'exit 1' >> openra
-	@echo 'fi' >> openra
-
-	@$(INSTALL_DIR) "$(BIN_INSTALL_DIR)"
-	@$(INSTALL_PROGRAM) -m +rx openra "$(BIN_INSTALL_DIR)"
-	@-$(RM) openra
-
-	@echo "#!/bin/sh" > openra-server
-	@echo 'cd "$(gameinstalldir)"' >> openra-server
-ifeq ($(DEBUG), $(filter $(DEBUG),false no n off 0))
-	@echo 'mono OpenRA.Server.exe "$$@"' >> openra-server
-else
-	@echo 'mono --debug OpenRA.Server.exe "$$@"' >> openra-server
+	@sed 's/{DEBUG}/--debug/' packaging/linux/openra.in | sed 's|{GAME_INSTALL_DIR}|$(gameinstalldir)|' | sed 's|{BIN_DIR}|$(bindir)|' > packaging/linux/openra.debug.in
+	@sed 's/{DEBUG}/--debug/' packaging/linux/openra-server.in | sed 's|{GAME_INSTALL_DIR}|$(gameinstalldir)|' | sed 's|{BIN_DIR}|$(bindir)|' > packaging/linux/openra-server.debug.in
 endif
 
+	@sed 's/{MOD}/ra/g' packaging/linux/openra.debug.in | sed 's/{MODNAME}/Red Alert/g' > packaging/linux/openra-ra
+	@sed 's/{MOD}/cnc/g' packaging/linux/openra.debug.in | sed 's/{MODNAME}/Tiberian Dawn/g' > packaging/linux/openra-cnc
+	@sed 's/{MOD}/d2k/g' packaging/linux/openra.debug.in | sed 's/{MODNAME}/Dune 2000/g' > packaging/linux/openra-d2k
+
 	@$(INSTALL_DIR) "$(BIN_INSTALL_DIR)"
-	@$(INSTALL_PROGRAM) -m +rx openra-server "$(BIN_INSTALL_DIR)"
-	@-$(RM) openra-server
+	@$(INSTALL_PROGRAM) -m +rx packaging/linux/openra-ra "$(BIN_INSTALL_DIR)"
+	@$(INSTALL_PROGRAM) -m +rx packaging/linux/openra-cnc "$(BIN_INSTALL_DIR)"
+	@$(INSTALL_PROGRAM) -m +rx packaging/linux/openra-d2k "$(BIN_INSTALL_DIR)"
+	@-$(RM) packaging/linux/openra-ra packaging/linux/openra-cnc packaging/linux/openra-d2k packaging/linux/openra.debug.in
+
+	@sed 's/{MOD}/ra/g' packaging/linux/openra-server.debug.in | sed 's/{MODNAME}/Red Alert/g' > packaging/linux/openra-ra-server
+	@sed 's/{MOD}/cnc/g' packaging/linux/openra-server.debug.in | sed 's/{MODNAME}/Tiberian Dawn/g' > packaging/linux/openra-cnc-server
+	@sed 's/{MOD}/d2k/g' packaging/linux/openra-server.debug.in | sed 's/{MODNAME}/Dune 2000/g' > packaging/linux/openra-d2k-server
+
+	@$(INSTALL_DIR) "$(BIN_INSTALL_DIR)"
+	@$(INSTALL_PROGRAM) -m +rx packaging/linux/openra-ra-server "$(BIN_INSTALL_DIR)"
+	@$(INSTALL_PROGRAM) -m +rx packaging/linux/openra-cnc-server "$(BIN_INSTALL_DIR)"
+	@$(INSTALL_PROGRAM) -m +rx packaging/linux/openra-d2k-server "$(BIN_INSTALL_DIR)"
+	@-$(RM) packaging/linux/openra-ra-server packaging/linux/openra-cnc-server packaging/linux/openra-d2k-server packaging/linux/openra-server.debug.in
 
 uninstall:
 	@-$(RM_R) "$(DATA_INSTALL_DIR)"
-	@-$(RM_F) "$(BIN_INSTALL_DIR)/openra"
-	@-$(RM_F) "$(BIN_INSTALL_DIR)/openra-server"
-	@-$(RM_F) "$(DESTDIR)$(datadir)/applications/openra.desktop"
-	@-$(RM_F) "$(DESTDIR)$(datadir)/applications/openra-join-servers.desktop"
-	@-$(RM_F) "$(DESTDIR)$(datadir)/applications/openra-launch-mod.desktop"
-	@-$(RM_F) "$(DESTDIR)$(datadir)/applications/openra-join-servers.desktop"
-	@-$(RM_F) "$(DESTDIR)$(datadir)/icons/hicolor/16x16/apps/openra.png"
-	@-$(RM_F) "$(DESTDIR)$(datadir)/icons/hicolor/32x32/apps/openra.png"
-	@-$(RM_F) "$(DESTDIR)$(datadir)/icons/hicolor/48x48/apps/openra.png"
-	@-$(RM_F) "$(DESTDIR)$(datadir)/icons/hicolor/64x64/apps/openra.png"
-	@-$(RM_F) "$(DESTDIR)$(datadir)/icons/hicolor/128x128/apps/openra.png"
+	@-$(RM_F) "$(BIN_INSTALL_DIR)/openra-ra"
+	@-$(RM_F) "$(BIN_INSTALL_DIR)/openra-ra-server"
+	@-$(RM_F) "$(BIN_INSTALL_DIR)/openra-cnc"
+	@-$(RM_F) "$(BIN_INSTALL_DIR)/openra-cnc-server"
+	@-$(RM_F) "$(BIN_INSTALL_DIR)/openra-d2k"
+	@-$(RM_F) "$(BIN_INSTALL_DIR)/openra-d2k-server"
+	@-$(RM_F) "$(DESTDIR)$(datadir)/applications/openra-ra.desktop"
+	@-$(RM_F) "$(DESTDIR)$(datadir)/applications/openra-cnc.desktop"
+	@-$(RM_F) "$(DESTDIR)$(datadir)/applications/openra-d2k.desktop"
+	@-$(RM_F) "$(DESTDIR)$(datadir)/applications/openra-ra-join-servers.desktop"
+	@-$(RM_F) "$(DESTDIR)$(datadir)/applications/openra-cnc-join-servers.desktop"
+	@-$(RM_F) "$(DESTDIR)$(datadir)/applications/openra-d2k-join-servers.desktop"
+	@-$(RM_F) "$(DESTDIR)$(datadir)/icons/hicolor/16x16/apps/openra-ra.png"
+	@-$(RM_F) "$(DESTDIR)$(datadir)/icons/hicolor/32x32/apps/openra-ra.png"
+	@-$(RM_F) "$(DESTDIR)$(datadir)/icons/hicolor/48x48/apps/openra-ra.png"
+	@-$(RM_F) "$(DESTDIR)$(datadir)/icons/hicolor/64x64/apps/openra-ra.png"
+	@-$(RM_F) "$(DESTDIR)$(datadir)/icons/hicolor/128x128/apps/openra-ra.png"
+	@-$(RM_F) "$(DESTDIR)$(datadir)/icons/hicolor/16x16/apps/openra-cnc.png"
+	@-$(RM_F) "$(DESTDIR)$(datadir)/icons/hicolor/32x32/apps/openra-cnc.png"
+	@-$(RM_F) "$(DESTDIR)$(datadir)/icons/hicolor/48x48/apps/openra-cnc.png"
+	@-$(RM_F) "$(DESTDIR)$(datadir)/icons/hicolor/64x64/apps/openra-cnc.png"
+	@-$(RM_F) "$(DESTDIR)$(datadir)/icons/hicolor/128x128/apps/openra-cnc.png"
+	@-$(RM_F) "$(DESTDIR)$(datadir)/icons/hicolor/16x16/apps/openra-d2k.png"
+	@-$(RM_F) "$(DESTDIR)$(datadir)/icons/hicolor/32x32/apps/openra-d2k.png"
+	@-$(RM_F) "$(DESTDIR)$(datadir)/icons/hicolor/48x48/apps/openra-d2k.png"
+	@-$(RM_F) "$(DESTDIR)$(datadir)/icons/hicolor/64x64/apps/openra-d2k.png"
+	@-$(RM_F) "$(DESTDIR)$(datadir)/icons/hicolor/128x128/apps/openra-d2k.png"
 	@-$(RM_F) "$(DESTDIR)$(datadir)/mime/packages/openra.xml"
 	@-$(RM_F) "$(DESTDIR)$(datadir)/appdata/openra.appdata.xml"
 	@-$(RM_F) "$(DESTDIR)$(mandir)/man6/openra.6"
@@ -476,9 +489,6 @@ help:
 	@echo 'to compile, run:'
 	@echo '  make [DEBUG=false]'
 	@echo
-	@echo 'to compile with development tools, run:'
-	@echo '  make all [DEBUG=false]'
-	@echo
 	@echo 'to check unit tests (requires NUnit version >= 2.6), run:'
 	@echo '  make nunit [NUNIT_CONSOLE=<path-to/nunit[3|2]-console>] [NUNIT_LIBS_PATH=<path-to-libs-dir>] [NUNIT_LIBS=<nunit-libs>]'
 	@echo '     Use NUNIT_CONSOLE if nunit[3|2]-console was not downloaded by `make dependencies` nor is it in bin search paths'
@@ -488,15 +498,9 @@ help:
 	@echo 'to check the official mods for erroneous yaml files, run:'
 	@echo '  make test'
 	@echo
-	@echo 'to generate documentation aimed at modders, run:'
-	@echo '  make docs'
-	@echo
 	@echo 'to install, run:'
 	@echo '  make [prefix=/foo] [bindir=/bar/bin] install'
 	@echo
-	@echo 'to install with development tools, run:'
-	@echo '  make [prefix=/foo] [bindir=/bar/bin] install-all'
-	@echo
 	@echo 'to install Linux startup scripts, desktop files and icons'
 	@echo '  make install-linux-shortcuts [DEBUG=false]'
 	@echo
@@ -515,4 +519,4 @@ help:
 
 .SUFFIXES:
 
-.PHONY: core tools package all mods clean distclean dependencies version $(PROGRAMS) nunit
+.PHONY: core package all mods clean distclean dependencies version $(PROGRAMS) nunit

OpenRA.Game/Activities/Activity.cs

@@ -200,7 +200,7 @@ namespace OpenRA.Activities
 		/// </summary>
 		protected virtual void OnLastRun(Actor self) { }
 
-		public virtual bool Cancel(Actor self)
+		public virtual bool Cancel(Actor self, bool keepQueue = false)
 		{
 			if (!IsInterruptible)
 				return false;
@@ -208,9 +208,11 @@ namespace OpenRA.Activities
 			if (ChildActivity != null && !ChildActivity.Cancel(self))
 				return false;
 
-			State = ActivityState.Canceled;
-			NextActivity = null;
+			if (!keepQueue)
+				NextActivity = null;
+
 			ChildActivity = null;
+			State = ActivityState.Canceled;
 
 			return true;
 		}

OpenRA.Game/Actor.cs

@@ -45,7 +45,6 @@ namespace OpenRA
 
 		public Activity CurrentActivity { get; private set; }
 
-		public Group Group;
 		public int Generation;
 
 		public Rectangle Bounds { get; private set; }

OpenRA.Game/ExternalMods.cs

@@ -16,10 +16,12 @@ using System.Drawing;
 using System.IO;
 using System.Linq;
 using OpenRA.Graphics;
-using OpenRA.Primitives;
 
 namespace OpenRA
 {
+	[Flags]
+	enum ModRegistration { User = 1, System = 2 }
+
 	public class ExternalMod
 	{
 		public readonly string Id;
@@ -38,38 +40,37 @@ namespace OpenRA
 	{
 		readonly Dictionary<string, ExternalMod> mods = new Dictionary<string, ExternalMod>();
 		readonly SheetBuilder sheetBuilder;
-		readonly string launchPath;
 
-		public ExternalMods(string launchPath)
+		public ExternalMods()
 		{
-			// Process.Start requires paths to not be quoted, even if they contain spaces
-			if (launchPath.First() == '"' && launchPath.Last() == '"')
-				launchPath = launchPath.Substring(1, launchPath.Length - 2);
-
-			this.launchPath = launchPath;
 			sheetBuilder = new SheetBuilder(SheetType.BGRA, 256);
 
-			// Load registered mods
-			var supportPath = Platform.ResolvePath(Path.Combine("^", "ModMetadata"));
-			if (!Directory.Exists(supportPath))
-				return;
-
-			foreach (var path in Directory.GetFiles(supportPath, "*.yaml"))
+			// If the player has defined a local support directory (in the game directory)
+			// then this will override both the regular and system support dirs
+			var sources = new[] { Platform.SystemSupportDir, Platform.SupportDir };
+			foreach (var source in sources.Distinct())
 			{
-				try
+				var metadataPath = Path.Combine(source, "ModMetadata");
+				if (!Directory.Exists(metadataPath))
+					continue;
+
+				foreach (var path in Directory.GetFiles(metadataPath, "*.yaml"))
 				{
-					var yaml = MiniYaml.FromStream(File.OpenRead(path), path).First().Value;
-					LoadMod(yaml);
-				}
-				catch (Exception e)
-				{
-					Log.Write("debug", "Failed to parse mod metadata file '{0}'", path);
-					Log.Write("debug", e.ToString());
+					try
+					{
+						var yaml = MiniYaml.FromStream(File.OpenRead(path), path).First().Value;
+						LoadMod(yaml, path);
+					}
+					catch (Exception e)
+					{
+						Log.Write("debug", "Failed to parse mod metadata file '{0}'", path);
+						Log.Write("debug", e.ToString());
+					}
 				}
 			}
 		}
 
-		void LoadMod(MiniYaml yaml)
+		void LoadMod(MiniYaml yaml, string path = null)
 		{
 			var mod = FieldLoader.Load<ExternalMod>(yaml);
 			var iconNode = yaml.Nodes.FirstOrDefault(n => n.Key == "Icon");
@@ -80,10 +81,13 @@ namespace OpenRA
 					mod.Icon = sheetBuilder.Add(bitmap);
 			}
 
-			mods.Add(ExternalMod.MakeKey(mod), mod);
+			// Avoid possibly overwriting a valid mod with an obviously bogus one
+			var key = ExternalMod.MakeKey(mod);
+			if (File.Exists(mod.LaunchPath) && (path == null || Path.GetFileNameWithoutExtension(path) == key))
+				mods[key] = mod;
 		}
 
-		internal void Register(Manifest mod)
+		internal void Register(Manifest mod, string launchPath, ModRegistration registration)
 		{
 			if (mod.Metadata.Hidden)
 				return;
@@ -107,41 +111,87 @@ namespace OpenRA
 				}))
 			};
 
-			var supportPath = Platform.ResolvePath(Path.Combine("^", "ModMetadata"));
+			var sources = new List<string>();
+			if (registration.HasFlag(ModRegistration.System))
+				sources.Add(Platform.SystemSupportDir);
 
-			try
-			{
-				// Make sure the mod is available for this session, even if saving it fails
-				LoadMod(yaml.First().Value);
+			if (registration.HasFlag(ModRegistration.User))
+				sources.Add(Platform.SupportDir);
 
-				Directory.CreateDirectory(supportPath);
-				File.WriteAllLines(Path.Combine(supportPath, key + ".yaml"), yaml.ToLines(false).ToArray());
-			}
-			catch (Exception e)
-			{
-				Log.Write("debug", "Failed to register currrent mod metadata");
-				Log.Write("debug", e.ToString());
-			}
+			// Make sure the mod is available for this session, even if saving it fails
+			LoadMod(yaml.First().Value);
 
-			// Clean up stale mod registrations:
-			//  - LaunchPath no longer exists (uninstalled)
-			//  - LaunchPath and mod match the current mod, but version differs (newer version installed on top)
-			List<string> toRemove = null;
-			foreach (var kv in mods)
+			foreach (var source in sources.Distinct())
 			{
-				var k = kv.Key;
-				var m = kv.Value;
-				if (!File.Exists(m.LaunchPath) || (m.LaunchPath == launchPath && m.Id == mod.Id && k != key))
+				if (!Directory.Exists(source))
+					continue;
+
+				var metadataPath = Path.Combine(source, "ModMetadata");
+
+				try
 				{
-					Log.Write("debug", "Removing stale mod metadata entry '{0}'", k);
-					if (toRemove == null)
-						toRemove = new List<string>();
+					Directory.CreateDirectory(metadataPath);
+					File.WriteAllLines(Path.Combine(metadataPath, key + ".yaml"), yaml.ToLines(false).ToArray());
+				}
+				catch (Exception e)
+				{
+					Log.Write("debug", "Failed to register current mod metadata");
+					Log.Write("debug", e.ToString());
+				}
+			}
+		}
 
-					toRemove.Add(k);
-					var path = Path.Combine(supportPath, k + ".yaml");
+		/// <summary>
+		/// Removes invalid mod registrations:
+		/// * LaunchPath no longer exists
+		/// * LaunchPath and mod id matches the active mod, but the version is different
+		/// * Filename doesn't match internal key
+		/// * Fails to parse as a mod registration
+		/// </summary>
+		internal void ClearInvalidRegistrations(ExternalMod activeMod, ModRegistration registration)
+		{
+			var sources = new List<string>();
+			if (registration.HasFlag(ModRegistration.System))
+				sources.Add(Platform.SystemSupportDir);
+
+			if (registration.HasFlag(ModRegistration.User))
+				sources.Add(Platform.SupportDir);
+
+			foreach (var source in sources.Distinct())
+			{
+				var metadataPath = Path.Combine(source, "ModMetadata");
+				if (!Directory.Exists(metadataPath))
+					continue;
+
+				foreach (var path in Directory.GetFiles(metadataPath, "*.yaml"))
+				{
+					string modKey = null;
+					try
+					{
+						var yaml = MiniYaml.FromStream(File.OpenRead(path), path).First().Value;
+						var m = FieldLoader.Load<ExternalMod>(yaml);
+						modKey = ExternalMod.MakeKey(m);
+
+						// Continue to the next entry if this one is valid
+						if (File.Exists(m.LaunchPath) && Path.GetFileNameWithoutExtension(path) == modKey &&
+							!(activeMod != null && m.LaunchPath == activeMod.LaunchPath && m.Id == activeMod.Id && m.Version != activeMod.Version))
+							continue;
+					}
+					catch (Exception e)
+					{
+						Log.Write("debug", "Failed to parse mod metadata file '{0}'", path);
+						Log.Write("debug", e.ToString());
+					}
+
+					// Remove from the ingame mod switcher
+					if (Path.GetFileNameWithoutExtension(path) == modKey)
+						mods.Remove(modKey);
+
+					// Remove stale or corrupted metadata
 					try
 					{
 						File.Delete(path);
+						Log.Write("debug", "Removed invalid mod metadata file '{0}'", path);
 					}
 					catch (Exception e)
 					{
@@ -150,10 +200,34 @@ namespace OpenRA
 					}
 				}
 			}
+		}
 
-			if (toRemove != null)
-				foreach (var r in toRemove)
-					mods.Remove(r);
+		internal void Unregister(Manifest mod, ModRegistration registration)
+		{
+			var sources = new List<string>();
+			if (registration.HasFlag(ModRegistration.System))
+				sources.Add(Platform.SystemSupportDir);
+
+			if (registration.HasFlag(ModRegistration.User))
+				sources.Add(Platform.SupportDir);
+
+			var key = ExternalMod.MakeKey(mod);
+			mods.Remove(key);
+
+			foreach (var source in sources.Distinct())
+			{
+				var path = Path.Combine(source, "ModMetadata", key + ".yaml");
+				try
+				{
+					if (File.Exists(path))
+						File.Delete(path);
+				}
+				catch (Exception e)
+				{
+					Log.Write("debug", "Failed to remove mod metadata file '{0}'", path);
+					Log.Write("debug", e.ToString());
+				}
+			}
 		}
 
 		public ExternalMod this[string key] { get { return mods[key]; } }

OpenRA.Game/FieldLoader.cs

@@ -349,7 +349,7 @@ namespace OpenRA
 					if (parts.Length == 3)
 					{
 						int rr, rp, ry;
-						if (Exts.TryParseIntegerInvariant(value, out rr) && Exts.TryParseIntegerInvariant(value, out rp) && Exts.TryParseIntegerInvariant(value, out ry))
+						if (Exts.TryParseIntegerInvariant(parts[0], out rr) && Exts.TryParseIntegerInvariant(parts[1], out rp) && Exts.TryParseIntegerInvariant(parts[2], out ry))
 							return new WRot(new WAngle(rr), new WAngle(rp), new WAngle(ry));
 					}
 				}
@@ -398,13 +398,29 @@ namespace OpenRA
 
 				return InvalidValueAction(value, fieldType, fieldName);
 			}
-			else if (fieldType == typeof(ConditionExpression))
+			else if (fieldType == typeof(BooleanExpression))
 			{
 				if (value != null)
 				{
 					try
 					{
-						return new ConditionExpression(value);
+						return new BooleanExpression(value);
+					}
+					catch (InvalidDataException e)
+					{
+						throw new YamlException(e.Message);
+					}
+				}
+
+				return InvalidValueAction(value, fieldType, fieldName);
+			}
+			else if (fieldType == typeof(IntegerExpression))
+			{
+				if (value != null)
+				{
+					try
+					{
+						return new IntegerExpression(value);
 					}
 					catch (InvalidDataException e)
 					{

OpenRA.Game/FileFormats/PngLoader.cs

@@ -82,7 +82,7 @@ namespace OpenRA.FileFormats
 								case "PLTE":
 									{
 										palette = new Color[256];
-										for (var i = 0; i < 256; i++)
+										for (var i = 0; i < length / 3; i++)
 										{
 											var r = cr.ReadByte(); var g = cr.ReadByte(); var b = cr.ReadByte();
 											palette[i] = Color.FromArgb(r, g, b);

OpenRA.Game/FileSystem/BagFile.cs

@@ -1,127 +0,0 @@
-#region Copyright & License Information
-/*
- * Copyright 2007-2017 The OpenRA Developers (see AUTHORS)
- * This file is part of OpenRA, which is free software. It is made
- * available to you under the terms of the GNU General Public License
- * as published by the Free Software Foundation, either version 3 of
- * the License, or (at your option) any later version. For more
- * information, see COPYING.
- */
-#endregion
-
-using System;
-using System.Collections.Generic;
-using System.Globalization;
-using System.IO;
-using System.Linq;
-using System.Text;
-using OpenRA.FileFormats;
-using OpenRA.Primitives;
-
-namespace OpenRA.FileSystem
-{
-	public sealed class BagFile : IReadOnlyPackage
-	{
-		public string Name { get; private set; }
-		public IEnumerable<string> Contents { get { return index.Keys; } }
-
-		readonly Stream s;
-		readonly Dictionary<string, IdxEntry> index;
-
-		public BagFile(FileSystem context, string filename)
-		{
-			Name = filename;
-
-			// A bag file is always accompanied with an .idx counterpart
-			// For example: audio.bag requires the audio.idx file
-			var indexFilename = Path.ChangeExtension(filename, ".idx");
-
-			// Build the index and dispose the stream, it is no longer needed after this
-			List<IdxEntry> entries;
-			using (var indexStream = context.Open(indexFilename))
-				entries = new IdxReader(indexStream).Entries;
-
-			index = entries.ToDictionaryWithConflictLog(x => x.Filename,
-				"{0} (bag format)".F(filename),
-				null, x => "(offs={0}, len={1})".F(x.Offset, x.Length));
-
-			s = context.Open(filename);
-		}
-
-		public Stream GetStream(string filename)
-		{
-			IdxEntry entry;
-			if (!index.TryGetValue(filename, out entry))
-				return null;
-
-			s.Seek(entry.Offset, SeekOrigin.Begin);
-
-			var waveHeaderMemoryStream = new MemoryStream();
-
-			var channels = (entry.Flags & 1) > 0 ? 2 : 1;
-
-			if ((entry.Flags & 2) > 0)
-			{
-				// PCM
-				waveHeaderMemoryStream.Write(Encoding.ASCII.GetBytes("RIFF"));
-				waveHeaderMemoryStream.Write(BitConverter.GetBytes(entry.Length + 36));
-				waveHeaderMemoryStream.Write(Encoding.ASCII.GetBytes("WAVE"));
-				waveHeaderMemoryStream.Write(Encoding.ASCII.GetBytes("fmt "));
-				waveHeaderMemoryStream.Write(BitConverter.GetBytes(16));
-				waveHeaderMemoryStream.Write(BitConverter.GetBytes((short)1));
-				waveHeaderMemoryStream.Write(BitConverter.GetBytes((short)channels));
-				waveHeaderMemoryStream.Write(BitConverter.GetBytes(entry.SampleRate));
-				waveHeaderMemoryStream.Write(BitConverter.GetBytes(2 * channels * entry.SampleRate));
-				waveHeaderMemoryStream.Write(BitConverter.GetBytes((short)(2 * channels)));
-				waveHeaderMemoryStream.Write(BitConverter.GetBytes((short)16));
-				waveHeaderMemoryStream.Write(Encoding.ASCII.GetBytes("data"));
-				waveHeaderMemoryStream.Write(BitConverter.GetBytes(entry.Length));
-			}
-
-			if ((entry.Flags & 8) > 0)
-			{
-				// IMA ADPCM
-				var samplesPerChunk = (2 * (entry.ChunkSize - 4)) + 1;
-				var bytesPerSec = (int)Math.Floor(((double)(2 * entry.ChunkSize) / samplesPerChunk) * ((double)entry.SampleRate / 2));
-				var chunkSize = entry.ChunkSize > entry.Length ? entry.Length : entry.ChunkSize;
-
-				waveHeaderMemoryStream.Write(Encoding.ASCII.GetBytes("RIFF"));
-				waveHeaderMemoryStream.Write(BitConverter.GetBytes(entry.Length + 52));
-				waveHeaderMemoryStream.Write(Encoding.ASCII.GetBytes("WAVE"));
-				waveHeaderMemoryStream.Write(Encoding.ASCII.GetBytes("fmt "));
-				waveHeaderMemoryStream.Write(BitConverter.GetBytes(20));
-				waveHeaderMemoryStream.Write(BitConverter.GetBytes((short)17));
-				waveHeaderMemoryStream.Write(BitConverter.GetBytes((short)channels));
-				waveHeaderMemoryStream.Write(BitConverter.GetBytes(entry.SampleRate));
-				waveHeaderMemoryStream.Write(BitConverter.GetBytes(bytesPerSec));
-				waveHeaderMemoryStream.Write(BitConverter.GetBytes((short)chunkSize));
-				waveHeaderMemoryStream.Write(BitConverter.GetBytes((short)4));
-				waveHeaderMemoryStream.Write(BitConverter.GetBytes((short)2));
-				waveHeaderMemoryStream.Write(BitConverter.GetBytes((short)samplesPerChunk));
-				waveHeaderMemoryStream.Write(Encoding.ASCII.GetBytes("fact"));
-				waveHeaderMemoryStream.Write(BitConverter.GetBytes(4));
-				waveHeaderMemoryStream.Write(BitConverter.GetBytes(4 * entry.Length));
-				waveHeaderMemoryStream.Write(Encoding.ASCII.GetBytes("data"));
-				waveHeaderMemoryStream.Write(BitConverter.GetBytes(entry.Length));
-			}
-
-			waveHeaderMemoryStream.Seek(0, SeekOrigin.Begin);
-
-			// Construct a merged stream
-			var mergedStream = new MergedStream(waveHeaderMemoryStream, s);
-			mergedStream.SetLength(waveHeaderMemoryStream.Length + entry.Length);
-
-			return mergedStream;
-		}
-
-		public bool Contains(string filename)
-		{
-			return index.ContainsKey(filename);
-		}
-
-		public void Dispose()
-		{
-			s.Dispose();
-		}
-	}
-}

OpenRA.Game/FileSystem/BigFile.cs

@@ -1,105 +0,0 @@
-#region Copyright & License Information
-/*
- * Copyright 2007-2017 The OpenRA Developers (see AUTHORS)
- * This file is part of OpenRA, which is free software. It is made
- * available to you under the terms of the GNU General Public License
- * as published by the Free Software Foundation, either version 3 of
- * the License, or (at your option) any later version. For more
- * information, see COPYING.
- */
-#endregion
-
-using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-
-namespace OpenRA.FileSystem
-{
-	public sealed class BigFile : IReadOnlyPackage
-	{
-		public string Name { get; private set; }
-		public IEnumerable<string> Contents { get { return index.Keys; } }
-
-		readonly Dictionary<string, Entry> index = new Dictionary<string, Entry>();
-		readonly Stream s;
-
-		public BigFile(FileSystem context, string filename)
-		{
-			Name = filename;
-
-			s = context.Open(filename);
-			try
-			{
-				if (s.ReadASCII(4) != "BIGF")
-					throw new InvalidDataException("Header is not BIGF");
-
-				// Total archive size.
-				s.ReadUInt32();
-
-				var entryCount = s.ReadUInt32();
-				if (BitConverter.IsLittleEndian)
-					entryCount = int2.Swap(entryCount);
-
-				// First entry offset? This is apparently bogus for EA's .big files
-				// and we don't have to try seeking there since the entries typically start next in EA's .big files.
-				s.ReadUInt32();
-
-				for (var i = 0; i < entryCount; i++)
-				{
-					var entry = new Entry(s);
-					index.Add(entry.Path, entry);
-				}
-			}
-			catch
-			{
-				Dispose();
-				throw;
-			}
-		}
-
-		class Entry
-		{
-			readonly Stream s;
-			readonly uint offset;
-			readonly uint size;
-			public readonly string Path;
-
-			public Entry(Stream s)
-			{
-				this.s = s;
-
-				offset = s.ReadUInt32();
-				size = s.ReadUInt32();
-				if (BitConverter.IsLittleEndian)
-				{
-					offset = int2.Swap(offset);
-					size = int2.Swap(size);
-				}
-
-				Path = s.ReadASCIIZ();
-			}
-
-			public Stream GetData()
-			{
-				s.Position = offset;
-				return new MemoryStream(s.ReadBytes((int)size));
-			}
-		}
-
-		public Stream GetStream(string filename)
-		{
-			return index[filename].GetData();
-		}
-
-		public bool Contains(string filename)
-		{
-			return index.ContainsKey(filename);
-		}
-
-		public void Dispose()
-		{
-			s.Dispose();
-		}
-	}
-}

OpenRA.Game/FileSystem/D2kSoundResources.cs

@@ -1,81 +0,0 @@
-#region Copyright & License Information
-/*
- * Copyright 2007-2017 The OpenRA Developers (see AUTHORS)
- * This file is part of OpenRA, which is free software. It is made
- * available to you under the terms of the GNU General Public License
- * as published by the Free Software Foundation, either version 3 of
- * the License, or (at your option) any later version. For more
- * information, see COPYING.
- */
-#endregion
-
-using System.Collections.Generic;
-using System.IO;
-using OpenRA.Primitives;
-
-namespace OpenRA.FileSystem
-{
-	public sealed class D2kSoundResources : IReadOnlyPackage
-	{
-		struct Entry
-		{
-			public readonly uint Offset;
-			public readonly uint Length;
-
-			public Entry(uint offset, uint length)
-			{
-				Offset = offset;
-				Length = length;
-			}
-		}
-
-		public string Name { get; private set; }
-		public IEnumerable<string> Contents { get { return index.Keys; } }
-
-		readonly Stream s;
-		readonly Dictionary<string, Entry> index = new Dictionary<string, Entry>();
-
-		public D2kSoundResources(FileSystem context, string filename)
-		{
-			Name = filename;
-
-			s = context.Open(filename);
-			try
-			{
-				var headerLength = s.ReadUInt32();
-				while (s.Position < headerLength + 4)
-				{
-					var name = s.ReadASCIIZ();
-					var offset = s.ReadUInt32();
-					var length = s.ReadUInt32();
-					index.Add(name, new Entry(offset, length));
-				}
-			}
-			catch
-			{
-				Dispose();
-				throw;
-			}
-		}
-
-		public Stream GetStream(string filename)
-		{
-			Entry e;
-			if (!index.TryGetValue(filename, out e))
-				return null;
-
-			s.Seek(e.Offset, SeekOrigin.Begin);
-			return new MemoryStream(s.ReadBytes((int)e.Length));
-		}
-
-		public bool Contains(string filename)
-		{
-			return index.ContainsKey(filename);
-		}
-
-		public void Dispose()
-		{
-			s.Dispose();
-		}
-	}
-}

OpenRA.Game/FileSystem/FileSystem.cs

@@ -34,82 +34,63 @@ namespace OpenRA.FileSystem
 		// Mod packages that should not be disposed
 		readonly List<IReadOnlyPackage> modPackages = new List<IReadOnlyPackage>();
 		readonly IReadOnlyDictionary<string, Manifest> installedMods;
+		readonly IPackageLoader[] packageLoaders;
 
 		Cache<string, List<IReadOnlyPackage>> fileIndex = new Cache<string, List<IReadOnlyPackage>>(_ => new List<IReadOnlyPackage>());
 
-		public FileSystem(IReadOnlyDictionary<string, Manifest> installedMods)
+		public FileSystem(IReadOnlyDictionary<string, Manifest> installedMods, IPackageLoader[] packageLoaders)
 		{
 			this.installedMods = installedMods;
+			this.packageLoaders = packageLoaders
+				.Append(new ZipFileLoader())
+				.ToArray();
+		}
+
+		public bool TryParsePackage(Stream stream, string filename, out IReadOnlyPackage package)
+		{
+			package = null;
+			foreach (var packageLoader in packageLoaders)
+				if (packageLoader.TryParsePackage(stream, filename, this, out package))
+					return true;
+
+			return false;
 		}
 
 		public IReadOnlyPackage OpenPackage(string filename)
 		{
-			if (filename.EndsWith(".mix", StringComparison.InvariantCultureIgnoreCase))
-				return new MixFile(this, filename);
-			if (filename.EndsWith(".zip", StringComparison.InvariantCultureIgnoreCase))
-				return new ZipFile(this, filename);
-			if (filename.EndsWith(".oramap", StringComparison.InvariantCultureIgnoreCase))
-				return new ZipFile(this, filename);
-			if (filename.EndsWith(".oramod", StringComparison.InvariantCultureIgnoreCase))
-				return new ZipFile(this, filename);
-			if (filename.EndsWith(".RS", StringComparison.InvariantCultureIgnoreCase))
-				return new D2kSoundResources(this, filename);
-			if (filename.EndsWith(".Z", StringComparison.InvariantCultureIgnoreCase))
-				return new InstallShieldPackage(this, filename);
-			if (filename.EndsWith(".PAK", StringComparison.InvariantCultureIgnoreCase))
-				return new PakFile(this, filename);
-			if (filename.EndsWith(".big", StringComparison.InvariantCultureIgnoreCase))
-				return new BigFile(this, filename);
-			if (filename.EndsWith(".bag", StringComparison.InvariantCultureIgnoreCase))
-				return new BagFile(this, filename);
+			// Raw directories are the easiest and one of the most common cases, so try these first
+			var resolvedPath = Platform.ResolvePath(filename);
+			if (!filename.Contains("|") && Directory.Exists(resolvedPath))
+				return new Folder(resolvedPath);
 
+			// Children of another package require special handling
 			IReadOnlyPackage parent;
 			string subPath = null;
 			if (TryGetPackageContaining(filename, out parent, out subPath))
-				return OpenPackage(subPath, parent);
+				return parent.OpenPackage(subPath, this);
 
-			return new Folder(Platform.ResolvePath(filename));
-		}
+			// Try and open it normally
+			IReadOnlyPackage package;
+			var stream = Open(filename);
+			if (TryParsePackage(stream, filename, out package))
+				return package;
 
-		public IReadOnlyPackage OpenPackage(string filename, IReadOnlyPackage parent)
-		{
-			// HACK: limit support to zip and folder until we generalize the PackageLoader support
-			if (filename.EndsWith(".zip", StringComparison.InvariantCultureIgnoreCase) ||
-				filename.EndsWith(".oramap", StringComparison.InvariantCultureIgnoreCase))
-			{
-				using (var s = parent.GetStream(filename))
-					return new ZipFile(s, filename, parent);
-			}
-
-			if (parent is ZipFile)
-				return new ZipFolder(this, (ZipFile)parent, filename, filename);
-
-			if (parent is ZipFolder)
-			{
-				var folder = (ZipFolder)parent;
-				return new ZipFolder(this, folder.Parent, folder.Name + "/" + filename, filename);
-			}
-
-			if (parent is Folder)
-			{
-				var subFolder = Platform.ResolvePath(Path.Combine(parent.Name, filename));
-				if (Directory.Exists(subFolder))
-					return new Folder(subFolder);
-			}
+			// No package loaders took ownership of the stream, so clean it up
+			stream.Dispose();
 
 			return null;
 		}
 
 		public void Mount(string name, string explicitName = null)
 		{
-			var optional = name.StartsWith("~");
+			var optional = name.StartsWith("~", StringComparison.Ordinal);
 			if (optional)
 				name = name.Substring(1);
 
 			try
 			{
 				IReadOnlyPackage package;
-				if (name.StartsWith("$"))
+				if (name.StartsWith("$", StringComparison.Ordinal))
 				{
 					name = name.Substring(1);
 
@@ -299,5 +280,40 @@ namespace OpenRA.FileSystem
 
 			return fileIndex.ContainsKey(filename);
 		}
+
+		/// <summary>
+		/// Resolves a filesystem for an assembly, accounting for explicit and mod mounts.
+		/// Assemblies must exist in the native OS file system (not inside an OpenRA-defined package).
+		/// </summary>
+		public static string ResolveAssemblyPath(string path, Manifest manifest, InstalledMods installedMods)
+		{
+			var explicitSplit = path.IndexOf('|');
+			if (explicitSplit > 0)
+			{
+				var parent = path.Substring(0, explicitSplit);
+				var filename = path.Substring(explicitSplit + 1);
+
+				var parentPath = manifest.Packages.FirstOrDefault(kv => kv.Value == parent).Key;
+				if (parentPath == null)
+					return null;
+
+				if (parentPath.StartsWith("$", StringComparison.Ordinal))
+				{
+					Manifest mod;
+					if (!installedMods.TryGetValue(parentPath.Substring(1), out mod))
+						return null;
+
+					if (!(mod.Package is Folder))
+						return null;
+
+					 path = Path.Combine(mod.Package.Name, filename);
+				}
+				else
+					path = Path.Combine(parentPath, filename);
+			}
+
+			var resolvedPath = Platform.ResolvePath(path);
+			return File.Exists(resolvedPath) ? resolvedPath : null;
+		}
 	}
 }

OpenRA.Game/FileSystem/Folder.cs

@@ -51,6 +51,30 @@ namespace OpenRA.FileSystem
 			return combined.StartsWith(path, StringComparison.Ordinal) && File.Exists(combined);
 		}
 
+		public IReadOnlyPackage OpenPackage(string filename, FileSystem context)
+		{
+			var resolvedPath = Platform.ResolvePath(Path.Combine(Name, filename));
+			if (Directory.Exists(resolvedPath))
+				return new Folder(resolvedPath);
+
+			// Zip files loaded from Folders (and *only* from Folders) can be read-write
+			IReadWritePackage readWritePackage;
+			if (ZipFileLoader.TryParseReadWritePackage(resolvedPath, out readWritePackage))
+				return readWritePackage;
+
+			// Other package types can be loaded normally
+			IReadOnlyPackage package;
+			var s = GetStream(filename);
+			if (s == null)
+				return null;
+
+			if (context.TryParsePackage(s, filename, out package))
+				return package;
+
+			s.Dispose();
+			return null;
+		}
+
 		public void Update(string filename, byte[] contents)
 		{
 			// HACK: ZipFiles can't be loaded as read-write from a stream, so we are

OpenRA.Game/FileSystem/IPackage.cs

@@ -15,12 +15,23 @@ using System.IO;
 
 namespace OpenRA.FileSystem
 {
+	public interface IPackageLoader
+	{
+		/// <summary>
+		/// Attempt to parse a stream as this type of package.
+		/// If successful, the loader is expected to take ownership of `s` and dispose it once done.
+		/// If unsuccessful, the loader is expected to return the stream position to where it started.
+		/// </summary>
+		bool TryParsePackage(Stream s, string filename, FileSystem context, out IReadOnlyPackage package);
+	}
+
 	public interface IReadOnlyPackage : IDisposable
 	{
 		string Name { get; }
 		IEnumerable<string> Contents { get; }
 		Stream GetStream(string filename);
 		bool Contains(string filename);
+		IReadOnlyPackage OpenPackage(string filename, FileSystem context);
 	}
 
 	public interface IReadWritePackage : IReadOnlyPackage

OpenRA.Game/FileSystem/InstallShieldPackage.cs

@@ -1,137 +0,0 @@
-#region Copyright & License Information
-/*
- * Copyright 2007-2017 The OpenRA Developers (see AUTHORS)
- * This file is part of OpenRA, which is free software. It is made
- * available to you under the terms of the GNU General Public License
- * as published by the Free Software Foundation, either version 3 of
- * the License, or (at your option) any later version. For more
- * information, see COPYING.
- */
-#endregion
-
-using System;
-using System.Collections.Generic;
-using System.IO;
-using OpenRA.FileFormats;
-
-namespace OpenRA.FileSystem
-{
-	public sealed class InstallShieldPackage : IReadOnlyPackage
-	{
-		public struct Entry
-		{
-			public readonly uint Offset;
-			public readonly uint Length;
-
-			public Entry(uint offset, uint length)
-			{
-				Offset = offset;
-				Length = length;
-			}
-		}
-
-		public string Name { get; private set; }
-		public IEnumerable<string> Contents { get { return index.Keys; } }
-
-		readonly Dictionary<string, Entry> index = new Dictionary<string, Entry>();
-		readonly Stream s;
-		readonly long dataStart = 255;
-
-		public InstallShieldPackage(FileSystem context, string filename)
-		{
-			Name = filename;
-
-			s = context.Open(filename);
-			try
-			{
-				// Parse package header
-				var signature = s.ReadUInt32();
-				if (signature != 0x8C655D13)
-					throw new InvalidDataException("Not an Installshield package");
-
-				s.Position += 8;
-				/*var FileCount = */s.ReadUInt16();
-				s.Position += 4;
-				/*var ArchiveSize = */s.ReadUInt32();
-				s.Position += 19;
-				var tocAddress = s.ReadInt32();
-				s.Position += 4;
-				var dirCount = s.ReadUInt16();
-
-				// Parse the directory list
-				s.Position = tocAddress;
-
-				// Parse directories
-				var directories = new Dictionary<string, uint>();
-				for (var i = 0; i < dirCount; i++)
-				{
-					// Parse directory header
-					var fileCount = s.ReadUInt16();
-					var chunkSize = s.ReadUInt16();
-					var nameLength = s.ReadUInt16();
-					var dirName = s.ReadASCII(nameLength);
-
-					// Skip to the end of the chunk
-					s.ReadBytes(chunkSize - nameLength - 6);
-					directories.Add(dirName, fileCount);
-				}
-
-				// Parse files
-				foreach (var dir in directories)
-					for (var i = 0; i < dir.Value; i++)
-						ParseFile(s, dir.Key);
-			}
-			catch
-			{
-				Dispose();
-				throw;
-			}
-		}
-
-		uint accumulatedData = 0;
-		void ParseFile(Stream s, string dirName)
-		{
-			s.Position += 7;
-			var compressedSize = s.ReadUInt32();
-			s.Position += 12;
-			var chunkSize = s.ReadUInt16();
-			s.Position += 4;
-			var nameLength = s.ReadByte();
-			var fileName = dirName + "\\" + s.ReadASCII(nameLength);
-
-			// Use index syntax to overwrite any duplicate entries with the last value
-			index[fileName] = new Entry(accumulatedData, compressedSize);
-			accumulatedData += compressedSize;
-
-			// Skip to the end of the chunk
-			s.Position += chunkSize - nameLength - 30;
-		}
-
-		public Stream GetStream(string filename)
-		{
-			Entry e;
-			if (!index.TryGetValue(filename, out e))
-				return null;
-
-			s.Seek(dataStart + e.Offset, SeekOrigin.Begin);
-
-			var ret = new MemoryStream();
-			Blast.Decompress(s, ret);
-			ret.Seek(0, SeekOrigin.Begin);
-
-			return ret;
-		}
-
-		public bool Contains(string filename)
-		{
-			return index.ContainsKey(filename);
-		}
-
-		public IReadOnlyDictionary<string, Entry> Index { get { return new ReadOnlyDictionary<string, Entry>(index); } }
-
-		public void Dispose()
-		{
-			s.Dispose();
-		}
-	}
-}

OpenRA.Game/FileSystem/MixFile.cs

@@ -1,243 +0,0 @@
-#region Copyright & License Information
-/*
- * Copyright 2007-2017 The OpenRA Developers (see AUTHORS)
- * This file is part of OpenRA, which is free software. It is made
- * available to you under the terms of the GNU General Public License
- * as published by the Free Software Foundation, either version 3 of
- * the License, or (at your option) any later version. For more
- * information, see COPYING.
- */
-#endregion
-
-using System;
-using System.Collections.Generic;
-using System.Globalization;
-using System.IO;
-using System.Linq;
-using OpenRA.FileFormats;
-using OpenRA.Primitives;
-
-namespace OpenRA.FileSystem
-{
-	public sealed class MixFile : IReadOnlyPackage
-	{
-		public string Name { get; private set; }
-		public IEnumerable<string> Contents { get { return index.Keys; } }
-
-		readonly Dictionary<string, PackageEntry> index;
-		readonly long dataStart;
-		readonly Stream s;
-		readonly FileSystem context;
-
-		public MixFile(FileSystem context, string filename)
-		{
-			Name = filename;
-			this.context = context;
-
-			s = context.Open(filename);
-			try
-			{
-				// Detect format type
-				var isCncMix = s.ReadUInt16() != 0;
-
-				// The C&C mix format doesn't contain any flags or encryption
-				var isEncrypted = false;
-				if (!isCncMix)
-					isEncrypted = (s.ReadUInt16() & 0x2) != 0;
-
-				List<PackageEntry> entries;
-				if (isEncrypted)
-				{
-					long unused;
-					entries = ParseHeader(DecryptHeader(s, 4, out dataStart), 0, out unused);
-				}
-				else
-					entries = ParseHeader(s, isCncMix ? 0 : 4, out dataStart);
-
-				index = ParseIndex(entries.ToDictionaryWithConflictLog(x => x.Hash,
-					"{0} ({1} format, Encrypted: {2}, DataStart: {3})".F(filename, isCncMix ? "C&C" : "RA/TS/RA2", isEncrypted, dataStart),
-					null, x => "(offs={0}, len={1})".F(x.Offset, x.Length)));
-			}
-			catch (Exception)
-			{
-				Dispose();
-				throw;
-			}
-		}
-
-		Dictionary<string, PackageEntry> ParseIndex(Dictionary<uint, PackageEntry> entries)
-		{
-			var classicIndex = new Dictionary<string, PackageEntry>();
-			var crcIndex = new Dictionary<string, PackageEntry>();
-			var allPossibleFilenames = new HashSet<string>();
-
-			// Try and find a local mix database
-			var dbNameClassic = PackageEntry.HashFilename("local mix database.dat", PackageHashType.Classic);
-			var dbNameCRC = PackageEntry.HashFilename("local mix database.dat", PackageHashType.CRC32);
-			foreach (var kv in entries)
-			{
-				if (kv.Key == dbNameClassic || kv.Key == dbNameCRC)
-				{
-					using (var content = GetContent(kv.Value))
-					{
-						var db = new XccLocalDatabase(content);
-						foreach (var e in db.Entries)
-							allPossibleFilenames.Add(e);
-					}
-
-					break;
-				}
-			}
-
-			// Load the global mix database
-			// TODO: This should be passed to the mix file ctor
-			if (context.Exists("global mix database.dat"))
-			{
-				using (var db = new XccGlobalDatabase(context.Open("global mix database.dat")))
-				{
-					foreach (var e in db.Entries)
-						allPossibleFilenames.Add(e);
-				}
-			}
-
-			foreach (var filename in allPossibleFilenames)
-			{
-				var classicHash = PackageEntry.HashFilename(filename, PackageHashType.Classic);
-				var crcHash = PackageEntry.HashFilename(filename, PackageHashType.CRC32);
-				PackageEntry e;
-
-				if (entries.TryGetValue(classicHash, out e))
-					classicIndex.Add(filename, e);
-
-				if (entries.TryGetValue(crcHash, out e))
-					crcIndex.Add(filename, e);
-			}
-
-			var bestIndex = crcIndex.Count > classicIndex.Count ? crcIndex : classicIndex;
-
-			var unknown = entries.Count - bestIndex.Count;
-			if (unknown > 0)
-				Log.Write("debug", "{0}: failed to resolve filenames for {1} unknown hashes".F(Name, unknown));
-
-			return bestIndex;
-		}
-
-		static List<PackageEntry> ParseHeader(Stream s, long offset, out long headerEnd)
-		{
-			s.Seek(offset, SeekOrigin.Begin);
-			var numFiles = s.ReadUInt16();
-			/*uint dataSize = */s.ReadUInt32();
-
-			var items = new List<PackageEntry>();
-			for (var i = 0; i < numFiles; i++)
-				items.Add(new PackageEntry(s));
-
-			headerEnd = offset + 6 + numFiles * PackageEntry.Size;
-			return items;
-		}
-
-		static MemoryStream DecryptHeader(Stream s, long offset, out long headerEnd)
-		{
-			s.Seek(offset, SeekOrigin.Begin);
-
-			// Decrypt blowfish key
-			var keyblock = s.ReadBytes(80);
-			var blowfishKey = new BlowfishKeyProvider().DecryptKey(keyblock);
-			var fish = new Blowfish(blowfishKey);
-
-			// Decrypt first block to work out the header length
-			var ms = Decrypt(ReadBlocks(s, offset + 80, 1), fish);
-			var numFiles = ms.ReadUInt16();
-
-			// Decrypt the full header - round bytes up to a full block
-			var blockCount = (13 + numFiles * PackageEntry.Size) / 8;
-			headerEnd = offset + 80 + blockCount * 8;
-
-			return Decrypt(ReadBlocks(s, offset + 80, blockCount), fish);
-		}
-
-		static MemoryStream Decrypt(uint[] h, Blowfish fish)
-		{
-			var decrypted = fish.Decrypt(h);
-
-			var ms = new MemoryStream();
-			var writer = new BinaryWriter(ms);
-			foreach (var t in decrypted)
-				writer.Write(t);
-			writer.Flush();
-
-			ms.Seek(0, SeekOrigin.Begin);
-			return ms;
-		}
-
-		static uint[] ReadBlocks(Stream s, long offset, int count)
-		{
-			if (offset < 0)
-				throw new ArgumentOutOfRangeException("offset", "Non-negative number required.");
-
-			if (count < 0)
-				throw new ArgumentOutOfRangeException("count", "Non-negative number required.");
-
-			if (offset + (count * 2) > s.Length)
-				throw new ArgumentException("Bytes to read {0} and offset {1} greater than stream length {2}.".F(count * 2, offset, s.Length));
-
-			s.Seek(offset, SeekOrigin.Begin);
-
-			// A block is a single encryption unit (represented as two 32-bit integers)
-			var ret = new uint[2 * count];
-			for (var i = 0; i < ret.Length; i++)
-				ret[i] = s.ReadUInt32();
-
-			return ret;
-		}
-
-		public Stream GetContent(PackageEntry entry)
-		{
-			Stream parentStream;
-			var baseOffset = dataStart + entry.Offset;
-			var nestedOffset = baseOffset + SegmentStream.GetOverallNestedOffset(s, out parentStream);
-
-			// Special case FileStream - instead of creating an in-memory copy,
-			// just reference the portion of the on-disk file that we need to save memory.
-			// We use GetType instead of 'is' here since we can't handle any derived classes of FileStream.
-			if (parentStream.GetType() == typeof(FileStream))
-			{
-				var path = ((FileStream)parentStream).Name;
-				return new SegmentStream(File.OpenRead(path), nestedOffset, entry.Length);
-			}
-
-			// For all other streams, create a copy in memory.
-			// This uses more memory but is the only way in general to ensure the returned streams won't clash.
-			s.Seek(baseOffset, SeekOrigin.Begin);
-			return new MemoryStream(s.ReadBytes((int)entry.Length));
-		}
-
-		public Stream GetStream(string filename)
-		{
-			PackageEntry e;
-			if (!index.TryGetValue(filename, out e))
-				return null;
-
-			return GetContent(e);
-		}
-
-		public IReadOnlyDictionary<string, PackageEntry> Index
-		{
-			get
-			{
-				var absoluteIndex = index.ToDictionary(e => e.Key, e => new PackageEntry(e.Value.Hash, (uint)(e.Value.Offset + dataStart), e.Value.Length));
-				return new ReadOnlyDictionary<string, PackageEntry>(absoluteIndex);
-			}
-		}
-
-		public bool Contains(string filename)
-		{
-			return index.ContainsKey(filename);
-		}
-
-		public void Dispose()
-		{
-			s.Dispose();
-		}
-	}
-}

OpenRA.Game/FileSystem/Pak.cs

@@ -1,84 +0,0 @@
-#region Copyright & License Information
-/*
- * Copyright 2007-2017 The OpenRA Developers (see AUTHORS)
- * This file is part of OpenRA, which is free software. It is made
- * available to you under the terms of the GNU General Public License
- * as published by the Free Software Foundation, either version 3 of
- * the License, or (at your option) any later version. For more
- * information, see COPYING.
- */
-#endregion
-
-using System.Collections.Generic;
-using System.IO;
-
-namespace OpenRA.FileSystem
-{
-	struct Entry
-	{
-		public uint Offset;
-		public uint Length;
-		public string Filename;
-	}
-
-	public sealed class PakFile : IReadOnlyPackage
-	{
-		public string Name { get; private set; }
-		public IEnumerable<string> Contents { get { return index.Keys; } }
-
-		readonly Dictionary<string, Entry> index;
-		readonly Stream stream;
-
-		public PakFile(FileSystem context, string filename)
-		{
-			Name = filename;
-			index = new Dictionary<string, Entry>();
-
-			stream = context.Open(filename);
-			try
-			{
-				index = new Dictionary<string, Entry>();
-				var offset = stream.ReadUInt32();
-				while (offset != 0)
-				{
-					var file = stream.ReadASCIIZ();
-					var next = stream.ReadUInt32();
-					var length = (next == 0 ? (uint)stream.Length : next) - offset;
-
-					// Ignore duplicate files
-					if (index.ContainsKey(file))
-						continue;
-
-					index.Add(file, new Entry { Offset = offset, Length = length, Filename = file });
-					offset = next;
-				}
-			}
-			catch
-			{
-				Dispose();
-				throw;
-			}
-		}
-
-		public Stream GetStream(string filename)
-		{
-			Entry entry;
-			if (!index.TryGetValue(filename, out entry))
-				return null;
-
-			stream.Seek(entry.Offset, SeekOrigin.Begin);
-			var data = stream.ReadBytes((int)entry.Length);
-			return new MemoryStream(data);
-		}
-
-		public bool Contains(string filename)
-		{
-			return index.ContainsKey(filename);
-		}
-
-		public void Dispose()
-		{
-			stream.Dispose();
-		}
-	}
-}

OpenRA.Game/FileSystem/ZipFile.cs

@@ -9,152 +9,225 @@
  */
 #endregion
 
-using System.Collections;
+using System;
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
-using System.Text;
 using ICSharpCode.SharpZipLib.Zip;
-using SZipFile = ICSharpCode.SharpZipLib.Zip.ZipFile;
+using OpenRA.Primitives;
 
 namespace OpenRA.FileSystem
 {
-	public sealed class ZipFile : IReadWritePackage
+	public class ZipFileLoader : IPackageLoader
 	{
-		public IReadWritePackage Parent { get; private set; }
-		public string Name { get; private set; }
-		readonly Stream pkgStream;
-		readonly SZipFile pkg;
+		static readonly string[] Extensions = { ".zip", ".oramap" };
 
-		static ZipFile()
+		class ReadOnlyZipFile : IReadOnlyPackage
 		{
-			ZipConstants.DefaultCodePage = Encoding.UTF8.CodePage;
-		}
+			public string Name { get; protected set; }
+			protected ZipFile pkg;
 
-		public ZipFile(Stream stream, string name, IReadOnlyPackage parent = null)
-		{
-			// SharpZipLib breaks when asked to update archives loaded from outside streams or files
-			// We can work around this by creating a clean in-memory-only file, cutting all outside references
-			pkgStream = new MemoryStream();
-			stream.CopyTo(pkgStream);
-			pkgStream.Position = 0;
+			// Dummy constructor for use with ReadWriteZipFile
+			protected ReadOnlyZipFile() { }
 
-			Name = name;
-			Parent = parent as IReadWritePackage;
-			pkg = new SZipFile(pkgStream);
-		}
+			public ReadOnlyZipFile(Stream s, string filename)
+			{
+				Name = filename;
+				pkg = ZipFileHelper.Create(s);
+			}
 
-		public ZipFile(IReadOnlyFileSystem context, string filename)
-		{
-			string name;
-			IReadOnlyPackage p;
-			if (!context.TryGetPackageContaining(filename, out p, out name))
-				throw new FileNotFoundException("Unable to find parent package for " + filename);
+			public Stream GetStream(string filename)
+			{
+				var entry = pkg.GetEntry(filename);
+				if (entry == null)
+					return null;
 
-			Name = name;
-			Parent = p as IReadWritePackage;
+				using (var z = pkg.GetInputStream(entry))
+				{
+					var ms = new MemoryStream();
+					z.CopyTo(ms);
+					ms.Seek(0, SeekOrigin.Begin);
+					return ms;
+				}
+			}
 
-			// SharpZipLib breaks when asked to update archives loaded from outside streams or files
-			// We can work around this by creating a clean in-memory-only file, cutting all outside references
-			pkgStream = new MemoryStream();
-			using (var sourceStream = p.GetStream(name))
-				sourceStream.CopyTo(pkgStream);
-			pkgStream.Position = 0;
+			public IEnumerable<string> Contents
+			{
+				get
+				{
+					foreach (ZipEntry entry in pkg)
+						yield return entry.Name;
+				}
+			}
 
-			pkg = new SZipFile(pkgStream);
-		}
+			public bool Contains(string filename)
+			{
+				return pkg.GetEntry(filename) != null;
+			}
 
-		ZipFile(string filename, IReadWritePackage parent)
-		{
-			pkgStream = new MemoryStream();
+			public void Dispose()
+			{
+				if (pkg != null)
+					pkg.Close();
+			}
 
-			Name = filename;
-			Parent = parent;
-			pkg = SZipFile.Create(pkgStream);
-		}
+			public IReadOnlyPackage OpenPackage(string filename, FileSystem context)
+			{
+				// Directories are stored with a trailing "/" in the index
+				var entry = pkg.GetEntry(filename) ?? pkg.GetEntry(filename + "/");
+				if (entry == null)
+					return null;
 
-		public static ZipFile Create(string filename, IReadWritePackage parent)
-		{
-			return new ZipFile(filename, parent);
-		}
+				if (entry.IsDirectory)
+					return new ZipFolder(this, filename);
 
-		public Stream GetStream(string filename)
-		{
-			var entry = pkg.GetEntry(filename);
-			if (entry == null)
+				// Other package types can be loaded normally
+				IReadOnlyPackage package;
+				var s = GetStream(filename);
+				if (s == null)
+					return null;
+
+				if (context.TryParsePackage(s, filename, out package))
+					return package;
+
+				s.Dispose();
 				return null;
-
-			using (var z = pkg.GetInputStream(entry))
-			{
-				var ms = new MemoryStream();
-				z.CopyTo(ms);
-				ms.Seek(0, SeekOrigin.Begin);
-				return ms;
 			}
 		}
 
-		public IEnumerable<string> Contents
+		sealed class ReadWriteZipFile : ReadOnlyZipFile, IReadWritePackage
 		{
-			get
+			readonly MemoryStream pkgStream = new MemoryStream();
+
+			public ReadWriteZipFile(string filename, bool create = false)
 			{
-				foreach (ZipEntry entry in pkg)
-					yield return entry.Name;
+				// SharpZipLib breaks when asked to update archives loaded from outside streams or files
+				// We can work around this by creating a clean in-memory-only file, cutting all outside references
+				if (!create)
+					new MemoryStream(File.ReadAllBytes(filename)).CopyTo(pkgStream);
+
+				pkgStream.Position = 0;
+				pkg = ZipFileHelper.Create(pkgStream);
+				Name = filename;
+			}
+
+			void Commit()
+			{
+				var pos = pkgStream.Position;
+				pkgStream.Position = 0;
+				File.WriteAllBytes(Name, pkgStream.ReadBytes((int)pkgStream.Length));
+				pkgStream.Position = pos;
+			}
+
+			public void Update(string filename, byte[] contents)
+			{
+				pkg.BeginUpdate();
+				pkg.Add(new StaticStreamDataSource(new MemoryStream(contents)), filename);
+				pkg.CommitUpdate();
+				Commit();
+			}
+
+			public void Delete(string filename)
+			{
+				pkg.BeginUpdate();
+				pkg.Delete(filename);
+				pkg.CommitUpdate();
+				Commit();
 			}
 		}
 
-		public bool Contains(string filename)
+		sealed class ZipFolder : IReadOnlyPackage
 		{
-			return pkg.GetEntry(filename) != null;
+			public string Name { get { return path; } }
+			public ReadOnlyZipFile Parent { get; private set; }
+			readonly string path;
+
+			public ZipFolder(ReadOnlyZipFile parent, string path)
+			{
+				if (path.EndsWith("/", StringComparison.Ordinal))
+					path = path.Substring(0, path.Length - 1);
+
+				Parent = parent;
+				this.path = path;
+			}
+
+			public Stream GetStream(string filename)
+			{
+				// Zip files use '/' as a path separator
+				return Parent.GetStream(path + '/' + filename);
+			}
+
+			public IEnumerable<string> Contents
+			{
+				get
+				{
+					foreach (var entry in Parent.Contents)
+					{
+						if (entry.StartsWith(path, StringComparison.Ordinal) && entry != path)
+						{
+							var filename = entry.Substring(path.Length + 1);
+							var dirLevels = filename.Split('/').Count(c => !string.IsNullOrEmpty(c));
+							if (dirLevels == 1)
+								yield return filename;
+						}
+					}
+				}
+			}
+
+			public bool Contains(string filename)
+			{
+				return Parent.Contains(path + '/' + filename);
+			}
+
+			public IReadOnlyPackage OpenPackage(string filename, FileSystem context)
+			{
+				return Parent.OpenPackage(path + '/' + filename, context);
+			}
+
+			public void Dispose() { /* nothing to do */ }
 		}
 
-		void Commit()
+		class StaticStreamDataSource : IStaticDataSource
 		{
-			if (Parent == null)
-				throw new InvalidDataException("Cannot update ZipFile without writable parent");
+			readonly Stream s;
+			public StaticStreamDataSource(Stream s)
+			{
+				this.s = s;
+			}
 
-			var pos = pkgStream.Position;
-			pkgStream.Position = 0;
-			Parent.Update(Name, pkgStream.ReadBytes((int)pkgStream.Length));
-			pkgStream.Position = pos;
+			public Stream GetSource()
+			{
+				return s;
+			}
 		}
 
-		public void Update(string filename, byte[] contents)
+		public bool TryParsePackage(Stream s, string filename, FileSystem context, out IReadOnlyPackage package)
 		{
-			pkg.BeginUpdate();
-			pkg.Add(new StaticStreamDataSource(new MemoryStream(contents)), filename);
-			pkg.CommitUpdate();
-			Commit();
+			if (!Extensions.Any(e => filename.EndsWith(e, StringComparison.InvariantCultureIgnoreCase)))
+			{
+				package = null;
+				return false;
+			}
+
+			package = new ReadOnlyZipFile(s, filename);
+			return true;
 		}
 
-		public void Delete(string filename)
+		public static bool TryParseReadWritePackage(string filename, out IReadWritePackage package)
 		{
-			pkg.BeginUpdate();
-			pkg.Delete(filename);
-			pkg.CommitUpdate();
-			Commit();
+			if (!Extensions.Any(e => filename.EndsWith(e, StringComparison.InvariantCultureIgnoreCase)))
+			{
+				package = null;
+				return false;
+			}
+
+			package = new ReadWriteZipFile(filename);
+			return true;
 		}
 
-		public void Dispose()
+		public static IReadWritePackage Create(string filename)
 		{
-			if (pkg != null)
-				pkg.Close();
-
-			if (pkgStream != null)
-				pkgStream.Dispose();
-		}
-	}
-
-	class StaticStreamDataSource : IStaticDataSource
-	{
-		readonly Stream s;
-		public StaticStreamDataSource(Stream s)
-		{
-			this.s = s;
-		}
-
-		public Stream GetSource()
-		{
-			return s;
+			return new ReadWriteZipFile(filename, true);
 		}
 	}
 }

OpenRA.Game/FileSystem/ZipFolder.cs

@@ -1,76 +0,0 @@
-#region Copyright & License Information
-/*
- * Copyright 2007-2017 The OpenRA Developers (see AUTHORS)
- * This file is part of OpenRA, which is free software. It is made
- * available to you under the terms of the GNU General Public License
- * as published by the Free Software Foundation, either version 3 of
- * the License, or (at your option) any later version. For more
- * information, see COPYING.
- */
-#endregion
-
-using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using System.Text;
-using ICSharpCode.SharpZipLib.Zip;
-using SZipFile = ICSharpCode.SharpZipLib.Zip.ZipFile;
-
-namespace OpenRA.FileSystem
-{
-	public sealed class ZipFolder : IReadOnlyPackage
-	{
-		public string Name { get; private set; }
-		public ZipFile Parent { get; private set; }
-		readonly string path;
-
-		static ZipFolder()
-		{
-			ZipConstants.DefaultCodePage = Encoding.UTF8.CodePage;
-		}
-
-		public ZipFolder(FileSystem context, ZipFile parent, string path, string filename)
-		{
-			if (filename.EndsWith("/"))
-				filename = filename.Substring(0, filename.Length - 1);
-
-			Name = filename;
-			Parent = parent;
-			if (path.EndsWith("/"))
-				path = path.Substring(0, path.Length - 1);
-
-			this.path = path;
-		}
-
-		public Stream GetStream(string filename)
-		{
-			// Zip files use '/' as a path separator
-			return Parent.GetStream(path + '/' + filename);
-		}
-
-		public IEnumerable<string> Contents
-		{
-			get
-			{
-				foreach (var entry in Parent.Contents)
-				{
-					if (entry.StartsWith(path) && entry != path)
-					{
-						var filename = entry.Substring(path.Length + 1);
-						var dirLevels = filename.Split('/').Count(c => !string.IsNullOrEmpty(c));
-						if (dirLevels == 1)
-							yield return filename;
-					}
-				}
-			}
-		}
-
-		public bool Contains(string filename)
-		{
-			return Parent.Contains(path + '/' + filename);
-		}
-
-		public void Dispose() { /* nothing to do */ }
-	}
-}

OpenRA.Game/Game.cs

@@ -57,6 +57,8 @@ namespace OpenRA
 
 		public static GlobalChat GlobalChat;
 
+		public static string EngineVersion { get; private set; }
+
 		static Task discoverNat;
 
 		public static OrderManager JoinServer(string host, int port, string password, bool recordReplay = true)
@@ -163,7 +165,7 @@ namespace OpenRA
 			using (new PerfTimer("PrepareMap"))
 				map = ModData.PrepareMap(mapUID);
 			using (new PerfTimer("NewWorld"))
-				OrderManager.World = new World(map, OrderManager, type);
+				OrderManager.World = new World(ModData, map, OrderManager, type);
 
 			worldRenderer = new WorldRenderer(ModData, OrderManager.World);
 
@@ -246,14 +248,26 @@ namespace OpenRA
 		{
 			Console.WriteLine("Platform is {0}", Platform.CurrentPlatform);
 
+			// Load the engine version as early as possible so it can be written to exception logs
+			try
+			{
+				EngineVersion = File.ReadAllText(Platform.ResolvePath(Path.Combine(".", "VERSION"))).Trim();
+			}
+			catch { }
+
+			if (string.IsNullOrEmpty(EngineVersion))
+				EngineVersion = "Unknown";
+
+			Console.WriteLine("Engine version is {0}", EngineVersion);
+
 			// Special case handling of Game.Mod argument: if it matches a real filesystem path
 			// then we use this to override the mod search path, and replace it with the mod id
-			var modArgument = args.GetValue("Game.Mod", null);
+			var modID = args.GetValue("Game.Mod", null);
 			var explicitModPaths = new string[0];
-			if (modArgument != null && (File.Exists(modArgument) || Directory.Exists(modArgument)))
+			if (modID != null && (File.Exists(modID) || Directory.Exists(modID)))
 			{
-				explicitModPaths = new[] { modArgument };
-				args.ReplaceValue("Game.Mod", Path.GetFileNameWithoutExtension(modArgument));
+				explicitModPaths = new[] { modID };
+				modID = Path.GetFileNameWithoutExtension(modID);
 			}
 
 			InitializeSettings(args);
@@ -317,32 +331,37 @@ namespace OpenRA
 			var modSearchArg = args.GetValue("Engine.ModSearchPaths", null);
 			var modSearchPaths = modSearchArg != null ?
 				FieldLoader.GetValue<string[]>("Engine.ModsPath", modSearchArg) :
-				new[] { Path.Combine(".", "mods"), Path.Combine("^", "mods") };
+				new[] { Path.Combine(".", "mods") };
 
 			Mods = new InstalledMods(modSearchPaths, explicitModPaths);
 			Console.WriteLine("Internal mods:");
 			foreach (var mod in Mods)
 				Console.WriteLine("\t{0}: {1} ({2})", mod.Key, mod.Value.Metadata.Title, mod.Value.Metadata.Version);
 
-			var launchPath = args.GetValue("Engine.LaunchPath", Assembly.GetEntryAssembly().Location);
-			ExternalMods = new ExternalMods(launchPath);
+			ExternalMods = new ExternalMods();
+
+			Manifest currentMod;
+			if (modID != null && Mods.TryGetValue(modID, out currentMod))
+			{
+				var launchPath = args.GetValue("Engine.LaunchPath", Assembly.GetEntryAssembly().Location);
+
+				// Sanitize input from platform-specific launchers
+				// Process.Start requires paths to not be quoted, even if they contain spaces
+				if (launchPath.First() == '"' && launchPath.Last() == '"')
+					launchPath = launchPath.Substring(1, launchPath.Length - 2);
+
+				ExternalMods.Register(Mods[modID], launchPath, ModRegistration.User);
+
+				ExternalMod activeMod;
+				if (ExternalMods.TryGetValue(ExternalMod.MakeKey(Mods[modID]), out activeMod))
+					ExternalMods.ClearInvalidRegistrations(activeMod, ModRegistration.User);
+			}
+
 			Console.WriteLine("External mods:");
 			foreach (var mod in ExternalMods)
 				Console.WriteLine("\t{0}: {1} ({2})", mod.Key, mod.Value.Title, mod.Value.Version);
 
-			InitializeMod(Settings.Game.Mod, args);
-		}
-
-		public static bool IsModInstalled(string modId)
-		{
-			return Mods.ContainsKey(modId) && Mods[modId].RequiresMods.All(IsModInstalled);
-		}
-
-		public static bool IsModInstalled(KeyValuePair<string, string> mod)
-		{
-			return Mods.ContainsKey(mod.Key)
-				&& Mods[mod.Key].Metadata.Version == mod.Value
-				&& IsModInstalled(mod.Key);
+			InitializeMod(modID, args);
 		}
 
 		public static void InitializeMod(string mod, Arguments args)
@@ -372,17 +391,17 @@ namespace OpenRA
 
 			ModData = null;
 
-			// Fall back to default if the mod doesn't exist or has missing prerequisites.
-			if (mod == null || !IsModInstalled(mod))
-				mod = args.GetValue("Engine.DefaultMod", "modchooser");
+			if (mod == null)
+				throw new InvalidOperationException("Game.Mod argument missing.");
+
+			if (!Mods.ContainsKey(mod))
+				throw new InvalidOperationException("Unknown or invalid mod '{0}'.".F(mod));
 
 			Console.WriteLine("Loading mod: {0}", mod);
-			Settings.Game.Mod = mod;
 
 			Sound.StopVideo();
 
 			ModData = new ModData(Mods[mod], Mods, true);
-			ExternalMods.Register(ModData.Manifest);
 
 			if (!ModData.LoadScreen.BeforeLoad())
 				return;
@@ -539,8 +558,6 @@ namespace OpenRA
 				var integralTickTimestep = (uiTickDelta / Timestep) * Timestep;
 				Ui.LastTickTime += integralTickTimestep >= TimestepJankThreshold ? integralTickTimestep : Timestep;
 
-				Viewport.TicksSinceLastMove += uiTickDelta / Timestep;
-
 				Sync.CheckSyncUnchanged(world, Ui.Tick);
 				Cursor.Tick();
 			}
@@ -633,9 +650,9 @@ namespace OpenRA
 
 				using (new PerfSample("render_widgets"))
 				{
-					Renderer.WorldVoxelRenderer.BeginFrame();
+					Renderer.WorldModelRenderer.BeginFrame();
 					Ui.PrepareRenderables();
-					Renderer.WorldVoxelRenderer.EndFrame();
+					Renderer.WorldModelRenderer.EndFrame();
 
 					Ui.Draw();
 

OpenRA.Game/GameRules/Ruleset.cs

@@ -29,6 +29,7 @@ namespace OpenRA
 		public readonly IReadOnlyDictionary<string, MusicInfo> Music;
 		public readonly TileSet TileSet;
 		public readonly SequenceProvider Sequences;
+		public readonly IReadOnlyDictionary<string, MiniYamlNode> ModelSequences;
 
 		public Ruleset(
 			IReadOnlyDictionary<string, ActorInfo> actors,
@@ -37,7 +38,8 @@ namespace OpenRA
 			IReadOnlyDictionary<string, SoundInfo> notifications,
 			IReadOnlyDictionary<string, MusicInfo> music,
 			TileSet tileSet,
-			SequenceProvider sequences)
+			SequenceProvider sequences,
+			IReadOnlyDictionary<string, MiniYamlNode> modelSequences)
 		{
 			Actors = actors;
 			Weapons = weapons;
@@ -46,6 +48,7 @@ namespace OpenRA
 			Music = music;
 			TileSet = tileSet;
 			Sequences = sequences;
+			ModelSequences = modelSequences;
 
 			foreach (var a in Actors.Values)
 			{
@@ -119,8 +122,11 @@ namespace OpenRA
 				var music = MergeOrDefault("Manifest,Music", fs, m.Music, null, null,
 					k => new MusicInfo(k.Key, k.Value));
 
+				var modelSequences = MergeOrDefault("Manifest,ModelSequences", fs, m.ModelSequences, null, null,
+					k => k);
+
 				// The default ruleset does not include a preferred tileset or sequence set
-				ruleset = new Ruleset(actors, weapons, voices, notifications, music, null, null);
+				ruleset = new Ruleset(actors, weapons, voices, notifications, music, null, null, modelSequences);
 			};
 
 			if (modData.IsOnMainThread)
@@ -145,12 +151,13 @@ namespace OpenRA
 			var dr = modData.DefaultRules;
 			var ts = modData.DefaultTileSets[tileSet];
 			var sequences = modData.DefaultSequences[tileSet];
-			return new Ruleset(dr.Actors, dr.Weapons, dr.Voices, dr.Notifications, dr.Music, ts, sequences);
+
+			return new Ruleset(dr.Actors, dr.Weapons, dr.Voices, dr.Notifications, dr.Music, ts, sequences, dr.ModelSequences);
 		}
 
 		public static Ruleset Load(ModData modData, IReadOnlyFileSystem fileSystem, string tileSet,
 			MiniYaml mapRules, MiniYaml mapWeapons, MiniYaml mapVoices, MiniYaml mapNotifications,
-			MiniYaml mapMusic, MiniYaml mapSequences)
+			MiniYaml mapMusic, MiniYaml mapSequences, MiniYaml mapModelSequences)
 		{
 			var m = modData.Manifest;
 			var dr = modData.DefaultRules;
@@ -180,8 +187,12 @@ namespace OpenRA
 				var sequences = mapSequences == null ? modData.DefaultSequences[tileSet] :
 					new SequenceProvider(fileSystem, modData, ts, mapSequences);
 
-				// TODO: Add support for custom voxel sequences
-				ruleset = new Ruleset(actors, weapons, voices, notifications, music, ts, sequences);
+				var modelSequences = dr.ModelSequences;
+				if (mapModelSequences != null)
+					modelSequences = MergeOrDefault("ModelSequences", fileSystem, m.ModelSequences, mapModelSequences, dr.ModelSequences,
+						k => k);
+
+				ruleset = new Ruleset(actors, weapons, voices, notifications, music, ts, sequences, modelSequences);
 			};
 
 			if (modData.IsOnMainThread)

OpenRA.Game/GameRules/WeaponInfo.cs

@@ -39,9 +39,24 @@ namespace OpenRA.GameRules
 		[Desc("The maximum range the weapon can fire.")]
 		public readonly WDist Range = WDist.Zero;
 
-		[Desc("The sound played when the weapon is fired.")]
+		[Desc("First burst is aimed at this offset relative to target position.")]
+		public readonly WVec FirstBurstTargetOffset = WVec.Zero;
+
+		[Desc("Each burst after the first lands by this offset away from the previous burst.")]
+		public readonly WVec FollowingBurstTargetOffset = WVec.Zero;
+
+		[Desc("The sound played each time the weapon is fired.")]
 		public readonly string[] Report = null;
 
+		[Desc("Sound played only on first burst in a salvo.")]
+		public readonly string[] StartBurstReport = null;
+
+		[Desc("The sound played when the weapon is reloaded.")]
+		public readonly string[] AfterFireSound = null;
+
+		[Desc("Delay in ticks to play reloading sound.")]
+		public readonly int AfterFireSoundDelay = 0;
+
 		[Desc("Delay in ticks between reloading ammo magazines.")]
 		public readonly int ReloadDelay = 1;
 
@@ -60,6 +75,9 @@ namespace OpenRA.GameRules
 		[Desc("The minimum range the weapon can fire.")]
 		public readonly WDist MinRange = WDist.Zero;
 
+		[Desc("Does this weapon aim at the target's center regardless of other targetable offsets?")]
+		public readonly bool TargetActorCenter = false;
+
 		[FieldLoader.LoadUsing("LoadProjectile")]
 		public readonly IProjectileInfo Projectile;
 

OpenRA.Game/GlobalChat.cs

@@ -79,6 +79,8 @@ namespace OpenRA.Chat
 		volatile ChatConnectionStatus connectionStatus = ChatConnectionStatus.Disconnected;
 		public ChatConnectionStatus ConnectionStatus { get { return connectionStatus; } }
 
+		string nickname;
+
 		public GlobalChat()
 		{
 			client.Encoding = System.Text.Encoding.UTF8;
@@ -106,8 +108,6 @@ namespace OpenRA.Chat
 			client.OnDevoice += (_, e) => SetUserVoiced(e.Whom, false);
 			client.OnPart += OnPart;
 			client.OnQuit += OnQuit;
-
-			TrySetNickname(Game.Settings.Player.Name);
 		}
 
 		void SetUserOp(string whom, bool isOp)
@@ -130,11 +130,13 @@ namespace OpenRA.Chat
 			});
 		}
 
-		public void Connect()
+		public void Connect(string nickname)
 		{
-			if (client.IsConnected)
+			if (client.IsConnected || !IsValidNickname(nickname))
 				return;
 
+			this.nickname = nickname;
+
 			new Thread(() =>
 			{
 				try
@@ -185,12 +187,7 @@ namespace OpenRA.Chat
 			AddNotification("Connected.");
 			connectionStatus = ChatConnectionStatus.Connected;
 
-			// Guard against settings.yaml modification
-			var nick = SanitizedName(Game.Settings.Chat.Nickname);
-			if (nick != Game.Settings.Chat.Nickname)
-				Game.RunAfterTick(() => Game.Settings.Chat.Nickname = nick);
-
-			client.Login(nick, "in-game IRC client", 0, "OpenRA");
+			client.Login(nickname, "in-game IRC client", 0, "OpenRA");
 			client.RfcJoin("#" + Game.Settings.Chat.Channel);
 		}
 
@@ -341,7 +338,6 @@ namespace OpenRA.Chat
 			if (Rfc2812.IsValidNickname(nick))
 			{
 				client.RfcNick(nick);
-				Game.Settings.Chat.Nickname = nick;
 				return true;
 			}
 
@@ -368,7 +364,7 @@ namespace OpenRA.Chat
 
 			AddNotification("Disconnecting from {0}...".F(client.Address));
 
-			Game.RunAfterTick(() => Game.Settings.Chat.ConnectAutomatically = false);
+			Game.RunAfterTick(() => { Game.Settings.Chat.ConnectAutomatically = false; Game.Settings.Save(); });
 		}
 
 		public void Dispose()

OpenRA.Game/Graphics/HSLColor.cs

@@ -95,7 +95,8 @@ namespace OpenRA.Graphics
 
 		public static bool operator ==(HSLColor me, HSLColor other)
 		{
-			return me.H == other.H && me.S == other.S && me.L == other.L;
+			// Binary floating point numbers (float, double) calculations can yield the same RGB color created by different functions with little different HSL representation
+			return (me.H == other.H && me.S == other.S && me.L == other.L) || me.RGB == other.RGB;
 		}
 
 		public static bool operator !=(HSLColor me, HSLColor other) { return !(me == other); }

OpenRA.Game/Graphics/Model.cs

@@ -0,0 +1,83 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2017 The OpenRA Developers (see AUTHORS)
+ * This file is part of OpenRA, which is free software. It is made
+ * available to you under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version. For more
+ * information, see COPYING.
+ */
+#endregion
+
+using System;
+using OpenRA.FileSystem;
+
+namespace OpenRA.Graphics
+{
+	public interface IModel
+	{
+		uint Frames { get; }
+		uint Sections { get; }
+
+		float[] TransformationMatrix(uint section, uint frame);
+		float[] Size { get; }
+		float[] Bounds(uint frame);
+		ModelRenderData RenderData(uint section);
+	}
+
+	public struct ModelRenderData
+	{
+		public readonly int Start;
+		public readonly int Count;
+		public readonly Sheet Sheet;
+
+		public ModelRenderData(int start, int count, Sheet sheet)
+		{
+			Start = start;
+			Count = count;
+			Sheet = sheet;
+		}
+	}
+
+	public interface IModelCache : IDisposable
+	{
+		IModel GetModelSequence(string model, string sequence);
+		bool HasModelSequence(string model, string sequence);
+		IVertexBuffer<Vertex> VertexBuffer { get; }
+	}
+
+	public interface IModelSequenceLoader
+	{
+		Action<string> OnMissingModelError { get; set; }
+		IModelCache CacheModels(IReadOnlyFileSystem fileSystem, ModData modData, IReadOnlyDictionary<string, MiniYamlNode> modelDefinitions);
+	}
+
+	public class PlaceholderModelSequenceLoader : IModelSequenceLoader
+	{
+		public Action<string> OnMissingModelError { get; set; }
+
+		class PlaceholderModelCache : IModelCache
+		{
+			public IVertexBuffer<Vertex> VertexBuffer { get { throw new NotImplementedException(); } }
+
+			public void Dispose() { }
+
+			public IModel GetModelSequence(string model, string sequence)
+			{
+				throw new NotImplementedException();
+			}
+
+			public bool HasModelSequence(string model, string sequence)
+			{
+				throw new NotImplementedException();
+			}
+		}
+
+		public PlaceholderModelSequenceLoader(ModData modData) { }
+
+		public IModelCache CacheModels(IReadOnlyFileSystem fileSystem, ModData modData, IReadOnlyDictionary<string, MiniYamlNode> modelDefinitions)
+		{
+			return new PlaceholderModelCache();
+		}
+	}
+}

OpenRA.Game/Graphics/ModelAnimation.cs

@@ -14,18 +14,18 @@ using System.Collections.Generic;
 
 namespace OpenRA.Graphics
 {
-	public struct VoxelAnimation
+	public struct ModelAnimation
 	{
-		public readonly Voxel Voxel;
+		public readonly IModel Model;
 		public readonly Func<WVec> OffsetFunc;
 		public readonly Func<IEnumerable<WRot>> RotationFunc;
 		public readonly Func<bool> DisableFunc;
 		public readonly Func<uint> FrameFunc;
 		public readonly bool ShowShadow;
 
-		public VoxelAnimation(Voxel voxel, Func<WVec> offset, Func<IEnumerable<WRot>> rotation, Func<bool> disable, Func<uint> frame, bool showshadow)
+		public ModelAnimation(IModel model, Func<WVec> offset, Func<IEnumerable<WRot>> rotation, Func<bool> disable, Func<uint> frame, bool showshadow)
 		{
-			Voxel = voxel;
+			Model = model;
 			OffsetFunc = offset;
 			RotationFunc = rotation;
 			DisableFunc = disable;

OpenRA.Game/Graphics/ModelRenderer.cs

@@ -17,14 +17,14 @@ using OpenRA.Primitives;
 
 namespace OpenRA.Graphics
 {
-	public class VoxelRenderProxy
+	public class ModelRenderProxy
 	{
 		public readonly Sprite Sprite;
 		public readonly Sprite ShadowSprite;
 		public readonly float ShadowDirection;
 		public readonly float3[] ProjectedShadowBounds;
 
-		public VoxelRenderProxy(Sprite sprite, Sprite shadowSprite, float3[] projectedShadowBounds, float shadowDirection)
+		public ModelRenderProxy(Sprite sprite, Sprite shadowSprite, float3[] projectedShadowBounds, float shadowDirection)
 		{
 			Sprite = sprite;
 			ShadowSprite = shadowSprite;
@@ -33,7 +33,7 @@ namespace OpenRA.Graphics
 		}
 	}
 
-	public sealed class VoxelRenderer : IDisposable
+	public sealed class ModelRenderer : IDisposable
 	{
 		// Static constants
 		static readonly float[] ShadowDiffuse = new float[] { 0, 0, 0 };
@@ -53,7 +53,7 @@ namespace OpenRA.Graphics
 
 		SheetBuilder sheetBuilder;
 
-		public VoxelRenderer(Renderer renderer, IShader shader)
+		public ModelRenderer(Renderer renderer, IShader shader)
 		{
 			this.renderer = renderer;
 			this.shader = shader;
@@ -78,8 +78,8 @@ namespace OpenRA.Graphics
 			shader.SetMatrix("View", view);
 		}
 
-		public VoxelRenderProxy RenderAsync(
-			WorldRenderer wr, IEnumerable<VoxelAnimation> voxels, WRot camera, float scale,
+		public ModelRenderProxy RenderAsync(
+			WorldRenderer wr, IEnumerable<ModelAnimation> models, WRot camera, float scale,
 			float[] groundNormal, WRot lightSource, float[] lightAmbientColor, float[] lightDiffuseColor,
 			PaletteReference color, PaletteReference normals, PaletteReference shadowPalette)
 		{
@@ -105,18 +105,18 @@ namespace OpenRA.Graphics
 			var stl = new float2(float.MaxValue, float.MaxValue);
 			var sbr = new float2(float.MinValue, float.MinValue);
 
-			foreach (var v in voxels)
+			foreach (var m in models)
 			{
 				// Convert screen offset back to world coords
-				var offsetVec = Util.MatrixVectorMultiply(invCameraTransform, wr.ScreenVector(v.OffsetFunc()));
+				var offsetVec = Util.MatrixVectorMultiply(invCameraTransform, wr.ScreenVector(m.OffsetFunc()));
 				var offsetTransform = Util.TranslationMatrix(offsetVec[0], offsetVec[1], offsetVec[2]);
 
-				var worldTransform = v.RotationFunc().Aggregate(Util.IdentityMatrix(),
+				var worldTransform = m.RotationFunc().Aggregate(Util.IdentityMatrix(),
 					(x, y) => Util.MatrixMultiply(Util.MakeFloatMatrix(y.AsMatrix()), x));
 				worldTransform = Util.MatrixMultiply(scaleTransform, worldTransform);
 				worldTransform = Util.MatrixMultiply(offsetTransform, worldTransform);
 
-				var bounds = v.Voxel.Bounds(v.FrameFunc());
+				var bounds = m.Model.Bounds(m.FrameFunc());
 				var worldBounds = Util.MatrixAABBMultiply(worldTransform, bounds);
 				var screenBounds = Util.MatrixAABBMultiply(cameraTransform, worldBounds);
 				var shadowBounds = Util.MatrixAABBMultiply(shadowTransform, worldBounds);
@@ -177,13 +177,13 @@ namespace OpenRA.Graphics
 
 			doRender.Add(Pair.New<Sheet, Action>(sprite.Sheet, () =>
 			{
-				foreach (var v in voxels)
+				foreach (var m in models)
 				{
 					// Convert screen offset to world offset
-					var offsetVec = Util.MatrixVectorMultiply(invCameraTransform, wr.ScreenVector(v.OffsetFunc()));
+					var offsetVec = Util.MatrixVectorMultiply(invCameraTransform, wr.ScreenVector(m.OffsetFunc()));
 					var offsetTransform = Util.TranslationMatrix(offsetVec[0], offsetVec[1], offsetVec[2]);
 
-					var rotations = v.RotationFunc().Aggregate(Util.IdentityMatrix(),
+					var rotations = m.RotationFunc().Aggregate(Util.IdentityMatrix(),
 						(x, y) => Util.MatrixMultiply(Util.MakeFloatMatrix(y.AsMatrix()), x));
 					var worldTransform = Util.MatrixMultiply(scaleTransform, rotations);
 					worldTransform = Util.MatrixMultiply(offsetTransform, worldTransform);
@@ -196,11 +196,11 @@ namespace OpenRA.Graphics
 
 					var lightTransform = Util.MatrixMultiply(Util.MatrixInverse(rotations), invShadowTransform);
 
-					var frame = v.FrameFunc();
-					for (uint i = 0; i < v.Voxel.Limbs; i++)
+					var frame = m.FrameFunc();
+					for (uint i = 0; i < m.Model.Sections; i++)
 					{
-						var rd = v.Voxel.RenderData(i);
-						var t = v.Voxel.TransformationMatrix(i, frame);
+						var rd = m.Model.RenderData(i);
+						var t = m.Model.TransformationMatrix(i, frame);
 						var it = Util.MatrixInverse(t);
 						if (it == null)
 							throw new InvalidOperationException("Failed to invert the transformed matrix of frame {0} during RenderAsync.".F(i));
@@ -208,12 +208,12 @@ namespace OpenRA.Graphics
 						// Transform light vector from shadow -> world -> limb coords
 						var lightDirection = ExtractRotationVector(Util.MatrixMultiply(it, lightTransform));
 
-						Render(rd, Util.MatrixMultiply(transform, t), lightDirection,
+						Render(rd, wr.World.ModelCache, Util.MatrixMultiply(transform, t), lightDirection,
 							lightAmbientColor, lightDiffuseColor, color.TextureMidIndex, normals.TextureMidIndex);
 
 						// Disable shadow normals by forcing zero diffuse and identity ambient light
-						if (v.ShowShadow)
-							Render(rd, Util.MatrixMultiply(shadow, t), lightDirection,
+						if (m.ShowShadow)
+							Render(rd, wr.World.ModelCache, Util.MatrixMultiply(shadow, t), lightDirection,
 								ShadowAmbient, ShadowDiffuse, shadowPalette.TextureMidIndex, normals.TextureMidIndex);
 					}
 				}
@@ -221,7 +221,7 @@ namespace OpenRA.Graphics
 
 			var screenLightVector = Util.MatrixVectorMultiply(invShadowTransform, ZVector);
 			screenLightVector = Util.MatrixVectorMultiply(cameraTransform, screenLightVector);
-			return new VoxelRenderProxy(sprite, shadowSprite, screenCorners, -screenLightVector[2] / screenLightVector[1]);
+			return new ModelRenderProxy(sprite, shadowSprite, screenCorners, -screenLightVector[2] / screenLightVector[1]);
 		}
 
 		static void CalculateSpriteGeometry(float2 tl, float2 br, float scale, out Size size, out int2 offset)
@@ -258,7 +258,8 @@ namespace OpenRA.Graphics
 		}
 
 		void Render(
-			VoxelRenderData renderData,
+			ModelRenderData renderData,
+			IModelCache cache,
 			float[] t, float[] lightDirection,
 			float[] ambientLight, float[] diffuseLight,
 			float colorPaletteTextureMidIndex, float normalsPaletteTextureMidIndex)
@@ -270,7 +271,7 @@ namespace OpenRA.Graphics
 			shader.SetVec("AmbientLight", ambientLight, 3);
 			shader.SetVec("DiffuseLight", diffuseLight, 3);
 
-			shader.Render(() => renderer.DrawBatch(Game.ModData.VoxelLoader.VertexBuffer, renderData.Start, renderData.Count, PrimitiveType.TriangleList));
+			shader.Render(() => renderer.DrawBatch(cache.VertexBuffer, renderData.Start, renderData.Count, PrimitiveType.TriangleList));
 		}
 
 		public void BeginFrame()

OpenRA.Game/Graphics/Viewport.cs

@@ -80,7 +80,7 @@ namespace OpenRA.Graphics
 			}
 		}
 
-		public static long TicksSinceLastMove = 0;
+		public static long LastMoveRunTime = 0;
 		public static int2 LastMousePos;
 
 		float ClosestTo(float[] collection, float target)

OpenRA.Game/Graphics/VoxelProvider.cs

@@ -1,84 +0,0 @@
-#region Copyright & License Information
-/*
- * Copyright 2007-2017 The OpenRA Developers (see AUTHORS)
- * This file is part of OpenRA, which is free software. It is made
- * available to you under the terms of the GNU General Public License
- * as published by the Free Software Foundation, either version 3 of
- * the License, or (at your option) any later version. For more
- * information, see COPYING.
- */
-#endregion
-
-using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using OpenRA.FileSystem;
-
-namespace OpenRA.Graphics
-{
-	public static class VoxelProvider
-	{
-		static Dictionary<string, Dictionary<string, Voxel>> units;
-
-		public static void Initialize(VoxelLoader loader, IReadOnlyFileSystem fileSystem, List<MiniYamlNode> sequences)
-		{
-			units = new Dictionary<string, Dictionary<string, Voxel>>();
-			foreach (var s in sequences)
-				LoadVoxelsForUnit(loader, s.Key, s.Value);
-
-			loader.RefreshBuffer();
-		}
-
-		static Voxel LoadVoxel(VoxelLoader voxelLoader, string unit, MiniYaml info)
-		{
-			var vxl = unit;
-			var hva = unit;
-			if (info.Value != null)
-			{
-				var fields = info.Value.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
-				if (fields.Length >= 1)
-					vxl = hva = fields[0].Trim();
-
-				if (fields.Length >= 2)
-					hva = fields[1].Trim();
-			}
-
-			return voxelLoader.Load(vxl, hva);
-		}
-
-		static void LoadVoxelsForUnit(VoxelLoader loader, string unit, MiniYaml sequences)
-		{
-			Game.ModData.LoadScreen.Display();
-			try
-			{
-				var seq = sequences.ToDictionary(my => LoadVoxel(loader, unit, my));
-				units.Add(unit, seq);
-			}
-			catch (FileNotFoundException) { } // Do nothing; we can crash later if we actually wanted art
-		}
-
-		public static Voxel GetVoxel(string unitName, string voxelName)
-		{
-			try { return units[unitName][voxelName]; }
-			catch (KeyNotFoundException)
-			{
-				if (units.ContainsKey(unitName))
-					throw new InvalidOperationException(
-						"Unit `{0}` does not have a voxel `{1}`".F(unitName, voxelName));
-				else
-					throw new InvalidOperationException(
-						"Unit `{0}` does not have any voxels defined.".F(unitName));
-			}
-		}
-
-		public static bool HasVoxel(string unit, string seq)
-		{
-			if (!units.ContainsKey(unit))
-				throw new InvalidOperationException(
-					"Unit `{0}` does not have any voxels defined.".F(unit));
-
-			return units[unit].ContainsKey(seq);
-		}
-	}
-}

OpenRA.Game/Graphics/WorldRenderer.cs

@@ -24,6 +24,7 @@ namespace OpenRA.Graphics
 			r => ZPosition(r.Pos, r.ZOffset);
 
 		public readonly Size TileSize;
+		public readonly int TileScale;
 		public readonly World World;
 		public readonly Theater Theater;
 		public Viewport Viewport { get; private set; }
@@ -41,6 +42,7 @@ namespace OpenRA.Graphics
 		{
 			World = world;
 			TileSize = World.Map.Grid.TileSize;
+			TileScale = World.Map.Grid.Type == MapGridType.RectangularIsometric ? 1448 : 1024;
 			Viewport = new Viewport(this, world.Map);
 
 			createPaletteReference = CreatePaletteReference;
@@ -111,9 +113,9 @@ namespace OpenRA.Graphics
 			worldRenderables = worldRenderables.Concat(World.Effects.SelectMany(e => e.Render(this)));
 			worldRenderables = worldRenderables.OrderBy(RenderableScreenZPositionComparisonKey);
 
-			Game.Renderer.WorldVoxelRenderer.BeginFrame();
+			Game.Renderer.WorldModelRenderer.BeginFrame();
 			var renderables = worldRenderables.Select(r => r.PrepareRender(this)).ToList();
-			Game.Renderer.WorldVoxelRenderer.EndFrame();
+			Game.Renderer.WorldModelRenderer.EndFrame();
 
 			return renderables;
 		}
@@ -180,14 +182,14 @@ namespace OpenRA.Graphics
 			if (World.OrderGenerator != null)
 				aboveShroudOrderGenerator = World.OrderGenerator.RenderAboveShroud(this, World);
 
-			Game.Renderer.WorldVoxelRenderer.BeginFrame();
+			Game.Renderer.WorldModelRenderer.BeginFrame();
 			var finalOverlayRenderables = aboveShroud
 				.Concat(aboveShroudSelected)
 				.Concat(aboveShroudEffects)
 				.Concat(aboveShroudOrderGenerator)
 				.Select(r => r.PrepareRender(this))
 				.ToList();
-			Game.Renderer.WorldVoxelRenderer.EndFrame();
+			Game.Renderer.WorldModelRenderer.EndFrame();
 
 			// HACK: Keep old grouping behaviour
 			foreach (var g in finalOverlayRenderables.GroupBy(prs => prs.GetType()))
@@ -216,13 +218,13 @@ namespace OpenRA.Graphics
 		// Conversion between world and screen coordinates
 		public float2 ScreenPosition(WPos pos)
 		{
-			return new float2(TileSize.Width * pos.X / 1024f, TileSize.Height * (pos.Y - pos.Z) / 1024f);
+			return new float2((float)TileSize.Width * pos.X / TileScale, (float)TileSize.Height * (pos.Y - pos.Z) / TileScale);
 		}
 
 		public float3 Screen3DPosition(WPos pos)
 		{
-			var z = ZPosition(pos, 0) * TileSize.Height / 1024f;
-			return new float3(TileSize.Width * pos.X / 1024f, TileSize.Height * (pos.Y - pos.Z) / 1024f, z);
+			var z = ZPosition(pos, 0) * (float)TileSize.Height / TileScale;
+			return new float3((float)TileSize.Width * pos.X / TileScale, (float)TileSize.Height * (pos.Y - pos.Z) / TileScale, z);
 		}
 
 		public int2 ScreenPxPosition(WPos pos)
@@ -239,16 +241,16 @@ namespace OpenRA.Graphics
 			return new float3((float)Math.Round(px.X), (float)Math.Round(px.Y), px.Z);
 		}
 
-		// For scaling vectors to pixel sizes in the voxel renderer
+		// For scaling vectors to pixel sizes in the model renderer
 		public float3 ScreenVectorComponents(WVec vec)
 		{
 			return new float3(
-				TileSize.Width * vec.X / 1024f,
-				TileSize.Height * (vec.Y - vec.Z) / 1024f,
-				TileSize.Height * vec.Z / 1024f);
+				(float)TileSize.Width * vec.X / TileScale,
+				(float)TileSize.Height * (vec.Y - vec.Z) / TileScale,
+				(float)TileSize.Height * vec.Z / TileScale);
 		}
 
-		// For scaling vectors to pixel sizes in the voxel renderer
+		// For scaling vectors to pixel sizes in the model renderer
 		public float[] ScreenVector(WVec vec)
 		{
 			var xyz = ScreenVectorComponents(vec);
@@ -264,7 +266,7 @@ namespace OpenRA.Graphics
 
 		public float ScreenZPosition(WPos pos, int offset)
 		{
-			return ZPosition(pos, offset) * TileSize.Height / 1024f;
+			return ZPosition(pos, offset) * (float)TileSize.Height / TileScale;
 		}
 
 		static int ZPosition(WPos pos, int offset)
@@ -278,7 +280,7 @@ namespace OpenRA.Graphics
 		/// </summary>
 		public WPos ProjectedPosition(int2 screenPx)
 		{
-			return new WPos(1024 * screenPx.X / TileSize.Width, 1024 * screenPx.Y / TileSize.Height, 0);
+			return new WPos(TileScale * screenPx.X / TileSize.Width, TileScale * screenPx.Y / TileSize.Height, 0);
 		}
 
 		public void Dispose()

OpenRA.Game/Group.cs

@@ -1,45 +0,0 @@
-#region Copyright & License Information
-/*
- * Copyright 2007-2017 The OpenRA Developers (see AUTHORS)
- * This file is part of OpenRA, which is free software. It is made
- * available to you under the terms of the GNU General Public License
- * as published by the Free Software Foundation, either version 3 of
- * the License, or (at your option) any later version. For more
- * information, see COPYING.
- */
-#endregion
-
-using System.Collections.Generic;
-using System.Linq;
-
-namespace OpenRA
-{
-	public class Group
-	{
-		readonly Actor[] actors;
-		readonly int id;
-
-		static int nextGroup;
-
-		public IEnumerable<Actor> Actors { get { return actors; } }
-
-		public Group(IEnumerable<Actor> actors)
-		{
-			this.actors = actors.ToArray();
-
-			foreach (var a in actors)
-				a.Group = this;
-
-			id = nextGroup++;
-		}
-
-		public void Dump()
-		{
-			/* debug crap */
-			Game.Debug("Group #{0}: {1}".F(
-				id, actors.Select(a => "#{0} {1}".F(a.ActorID, a.Info.Name)).JoinWith(",")));
-		}
-
-		/* TODO: add lazy group path crap, groupleader, pruning, etc */
-	}
-}

OpenRA.Game/Input/IInputHandler.cs

@@ -69,5 +69,6 @@ namespace OpenRA
 		public Modifiers Modifiers;
 		public int MultiTapCount;
 		public char UnicodeChar;
+		public bool IsRepeat;
 	}
 }

OpenRA.Game/InstalledMods.cs

@@ -46,12 +46,13 @@ namespace OpenRA
 			{
 				try
 				{
-					var directory = new DirectoryInfo(Platform.ResolvePath(path));
+					var resolved = Platform.ResolvePath(path);
+					if (!Directory.Exists(resolved))
+						continue;
+
+					var directory = new DirectoryInfo(resolved);
 					foreach (var subdir in directory.EnumerateDirectories())
 						mods.Add(Pair.New(subdir.Name, subdir.FullName));
-
-					foreach (var file in directory.EnumerateFiles("*.oramod"))
-						mods.Add(Pair.New(Path.GetFileNameWithoutExtension(file.Name), file.FullName));
 				}
 				catch (Exception e)
 				{
@@ -67,40 +68,39 @@ namespace OpenRA
 			IReadOnlyPackage package = null;
 			try
 			{
-				if (Directory.Exists(path))
-					package = new Folder(path);
-				else
+				if (!Directory.Exists(path))
 				{
-					try
-					{
-						using (var fileStream = File.OpenRead(path))
-							package = new ZipFile(fileStream, path);
-					}
-					catch
-					{
-						throw new InvalidDataException(path + " is not a valid mod package");
-					}
+					Log.Write("debug", path + " is not a valid mod package");
+					return null;
 				}
 
-				if (!package.Contains("mod.yaml"))
-					throw new InvalidDataException(path + " is not a valid mod package");
+				package = new Folder(path);
+				if (package.Contains("mod.yaml"))
+				{
+					var manifest = new Manifest(id, package);
 
-				using (var stream = package.GetStream("icon.png"))
-					if (stream != null)
-						using (var bitmap = new Bitmap(stream))
-							icons[id] = sheetBuilder.Add(bitmap);
+					if (package.Contains("icon.png"))
+					{
+						using (var stream = package.GetStream("icon.png"))
+							if (stream != null)
+								using (var bitmap = new Bitmap(stream))
+									icons[id] = sheetBuilder.Add(bitmap);
+					}
+					else if (!manifest.Metadata.Hidden)
+						Log.Write("debug", "Mod '{0}' is missing 'icon.png'.".F(path));
 
-				// Mods in the support directory and oramod packages (which are listed later
-				// in the CandidateMods list) override mods in the main install.
-				return new Manifest(id, package);
+					return manifest;
+				}
 			}
-			catch (Exception)
+			catch (Exception e)
 			{
-				if (package != null)
-					package.Dispose();
-
-				return null;
+				Log.Write("debug", "Load mod '{0}': {1}".F(path, e));
 			}
+
+			if (package != null)
+				package.Dispose();
+
+			return null;
 		}
 
 		Dictionary<string, Manifest> GetInstalledMods(IEnumerable<string> searchPaths, IEnumerable<string> explicitPaths)
@@ -112,9 +112,6 @@ namespace OpenRA
 			foreach (var pair in candidates)
 			{
 				var mod = LoadMod(pair.First, pair.Second);
-
-				// Mods in the support directory and oramod packages (which are listed later
-				// in the CandidateMods list) override mods in the main install.
 				if (mod != null)
 					ret[pair.First] = mod;
 			}

OpenRA.Game/Manifest.cs

@@ -31,12 +31,21 @@ namespace OpenRA
 		}
 	}
 
+	public sealed class ModelSequenceFormat : IGlobalModData
+	{
+		public readonly string Type;
+		public readonly IReadOnlyDictionary<string, MiniYaml> Metadata;
+		public ModelSequenceFormat(MiniYaml yaml)
+		{
+			Type = yaml.Value;
+			Metadata = new ReadOnlyDictionary<string, MiniYaml>(yaml.ToDictionary());
+		}
+	}
+
 	public class ModMetadata
 	{
 		public string Title;
-		public string Description;
 		public string Version;
-		public string Author;
 		public bool Hidden;
 	}
 
@@ -48,25 +57,24 @@ namespace OpenRA
 		public readonly ModMetadata Metadata;
 		public readonly string[]
 			Rules, ServerTraits,
-			Sequences, VoxelSequences, Cursors, Chrome, Assemblies, ChromeLayout,
+			Sequences, ModelSequences, Cursors, Chrome, Assemblies, ChromeLayout,
 			Weapons, Voices, Notifications, Music, Translations, TileSets,
 			ChromeMetrics, MapCompatibility, Missions;
 
 		public readonly IReadOnlyDictionary<string, string> Packages;
 		public readonly IReadOnlyDictionary<string, string> MapFolders;
 		public readonly MiniYaml LoadScreen;
-
-		public readonly Dictionary<string, string> RequiresMods;
 		public readonly Dictionary<string, Pair<string, int>> Fonts;
 
 		public readonly string[] SoundFormats = { };
 		public readonly string[] SpriteFormats = { };
+		public readonly string[] PackageFormats = { };
 
 		readonly string[] reservedModuleNames = { "Metadata", "Folders", "MapFolders", "Packages", "Rules",
-			"Sequences", "VoxelSequences", "Cursors", "Chrome", "Assemblies", "ChromeLayout", "Weapons",
+			"Sequences", "ModelSequences", "Cursors", "Chrome", "Assemblies", "ChromeLayout", "Weapons",
 			"Voices", "Notifications", "Music", "Translations", "TileSets", "ChromeMetrics", "Missions",
 			"ServerTraits", "LoadScreen", "Fonts", "SupportsMapsFrom", "SoundFormats", "SpriteFormats",
-			"RequiresMods" };
+			"RequiresMods", "PackageFormats" };
 
 		readonly TypeDictionary modules = new TypeDictionary();
 		readonly Dictionary<string, MiniYaml> yaml;
@@ -90,7 +98,7 @@ namespace OpenRA
 
 			Rules = YamlList(yaml, "Rules");
 			Sequences = YamlList(yaml, "Sequences");
-			VoxelSequences = YamlList(yaml, "VoxelSequences");
+			ModelSequences = YamlList(yaml, "ModelSequences");
 			Cursors = YamlList(yaml, "Cursors");
 			Chrome = YamlList(yaml, "Chrome");
 			Assemblies = YamlList(yaml, "Assemblies");
@@ -115,8 +123,6 @@ namespace OpenRA
 				return Pair.New(nd["Font"].Value, Exts.ParseIntegerInvariant(nd["Size"].Value));
 			});
 
-			RequiresMods = yaml["RequiresMods"].ToDictionary(my => my.Value);
-
 			// Allow inherited mods to import parent maps.
 			var compat = new List<string> { Id };
 
@@ -125,6 +131,9 @@ namespace OpenRA
 
 			MapCompatibility = compat.ToArray();
 
+			if (yaml.ContainsKey("PackageFormats"))
+				PackageFormats = FieldLoader.GetValue<string[]>("PackageFormats", yaml["PackageFormats"].Value);
+
 			if (yaml.ContainsKey("SoundFormats"))
 				SoundFormats = FieldLoader.GetValue<string[]>("SoundFormats", yaml["SoundFormats"].Value);
 

OpenRA.Game/Map/Map.cs

@@ -18,6 +18,7 @@ using System.Linq;
 using System.Reflection;
 using System.Text;
 using OpenRA.FileSystem;
+using OpenRA.Graphics;
 using OpenRA.Support;
 using OpenRA.Traits;
 
@@ -168,7 +169,7 @@ namespace OpenRA
 			new MapField("Actors", "ActorDefinitions"),
 			new MapField("Rules", "RuleDefinitions", required: false),
 			new MapField("Sequences", "SequenceDefinitions", required: false),
-			new MapField("VoxelSequences", "VoxelSequenceDefinitions", required: false),
+			new MapField("ModelSequences", "ModelSequenceDefinitions", required: false),
 			new MapField("Weapons", "WeaponDefinitions", required: false),
 			new MapField("Voices", "VoiceDefinitions", required: false),
 			new MapField("Music", "MusicDefinitions", required: false),
@@ -199,7 +200,7 @@ namespace OpenRA
 		// Custom map yaml. Public for access by the map importers and lint checks
 		public readonly MiniYaml RuleDefinitions;
 		public readonly MiniYaml SequenceDefinitions;
-		public readonly MiniYaml VoxelSequenceDefinitions;
+		public readonly MiniYaml ModelSequenceDefinitions;
 		public readonly MiniYaml WeaponDefinitions;
 		public readonly MiniYaml VoiceDefinitions;
 		public readonly MiniYaml MusicDefinitions;
@@ -386,13 +387,13 @@ namespace OpenRA
 			try
 			{
 				Rules = Ruleset.Load(modData, this, Tileset, RuleDefinitions, WeaponDefinitions,
-					VoiceDefinitions, NotificationDefinitions, MusicDefinitions, SequenceDefinitions);
+					VoiceDefinitions, NotificationDefinitions, MusicDefinitions, SequenceDefinitions, ModelSequenceDefinitions);
 			}
 			catch (Exception e)
 			{
+				Log.Write("debug", "Failed to load rules for {0} with error {1}", Title, e);
 				InvalidCustomRules = true;
 				Rules = Ruleset.LoadDefaultsForTileSet(modData, Tileset);
-				Log.Write("debug", "Failed to load rules for {0} with error {1}", Title, e.Message);
 			}
 
 			Rules.Sequences.Preload();
@@ -761,8 +762,11 @@ namespace OpenRA
 			// (b) Therefore:
 			//  - ax + by adds (a - b) * 512 + 512 to u
 			//  - ax + by adds (a + b) * 512 + 512 to v
-			var z = Height.Contains(cell) ? 512 * Height[cell] : 0;
-			return new WPos(512 * (cell.X - cell.Y + 1), 512 * (cell.X + cell.Y + 1), z);
+			// (c) u, v coordinates run diagonally to the cell axes, and we define
+			//     1024 as the length projected onto the primary cell axis
+			//  - 512 * sqrt(2) = 724
+			var z = Height.Contains(cell) ? 724 * Height[cell] : 0;
+			return new WPos(724 * (cell.X - cell.Y + 1), 724 * (cell.X + cell.Y + 1), z);
 		}
 
 		public WPos CenterOfSubCell(CPos cell, SubCell subCell)
@@ -786,15 +790,15 @@ namespace OpenRA
 				return new CPos(pos.X / 1024, pos.Y / 1024);
 
 			// Convert from world position to isometric cell position:
-			// (a) Subtract (512, 512) to move the rotation center to the middle of the corner cell
-			// (b) Rotate axes by -pi/4
-			// (c) Divide through by sqrt(2) to bring us to an equivalent world pos aligned with u,v axes
-			// (d) Apply an offset so that the integer division by 1024 rounds in the right direction:
-			//      (i) u is always positive, so add 512 (which then partially cancels the -1024 term from the rotation)
-			//     (ii) v can be negative, so we need to be careful about rounding directions.  We add 512 *away from 0* (negative if y > x).
-			// (e) Divide by 1024 to bring into cell coords.
-			var u = (pos.Y + pos.X - 512) / 1024;
-			var v = (pos.Y - pos.X + (pos.Y > pos.X ? 512 : -512)) / 1024;
+			// (a) Subtract ([1/2 cell], [1/2 cell]) to move the rotation center to the middle of the corner cell
+			// (b) Rotate axes by -pi/4 to align the world axes with the cell axes
+			// (c) Apply an offset so that the integer division by [1 cell] rounds in the right direction:
+			//      (i) u is always positive, so add [1/2 cell] (which then partially cancels the -[1 cell] term from the rotation)
+			//     (ii) v can be negative, so we need to be careful about rounding directions.  We add [1/2 cell] *away from 0* (negative if y > x).
+			// (e) Divide by [1 cell] to bring into cell coords.
+			// The world axes are rotated relative to the cell axes, so the standard cell size (1024) is increased by a factor of sqrt(2)
+			var u = (pos.Y + pos.X - 724) / 1448;
+			var v = (pos.Y - pos.X + (pos.Y > pos.X ? 724 : -724)) / 1448;
 			return new CPos(u, v);
 		}
 
@@ -868,19 +872,19 @@ namespace OpenRA
 			Bounds = Rectangle.FromLTRB(tl.U, tl.V, br.U + 1, br.V + 1);
 
 			// Directly calculate the projected map corners in world units avoiding unnecessary
-			// conversions.  This abuses the definition that the width of the cell is always
-			// 1024 units, and that the height of two rows is 2048 for classic cells and 1024
+			// conversions.  This abuses the definition that the width of the cell along the x world axis
+			// is always 1024 or 1448 units, and that the height of two rows is 2048 for classic cells and 724
 			// for isometric cells.
-			var wtop = tl.V * 1024;
-			var wbottom = (br.V + 1) * 1024;
 			if (Grid.Type == MapGridType.RectangularIsometric)
 			{
-				wtop /= 2;
-				wbottom /= 2;
+				ProjectedTopLeft = new WPos(tl.U * 1448, tl.V * 724, 0);
+				ProjectedBottomRight = new WPos(br.U * 1448 - 1, (br.V + 1) * 724 - 1, 0);
+			}
+			else
+			{
+				ProjectedTopLeft = new WPos(tl.U * 1024, tl.V * 1024, 0);
+				ProjectedBottomRight = new WPos(br.U * 1024 - 1, (br.V + 1) * 1024 - 1, 0);
 			}
-
-			ProjectedTopLeft = new WPos(tl.U * 1024, wtop, 0);
-			ProjectedBottomRight = new WPos(br.U * 1024 - 1, wbottom - 1, 0);
 
 			ProjectedCellBounds = new ProjectedCellRegion(this, tl, br);
 		}

OpenRA.Game/Map/MapCache.cs

@@ -54,12 +54,21 @@ namespace OpenRA
 					? MapClassification.Unknown : Enum<MapClassification>.Parse(kv.Value);
 
 				IReadOnlyPackage package;
-				var optional = name.StartsWith("~");
+				var optional = name.StartsWith("~", StringComparison.Ordinal);
 				if (optional)
 					name = name.Substring(1);
 
 				try
 				{
+					// HACK: If the path is inside the the support directory then we may need to create it
+					if (name.StartsWith("^", StringComparison.Ordinal))
+					{
+						// Assume that the path is a directory if there is not an existing file with the same name
+						var resolved = Platform.ResolvePath(name);
+						if (!File.Exists(resolved))
+							Directory.CreateDirectory(resolved);
+					}
+
 					package = modData.ModFiles.OpenPackage(name);
 				}
 				catch
@@ -92,7 +101,7 @@ namespace OpenRA
 					{
 						using (new Support.PerfTimer(map))
 						{
-							mapPackage = modData.ModFiles.OpenPackage(map, kv.Key);
+							mapPackage = kv.Key.OpenPackage(map, modData.ModFiles);
 							if (mapPackage == null)
 								continue;
 
@@ -113,7 +122,7 @@ namespace OpenRA
 			}
 		}
 
-		public void QueryRemoteMapDetails(IEnumerable<string> uids, Action<MapPreview> mapDetailsReceived = null, Action queryFailed = null)
+		public void QueryRemoteMapDetails(string repositoryUrl, IEnumerable<string> uids, Action<MapPreview> mapDetailsReceived = null, Action queryFailed = null)
 		{
 			var maps = uids.Distinct()
 				.Select(uid => previews[uid])
@@ -126,7 +135,7 @@ namespace OpenRA
 			foreach (var p in maps.Values)
 				p.UpdateRemoteSearch(MapStatus.Searching, null);
 
-			var url = Game.Settings.Game.MapRepository + "hash/" + string.Join(",", maps.Keys) + "/yaml";
+			var url = repositoryUrl + "hash/" + string.Join(",", maps.Keys) + "/yaml";
 
 			Action<DownloadDataCompletedEventArgs> onInfoComplete = i =>
 			{
@@ -201,7 +210,19 @@ namespace OpenRA
 				foreach (var p in todo)
 				{
 					if (p.Preview != null)
-						Game.RunAfterTick(() => p.SetMinimap(sheetBuilder.Add(p.Preview)));
+					{
+						Game.RunAfterTick(() =>
+						{
+							try
+							{
+								p.SetMinimap(sheetBuilder.Add(p.Preview));
+							}
+							catch (Exception e)
+							{
+								Log.Write("debug", "Failed to load minimap with exception: {0}", e);
+							}
+						});
+					}
 
 					// Yuck... But this helps the UI Jank when opening the map selector significantly.
 					Thread.Sleep(Environment.ProcessorCount == 1 ? 25 : 5);

OpenRA.Game/Map/MapGrid.cs

@@ -9,6 +9,7 @@
  */
 #endregion
 
+using System;
 using System.Collections.Generic;
 using System.Drawing;
 using System.IO;
@@ -91,21 +92,34 @@ namespace OpenRA
 			else if (defaultSubCellIndex < (SubCellOffsets.Length > 1 ? 1 : 0) || defaultSubCellIndex >= SubCellOffsets.Length)
 				throw new InvalidDataException("Subcell default index must be a valid index into the offset triples and must be greater than 0 for mods with subcells");
 
-			var leftDelta = Type == MapGridType.RectangularIsometric ? new WVec(-512, 0, 0) : new WVec(-512, -512, 0);
-			var topDelta = Type == MapGridType.RectangularIsometric ? new WVec(0, -512, 0) : new WVec(512, -512, 0);
-			var rightDelta = Type == MapGridType.RectangularIsometric ? new WVec(512, 0, 0) : new WVec(512, 512, 0);
-			var bottomDelta = Type == MapGridType.RectangularIsometric ? new WVec(0, 512, 0) : new WVec(-512, 512, 0);
-			CellCorners = cellCornerHalfHeights.Select(ramp => new WVec[]
-			{
-				leftDelta + new WVec(0, 0, 512 * ramp[0]),
-				topDelta + new WVec(0, 0, 512 * ramp[1]),
-				rightDelta + new WVec(0, 0, 512 * ramp[2]),
-				bottomDelta + new WVec(0, 0, 512 * ramp[3])
-			}).ToArray();
-
+			var makeCorners = Type == MapGridType.RectangularIsometric ?
+				(Func<int[], WVec[]>)IsometricCellCorners : RectangularCellCorners;
+			CellCorners = cellCornerHalfHeights.Select(makeCorners).ToArray();
 			TilesByDistance = CreateTilesByDistance();
 		}
 
+		static WVec[] IsometricCellCorners(int[] cornerHeight)
+		{
+			return new WVec[]
+			{
+				new WVec(-724, 0, 724 * cornerHeight[0]),
+				new WVec(0, -724, 724 * cornerHeight[1]),
+				new WVec(724, 0, 724 * cornerHeight[2]),
+				new WVec(0, 724, 724 * cornerHeight[3])
+			};
+		}
+
+		static WVec[] RectangularCellCorners(int[] cornerHeight)
+		{
+			return new WVec[]
+			{
+				new WVec(-512, -512, 512 * cornerHeight[0]),
+				new WVec(512, -512, 512 * cornerHeight[1]),
+				new WVec(512, 512, 512 * cornerHeight[2]),
+				new WVec(-512, 512, 512 * cornerHeight[3])
+			};
+		}
+
 		CVec[][] CreateTilesByDistance()
 		{
 			var ts = new List<CVec>[MaximumTileSearchRange + 1];

OpenRA.Game/Map/MapPreview.cs

@@ -123,8 +123,8 @@ namespace OpenRA
 		}
 
 		static readonly CPos[] NoSpawns = new CPos[] { };
-		MapCache cache;
-		ModData modData;
+		readonly MapCache cache;
+		readonly ModData modData;
 
 		public readonly string Uid;
 		public IReadOnlyPackage Package { get; private set; }
@@ -307,8 +307,9 @@ namespace OpenRA
 				var musicDefinitions = LoadRuleSection(yaml, "Music");
 				var notificationDefinitions = LoadRuleSection(yaml, "Notifications");
 				var sequenceDefinitions = LoadRuleSection(yaml, "Sequences");
+				var modelSequenceDefinitions = LoadRuleSection(yaml, "ModelSequences");
 				var rules = Ruleset.Load(modData, this, TileSet, ruleDefinitions, weaponDefinitions,
-					voiceDefinitions, notificationDefinitions, musicDefinitions, sequenceDefinitions);
+					voiceDefinitions, notificationDefinitions, musicDefinitions, sequenceDefinitions, modelSequenceDefinitions);
 				var flagged = Ruleset.DefinesUnsafeCustomRules(modData, this, ruleDefinitions,
 					weaponDefinitions, voiceDefinitions, notificationDefinitions, sequenceDefinitions);
 				return Pair.New(rules, flagged);
@@ -390,8 +391,9 @@ namespace OpenRA
 						var musicDefinitions = LoadRuleSection(rulesYaml, "Music");
 						var notificationDefinitions = LoadRuleSection(rulesYaml, "Notifications");
 						var sequenceDefinitions = LoadRuleSection(rulesYaml, "Sequences");
+						var modelSequenceDefinitions = LoadRuleSection(rulesYaml, "ModelSequences");
 						var rules = Ruleset.Load(modData, this, TileSet, ruleDefinitions, weaponDefinitions,
-							voiceDefinitions, notificationDefinitions, musicDefinitions, sequenceDefinitions);
+							voiceDefinitions, notificationDefinitions, musicDefinitions, sequenceDefinitions, modelSequenceDefinitions);
 						var flagged = Ruleset.DefinesUnsafeCustomRules(modData, this, ruleDefinitions,
 							weaponDefinitions, voiceDefinitions, notificationDefinitions, sequenceDefinitions);
 						return Pair.New(rules, flagged);
@@ -416,7 +418,7 @@ namespace OpenRA
 			innerData = newData;
 		}
 
-		public void Install(Action onSuccess)
+		public void Install(string mapRepositoryUrl, Action onSuccess)
 		{
 			if (Status != MapStatus.DownloadAvailable || !Game.Settings.Game.AllowDownloading)
 				return;
@@ -431,12 +433,11 @@ namespace OpenRA
 			}
 
 			var mapInstallPackage = installLocation.Key as IReadWritePackage;
-			var modData = Game.ModData;
 			new Thread(() =>
 			{
 				// Request the filename from the server
 				// Run in a worker thread to avoid network delays
-				var mapUrl = Game.Settings.Game.MapRepository + Uid;
+				var mapUrl = mapRepositoryUrl + Uid;
 				var mapFilename = string.Empty;
 				try
 				{
@@ -472,7 +473,7 @@ namespace OpenRA
 						Log.Write("debug", "Downloaded map to '{0}'", mapFilename);
 						Game.RunAfterTick(() =>
 						{
-							var package = modData.ModFiles.OpenPackage(mapFilename, mapInstallPackage);
+							var package = mapInstallPackage.OpenPackage(mapFilename, modData.ModFiles);
 							if (package == null)
 								innerData.Status = MapStatus.DownloadError;
 							else

OpenRA.Game/Map/TileSet.cs

@@ -84,7 +84,7 @@ namespace OpenRA
 		public readonly int[] Frames;
 		public readonly int2 Size;
 		public readonly bool PickAny;
-		public readonly string Category;
+		public readonly string[] Categories;
 		public readonly string Palette;
 
 		readonly TerrainTileInfo[] tileInfo;

OpenRA.Game/MiniYaml.cs

@@ -231,11 +231,6 @@ namespace OpenRA
 			return ret;
 		}
 
-		public static Dictionary<string, MiniYaml> DictFromFile(string path)
-		{
-			return FromFile(path).ToDictionary(x => x.Key, x => x.Value);
-		}
-
 		public static Dictionary<string, MiniYaml> DictFromStream(Stream stream, string fileName = "<no filename available>")
 		{
 			return FromStream(stream, fileName).ToDictionary(x => x.Key, x => x.Value);

OpenRA.Game/ModData.cs

@@ -13,7 +13,6 @@ using System;
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
-using System.Reflection;
 using OpenRA.FileSystem;
 using OpenRA.Graphics;
 using OpenRA.Widgets;
@@ -27,11 +26,12 @@ namespace OpenRA
 		public readonly ObjectCreator ObjectCreator;
 		public readonly WidgetLoader WidgetLoader;
 		public readonly MapCache MapCache;
+		public readonly IPackageLoader[] PackageLoaders;
 		public readonly ISoundLoader[] SoundLoaders;
 		public readonly ISpriteLoader[] SpriteLoaders;
 		public readonly ISpriteSequenceLoader SpriteSequenceLoader;
+		public readonly IModelSequenceLoader ModelSequenceLoader;
 		public ILoadScreen LoadScreen { get; private set; }
-		public VoxelLoader VoxelLoader { get; private set; }
 		public CursorProvider CursorProvider { get; private set; }
 		public FS ModFiles;
 		public IReadOnlyFileSystem DefaultFileSystem { get { return ModFiles; } }
@@ -49,13 +49,13 @@ namespace OpenRA
 		{
 			Languages = new string[0];
 
-			ModFiles = new FS(mods);
-
 			// Take a local copy of the manifest
 			Manifest = new Manifest(mod.Id, mod.Package);
-			ModFiles.LoadFromManifest(Manifest);
+			ObjectCreator = new ObjectCreator(Manifest, mods);
+			PackageLoaders = ObjectCreator.GetLoaders<IPackageLoader>(Manifest.PackageFormats, "package");
 
-			ObjectCreator = new ObjectCreator(Manifest, ModFiles);
+			ModFiles = new FS(mods, PackageLoaders);
+			ModFiles.LoadFromManifest(Manifest);
 			Manifest.LoadCustomData(ObjectCreator);
 
 			if (useLoadScreen)
@@ -68,18 +68,27 @@ namespace OpenRA
 			WidgetLoader = new WidgetLoader(this);
 			MapCache = new MapCache(this);
 
-			SoundLoaders = GetLoaders<ISoundLoader>(Manifest.SoundFormats, "sound");
-			SpriteLoaders = GetLoaders<ISpriteLoader>(Manifest.SpriteFormats, "sprite");
+			SoundLoaders = ObjectCreator.GetLoaders<ISoundLoader>(Manifest.SoundFormats, "sound");
+			SpriteLoaders = ObjectCreator.GetLoaders<ISpriteLoader>(Manifest.SpriteFormats, "sprite");
 
 			var sequenceFormat = Manifest.Get<SpriteSequenceFormat>();
 			var sequenceLoader = ObjectCreator.FindType(sequenceFormat.Type + "Loader");
-			var ctor = sequenceLoader != null ? sequenceLoader.GetConstructor(new[] { typeof(ModData) }) : null;
-			if (sequenceLoader == null || !sequenceLoader.GetInterfaces().Contains(typeof(ISpriteSequenceLoader)) || ctor == null)
+			var sequenceCtor = sequenceLoader != null ? sequenceLoader.GetConstructor(new[] { typeof(ModData) }) : null;
+			if (sequenceLoader == null || !sequenceLoader.GetInterfaces().Contains(typeof(ISpriteSequenceLoader)) || sequenceCtor == null)
 				throw new InvalidOperationException("Unable to find a sequence loader for type '{0}'.".F(sequenceFormat.Type));
 
-			SpriteSequenceLoader = (ISpriteSequenceLoader)ctor.Invoke(new[] { this });
+			SpriteSequenceLoader = (ISpriteSequenceLoader)sequenceCtor.Invoke(new[] { this });
 			SpriteSequenceLoader.OnMissingSpriteError = s => Log.Write("debug", s);
 
+			var modelFormat = Manifest.Get<ModelSequenceFormat>();
+			var modelLoader = ObjectCreator.FindType(modelFormat.Type + "Loader");
+			var modelCtor = modelLoader != null ? modelLoader.GetConstructor(new[] { typeof(ModData) }) : null;
+			if (modelLoader == null || !modelLoader.GetInterfaces().Contains(typeof(IModelSequenceLoader)) || modelCtor == null)
+				throw new InvalidOperationException("Unable to find a model loader for type '{0}'.".F(modelFormat.Type));
+
+			ModelSequenceLoader = (IModelSequenceLoader)modelCtor.Invoke(new[] { this });
+			ModelSequenceLoader.OnMissingModelError = s => Log.Write("debug", s);
+
 			defaultRules = Exts.Lazy(() => Ruleset.LoadDefaults(this));
 			defaultTileSets = Exts.Lazy(() =>
 			{
@@ -122,28 +131,9 @@ namespace OpenRA
 
 			Game.Sound.Initialize(SoundLoaders, fileSystem);
 
-			if (VoxelLoader != null)
-				VoxelLoader.Dispose();
-			VoxelLoader = new VoxelLoader(fileSystem);
-
 			CursorProvider = new CursorProvider(this);
 		}
 
-		TLoader[] GetLoaders<TLoader>(IEnumerable<string> formats, string name)
-		{
-			var loaders = new List<TLoader>();
-			foreach (var format in formats)
-			{
-				var loader = ObjectCreator.FindType(format + "Loader");
-				if (loader == null || !loader.GetInterfaces().Contains(typeof(TLoader)))
-					throw new InvalidOperationException("Unable to find a {0} loader for type '{1}'.".F(name, format));
-
-				loaders.Add((TLoader)ObjectCreator.CreateBasic(loader));
-			}
-
-			return loaders.ToArray();
-		}
-
 		public IEnumerable<string> Languages { get; private set; }
 
 		void LoadTranslations(Map map)
@@ -204,9 +194,6 @@ namespace OpenRA
 				foreach (var entry in map.Rules.Music)
 					entry.Value.Load(map);
 
-			VoxelProvider.Initialize(VoxelLoader, map, MiniYaml.Load(map, Manifest.VoxelSequences, map.VoxelSequenceDefinitions));
-			VoxelLoader.Finish();
-
 			return map;
 		}
 
@@ -215,8 +202,9 @@ namespace OpenRA
 			if (LoadScreen != null)
 				LoadScreen.Dispose();
 			MapCache.Dispose();
-			if (VoxelLoader != null)
-				VoxelLoader.Dispose();
+
+			if (ObjectCreator != null)
+				ObjectCreator.Dispose();
 		}
 	}
 

OpenRA.Game/Network/Order.cs

@@ -46,6 +46,7 @@ namespace OpenRA
 		public uint ExtraData;
 		public bool IsImmediate;
 		public bool SuppressVisualFeedback;
+		public Actor VisualFeedbackTarget;
 
 		public Player Player { get { return Subject != null ? Subject.Owner : null; } }
 

OpenRA.Game/Network/Session.cs

@@ -90,9 +90,14 @@ namespace OpenRA.Network
 			return Slots.FirstOrDefault(s => !s.Value.Closed && ClientInSlot(s.Key) == null && s.Value.AllowBots).Key;
 		}
 
-		public bool IsSinglePlayer
+		public IEnumerable<Client> NonBotClients
 		{
-			get { return Clients.Count(c => c.Bot == null) == 1; }
+			get { return Clients.Where(c => c.Bot == null); }
+		}
+
+		public IEnumerable<Client> NonBotPlayers
+		{
+			get { return Clients.Where(c => c.Bot == null && c.Slot != null); }
 		}
 
 		public enum ClientState { NotReady, Invalid, Ready, Disconnected = 1000 }

OpenRA.Game/Network/SyncReport.cs

@@ -65,6 +65,8 @@ namespace OpenRA.Network
 			report.SyncedRandom = orderManager.World.SharedRandom.Last;
 			report.TotalCount = orderManager.World.SharedRandom.TotalCount;
 			report.Traits.Clear();
+			report.Effects.Clear();
+
 			foreach (var actor in orderManager.World.ActorsHavingTrait<ISync>())
 				foreach (var syncHash in actor.SyncHashes)
 					if (syncHash.Hash != 0)

OpenRA.Game/Network/UnitOrders.cs

@@ -18,6 +18,8 @@ namespace OpenRA.Network
 {
 	static class UnitOrders
 	{
+		const string ServerChatName = "Battlefield Control";
+
 		static Player FindPlayerByClient(this World world, Session.Client c)
 		{
 			/* TODO: this is still a hack.
@@ -57,7 +59,7 @@ namespace OpenRA.Network
 					}
 
 				case "Message": // Server message
-					Game.AddChatLine(Color.White, "Server", order.TargetString);
+					Game.AddChatLine(Color.White, ServerChatName, order.TargetString);
 					break;
 
 				case "Disconnected": /* reports that the target player disconnected */
@@ -105,7 +107,7 @@ namespace OpenRA.Network
 							break;
 						}
 
-						Game.AddChatLine(Color.White, "Server", "The game has started.");
+						Game.AddChatLine(Color.White, ServerChatName, "The game has started.");
 						Game.StartGame(orderManager.LobbyInfo.GlobalSettings.Map, WorldType.Regular);
 						break;
 					}
@@ -116,10 +118,10 @@ namespace OpenRA.Network
 						if (client != null)
 						{
 							var pause = order.TargetString == "Pause";
-							if (orderManager.World.Paused != pause && world != null && !world.LobbyInfo.IsSinglePlayer)
+							if (orderManager.World.Paused != pause && world != null && world.LobbyInfo.NonBotClients.Count() > 1)
 							{
 								var pausetext = "The game is {0} by {1}".F(pause ? "paused" : "un-paused", client.Name);
-								Game.AddChatLine(Color.White, "", pausetext);
+								Game.AddChatLine(Color.White, ServerChatName, pausetext);
 							}
 
 							orderManager.World.Paused = pause;

OpenRA.Game/ObjectCreator.cs

@@ -11,13 +11,14 @@
 
 using System;
 using System.Collections.Generic;
+using System.IO;
 using System.Linq;
 using System.Reflection;
 using OpenRA.Primitives;
 
 namespace OpenRA
 {
-	public class ObjectCreator
+	public sealed class ObjectCreator : IDisposable
 	{
 		// .NET does not support unloading assemblies, so mod libraries will leak across mod changes.
 		// This tracks the assemblies that have been loaded since game start so that we don't load multiple copies
@@ -27,34 +28,30 @@ namespace OpenRA
 		readonly Cache<Type, ConstructorInfo> ctorCache;
 		readonly Pair<Assembly, string>[] assemblies;
 
-		public ObjectCreator(Assembly a)
-		{
-			typeCache = new Cache<string, Type>(FindType);
-			ctorCache = new Cache<Type, ConstructorInfo>(GetCtor);
-			assemblies = a.GetNamespaces().Select(ns => Pair.New(a, ns)).ToArray();
-		}
-
-		public ObjectCreator(Manifest manifest, FileSystem.FileSystem modFiles)
+		public ObjectCreator(Manifest manifest, InstalledMods mods)
 		{
 			typeCache = new Cache<string, Type>(FindType);
 			ctorCache = new Cache<Type, ConstructorInfo>(GetCtor);
 
 			// Allow mods to load types from the core Game assembly, and any additional assemblies they specify.
+			// Assemblies can only be loaded from directories to avoid circular dependencies on package loaders.
 			var assemblyList = new List<Assembly>() { typeof(Game).Assembly };
 			foreach (var path in manifest.Assemblies)
 			{
-				var data = modFiles.Open(path).ReadAllBytes();
+				var resolvedPath = FileSystem.FileSystem.ResolveAssemblyPath(path, manifest, mods);
+				if (resolvedPath == null)
+					throw new FileNotFoundException("Assembly `{0}` not found.".F(path));
 
 				// .NET doesn't provide any way of querying the metadata of an assembly without either:
 				//   (a) loading duplicate data into the application domain, breaking the world.
 				//   (b) crashing if the assembly has already been loaded.
 				// We can't check the internal name of the assembly, so we'll work off the data instead
-				var hash = CryptoUtil.SHA1Hash(data);
+				var hash = CryptoUtil.SHA1Hash(File.ReadAllBytes(resolvedPath));
 
 				Assembly assembly;
 				if (!ResolvedAssemblies.TryGetValue(hash, out assembly))
 				{
-					assembly = Assembly.Load(data);
+					assembly = Assembly.LoadFile(resolvedPath);
 					ResolvedAssemblies.Add(hash, assembly);
 				}
 
@@ -63,7 +60,6 @@ namespace OpenRA
 
 			AppDomain.CurrentDomain.AssemblyResolve += ResolveAssembly;
 			assemblies = assemblyList.SelectMany(asm => asm.GetNamespaces().Select(ns => Pair.New(asm, ns))).ToArray();
-			AppDomain.CurrentDomain.AssemblyResolve -= ResolveAssembly;
 		}
 
 		Assembly ResolveAssembly(object sender, ResolveEventArgs e)
@@ -72,6 +68,9 @@ namespace OpenRA
 				if (a.FullName == e.Name)
 					return a;
 
+			if (assemblies == null)
+				return null;
+
 			return assemblies.Select(a => a.First).FirstOrDefault(a => a.FullName == e.Name);
 		}
 
@@ -146,6 +145,38 @@ namespace OpenRA
 				.SelectMany(ma => ma.GetTypes());
 		}
 
+		public TLoader[] GetLoaders<TLoader>(IEnumerable<string> formats, string name)
+		{
+			var loaders = new List<TLoader>();
+			foreach (var format in formats)
+			{
+				var loader = FindType(format + "Loader");
+				if (loader == null || !loader.GetInterfaces().Contains(typeof(TLoader)))
+					throw new InvalidOperationException("Unable to find a {0} loader for type '{1}'.".F(name, format));
+
+				loaders.Add((TLoader)CreateBasic(loader));
+			}
+
+			return loaders.ToArray();
+		}
+
+		~ObjectCreator()
+		{
+			Dispose(false);
+		}
+
+		public void Dispose()
+		{
+			Dispose(true);
+			GC.SuppressFinalize(this);
+		}
+
+		void Dispose(bool disposing)
+		{
+			if (disposing)
+				AppDomain.CurrentDomain.AssemblyResolve -= ResolveAssembly;
+		}
+
 		[AttributeUsage(AttributeTargets.Constructor)]
 		public sealed class UseCtorAttribute : Attribute { }
 	}

OpenRA.Game/OpenRA.Game.csproj

@@ -16,7 +16,6 @@
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
     <IsWebBootstrapper>false</IsWebBootstrapper>
-    <ApplicationIcon>OpenRA.ico</ApplicationIcon>
     <PublishUrl>publish\</PublishUrl>
     <Install>true</Install>
     <InstallFrom>Disk</InstallFrom>
@@ -42,6 +41,8 @@
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
     <PlatformTarget>x86</PlatformTarget>
     <UseVSHostingProcess>false</UseVSHostingProcess>
+    <StartArguments>Game.Mod=ra</StartArguments>
+    <Commandlineparameters>Game.Mod=ra</Commandlineparameters>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x86'">
     <DebugSymbols>true</DebugSymbols>
@@ -53,6 +54,24 @@
     <UseVSHostingProcess>false</UseVSHostingProcess>
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
     <Optimize>true</Optimize>
+    <StartArguments>Game.Mod=ra</StartArguments>
+    <Commandlineparameters>Game.Mod=ra</Commandlineparameters>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(RunConfiguration)' == 'Default' ">
+    <StartAction>Project</StartAction>
+    <StartArguments>Game.Mod=ra</StartArguments>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(RunConfiguration)' == 'Dune 2000' ">
+    <StartAction>Project</StartAction>
+    <StartArguments>Game.Mod=d2k</StartArguments>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(RunConfiguration)' == 'Tiberian Dawn' ">
+    <StartAction>Project</StartAction>
+    <StartArguments>Game.Mod=cnc</StartArguments>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(RunConfiguration)' == 'Tiberian Sun' ">
+    <StartAction>Project</StartAction>
+    <StartArguments>Game.Mod=ts</StartArguments>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="System" />
@@ -88,11 +107,8 @@
     <Compile Include="Activities\CallFunc.cs" />
     <Compile Include="Actor.cs" />
     <Compile Include="CacheStorage.cs" />
-    <Compile Include="FileSystem\IdxEntry.cs" />
     <Compile Include="FileSystem\IPackage.cs" />
     <Compile Include="LogProxy.cs" />
-    <Compile Include="FileFormats\IdxReader.cs" />
-    <Compile Include="FileSystem\BagFile.cs" />
     <Compile Include="Map\MapGrid.cs" />
     <Compile Include="Map\MapPlayers.cs" />
     <Compile Include="MPos.cs" />
@@ -124,7 +140,6 @@
     <Compile Include="Graphics\Util.cs" />
     <Compile Include="Graphics\Viewport.cs" />
     <Compile Include="Graphics\WorldRenderer.cs" />
-    <Compile Include="Group.cs" />
     <Compile Include="IUtilityCommand.cs" />
     <Compile Include="ModData.cs" />
     <Compile Include="Network\Connection.cs" />
@@ -146,9 +161,11 @@
     <Compile Include="Player.cs" />
     <Compile Include="Primitives\MergedStream.cs" />
     <Compile Include="Primitives\PlayerDictionary.cs" />
+    <Compile Include="Primitives\ReadOnlyAdapterStream.cs" />
     <Compile Include="Primitives\SegmentStream.cs" />
     <Compile Include="Primitives\SpatiallyPartitioned.cs" />
     <Compile Include="Primitives\ConcurrentCache.cs" />
+    <Compile Include="Primitives\ZipFileHelper.cs" />
     <Compile Include="SelectableExts.cs" />
     <Compile Include="Selection.cs" />
     <Compile Include="Server\Connection.cs" />
@@ -180,11 +197,8 @@
     <Compile Include="Traits\DebugPauseState.cs" />
     <Compile Include="Network\UPnP.cs" />
     <Compile Include="Graphics\Renderable.cs" />
-    <Compile Include="Graphics\Voxel.cs" />
-    <Compile Include="Graphics\VoxelRenderer.cs" />
-    <Compile Include="Graphics\VoxelLoader.cs" />
-    <Compile Include="Graphics\VoxelProvider.cs" />
-    <Compile Include="Graphics\VoxelAnimation.cs" />
+    <Compile Include="Graphics\ModelRenderer.cs" />
+    <Compile Include="Graphics\ModelAnimation.cs" />
     <Compile Include="Traits\Player\FrozenActorLayer.cs" />
     <Compile Include="Graphics\Theater.cs" />
     <Compile Include="Traits\Player\PlayerColorPalette.cs" />
@@ -221,7 +235,6 @@
     <Compile Include="Support\PerfSample.cs" />
     <Compile Include="Graphics\SpriteRenderable.cs" />
     <Compile Include="Widgets\Widget.cs" />
-    <Compile Include="Widgets\RootWidget.cs" />
     <Compile Include="Widgets\WidgetLoader.cs" />
     <Compile Include="Widgets\ChromeMetrics.cs" />
     <Compile Include="Widgets\WidgetUtils.cs" />
@@ -237,21 +250,19 @@
     <Compile Include="Graphics\RgbaColorRenderer.cs" />
     <Compile Include="Traits\Player\IndexedPlayerPalette.cs" />
     <Compile Include="Traits\ActivityUtils.cs" />
-    <Compile Include="FileSystem\ZipFolder.cs" />
     <Compile Include="Primitives\float3.cs" />
     <Compile Include="InstalledMods.cs" />
     <Compile Include="CryptoUtil.cs" />
-    <Compile Include="Support\ConditionExpression.cs" />
+    <Compile Include="Support\VariableExpression.cs" />
     <Compile Include="ExternalMods.cs" />
+    <Compile Include="Graphics\Model.cs" />
+    <Compile Include="UtilityCommands\RegisterModCommand.cs" />
+    <Compile Include="UtilityCommands\UnregisterModCommand.cs" />
+    <Compile Include="UtilityCommands\ClearInvalidModRegistrationsCommand.cs" />
   </ItemGroup>
   <ItemGroup>
-    <Compile Include="FileSystem\D2kSoundResources.cs" />
     <Compile Include="FileSystem\Folder.cs" />
-    <Compile Include="FileSystem\InstallShieldPackage.cs" />
-    <Compile Include="FileSystem\MixFile.cs" />
-    <Compile Include="FileSystem\Pak.cs" />
     <Compile Include="FileSystem\ZipFile.cs" />
-    <Compile Include="FileSystem\BigFile.cs" />
     <Compile Include="Map\PlayerReference.cs" />
     <Compile Include="Map\TileReference.cs" />
     <Compile Include="Map\TileSet.cs" />
@@ -259,15 +270,7 @@
     <Compile Include="FieldSaver.cs" />
     <Compile Include="Manifest.cs" />
     <Compile Include="Graphics\Vertex.cs" />
-    <Compile Include="FileFormats\Blast.cs" />
-    <Compile Include="FileFormats\Blowfish.cs" />
-    <Compile Include="FileFormats\BlowfishKeyProvider.cs" />
-    <Compile Include="FileFormats\CRC32.cs" />
-    <Compile Include="FileFormats\XccGlobalDatabase.cs" />
-    <Compile Include="FileFormats\XccLocalDatabase.cs" />
-    <Compile Include="FileFormats\HvaReader.cs" />
     <Compile Include="FileFormats\PngLoader.cs" />
-    <Compile Include="FileFormats\VxlReader.cs" />
     <Compile Include="Primitives\ActionQueue.cs" />
     <Compile Include="Primitives\Bits.cs" />
     <Compile Include="Primitives\Cache.cs" />
@@ -288,7 +291,6 @@
     <Compile Include="Map\MapCache.cs" />
     <Compile Include="Map\MapPreview.cs" />
     <Compile Include="Graphics\HSLColor.cs" />
-    <Compile Include="FileSystem\PackageEntry.cs" />
     <Compile Include="CPos.cs" />
     <Compile Include="CVec.cs" />
     <Compile Include="WAngle.cs" />
@@ -333,8 +335,5 @@
       <Install>false</Install>
     </BootstrapperPackage>
   </ItemGroup>
-  <ItemGroup>
-    <Content Include="OpenRA.ico" />
-  </ItemGroup>
-  <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />  
-</Project>
+  <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
+</Project>

OpenRA.Game/Orders/GenericSelectTarget.cs

@@ -15,8 +15,8 @@ namespace OpenRA.Orders
 {
 	public class GenericSelectTarget : UnitOrderGenerator
 	{
+		public readonly string OrderName;
 		protected readonly IEnumerable<Actor> Subjects;
-		protected readonly string OrderName;
 		protected readonly string Cursor;
 		protected readonly MouseButton ExpectedButton;
 

OpenRA.Game/Orders/UnitOrderGenerator.cs

@@ -139,8 +139,15 @@ namespace OpenRA.Orders
 			if (mi.Modifiers.HasModifier(Modifiers.Alt))
 				modifiers |= TargetModifiers.ForceMove;
 
+			// The Select(x => x) is required to work around an issue on mono 5.0
+			// where calling OrderBy* on SelectManySingleSelectorIterator can in some
+			// circumstances (which we were unable to identify) replace entries in the
+			// enumeration with duplicates of other entries.
+			// Other action that replace the SelectManySingleSelectorIterator with a
+			// different enumerator type (e.g. .Where(true) or .ToList()) also work.
 			var orders = self.TraitsImplementing<IIssueOrder>()
 				.SelectMany(trait => trait.Orders.Select(x => new { Trait = trait, Order = x }))
+				.Select(x => x)
 				.OrderByDescending(x => x.Order.OrderPriority);
 
 			for (var i = 0; i < 2; i++)

OpenRA.Game/Platform.cs

@@ -22,6 +22,7 @@ namespace OpenRA
 	public static class Platform
 	{
 		public static PlatformType CurrentPlatform { get { return currentPlatform.Value; } }
+		public static readonly Guid SessionGUID = Guid.NewGuid();
 
 		static Lazy<PlatformType> currentPlatform = Exts.Lazy(GetCurrentPlatform);
 
@@ -63,14 +64,19 @@ namespace OpenRA
 			}
 		}
 
+		/// <summary>
+		/// Directory containing user-specific support files (settings, maps, replays, game data, etc).
+		/// The directory will automatically be created if it does not exist when this is queried.
+		/// </summary>
 		public static string SupportDir { get { return supportDir.Value; } }
 		static Lazy<string> supportDir = Exts.Lazy(GetSupportDir);
 
 		static string GetSupportDir()
 		{
-			// Use a local directory in the game root if it exists
-			if (Directory.Exists("Support"))
-				return "Support" + Path.DirectorySeparatorChar;
+			// Use a local directory in the game root if it exists (shared with the system support dir)
+			var localSupportDir = Path.Combine(GameDir, "Support");
+			if (Directory.Exists(localSupportDir))
+				return localSupportDir + Path.DirectorySeparatorChar;
 
 			var dir = Environment.GetFolderPath(Environment.SpecialFolder.Personal);
 
@@ -93,12 +99,51 @@ namespace OpenRA
 			return dir + Path.DirectorySeparatorChar;
 		}
 
-		public static string GameDir { get { return AppDomain.CurrentDomain.BaseDirectory; } }
+		/// <summary>
+		/// Directory containing system-wide support files (mod metadata).
+		/// This directory is not guaranteed to exist or be writable.
+		/// Consumers are expected to check the validity of the returned value, and
+		/// fall back to the user support directory if necessary.
+		/// </summary>
+		public static string SystemSupportDir { get { return systemSupportDir.Value; } }
+		static Lazy<string> systemSupportDir = Exts.Lazy(GetSystemSupportDir);
+
+		static string GetSystemSupportDir()
+		{
+			// Use a local directory in the game root if it exists (shared with the system support dir)
+			var localSupportDir = Path.Combine(GameDir, "Support");
+			if (Directory.Exists(localSupportDir))
+				return localSupportDir + Path.DirectorySeparatorChar;
+
+			switch (CurrentPlatform)
+			{
+				case PlatformType.Windows:
+					return Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.CommonApplicationData), "OpenRA") + Path.DirectorySeparatorChar;
+				case PlatformType.OSX:
+					return "/Library/Application Support/OpenRA/";
+				default:
+					return "/var/games/openra/";
+			}
+		}
+
+		public static string GameDir
+		{
+			get
+			{
+				var dir = AppDomain.CurrentDomain.BaseDirectory;
+
+				// Add trailing DirectorySeparator for some buggy AppPool hosts
+				if (!dir.EndsWith(Path.DirectorySeparatorChar.ToString(), StringComparison.Ordinal))
+					dir += Path.DirectorySeparatorChar;
+
+				return dir;
+			}
+		}
 
 		/// <summary>Replaces special character prefixes with full paths.</summary>
 		public static string ResolvePath(string path)
 		{
-			path = path.TrimEnd(new char[] { ' ', '\t' });
+			path = path.TrimEnd(' ', '\t');
 
 			// Paths starting with ^ are relative to the support dir
 			if (path.StartsWith("^", StringComparison.Ordinal))

OpenRA.Game/Player.cs

@@ -47,12 +47,13 @@ namespace OpenRA
 		public readonly bool Playable = true;
 		public readonly int ClientIndex;
 		public readonly PlayerReference PlayerReference;
+		public readonly bool IsBot;
+		public readonly string BotType;
 
 		/// <summary>The faction (including Random, etc) that was selected in the lobby.</summary>
 		public readonly FactionInfo DisplayFaction;
 
 		public WinState WinState = WinState.Undefined;
-		public bool IsBot;
 		public int SpawnPoint;
 		public bool HasObjectives = false;
 		public bool Spectating;
@@ -94,8 +95,6 @@ namespace OpenRA
 
 		public Player(World world, Session.Client client, PlayerReference pr)
 		{
-			string botType;
-
 			World = world;
 			InternalName = pr.Name;
 			PlayerReference = pr;
@@ -105,8 +104,16 @@ namespace OpenRA
 			{
 				ClientIndex = client.Index;
 				Color = client.Color;
-				PlayerName = client.Name;
-				botType = client.Bot;
+				if (client.Bot != null)
+				{
+					var botInfo = world.Map.Rules.Actors["player"].TraitInfos<IBotInfo>().First(b => b.Type == client.Bot);
+					var botsOfSameType = world.LobbyInfo.Clients.Where(c => c.Bot == client.Bot).ToArray();
+					PlayerName = botsOfSameType.Length == 1 ? botInfo.Name : "{0} {1}".F(botInfo.Name, botsOfSameType.IndexOf(client) + 1);
+				}
+				else
+					PlayerName = client.Name;
+
+				BotType = client.Bot;
 				Faction = ChooseFaction(world, client.Faction, !pr.LockFaction);
 				DisplayFaction = ChooseDisplayFaction(world, client.Faction);
 			}
@@ -119,7 +126,7 @@ namespace OpenRA
 				NonCombatant = pr.NonCombatant;
 				Playable = pr.Playable;
 				Spectating = pr.Spectating;
-				botType = pr.Bot;
+				BotType = pr.Bot;
 				Faction = ChooseFaction(world, pr.Faction, false);
 				DisplayFaction = ChooseDisplayFaction(world, pr.Faction);
 			}
@@ -130,12 +137,12 @@ namespace OpenRA
 			fogVisibilities = PlayerActor.TraitsImplementing<IFogVisibilityModifier>().ToArray();
 
 			// Enable the bot logic on the host
-			IsBot = botType != null;
+			IsBot = BotType != null;
 			if (IsBot && Game.IsHost)
 			{
-				var logic = PlayerActor.TraitsImplementing<IBot>().FirstOrDefault(b => b.Info.Name == botType);
+				var logic = PlayerActor.TraitsImplementing<IBot>().FirstOrDefault(b => b.Info.Type == BotType);
 				if (logic == null)
-					Log.Write("debug", "Invalid bot type: {0}", botType);
+					Log.Write("debug", "Invalid bot type: {0}", BotType);
 				else
 					logic.Activate(this);
 			}

OpenRA.Game/Primitives/ReadOnlyAdapterStream.cs

@@ -0,0 +1,89 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2017 The OpenRA Developers (see AUTHORS)
+ * This file is part of OpenRA, which is free software. It is made
+ * available to you under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version. For more
+ * information, see COPYING.
+ */
+#endregion
+
+using System;
+using System.Collections.Generic;
+using System.IO;
+
+namespace OpenRA.Primitives
+{
+	/// <summary>
+	/// Provides a read-only buffering layer so data can be streamed from sources where reading arbitrary amounts of
+	/// data is difficult.
+	/// </summary>
+	public abstract class ReadOnlyAdapterStream : Stream
+	{
+		readonly Queue<byte> data = new Queue<byte>(1024);
+		readonly Stream baseStream;
+
+		protected ReadOnlyAdapterStream(Stream stream)
+		{
+			if (stream == null)
+				throw new ArgumentNullException("stream");
+			if (!stream.CanRead)
+				throw new ArgumentException("stream must be readable.", "stream");
+
+			baseStream = stream;
+		}
+
+		public sealed override bool CanSeek { get { return false; } }
+		public sealed override bool CanRead { get { return true; } }
+		public sealed override bool CanWrite { get { return false; } }
+
+		public sealed override long Length { get { throw new NotSupportedException(); } }
+		public sealed override long Position
+		{
+			get { throw new NotSupportedException(); }
+			set { throw new NotSupportedException(); }
+		}
+
+		public sealed override long Seek(long offset, SeekOrigin origin) { throw new NotSupportedException(); }
+		public sealed override void SetLength(long value) { throw new NotSupportedException(); }
+		public sealed override void Write(byte[] buffer, int offset, int count) { throw new NotSupportedException(); }
+		public sealed override void Flush() { throw new NotSupportedException(); }
+
+		public sealed override int Read(byte[] buffer, int offset, int count)
+		{
+			var copied = 0;
+			ConsumeData(buffer, offset, count, ref copied);
+
+			var finished = false;
+			while (copied < count && !finished)
+			{
+				finished = BufferData(baseStream, data);
+				ConsumeData(buffer, offset, count, ref copied);
+			}
+
+			return copied;
+		}
+
+		/// <summary>
+		/// Reads data into a buffer, which will be used to satisfy <see cref="Read(byte[], int, int)"/> calls.
+		/// </summary>
+		/// <param name="baseStream">The source stream from which bytes should be read.</param>
+		/// <param name="data">The queue where bytes should be enqueued. Do not dequeue from this buffer.</param>
+		/// <returns>Return true if all data has been read; otherwise, false.</returns>
+		protected abstract bool BufferData(Stream baseStream, Queue<byte> data);
+
+		void ConsumeData(byte[] buffer, int offset, int count, ref int copied)
+		{
+			while (copied < count && data.Count > 0)
+				buffer[offset + copied++] = data.Dequeue();
+		}
+
+		protected override void Dispose(bool disposing)
+		{
+			if (disposing)
+				baseStream.Dispose();
+			base.Dispose(disposing);
+		}
+	}
+}

OpenRA.Game/Primitives/SegmentStream.cs

@@ -21,6 +21,15 @@ namespace OpenRA.Primitives
 		public readonly long BaseOffset;
 		public readonly long BaseCount;
 
+		/// <summary>
+		/// Creates a new <see cref="SegmentStream"/> that wraps a subset of the source stream. This takes ownership of
+		/// the source stream. The <see cref="SegmentStream"/> is dependent on the source and changes its underlying
+		/// position.
+		/// </summary>
+		/// <param name="stream">The source stream, of which only a segment should be exposed. Ownership is transferred
+		/// to the <see cref="SegmentStream"/>.</param>
+		/// <param name="offset">The offset at which the segment starts.</param>
+		/// <param name="count">The length of the segment.</param>
 		public SegmentStream(Stream stream, long offset, long count)
 		{
 			if (stream == null)
@@ -90,7 +99,7 @@ namespace OpenRA.Primitives
 			base.Dispose(disposing);
 		}
 
-		public static long GetOverallNestedOffset(Stream stream, out Stream overallBaseStream)
+		static long GetOverallNestedOffset(Stream stream, out Stream overallBaseStream)
 		{
 			var offset = 0L;
 			overallBaseStream = stream;
@@ -99,5 +108,34 @@ namespace OpenRA.Primitives
 				offset += segmentStream.BaseOffset + GetOverallNestedOffset(segmentStream.BaseStream, out overallBaseStream);
 			return offset;
 		}
+
+		/// <summary>
+		/// Creates a new <see cref="Stream"/> that wraps a subset of the source stream without taking ownership of it,
+		/// allowing it to be reused by the caller. The <see cref="Stream"/> is independent of the source stream and
+		/// won't affect its position.
+		/// </summary>
+		/// <param name="stream">The source stream, of which only a segment should be exposed. Ownership is retained by
+		/// the caller.</param>
+		/// <param name="offset">The offset at which the segment starts.</param>
+		/// <param name="count">The length of the segment.</param>
+		public static Stream CreateWithoutOwningStream(Stream stream, long offset, int count)
+		{
+			Stream parentStream;
+			var nestedOffset = offset + GetOverallNestedOffset(stream, out parentStream);
+
+			// Special case FileStream - instead of creating an in-memory copy,
+			// just reference the portion of the on-disk file that we need to save memory.
+			// We use GetType instead of 'is' here since we can't handle any derived classes of FileStream.
+			if (parentStream.GetType() == typeof(FileStream))
+			{
+				var path = ((FileStream)parentStream).Name;
+				return new SegmentStream(File.OpenRead(path), nestedOffset, count);
+			}
+
+			// For all other streams, create a copy in memory.
+			// This uses more memory but is the only way in general to ensure the returned streams won't clash.
+			stream.Seek(offset, SeekOrigin.Begin);
+			return new MemoryStream(stream.ReadBytes(count));
+		}
 	}
 }

OpenRA.Game/Primitives/ZipFileHelper.cs

@@ -0,0 +1,46 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2017 The OpenRA Developers (see AUTHORS)
+ * This file is part of OpenRA, which is free software. It is made
+ * available to you under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version. For more
+ * information, see COPYING.
+ */
+#endregion
+
+using System.IO;
+using System.Text;
+using ICSharpCode.SharpZipLib.Zip;
+
+namespace OpenRA.Primitives
+{
+	public static class ZipFileHelper
+	{
+		/// <summary>
+		/// Creates a <see cref="ZipFile"/> with UTF8 encoding. Avoid using <see cref="ZipFile(Stream)"/> as you
+		/// cannot be sure of the encoding that will be used.
+		/// </summary>
+		public static ZipFile Create(Stream stream)
+		{
+			// SharpZipLib uses this global as the encoding to use for all ZipFiles.
+			// The initial value is the system code page, which causes several problems.
+			// 1) On some systems, the code page for a certain encoding might not even be installed.
+			// 2) The code page is different on every system, resulting in unpredictability.
+			// 3) The code page might not work for decoding some archives.
+			// We set the default to UTF8 instead which fixes all these problems.
+			ZipConstants.DefaultCodePage = Encoding.UTF8.CodePage;
+			return new ZipFile(stream);
+		}
+
+		/// <summary>
+		/// Creates a <see cref="ZipFile"/> with UTF8 encoding. Avoid using <see cref="ZipFile(FileStream)"/> as you
+		/// cannot be sure of the encoding that will be used.
+		/// </summary>
+		public static ZipFile Create(FileStream stream)
+		{
+			ZipConstants.DefaultCodePage = Encoding.UTF8.CodePage;
+			return new ZipFile(stream);
+		}
+	}
+}

OpenRA.Game/Renderer.cs

@@ -23,7 +23,7 @@ namespace OpenRA
 		public SpriteRenderer WorldSpriteRenderer { get; private set; }
 		public SpriteRenderer WorldRgbaSpriteRenderer { get; private set; }
 		public RgbaColorRenderer WorldRgbaColorRenderer { get; private set; }
-		public VoxelRenderer WorldVoxelRenderer { get; private set; }
+		public ModelRenderer WorldModelRenderer { get; private set; }
 		public RgbaColorRenderer RgbaColorRenderer { get; private set; }
 		public SpriteRenderer RgbaSpriteRenderer { get; private set; }
 		public SpriteRenderer SpriteRenderer { get; private set; }
@@ -59,7 +59,7 @@ namespace OpenRA
 			WorldSpriteRenderer = new SpriteRenderer(this, Device.CreateShader("shp"));
 			WorldRgbaSpriteRenderer = new SpriteRenderer(this, Device.CreateShader("rgba"));
 			WorldRgbaColorRenderer = new RgbaColorRenderer(this, Device.CreateShader("color"));
-			WorldVoxelRenderer = new VoxelRenderer(this, Device.CreateShader("vxl"));
+			WorldModelRenderer = new ModelRenderer(this, Device.CreateShader("model"));
 			RgbaColorRenderer = new RgbaColorRenderer(this, Device.CreateShader("color"));
 			RgbaSpriteRenderer = new SpriteRenderer(this, Device.CreateShader("rgba"));
 			SpriteRenderer = new SpriteRenderer(this, Device.CreateShader("shp"));
@@ -136,7 +136,7 @@ namespace OpenRA
 				lastZoom = zoom;
 				WorldRgbaSpriteRenderer.SetViewportParams(Resolution, depthScale, depthOffset, zoom, scroll);
 				WorldSpriteRenderer.SetViewportParams(Resolution, depthScale, depthOffset, zoom, scroll);
-				WorldVoxelRenderer.SetViewportParams(Resolution, zoom, scroll);
+				WorldModelRenderer.SetViewportParams(Resolution, zoom, scroll);
 				WorldRgbaColorRenderer.SetViewportParams(Resolution, depthScale, depthOffset, zoom, scroll);
 			}
 		}
@@ -153,7 +153,7 @@ namespace OpenRA
 			SpriteRenderer.SetPalette(currentPaletteTexture);
 			WorldSpriteRenderer.SetPalette(currentPaletteTexture);
 			WorldRgbaSpriteRenderer.SetPalette(currentPaletteTexture);
-			WorldVoxelRenderer.SetPalette(currentPaletteTexture);
+			WorldModelRenderer.SetPalette(currentPaletteTexture);
 		}
 
 		public void EndFrame(IInputHandler inputHandler)
@@ -267,7 +267,7 @@ namespace OpenRA
 		public void Dispose()
 		{
 			Device.Dispose();
-			WorldVoxelRenderer.Dispose();
+			WorldModelRenderer.Dispose();
 			tempBuffer.Dispose();
 			if (fontSheetBuilder != null)
 				fontSheetBuilder.Dispose();

OpenRA.Game/Selection.cs

@@ -19,10 +19,23 @@ namespace OpenRA
 {
 	public class Selection
 	{
+		public int Hash { get; private set; }
+		public IEnumerable<Actor> Actors { get { return actors; } }
 		readonly HashSet<Actor> actors = new HashSet<Actor>();
+
+		void UpdateHash()
+		{
+			// Not a real hash, but things checking this only care about checking when the selection has changed
+			// For this purpose, having a false positive (forcing a refresh when nothing changed) is much better
+			// than a false negative (selection state mismatch)
+			Hash += 1;
+		}
+
 		public void Add(World w, Actor a)
 		{
 			actors.Add(a);
+			UpdateHash();
+
 			foreach (var sel in a.TraitsImplementing<INotifySelected>())
 				sel.Selected(a);
 			foreach (var ns in w.WorldActor.TraitsImplementing<INotifySelection>())
@@ -58,6 +71,8 @@ namespace OpenRA
 				}
 			}
 
+			UpdateHash();
+
 			foreach (var a in newSelection)
 				foreach (var sel in a.TraitsImplementing<INotifySelected>())
 					sel.Selected(a);
@@ -85,12 +100,17 @@ namespace OpenRA
 			}
 		}
 
-		public IEnumerable<Actor> Actors { get { return actors; } }
-		public void Clear() { actors.Clear(); }
+		public void Clear()
+		{
+			actors.Clear();
+			UpdateHash();
+		}
 
 		public void Tick(World world)
 		{
-			actors.RemoveWhere(a => !a.IsInWorld || (!a.Owner.IsAlliedWith(world.RenderPlayer) && world.FogObscures(a)));
+			var removed = actors.RemoveWhere(a => !a.IsInWorld || (!a.Owner.IsAlliedWith(world.RenderPlayer) && world.FogObscures(a)));
+			if (removed > 0)
+				UpdateHash();
 
 			foreach (var cg in controlGroups.Values)
 			{

OpenRA.Game/Server/Server.cs

@@ -306,7 +306,7 @@ namespace OpenRA.Server
 					IpAddress = ((IPEndPoint)newConn.Socket.RemoteEndPoint).Address.ToString(),
 					Index = newConn.PlayerIndex,
 					Slot = LobbyInfo.FirstEmptySlot(),
-					PreferredColor = handshake.Client.Color,
+					PreferredColor = handshake.Client.PreferredColor,
 					Color = handshake.Client.Color,
 					Faction = "Random",
 					SpawnPoint = 0,
@@ -375,7 +375,7 @@ namespace OpenRA.Server
 				Log.Write("server", "{0} ({1}) has joined the game.",
 					client.Name, newConn.Socket.RemoteEndPoint);
 
-				if (Dedicated || !LobbyInfo.IsSinglePlayer)
+				if (LobbyInfo.NonBotClients.Count() > 1)
 					SendMessage("{0} has joined the game.".F(client.Name));
 
 				// Send initial ping
@@ -392,7 +392,7 @@ namespace OpenRA.Server
 						SendOrderTo(newConn, "Message", motd);
 				}
 
-				if (!LobbyInfo.IsSinglePlayer && Map.DefinesUnsafeCustomRules)
+				if (Map.DefinesUnsafeCustomRules)
 					SendOrderTo(newConn, "Message", "This map contains custom rules. Game experience may change.");
 
 				if (!LobbyInfo.GlobalSettings.EnableSingleplayer)
@@ -679,7 +679,7 @@ namespace OpenRA.Server
 			}
 
 			// HACK: Turn down the latency if there is only one real player
-			if (LobbyInfo.IsSinglePlayer)
+			if (LobbyInfo.NonBotClients.Count() == 1)
 				LobbyInfo.GlobalSettings.OrderLatency = 1;
 
 			SyncLobbyInfo();

OpenRA.Game/Settings.cs

@@ -51,8 +51,6 @@ namespace OpenRA
 		[Desc("Locks the game with a password.")]
 		public string Password = "";
 
-		public string MasterServer = "http://master.openra.net/";
-
 		[Desc("Allow users to enable NAT discovery for external IP detection and automatic port forwarding.")]
 		public bool DiscoverNatDevices = false;
 
@@ -120,6 +118,9 @@ namespace OpenRA
 		[Desc("At which frames per second to cap the framerate.")]
 		public int MaxFramerate = 60;
 
+		[Desc("Disable high resolution DPI scaling on Windows operating systems.")]
+		public bool DisableWindowsDPIScaling = true;
+
 		public int BatchSize = 8192;
 		public int SheetSize = 2048;
 
@@ -153,13 +154,11 @@ namespace OpenRA
 
 	public class GameSettings
 	{
-		[Desc("Load a specific mod on startup.")]
-		public string Mod = null;
-		public string PreviousMod = "ra";
-
 		public string Platform = "Default";
 
 		public bool ViewportEdgeScroll = true;
+		public int ViewportEdgeScrollMargin = 5;
+
 		public bool LockMouseWindow = false;
 		public MouseScrollType MiddleMouseScroll = MouseScrollType.Standard;
 		public MouseScrollType RightMouseScroll = MouseScrollType.Disabled;
@@ -175,13 +174,11 @@ namespace OpenRA
 		public bool DrawTargetLine = true;
 
 		public bool AllowDownloading = true;
-		public string MapRepository = "http://resource.openra.net/map/";
 
 		public bool AllowZoom = true;
 		public Modifiers ZoomModifier = Modifiers.Ctrl;
 
 		public bool FetchNews = true;
-		public string NewsUrl = "http://master.openra.net/gamenews";
 
 		public MPGameFilters MPGameFilters = MPGameFilters.Waiting | MPGameFilters.Empty | MPGameFilters.Protected | MPGameFilters.Started;
 	}
@@ -228,7 +225,10 @@ namespace OpenRA
 		public Hotkey StopKey = new Hotkey(Keycode.S, Modifiers.None);
 		public Hotkey ScatterKey = new Hotkey(Keycode.X, Modifiers.Ctrl);
 		public Hotkey DeployKey = new Hotkey(Keycode.F, Modifiers.None);
-		public Hotkey StanceCycleKey = new Hotkey(Keycode.Z, Modifiers.Ctrl);
+		public Hotkey StanceHoldFireKey = new Hotkey(Keycode.F, Modifiers.Alt);
+		public Hotkey StanceReturnFireKey = new Hotkey(Keycode.D, Modifiers.Alt);
+		public Hotkey StanceDefendKey = new Hotkey(Keycode.S, Modifiers.Alt);
+		public Hotkey StanceAttackAnythingKey = new Hotkey(Keycode.A, Modifiers.Alt);
 		public Hotkey GuardKey = new Hotkey(Keycode.D, Modifiers.None);
 
 		public Hotkey ObserverCombinedView = new Hotkey(Keycode.MINUS, Modifiers.None);
@@ -330,7 +330,6 @@ namespace OpenRA
 		public string Hostname = "irc.openra.net";
 		public int Port = 6667;
 		public string Channel = "lobby";
-		public string Nickname = "Newbie";
 		public string QuitMessage = "Battle control terminated!";
 		public string TimestampFormat = "HH:mm";
 		public bool ConnectAutomatically = false;
@@ -338,18 +337,23 @@ namespace OpenRA
 
 	public class Settings
 	{
-		string settingsFile;
+		readonly string settingsFile;
 
-		public PlayerSettings Player = new PlayerSettings();
-		public GameSettings Game = new GameSettings();
-		public SoundSettings Sound = new SoundSettings();
-		public GraphicSettings Graphics = new GraphicSettings();
-		public ServerSettings Server = new ServerSettings();
-		public DebugSettings Debug = new DebugSettings();
-		public KeySettings Keys = new KeySettings();
-		public ChatSettings Chat = new ChatSettings();
+		public readonly PlayerSettings Player = new PlayerSettings();
+		public readonly GameSettings Game = new GameSettings();
+		public readonly SoundSettings Sound = new SoundSettings();
+		public readonly GraphicSettings Graphics = new GraphicSettings();
+		public readonly ServerSettings Server = new ServerSettings();
+		public readonly DebugSettings Debug = new DebugSettings();
+		public readonly KeySettings Keys = new KeySettings();
+		public readonly ChatSettings Chat = new ChatSettings();
 
-		public Dictionary<string, object> Sections;
+		public readonly Dictionary<string, object> Sections;
+
+		// A direct clone of the file loaded from disk.
+		// Any changed settings will be merged over this on save,
+		// allowing us to persist any unknown configuration keys
+		readonly List<MiniYamlNode> yamlCache = new List<MiniYamlNode>();
 
 		public Settings(string file, Arguments args)
 		{
@@ -375,11 +379,13 @@ namespace OpenRA
 
 				if (File.Exists(settingsFile))
 				{
-					var yaml = MiniYaml.DictFromFile(settingsFile);
-
-					foreach (var kv in Sections)
-						if (yaml.ContainsKey(kv.Key))
-							LoadSectionYaml(yaml[kv.Key], kv.Value);
+					yamlCache = MiniYaml.FromFile(settingsFile);
+					foreach (var yamlSection in yamlCache)
+					{
+						object settingsSection;
+						if (Sections.TryGetValue(yamlSection.Key, out settingsSection))
+							LoadSectionYaml(yamlSection.Value, settingsSection);
+					}
 				}
 
 				// Override with commandline args
@@ -397,11 +403,39 @@ namespace OpenRA
 
 		public void Save()
 		{
-			var root = new List<MiniYamlNode>();
 			foreach (var kv in Sections)
-				root.Add(new MiniYamlNode(kv.Key, FieldSaver.SaveDifferences(kv.Value, Activator.CreateInstance(kv.Value.GetType()))));
+			{
+				var sectionYaml = yamlCache.FirstOrDefault(x => x.Key == kv.Key);
+				if (sectionYaml == null)
+				{
+					sectionYaml = new MiniYamlNode(kv.Key, new MiniYaml(""));
+					yamlCache.Add(sectionYaml);
+				}
 
-			root.WriteToFile(settingsFile);
+				var defaultValues = Activator.CreateInstance(kv.Value.GetType());
+				var fields = FieldLoader.GetTypeLoadInfo(kv.Value.GetType());
+				foreach (var fli in fields)
+				{
+					var serialized = FieldSaver.FormatValue(kv.Value, fli.Field);
+					var defaultSerialized = FieldSaver.FormatValue(defaultValues, fli.Field);
+
+					// Fields with their default value are not saved in the settings yaml
+					// Make sure that we erase any previously defined custom values
+					if (serialized == defaultSerialized)
+						sectionYaml.Value.Nodes.RemoveAll(n => n.Key == fli.YamlName);
+					else
+					{
+						// Update or add the custom value
+						var fieldYaml = sectionYaml.Value.Nodes.FirstOrDefault(n => n.Key == fli.YamlName);
+						if (fieldYaml != null)
+							fieldYaml.Value.Value = serialized;
+						else
+							sectionYaml.Value.Nodes.Add(new MiniYamlNode(fli.YamlName, new MiniYaml(serialized)));
+					}
+				}
+			}
+
+			yamlCache.WriteToFile(settingsFile);
 		}
 
 		static string SanitizedName(string dirty)

OpenRA.Game/Sound/Sound.cs

@@ -37,6 +37,8 @@ namespace OpenRA
 	public sealed class Sound : IDisposable
 	{
 		readonly ISoundEngine soundEngine;
+		ISoundLoader[] loaders;
+		IReadOnlyFileSystem fileSystem;
 		Cache<string, ISoundSource> sounds;
 		ISoundSource rawSource;
 		ISound music;
@@ -52,12 +54,12 @@ namespace OpenRA
 				MuteAudio();
 		}
 
-		ISoundSource LoadSound(ISoundLoader[] loaders, IReadOnlyFileSystem fileSystem, string filename)
+		T LoadSound<T>(string filename, Func<ISoundFormat, T> loadFormat)
 		{
 			if (!fileSystem.Exists(filename))
 			{
 				Log.Write("sound", "LoadSound, file does not exist: {0}", filename);
-				return null;
+				return default(T);
 			}
 
 			using (var stream = fileSystem.Open(filename))
@@ -68,8 +70,7 @@ namespace OpenRA
 					stream.Position = 0;
 					if (loader.TryParseSound(stream, out soundFormat))
 					{
-						var source = soundEngine.AddSoundSourceFromMemory(
-							soundFormat.GetPCMInputStream().ReadAllBytes(), soundFormat.Channels, soundFormat.SampleBits, soundFormat.SampleRate);
+						var source = loadFormat(soundFormat);
 						soundFormat.Dispose();
 						return source;
 					}
@@ -81,10 +82,20 @@ namespace OpenRA
 
 		public void Initialize(ISoundLoader[] loaders, IReadOnlyFileSystem fileSystem)
 		{
-			sounds = new Cache<string, ISoundSource>(s => LoadSound(loaders, fileSystem, s));
+			StopMusic();
+			soundEngine.StopAllSounds();
+
+			if (sounds != null)
+				foreach (var soundSource in sounds.Values)
+					if (soundSource != null)
+						soundSource.Dispose();
+
+			this.loaders = loaders;
+			this.fileSystem = fileSystem;
+			Func<ISoundFormat, ISoundSource> loadIntoMemory = soundFormat => soundEngine.AddSoundSourceFromMemory(
+				soundFormat.GetPCMInputStream().ReadAllBytes(), soundFormat.Channels, soundFormat.SampleBits, soundFormat.SampleRate);
+			sounds = new Cache<string, ISoundSource>(filename => LoadSound(filename, loadIntoMemory));
 			currentSounds = new Dictionary<uint, ISound>();
-			music = null;
-			currentMusic = null;
 			video = null;
 		}
 
@@ -163,7 +174,7 @@ namespace OpenRA
 		public void Tick()
 		{
 			// Song finished
-			if (MusicPlaying && !music.Playing)
+			if (MusicPlaying && music.Complete)
 			{
 				StopMusic();
 				onMusicComplete();
@@ -195,11 +206,17 @@ namespace OpenRA
 
 			StopMusic();
 
-			var sound = sounds[m.Filename];
-			if (sound == null)
-				return;
+			Func<ISoundFormat, ISound> stream = soundFormat => soundEngine.Play2DStream(
+				soundFormat.GetPCMInputStream(), soundFormat.Channels, soundFormat.SampleBits, soundFormat.SampleRate,
+				false, true, WPos.Zero, MusicVolume);
+			music = LoadSound(m.Filename, stream);
+
+			if (music == null)
+			{
+				onMusicComplete = null;
+				return;
+			}
 
-			music = soundEngine.Play2D(sound, false, true, WPos.Zero, MusicVolume, false);
 			currentMusic = m;
 			MusicPlaying = true;
 		}
@@ -222,10 +239,13 @@ namespace OpenRA
 		public void StopMusic()
 		{
 			if (music != null)
+			{
 				soundEngine.StopSound(music);
+				music = null;
+			}
 
-			MusicPlaying = false;
 			currentMusic = null;
+			MusicPlaying = false;
 		}
 
 		public void PauseMusic()
@@ -388,6 +408,11 @@ namespace OpenRA
 
 		public void Dispose()
 		{
+			StopAudio();
+			if (sounds != null)
+				foreach (var soundSource in sounds.Values)
+					if (soundSource != null)
+						soundSource.Dispose();
 			soundEngine.Dispose();
 		}
 	}

OpenRA.Game/Sound/SoundDevice.cs

@@ -10,6 +10,7 @@
 #endregion
 
 using System;
+using System.IO;
 
 namespace OpenRA
 {
@@ -18,6 +19,7 @@ namespace OpenRA
 		SoundDevice[] AvailableDevices();
 		ISoundSource AddSoundSourceFromMemory(byte[] data, int channels, int sampleBits, int sampleRate);
 		ISound Play2D(ISoundSource sound, bool loop, bool relative, WPos pos, float volume, bool attenuateVolume);
+		ISound Play2DStream(Stream stream, int channels, int sampleBits, int sampleRate, bool loop, bool relative, WPos pos, float volume);
 		float Volume { get; set; }
 		void PauseSound(ISound sound, bool paused);
 		void StopSound(ISound sound);
@@ -39,13 +41,13 @@ namespace OpenRA
 		}
 	}
 
-	public interface ISoundSource { }
+	public interface ISoundSource : IDisposable { }
 
 	public interface ISound
 	{
 		float Volume { get; set; }
 		float SeekPosition { get; }
-		bool Playing { get; }
+		bool Complete { get; }
 		void SetPosition(WPos pos);
 	}
 }

OpenRA.Game/StreamExts.cs

@@ -12,6 +12,7 @@
 using System;
 using System.Collections.Generic;
 using System.IO;
+using System.Linq;
 using System.Text;
 
 namespace OpenRA
@@ -117,7 +118,17 @@ namespace OpenRA
 		public static byte[] ReadAllBytes(this Stream s)
 		{
 			using (s)
-				return s.ReadBytes((int)(s.Length - s.Position));
+			{
+				if (s.CanSeek)
+					return s.ReadBytes((int)(s.Length - s.Position));
+
+				var bytes = new List<byte>();
+				var buffer = new byte[1024];
+				int count;
+				while ((count = s.Read(buffer, 0, buffer.Length)) > 0)
+					bytes.AddRange(buffer.Take(count));
+				return bytes.ToArray();
+			}
 		}
 
 		public static void Write(this Stream s, byte[] data)

OpenRA.Game/Support/LaunchArguments.cs

@@ -43,7 +43,7 @@ namespace OpenRA
 				connect = Connect;
 
 			if (!string.IsNullOrEmpty(URI))
-				connect = URI.Replace("openra://", "").TrimEnd('/');
+				connect = URI.Substring(URI.IndexOf("://", System.StringComparison.Ordinal) + 3).TrimEnd('/');
 
 			return connect;
 		}

OpenRA.Game/Support/Program.cs

@@ -51,10 +51,13 @@ namespace OpenRA
 			var exceptionName = "exception-" + DateTime.UtcNow.ToString("yyyy-MM-ddTHHmmssZ", CultureInfo.InvariantCulture) + ".log";
 			Log.AddChannel("exception", exceptionName);
 
+			if (Game.EngineVersion != null)
+				Log.Write("exception", "OpenRA engine version {0}", Game.EngineVersion);
+
 			if (Game.ModData != null)
 			{
 				var mod = Game.ModData.Manifest.Metadata;
-				Log.Write("exception", "{0} Mod at Version {1}", mod.Title, mod.Version);
+				Log.Write("exception", "{0} mod version {1}", mod.Title, mod.Version);
 			}
 
 			if (Game.OrderManager != null && Game.OrderManager.World != null && Game.OrderManager.World.Map != null)

OpenRA.Game/Support/VariableExpression.cs

@@ -18,14 +18,12 @@ using Expressions = System.Linq.Expressions;
 
 namespace OpenRA.Support
 {
-	public class ConditionExpression
+	public abstract class VariableExpression
 	{
 		public readonly string Expression;
 		readonly HashSet<string> variables = new HashSet<string>();
 		public IEnumerable<string> Variables { get { return variables; } }
 
-		readonly Func<IReadOnlyDictionary<string, int>, int> asFunction;
-
 		enum CharClass { Whitespace, Operator, Mixed, Id, Digit }
 
 		static CharClass CharClassOf(char c)
@@ -92,7 +90,7 @@ namespace OpenRA.Support
 		enum Associativity { Left, Right }
 
 		[Flags]
-		enum OperandSides
+		enum Sides
 		{
 			// Value type
 			None = 0,
@@ -161,18 +159,34 @@ namespace OpenRA.Support
 		{
 			public readonly string Symbol;
 			public readonly Precedence Precedence;
-			public readonly OperandSides OperandSides;
+			public readonly Sides OperandSides;
+			public readonly Sides WhitespaceSides;
 			public readonly Associativity Associativity;
 			public readonly Grouping Opens;
 			public readonly Grouping Closes;
 
-			public TokenTypeInfo(string symbol, Precedence precedence, OperandSides operandSides = OperandSides.None,
+			public TokenTypeInfo(string symbol, Precedence precedence, Sides operandSides = Sides.None,
 			                     Associativity associativity = Associativity.Left,
 			                     Grouping opens = Grouping.None, Grouping closes = Grouping.None)
 			{
 				Symbol = symbol;
 				Precedence = precedence;
 				OperandSides = operandSides;
+				WhitespaceSides = Sides.None;
+				Associativity = associativity;
+				Opens = opens;
+				Closes = closes;
+			}
+
+			public TokenTypeInfo(string symbol, Precedence precedence, Sides operandSides,
+			                     Sides whitespaceSides,
+			                     Associativity associativity = Associativity.Left,
+			                     Grouping opens = Grouping.None, Grouping closes = Grouping.None)
+			{
+				Symbol = symbol;
+				Precedence = precedence;
+				OperandSides = operandSides;
+				WhitespaceSides = whitespaceSides;
 				Associativity = associativity;
 				Opens = opens;
 				Closes = closes;
@@ -183,10 +197,11 @@ namespace OpenRA.Support
 			{
 				Symbol = symbol;
 				Precedence = precedence;
+				WhitespaceSides = Sides.None;
 				OperandSides = opens == Grouping.None ?
-				                                (closes == Grouping.None ? OperandSides.None : OperandSides.Left)
+				                                (closes == Grouping.None ? Sides.None : Sides.Left)
 				                                :
-				                                (closes == Grouping.None ? OperandSides.Right : OperandSides.Both);
+				                                (closes == Grouping.None ? Sides.Right : Sides.Both);
 				Associativity = associativity;
 				Opens = opens;
 				Closes = closes;
@@ -221,52 +236,52 @@ namespace OpenRA.Support
 						yield return new TokenTypeInfo(")", Precedence.Parens, Grouping.None, Grouping.Parens);
 						continue;
 					case TokenType.Not:
-						yield return new TokenTypeInfo("!", Precedence.Unary, OperandSides.Right, Associativity.Right);
+						yield return new TokenTypeInfo("!", Precedence.Unary, Sides.Right, Associativity.Right);
 						continue;
 					case TokenType.OnesComplement:
-						yield return new TokenTypeInfo("~", Precedence.Unary, OperandSides.Right, Associativity.Right);
+						yield return new TokenTypeInfo("~", Precedence.Unary, Sides.Right, Associativity.Right);
 						continue;
 					case TokenType.Negate:
-						yield return new TokenTypeInfo("-", Precedence.Unary, OperandSides.Right, Associativity.Right);
+						yield return new TokenTypeInfo("-", Precedence.Unary, Sides.Right, Associativity.Right);
 						continue;
 					case TokenType.And:
-						yield return new TokenTypeInfo("&&", Precedence.And, OperandSides.Both);
+						yield return new TokenTypeInfo("&&", Precedence.And, Sides.Both, Sides.Both);
 						continue;
 					case TokenType.Or:
-						yield return new TokenTypeInfo("||", Precedence.Or, OperandSides.Both);
+						yield return new TokenTypeInfo("||", Precedence.Or, Sides.Both, Sides.Both);
 						continue;
 					case TokenType.Equals:
-						yield return new TokenTypeInfo("==", Precedence.Equality, OperandSides.Both);
+						yield return new TokenTypeInfo("==", Precedence.Equality, Sides.Both, Sides.Both);
 						continue;
 					case TokenType.NotEquals:
-						yield return new TokenTypeInfo("!=", Precedence.Equality, OperandSides.Both);
+						yield return new TokenTypeInfo("!=", Precedence.Equality, Sides.Both, Sides.Both);
 						continue;
 					case TokenType.LessThan:
-						yield return new TokenTypeInfo("<", Precedence.Relation, OperandSides.Both);
+						yield return new TokenTypeInfo("<", Precedence.Relation, Sides.Both, Sides.Both);
 						continue;
 					case TokenType.LessThanOrEqual:
-						yield return new TokenTypeInfo("<=", Precedence.Relation, OperandSides.Both);
+						yield return new TokenTypeInfo("<=", Precedence.Relation, Sides.Both, Sides.Both);
 						continue;
 					case TokenType.GreaterThan:
-						yield return new TokenTypeInfo(">", Precedence.Relation, OperandSides.Both);
+						yield return new TokenTypeInfo(">", Precedence.Relation, Sides.Both, Sides.Both);
 						continue;
 					case TokenType.GreaterThanOrEqual:
-						yield return new TokenTypeInfo(">=", Precedence.Relation, OperandSides.Both);
+						yield return new TokenTypeInfo(">=", Precedence.Relation, Sides.Both, Sides.Both);
 						continue;
 					case TokenType.Add:
-						yield return new TokenTypeInfo("+", Precedence.Addition, OperandSides.Both);
+						yield return new TokenTypeInfo("+", Precedence.Addition, Sides.Both, Sides.Both);
 						continue;
 					case TokenType.Subtract:
-						yield return new TokenTypeInfo("-", Precedence.Addition, OperandSides.Both);
+						yield return new TokenTypeInfo("-", Precedence.Addition, Sides.Both, Sides.Both);
 						continue;
 					case TokenType.Multiply:
-						yield return new TokenTypeInfo("*", Precedence.Multiplication, OperandSides.Both);
+						yield return new TokenTypeInfo("*", Precedence.Multiplication, Sides.Both, Sides.Both);
 						continue;
 					case TokenType.Divide:
-						yield return new TokenTypeInfo("/", Precedence.Multiplication, OperandSides.Both);
+						yield return new TokenTypeInfo("/", Precedence.Multiplication, Sides.Both, Sides.Both);
 						continue;
 					case TokenType.Modulo:
-						yield return new TokenTypeInfo("%", Precedence.Multiplication, OperandSides.Both);
+						yield return new TokenTypeInfo("%", Precedence.Multiplication, Sides.Both, Sides.Both);
 						continue;
 				}
 
@@ -279,7 +294,7 @@ namespace OpenRA.Support
 
 		static bool HasRightOperand(TokenType type)
 		{
-			return ((int)TokenTypeInfos[(int)type].OperandSides & (int)OperandSides.Right) != 0;
+			return ((int)TokenTypeInfos[(int)type].OperandSides & (int)Sides.Right) != 0;
 		}
 
 		static bool IsLeftOperandOrNone(TokenType type)
@@ -287,6 +302,21 @@ namespace OpenRA.Support
 			return type == TokenType.Invalid || HasRightOperand(type);
 		}
 
+		static bool RequiresWhitespaceAfter(TokenType type)
+		{
+			return ((int)TokenTypeInfos[(int)type].WhitespaceSides & (int)Sides.Right) != 0;
+		}
+
+		static bool RequiresWhitespaceBefore(TokenType type)
+		{
+			return ((int)TokenTypeInfos[(int)type].WhitespaceSides & (int)Sides.Left) != 0;
+		}
+
+		static string GetTokenSymbol(TokenType type)
+		{
+			return TokenTypeInfos[(int)type].Symbol;
+		}
+
 		class Token
 		{
 			public readonly TokenType Type;
@@ -295,10 +325,10 @@ namespace OpenRA.Support
 			public virtual string Symbol { get { return TokenTypeInfos[(int)Type].Symbol; } }
 
 			public int Precedence { get { return (int)TokenTypeInfos[(int)Type].Precedence; } }
-			public OperandSides OperandSides { get { return TokenTypeInfos[(int)Type].OperandSides; } }
+			public Sides OperandSides { get { return TokenTypeInfos[(int)Type].OperandSides; } }
 			public Associativity Associativity { get { return TokenTypeInfos[(int)Type].Associativity; } }
-			public bool LeftOperand { get { return ((int)TokenTypeInfos[(int)Type].OperandSides & (int)OperandSides.Left) != 0; } }
-			public bool RightOperand { get { return ((int)TokenTypeInfos[(int)Type].OperandSides & (int)OperandSides.Right) != 0; } }
+			public bool LeftOperand { get { return ((int)TokenTypeInfos[(int)Type].OperandSides & (int)Sides.Left) != 0; } }
+			public bool RightOperand { get { return ((int)TokenTypeInfos[(int)Type].OperandSides & (int)Sides.Right) != 0; } }
 
 			public Grouping Opens { get { return TokenTypeInfos[(int)Type].Opens; } }
 			public Grouping Closes { get { return TokenTypeInfos[(int)Type].Closes; } }
@@ -322,7 +352,7 @@ namespace OpenRA.Support
 						cc = CharClassOf(expression[i]);
 						if (cc != CharClass.Digit)
 						{
-							if (cc != CharClass.Whitespace && cc != CharClass.Operator)
+							if (cc != CharClass.Whitespace && cc != CharClass.Operator && cc != CharClass.Mixed)
 								throw new InvalidDataException("Number {0} and variable merged at index {1}".F(
 									int.Parse(expression.Substring(start, i - start)), start));
 
@@ -336,6 +366,15 @@ namespace OpenRA.Support
 				return false;
 			}
 
+			static TokenType VariableOrKeyword(string expression, int start, ref int i)
+			{
+				if (CharClassOf(expression[i - 1]) == CharClass.Mixed)
+					throw new InvalidDataException("Invalid identifier end character at index {0} for `{1}`".F(
+						i - 1, expression.Substring(start, i - start)));
+
+				return VariableOrKeyword(expression, start, i - start);
+			}
+
 			static TokenType VariableOrKeyword(string expression, int start, int length)
 			{
 				var i = start;
@@ -466,10 +505,10 @@ namespace OpenRA.Support
 				{
 					cc = CharClassOf(expression[i]);
 					if (cc == CharClass.Whitespace || cc == CharClass.Operator)
-						return VariableOrKeyword(expression, start, i - start);
+						return VariableOrKeyword(expression, start, ref i);
 				}
 
-				return VariableOrKeyword(expression, start, i - start);
+				return VariableOrKeyword(expression, start, ref i);
 			}
 
 			public static Token GetNext(string expression, ref int i, TokenType lastType = TokenType.Invalid)
@@ -477,16 +516,30 @@ namespace OpenRA.Support
 				if (i == expression.Length)
 					return null;
 
-				// Ignore whitespace
-				while (CharClassOf(expression[i]) == CharClass.Whitespace)
+				// Check and eat whitespace
+				var whitespaceBefore = false;
+				if (CharClassOf(expression[i]) == CharClass.Whitespace)
 				{
-					if (++i == expression.Length)
-						return null;
+					whitespaceBefore = true;
+					while (CharClassOf(expression[i]) == CharClass.Whitespace)
+					{
+						if (++i == expression.Length)
+							return null;
+					}
 				}
+				else if (lastType == TokenType.Invalid)
+					whitespaceBefore = true;
+				else if (RequiresWhitespaceAfter(lastType))
+					throw new InvalidDataException("Missing whitespace at index {0}, after `{1}` operator."
+						.F(i, GetTokenSymbol(lastType)));
 
 				var start = i;
 
 				var type = GetNextType(expression, ref i, lastType);
+				if (!whitespaceBefore && RequiresWhitespaceBefore(type))
+					throw new InvalidDataException("Missing whitespace at index {0}, before `{1}` operator."
+						.F(i, GetTokenSymbol(type)));
+
 				switch (type)
 				{
 					case TokenType.Number:
@@ -525,15 +578,19 @@ namespace OpenRA.Support
 			}
 		}
 
-		public ConditionExpression(string expression)
+		public VariableExpression(string expression)
 		{
 			Expression = expression;
+		}
+
+		Expression Build(ExpressionType resultType)
+		{
 			var tokens = new List<Token>();
 			var currentOpeners = new Stack<Token>();
 			Token lastToken = null;
 			for (var i = 0;;)
 			{
-				var token = Token.GetNext(expression, ref i, lastToken != null ? lastToken.Type : TokenType.Invalid);
+				var token = Token.GetNext(Expression, ref i, lastToken != null ? lastToken.Type : TokenType.Invalid);
 				if (token == null)
 				{
 					// Sanity check parsed tree
@@ -591,7 +648,20 @@ namespace OpenRA.Support
 			if (currentOpeners.Count > 0)
 				throw new InvalidDataException("Unclosed opening parenthesis at index {0}".F(currentOpeners.Peek().Index));
 
-			asFunction = new Compiler().Compile(ToPostfix(tokens).ToArray());
+			return new Compiler().Build(ToPostfix(tokens).ToArray(), resultType);
+		}
+
+		protected Func<IReadOnlyDictionary<string, int>, T> Compile<T>()
+		{
+			ExpressionType resultType;
+			if (typeof(T) == typeof(int))
+				resultType = ExpressionType.Int;
+			else if (typeof(T) == typeof(bool))
+				resultType = ExpressionType.Bool;
+			else
+				throw new InvalidCastException("Variable expressions can only be int or bool.");
+
+			return Expressions.Expression.Lambda<Func<IReadOnlyDictionary<string, int>, T>>(Build(resultType), SymbolsParam).Compile();
 		}
 
 		static int ParseSymbol(string symbol, IReadOnlyDictionary<string, int> symbols)
@@ -614,7 +684,7 @@ namespace OpenRA.Support
 					while (!((temp = s.Pop()).Opens != Grouping.None))
 						yield return temp;
 				}
-				else if (t.OperandSides == OperandSides.None)
+				else if (t.OperandSides == Sides.None)
 					yield return t;
 				else
 				{
@@ -712,7 +782,7 @@ namespace OpenRA.Support
 		{
 			readonly AstStack ast = new AstStack();
 
-			public Func<IReadOnlyDictionary<string, int>, int> Compile(Token[] postfix)
+			public Expression Build(Token[] postfix, ExpressionType resultType)
 			{
 				foreach (var t in postfix)
 				{
@@ -877,10 +947,34 @@ namespace OpenRA.Support
 					}
 				}
 
-				return Expressions.Expression.Lambda<Func<IReadOnlyDictionary<string, int>, int>>(
-					ast.Pop(ExpressionType.Int), SymbolsParam).Compile();
+				return ast.Pop(resultType);
 			}
 		}
+	}
+
+	public class BooleanExpression : VariableExpression
+	{
+		readonly Func<IReadOnlyDictionary<string, int>, bool> asFunction;
+
+		public BooleanExpression(string expression) : base(expression)
+		{
+			asFunction = Compile<bool>();
+		}
+
+		public bool Evaluate(IReadOnlyDictionary<string, int> symbols)
+		{
+			return asFunction(symbols);
+		}
+	}
+
+	public class IntegerExpression : VariableExpression
+	{
+		readonly Func<IReadOnlyDictionary<string, int>, int> asFunction;
+
+		public IntegerExpression(string expression) : base(expression)
+		{
+			asFunction = Compile<int>();
+		}
 
 		public int Evaluate(IReadOnlyDictionary<string, int> symbols)
 		{

OpenRA.Game/Traits/Player/DeveloperMode.cs

@@ -10,6 +10,7 @@
 #endregion
 
 using System.Collections.Generic;
+using System.Linq;
 
 namespace OpenRA.Traits
 {
@@ -113,7 +114,7 @@ namespace OpenRA.Traits
 
 		void INotifyCreated.Created(Actor self)
 		{
-			Enabled = self.World.LobbyInfo.IsSinglePlayer || self.World.LobbyInfo.GlobalSettings
+			Enabled = self.World.LobbyInfo.NonBotPlayers.Count() == 1 || self.World.LobbyInfo.GlobalSettings
 				.OptionOrDefault("cheats", info.Enabled);
 		}
 

OpenRA.Game/Traits/Target.cs

@@ -145,12 +145,11 @@ namespace OpenRA.Traits
 						if (!actor.Targetables.Any(Exts.IsTraitEnabled))
 							return new[] { actor.CenterPosition };
 
-						var targetablePositions = actor.TraitOrDefault<ITargetablePositions>();
-						if (targetablePositions != null)
+						var targetablePositions = actor.TraitsImplementing<ITargetablePositions>().Where(Exts.IsTraitEnabled);
+						if (targetablePositions.Any())
 						{
-							var positions = targetablePositions.TargetablePositions(actor);
-							if (positions.Any())
-								return positions;
+							var target = this;
+							return targetablePositions.SelectMany(tp => tp.TargetablePositions(target.actor));
 						}
 
 						return new[] { actor.CenterPosition };

OpenRA.Game/Traits/TraitsInterfaces.cs

@@ -95,6 +95,8 @@ namespace OpenRA.Traits
 	public interface ITick { void Tick(Actor self); }
 	public interface ITickRender { void TickRender(WorldRenderer wr, Actor self); }
 	public interface IRender { IEnumerable<IRenderable> Render(Actor self, WorldRenderer wr); }
+
+	public interface IAutoSelectionSizeInfo : ITraitInfoInterface { }
 	public interface IAutoSelectionSize { int2 SelectionSize(Actor self); }
 
 	public interface IIssueOrder
@@ -199,6 +201,11 @@ namespace OpenRA.Traits
 
 	public interface IRadarColorModifier { Color RadarColorOverride(Actor self, Color color); }
 
+	public interface ITargetableCells
+	{
+		IEnumerable<Pair<CPos, SubCell>> TargetableCells();
+	}
+
 	public interface IOccupySpaceInfo : ITraitInfoInterface
 	{
 		IReadOnlyDictionary<CPos, SubCell> OccupiedCells(ActorInfo info, CPos location, SubCell subCell = SubCell.Any);
@@ -285,7 +292,7 @@ namespace OpenRA.Traits
 	public interface IMove
 	{
 		Activity MoveTo(CPos cell, int nearEnough);
-		Activity MoveTo(CPos cell, Actor ignoredActor);
+		Activity MoveTo(CPos cell, Actor ignoreActor);
 		Activity MoveWithinRange(Target target, WDist range);
 		Activity MoveWithinRange(Target target, WDist minRange, WDist maxRange);
 		Activity MoveFollow(Actor self, Target target, WDist minRange, WDist maxRange);
@@ -330,7 +337,12 @@ namespace OpenRA.Traits
 	public interface IWorldLoaded { void WorldLoaded(World w, WorldRenderer wr); }
 	public interface ICreatePlayers { void CreatePlayers(World w); }
 
-	public interface IBotInfo : ITraitInfoInterface { string Name { get; } }
+	public interface IBotInfo : ITraitInfoInterface
+	{
+		string Type { get; }
+		string Name { get; }
+	}
+
 	public interface IBot
 	{
 		void Activate(Player p);

OpenRA.Game/UtilityCommands/ClearInvalidModRegistrationsCommand.cs

@@ -0,0 +1,41 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2017 The OpenRA Developers (see AUTHORS)
+ * This file is part of OpenRA, which is free software. It is made
+ * available to you under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version. For more
+ * information, see COPYING.
+ */
+#endregion
+
+using System.Linq;
+
+namespace OpenRA.UtilityCommands
+{
+	class ClearInvalidModRegistrationsCommand : IUtilityCommand
+	{
+		string IUtilityCommand.Name { get { return "--clear-invalid-mod-registrations"; } }
+		bool IUtilityCommand.ValidateArguments(string[] args)
+		{
+			return args.Length >= 2 && new string[] { "system", "user", "both" }.Contains(args[1]);
+		}
+
+		[Desc("(system|user|both)", "Removes invalid metadata entries for the in-game mod switcher.")]
+		void IUtilityCommand.Run(Utility utility, string[] args)
+		{
+			ModRegistration type = 0;
+			if (args[1] == "system" || args[1] == "both")
+				type |= ModRegistration.System;
+
+			if (args[1] == "user" || args[1] == "both")
+				type |= ModRegistration.User;
+
+			var mods = new ExternalMods();
+
+			ExternalMod activeMod = null;
+			mods.TryGetValue(ExternalMod.MakeKey(utility.ModData.Manifest), out activeMod);
+			mods.ClearInvalidRegistrations(activeMod, type);
+		}
+	}
+}

OpenRA.Game/UtilityCommands/RegisterModCommand.cs

@@ -0,0 +1,37 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2017 The OpenRA Developers (see AUTHORS)
+ * This file is part of OpenRA, which is free software. It is made
+ * available to you under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version. For more
+ * information, see COPYING.
+ */
+#endregion
+
+using System.Linq;
+
+namespace OpenRA.UtilityCommands
+{
+	class RegisterModCommand : IUtilityCommand
+	{
+		string IUtilityCommand.Name { get { return "--register-mod"; } }
+		bool IUtilityCommand.ValidateArguments(string[] args)
+		{
+			return args.Length >= 3 && new string[] { "system", "user", "both" }.Contains(args[2]);
+		}
+
+		[Desc("LAUNCHPATH (system|user|both)", "Generates a mod metadata entry for the in-game mod switcher.")]
+		void IUtilityCommand.Run(Utility utility, string[] args)
+		{
+			ModRegistration type = 0;
+			if (args[2] == "system" || args[2] == "both")
+				type |= ModRegistration.System;
+
+			if (args[2] == "user" || args[2] == "both")
+				type |= ModRegistration.User;
+
+			new ExternalMods().Register(utility.ModData.Manifest, args[1], type);
+		}
+	}
+}

OpenRA.Game/UtilityCommands/UnregisterModCommand.cs

@@ -0,0 +1,37 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2017 The OpenRA Developers (see AUTHORS)
+ * This file is part of OpenRA, which is free software. It is made
+ * available to you under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version. For more
+ * information, see COPYING.
+ */
+#endregion
+
+using System.Linq;
+
+namespace OpenRA.UtilityCommands
+{
+	class UnregisterModCommand : IUtilityCommand
+	{
+		string IUtilityCommand.Name { get { return "--unregister-mod"; } }
+		bool IUtilityCommand.ValidateArguments(string[] args)
+		{
+			return args.Length >= 2 && new string[] { "system", "user", "both" }.Contains(args[1]);
+		}
+
+		[Desc("(system|user|both)", "Removes the mod metadata entry for the in-game mod switcher.")]
+		void IUtilityCommand.Run(Utility utility, string[] args)
+		{
+			ModRegistration type = 0;
+			if (args[1] == "system" || args[1] == "both")
+				type |= ModRegistration.System;
+
+			if (args[1] == "user" || args[1] == "both")
+				type |= ModRegistration.User;
+
+			new ExternalMods().Unregister(utility.ModData.Manifest, type);
+		}
+	}
+}

OpenRA.Game/Widgets/RootWidget.cs

@@ -1,55 +0,0 @@
-#region Copyright & License Information
-/*
- * Copyright 2007-2017 The OpenRA Developers (see AUTHORS)
- * This file is part of OpenRA, which is free software. It is made
- * available to you under the terms of the GNU General Public License
- * as published by the Free Software Foundation, either version 3 of
- * the License, or (at your option) any later version. For more
- * information, see COPYING.
- */
-#endregion
-
-using OpenRA.Graphics;
-
-namespace OpenRA.Widgets
-{
-	public class RootWidget : ContainerWidget
-	{
-		public RootWidget()
-		{
-			IgnoreMouseOver = true;
-		}
-
-		public override bool HandleKeyPress(KeyInput e)
-		{
-			if (e.Event == KeyInputEvent.Down)
-			{
-				var hk = Hotkey.FromKeyInput(e);
-
-				if (hk == Game.Settings.Keys.DevReloadChromeKey)
-				{
-					ChromeProvider.Initialize(Game.ModData);
-					return true;
-				}
-
-				if (hk == Game.Settings.Keys.HideUserInterfaceKey)
-				{
-					foreach (var child in Children)
-						child.Visible ^= true;
-
-					return true;
-				}
-
-				if (hk == Game.Settings.Keys.TakeScreenshotKey)
-				{
-					if (e.Event == KeyInputEvent.Down)
-						Game.TakeScreenshot = true;
-
-					return true;
-				}
-			}
-
-			return base.HandleKeyPress(e);
-		}
-	}
-}

OpenRA.Game/Widgets/Widget.cs

@@ -20,7 +20,7 @@ namespace OpenRA.Widgets
 {
 	public static class Ui
 	{
-		public static Widget Root = new RootWidget();
+		public static Widget Root = new ContainerWidget();
 
 		public static long LastTickTime = Game.RunTime;
 
@@ -108,7 +108,7 @@ namespace OpenRA.Widgets
 			if (mi.Event == MouseInputEvent.Move)
 			{
 				Viewport.LastMousePos = mi.Location;
-				Viewport.TicksSinceLastMove = 0;
+				Viewport.LastMoveRunTime = Game.RunTime;
 			}
 
 			if (wasMouseOver != MouseOverWidget)
@@ -128,6 +128,29 @@ namespace OpenRA.Widgets
 		/// <param name="e">Key input data</param>
 		public static bool HandleKeyPress(KeyInput e)
 		{
+			if (e.Event == KeyInputEvent.Down)
+			{
+				var hk = Hotkey.FromKeyInput(e);
+
+				if (hk == Game.Settings.Keys.DevReloadChromeKey)
+				{
+					ChromeProvider.Initialize(Game.ModData);
+					return true;
+				}
+
+				if (hk == Game.Settings.Keys.HideUserInterfaceKey)
+				{
+					Root.Visible ^= true;
+					return true;
+				}
+
+				if (hk == Game.Settings.Keys.TakeScreenshotKey)
+				{
+					Game.TakeScreenshot = true;
+					return true;
+				}
+			}
+
 			if (KeyboardFocusWidget != null)
 				return KeyboardFocusWidget.HandleKeyPressOuter(e);
 

OpenRA.Game/World.cs

@@ -40,6 +40,7 @@ namespace OpenRA
 		public Session LobbyInfo { get { return OrderManager.LobbyInfo; } }
 
 		public readonly MersenneTwister SharedRandom;
+		public readonly IModelCache ModelCache;
 
 		public Player[] Players = new Player[0];
 
@@ -147,7 +148,7 @@ namespace OpenRA
 			}
 		}
 
-		internal World(Map map, OrderManager orderManager, WorldType type)
+		internal World(ModData modData, Map map, OrderManager orderManager, WorldType type)
 		{
 			Type = type;
 			OrderManager = orderManager;
@@ -156,6 +157,8 @@ namespace OpenRA
 			Timestep = orderManager.LobbyInfo.GlobalSettings.Timestep;
 			SharedRandom = new MersenneTwister(orderManager.LobbyInfo.GlobalSettings.RandomSeed);
 
+			ModelCache = modData.ModelSequenceLoader.CacheModels(map, modData, map.Rules.ModelSequences);
+
 			var worldActorType = type == WorldType.Editor ? "EditorWorld" : "World";
 			WorldActor = CreateActor(worldActorType, new TypeDictionary());
 			ActorMap = WorldActor.Trait<IActorMap>();
@@ -437,6 +440,8 @@ namespace OpenRA
 			Game.Sound.StopAudio();
 			Game.Sound.StopVideo();
 
+			ModelCache.Dispose();
+
 			// Dispose newer actors first, and the world actor last
 			foreach (var a in actors.Values.Reverse())
 				a.Dispose();

OpenRA.GameMonitor/GameMonitor.cs

@@ -1,155 +0,0 @@
-#region Copyright & License Information
-/*
- * Copyright 2007-2017 The OpenRA Developers (see AUTHORS)
- * This file is part of OpenRA, which is free software. It is made
- * available to you under the terms of the GNU General Public License
- * as published by the Free Software Foundation, either version 3 of
- * the License, or (at your option) any later version. For more
- * information, see COPYING.
- */
-#endregion
-
-using System;
-using System.Diagnostics;
-using System.Drawing;
-using System.IO;
-using System.Linq;
-using System.Media;
-using System.Reflection;
-using System.Windows.Forms;
-
-namespace OpenRA
-{
-	class GameMonitor
-	{
-		static Process gameProcess;
-
-		[STAThread]
-		static void Main(string[] args)
-		{
-			var launcherPath = Assembly.GetExecutingAssembly().Location;
-			var directory = Path.GetDirectoryName(launcherPath);
-			var enginePath = Path.Combine(directory, "OpenRA.Game.exe");
-
-			Directory.SetCurrentDirectory(directory);
-
-			var engineArgs = args
-				.Append("Engine.LaunchPath=" + launcherPath)
-				.Select(arg => "\"" + arg + "\"");
-
-			var psi = new ProcessStartInfo(enginePath, string.Join(" ", engineArgs));
-
-			try
-			{
-				gameProcess = Process.Start(psi);
-			}
-			catch
-			{
-				return;
-			}
-
-			if (gameProcess == null)
-				return;
-
-			gameProcess.EnableRaisingEvents = true;
-			gameProcess.Exited += GameProcessExited;
-
-			Application.Run();
-		}
-
-		static void ShowErrorDialog()
-		{
-			var form = new Form
-			{
-				Size = new Size(315, 140),
-				Text = "Fatal Error",
-				MinimizeBox = false,
-				MaximizeBox = false,
-				FormBorderStyle = FormBorderStyle.FixedDialog,
-				StartPosition = FormStartPosition.CenterScreen,
-				TopLevel = true,
-				Icon = Icon.ExtractAssociatedIcon(Assembly.GetExecutingAssembly().Location)
-			};
-
-			var notice = new Label
-			{
-				Location = new Point(10, 10),
-				AutoSize = true,
-				Text = "OpenRA has encountered a fatal error and must close.{0}Refer to the crash logs and FAQ for more information.".F(Environment.NewLine),
-				TextAlign = ContentAlignment.TopCenter
-			};
-
-			var viewLogs = new Button
-			{
-				Location = new Point(10, 80),
-				Size = new Size(75, 23),
-				Text = "View Logs"
-			};
-
-			var viewFaq = new Button
-			{
-				Location = new Point(90, 80),
-				Size = new Size(75, 23),
-				Text = "View FAQ"
-			};
-
-			var quit = new Button
-			{
-				Location = new Point(225, 80),
-				Size = new Size(75, 23),
-				Text = "Quit",
-				DialogResult = DialogResult.Cancel
-			};
-
-			form.Controls.Add(notice);
-			form.Controls.Add(viewLogs);
-			form.Controls.Add(viewFaq);
-			form.Controls.Add(quit);
-
-			viewLogs.Click += ViewLogsClicked;
-			viewFaq.Click += ViewFaqClicked;
-			form.FormClosed += FormClosed;
-
-			SystemSounds.Exclamation.Play();
-			form.ShowDialog();
-		}
-
-		static void GameProcessExited(object sender, EventArgs e)
-		{
-			if (gameProcess.ExitCode != (int)RunStatus.Success)
-				ShowErrorDialog();
-
-			Exit();
-		}
-
-		static void ViewLogsClicked(object sender, EventArgs e)
-		{
-			try
-			{
-				Process.Start(Platform.ResolvePath("^", "Logs"));
-			}
-			catch
-			{ }
-		}
-
-		static void ViewFaqClicked(object sender, EventArgs e)
-		{
-			try
-			{
-				Process.Start("http://wiki.openra.net/FAQ");
-			}
-			catch
-			{ }
-		}
-
-		static void FormClosed(object sender, EventArgs e)
-		{
-			Exit();
-		}
-
-		static void Exit()
-		{
-			Environment.Exit(0);
-		}
-	}
-}

OpenRA.GameMonitor/OpenRA.GameMonitor.csproj

@@ -1,54 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <PropertyGroup>
-    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
-    <Platform Condition=" '$(Platform)' == '' ">x86</Platform>
-    <ProjectGuid>{68295755-7902-4602-AC2C-9A8AC36D5EF7}</ProjectGuid>
-    <OutputType>WinExe</OutputType>
-    <RootNamespace>OpenRA</RootNamespace>
-    <AssemblyName>OpenRA</AssemblyName>
-    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x86'">
-    <DebugSymbols>true</DebugSymbols>
-    <DebugType>full</DebugType>
-    <OutputPath>..\</OutputPath>
-    <DefineConstants>DEBUG;TRACE</DefineConstants>
-    <ErrorReport>prompt</ErrorReport>
-    <PlatformTarget>x86</PlatformTarget>
-    <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
-    <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
-    <UseVSHostingProcess>false</UseVSHostingProcess>
-  </PropertyGroup>
-  <PropertyGroup>
-    <ApplicationIcon>..\OpenRA.Game\OpenRA.ico</ApplicationIcon>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x86'">
-    <DebugSymbols>true</DebugSymbols>
-    <OutputPath>..\</OutputPath>
-    <DefineConstants>TRACE</DefineConstants>
-    <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
-    <DebugType>pdbonly</DebugType>
-    <PlatformTarget>x86</PlatformTarget>
-    <UseVSHostingProcess>false</UseVSHostingProcess>
-    <ErrorReport>prompt</ErrorReport>
-    <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
-    <Optimize>true</Optimize>
-  </PropertyGroup>
-  <ItemGroup>
-    <Reference Include="System" />
-    <Reference Include="System.Windows.Forms" />
-    <Reference Include="System.Drawing" />
-  </ItemGroup>
-  <ItemGroup>
-    <ProjectReference Include="..\OpenRA.Game\OpenRA.Game.csproj">
-      <Project>{0DFB103F-2962-400F-8C6D-E2C28CCBA633}</Project>
-      <Name>OpenRA.Game</Name>
-      <Private>False</Private>
-    </ProjectReference>
-  </ItemGroup>
-  <ItemGroup>
-    <Compile Include="GameMonitor.cs" />
-  </ItemGroup>
-  <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
-</Project>

OpenRA.Mods.Cnc/Activities/LayMines.cs

@@ -53,11 +53,12 @@ namespace OpenRA.Mods.Cnc.Activities
 				if (rearmTarget == null)
 					return new Wait(20);
 
+				// Add a CloseEnough range of 512 to the Repair activity in order to ensure that we're at the host actor
 				return ActivityUtils.SequenceActivities(
 					new MoveAdjacentTo(self, Target.FromActor(rearmTarget)),
 					movement.MoveTo(self.World.Map.CellContaining(rearmTarget.CenterPosition), rearmTarget),
 					new Rearm(self),
-					new Repair(self, rearmTarget),
+					new Repair(self, rearmTarget, new WDist(512)),
 					this);
 			}
 

OpenRA.Mods.Cnc/FileFormats/Blowfish.cs

@@ -9,7 +9,7 @@
  */
 #endregion
 
-namespace OpenRA.FileFormats
+namespace OpenRA.Mods.Cnc.FileFormats
 {
 	class Blowfish
 	{

OpenRA.Mods.Cnc/FileFormats/BlowfishKeyProvider.cs

@@ -12,7 +12,7 @@
 using System;
 using System.Linq;
 
-namespace OpenRA.FileFormats
+namespace OpenRA.Mods.Cnc.FileFormats
 {
 	/* TODO: Convert this direct C port into readable code. */
 

OpenRA.Mods.Cnc/FileFormats/CRC32.cs

@@ -9,7 +9,7 @@
  */
 #endregion
 
-namespace OpenRA.FileFormats
+namespace OpenRA.Mods.Cnc.FileFormats
 {
 	/// <summary>
 	/// Static class that uses a lookup table to calculates CRC32

OpenRA.Mods.Cnc/FileFormats/HvaReader.cs

@@ -14,7 +14,7 @@ using System;
 using System.IO;
 using OpenRA.Graphics;
 
-namespace OpenRA.FileFormats
+namespace OpenRA.Mods.Cnc.FileFormats
 {
 	public class HvaReader
 	{

OpenRA.Mods.Cnc/FileFormats/IdxEntry.cs

@@ -9,10 +9,9 @@
  */
 #endregion
 
-using System.Collections.Generic;
 using System.IO;
 
-namespace OpenRA.FileSystem
+namespace OpenRA.Mods.Cnc.FileFormats
 {
 	public class IdxEntry
 	{

OpenRA.Mods.Cnc/FileFormats/IdxReader.cs

@@ -11,9 +11,8 @@
 
 using System.Collections.Generic;
 using System.IO;
-using OpenRA.FileSystem;
 
-namespace OpenRA.FileFormats
+namespace OpenRA.Mods.Cnc.FileFormats
 {
 	public class IdxReader
 	{

OpenRA.Mods.Cnc/FileFormats/VxlReader.cs

@@ -13,7 +13,7 @@
 using System.Collections.Generic;
 using System.IO;
 
-namespace OpenRA.FileFormats
+namespace OpenRA.Mods.Cnc.FileFormats
 {
 	public enum NormalType { TiberianSun = 2, RedAlert2 = 4 }
 	public class VxlElement

OpenRA.Mods.Cnc/FileFormats/XccGlobalDatabase.cs

@@ -13,7 +13,7 @@ using System;
 using System.Collections.Generic;
 using System.IO;
 
-namespace OpenRA.FileFormats
+namespace OpenRA.Mods.Cnc.FileFormats
 {
 	public class XccGlobalDatabase : IDisposable
 	{

OpenRA.Mods.Cnc/FileFormats/XccLocalDatabase.cs

@@ -14,7 +14,7 @@ using System.IO;
 using System.Linq;
 using System.Text;
 
-namespace OpenRA.FileFormats
+namespace OpenRA.Mods.Cnc.FileFormats
 {
 	public class XccLocalDatabase
 	{

OpenRA.Mods.Cnc/FileSystem/BagFile.cs

@@ -0,0 +1,155 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2017 The OpenRA Developers (see AUTHORS)
+ * This file is part of OpenRA, which is free software. It is made
+ * available to you under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version. For more
+ * information, see COPYING.
+ */
+#endregion
+
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Text;
+using OpenRA.FileSystem;
+using OpenRA.Mods.Cnc.FileFormats;
+using OpenRA.Primitives;
+using FS = OpenRA.FileSystem.FileSystem;
+
+namespace OpenRA.Mods.Cnc.FileSystem
+{
+	public class AudioBagLoader : IPackageLoader
+	{
+		sealed class BagFile : IReadOnlyPackage
+		{
+			public string Name { get; private set; }
+			public IEnumerable<string> Contents { get { return index.Keys; } }
+
+			readonly Stream s;
+			readonly Dictionary<string, IdxEntry> index;
+
+			public BagFile(Stream s, List<IdxEntry> entries, string filename)
+			{
+				Name = filename;
+				this.s = s;
+
+				index = entries.ToDictionaryWithConflictLog(x => x.Filename,
+					"{0} (bag format)".F(filename),
+					null, x => "(offs={0}, len={1})".F(x.Offset, x.Length));
+			}
+
+			public Stream GetStream(string filename)
+			{
+				IdxEntry entry;
+				if (!index.TryGetValue(filename, out entry))
+					return null;
+
+				s.Seek(entry.Offset, SeekOrigin.Begin);
+
+				var waveHeaderMemoryStream = new MemoryStream();
+
+				var channels = (entry.Flags & 1) > 0 ? 2 : 1;
+
+				if ((entry.Flags & 2) > 0)
+				{
+					// PCM
+					waveHeaderMemoryStream.Write(Encoding.ASCII.GetBytes("RIFF"));
+					waveHeaderMemoryStream.Write(BitConverter.GetBytes(entry.Length + 36));
+					waveHeaderMemoryStream.Write(Encoding.ASCII.GetBytes("WAVE"));
+					waveHeaderMemoryStream.Write(Encoding.ASCII.GetBytes("fmt "));
+					waveHeaderMemoryStream.Write(BitConverter.GetBytes(16));
+					waveHeaderMemoryStream.Write(BitConverter.GetBytes((short)1));
+					waveHeaderMemoryStream.Write(BitConverter.GetBytes((short)channels));
+					waveHeaderMemoryStream.Write(BitConverter.GetBytes(entry.SampleRate));
+					waveHeaderMemoryStream.Write(BitConverter.GetBytes(2 * channels * entry.SampleRate));
+					waveHeaderMemoryStream.Write(BitConverter.GetBytes((short)(2 * channels)));
+					waveHeaderMemoryStream.Write(BitConverter.GetBytes((short)16));
+					waveHeaderMemoryStream.Write(Encoding.ASCII.GetBytes("data"));
+					waveHeaderMemoryStream.Write(BitConverter.GetBytes(entry.Length));
+				}
+
+				if ((entry.Flags & 8) > 0)
+				{
+					// IMA ADPCM
+					var samplesPerChunk = (2 * (entry.ChunkSize - 4)) + 1;
+					var bytesPerSec = (int)Math.Floor(((double)(2 * entry.ChunkSize) / samplesPerChunk) * ((double)entry.SampleRate / 2));
+					var chunkSize = entry.ChunkSize > entry.Length ? entry.Length : entry.ChunkSize;
+
+					waveHeaderMemoryStream.Write(Encoding.ASCII.GetBytes("RIFF"));
+					waveHeaderMemoryStream.Write(BitConverter.GetBytes(entry.Length + 52));
+					waveHeaderMemoryStream.Write(Encoding.ASCII.GetBytes("WAVE"));
+					waveHeaderMemoryStream.Write(Encoding.ASCII.GetBytes("fmt "));
+					waveHeaderMemoryStream.Write(BitConverter.GetBytes(20));
+					waveHeaderMemoryStream.Write(BitConverter.GetBytes((short)17));
+					waveHeaderMemoryStream.Write(BitConverter.GetBytes((short)channels));
+					waveHeaderMemoryStream.Write(BitConverter.GetBytes(entry.SampleRate));
+					waveHeaderMemoryStream.Write(BitConverter.GetBytes(bytesPerSec));
+					waveHeaderMemoryStream.Write(BitConverter.GetBytes((short)chunkSize));
+					waveHeaderMemoryStream.Write(BitConverter.GetBytes((short)4));
+					waveHeaderMemoryStream.Write(BitConverter.GetBytes((short)2));
+					waveHeaderMemoryStream.Write(BitConverter.GetBytes((short)samplesPerChunk));
+					waveHeaderMemoryStream.Write(Encoding.ASCII.GetBytes("fact"));
+					waveHeaderMemoryStream.Write(BitConverter.GetBytes(4));
+					waveHeaderMemoryStream.Write(BitConverter.GetBytes(4 * entry.Length));
+					waveHeaderMemoryStream.Write(Encoding.ASCII.GetBytes("data"));
+					waveHeaderMemoryStream.Write(BitConverter.GetBytes(entry.Length));
+				}
+
+				waveHeaderMemoryStream.Seek(0, SeekOrigin.Begin);
+
+				// Construct a merged stream
+				var mergedStream = new MergedStream(waveHeaderMemoryStream, s);
+				mergedStream.SetLength(waveHeaderMemoryStream.Length + entry.Length);
+
+				return mergedStream;
+			}
+
+			public bool Contains(string filename)
+			{
+				return index.ContainsKey(filename);
+			}
+
+			public IReadOnlyPackage OpenPackage(string filename, FS context)
+			{
+				// Not implemented
+				return null;
+			}
+
+			public void Dispose()
+			{
+				s.Dispose();
+			}
+		}
+
+		bool IPackageLoader.TryParsePackage(Stream s, string filename, FS context, out IReadOnlyPackage package)
+		{
+			if (!filename.EndsWith(".bag", StringComparison.InvariantCultureIgnoreCase))
+			{
+				package = null;
+				return false;
+			}
+
+			// A bag file is always accompanied with an .idx counterpart
+			// For example: audio.bag requires the audio.idx file
+			var indexFilename = Path.ChangeExtension(filename, ".idx");
+			List<IdxEntry> entries  = null;
+
+			try
+			{
+				// Build the index and dispose the stream, it is no longer needed after this
+				using (var indexStream = context.Open(indexFilename))
+					entries = new IdxReader(indexStream).Entries;
+			}
+			catch
+			{
+				package = null;
+				return false;
+			}
+
+			package = new BagFile(s, entries, filename);
+			return true;
+		}
+	}
+}

OpenRA.Mods.Cnc/FileSystem/BigFile.cs

@@ -0,0 +1,130 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2017 The OpenRA Developers (see AUTHORS)
+ * This file is part of OpenRA, which is free software. It is made
+ * available to you under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version. For more
+ * information, see COPYING.
+ */
+#endregion
+
+using System;
+using System.Collections.Generic;
+using System.IO;
+using OpenRA.FileSystem;
+using FS = OpenRA.FileSystem.FileSystem;
+
+namespace OpenRA.Mods.Cnc.FileSystem
+{
+	public class BigLoader : IPackageLoader
+	{
+		sealed class BigFile : IReadOnlyPackage
+		{
+			public string Name { get; private set; }
+			public IEnumerable<string> Contents { get { return index.Keys; } }
+
+			readonly Dictionary<string, Entry> index = new Dictionary<string, Entry>();
+			readonly Stream s;
+
+			public BigFile(Stream s, string filename)
+			{
+				Name = filename;
+				this.s = s;
+
+				try
+				{
+					/* var signature = */ s.ReadASCII(4);
+
+					// Total archive size.
+					s.ReadUInt32();
+
+					var entryCount = s.ReadUInt32();
+					if (BitConverter.IsLittleEndian)
+						entryCount = int2.Swap(entryCount);
+
+					// First entry offset? This is apparently bogus for EA's .big files
+					// and we don't have to try seeking there since the entries typically start next in EA's .big files.
+					s.ReadUInt32();
+
+					for (var i = 0; i < entryCount; i++)
+					{
+						var entry = new Entry(s);
+						index.Add(entry.Path, entry);
+					}
+				}
+				catch
+				{
+					Dispose();
+					throw;
+				}
+			}
+
+			class Entry
+			{
+				readonly Stream s;
+				readonly uint offset;
+				readonly uint size;
+				public readonly string Path;
+
+				public Entry(Stream s)
+				{
+					this.s = s;
+
+					offset = s.ReadUInt32();
+					size = s.ReadUInt32();
+					if (BitConverter.IsLittleEndian)
+					{
+						offset = int2.Swap(offset);
+						size = int2.Swap(size);
+					}
+
+					Path = s.ReadASCIIZ();
+				}
+
+				public Stream GetData()
+				{
+					s.Position = offset;
+					return new MemoryStream(s.ReadBytes((int)size));
+				}
+			}
+
+			public Stream GetStream(string filename)
+			{
+				return index[filename].GetData();
+			}
+
+			public bool Contains(string filename)
+			{
+				return index.ContainsKey(filename);
+			}
+
+			public IReadOnlyPackage OpenPackage(string filename, FS context)
+			{
+				// Not implemented
+				return null;
+			}
+
+			public void Dispose()
+			{
+				s.Dispose();
+			}
+		}
+
+		bool IPackageLoader.TryParsePackage(Stream s, string filename, FS context, out IReadOnlyPackage package)
+		{
+			// Take a peek at the file signature
+			var signature = s.ReadASCII(4);
+			s.Position -= 4;
+
+			if (signature != "BIGF")
+			{
+				package = null;
+				return false;
+			}
+
+			package = new BigFile(s, filename);
+			return true;
+		}
+	}
+}

OpenRA.Mods.Cnc/FileSystem/MixFile.cs

@@ -0,0 +1,252 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2017 The OpenRA Developers (see AUTHORS)
+ * This file is part of OpenRA, which is free software. It is made
+ * available to you under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version. For more
+ * information, see COPYING.
+ */
+#endregion
+
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using OpenRA.FileFormats;
+using OpenRA.FileSystem;
+using OpenRA.Mods.Cnc.FileFormats;
+using OpenRA.Primitives;
+using FS = OpenRA.FileSystem.FileSystem;
+
+namespace OpenRA.Mods.Cnc.FileSystem
+{
+	public class MixLoader : IPackageLoader
+	{
+		public sealed class MixFile : IReadOnlyPackage
+		{
+			public string Name { get; private set; }
+			public IEnumerable<string> Contents { get { return index.Keys; } }
+
+			readonly Dictionary<string, PackageEntry> index;
+			readonly long dataStart;
+			readonly Stream s;
+
+			public MixFile(Stream s, string filename, HashSet<string> allPossibleFilenames)
+			{
+				Name = filename;
+				this.s = s;
+
+				try
+				{
+					// Detect format type
+					var isCncMix = s.ReadUInt16() != 0;
+
+					// The C&C mix format doesn't contain any flags or encryption
+					var isEncrypted = false;
+					if (!isCncMix)
+						isEncrypted = (s.ReadUInt16() & 0x2) != 0;
+
+					List<PackageEntry> entries;
+					if (isEncrypted)
+					{
+						long unused;
+						entries = ParseHeader(DecryptHeader(s, 4, out dataStart), 0, out unused);
+					}
+					else
+						entries = ParseHeader(s, isCncMix ? 0 : 4, out dataStart);
+
+					index = ParseIndex(entries.ToDictionaryWithConflictLog(x => x.Hash,
+						"{0} ({1} format, Encrypted: {2}, DataStart: {3})".F(filename, isCncMix ? "C&C" : "RA/TS/RA2", isEncrypted, dataStart),
+						null, x => "(offs={0}, len={1})".F(x.Offset, x.Length)), allPossibleFilenames);
+				}
+				catch (Exception)
+				{
+					Dispose();
+					throw;
+				}
+			}
+
+			Dictionary<string, PackageEntry> ParseIndex(Dictionary<uint, PackageEntry> entries, HashSet<string> allPossibleFilenames)
+			{
+				var classicIndex = new Dictionary<string, PackageEntry>();
+				var crcIndex = new Dictionary<string, PackageEntry>();
+
+				// Try and find a local mix database
+				var dbNameClassic = PackageEntry.HashFilename("local mix database.dat", PackageHashType.Classic);
+				var dbNameCRC = PackageEntry.HashFilename("local mix database.dat", PackageHashType.CRC32);
+				foreach (var kv in entries)
+				{
+					if (kv.Key == dbNameClassic || kv.Key == dbNameCRC)
+					{
+						using (var content = GetContent(kv.Value))
+						{
+							var db = new XccLocalDatabase(content);
+							foreach (var e in db.Entries)
+								allPossibleFilenames.Add(e);
+						}
+
+						break;
+					}
+				}
+
+				foreach (var filename in allPossibleFilenames)
+				{
+					var classicHash = PackageEntry.HashFilename(filename, PackageHashType.Classic);
+					var crcHash = PackageEntry.HashFilename(filename, PackageHashType.CRC32);
+					PackageEntry e;
+
+					if (entries.TryGetValue(classicHash, out e))
+						classicIndex.Add(filename, e);
+
+					if (entries.TryGetValue(crcHash, out e))
+						crcIndex.Add(filename, e);
+				}
+
+				var bestIndex = crcIndex.Count > classicIndex.Count ? crcIndex : classicIndex;
+
+				var unknown = entries.Count - bestIndex.Count;
+				if (unknown > 0)
+					Log.Write("debug", "{0}: failed to resolve filenames for {1} unknown hashes".F(Name, unknown));
+
+				return bestIndex;
+			}
+
+			static List<PackageEntry> ParseHeader(Stream s, long offset, out long headerEnd)
+			{
+				s.Seek(offset, SeekOrigin.Begin);
+				var numFiles = s.ReadUInt16();
+				/*uint dataSize = */s.ReadUInt32();
+
+				var items = new List<PackageEntry>();
+				for (var i = 0; i < numFiles; i++)
+					items.Add(new PackageEntry(s));
+
+				headerEnd = offset + 6 + numFiles * PackageEntry.Size;
+				return items;
+			}
+
+			static MemoryStream DecryptHeader(Stream s, long offset, out long headerEnd)
+			{
+				s.Seek(offset, SeekOrigin.Begin);
+
+				// Decrypt blowfish key
+				var keyblock = s.ReadBytes(80);
+				var blowfishKey = new BlowfishKeyProvider().DecryptKey(keyblock);
+				var fish = new Blowfish(blowfishKey);
+
+				// Decrypt first block to work out the header length
+				var ms = Decrypt(ReadBlocks(s, offset + 80, 1), fish);
+				var numFiles = ms.ReadUInt16();
+
+				// Decrypt the full header - round bytes up to a full block
+				var blockCount = (13 + numFiles * PackageEntry.Size) / 8;
+				headerEnd = offset + 80 + blockCount * 8;
+
+				return Decrypt(ReadBlocks(s, offset + 80, blockCount), fish);
+			}
+
+			static MemoryStream Decrypt(uint[] h, Blowfish fish)
+			{
+				var decrypted = fish.Decrypt(h);
+
+				var ms = new MemoryStream();
+				var writer = new BinaryWriter(ms);
+				foreach (var t in decrypted)
+					writer.Write(t);
+				writer.Flush();
+
+				ms.Seek(0, SeekOrigin.Begin);
+				return ms;
+			}
+
+			static uint[] ReadBlocks(Stream s, long offset, int count)
+			{
+				if (offset < 0)
+					throw new ArgumentOutOfRangeException("offset", "Non-negative number required.");
+
+				if (count < 0)
+					throw new ArgumentOutOfRangeException("count", "Non-negative number required.");
+
+				if (offset + (count * 2) > s.Length)
+					throw new ArgumentException("Bytes to read {0} and offset {1} greater than stream length {2}.".F(count * 2, offset, s.Length));
+
+				s.Seek(offset, SeekOrigin.Begin);
+
+				// A block is a single encryption unit (represented as two 32-bit integers)
+				var ret = new uint[2 * count];
+				for (var i = 0; i < ret.Length; i++)
+					ret[i] = s.ReadUInt32();
+
+				return ret;
+			}
+
+			public Stream GetContent(PackageEntry entry)
+			{
+				return SegmentStream.CreateWithoutOwningStream(s, dataStart + entry.Offset, (int)entry.Length);
+			}
+
+			public Stream GetStream(string filename)
+			{
+				PackageEntry e;
+				if (!index.TryGetValue(filename, out e))
+					return null;
+
+				return GetContent(e);
+			}
+
+			public IReadOnlyDictionary<string, PackageEntry> Index
+			{
+				get
+				{
+					var absoluteIndex = index.ToDictionary(e => e.Key, e => new PackageEntry(e.Value.Hash, (uint)(e.Value.Offset + dataStart), e.Value.Length));
+					return new ReadOnlyDictionary<string, PackageEntry>(absoluteIndex);
+				}
+			}
+
+			public bool Contains(string filename)
+			{
+				return index.ContainsKey(filename);
+			}
+
+			public IReadOnlyPackage OpenPackage(string filename, FS context)
+			{
+				IReadOnlyPackage package;
+				var childStream = GetStream(filename);
+				if (childStream == null)
+					return null;
+
+				if (context.TryParsePackage(childStream, filename, out package))
+					return package;
+
+				childStream.Dispose();
+				return null;
+			}
+
+			public void Dispose()
+			{
+				s.Dispose();
+			}
+		}
+
+		bool IPackageLoader.TryParsePackage(Stream s, string filename, FS context, out IReadOnlyPackage package)
+		{
+			if (!filename.EndsWith(".mix", StringComparison.InvariantCultureIgnoreCase))
+			{
+				package = null;
+				return false;
+			}
+
+			// Load the global mix database
+			Stream mixDatabase;
+			var allPossibleFilenames = new HashSet<string>();
+			if (context.TryOpen("global mix database.dat", out mixDatabase))
+				using (var db = new XccGlobalDatabase(mixDatabase))
+					foreach (var e in db.Entries)
+						allPossibleFilenames.Add(e);
+
+			package = new MixFile(s, filename, allPossibleFilenames);
+			return true;
+		}
+	}
+}

OpenRA.Mods.Cnc/FileSystem/PackageEntry.cs

@@ -13,9 +13,9 @@ using System;
 using System.Collections.Generic;
 using System.IO;
 using System.Text;
-using OpenRA.FileFormats;
+using OpenRA.Mods.Cnc.FileFormats;
 
-namespace OpenRA.FileSystem
+namespace OpenRA.Mods.Cnc.FileSystem
 {
 	public enum PackageHashType { Classic, CRC32 }
 

OpenRA.Mods.Cnc/FileSystem/Pak.cs

@@ -0,0 +1,106 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2017 The OpenRA Developers (see AUTHORS)
+ * This file is part of OpenRA, which is free software. It is made
+ * available to you under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version. For more
+ * information, see COPYING.
+ */
+#endregion
+
+using System;
+using System.Collections.Generic;
+using System.IO;
+using OpenRA.FileSystem;
+using FS = OpenRA.FileSystem.FileSystem;
+
+namespace OpenRA.Mods.Cnc.FileSystem
+{
+	public class PakFileLoader : IPackageLoader
+	{
+		struct Entry
+		{
+			public uint Offset;
+			public uint Length;
+			public string Filename;
+		}
+
+		sealed class PakFile : IReadOnlyPackage
+		{
+			public string Name { get; private set; }
+			public IEnumerable<string> Contents { get { return index.Keys; } }
+
+			readonly Dictionary<string, Entry> index = new Dictionary<string, Entry>();
+			readonly Stream stream;
+
+			public PakFile(Stream stream, string filename)
+			{
+				Name = filename;
+				this.stream = stream;
+
+				try
+				{
+					var offset = stream.ReadUInt32();
+					while (offset != 0)
+					{
+						var file = stream.ReadASCIIZ();
+						var next = stream.ReadUInt32();
+						var length = (next == 0 ? (uint)stream.Length : next) - offset;
+
+						// Ignore duplicate files
+						if (index.ContainsKey(file))
+							continue;
+
+						index.Add(file, new Entry { Offset = offset, Length = length, Filename = file });
+						offset = next;
+					}
+				}
+				catch
+				{
+					Dispose();
+					throw;
+				}
+			}
+
+			public Stream GetStream(string filename)
+			{
+				Entry entry;
+				if (!index.TryGetValue(filename, out entry))
+					return null;
+
+				stream.Seek(entry.Offset, SeekOrigin.Begin);
+				var data = stream.ReadBytes((int)entry.Length);
+				return new MemoryStream(data);
+			}
+
+			public bool Contains(string filename)
+			{
+				return index.ContainsKey(filename);
+			}
+
+			public IReadOnlyPackage OpenPackage(string filename, FS context)
+			{
+				// Not implemented
+				return null;
+			}
+
+			public void Dispose()
+			{
+				stream.Dispose();
+			}
+		}
+
+		bool IPackageLoader.TryParsePackage(Stream s, string filename, FS context, out IReadOnlyPackage package)
+		{
+			if (!filename.EndsWith(".pak", StringComparison.InvariantCultureIgnoreCase))
+			{
+				package = null;
+				return false;
+			}
+
+			package = new PakFile(s, filename);
+			return true;
+		}
+	}
+}

OpenRA.Mods.Cnc/Graphics/Voxel.cs

@@ -11,25 +11,28 @@
 
 using System;
 using System.Linq;
-using OpenRA.FileFormats;
+using OpenRA.Graphics;
+using OpenRA.Mods.Cnc.FileFormats;
 
-namespace OpenRA.Graphics
+namespace OpenRA.Mods.Cnc.Graphics
 {
 	struct Limb
 	{
 		public float Scale;
 		public float[] Bounds;
 		public byte[] Size;
-		public VoxelRenderData RenderData;
+		public ModelRenderData RenderData;
 	}
 
-	public class Voxel
+	public class Voxel : IModel
 	{
-		Limb[] limbData;
-		float[] transforms;
+		readonly Limb[] limbData;
+		readonly float[] transforms;
+		readonly uint frames;
+		readonly uint limbs;
 
-		public readonly uint Frames;
-		public readonly uint Limbs;
+		uint IModel.Frames { get { return frames; } }
+		uint IModel.Sections { get { return limbs; } }
 
 		public Voxel(VoxelLoader loader, VxlReader vxl, HvaReader hva)
 		{
@@ -37,8 +40,8 @@ namespace OpenRA.Graphics
 				throw new InvalidOperationException("Voxel and hva limb counts don't match");
 
 			transforms = hva.Transforms;
-			Frames = hva.FrameCount;
-			Limbs = hva.LimbCount;
+			frames = hva.FrameCount;
+			limbs = hva.LimbCount;
 
 			limbData = new Limb[vxl.LimbCount];
 			for (var i = 0; i < vxl.LimbCount; i++)
@@ -55,14 +58,14 @@ namespace OpenRA.Graphics
 
 		public float[] TransformationMatrix(uint limb, uint frame)
 		{
-			if (frame >= Frames)
-				throw new ArgumentOutOfRangeException("frame", "Only {0} frames exist.".F(Frames));
-			if (limb >= Limbs)
-				throw new ArgumentOutOfRangeException("limb", "Only {1} limbs exist.".F(Limbs));
+			if (frame >= frames)
+				throw new ArgumentOutOfRangeException("frame", "Only {0} frames exist.".F(frames));
+			if (limb >= limbs)
+				throw new ArgumentOutOfRangeException("limb", "Only {1} limbs exist.".F(limbs));
 
 			var l = limbData[limb];
 			var t = new float[16];
-			Array.Copy(transforms, 16 * (Limbs * frame + limb), t, 0, 16);
+			Array.Copy(transforms, 16 * (limbs * frame + limb), t, 0, 16);
 
 			// Fix limb position
 			t[12] *= l.Scale * (l.Bounds[3] - l.Bounds[0]) / l.Size[0];
@@ -76,7 +79,7 @@ namespace OpenRA.Graphics
 			return t;
 		}
 
-		public VoxelRenderData RenderData(uint limb)
+		public ModelRenderData RenderData(uint limb)
 		{
 			return limbData[limb].RenderData;
 		}
@@ -100,7 +103,7 @@ namespace OpenRA.Graphics
 			var ret = new float[] { float.MaxValue, float.MaxValue, float.MaxValue,
 				float.MinValue, float.MinValue, float.MinValue };
 
-			for (uint j = 0; j < Limbs; j++)
+			for (uint j = 0; j < limbs; j++)
 			{
 				var l = limbData[j];
 				var b = new float[]

OpenRA.Mods.Cnc/Graphics/VoxelLoader.cs

@@ -13,26 +13,13 @@ using System;
 using System.Collections.Generic;
 using System.Drawing;
 using System.Linq;
-using OpenRA.FileFormats;
 using OpenRA.FileSystem;
+using OpenRA.Graphics;
+using OpenRA.Mods.Cnc.FileFormats;
 using OpenRA.Primitives;
 
-namespace OpenRA.Graphics
+namespace OpenRA.Mods.Cnc.Graphics
 {
-	public struct VoxelRenderData
-	{
-		public readonly int Start;
-		public readonly int Count;
-		public readonly Sheet Sheet;
-
-		public VoxelRenderData(int start, int count, Sheet sheet)
-		{
-			Start = start;
-			Count = count;
-			Sheet = sheet;
-		}
-	}
-
 	public sealed class VoxelLoader : IDisposable
 	{
 		static readonly float[] ChannelSelect = { 0.75f, 0.25f, -0.25f, -0.75f };
@@ -182,7 +169,7 @@ namespace OpenRA.Graphics
 						(u, v) => new float3(u, v, z));
 		}
 
-		public VoxelRenderData GenerateRenderData(VxlLimb l)
+		public ModelRenderData GenerateRenderData(VxlLimb l)
 		{
 			Vertex[] v;
 			try
@@ -203,14 +190,14 @@ namespace OpenRA.Graphics
 			var start = totalVertexCount;
 			var count = v.Length;
 			totalVertexCount += count;
-			return new VoxelRenderData(start, count, sheetBuilder.Current);
+			return new ModelRenderData(start, count, sheetBuilder.Current);
 		}
 
 		public void RefreshBuffer()
 		{
 			if (vertexBuffer != null)
 				vertexBuffer.Dispose();
-			vertexBuffer = Game.Renderer.Device.CreateVertexBuffer(totalVertexCount);
+			vertexBuffer = Game.Renderer.CreateVertexBuffer(totalVertexCount);
 			vertexBuffer.SetData(vertices.SelectMany(v => v).ToArray(), totalVertexCount);
 			cachedVertexCount = totalVertexCount;
 		}

OpenRA.Mods.Cnc/Graphics/VoxelModelSequenceLoader.cs

@@ -0,0 +1,119 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2017 The OpenRA Developers (see AUTHORS)
+ * This file is part of OpenRA, which is free software. It is made
+ * available to you under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version. For more
+ * information, see COPYING.
+ */
+#endregion
+
+using System;
+using System.Collections.Generic;
+using System.IO;
+using OpenRA.FileSystem;
+using OpenRA.Graphics;
+
+namespace OpenRA.Mods.Cnc.Graphics
+{
+	public class VoxelModelSequenceLoader : IModelSequenceLoader
+	{
+		public Action<string> OnMissingModelError { get; set; }
+
+		public VoxelModelSequenceLoader(ModData modData) { }
+
+		public IModelCache CacheModels(IReadOnlyFileSystem fileSystem, ModData modData, IReadOnlyDictionary<string, MiniYamlNode> modelSequences)
+		{
+			var cache = new VoxelModelCache(fileSystem);
+			foreach (var kv in modelSequences)
+			{
+				modData.LoadScreen.Display();
+				try
+				{
+					cache.CacheModel(kv.Key, kv.Value.Value);
+				}
+				catch (FileNotFoundException ex)
+				{
+					Console.WriteLine(ex);
+
+					// Eat the FileNotFound exceptions from missing sprites
+					OnMissingModelError(ex.Message);
+				}
+			}
+
+			cache.LoadComplete();
+
+			return cache;
+		}
+	}
+
+	public class VoxelModelCache : IModelCache
+	{
+		readonly VoxelLoader loader;
+		readonly Dictionary<string, Dictionary<string, IModel>> models = new Dictionary<string, Dictionary<string, IModel>>();
+
+		public VoxelModelCache(IReadOnlyFileSystem fileSystem)
+		{
+			loader = new VoxelLoader(fileSystem);
+		}
+
+		public void CacheModel(string model, MiniYaml definition)
+		{
+			models.Add(model, definition.ToDictionary(my => LoadVoxel(model, my)));
+		}
+
+		public void LoadComplete()
+		{
+			loader.RefreshBuffer();
+			loader.Finish();
+		}
+
+		IModel LoadVoxel(string unit, MiniYaml info)
+		{
+			var vxl = unit;
+			var hva = unit;
+			if (info.Value != null)
+			{
+				var fields = info.Value.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
+				if (fields.Length >= 1)
+					vxl = hva = fields[0].Trim();
+
+				if (fields.Length >= 2)
+					hva = fields[1].Trim();
+			}
+
+			return loader.Load(vxl, hva);
+		}
+
+		public IModel GetModelSequence(string model, string sequence)
+		{
+			try { return models[model][sequence]; }
+			catch (KeyNotFoundException)
+			{
+				if (models.ContainsKey(model))
+					throw new InvalidOperationException(
+						"Model `{0}` does not have a sequence `{1}`".F(model, sequence));
+				else
+					throw new InvalidOperationException(
+						"Model `{0}` does not have any sequences defined.".F(model));
+			}
+		}
+
+		public bool HasModelSequence(string model, string sequence)
+		{
+			if (!models.ContainsKey(model))
+				throw new InvalidOperationException(
+					"Model `{0}` does not have any sequences defined.".F(model));
+
+			return models[model].ContainsKey(sequence);
+		}
+
+		public IVertexBuffer<Vertex> VertexBuffer { get { return loader.VertexBuffer; } }
+
+		public void Dispose()
+		{
+			loader.Dispose();
+		}
+	}
+}

OpenRA.Mods.Cnc/OpenRA.Mods.Cnc.csproj

@@ -72,11 +72,12 @@
     <Compile Include="Traits\Render\WithReloadingSpriteTurret.cs" />
     <Compile Include="Traits\Render\WithRoof.cs" />
     <Compile Include="Traits\SupportPowers\IonCannonPower.cs" />
-    <Compile Include="ImportTiberianDawnLegacyMapCommand.cs" />
+    <Compile Include="UtilityCommands\ImportTiberianDawnLegacyMapCommand.cs" />
     <Compile Include="Projectiles\IonCannon.cs" />
     <Compile Include="Activities\VoxelHarvesterDockSequence.cs" />
     <Compile Include="SpriteLoaders\TmpTSLoader.cs" />
     <Compile Include="Traits\Buildings\TiberianSunRefinery.cs" />
+    <Compile Include="Traits\Render\WithBuildingBib.cs" />
     <Compile Include="Traits\Render\WithDockingOverlay.cs" />
     <Compile Include="Traits\Render\WithPermanentInjury.cs" />
     <Compile Include="Traits\Render\WithVoxelWalkerBody.cs" />
@@ -109,6 +110,7 @@
     <Compile Include="Traits\Chronoshiftable.cs" />
     <Compile Include="Traits\Cloneable.cs" />
     <Compile Include="Traits\Disguise.cs" />
+    <Compile Include="Traits\EnergyWall.cs" />
     <Compile Include="Traits\FrozenUnderFogUpdatedByGps.cs" />
     <Compile Include="Traits\HarvesterHuskModifier.cs" />
     <Compile Include="Traits\Infiltration\InfiltrateForCash.cs" />
@@ -130,9 +132,28 @@
     <Compile Include="Traits\GpsWatcher.cs" />
     <Compile Include="Scripting\Properties\ChronosphereProperties.cs" />
     <Compile Include="Traits\Render\WithDisguisingInfantryBody.cs" />
-    <Compile Include="ImportRedAlertLegacyMapCommand.cs" />
+    <Compile Include="UtilityCommands\ImportRedAlertLegacyMapCommand.cs" />
     <Compile Include="Traits\Infiltration\InfiltrateForDecoration.cs" />
     <Compile Include="TraitsInterfaces.cs" />
+    <Compile Include="FileSystem\BagFile.cs" />
+    <Compile Include="FileSystem\BigFile.cs" />
+    <Compile Include="FileSystem\MixFile.cs" />
+    <Compile Include="FileSystem\PackageEntry.cs" />
+    <Compile Include="FileSystem\Pak.cs" />
+    <Compile Include="UtilityCommands\ListMixContentsCommand.cs" />
+    <Compile Include="FileFormats\Blowfish.cs" />
+    <Compile Include="FileFormats\BlowfishKeyProvider.cs" />
+    <Compile Include="FileFormats\IdxEntry.cs" />
+    <Compile Include="FileFormats\IdxReader.cs" />
+    <Compile Include="FileFormats\XccGlobalDatabase.cs" />
+    <Compile Include="FileFormats\XccLocalDatabase.cs" />
+    <Compile Include="FileFormats\CRC32.cs" />
+    <Compile Include="Graphics\VoxelModelSequenceLoader.cs" />
+    <Compile Include="Graphics\VoxelLoader.cs" />
+    <Compile Include="Graphics\Voxel.cs" />
+    <Compile Include="FileFormats\HvaReader.cs" />
+    <Compile Include="FileFormats\VxlReader.cs" />
+    <Compile Include="Traits\World\VoxelNormalsPalette.cs" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\OpenRA.Game\OpenRA.Game.csproj">
@@ -170,17 +191,17 @@
       SourceFiles="$(TargetPath)"
       DestinationFolder="$(SolutionDir)mods/common/"/>
     <!--
-        We need to copy OpenRA.Mods.Cnc.pdb (not `.dll.pdb`). This is only necessary on Windows.
-        Mono outputs a `.dll.mdb` so we can just append `.mdb` directly.
+      csc generates .pdb symbol files (not `.dll.pdb`).
+      mcs generates .dll.mdb symbol files.
     -->
     <Copy
       SourceFiles="$(TargetDir)$(TargetName).pdb"
       DestinationFolder="$(SolutionDir)mods/common/"
-      Condition="'$(OS)' == 'Windows_NT'"/>
+      Condition="Exists('$(TargetDir)$(TargetName).pdb')"/>
     <Copy
       SourceFiles="$(TargetPath).mdb"
       DestinationFolder="$(SolutionDir)mods/common/"
-      Condition="'$(OS)' == 'Unix'"/>
+      Condition="Exists('$(TargetPath).mdb')"/>
     <!-- Uncomment these lines when debugging or adding to this target
     <Message Text="DEBUG OS:                     $(OS)"/>
     <Message Text="DEBUG SolutionDir:            $(SolutionDir)"/>

OpenRA.Mods.Cnc/Projectiles/TeslaZap.cs

@@ -32,46 +32,48 @@ namespace OpenRA.Mods.Cnc.Projectiles
 
 		public readonly int Duration = 2;
 
+		public readonly int DamageDuration = 1;
+
+		public readonly bool TrackTarget = true;
+
 		public IProjectile Create(ProjectileArgs args) { return new TeslaZap(this, args); }
 	}
 
-	public class TeslaZap : IProjectile
+	public class TeslaZap : IProjectile, ISync
 	{
 		readonly ProjectileArgs args;
 		readonly TeslaZapInfo info;
 		TeslaZapRenderable zap;
-		int timeUntilRemove; // # of frames
-		bool doneDamage = false;
-		bool initialized = false;
+		int ticksUntilRemove;
+		int damageDuration;
+		[Sync] WPos target;
 
 		public TeslaZap(TeslaZapInfo info, ProjectileArgs args)
 		{
 			this.args = args;
 			this.info = info;
-			this.timeUntilRemove = info.Duration;
+			ticksUntilRemove = info.Duration;
+			damageDuration = info.DamageDuration > info.Duration ? info.Duration : info.DamageDuration;
+			target = args.PassiveTarget;
 		}
 
 		public void Tick(World world)
 		{
-			if (timeUntilRemove-- <= 0)
+			if (ticksUntilRemove-- <= 0)
 				world.AddFrameEndTask(w => w.Remove(this));
 
-			if (!doneDamage)
-			{
-				var pos = args.GuidedTarget.IsValidFor(args.SourceActor) ? args.GuidedTarget.CenterPosition : args.PassiveTarget;
-				args.Weapon.Impact(Target.FromPos(pos), args.SourceActor, args.DamageModifiers);
-				doneDamage = true;
-			}
+			// Zap tracks target
+			if (info.TrackTarget && args.GuidedTarget.IsValidFor(args.SourceActor))
+				target = args.Weapon.TargetActorCenter ? args.GuidedTarget.CenterPosition : args.GuidedTarget.Positions.PositionClosestTo(args.Source);
+
+			if (damageDuration-- > 0)
+				args.Weapon.Impact(Target.FromPos(target), args.SourceActor, args.DamageModifiers);
 		}
 
 		public IEnumerable<IRenderable> Render(WorldRenderer wr)
 		{
-			if (!initialized)
-			{
-				var pos = args.GuidedTarget.IsValidFor(args.SourceActor) ? args.GuidedTarget.CenterPosition : args.PassiveTarget;
-				zap = new TeslaZapRenderable(args.Source, 0, pos - args.Source,
-					info.Image, info.BrightSequence, info.BrightZaps, info.DimSequence, info.DimZaps, info.Palette);
-			}
+			zap = new TeslaZapRenderable(args.Source, 0, target - args.Source,
+				info.Image, info.BrightSequence, info.BrightZaps, info.DimSequence, info.DimZaps, info.Palette);
 
 			yield return zap;
 		}

OpenRA.Mods.Cnc/Traits/Attack/AttackTesla.cs

@@ -17,7 +17,7 @@ using OpenRA.Traits;
 namespace OpenRA.Mods.Cnc.Traits
 {
 	[Desc("Implements the charge-then-burst attack logic specific to the RA tesla coil.")]
-	class AttackTeslaInfo : AttackOmniInfo
+	class AttackTeslaInfo : AttackBaseInfo
 	{
 		[Desc("How many charges this actor has to attack with, once charged.")]
 		public readonly int MaxCharges = 1;
@@ -37,7 +37,7 @@ namespace OpenRA.Mods.Cnc.Traits
 		public override object Create(ActorInitializer init) { return new AttackTesla(init.Self, this); }
 	}
 
-	class AttackTesla : AttackOmni, ITick, INotifyAttack
+	class AttackTesla : AttackBase, ITick, INotifyAttack
 	{
 		readonly AttackTeslaInfo info;
 

OpenRA.Mods.Cnc/Traits/AttackPopupTurreted.cs

@@ -62,7 +62,7 @@ namespace OpenRA.Mods.Cnc.Traits
 
 		protected override bool CanAttack(Actor self, Target target)
 		{
-			if (state == PopupState.Transitioning || !building.Value.BuildComplete)
+			if (state == PopupState.Transitioning || !building.BuildComplete)
 				return false;
 
 			if (!base.CanAttack(self, target))