Use ULFO format for non-compat disk images (requires macOS 10.11+).

This reverts commit 1a63cc4a41.

.github/workflows/ci.yaml

@@ -0,0 +1,55 @@
+name: Continuous Integration
+
+on:
+  push:
+  pull_request:
+    branches: [ bleed ]
+
+jobs:
+  linux-mono:
+    name: Linux (mono)
+    runs-on: ubuntu-20.04
+
+    steps:
+      - name: Clone Repository
+        uses: actions/checkout@v2
+
+      - name: Check Code
+        run: |
+          mono --version
+          make check
+
+      - name: Check Mods
+        run: |
+          sudo apt-get install lua5.1
+          make check-scripts
+          make test
+
+  windows:
+    name: Windows (Net 5.0)
+    runs-on: windows-2019
+
+    steps:
+      - name: Clone Repository
+        uses: actions/checkout@v2
+
+      - name: Install .NET 5
+        uses: actions/setup-dotnet@v1
+        with:
+          dotnet-version: '5.0.x'
+
+      - name: Check Code
+        shell: powershell
+        run: |
+          # Work around runtime failures on the GH Actions runner
+          dotnet nuget locals all --clear
+          .\make.ps1 check
+          dotnet build OpenRA.Test\OpenRA.Test.csproj -c Debug --nologo -p:TargetPlatform=win-x64
+          dotnet test bin\OpenRA.Test.dll --test-adapter-path:.
+
+      - name: Check Mods
+        run: |
+          chocolatey install lua --version 5.1.5.52
+          $ENV:Path = $ENV:Path + ";C:\Program Files (x86)\Lua\5.1\"
+          .\make.ps1 check-scripts
+          .\make.ps1 test

.github/workflows/documentation.yml

@@ -0,0 +1,107 @@
+name: Deploy Documentation
+
+on:
+  workflow_dispatch:
+    inputs:
+      tag:
+        description: 'Git Tag'
+        required: true
+        default: 'release-xxxxxxxx'
+
+jobs:
+  wiki:
+    name: Update Wiki
+    if: github.repository == 'openra/openra'
+    runs-on: ubuntu-20.04
+    steps:
+      - name: Clone Repository
+        uses: actions/checkout@v2
+        with:
+          ref: ${{ github.event.inputs.tag }}
+
+      - name: Prepare Environment
+        run: |
+          make all
+
+      - name: Clone Wiki
+        uses: actions/checkout@v2
+        with:
+          repository: openra/openra.wiki
+          token: ${{ secrets.DOCS_TOKEN }}
+          path: wiki
+
+      - name: Update Wiki (Playtest)
+        if: startsWith(github.event.inputs.tag, 'playtest-')
+        env:
+          GIT_TAG: ${{ github.event.inputs.tag }}
+        run: |
+          ./utility.sh all --settings-docs "${GIT_TAG}" > "wiki/Settings (playtest).md"
+
+      - name: Update Wiki (Release)
+        if: startsWith(github.event.inputs.tag, 'release-')
+        env:
+          GIT_TAG: ${{ github.event.inputs.tag }}
+        run: |
+          ./utility.sh all --settings-docs "${GIT_TAG}" > "wiki/Settings.md"
+
+      - name: Push Wiki
+        env:
+          GIT_TAG: ${{ github.event.inputs.tag }}
+        run: |
+          cd wiki
+          git config --local user.email "actions@github.com"
+          git config --local user.name "GitHub Actions"
+          git add --all
+          git commit -m "Update auto-generated documentation for ${GIT_TAG}"
+          git push origin master
+
+  docs:
+    name: Update docs.openra.net
+    if: github.repository == 'openra/openra'
+    runs-on: ubuntu-20.04
+    steps:
+      - name: Clone Repository
+        uses: actions/checkout@v2
+        with:
+          ref: ${{ github.event.inputs.tag }}
+
+      - name: Prepare Environment
+        run: |
+          make all
+
+      - name: Clone docs.openra.net
+        uses: actions/checkout@v2
+        with:
+          repository: openra/docs
+          token: ${{ secrets.DOCS_TOKEN }}
+          path: docs
+
+      - name: Update docs.openra.net (Playtest)
+        if: startsWith(github.event.inputs.tag, 'playtest-')
+        env:
+          GIT_TAG: ${{ github.event.inputs.tag }}
+        run: |
+          ./utility.sh all --docs "${GIT_TAG}" > "docs/api/playtest/traits.md"
+          ./utility.sh all --weapon-docs "${GIT_TAG}" > "docs/api/playtest/weapons.md"
+          ./utility.sh all --lua-docs "${GIT_TAG}" > "docs/api/playtest/lua.md"
+
+      - name: Update docs.openra.net (Release)
+        if: startsWith(github.event.inputs.tag, 'release-')
+        env:
+          GIT_TAG: ${{ github.event.inputs.tag }}
+        run: |
+          ./utility.sh all --docs "${GIT_TAG}" > "docs/api/release/traits.md"
+          ./utility.sh all --weapon-docs "${GIT_TAG}" > "docs/api/release/weapons.md"
+          ./utility.sh all --lua-docs "${GIT_TAG}" > "docs/api/release/lua.md"
+
+      - name: Push docs.openra.net
+        env:
+          GIT_TAG: ${{ github.event.inputs.tag }}
+        run: |
+          cd docs
+          git config --local user.email "actions@github.com"
+          git config --local user.name "GitHub Actions"
+          git add --all
+          git commit -m "Update auto-generated documentation for ${GIT_TAG}"
+          git push origin master
+

.github/workflows/itch.yml

@@ -0,0 +1,88 @@
+name: Deploy itch.io Packages
+
+on:
+  workflow_dispatch:
+    inputs:
+      tag:
+        description: 'Git Tag'
+        required: true
+        default: 'release-xxxxxxxx'
+
+jobs:
+  itch:
+    name: Deploy to itch.io
+    runs-on: ubuntu-20.04
+    if: github.repository == 'openra/openra'
+    steps:
+      - name: Download Packages
+        env:
+          GIT_TAG: ${{ github.event.inputs.tag }}
+        run: |
+          wget -q "https://github.com/${{ github.repository }}/releases/download/${GIT_TAG}/OpenRA-${GIT_TAG}-x64.exe"
+          wget -q "https://github.com/${{ github.repository }}/releases/download/${GIT_TAG}/OpenRA-${GIT_TAG}-x64-winportable.zip" -O "OpenRA-${GIT_TAG}-x64-win-itch.zip"
+          wget -q "https://github.com${{ github.repository }}/releases/download/${GIT_TAG}/OpenRA-${GIT_TAG}.dmg"
+          wget -q "https://github.com/${{ github.repository }}/releases/download/${GIT_TAG}/OpenRA-Dune-2000-x86_64.AppImage"
+          wget -q "https://github.com/${{ github.repository }}/releases/download/${GIT_TAG}/OpenRA-Red-Alert-x86_64.AppImage"
+          wget -q "https://github.com/${{ github.repository }}/releases/download/${GIT_TAG}/OpenRA-Tiberian-Dawn-x86_64.AppImage"
+          wget -q "https://raw.githubusercontent.com/${{ github.repository }}/${GIT_TAG}/packaging/.itch.toml"
+          zip -u "OpenRA-${GIT_TAG}-x64-win-itch.zip" .itch.toml
+
+      - name: Publish Windows Installer
+        uses: josephbmanley/butler-publish-itchio-action@master
+        env:
+          BUTLER_CREDENTIALS: ${{ secrets.BUTLER_CREDENTIALS }}
+          CHANNEL: win
+          ITCH_GAME: openra
+          ITCH_USER: openra-developers
+          VERSION: ${{ github.event.inputs.tag }}
+          PACKAGE: OpenRA-${{ github.event.inputs.tag }}}-x64.exe"
+
+      - name: Publish Windows Itch Bundle
+        uses: josephbmanley/butler-publish-itchio-action@master
+        env:
+          BUTLER_CREDENTIALS: ${{ secrets.BUTLER_CREDENTIALS }}
+          CHANNEL: itch
+          ITCH_GAME: openra
+          ITCH_USER: openra-developers
+          VERSION: ${{ github.event.inputs.tag }}
+          PACKAGE: OpenRA-${{ github.event.inputs.tag }}-x64-win-itch.zip
+
+      - name: Publish macOS Package
+        uses: josephbmanley/butler-publish-itchio-action@master
+        env:
+          BUTLER_CREDENTIALS: ${{ secrets.BUTLER_CREDENTIALS }}
+          CHANNEL: macos
+          ITCH_GAME: openra
+          ITCH_USER: openra-developers
+          VERSION: ${{ github.event.inputs.tag }}
+          PACKAGE: OpenRA-${{ github.event.inputs.tag }}}.dmg"
+
+      - name: Publish RA AppImage
+        uses: josephbmanley/butler-publish-itchio-action@master
+        env:
+          BUTLER_CREDENTIALS: ${{ secrets.BUTLER_CREDENTIALS }}
+          CHANNEL: linux-ra
+          ITCH_GAME: openra
+          ITCH_USER: openra-developers
+          VERSION: ${{ github.event.inputs.tag }}
+          PACKAGE: OpenRA-Red-Alert-x86_64.AppImage
+
+      - name: Publish TD AppImage
+        uses: josephbmanley/butler-publish-itchio-action@master
+        env:
+          BUTLER_CREDENTIALS: ${{ secrets.BUTLER_CREDENTIALS }}
+          CHANNEL: linux-cnc
+          ITCH_GAME: openra
+          ITCH_USER: openra-developers
+          VERSION: ${{ github.event.inputs.tag }}
+          PACKAGE: OpenRA-Tiberian-Dawn-x86_64.AppImage
+
+      - name: Publish D2k AppImage
+        uses: josephbmanley/butler-publish-itchio-action@master
+        env:
+          BUTLER_CREDENTIALS: ${{ secrets.BUTLER_CREDENTIALS }}
+          CHANNEL: linux-d2k
+          ITCH_GAME: openra
+          ITCH_USER: openra-developers
+          VERSION: ${{ github.event.inputs.tag }}
+          PACKAGE: OpenRA-Dune-2000-x86_64.AppImage

.github/workflows/packaging.yml

@@ -0,0 +1,99 @@
+name: Release Packaging
+
+on:
+  push:
+    tags:
+    - 'release-*'
+    - 'playtest-*'
+    - 'devtest-*'
+
+jobs:
+  linux:
+    name: Linux AppImages
+    runs-on: ubuntu-20.04
+    steps:
+      - name: Clone Repository
+        uses: actions/checkout@v2
+
+      - name: Prepare Environment
+        run: echo "GIT_TAG=${GITHUB_REF#refs/tags/}" >> ${GITHUB_ENV}
+
+      - name: Package AppImages
+        run: |
+          mkdir -p build/linux
+          ./packaging/linux/buildpackage.sh "${GIT_TAG}" "${PWD}/build/linux"
+
+      - name: Upload Packages
+        uses: svenstaro/upload-release-action@v2
+        with:
+          repo_token: ${{ secrets.GITHUB_TOKEN }}
+          tag: ${{ github.ref }}
+          overwrite: true
+          file_glob: true
+          file: build/linux/*
+
+  macos:
+    name: macOS Disk Images
+    runs-on: macos-10.15
+    steps:
+      - name: Clone Repository
+        uses: actions/checkout@v2
+
+      - name: Install .NET 5
+        uses: actions/setup-dotnet@v1
+        with:
+          dotnet-version: '5.0.x'
+
+      - name: Prepare Environment
+        run: echo "GIT_TAG=${GITHUB_REF#refs/tags/}" >> ${GITHUB_ENV}
+
+      - name: Package Disk Images
+        env:
+          MACOS_DEVELOPER_IDENTITY: ${{ secrets.MACOS_DEVELOPER_IDENTITY }}
+          MACOS_DEVELOPER_CERTIFICATE_BASE64: ${{ secrets.MACOS_DEVELOPER_CERTIFICATE_BASE64 }}
+          MACOS_DEVELOPER_CERTIFICATE_PASSWORD: ${{ secrets.MACOS_DEVELOPER_CERTIFICATE_PASSWORD }}
+          MACOS_DEVELOPER_USERNAME: ${{ secrets.MACOS_DEVELOPER_USERNAME }}
+          MACOS_DEVELOPER_PASSWORD: ${{ secrets.MACOS_DEVELOPER_PASSWORD }}
+        run: |
+          mkdir -p build/macos
+          ./packaging/macos/buildpackage.sh "${GIT_TAG}" "${PWD}/build/macos"
+
+      - name: Upload Packages
+        uses: svenstaro/upload-release-action@v2
+        with:
+          repo_token: ${{ secrets.GITHUB_TOKEN }}
+          tag: ${{ github.ref }}
+          overwrite: true
+          file_glob: true
+          file: build/macos/*
+
+  windows:
+    name: Windows Installers
+    runs-on: ubuntu-20.04
+    steps:
+      - name: Clone Repository
+        uses: actions/checkout@v2
+
+      - name: Install .NET 5
+        uses: actions/setup-dotnet@v1
+        with:
+          dotnet-version: '5.0.x'
+
+      - name: Prepare Environment
+        run: |
+          echo "GIT_TAG=${GITHUB_REF#refs/tags/}" >> ${GITHUB_ENV}
+          sudo apt install nsis wine64
+
+      - name: Package Installers
+        run: |
+          mkdir -p build/windows
+          ./packaging/windows/buildpackage.sh "${GIT_TAG}" "${PWD}/build/windows"
+
+      - name: Upload Packages
+        uses: svenstaro/upload-release-action@v2
+        with:
+          repo_token: ${{ secrets.GITHUB_TOKEN }}
+          tag: ${{ github.ref }}
+          overwrite: true
+          file_glob: true
+          file: build/windows/*

.travis.yml

@@ -1,92 +0,0 @@
-# Travis-CI Build for OpenRA
-# see travis-ci.org for details
-
-language: csharp
-mono: 6.4.0
-os: linux
-dist: xenial
-
-jobs:
-  include:
-    - os: linux
-      dist: xenial
-    - os: osx
-      if: tag IS present
-      osx_image: xcode10
-
-addons:
-  apt:
-    packages:
-    - lua5.1
-    - dpkg
-    - zsync
-    - imagemagick
-
-# Environment variables
-env:
-  secure: "C0+Hlfa0YGErxUuWV00Tj6p45otC/D3YwYFuLpi2mj1rDFn/4dgh5WRngjvdDBVbXJ3duaZ78jPHWm1jr7vn2jqj9yETsCIK9psWd38ep/FEBM0SDr6MUD89OuXk/YyvxJAE+UXF6bXg7giey09g/CwBigjMW7ynET3wNAWPHPs="
-
-# Fetch dependencies
-# Run the build script
-# Check source code with StyleCop
-# call OpenRA to check for YAML errors
-# Run the NUnit tests
-script:
- - make all
- - |
-   if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then
-      make check || travis_terminate 1;
-      make check-scripts || travis_terminate 1;
-      make test || travis_terminate 1;
-      mono ~/.nuget/packages/nunit.consolerunner/3.11.1/tools/nunit3-console.exe --noresult bin/OpenRA.Test.dll || travis_terminate 1;
-   fi
-
-# Only watch the development branch and tagged release.
-branches:
- only:
-   - /^release-.*$/
-   - /^playtest-.*$/
-   - /^devtest-.*$/
-   - /^prep-.*$/
-   - bleed
-
-# Notify developers when build passed/failed.
-notifications:
-  irc:
-    if: repo = OpenRA/OpenRA
-    template:
-      - "%{repository}#%{build_number} %{commit} %{author}: %{message} %{build_url}"
-    channels:
-      - "irc.freenode.net#openra"
-    use_notice: true
-    skip_join: true
-
-before_deploy:
- - if [[ "${TRAVIS_OS_NAME}" == "linux" ]]; then
-     wget https://mirrors.edge.kernel.org/ubuntu/pool/universe/n/nsis/nsis-common_3.04-1_all.deb;
-     wget https://mirrors.edge.kernel.org/ubuntu/pool/universe/n/nsis/nsis_3.04-1_amd64.deb;
-     sudo dpkg -i nsis-common_3.04-1_all.deb;
-     sudo dpkg -i nsis_3.04-1_amd64.deb;
-     echo ${TRAVIS_REPO_SLUG};
-     if [[ "${TRAVIS_REPO_SLUG}" == "OpenRA/OpenRA" ]]; then
-       cd packaging && ./update-wiki.sh ${TRAVIS_TAG} && ./update-docs.sh ${TRAVIS_TAG} && cd ..;
-     fi;
-   fi
- - export PATH=${PATH}:${HOME}/usr/bin
- - DOTVERSION=`echo ${TRAVIS_TAG} | sed "s/-/\\./g"`
- - cd packaging
- - mkdir build
- - ./package-all.sh ${TRAVIS_TAG} ${PWD}/build/
- - if [[ "${TRAVIS_REPO_SLUG}" == "OpenRA/OpenRA" ]]; then
-     ./upload-itch.sh ${TRAVIS_TAG} ${PWD}/build/;
-   fi
-
-deploy:
-  provider: releases
-  token: ${GH_DEPLOY_API_KEY}
-  file_glob: true
-  file: build/*
-  skip_cleanup: true
-  on:
-    all_branches: true
-    tags: true

INSTALL.md

@@ -8,18 +8,16 @@ Windows
 
 Compiling OpenRA requires the following dependencies:
 * [Windows PowerShell >= 4.0](http://microsoft.com/powershell) (included by default in recent Windows 10 versions)
-* [.NET Framework 4.7.2 (Developer Pack)](https://dotnet.microsoft.com/download/dotnet-framework/net472) (or via Visual Studio 2017)
-* [.NET Core 2.2 SDK](https://dotnet.microsoft.com/download/dotnet-core/2.2) (or via Visual Studio 2017)
+* [.NET 5 SDK](https://dotnet.microsoft.com/download/dotnet/5.0) (or via Visual Studio)
 
-
-To compile OpenRA, open the `OpenRA.sln` solution in the main folder, build it from the command-line with MSBuild or use the Makefile analogue command `make all` scripted in PowerShell syntax.
+To compile OpenRA, open the `OpenRA.sln` solution in the main folder, build it from the command-line with `dotnet` or use the Makefile analogue command `make all` scripted in PowerShell syntax.
 
 Run the game with `launch-game.cmd`. It can be handed arguments that specify the exact mod one wishes to run, for example, run `launch-game.cmd Game.Mod=ra` to launch Red Alert, `launch-game.cmd Game.Mod=cnc` to start Tiberian dawn or `launch-game.cmd Game.Mod=d2k` to launch Dune 2000.
 
 Linux
 =====
 
-Mono, version 5.18 or later, is required to compile OpenRA. You can add the [upstream mono repository](https://www.mono-project.com/download/stable/#download-lin) for your distro to obtain the latest version if your system packages are not sufficient.
+Mono, version 6.4 or later, is required to compile OpenRA. You can add the [upstream mono repository](https://www.mono-project.com/download/stable/#download-lin) for your distro to obtain the latest version if your system packages are not sufficient.
 
 To compile OpenRA, run `make` from the command line. After this one can run the game with `./launch-game.sh`. It is also possible to specify the mod you wish to run from the command line, e.g. with `./launch-game.sh Game.Mod=ts` if you wish to try the experimental Tiberian Sun mod.
 
@@ -99,7 +97,7 @@ macOS
 =====
 
 Before compiling OpenRA you must install the following dependencies:
-* [Mono >= 5.18](https://www.mono-project.com/download/stable/#download-mac)
+* [Mono >= 6.4](https://www.mono-project.com/download/stable/#download-mac)
 
 To compile OpenRA, run `make` from the command line. Run with `./launch-game.sh`.
 

Makefile

@@ -28,14 +28,14 @@
 ############################## TOOLCHAIN ###############################
 #
 # List of .NET assemblies that we can guarantee exist
-WHITELISTED_OPENRA_ASSEMBLIES = OpenRA.exe OpenRA.Utility.exe OpenRA.Server.exe OpenRA.Platforms.Default.dll OpenRA.Game.dll OpenRA.Mods.Common.dll OpenRA.Mods.Cnc.dll OpenRA.Mods.D2k.dll
+WHITELISTED_OPENRA_ASSEMBLIES = OpenRA.dll OpenRA.Utility.dll OpenRA.Server.dll OpenRA.Platforms.Default.dll OpenRA.Game.dll OpenRA.Mods.Common.dll OpenRA.Mods.Cnc.dll OpenRA.Mods.D2k.dll
 
 # These are explicitly shipped alongside our core files by the packaging script
 WHITELISTED_THIRDPARTY_ASSEMBLIES = ICSharpCode.SharpZipLib.dll FuzzyLogicLibrary.dll Eluant.dll BeaconLib.dll Open.Nat.dll SDL2-CS.dll OpenAL-CS.Core.dll DiscordRPC.dll Newtonsoft.Json.dll
 
 # These are shipped in our custom minimal mono runtime and also available in the full system-installed .NET/mono stack
 # This list *must* be kept in sync with the files packaged by the AppImageSupport and OpenRALauncherOSX repositories
-WHITELISTED_CORE_ASSEMBLIES = mscorlib.dll System.dll System.Configuration.dll System.Core.dll System.Numerics.dll System.Security.dll System.Xml.dll Mono.Security.dll netstandard.dll
+WHITELISTED_CORE_ASSEMBLIES = mscorlib.dll System.dll System.Configuration.dll System.Core.dll System.Numerics.dll System.Security.dll System.Xml.dll Mono.Security.dll netstandard.dll Microsoft.Win32.Registry.dll System.Security.AccessControl.dll System.Security.Principal.Windows.dll System.Xml.Linq.dll System.Runtime.Serialization.dll
 
 ######################### UTILITIES/SETTINGS ###########################
 #
@@ -78,13 +78,13 @@ endif
 endif
 endif
 
-OPENRA_UTILITY = ENGINE_DIR=".." $(MONO) --debug bin/OpenRA.Utility.exe
+OPENRA_UTILITY = ENGINE_DIR=".." $(MONO) --debug bin/OpenRA.Utility.dll
 
 ##################### DEVELOPMENT BUILDS AND TESTS #####################
 #
 all:
 	@command -v $(firstword $(MSBUILD)) >/dev/null || (echo "OpenRA requires the '$(MSBUILD)' tool provided by Mono >= 5.18."; exit 1)
-	@$(MSBUILD) -t:Build -restore -p:Configuration=Release -p:TargetPlatform=$(TARGETPLATFORM)
+	@$(MSBUILD) -t:Build -restore -p:Configuration=Release -p:TargetPlatform=$(TARGETPLATFORM) -p:Mono=true -p:DefineConstants="MONO"
 ifeq ($(TARGETPLATFORM), unix-generic)
 	@./configure-system-libraries.sh
 endif
@@ -92,13 +92,13 @@ endif
 
 clean:
 	@-$(RM_RF) ./bin ./*/bin ./*/obj
-	@$(MSBUILD) -t:Clean
+	@$(MSBUILD) -t:Clean -p:Mono=true
 	@-$(RM_F) IP2LOCATION-LITE-DB1.IPV6.BIN.ZIP
 
 check:
 	@echo
 	@echo "Compiling in debug mode..."
-	@$(MSBUILD) -t:build -restore -p:Configuration=Debug
+	@$(MSBUILD) -t:build -restore -p:Configuration=Debug -p:TargetPlatform=$(TARGETPLATFORM) -p:Mono=true -p:DefineConstants="MONO"
 	@echo
 	@echo "Checking runtime assemblies..."
 	@$(OPENRA_UTILITY) all --check-runtime-assemblies $(WHITELISTED_OPENRA_ASSEMBLIES) $(WHITELISTED_THIRDPARTY_ASSEMBLIES) $(WHITELISTED_CORE_ASSEMBLIES)

OpenRA.Game/Game.cs

@@ -297,6 +297,7 @@ namespace OpenRA
 				EngineVersion = "Unknown";
 
 			Console.WriteLine("Engine version is {0}", EngineVersion);
+			Console.WriteLine("Runtime: {0}", Platform.RuntimeVersion);
 
 			// 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
@@ -329,9 +330,16 @@ namespace OpenRA
 				try
 				{
 					var rendererPath = Path.Combine(Platform.BinDir, "OpenRA.Platforms." + p + ".dll");
-					var assembly = Assembly.LoadFile(rendererPath);
 
+#if !MONO
+					var loader = new AssemblyLoader(rendererPath);
+					var platformType = loader.LoadDefaultAssembly().GetTypes().SingleOrDefault(t => typeof(IPlatform).IsAssignableFrom(t));
+
+#else
+					var assembly = Assembly.LoadFile(rendererPath);
 					var platformType = assembly.GetTypes().SingleOrDefault(t => typeof(IPlatform).IsAssignableFrom(t));
+#endif
+
 					if (platformType == null)
 						throw new InvalidOperationException("Platform dll must include exactly one IPlatform implementation.");
 
@@ -934,9 +942,11 @@ namespace OpenRA
 				AdvertiseOnline = false
 			};
 
+			// Always connect to local games using the same loopback connection
+			// Exposing multiple endpoints introduces a race condition on the client's PlayerIndex (sometimes 0, sometimes 1)
+			// This would break the Restart button, which relies on the PlayerIndex always being the same for local servers
 			var endpoints = new List<IPEndPoint>
 			{
-				new IPEndPoint(IPAddress.IPv6Loopback, 0),
 				new IPEndPoint(IPAddress.Loopback, 0)
 			};
 			server = new Server.Server(endpoints, settings, ModData, ServerType.Local);

OpenRA.Game/GameInformation.cs

@@ -119,6 +119,8 @@ namespace OpenRA
 				IsBot = runtimePlayer.IsBot,
 				FactionName = runtimePlayer.Faction.Name,
 				FactionId = runtimePlayer.Faction.InternalName,
+				DisplayFactionName = runtimePlayer.DisplayFaction.Name,
+				DisplayFactionId = runtimePlayer.DisplayFaction.InternalName,
 				Color = runtimePlayer.Color,
 				Team = client.Team,
 				SpawnPoint = runtimePlayer.SpawnPoint,
@@ -157,6 +159,10 @@ namespace OpenRA
 			public string FactionId;
 			public Color Color;
 
+			/// <summary>The faction (including Random, etc.) that was selected in the lobby.</summary>
+			public string DisplayFactionName;
+			public string DisplayFactionId;
+
 			/// <summary>The team ID on start-up, or 0 if the player is not part of a team.</summary>
 			public int Team;
 			public int SpawnPoint;

OpenRA.Game/Graphics/Theater.cs

@@ -168,10 +168,7 @@ namespace OpenRA.Graphics
 				for (var x = 0; x < template.Size.X; x++)
 				{
 					var tile = new TerrainTile(template.Id, (byte)(i++));
-					var tileInfo = tileset.GetTileInfo(tile);
-
-					// Empty tile
-					if (tileInfo == null)
+					if (!tileset.TryGetTileInfo(tile, out var tileInfo))
 						continue;
 
 					var sprite = TileSprite(tile);

OpenRA.Game/Map/Map.cs

@@ -206,6 +206,8 @@ namespace OpenRA
 		public readonly MiniYaml NotificationDefinitions;
 		public readonly MiniYaml TranslationDefinitions;
 
+		public readonly Dictionary<CPos, TerrainTile> ReplacedInvalidTerrainTiles = new Dictionary<CPos, TerrainTile>();
+
 		// Generated data
 		public readonly MapGrid Grid;
 		public IReadOnlyPackage Package { get; private set; }
@@ -287,7 +289,6 @@ namespace OpenRA
 			this.modData = modData;
 			var size = new Size(width, height);
 			Grid = modData.Manifest.Get<MapGrid>();
-			var tileRef = new TerrainTile(tileset.Templates.First().Key, 0);
 
 			Title = "Name your map here";
 			Author = "Your name here";
@@ -310,7 +311,7 @@ namespace OpenRA
 				Tiles.CellEntryChanged += UpdateRamp;
 			}
 
-			Tiles.Clear(tileRef);
+			Tiles.Clear(tileset.DefaultTerrainTile);
 
 			PostInit();
 		}
@@ -430,12 +431,18 @@ namespace OpenRA
 			foreach (var uv in AllCells.MapCoords)
 				CustomTerrain[uv] = byte.MaxValue;
 
-			// Cache initial ramp state
+			// Replace invalid tiles and cache ramp state
 			var tileset = Rules.TileSet;
-			foreach (var uv in AllCells)
+			foreach (var uv in AllCells.MapCoords)
 			{
-				var tile = tileset.GetTileInfo(Tiles[uv]);
-				Ramp[uv] = tile != null ? tile.RampType : (byte)0;
+				if (!tileset.TryGetTileInfo(Tiles[uv], out var info))
+				{
+					ReplacedInvalidTerrainTiles[uv.ToCPos(this)] = Tiles[uv];
+					Tiles[uv] = tileset.DefaultTerrainTile;
+					info = tileset.GetTileInfo(tileset.DefaultTerrainTile);
+				}
+
+				Ramp[uv] = info.RampType;
 			}
 
 			AllEdgeCells = UpdateEdgeCells();
@@ -443,8 +450,7 @@ namespace OpenRA
 
 		void UpdateRamp(CPos cell)
 		{
-			var tile = Rules.TileSet.GetTileInfo(Tiles[cell]);
-			Ramp[cell] = tile != null ? tile.RampType : (byte)0;
+			Ramp[cell] = Rules.TileSet.GetTileInfo(Tiles[cell]).RampType;
 		}
 
 		void InitializeCellProjection()
@@ -670,32 +676,26 @@ namespace OpenRA
 			Color left, right;
 			var tileset = Rules.TileSet;
 			var type = tileset.GetTileInfo(Tiles[uv]);
-			if (type != null)
+			if (type.MinColor != type.MaxColor)
 			{
-				if (type.MinColor != type.MaxColor)
-				{
-					left = Exts.ColorLerp(Game.CosmeticRandom.NextFloat(), type.MinColor, type.MaxColor);
-					right = Exts.ColorLerp(Game.CosmeticRandom.NextFloat(), type.MinColor, type.MaxColor);
-				}
-				else
-					left = right = type.MinColor;
-
-				if (tileset.MinHeightColorBrightness != 1.0f || tileset.MaxHeightColorBrightness != 1.0f)
-				{
-					var scale = float2.Lerp(tileset.MinHeightColorBrightness, tileset.MaxHeightColorBrightness, Height[uv] * 1f / Grid.MaximumTerrainHeight);
-					left = Color.FromArgb((int)(scale * left.R).Clamp(0, 255), (int)(scale * left.G).Clamp(0, 255), (int)(scale * left.B).Clamp(0, 255));
-					right = Color.FromArgb((int)(scale * right.R).Clamp(0, 255), (int)(scale * right.G).Clamp(0, 255), (int)(scale * right.B).Clamp(0, 255));
-				}
+				left = Exts.ColorLerp(Game.CosmeticRandom.NextFloat(), type.MinColor, type.MaxColor);
+				right = Exts.ColorLerp(Game.CosmeticRandom.NextFloat(), type.MinColor, type.MaxColor);
 			}
 			else
-				left = right = Color.Black;
+				left = right = type.MinColor;
+
+			if (tileset.MinHeightColorBrightness != 1.0f || tileset.MaxHeightColorBrightness != 1.0f)
+			{
+				var scale = float2.Lerp(tileset.MinHeightColorBrightness, tileset.MaxHeightColorBrightness, Height[uv] * 1f / Grid.MaximumTerrainHeight);
+				left = Color.FromArgb((int)(scale * left.R).Clamp(0, 255), (int)(scale * left.G).Clamp(0, 255), (int)(scale * left.B).Clamp(0, 255));
+				right = Color.FromArgb((int)(scale * right.R).Clamp(0, 255), (int)(scale * right.G).Clamp(0, 255), (int)(scale * right.B).Clamp(0, 255));
+			}
 
 			return (left, right);
 		}
 
 		public byte[] SavePreview()
 		{
-			var tileset = Rules.TileSet;
 			var actorTypes = Rules.Actors.Values.Where(a => a.HasTraitInfo<IMapPreviewSignatureInfo>());
 			var actors = ActorDefinitions.Where(a => actorTypes.Where(ai => ai.Name == a.Value.Value).Any());
 			var positions = new List<(MPos Position, Color Color)>();
@@ -715,76 +715,73 @@ namespace OpenRA
 			foreach (var worldimpsi in worldimpsis)
 				worldimpsi.PopulateMapPreviewSignatureCells(this, worldActorInfo, null, positions);
 
-			using (var stream = new MemoryStream())
+			var isRectangularIsometric = Grid.Type == MapGridType.RectangularIsometric;
+
+			// Fudge the heightmap offset by adding as much extra as we need / can.
+			// This tries to correct for our incorrect assumption that MPos == PPos
+			var heightOffset = Math.Min(Grid.MaximumTerrainHeight, MapSize.Y - Bounds.Bottom);
+			var width = Bounds.Width;
+			var height = Bounds.Height + heightOffset;
+
+			var bitmapWidth = width;
+			if (isRectangularIsometric)
+				bitmapWidth = 2 * bitmapWidth - 1;
+
+			var stride = bitmapWidth * 4;
+			var pxStride = 4;
+			var minimapData = new byte[stride * height];
+			(Color Left, Color Right) terrainColor = default((Color, Color));
+
+			for (var y = 0; y < height; y++)
 			{
-				var isRectangularIsometric = Grid.Type == MapGridType.RectangularIsometric;
-
-				// Fudge the heightmap offset by adding as much extra as we need / can.
-				// This tries to correct for our incorrect assumption that MPos == PPos
-				var heightOffset = Math.Min(Grid.MaximumTerrainHeight, MapSize.Y - Bounds.Bottom);
-				var width = Bounds.Width;
-				var height = Bounds.Height + heightOffset;
-
-				var bitmapWidth = width;
-				if (isRectangularIsometric)
-					bitmapWidth = 2 * bitmapWidth - 1;
-
-				var stride = bitmapWidth * 4;
-				var pxStride = 4;
-				var minimapData = new byte[stride * height];
-				(Color Left, Color Right) terrainColor = default((Color, Color));
-
-				for (var y = 0; y < height; y++)
+				for (var x = 0; x < width; x++)
 				{
-					for (var x = 0; x < width; x++)
+					var uv = new MPos(x + Bounds.Left, y + Bounds.Top);
+
+					// FirstOrDefault will return a (MPos.Zero, Color.Transparent) if positions is empty
+					var actorColor = positions.FirstOrDefault(ap => ap.Position == uv).Color;
+					if (actorColor.A == 0)
+						terrainColor = GetTerrainColorPair(uv);
+
+					if (isRectangularIsometric)
 					{
-						var uv = new MPos(x + Bounds.Left, y + Bounds.Top);
-
-						// FirstOrDefault will return a (MPos.Zero, Color.Transparent) if positions is empty
-						var actorColor = positions.FirstOrDefault(ap => ap.Position == uv).Color;
-						if (actorColor.A == 0)
-							terrainColor = GetTerrainColorPair(uv);
-
-						if (isRectangularIsometric)
+						// Odd rows are shifted right by 1px
+						var dx = uv.V & 1;
+						var xOffset = pxStride * (2 * x + dx);
+						if (x + dx > 0)
 						{
-							// Odd rows are shifted right by 1px
-							var dx = uv.V & 1;
-							var xOffset = pxStride * (2 * x + dx);
-							if (x + dx > 0)
-							{
-								var z = y * stride + xOffset - pxStride;
-								var c = actorColor.A == 0 ? terrainColor.Left : actorColor;
-								minimapData[z++] = c.R;
-								minimapData[z++] = c.G;
-								minimapData[z++] = c.B;
-								minimapData[z] = c.A;
-							}
-
-							if (xOffset < stride)
-							{
-								var z = y * stride + xOffset;
-								var c = actorColor.A == 0 ? terrainColor.Right : actorColor;
-								minimapData[z++] = c.R;
-								minimapData[z++] = c.G;
-								minimapData[z++] = c.B;
-								minimapData[z] = c.A;
-							}
-						}
-						else
-						{
-							var z = y * stride + pxStride * x;
+							var z = y * stride + xOffset - pxStride;
 							var c = actorColor.A == 0 ? terrainColor.Left : actorColor;
 							minimapData[z++] = c.R;
 							minimapData[z++] = c.G;
 							minimapData[z++] = c.B;
 							minimapData[z] = c.A;
 						}
+
+						if (xOffset < stride)
+						{
+							var z = y * stride + xOffset;
+							var c = actorColor.A == 0 ? terrainColor.Right : actorColor;
+							minimapData[z++] = c.R;
+							minimapData[z++] = c.G;
+							minimapData[z++] = c.B;
+							minimapData[z] = c.A;
+						}
+					}
+					else
+					{
+						var z = y * stride + pxStride * x;
+						var c = actorColor.A == 0 ? terrainColor.Left : actorColor;
+						minimapData[z++] = c.R;
+						minimapData[z++] = c.G;
+						minimapData[z++] = c.B;
+						minimapData[z] = c.A;
 					}
 				}
-
-				var png = new Png(minimapData, bitmapWidth, height);
-				return png.Save();
 			}
+
+			var png = new Png(minimapData, bitmapWidth, height);
+			return png.Save();
 		}
 
 		public bool Contains(CPos cell)

OpenRA.Game/Map/TileReference.cs

@@ -23,6 +23,8 @@ namespace OpenRA
 		}
 
 		public override int GetHashCode() { return Type.GetHashCode() ^ Index.GetHashCode(); }
+
+		public override string ToString() { return Type + "," + Index; }
 	}
 
 	public struct ResourceTile

OpenRA.Game/Map/TileSet.cs

@@ -221,25 +221,30 @@ namespace OpenRA
 
 		public byte GetTerrainIndex(TerrainTile r)
 		{
-			if (!Templates.TryGetValue(r.Type, out var tpl))
-				return defaultWalkableTerrainIndex;
-
-			if (tpl.Contains(r.Index))
-			{
-				var tile = tpl[r.Index];
-				if (tile != null && tile.TerrainType != byte.MaxValue)
-					return tile.TerrainType;
-			}
+			var tile = Templates[r.Type][r.Index];
+			if (tile.TerrainType != byte.MaxValue)
+				return tile.TerrainType;
 
 			return defaultWalkableTerrainIndex;
 		}
 
 		public TerrainTileInfo GetTileInfo(TerrainTile r)
 		{
-			if (!Templates.TryGetValue(r.Type, out var tpl))
-				return null;
-
-			return tpl.Contains(r.Index) ? tpl[r.Index] : null;
+			return Templates[r.Type][r.Index];
 		}
+
+		public bool TryGetTileInfo(TerrainTile r, out TerrainTileInfo info)
+		{
+			if (!Templates.TryGetValue(r.Type, out var tpl) || !tpl.Contains(r.Index))
+			{
+				info = null;
+				return false;
+			}
+
+			info = tpl[r.Index];
+			return info != null;
+		}
+
+		public TerrainTile DefaultTerrainTile { get { return new TerrainTile(Templates.First().Key, 0); } }
 	}
 }

OpenRA.Game/ObjectCreator.cs

@@ -15,6 +15,7 @@ using System.IO;
 using System.Linq;
 using System.Reflection;
 using OpenRA.Primitives;
+using OpenRA.Support;
 
 namespace OpenRA
 {
@@ -41,26 +42,49 @@ namespace OpenRA
 				var resolvedPath = FileSystem.FileSystem.ResolveAssemblyPath(path, manifest, mods);
 				if (resolvedPath == null)
 					throw new FileNotFoundException("Assembly `{0}` not found.".F(path));
+#if !MONO
+				var loader = new AssemblyLoader(resolvedPath);
+				var platformType = loader.LoadDefaultAssembly();
+				assemblyList.Add(platformType);
 
-				// .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(File.ReadAllBytes(resolvedPath));
-
-				if (!ResolvedAssemblies.TryGetValue(hash, out var assembly))
-				{
-					assembly = Assembly.LoadFile(resolvedPath);
-					ResolvedAssemblies.Add(hash, assembly);
-				}
-
-				assemblyList.Add(assembly);
+#else
+				LoadAssembly(assemblyList, resolvedPath);
+#endif
 			}
 
 			AppDomain.CurrentDomain.AssemblyResolve += ResolveAssembly;
 			assemblies = assemblyList.SelectMany(asm => asm.GetNamespaces().Select(ns => (asm, ns))).ToArray();
 		}
 
+		void LoadAssembly(List<Assembly> assemblyList, string resolvedPath)
+		{
+			// .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(File.ReadAllBytes(resolvedPath));
+
+			if (!ResolvedAssemblies.TryGetValue(hash, out var assembly))
+			{
+				assembly = Assembly.LoadFile(resolvedPath);
+				ResolvedAssemblies.Add(hash, assembly);
+
+				// Allow mods to use libraries.
+				var assemblyPath = Path.GetDirectoryName(resolvedPath);
+				if (assemblyPath != null)
+				{
+					foreach (var referencedAssembly in assembly.GetReferencedAssemblies())
+					{
+						var depedencyPath = Path.Combine(assemblyPath, referencedAssembly.Name + ".dll");
+						if (File.Exists(depedencyPath))
+							LoadAssembly(assemblyList, depedencyPath);
+					}
+				}
+			}
+
+			assemblyList.Add(assembly);
+		}
+
 		Assembly ResolveAssembly(object sender, ResolveEventArgs e)
 		{
 			foreach (var a in AppDomain.CurrentDomain.GetAssemblies())

OpenRA.Game/OpenRA.Game.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <OutputType>Library</OutputType>
-    <TargetFramework>net472</TargetFramework>
+    <TargetFramework>netstandard2.1</TargetFramework>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <Optimize>true</Optimize>
     <UseVSHostingProcess>false</UseVSHostingProcess>
@@ -39,6 +39,11 @@
     <PackageReference Include="Microsoft.NETFramework.ReferenceAssemblies" Version="1.0.0" PrivateAssets="All" />
     <AdditionalFiles Include="../stylecop.json" />
   </ItemGroup>
+  <ItemGroup Condition="'$(Mono)' == ''">
+    <PackageReference Include="Microsoft.DotNet.PlatformAbstractions" Version="3.1.6" />
+    <PackageReference Include="Microsoft.Extensions.DependencyModel" Version="5.0.0-preview.3-runtime.20214.6" />
+    <PackageReference Include="System.Runtime.Loader" Version="4.3.0" />
+  </ItemGroup>
   <Target Name="DisableAnalyzers" BeforeTargets="CoreCompile" Condition="'$(Configuration)'=='Release'">
     <!-- Disable code style analysis on Release builds to improve compile-time performance -->
     <ItemGroup Condition="'$(Configuration)'=='Release'">

OpenRA.Game/Player.cs

@@ -64,7 +64,7 @@ namespace OpenRA
 		public readonly Shroud Shroud;
 		public readonly FrozenActorLayer FrozenActorLayer;
 
-		/// <summary>The faction (including Random, etc) that was selected in the lobby.</summary>
+		/// <summary>The faction (including Random, etc.) that was selected in the lobby.</summary>
 		public readonly FactionInfo DisplayFaction;
 
 		/// <summary>The spawn point index that was assigned for client-based players.</summary>
@@ -80,7 +80,8 @@ namespace OpenRA
 		{
 			get
 			{
-				return spectating || WinState != WinState.Undefined;
+				// Players in mission maps must not leave the player view
+				return !inMissionMap && (spectating || WinState != WinState.Undefined);
 			}
 		}
 

OpenRA.Game/Support/AssemblyLoader.cs

@@ -0,0 +1,362 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2020 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
+
+// Not used/usable on Mono. Only used for Dotnet Core. Based on https://github.com/natemcmaster/DotNetCorePlugins
+#if !MONO
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Reflection;
+using System.Runtime.InteropServices;
+using System.Runtime.Loader;
+using Microsoft.Extensions.DependencyModel;
+
+namespace OpenRA.Support
+{
+	public class AssemblyLoader
+	{
+		readonly string mainAssembly;
+		readonly AssemblyLoadContext context;
+
+		public Assembly LoadDefaultAssembly() => context.LoadFromAssemblyPath(mainAssembly);
+
+		public AssemblyLoader(string assemblyFile)
+		{
+			mainAssembly = assemblyFile;
+			var baseDir = Path.GetDirectoryName(assemblyFile);
+
+			context = CreateLoadContext(baseDir, assemblyFile);
+		}
+
+		static AssemblyLoadContext CreateLoadContext(string baseDir, string assemblyFile)
+		{
+			var depsJsonFile = Path.Combine(baseDir, Path.GetFileNameWithoutExtension(assemblyFile) + ".deps.json");
+
+			var builder = new AssemblyLoadContextBuilder();
+
+			builder.TryAddDependencyContext(depsJsonFile, out _);
+			builder.SetBaseDirectory(baseDir);
+
+			return builder.Build();
+		}
+	}
+
+	public class AssemblyLoadContextBuilder
+	{
+		readonly Dictionary<string, ManagedLibrary> managedLibraries = new Dictionary<string, ManagedLibrary>(StringComparer.Ordinal);
+		readonly Dictionary<string, NativeLibrary> nativeLibraries = new Dictionary<string, NativeLibrary>(StringComparer.Ordinal);
+		string basePath;
+
+		public AssemblyLoadContext Build()
+		{
+			return new ManagedLoadContext(basePath, managedLibraries, nativeLibraries);
+		}
+
+		public AssemblyLoadContextBuilder SetBaseDirectory(string path)
+		{
+			if (string.IsNullOrEmpty(path))
+				throw new ArgumentException("Argument must not be null or empty.", nameof(path));
+
+			if (!Path.IsPathRooted(path))
+				throw new ArgumentException("Argument must be a full path.", nameof(path));
+
+			basePath = path;
+			return this;
+		}
+
+		public AssemblyLoadContextBuilder AddManagedLibrary(ManagedLibrary library)
+		{
+			managedLibraries.Add(library.Name.Name, library);
+			return this;
+		}
+
+		public AssemblyLoadContextBuilder AddNativeLibrary(NativeLibrary library)
+		{
+			ValidateRelativePath(library.AppLocalPath);
+			nativeLibraries.Add(library.Name, library);
+			return this;
+		}
+
+		static void ValidateRelativePath(string probingPath)
+		{
+			if (string.IsNullOrEmpty(probingPath))
+				throw new ArgumentException("Value must not be null or empty.", nameof(probingPath));
+
+			if (Path.IsPathRooted(probingPath))
+				throw new ArgumentException("Argument must be a relative path.", nameof(probingPath));
+		}
+	}
+
+	class ManagedLoadContext : AssemblyLoadContext
+	{
+		readonly string basePath;
+		readonly Dictionary<string, ManagedLibrary> managedAssemblies;
+		readonly Dictionary<string, NativeLibrary> nativeLibraries;
+
+		static readonly string[] NativeLibraryExtensions;
+		static readonly string[] NativeLibraryPrefixes;
+
+		static readonly string[] ManagedAssemblyExtensions =
+		{
+			".dll",
+			".ni.dll",
+			".exe",
+			".ni.exe"
+		};
+
+		static ManagedLoadContext()
+		{
+			if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
+			{
+				NativeLibraryPrefixes = new[] { "" };
+				NativeLibraryExtensions = new[] { ".dll" };
+			}
+			else if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
+			{
+				NativeLibraryPrefixes = new[] { "", "lib", };
+				NativeLibraryExtensions = new[] { ".dylib" };
+			}
+			else if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
+			{
+				NativeLibraryPrefixes = new[] { "", "lib" };
+				NativeLibraryExtensions = new[] { ".so", ".so.1" };
+			}
+			else
+			{
+				NativeLibraryPrefixes = Array.Empty<string>();
+				NativeLibraryExtensions = Array.Empty<string>();
+			}
+		}
+
+		public ManagedLoadContext(string baseDirectory, Dictionary<string, ManagedLibrary> managedAssemblies, Dictionary<string, NativeLibrary> nativeLibraries)
+		{
+			basePath = baseDirectory ?? throw new ArgumentNullException(nameof(baseDirectory));
+			this.managedAssemblies = managedAssemblies ?? throw new ArgumentNullException(nameof(managedAssemblies));
+			this.nativeLibraries = nativeLibraries ?? throw new ArgumentNullException(nameof(nativeLibraries));
+		}
+
+		protected override Assembly Load(AssemblyName assemblyName)
+		{
+			// If default context is preferred, check first for types in the default context unless the dependency has been declared as private
+			try
+			{
+				var defaultAssembly = Default.LoadFromAssemblyName(assemblyName);
+				if (defaultAssembly != null)
+					return null;
+			}
+			catch
+			{
+				// Swallow errors in loading from the default context
+			}
+
+			if (managedAssemblies.TryGetValue(assemblyName.Name, out var library) && SearchForLibrary(library, out var path))
+				return LoadFromAssemblyPath(path);
+
+			return null;
+		}
+
+		protected override IntPtr LoadUnmanagedDll(string unmanagedDllName)
+		{
+			foreach (var prefix in NativeLibraryPrefixes)
+				if (nativeLibraries.TryGetValue(prefix + unmanagedDllName, out var library) && SearchForLibrary(library, prefix, out var path))
+					return LoadUnmanagedDllFromPath(path);
+
+			return base.LoadUnmanagedDll(unmanagedDllName);
+		}
+
+		bool SearchForLibrary(ManagedLibrary library, out string path)
+		{
+			// 1. Search in base path
+			foreach (var ext in ManagedAssemblyExtensions)
+			{
+				var local = Path.Combine(basePath, library.Name.Name + ext);
+				if (File.Exists(local))
+				{
+					path = local;
+					return true;
+				}
+			}
+
+			path = null;
+			return false;
+		}
+
+		bool SearchForLibrary(NativeLibrary library, string prefix, out string path)
+		{
+			// 1. Search in base path
+			foreach (var ext in NativeLibraryExtensions)
+			{
+				var candidate = Path.Combine(basePath, $"{prefix}{library.Name}{ext}");
+				if (File.Exists(candidate))
+				{
+					path = candidate;
+					return true;
+				}
+			}
+
+			// 2. Search in base path + app local (for portable deployments of netcoreapp)
+			var local = Path.Combine(basePath, library.AppLocalPath);
+			if (File.Exists(local))
+			{
+				path = local;
+				return true;
+			}
+
+			path = null;
+			return false;
+		}
+	}
+
+	public class ManagedLibrary
+	{
+		public AssemblyName Name { get; private set; }
+
+		public static ManagedLibrary CreateFromPackage(string assetPath)
+		{
+			return new ManagedLibrary
+			{
+				Name = new AssemblyName(Path.GetFileNameWithoutExtension(assetPath))
+			};
+		}
+	}
+
+	public class NativeLibrary
+	{
+		public string Name { get; private set; }
+
+		public string AppLocalPath { get; private set; }
+
+		public static NativeLibrary CreateFromPackage(string assetPath)
+		{
+			return new NativeLibrary
+			{
+				Name = Path.GetFileNameWithoutExtension(assetPath),
+				AppLocalPath = assetPath
+			};
+		}
+	}
+
+	public static class DependencyContextExtensions
+	{
+		public static AssemblyLoadContextBuilder TryAddDependencyContext(this AssemblyLoadContextBuilder builder, string depsFilePath, out Exception error)
+		{
+			error = null;
+			try
+			{
+				builder.AddDependencyContext(depsFilePath);
+			}
+			catch (Exception ex)
+			{
+				error = ex;
+			}
+
+			return builder;
+		}
+
+		public static AssemblyLoadContextBuilder AddDependencyContext(this AssemblyLoadContextBuilder builder, string depsFilePath)
+		{
+			var reader = new DependencyContextJsonReader();
+			using (var file = File.OpenRead(depsFilePath))
+			{
+				var deps = reader.Read(file);
+				builder.SetBaseDirectory(Path.GetDirectoryName(depsFilePath));
+				builder.AddDependencyContext(deps);
+			}
+
+			return builder;
+		}
+
+		static string GetFallbackRid()
+		{
+			string ridBase;
+
+			if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
+				ridBase = "win10";
+			else if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
+				ridBase = "linux";
+			else if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
+				ridBase = "osx.10.12";
+			else
+				return "any";
+
+			switch (RuntimeInformation.OSArchitecture)
+			{
+				case Architecture.X86:
+					return ridBase + "-x86";
+				case Architecture.X64:
+					return ridBase + "-x64";
+				case Architecture.Arm:
+					return ridBase + "-arm";
+				case Architecture.Arm64:
+					return ridBase + "-arm64";
+			}
+
+			return ridBase;
+		}
+
+		public static AssemblyLoadContextBuilder AddDependencyContext(this AssemblyLoadContextBuilder builder, DependencyContext dependencyContext)
+		{
+			var ridGraph = dependencyContext.RuntimeGraph.Any()
+				? dependencyContext.RuntimeGraph
+				: DependencyContext.Default.RuntimeGraph;
+
+			var rid = Microsoft.DotNet.PlatformAbstractions.RuntimeEnvironment.GetRuntimeIdentifier();
+			var fallbackRid = GetFallbackRid();
+			var fallbackGraph = ridGraph.FirstOrDefault(g => g.Runtime == rid)
+								?? ridGraph.FirstOrDefault(g => g.Runtime == fallbackRid)
+								?? new RuntimeFallbacks("any");
+
+			foreach (var managed in dependencyContext.ResolveRuntimeAssemblies(fallbackGraph))
+				builder.AddManagedLibrary(managed);
+
+			foreach (var native in dependencyContext.ResolveNativeAssets(fallbackGraph))
+				builder.AddNativeLibrary(native);
+
+			return builder;
+		}
+
+		static IEnumerable<ManagedLibrary> ResolveRuntimeAssemblies(this DependencyContext depContext, RuntimeFallbacks runtimeGraph)
+		{
+			var rids = GetRids(runtimeGraph);
+			return from library in depContext.RuntimeLibraries
+				   from assetPath in SelectAssets(rids, library.RuntimeAssemblyGroups)
+				   select ManagedLibrary.CreateFromPackage(assetPath);
+		}
+
+		static IEnumerable<NativeLibrary> ResolveNativeAssets(this DependencyContext depContext, RuntimeFallbacks runtimeGraph)
+		{
+			var rids = GetRids(runtimeGraph);
+			return from library in depContext.RuntimeLibraries
+				   from assetPath in SelectAssets(rids, library.NativeLibraryGroups)
+				   where !assetPath.EndsWith(".a", StringComparison.Ordinal)
+				   select NativeLibrary.CreateFromPackage(assetPath);
+		}
+
+		static IEnumerable<string> GetRids(RuntimeFallbacks runtimeGraph)
+		{
+			return Enumerable.Concat(new[] { runtimeGraph.Runtime }, runtimeGraph?.Fallbacks ?? Enumerable.Empty<string>());
+		}
+
+		static IEnumerable<string> SelectAssets(IEnumerable<string> rids, IEnumerable<RuntimeAssetGroup> groups)
+		{
+			foreach (var rid in rids)
+			{
+				var group = groups.FirstOrDefault(g => g.Runtime == rid);
+				if (group != null)
+					return group.AssetPaths;
+			}
+
+			return groups.GetDefaultAssets();
+		}
+	}
+}
+#endif

OpenRA.Launcher/OpenRA.Launcher.csproj

@@ -1,7 +1,8 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net472</TargetFramework>
+    <TargetFramework Condition="'$(Mono)' == ''">net5.0</TargetFramework>
+    <TargetFramework Condition="'$(Mono)' != ''">netstandard2.1</TargetFramework>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <Optimize>true</Optimize>
     <UseVSHostingProcess>false</UseVSHostingProcess>
@@ -17,6 +18,8 @@
     <CodeAnalysisRuleSet>..\OpenRA.ruleset</CodeAnalysisRuleSet>
     <Configurations>Release;Debug</Configurations>
     <AssemblyName>OpenRA</AssemblyName>
+    <IsPublishable Condition="'$(CopyGenericLauncher)' == 'False'">false</IsPublishable>
+    <CopyLocalLockFileAssemblies>true</CopyLocalLockFileAssemblies>
   </PropertyGroup>
   <PropertyGroup>
     <TargetPlatform Condition="$([MSBuild]::IsOsPlatform('Windows'))">win-x64</TargetPlatform>
@@ -62,4 +65,8 @@
       <Analyzer Remove="@(Analyzer)" />
     </ItemGroup>
   </Target>
+  <ItemGroup>
+    <TrimmerRootAssembly Include="netstandard" />
+    <TrimmerRootAssembly Include="System.IO.Pipes" />
+  </ItemGroup>
 </Project>

OpenRA.Mods.Cnc/FileFormats/AudReader.cs

@@ -32,11 +32,6 @@ namespace OpenRA.Mods.Cnc.FileFormats
 
 	public static class AudReader
 	{
-		public static byte[] LoadSound(byte[] raw, ref int index)
-		{
-			return ImaAdpcmReader.LoadImaAdpcmSound(raw, ref index);
-		}
-
 		public static float SoundLength(Stream s)
 		{
 			var sampleRate = s.ReadUInt16();

OpenRA.Mods.Cnc/FileSystem/MegFile.cs

@@ -0,0 +1,138 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2020 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.Primitives;
+
+namespace OpenRA.Mods.Cnc.FileSystem
+{
+	/// <summary>
+	/// This class supports loading unencrypted V3 .meg files using
+	/// reference documentation from here https://modtools.petrolution.net/docs/MegFileFormat
+	/// </summary>
+	public class MegV3Loader : IPackageLoader
+	{
+		const uint UnencryptedMegID = 0xFFFFFFFF;
+
+		// Float value 0.99, but it is simpler to read and compare as an integer
+		const uint MegVersion = 0x3F7D70A4;
+
+		public bool TryParsePackage(Stream s, string filename, OpenRA.FileSystem.FileSystem context, out IReadOnlyPackage package)
+		{
+			var position = s.Position;
+
+			var id = s.ReadUInt32();
+			var version = s.ReadUInt32();
+
+			s.Position = position;
+
+			if (id != UnencryptedMegID || version != MegVersion)
+			{
+				package = null;
+				return false;
+			}
+
+			package = new MegFile(s, filename);
+			return true;
+		}
+
+		public sealed class MegFile : IReadOnlyPackage
+		{
+			readonly Stream s;
+
+			readonly Dictionary<string, (uint Offset, int Length)> contents = new Dictionary<string, (uint Offset, int Length)>();
+
+			public MegFile(Stream s, string filename)
+			{
+				Name = filename;
+				this.s = s;
+
+				var id = s.ReadUInt32();
+				var version = s.ReadUInt32();
+
+				if (id != UnencryptedMegID || version != MegVersion)
+					throw new Exception("Invalid file signature for meg file");
+
+				var headerSize = s.ReadUInt32();
+				var numStrings = s.ReadUInt32();
+				var numFiles = s.ReadUInt32();
+				var stringsSize = s.ReadUInt32();
+				var stringsStart = s.Position;
+
+				var filenames = new List<string>();
+
+				// The file names are an indexed array of strings
+				for (var i = 0; i < numStrings; i++)
+				{
+					var length = s.ReadUInt16();
+					filenames.Add(s.ReadASCII(length));
+				}
+
+				// The header indicates where we should be, so verify it
+				if (s.Position != stringsSize + stringsStart)
+					throw new Exception("File name table in .meg file inconsistent");
+
+				// Now we load each file entry and associated info
+				for (var i = 0; i < numFiles; i++)
+				{
+					// Ignore flags, crc, index
+					s.Position += 10;
+					var size = s.ReadUInt32();
+					var offset = s.ReadUInt32();
+					var nameIndex = s.ReadUInt16();
+					contents[filenames[nameIndex]] = (offset, (int)size);
+				}
+
+				if (s.Position != headerSize)
+					throw new Exception("Expected to be at data start offset");
+			}
+
+			public string Name { get; }
+
+			public IEnumerable<string> Contents => contents.Keys;
+
+			public bool Contains(string filename)
+			{
+				return contents.ContainsKey(filename);
+			}
+
+			public void Dispose()
+			{
+				s.Dispose();
+			}
+
+			public Stream GetStream(string filename)
+			{
+				// Look up the index of the filename
+				if (!contents.TryGetValue(filename, out var index))
+					return null;
+
+				return SegmentStream.CreateWithoutOwningStream(s, index.Offset, index.Length);
+			}
+
+			public IReadOnlyPackage OpenPackage(string filename, OpenRA.FileSystem.FileSystem context)
+			{
+				var childStream = GetStream(filename);
+				if (childStream == null)
+					return null;
+
+				if (context.TryParsePackage(childStream, filename, out var package))
+					return package;
+
+				childStream.Dispose();
+				return null;
+			}
+		}
+	}
+}

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

@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFramework>net472</TargetFramework>
+    <TargetFramework>netstandard2.1</TargetFramework>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <Optimize>true</Optimize>
     <LangVersion>7.3</LangVersion>
@@ -11,6 +11,7 @@
     <PlatformTarget>AnyCPU</PlatformTarget>
     <EnableDefaultCompileItems>false</EnableDefaultCompileItems>
     <CodeAnalysisRuleSet>..\OpenRA.ruleset</CodeAnalysisRuleSet>
+    <IsPublishable Condition="'$(CopyCncDll)' == 'False'">false</IsPublishable>
   </PropertyGroup>
   <ItemGroup>
     <!-- Work around an issue where Rider does not detect files in the project root using the default glob -->
@@ -37,4 +38,4 @@
       <Analyzer Remove="@(Analyzer)" />
     </ItemGroup>
   </Target>
-</Project>
+</Project>

OpenRA.Mods.Cnc/Traits/Disguise.cs

@@ -79,8 +79,8 @@ namespace OpenRA.Mods.Cnc.Traits
 		[Desc("The condition to grant to self while disguised.")]
 		public readonly string DisguisedCondition = null;
 
-		[Desc("What diplomatic stances can this actor disguise as.")]
-		public readonly PlayerRelationship ValidStances = PlayerRelationship.Ally | PlayerRelationship.Neutral | PlayerRelationship.Enemy;
+		[Desc("Player relationships the owner of the disguise target needs.")]
+		public readonly PlayerRelationship ValidRelationships = PlayerRelationship.Ally | PlayerRelationship.Neutral | PlayerRelationship.Enemy;
 
 		[Desc("Target types of actors that this actor disguise as.")]
 		public readonly BitSet<TargetableType> TargetTypes = new BitSet<TargetableType>("Disguise");
@@ -299,7 +299,7 @@ namespace OpenRA.Mods.Cnc.Traits
 		public override bool CanTargetActor(Actor self, Actor target, TargetModifiers modifiers, ref string cursor)
 		{
 			var stance = self.Owner.RelationshipWith(target.Owner);
-			if (!info.ValidStances.HasStance(stance))
+			if (!info.ValidRelationships.HasStance(stance))
 				return false;
 
 			return info.TargetTypes.Overlaps(target.GetAllTargetTypes());
@@ -308,7 +308,7 @@ namespace OpenRA.Mods.Cnc.Traits
 		public override bool CanTargetFrozenActor(Actor self, FrozenActor target, TargetModifiers modifiers, ref string cursor)
 		{
 			var stance = self.Owner.RelationshipWith(target.Owner);
-			if (!info.ValidStances.HasStance(stance))
+			if (!info.ValidRelationships.HasStance(stance))
 				return false;
 
 			return info.TargetTypes.Overlaps(target.Info.GetAllTargetTypes());

OpenRA.Mods.Cnc/Traits/Infiltration/InfiltrateForDecoration.cs

@@ -48,7 +48,7 @@ namespace OpenRA.Mods.Cnc.Traits
 
 		protected override bool ShouldRender(Actor self)
 		{
-			return infiltrators.Any(i => Info.ValidStances.HasStance(i.RelationshipWith(self.World.RenderPlayer)));
+			return infiltrators.Any(i => Info.ValidRelationships.HasStance(i.RelationshipWith(self.World.RenderPlayer)));
 		}
 	}
 }

OpenRA.Mods.Cnc/Traits/Infiltration/Infiltrates.cs

@@ -30,8 +30,8 @@ namespace OpenRA.Mods.Cnc.Traits
 		[Desc("Color to use for the target line.")]
 		public readonly Color TargetLineColor = Color.Crimson;
 
-		[Desc("What diplomatic stances can be infiltrated by this actor.")]
-		public readonly PlayerRelationship ValidStances = PlayerRelationship.Neutral | PlayerRelationship.Enemy;
+		[Desc("Player relationships the owner of the infiltration target needs.")]
+		public readonly PlayerRelationship ValidRelationships = PlayerRelationship.Neutral | PlayerRelationship.Enemy;
 
 		[Desc("Behaviour when entering the target.",
 			"Possible values are Exit, Suicide, Dispose.")]
@@ -101,10 +101,10 @@ namespace OpenRA.Mods.Cnc.Traits
 			{
 				case TargetType.Actor:
 					return Info.Types.Overlaps(target.Actor.GetEnabledTargetTypes()) &&
-					       Info.ValidStances.HasStance(self.Owner.RelationshipWith(target.Actor.Owner));
+					       Info.ValidRelationships.HasStance(self.Owner.RelationshipWith(target.Actor.Owner));
 				case TargetType.FrozenActor:
 					return target.FrozenActor.IsValid && Info.Types.Overlaps(target.FrozenActor.TargetTypes) &&
-					       Info.ValidStances.HasStance(self.Owner.RelationshipWith(target.FrozenActor.Owner));
+					       Info.ValidRelationships.HasStance(self.Owner.RelationshipWith(target.FrozenActor.Owner));
 				default:
 					return false;
 			}
@@ -136,7 +136,7 @@ namespace OpenRA.Mods.Cnc.Traits
 		public override bool CanTargetActor(Actor self, Actor target, TargetModifiers modifiers, ref string cursor)
 		{
 			var stance = self.Owner.RelationshipWith(target.Owner);
-			if (!info.ValidStances.HasStance(stance))
+			if (!info.ValidRelationships.HasStance(stance))
 				return false;
 
 			return info.Types.Overlaps(target.GetAllTargetTypes());
@@ -145,7 +145,7 @@ namespace OpenRA.Mods.Cnc.Traits
 		public override bool CanTargetFrozenActor(Actor self, FrozenActor target, TargetModifiers modifiers, ref string cursor)
 		{
 			var stance = self.Owner.RelationshipWith(target.Owner);
-			if (!info.ValidStances.HasStance(stance))
+			if (!info.ValidRelationships.HasStance(stance))
 				return false;
 
 			return info.Types.Overlaps(target.Info.GetAllTargetTypes());

OpenRA.Mods.Common/Activities/CaptureActor.cs

@@ -124,7 +124,7 @@ namespace OpenRA.Mods.Common.Activities
 				foreach (var t in enterActor.TraitsImplementing<INotifyCapture>())
 					t.OnCapture(enterActor, self, oldOwner, self.Owner, captures.Info.CaptureTypes);
 
-				if (self.Owner.RelationshipWith(oldOwner).HasStance(captures.Info.PlayerExperienceStances))
+				if (self.Owner.RelationshipWith(oldOwner).HasStance(captures.Info.PlayerExperienceRelationships))
 					self.Owner.PlayerActor.TraitOrDefault<PlayerExperience>()?.GiveExperience(captures.Info.PlayerExperience);
 
 				if (captures.Info.ConsumedByCapture)

OpenRA.Mods.Common/Activities/RepairBuilding.cs

@@ -38,7 +38,7 @@ namespace OpenRA.Mods.Common.Activities
 			// Make sure we can still repair the target before entering
 			// (but not before, because this may stop the actor in the middle of nowhere)
 			var stance = self.Owner.RelationshipWith(enterActor.Owner);
-			if (enterHealth == null || enterHealth.DamageState == DamageState.Undamaged || enterEngineerRepariable == null || enterEngineerRepariable.IsTraitDisabled || !info.ValidStances.HasStance(stance))
+			if (enterHealth == null || enterHealth.DamageState == DamageState.Undamaged || enterEngineerRepariable == null || enterEngineerRepariable.IsTraitDisabled || !info.ValidRelationships.HasStance(stance))
 			{
 				Cancel(self, true);
 				return false;
@@ -61,7 +61,7 @@ namespace OpenRA.Mods.Common.Activities
 				return;
 
 			var stance = self.Owner.RelationshipWith(enterActor.Owner);
-			if (!info.ValidStances.HasStance(stance))
+			if (!info.ValidRelationships.HasStance(stance))
 				return;
 
 			if (enterHealth.DamageState == DamageState.Undamaged)

OpenRA.Mods.Common/EditorBrushes/EditorResourceBrush.cs

@@ -89,9 +89,6 @@ namespace OpenRA.Mods.Common.Widgets
 
 			var tile = world.Map.Tiles[cell];
 			var tileInfo = world.Map.Rules.TileSet.GetTileInfo(tile);
-			if (tileInfo == null)
-				return false;
-
 			var terrainType = world.Map.Rules.TileSet.TerrainInfo[tileInfo.TerrainType];
 
 			if (mapResources[cell].Type == ResourceType.ResourceType)

OpenRA.Mods.Common/Effects/RallyPointIndicator.cs

@@ -23,16 +23,14 @@ namespace OpenRA.Mods.Common.Effects
 		readonly RallyPoint rp;
 		readonly Animation flag;
 		readonly Animation circles;
-		readonly ExitInfo[] exits;
 
 		List<WPos> targetLineNodes = new List<WPos> { };
 		List<CPos> cachedLocations;
 
-		public RallyPointIndicator(Actor building, RallyPoint rp, ExitInfo[] exits)
+		public RallyPointIndicator(Actor building, RallyPoint rp)
 		{
 			this.building = building;
 			this.rp = rp;
-			this.exits = exits;
 
 			if (rp.Info.Image != null)
 			{
@@ -73,21 +71,8 @@ namespace OpenRA.Mods.Common.Effects
 			if (targetLineNodes.Count == 0)
 				return;
 
-			var exitPos = building.CenterPosition;
-
-			// Find closest exit
-			var dist = int.MaxValue;
-			foreach (var exit in exits)
-			{
-				var ep = building.CenterPosition + exit.SpawnOffset;
-				var len = (targetLineNodes[0] - ep).Length;
-				if (len < dist)
-				{
-					dist = len;
-					exitPos = ep;
-				}
-			}
-
+			var exit = building.NearestExitOrDefault(targetLineNodes[0]);
+			var exitPos = exit != null ? building.World.Map.CenterOfCell(building.Location + exit.Info.ExitCell) : building.CenterPosition;
 			targetLineNodes.Insert(0, exitPos);
 		}
 

OpenRA.Mods.Common/Lint/CheckMapTiles.cs

@@ -0,0 +1,25 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2020 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.Linq;
+
+namespace OpenRA.Mods.Common.Lint
+{
+	public class CheckMapTiles : ILintMapPass
+	{
+		public void Run(Action<string> emitError, Action<string> emitWarning, ModData modData, Map map)
+		{
+			foreach (var kv in map.ReplacedInvalidTerrainTiles)
+				emitError("Cell {0} references invalid terrain tile {1}.".F(kv.Key, kv.Value));
+		}
+	}
+}

OpenRA.Mods.Common/OpenRA.Mods.Common.csproj

@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFramework>net472</TargetFramework>
+    <TargetFramework>netstandard2.1</TargetFramework>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <Optimize>true</Optimize>
     <LangVersion>7.3</LangVersion>
@@ -11,6 +11,7 @@
     <PlatformTarget>AnyCPU</PlatformTarget>
     <EnableDefaultCompileItems>false</EnableDefaultCompileItems>
     <CodeAnalysisRuleSet>..\OpenRA.ruleset</CodeAnalysisRuleSet>
+    <CopyLocalLockFileAssemblies>true</CopyLocalLockFileAssemblies>
   </PropertyGroup>
   <ItemGroup>
     <!-- Work around an issue where Rider does not detect files in the project root using the default glob -->
@@ -24,6 +25,7 @@
     <ProjectReference Include="..\OpenRA.Game\OpenRA.Game.csproj">
       <Private>False</Private>
     </ProjectReference>
+    <PackageReference Include="Microsoft.Win32.Registry" Version="4.7.0" />
     <PackageReference Include="OpenRA-FuzzyLogicLibrary" Version="1.0.1" />
     <PackageReference Include="DiscordRichPresence" Version="1.0.150" />
     <PackageReference Include="rix0rrr.BeaconLib" Version="1.0.2" />

OpenRA.Mods.Common/Projectiles/Bullet.cs

@@ -96,8 +96,8 @@ namespace OpenRA.Mods.Common.Projectiles
 		[Desc("Terrain where the projectile explodes instead of bouncing.")]
 		public readonly HashSet<string> InvalidBounceTerrain = new HashSet<string>();
 
-		[Desc("If projectile touches an actor with one of these stances during or after the first bounce, trigger explosion.")]
-		public readonly PlayerRelationship ValidBounceBlockerStances = PlayerRelationship.Enemy | PlayerRelationship.Neutral;
+		[Desc("Trigger the explosion if the projectile touches an actor thats owner has these player relationships.")]
+		public readonly PlayerRelationship ValidBounceBlockerRelationships = PlayerRelationship.Enemy | PlayerRelationship.Neutral;
 
 		[Desc("Altitude above terrain below which to explode. Zero effectively deactivates airburst.")]
 		public readonly WDist AirburstAltitude = WDist.Zero;
@@ -319,7 +319,7 @@ namespace OpenRA.Mods.Common.Projectiles
 				if (checkTargetType && !Target.FromActor(victim).IsValidFor(firedBy))
 					continue;
 
-				if (!info.ValidBounceBlockerStances.HasStance(firedBy.Owner.RelationshipWith(victim.Owner)))
+				if (!info.ValidBounceBlockerRelationships.HasStance(firedBy.Owner.RelationshipWith(victim.Owner)))
 					continue;
 
 				// If the impact position is within any actor's HitShape, we have a direct hit

OpenRA.Mods.Common/ServerTraits/MasterServerPinger.cs

@@ -13,6 +13,7 @@ using System;
 using System.Collections.Generic;
 using System.Net;
 using System.Text.RegularExpressions;
+using System.Threading.Tasks;
 using BeaconLib;
 using OpenRA.Network;
 using OpenRA.Server;
@@ -107,7 +108,7 @@ namespace OpenRA.Mods.Common.Server
 		{
 			isBusy = true;
 
-			Action a = () =>
+			Task.Run(() =>
 			{
 				try
 				{
@@ -160,9 +161,7 @@ namespace OpenRA.Mods.Common.Server
 				}
 
 				isBusy = false;
-			};
-
-			a.BeginInvoke(null, null);
+			});
 		}
 	}
 }

OpenRA.Mods.Common/Traits/AcceptsDeliveredCash.cs

@@ -20,8 +20,8 @@ namespace OpenRA.Mods.Common.Traits
 		[Desc("Accepted `DeliversCash` types. Leave empty to accept all types.")]
 		public readonly HashSet<string> ValidTypes = new HashSet<string>();
 
-		[Desc("Stance the delivering actor needs to enter.")]
-		public readonly PlayerRelationship ValidStances = PlayerRelationship.Ally;
+		[Desc("Player relationships the owner of the delivering actor needs.")]
+		public readonly PlayerRelationship ValidRelationships = PlayerRelationship.Ally;
 
 		[Desc("Play a randomly selected sound from this list when accepting cash.")]
 		public readonly string[] Sounds = { };
@@ -31,7 +31,7 @@ namespace OpenRA.Mods.Common.Traits
 
 	public class AcceptsDeliveredCash : INotifyCashTransfer
 	{
-		AcceptsDeliveredCashInfo info;
+		readonly AcceptsDeliveredCashInfo info;
 
 		public AcceptsDeliveredCash(Actor self, AcceptsDeliveredCashInfo info)
 		{

OpenRA.Mods.Common/Traits/AcceptsDeliveredExperience.cs

@@ -20,8 +20,8 @@ namespace OpenRA.Mods.Common.Traits
 		[Desc("Accepted `DeliversExperience` types. Leave empty to accept all types.")]
 		public readonly HashSet<string> ValidTypes = new HashSet<string>();
 
-		[Desc("Stance the delivering actor needs to enter.")]
-		public readonly PlayerRelationship ValidStances = PlayerRelationship.Ally;
+		[Desc("Player relationships the owner of the delivering actor needs.")]
+		public readonly PlayerRelationship ValidRelationships = PlayerRelationship.Ally;
 
 		public override object Create(ActorInitializer init) { return new AcceptsDeliveredExperience(init.Self, this); }
 	}

OpenRA.Mods.Common/Traits/Armament.cs

@@ -68,8 +68,8 @@ namespace OpenRA.Mods.Common.Traits
 		public WeaponInfo WeaponInfo { get; private set; }
 		public WDist ModifiedRange { get; private set; }
 
-		public readonly PlayerRelationship TargetStances = PlayerRelationship.Enemy;
-		public readonly PlayerRelationship ForceTargetStances = PlayerRelationship.Enemy | PlayerRelationship.Neutral | PlayerRelationship.Ally;
+		public readonly PlayerRelationship TargetRelationships = PlayerRelationship.Enemy;
+		public readonly PlayerRelationship ForceTargetRelationships = PlayerRelationship.Enemy | PlayerRelationship.Neutral | PlayerRelationship.Ally;
 
 		// TODO: instead of having multiple Armaments and unique AttackBase,
 		// an actor should be able to have multiple AttackBases with

OpenRA.Mods.Common/Traits/Attack/AttackBase.cs

@@ -377,7 +377,7 @@ namespace OpenRA.Mods.Common.Traits
 
 			return Armaments.Where(a =>
 				!a.IsTraitDisabled
-				&& (owner == null || (forceAttack ? a.Info.ForceTargetStances : a.Info.TargetStances).HasStance(self.Owner.RelationshipWith(owner)))
+				&& (owner == null || (forceAttack ? a.Info.ForceTargetRelationships : a.Info.TargetRelationships).HasStance(self.Owner.RelationshipWith(owner)))
 				&& a.Weapon.IsValidAgainst(t, self.World, self));
 		}
 
@@ -408,7 +408,7 @@ namespace OpenRA.Mods.Common.Traits
 			var stances = PlayerRelationship.None;
 			foreach (var armament in Armaments)
 				if (!armament.IsTraitDisabled)
-					stances |= armament.Info.TargetStances;
+					stances |= armament.Info.TargetRelationships;
 
 			return stances;
 		}

OpenRA.Mods.Common/Traits/AutoTarget.cs

@@ -326,7 +326,7 @@ namespace OpenRA.Mods.Common.Traits
 			return activeTargetPriorities.Any(ati =>
 			{
 				// Incompatible stances
-				if (!ati.ValidStances.HasStance(self.Owner.RelationshipWith(owner)))
+				if (!ati.ValidRelationships.HasStance(self.Owner.RelationshipWith(owner)))
 					return false;
 
 				// Incompatible target types
@@ -391,7 +391,7 @@ namespace OpenRA.Mods.Common.Traits
 						return false;
 
 					// Incompatible stances
-					if (!ati.ValidStances.HasStance(self.Owner.RelationshipWith(owner)))
+					if (!ati.ValidRelationships.HasStance(self.Owner.RelationshipWith(owner)))
 						return false;
 
 					// Incompatible target types

OpenRA.Mods.Common/Traits/AutoTargetPriority.cs

@@ -23,8 +23,8 @@ namespace OpenRA.Mods.Common.Traits
 		[Desc("Target types that can't be AutoTargeted.", "Overrules ValidTargets.")]
 		public readonly BitSet<TargetableType> InvalidTargets;
 
-		[Desc("Stances between actor's and target's owner which can be AutoTargeted.")]
-		public readonly PlayerRelationship ValidStances = PlayerRelationship.Ally | PlayerRelationship.Neutral | PlayerRelationship.Enemy;
+		[Desc("Relationships between actor's and target's owner needed for AutoTargeting.")]
+		public readonly PlayerRelationship ValidRelationships = PlayerRelationship.Ally | PlayerRelationship.Neutral | PlayerRelationship.Enemy;
 
 		[Desc("ValidTargets with larger priorities will be AutoTargeted before lower priorities.")]
 		public readonly int Priority = 1;

OpenRA.Mods.Common/Traits/BotModules/CaptureManagerBotModule.cs

@@ -37,8 +37,8 @@ namespace OpenRA.Mods.Common.Traits
 		[Desc("Should visibility (Shroud, Fog, Cloak, etc) be considered when searching for capturable targets?")]
 		public readonly bool CheckCaptureTargetsForVisibility = true;
 
-		[Desc("Player stances that capturers should attempt to target.")]
-		public readonly PlayerRelationship CapturableStances = PlayerRelationship.Enemy | PlayerRelationship.Neutral;
+		[Desc("Player relationships that capturers should attempt to target.")]
+		public readonly PlayerRelationship CapturableRelationships = PlayerRelationship.Enemy | PlayerRelationship.Neutral;
 
 		public override object Create(ActorInitializer init) { return new CaptureManagerBotModule(init.Self, this); }
 	}
@@ -133,7 +133,7 @@ namespace OpenRA.Mods.Common.Traits
 				return;
 
 			var randPlayer = world.Players.Where(p => !p.Spectating
-				&& Info.CapturableStances.HasStance(player.RelationshipWith(p))).Random(world.LocalRandom);
+				&& Info.CapturableRelationships.HasStance(player.RelationshipWith(p))).Random(world.LocalRandom);
 
 			var targetOptions = Info.CheckCaptureTargetsForVisibility
 				? GetVisibleActorsBelongingToPlayer(randPlayer)

OpenRA.Mods.Common/Traits/Buildings/RallyPoint.cs

@@ -75,13 +75,7 @@ namespace OpenRA.Mods.Common.Traits
 
 		void INotifyCreated.Created(Actor self)
 		{
-			// Display only the first level of priority
-			var priorityExits = self.Info.TraitInfos<ExitInfo>()
-				.GroupBy(e => e.Priority)
-				.FirstOrDefault();
-
-			var exits = priorityExits != null ? priorityExits.ToArray() : new ExitInfo[0];
-			self.World.Add(new RallyPointIndicator(self, this, exits));
+			self.World.Add(new RallyPointIndicator(self, this));
 		}
 
 		public void OnOwnerChanged(Actor self, Player oldOwner, Player newOwner)

OpenRA.Mods.Common/Traits/Capturable.cs

@@ -22,8 +22,8 @@ namespace OpenRA.Mods.Common.Traits
 		[Desc("CaptureTypes (from the Captures trait) that are able to capture this.")]
 		public readonly BitSet<CaptureType> Types = default(BitSet<CaptureType>);
 
-		[Desc("What diplomatic stances can be captured by this actor.")]
-		public readonly PlayerRelationship ValidStances = PlayerRelationship.Neutral | PlayerRelationship.Enemy;
+		[Desc("What player relationships the target's owner needs to be captured by this actor.")]
+		public readonly PlayerRelationship ValidRelationships = PlayerRelationship.Neutral | PlayerRelationship.Enemy;
 
 		[Desc("Cancel the actor's current activity when getting captured.")]
 		public readonly bool CancelActivity = false;

OpenRA.Mods.Common/Traits/CaptureManager.cs

@@ -50,7 +50,7 @@ namespace OpenRA.Mods.Common.Traits
 			// Actors with FrozenUnderFog should therefore not disable the Capturable trait.
 			var stance = captor.Owner.RelationshipWith(frozenActor.Owner);
 			return frozenActor.Info.TraitInfos<CapturableInfo>()
-				.Any(c => c.ValidStances.HasStance(stance) && captures.Info.CaptureTypes.Overlaps(c.Types));
+				.Any(c => c.ValidRelationships.HasStance(stance) && captures.Info.CaptureTypes.Overlaps(c.Types));
 		}
 	}
 
@@ -108,13 +108,13 @@ namespace OpenRA.Mods.Common.Traits
 			allyCapturableTypes = neutralCapturableTypes = enemyCapturableTypes = default(BitSet<CaptureType>);
 			foreach (var c in enabledCapturable)
 			{
-				if (c.Info.ValidStances.HasStance(PlayerRelationship.Ally))
+				if (c.Info.ValidRelationships.HasStance(PlayerRelationship.Ally))
 					allyCapturableTypes = allyCapturableTypes.Union(c.Info.Types);
 
-				if (c.Info.ValidStances.HasStance(PlayerRelationship.Neutral))
+				if (c.Info.ValidRelationships.HasStance(PlayerRelationship.Neutral))
 					neutralCapturableTypes = neutralCapturableTypes.Union(c.Info.Types);
 
-				if (c.Info.ValidStances.HasStance(PlayerRelationship.Enemy))
+				if (c.Info.ValidRelationships.HasStance(PlayerRelationship.Enemy))
 					enemyCapturableTypes = enemyCapturableTypes.Union(c.Info.Types);
 			}
 		}

OpenRA.Mods.Common/Traits/Captures.cs

@@ -43,8 +43,8 @@ namespace OpenRA.Mods.Common.Traits
 		[Desc("Experience granted to the capturing player.")]
 		public readonly int PlayerExperience = 0;
 
-		[Desc("Stance that the structure's previous owner needs to have for the capturing player to receive Experience.")]
-		public readonly PlayerRelationship PlayerExperienceStances = PlayerRelationship.Enemy;
+		[Desc("Relationships that the structure's previous owner needs to have for the capturing player to receive Experience.")]
+		public readonly PlayerRelationship PlayerExperienceRelationships = PlayerRelationship.Enemy;
 
 		[Desc("Cursor to display when the health of the target actor is above the sabotage threshold.")]
 		public readonly string SabotageCursor = "capture";

OpenRA.Mods.Common/Traits/Conditions/ProximityExternalCondition.cs

@@ -30,8 +30,8 @@ namespace OpenRA.Mods.Common.Traits
 		"Ignored if 0 (actors are selected regardless of vertical distance).")]
 		public readonly WDist MaximumVerticalOffset = WDist.Zero;
 
-		[Desc("What diplomatic stances are affected.")]
-		public readonly PlayerRelationship ValidStances = PlayerRelationship.Ally;
+		[Desc("What player relationships are affected.")]
+		public readonly PlayerRelationship ValidRelationships = PlayerRelationship.Ally;
 
 		[Desc("Condition is applied permanently to this actor.")]
 		public readonly bool AffectsParent = false;
@@ -111,7 +111,7 @@ namespace OpenRA.Mods.Common.Traits
 				return;
 
 			var stance = self.Owner.RelationshipWith(a.Owner);
-			if (!Info.ValidStances.HasStance(stance))
+			if (!Info.ValidRelationships.HasStance(stance))
 				return;
 
 			var external = a.TraitsImplementing<ExternalCondition>()
@@ -135,7 +135,7 @@ namespace OpenRA.Mods.Common.Traits
 			if ((produced.CenterPosition - self.CenterPosition).HorizontalLengthSquared <= Info.Range.LengthSquared)
 			{
 				var stance = self.Owner.RelationshipWith(produced.Owner);
-				if (!Info.ValidStances.HasStance(stance))
+				if (!Info.ValidRelationships.HasStance(stance))
 					return;
 
 				var external = produced.TraitsImplementing<ExternalCondition>()

OpenRA.Mods.Common/Traits/CreatesShroud.cs

@@ -17,8 +17,8 @@ namespace OpenRA.Mods.Common.Traits
 {
 	public class CreatesShroudInfo : AffectsShroudInfo
 	{
-		[Desc("Stance the watching player needs to see the generated shroud.")]
-		public readonly PlayerRelationship ValidStances = PlayerRelationship.Neutral | PlayerRelationship.Enemy;
+		[Desc("Relationship the watching player needs to see the generated shroud.")]
+		public readonly PlayerRelationship ValidRelationships = PlayerRelationship.Neutral | PlayerRelationship.Enemy;
 
 		public override object Create(ActorInitializer init) { return new CreatesShroud(init.Self, this); }
 	}
@@ -43,7 +43,7 @@ namespace OpenRA.Mods.Common.Traits
 
 		protected override void AddCellsToPlayerShroud(Actor self, Player p, PPos[] uv)
 		{
-			if (!info.ValidStances.HasStance(self.Owner.RelationshipWith(p)))
+			if (!info.ValidRelationships.HasStance(self.Owner.RelationshipWith(p)))
 				return;
 
 			p.Shroud.AddSource(this, Shroud.SourceType.Shroud, uv);

OpenRA.Mods.Common/Traits/DeliversCash.cs

@@ -99,7 +99,7 @@ namespace OpenRA.Mods.Common.Traits
 			public override bool CanTargetActor(Actor self, Actor target, TargetModifiers modifiers, ref string cursor)
 			{
 				var targetInfo = target.Info.TraitInfoOrDefault<AcceptsDeliveredCashInfo>();
-				if (targetInfo == null || !targetInfo.ValidStances.HasStance(target.Owner.RelationshipWith(self.Owner)))
+				if (targetInfo == null || !targetInfo.ValidRelationships.HasStance(target.Owner.RelationshipWith(self.Owner)))
 					return false;
 
 				if (targetInfo.ValidTypes.Count == 0)
@@ -112,7 +112,7 @@ namespace OpenRA.Mods.Common.Traits
 			public override bool CanTargetFrozenActor(Actor self, FrozenActor target, TargetModifiers modifiers, ref string cursor)
 			{
 				var targetInfo = target.Info.TraitInfoOrDefault<AcceptsDeliveredCashInfo>();
-				if (targetInfo == null || !targetInfo.ValidStances.HasStance(target.Owner.RelationshipWith(self.Owner)))
+				if (targetInfo == null || !targetInfo.ValidRelationships.HasStance(target.Owner.RelationshipWith(self.Owner)))
 					return false;
 
 				if (targetInfo.ValidTypes.Count == 0)

OpenRA.Mods.Common/Traits/DeliversExperience.cs

@@ -109,7 +109,7 @@ namespace OpenRA.Mods.Common.Traits
 					return false;
 
 				var targetInfo = target.Info.TraitInfoOrDefault<AcceptsDeliveredExperienceInfo>();
-				if (targetInfo == null || !targetInfo.ValidStances.HasStance(target.Owner.RelationshipWith(self.Owner)))
+				if (targetInfo == null || !targetInfo.ValidRelationships.HasStance(target.Owner.RelationshipWith(self.Owner)))
 					return false;
 
 				if (targetInfo.ValidTypes.Count == 0)
@@ -129,7 +129,7 @@ namespace OpenRA.Mods.Common.Traits
 					return false;
 
 				var targetInfo = target.Info.TraitInfoOrDefault<AcceptsDeliveredExperienceInfo>();
-				if (targetInfo == null || !targetInfo.ValidStances.HasStance(target.Owner.RelationshipWith(self.Owner)))
+				if (targetInfo == null || !targetInfo.ValidRelationships.HasStance(target.Owner.RelationshipWith(self.Owner)))
 					return false;
 
 				if (targetInfo.ValidTypes.Count == 0)

OpenRA.Mods.Common/Traits/Demolition.cs

@@ -47,8 +47,8 @@ namespace OpenRA.Mods.Common.Traits
 		[Desc("Color to use for the target line.")]
 		public readonly Color TargetLineColor = Color.Crimson;
 
-		public readonly PlayerRelationship TargetStances = PlayerRelationship.Enemy | PlayerRelationship.Neutral;
-		public readonly PlayerRelationship ForceTargetStances = PlayerRelationship.Enemy | PlayerRelationship.Neutral | PlayerRelationship.Ally;
+		public readonly PlayerRelationship TargetRelationships = PlayerRelationship.Enemy | PlayerRelationship.Neutral;
+		public readonly PlayerRelationship ForceTargetRelationships = PlayerRelationship.Enemy | PlayerRelationship.Neutral | PlayerRelationship.Ally;
 
 		[Desc("Cursor to display when hovering over a demolishable target.")]
 		public readonly string Cursor = "c4";
@@ -118,10 +118,10 @@ namespace OpenRA.Mods.Common.Traits
 					return false;
 
 				var stance = target.Owner.RelationshipWith(self.Owner);
-				if (!info.TargetStances.HasStance(stance) && !modifiers.HasModifier(TargetModifiers.ForceAttack))
+				if (!info.TargetRelationships.HasStance(stance) && !modifiers.HasModifier(TargetModifiers.ForceAttack))
 					return false;
 
-				if (!info.ForceTargetStances.HasStance(stance) && modifiers.HasModifier(TargetModifiers.ForceAttack))
+				if (!info.ForceTargetRelationships.HasStance(stance) && modifiers.HasModifier(TargetModifiers.ForceAttack))
 					return false;
 
 				return target.TraitsImplementing<IDemolishable>().Any(i => i.IsValidTarget(target, self));
@@ -130,10 +130,10 @@ namespace OpenRA.Mods.Common.Traits
 			public override bool CanTargetFrozenActor(Actor self, FrozenActor target, TargetModifiers modifiers, ref string cursor)
 			{
 				var stance = target.Owner.RelationshipWith(self.Owner);
-				if (!info.TargetStances.HasStance(stance) && !modifiers.HasModifier(TargetModifiers.ForceAttack))
+				if (!info.TargetRelationships.HasStance(stance) && !modifiers.HasModifier(TargetModifiers.ForceAttack))
 					return false;
 
-				if (!info.ForceTargetStances.HasStance(stance) && modifiers.HasModifier(TargetModifiers.ForceAttack))
+				if (!info.ForceTargetRelationships.HasStance(stance) && modifiers.HasModifier(TargetModifiers.ForceAttack))
 					return false;
 
 				return target.Info.TraitInfos<IDemolishableInfo>().Any(i => i.IsValidTarget(target.Info, self));

OpenRA.Mods.Common/Traits/EngineerRepair.cs

@@ -33,8 +33,8 @@ namespace OpenRA.Mods.Common.Traits
 			"Possible values are Exit, Suicide, Dispose.")]
 		public readonly EnterBehaviour EnterBehaviour = EnterBehaviour.Dispose;
 
-		[Desc("What diplomatic stances allow target to be repaired by this actor.")]
-		public readonly PlayerRelationship ValidStances = PlayerRelationship.Ally;
+		[Desc("What player relationship the target's owner needs to be repaired by this actor.")]
+		public readonly PlayerRelationship ValidRelationships = PlayerRelationship.Ally;
 
 		[Desc("Sound to play when repairing is done.")]
 		public readonly string RepairSound = null;
@@ -117,7 +117,7 @@ namespace OpenRA.Mods.Common.Traits
 				if (!engineerRepairable.Info.Types.IsEmpty && !engineerRepairable.Info.Types.Overlaps(info.Types))
 					return false;
 
-				if (!info.ValidStances.HasStance(target.Owner.RelationshipWith(self.Owner)))
+				if (!info.ValidRelationships.HasStance(target.Owner.RelationshipWith(self.Owner)))
 					return false;
 
 				if (target.GetDamageState() == DamageState.Undamaged)
@@ -139,7 +139,7 @@ namespace OpenRA.Mods.Common.Traits
 				if (!engineerRepairable.Types.IsEmpty && !engineerRepairable.Types.Overlaps(info.Types))
 					return false;
 
-				if (!info.ValidStances.HasStance(target.Owner.RelationshipWith(self.Owner)))
+				if (!info.ValidRelationships.HasStance(target.Owner.RelationshipWith(self.Owner)))
 					return false;
 
 				if (target.DamageState == DamageState.Undamaged)

OpenRA.Mods.Common/Traits/GivesBounty.cs

@@ -23,8 +23,8 @@ namespace OpenRA.Mods.Common.Traits
 		[Desc("Percentage of the killed actor's Cost or CustomSellValue to be given.")]
 		public readonly int Percentage = 10;
 
-		[Desc("Stance the attacking player needs to receive the bounty.")]
-		public readonly PlayerRelationship ValidStances = PlayerRelationship.Neutral | PlayerRelationship.Enemy;
+		[Desc("Player relationships the attacking player needs to receive the bounty.")]
+		public readonly PlayerRelationship ValidRelationships = PlayerRelationship.Neutral | PlayerRelationship.Enemy;
 
 		[Desc("Whether to show a floating text announcing the won bounty.")]
 		public readonly bool ShowBounty = true;
@@ -64,7 +64,7 @@ namespace OpenRA.Mods.Common.Traits
 			if (e.Attacker == null || e.Attacker.Disposed || IsTraitDisabled)
 				return;
 
-			if (!Info.ValidStances.HasStance(e.Attacker.Owner.RelationshipWith(self.Owner)))
+			if (!Info.ValidRelationships.HasStance(e.Attacker.Owner.RelationshipWith(self.Owner)))
 				return;
 
 			if (!Info.DeathTypes.IsEmpty && !e.Damage.DamageTypes.Overlaps(Info.DeathTypes))

OpenRA.Mods.Common/Traits/GivesExperience.cs

@@ -21,8 +21,8 @@ namespace OpenRA.Mods.Common.Traits
 		[Desc("If -1, use the value of the unit cost.")]
 		public readonly int Experience = -1;
 
-		[Desc("Stance the attacking player needs to receive the experience.")]
-		public readonly PlayerRelationship ValidStances = PlayerRelationship.Neutral | PlayerRelationship.Enemy;
+		[Desc("Player relationships the attacking player needs to receive the experience.")]
+		public readonly PlayerRelationship ValidRelationships = PlayerRelationship.Neutral | PlayerRelationship.Enemy;
 
 		[Desc("Percentage of the `Experience` value that is being granted to the killing actor.")]
 		public readonly int ActorExperienceModifier = 10000;
@@ -59,7 +59,7 @@ namespace OpenRA.Mods.Common.Traits
 			if (exp == 0 || e.Attacker == null || e.Attacker.Disposed)
 				return;
 
-			if (!info.ValidStances.HasStance(e.Attacker.Owner.RelationshipWith(self.Owner)))
+			if (!info.ValidRelationships.HasStance(e.Attacker.Owner.RelationshipWith(self.Owner)))
 				return;
 
 			exp = Util.ApplyPercentageModifiers(exp, experienceModifiers);

OpenRA.Mods.Common/Traits/Infantry/ScaredyCat.cs

@@ -9,6 +9,8 @@
  */
 #endregion
 
+using System;
+using System.Collections.Generic;
 using OpenRA.Traits;
 
 namespace OpenRA.Mods.Common.Traits
@@ -28,6 +30,9 @@ namespace OpenRA.Mods.Common.Traits
 		[Desc("Chance (out of 100) the unit has to enter panic mode when attacking.")]
 		public readonly int AttackPanicChance = 20;
 
+		[Desc("The terrain types that this actor should avoid running on to while panicking.")]
+		public readonly HashSet<string> AvoidTerrainTypes = new HashSet<string>();
+
 		[SequenceReference(prefix: true)]
 		public readonly string PanicSequencePrefix = "panic-";
 
@@ -39,6 +44,7 @@ namespace OpenRA.Mods.Common.Traits
 		readonly ScaredyCatInfo info;
 		readonly Mobile mobile;
 		readonly Actor self;
+		readonly Func<CPos, bool> avoidTerrainFilter;
 
 		[Sync]
 		int panicStartedTick;
@@ -52,6 +58,9 @@ namespace OpenRA.Mods.Common.Traits
 			this.self = self;
 			this.info = info;
 			mobile = self.Trait<Mobile>();
+
+			if (info.AvoidTerrainTypes.Count > 0)
+				avoidTerrainFilter = c => info.AvoidTerrainTypes.Contains(self.World.Map.GetTerrainInfo(c).Type);
 		}
 
 		public void Panic()
@@ -79,7 +88,10 @@ namespace OpenRA.Mods.Common.Traits
 			if (!Panicking)
 				return;
 
-			mobile.Nudge(self);
+			// Note: This is just a modified copy of Mobile.Nudge
+			var cell = mobile.GetAdjacentCell(self.Location, avoidTerrainFilter);
+			if (cell != null)
+				self.QueueActivity(false, mobile.MoveTo(cell.Value, 0));
 		}
 
 		void INotifyDamage.Damaged(Actor self, AttackInfo e)

OpenRA.Mods.Common/Traits/JamsMissiles.cs

@@ -19,8 +19,8 @@ namespace OpenRA.Mods.Common.Traits
 		[Desc("Range of the deflection.")]
 		public readonly WDist Range = WDist.Zero;
 
-		[Desc("What diplomatic stances are affected.")]
-		public readonly PlayerRelationship DeflectionStances = PlayerRelationship.Ally | PlayerRelationship.Neutral | PlayerRelationship.Enemy;
+		[Desc("What player relationships are affected.")]
+		public readonly PlayerRelationship DeflectionRelationships = PlayerRelationship.Ally | PlayerRelationship.Neutral | PlayerRelationship.Enemy;
 
 		[Desc("Chance of deflecting missiles.")]
 		public readonly int Chance = 100;
@@ -31,7 +31,7 @@ namespace OpenRA.Mods.Common.Traits
 	public class JamsMissiles : ConditionalTrait<JamsMissilesInfo>
 	{
 		public WDist Range { get { return IsTraitDisabled ? WDist.Zero : Info.Range; } }
-		public PlayerRelationship DeflectionStances { get { return Info.DeflectionStances; } }
+		public PlayerRelationship DeflectionStances { get { return Info.DeflectionRelationships; } }
 		public int Chance { get { return Info.Chance; } }
 
 		public JamsMissiles(JamsMissilesInfo info)

OpenRA.Mods.Common/Traits/Mobile.cs

@@ -364,14 +364,14 @@ namespace OpenRA.Mods.Common.Traits
 				self.QueueActivity(false, MoveTo(cell.Value, 0));
 		}
 
-		public CPos? GetAdjacentCell(CPos nextCell)
+		public CPos? GetAdjacentCell(CPos nextCell, Func<CPos, bool> preferToAvoid = null)
 		{
 			var availCells = new List<CPos>();
 			var notStupidCells = new List<CPos>();
 			foreach (CVec direction in CVec.Directions)
 			{
 				var p = ToCell + direction;
-				if (CanEnterCell(p) && CanStayInCell(p))
+				if (CanEnterCell(p) && CanStayInCell(p) && (preferToAvoid == null || !preferToAvoid(p)))
 					availCells.Add(p);
 				else if (p != nextCell && p != ToCell)
 					notStupidCells.Add(p);

OpenRA.Mods.Common/Traits/Modifiers/FrozenUnderFog.cs

@@ -20,8 +20,8 @@ namespace OpenRA.Mods.Common.Traits
 	[Desc("This actor will remain visible (but not updated visually) under fog, once discovered.")]
 	public class FrozenUnderFogInfo : TraitInfo, Requires<BuildingInfo>, IDefaultVisibilityInfo
 	{
-		[Desc("Players with these stances can always see the actor.")]
-		public readonly PlayerRelationship AlwaysVisibleStances = PlayerRelationship.Ally;
+		[Desc("Players with these relationships can always see the actor.")]
+		public readonly PlayerRelationship AlwaysVisibleRelationships = PlayerRelationship.Ally;
 
 		public override object Create(ActorInitializer init) { return new FrozenUnderFog(init, this); }
 	}
@@ -106,7 +106,7 @@ namespace OpenRA.Mods.Common.Traits
 				return true;
 
 			var stance = self.Owner.RelationshipWith(byPlayer);
-			return info.AlwaysVisibleStances.HasStance(stance) || IsVisibleInner(self, byPlayer);
+			return info.AlwaysVisibleRelationships.HasStance(stance) || IsVisibleInner(self, byPlayer);
 		}
 
 		void ITick.Tick(Actor self)

OpenRA.Mods.Common/Traits/Modifiers/HiddenUnderShroud.cs

@@ -19,8 +19,8 @@ namespace OpenRA.Mods.Common.Traits
 	[Desc("The actor stays invisible under the shroud.")]
 	public class HiddenUnderShroudInfo : TraitInfo, IDefaultVisibilityInfo
 	{
-		[Desc("Players with these stances can always see the actor.")]
-		public readonly PlayerRelationship AlwaysVisibleStances = PlayerRelationship.Ally;
+		[Desc("Players with these relationships can always see the actor.")]
+		public readonly PlayerRelationship AlwaysVisibleRelationships = PlayerRelationship.Ally;
 
 		[Desc("Possible values are CenterPosition (reveal when the center is visible) and ",
 			"Footprint (reveal when any footprint cell is visible).")]
@@ -56,7 +56,7 @@ namespace OpenRA.Mods.Common.Traits
 				return true;
 
 			var stance = self.Owner.RelationshipWith(byPlayer);
-			return Info.AlwaysVisibleStances.HasStance(stance) || IsVisibleInner(self, byPlayer);
+			return Info.AlwaysVisibleRelationships.HasStance(stance) || IsVisibleInner(self, byPlayer);
 		}
 
 		IEnumerable<IRenderable> IRenderModifier.ModifyRender(Actor self, WorldRenderer wr, IEnumerable<IRenderable> r)

OpenRA.Mods.Common/Traits/Player/MissionObjectives.cs

@@ -12,6 +12,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using OpenRA.Graphics;
 using OpenRA.Traits;
 
 namespace OpenRA.Mods.Common.Traits
@@ -58,15 +59,19 @@ namespace OpenRA.Mods.Common.Traits
 		[NotificationReference("Speech")]
 		public readonly string LeaveNotification = null;
 
-		public override object Create(ActorInitializer init) { return new MissionObjectives(init.World, this); }
+		public override object Create(ActorInitializer init) { return new MissionObjectives(init.Self.Owner, this); }
 	}
 
-	public class MissionObjectives : INotifyWinStateChanged, ISync, IResolveOrder
+	public class MissionObjectives : INotifyWinStateChanged, ISync, IResolveOrder, IWorldLoaded
 	{
 		public readonly MissionObjectivesInfo Info;
 		readonly List<MissionObjective> objectives = new List<MissionObjective>();
+		readonly Player player;
 		public ReadOnlyList<MissionObjective> Objectives;
 
+		Player[] enemies;
+		Player[] allies;
+
 		[Sync]
 		public int ObjectivesHash
 		{
@@ -83,12 +88,21 @@ namespace OpenRA.Mods.Common.Traits
 		// The player's WinState is only updated when his allies have all completed their objective as well.
 		public WinState WinStateCooperative { get; private set; }
 
-		public MissionObjectives(World world, MissionObjectivesInfo info)
+		public MissionObjectives(Player player, MissionObjectivesInfo info)
 		{
 			Info = info;
+			this.player = player;
 			Objectives = new ReadOnlyList<MissionObjective>(objectives);
 		}
 
+		void IWorldLoaded.WorldLoaded(World w, WorldRenderer wr)
+		{
+			// Players and NonCombatants are fixed once the game starts, but the result of IsAlliedWith
+			// may change once players are marked as spectators, so cache these
+			allies = player.World.Players.Where(p => !p.NonCombatant && player.IsAlliedWith(p)).ToArray();
+			enemies = player.World.Players.Where(p => !p.NonCombatant && player.RelationshipWith(p) == PlayerRelationship.Enemy).ToArray();
+		}
+
 		public int Add(Player player, string description, string type, bool required = true, bool inhibitAnnouncement = false)
 		{
 			var newID = objectives.Count;
@@ -140,10 +154,9 @@ namespace OpenRA.Mods.Common.Traits
 
 		void CheckIfGameIsOver(Player player)
 		{
-			var players = player.World.Players.Where(p => !p.NonCombatant);
-
-			var gameOver = players.All(p => p.WinState != WinState.Undefined || !p.HasObjectives);
+			var gameOver = player.World.Players.All(p => p.NonCombatant || p.WinState != WinState.Undefined || !p.HasObjectives);
 			if (gameOver)
+			{
 				Game.RunAfterDelay(Info.GameOverDelay, () =>
 				{
 					if (!Game.IsCurrentWorld(player.World))
@@ -153,17 +166,14 @@ namespace OpenRA.Mods.Common.Traits
 					player.World.SetPauseState(true);
 					player.World.PauseStateLocked = true;
 				});
+			}
 		}
 
 		void INotifyWinStateChanged.OnPlayerWon(Player player)
 		{
-			var players = player.World.Players.Where(p => !p.NonCombatant);
-			var enemies = players.Where(p => !p.IsAlliedWith(player));
-
 			if (Info.Cooperative)
 			{
 				WinStateCooperative = WinState.Won;
-				var allies = players.Where(p => p.IsAlliedWith(player));
 
 				if (allies.All(p => p.PlayerActor.Trait<MissionObjectives>().WinStateCooperative == WinState.Won))
 				{
@@ -193,13 +203,9 @@ namespace OpenRA.Mods.Common.Traits
 
 		void INotifyWinStateChanged.OnPlayerLost(Player player)
 		{
-			var players = player.World.Players.Where(p => !p.NonCombatant);
-			var enemies = players.Where(p => !p.IsAlliedWith(player));
-
 			if (Info.Cooperative)
 			{
 				WinStateCooperative = WinState.Lost;
-				var allies = players.Where(p => p.IsAlliedWith(player));
 
 				if (allies.Any(p => p.PlayerActor.Trait<MissionObjectives>().WinStateCooperative == WinState.Lost))
 				{

OpenRA.Mods.Common/Traits/Radar/AppearsOnRadar.cs

@@ -20,8 +20,8 @@ namespace OpenRA.Mods.Common.Traits.Radar
 	{
 		public readonly bool UseLocation = false;
 
-		[Desc("Player stances who can view this actor on radar.")]
-		public readonly PlayerRelationship ValidStances = PlayerRelationship.Ally | PlayerRelationship.Neutral | PlayerRelationship.Enemy;
+		[Desc("Player relationships who can view this actor on radar.")]
+		public readonly PlayerRelationship ValidRelationships = PlayerRelationship.Ally | PlayerRelationship.Neutral | PlayerRelationship.Enemy;
 
 		public override object Create(ActorInitializer init) { return new AppearsOnRadar(this); }
 	}
@@ -42,7 +42,7 @@ namespace OpenRA.Mods.Common.Traits.Radar
 		public void PopulateRadarSignatureCells(Actor self, List<(CPos Cell, Color Color)> destinationBuffer)
 		{
 			var viewer = self.World.RenderPlayer ?? self.World.LocalPlayer;
-			if (IsTraitDisabled || (viewer != null && !Info.ValidStances.HasStance(self.Owner.RelationshipWith(viewer))))
+			if (IsTraitDisabled || (viewer != null && !Info.ValidRelationships.HasStance(self.Owner.RelationshipWith(viewer))))
 				return;
 
 			var color = Game.Settings.Game.UsePlayerStanceColors ? self.Owner.PlayerStanceColor(self) : self.Owner.Color;

OpenRA.Mods.Common/Traits/Render/CashTricklerBar.cs

@@ -20,7 +20,7 @@ namespace OpenRA.Mods.Common.Traits.Render
 	class CashTricklerBarInfo : TraitInfo, Requires<CashTricklerInfo>
 	{
 		[Desc("Defines to which players the bar is to be shown.")]
-		public readonly PlayerRelationship DisplayStances = PlayerRelationship.Ally;
+		public readonly PlayerRelationship DisplayRelationships = PlayerRelationship.Ally;
 
 		public readonly Color Color = Color.Magenta;
 
@@ -43,7 +43,7 @@ namespace OpenRA.Mods.Common.Traits.Render
 		float ISelectionBar.GetValue()
 		{
 			var viewer = self.World.RenderPlayer ?? self.World.LocalPlayer;
-			if (viewer != null && !info.DisplayStances.HasStance(self.Owner.RelationshipWith(viewer)))
+			if (viewer != null && !info.DisplayRelationships.HasStance(self.Owner.RelationshipWith(viewer)))
 				return 0;
 
 			var complete = cashTricklers.Min(ct => (float)ct.Ticks / ct.Info.Interval);

OpenRA.Mods.Common/Traits/Render/SupportPowerChargeBar.cs

@@ -19,7 +19,7 @@ namespace OpenRA.Mods.Common.Traits.Render
 	class SupportPowerChargeBarInfo : ConditionalTraitInfo
 	{
 		[Desc("Defines to which players the bar is to be shown.")]
-		public readonly PlayerRelationship DisplayStances = PlayerRelationship.Ally;
+		public readonly PlayerRelationship DisplayRelationships = PlayerRelationship.Ally;
 
 		public readonly Color Color = Color.Magenta;
 
@@ -48,7 +48,7 @@ namespace OpenRA.Mods.Common.Traits.Render
 				return 0;
 
 			var viewer = self.World.RenderPlayer ?? self.World.LocalPlayer;
-			if (viewer != null && !Info.DisplayStances.HasStance(self.Owner.RelationshipWith(viewer)))
+			if (viewer != null && !Info.DisplayRelationships.HasStance(self.Owner.RelationshipWith(viewer)))
 				return 0;
 
 			return 1 - (float)power.RemainingTicks / power.TotalTicks;

OpenRA.Mods.Common/Traits/Render/WithDecorationBase.cs

@@ -24,8 +24,8 @@ namespace OpenRA.Mods.Common.Traits.Render
 		[Desc("Position in the actor's selection box to draw the decoration.")]
 		public readonly string Position = "TopLeft";
 
-		[Desc("Player stances who can view the decoration.")]
-		public readonly PlayerRelationship ValidStances = PlayerRelationship.Ally;
+		[Desc("Player relationships who can view the decoration.")]
+		public readonly PlayerRelationship ValidRelationships = PlayerRelationship.Ally;
 
 		[Desc("Should this be visible only when selected?")]
 		public readonly bool RequiresSelection = false;
@@ -82,7 +82,7 @@ namespace OpenRA.Mods.Common.Traits.Render
 			if (self.World.RenderPlayer != null)
 			{
 				var stance = self.Owner.RelationshipWith(self.World.RenderPlayer);
-				if (!Info.ValidStances.HasStance(stance))
+				if (!Info.ValidRelationships.HasStance(stance))
 					return false;
 			}
 

OpenRA.Mods.Common/Traits/Render/WithInfantryBody.cs

@@ -148,7 +148,12 @@ namespace OpenRA.Mods.Common.Traits.Render
 
 		void INotifyAttack.PreparingAttack(Actor self, in Target target, Armament a, Barrel barrel)
 		{
-			Attacking(self, target, a);
+			// Lambdas can't use 'in' variables, so capture a copy for later
+			var attackTarget = target;
+
+			// HACK: The FrameEndTask makes sure that this runs after Tick(), preventing that from
+			// overriding the animation when an infantry unit stops to attack
+			self.World.AddFrameEndTask(_ => Attacking(self, attackTarget, a));
 		}
 
 		void INotifyAttack.Attacking(Actor self, in Target target, Armament a, Barrel barrel) { }
@@ -160,10 +165,6 @@ namespace OpenRA.Mods.Common.Traits.Render
 
 		protected virtual void Tick(Actor self)
 		{
-			// Attacking takes care of reverting back to PlayStandAnimation
-			if (state == AnimationState.Attacking)
-				return;
-
 			if (rsm != null)
 			{
 				if (wasModifying != rsm.IsModifyingSequence)

OpenRA.Mods.Common/Traits/Render/WithRangeCircle.cs

@@ -40,9 +40,9 @@ namespace OpenRA.Mods.Common.Traits.Render
 		[Desc("If set, the color of the owning player will be used instead of `Color`.")]
 		public readonly bool UsePlayerColor = false;
 
-		[Desc("Stances of players which will be able to see the circle.",
+		[Desc("Player relationships which will be able to see the circle.",
 			"Valid values are combinations of `None`, `Ally`, `Enemy` and `Neutral`.")]
-		public readonly PlayerRelationship ValidStances = PlayerRelationship.Ally;
+		public readonly PlayerRelationship ValidRelationships = PlayerRelationship.Ally;
 
 		[Desc("When to show the range circle. Valid values are `Always`, and `WhenSelected`")]
 		public readonly RangeCircleVisibility Visible = RangeCircleVisibility.WhenSelected;
@@ -91,7 +91,7 @@ namespace OpenRA.Mods.Common.Traits.Render
 					return false;
 
 				var p = self.World.RenderPlayer;
-				return p == null || Info.ValidStances.HasStance(self.Owner.RelationshipWith(p)) || (p.Spectating && !p.NonCombatant);
+				return p == null || Info.ValidRelationships.HasStance(self.Owner.RelationshipWith(p)) || (p.Spectating && !p.NonCombatant);
 			}
 		}
 

OpenRA.Mods.Common/Traits/RevealOnDeath.cs

@@ -18,8 +18,8 @@ namespace OpenRA.Mods.Common.Traits
 	[Desc("Reveal this actor's last position when killed.")]
 	public class RevealOnDeathInfo : ConditionalTraitInfo
 	{
-		[Desc("Stances relative to the actors' owner that shroud will be revealed for.")]
-		public readonly PlayerRelationship RevealForStances = PlayerRelationship.Ally;
+		[Desc("Relationships relative to the actors' owner that shroud will be revealed for.")]
+		public readonly PlayerRelationship RevealForRelationships = PlayerRelationship.Ally;
 
 		[Desc("Duration of the reveal.")]
 		public readonly int Duration = 25;
@@ -66,7 +66,7 @@ namespace OpenRA.Mods.Common.Traits
 
 					w.Add(new RevealShroudEffect(self.CenterPosition, info.Radius,
 						info.RevealGeneratedShroud ? Shroud.SourceType.Visibility : Shroud.SourceType.PassiveVisibility,
-						owner, info.RevealForStances, duration: info.Duration));
+						owner, info.RevealForRelationships, duration: info.Duration));
 				});
 			}
 		}

OpenRA.Mods.Common/Traits/RevealOnFire.cs

@@ -21,8 +21,8 @@ namespace OpenRA.Mods.Common.Traits
 		[Desc("The armament types which trigger revealing.")]
 		public readonly string[] ArmamentNames = { "primary", "secondary" };
 
-		[Desc("Stances relative to the target player this actor will be revealed to during firing.")]
-		public readonly PlayerRelationship RevealForStancesRelativeToTarget = PlayerRelationship.Ally;
+		[Desc("Player relationships relative to the target player this actor will be revealed to during firing.")]
+		public readonly PlayerRelationship RevealForRelationships = PlayerRelationship.Ally;
 
 		[Desc("Duration of the reveal.")]
 		public readonly int Duration = 25;
@@ -60,7 +60,7 @@ namespace OpenRA.Mods.Common.Traits
 			{
 				self.World.AddFrameEndTask(w => w.Add(new RevealShroudEffect(self.CenterPosition, info.Radius,
 					info.RevealGeneratedShroud ? Shroud.SourceType.Visibility : Shroud.SourceType.PassiveVisibility,
-					targetPlayer, info.RevealForStancesRelativeToTarget, duration: info.Duration)));
+					targetPlayer, info.RevealForRelationships, duration: info.Duration)));
 			}
 		}
 

OpenRA.Mods.Common/Traits/RevealsMap.cs

@@ -16,8 +16,8 @@ namespace OpenRA.Mods.Common.Traits
 	[Desc("Reveals shroud and fog across the whole map while active.")]
 	public class RevealsMapInfo : ConditionalTraitInfo
 	{
-		[Desc("Stance the watching player needs to see the shroud removed.")]
-		public readonly PlayerRelationship ValidStances = PlayerRelationship.Ally;
+		[Desc("Relationships the watching player needs to see the shroud removed.")]
+		public readonly PlayerRelationship ValidRelationships = PlayerRelationship.Ally;
 
 		[Desc("Can this actor reveal shroud generated by the `GeneratesShroud` trait?")]
 		public readonly bool RevealGeneratedShroud = true;
@@ -38,7 +38,7 @@ namespace OpenRA.Mods.Common.Traits
 
 		protected void AddCellsToPlayerShroud(Actor self, Player p, PPos[] uv)
 		{
-			if (!Info.ValidStances.HasStance(self.Owner.RelationshipWith(p)))
+			if (!Info.ValidRelationships.HasStance(self.Owner.RelationshipWith(p)))
 				return;
 
 			p.Shroud.AddSource(this, type, uv);

OpenRA.Mods.Common/Traits/RevealsShroud.cs

@@ -17,8 +17,8 @@ namespace OpenRA.Mods.Common.Traits
 {
 	public class RevealsShroudInfo : AffectsShroudInfo
 	{
-		[Desc("Stance the watching player needs to see the shroud removed.")]
-		public readonly PlayerRelationship ValidStances = PlayerRelationship.Ally;
+		[Desc("Relationships the watching player needs to see the shroud removed.")]
+		public readonly PlayerRelationship ValidRelationships = PlayerRelationship.Ally;
 
 		[Desc("Can this actor reveal shroud generated by the GeneratesShroud trait?")]
 		public readonly bool RevealGeneratedShroud = true;
@@ -49,7 +49,7 @@ namespace OpenRA.Mods.Common.Traits
 
 		protected override void AddCellsToPlayerShroud(Actor self, Player p, PPos[] uv)
 		{
-			if (!info.ValidStances.HasStance(self.Owner.RelationshipWith(p)))
+			if (!info.ValidRelationships.HasStance(self.Owner.RelationshipWith(p)))
 				return;
 
 			p.Shroud.AddSource(this, type, uv);

OpenRA.Mods.Common/Traits/Sound/VoiceAnnouncement.cs

@@ -21,8 +21,8 @@ namespace OpenRA.Mods.Common.Traits.Sound
 		[Desc("Voice to play.")]
 		public readonly string Voice = null;
 
-		[Desc("Player stances who can hear this voice.")]
-		public readonly PlayerRelationship ValidStances = PlayerRelationship.Ally | PlayerRelationship.Neutral | PlayerRelationship.Enemy;
+		[Desc("Player relationships who can hear this voice.")]
+		public readonly PlayerRelationship ValidRelationships = PlayerRelationship.Ally | PlayerRelationship.Neutral | PlayerRelationship.Enemy;
 
 		[Desc("Play the voice to the owning player even if Stance.Ally is not included in ValidStances.")]
 		public readonly bool PlayToOwner = true;
@@ -53,7 +53,7 @@ namespace OpenRA.Mods.Common.Traits.Sound
 			if (player == null)
 				return;
 
-			if (Info.ValidStances.HasStance(self.Owner.RelationshipWith(player)))
+			if (Info.ValidRelationships.HasStance(self.Owner.RelationshipWith(player)))
 				self.PlayVoice(Info.Voice);
 			else if (Info.PlayToOwner && self.Owner == player)
 				self.PlayVoice(Info.Voice);

OpenRA.Mods.Common/Traits/SupportPowers/GrantExternalConditionPower.cs

@@ -39,8 +39,8 @@ namespace OpenRA.Mods.Common.Traits
 		[Desc("Sound to instantly play at the targeted area.")]
 		public readonly string OnFireSound = null;
 
-		[Desc("Player stances which condition can be applied to.")]
-		public readonly PlayerRelationship ValidStances = PlayerRelationship.Ally;
+		[Desc("Player relationships which condition can be applied to.")]
+		public readonly PlayerRelationship ValidRelationships = PlayerRelationship.Ally;
 
 		[SequenceReference]
 		[Desc("Sequence to play for granting actor when activated.",
@@ -96,7 +96,7 @@ namespace OpenRA.Mods.Common.Traits
 
 			return units.Distinct().Where(a =>
 			{
-				if (!info.ValidStances.HasStance(Self.Owner.RelationshipWith(a.Owner)))
+				if (!info.ValidRelationships.HasStance(Self.Owner.RelationshipWith(a.Owner)))
 					return false;
 
 				return a.TraitsImplementing<ExternalCondition>()

OpenRA.Mods.Common/Traits/SupportPowers/NukePower.cs

@@ -94,8 +94,8 @@ namespace OpenRA.Mods.Common.Traits
 		[Desc("Can the camera reveal shroud generated by the GeneratesShroud trait?")]
 		public readonly bool RevealGeneratedShroud = true;
 
-		[Desc("Reveal cells to players with these stances only.")]
-		public readonly PlayerRelationship CameraStances = PlayerRelationship.Ally;
+		[Desc("Reveal cells to players with these relationships only.")]
+		public readonly PlayerRelationship CameraRelationships = PlayerRelationship.Ally;
 
 		[Desc("Amount of time before detonation to spawn the camera.")]
 		public readonly int CameraSpawnAdvance = 25;
@@ -180,7 +180,7 @@ namespace OpenRA.Mods.Common.Traits
 				var type = info.RevealGeneratedShroud ? Shroud.SourceType.Visibility
 					: Shroud.SourceType.PassiveVisibility;
 
-				self.World.AddFrameEndTask(w => w.Add(new RevealShroudEffect(targetPosition, info.CameraRange, type, self.Owner, info.CameraStances,
+				self.World.AddFrameEndTask(w => w.Add(new RevealShroudEffect(targetPosition, info.CameraRange, type, self.Owner, info.CameraRelationships,
 					info.FlightDelay - info.CameraSpawnAdvance, info.CameraSpawnAdvance + info.CameraRemoveDelay)));
 			}
 

OpenRA.Mods.Common/Traits/SupportPowers/SupportPower.cs

@@ -77,7 +77,7 @@ namespace OpenRA.Mods.Common.Traits
 		public readonly string IncomingSpeechNotification = null;
 
 		[Desc("Defines to which players the timer is shown.")]
-		public readonly PlayerRelationship DisplayTimerStances = PlayerRelationship.None;
+		public readonly PlayerRelationship DisplayTimerRelationships = PlayerRelationship.None;
 
 		[Desc("Beacons are only supported on the Airstrike, Paratroopers, and Nuke powers")]
 		public readonly bool DisplayBeacon = false;

OpenRA.Mods.Common/Traits/TooltipDescription.cs

@@ -20,8 +20,8 @@ namespace OpenRA.Mods.Common.Traits
 		[Translate]
 		public readonly string Description = "";
 
-		[Desc("Player stances who can view the description.")]
-		public readonly PlayerRelationship ValidStances = PlayerRelationship.Ally | PlayerRelationship.Neutral | PlayerRelationship.Enemy;
+		[Desc("Player relationships who can view the description.")]
+		public readonly PlayerRelationship ValidRelationships = PlayerRelationship.Ally | PlayerRelationship.Neutral | PlayerRelationship.Enemy;
 
 		public override object Create(ActorInitializer init) { return new TooltipDescription(init.Self, this); }
 	}
@@ -53,7 +53,7 @@ namespace OpenRA.Mods.Common.Traits
 			if (Owner == null || forPlayer == null)
 				return false;
 
-			return Info.ValidStances.HasStance(Owner.RelationshipWith(forPlayer));
+			return Info.ValidRelationships.HasStance(Owner.RelationshipWith(forPlayer));
 		}
 
 		public string TooltipText

OpenRA.Mods.Common/Traits/Wanders.cs

@@ -9,6 +9,8 @@
  */
 #endregion
 
+using System.Collections.Generic;
+using System.Linq;
 using OpenRA.Traits;
 
 namespace OpenRA.Mods.Common.Traits
@@ -27,6 +29,9 @@ namespace OpenRA.Mods.Common.Traits
 		[Desc("Maximum amount of ticks the actor will sit idly before starting to wander.")]
 		public readonly int MaxMoveDelay = 0;
 
+		[Desc("The terrain types that this actor should avoid wandering on to.")]
+		public readonly HashSet<string> AvoidTerrainTypes = new HashSet<string>();
+
 		public override object Create(ActorInitializer init) { return new Wanders(init.Self, this); }
 	}
 
@@ -75,8 +80,8 @@ namespace OpenRA.Mods.Common.Traits
 				return;
 
 			var targetCell = PickTargetLocation();
-			if (targetCell != CPos.Zero)
-				DoAction(self, targetCell);
+			if (targetCell.HasValue)
+				DoAction(self, targetCell.Value);
 		}
 
 		void INotifyIdle.TickIdle(Actor self)
@@ -84,7 +89,7 @@ namespace OpenRA.Mods.Common.Traits
 			TickIdle(self);
 		}
 
-		CPos PickTargetLocation()
+		CPos? PickTargetLocation()
 		{
 			var target = self.CenterPosition + new WVec(0, -1024 * effectiveMoveRadius, 0).Rotate(WRot.FromFacing(self.World.SharedRandom.Next(255)));
 			var targetCell = self.World.Map.CellContaining(target);
@@ -95,7 +100,15 @@ namespace OpenRA.Mods.Common.Traits
 				if (++ticksIdle % info.ReduceMoveRadiusDelay == 0)
 					effectiveMoveRadius--;
 
-				return CPos.Zero; // We'll be back the next tick; better to sit idle for a few seconds than prolong this tick indefinitely with a loop
+				// We'll be back the next tick; better to sit idle for a few seconds than prolong this tick indefinitely with a loop
+				return null;
+			}
+
+			if (info.AvoidTerrainTypes.Count > 0)
+			{
+				var terrainType = self.World.Map.GetTerrainInfo(targetCell).Type;
+				if (Info.AvoidTerrainTypes.Contains(terrainType))
+					return null;
 			}
 
 			ticksIdle = 0;

OpenRA.Mods.Common/Traits/World/CreateMPPlayers.cs

@@ -60,6 +60,8 @@ namespace OpenRA.Mods.Common.Traits
 					IsBot = client.Bot != null,
 					FactionName = resolvedFaction.Name,
 					FactionId = resolvedFaction.InternalName,
+					DisplayFactionName = clientFaction.Name,
+					DisplayFactionId = clientFaction.InternalName,
 					Color = client.Color,
 					Team = client.Team,
 					SpawnPoint = resolvedSpawnPoint,

OpenRA.Mods.Common/Traits/World/EditorCursorLayer.cs

@@ -78,10 +78,7 @@ namespace OpenRA.Mods.Common.Traits
 							for (var x = 0; x < TerrainTemplate.Size.X; x++)
 							{
 								var tile = new TerrainTile(TerrainTemplate.Id, (byte)i++);
-								var tileInfo = world.Map.Rules.TileSet.GetTileInfo(tile);
-
-								// Empty tile
-								if (tileInfo == null)
+								if (!world.Map.Rules.TileSet.TryGetTileInfo(tile, out var tileInfo))
 									continue;
 
 								var sprite = wr.Theater.TileSprite(tile, 0);

OpenRA.Mods.Common/UpdateRules/Rules/20200503/RenameStances.cs

@@ -0,0 +1,104 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2020 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;
+
+namespace OpenRA.Mods.Common.UpdateRules.Rules
+{
+	public class RenameStances : UpdateRule
+    {
+		public override string Name { get { return "Renamed player 'Stances' to 'Relationships'."; } }
+		public override string Description
+		{
+			get
+			{
+				return "'Stances' in regards to a player have been renamed to 'Relationships'.\n" +
+					"The yaml values did not change.";
+			}
+		}
+
+		readonly (string TraitName, string OldName, string NewName)[] traits =
+		{
+			("Disguise", "ValidStances", "ValidRelationships"),
+			("Infiltrates", "ValidStances", "ValidRelationships"),
+			("AcceptsDeliveredCash", "ValidStances", "ValidRelationships"),
+			("AcceptsDeliveredExperience", "ValidStances", "ValidRelationships"),
+			("Armament", "TargetStances", "TargetRelationships"),
+			("Armament", "ForceTargetStances", "ForceTargetRelationships"),
+			("AutoTargetPriority", "ValidStances", "ValidRelationships"),
+			("CaptureManagerBotModule", "CapturableStances", "CapturableRelationships"),
+			("Capturable", "ValidStances", "ValidRelationships"),
+			("Captures", "PlayerExperienceStances", "PlayerExperienceRelationships"),
+			("ProximityExternalCondition", "ValidStances", "ValidRelationships"),
+			("CreatesShroud", "ValidStances", "ValidRelationships"),
+			("Demolition", "TargetStances", "TargetRelationships"),
+			("Demolition", "ForceTargetStances", "ForceTargetRelationships"),
+			("EngineerRepair", "ValidStances", "ValidRelationships"),
+			("GivesBounty", "ValidStances", "ValidRelationships"),
+			("GivesExperience", "ValidStances", "ValidRelationships"),
+			("JamsMissiles", "DeflectionStances", "DeflectionRelationships"),
+			("FrozenUnderFog", "AlwaysVisibleStances", "AlwaysVisibleRelationships"),
+			("HiddenUnderShroud", "AlwaysVisibleStances", "AlwaysVisibleRelationships"),
+			("HiddenUnderFog", "AlwaysVisibleStances", "AlwaysVisibleRelationships"),
+			("AppearsOnRadar", "ValidStances", "ValidRelationships"),
+			("CashTricklerBar", "DisplayStances", "DisplayRelationships"),
+			("SupportPowerChargeBar", "DisplayStances", "DisplayRelationships"),
+			("WithAmmoPipsDecoration", "ValidStances", "ValidRelationships"),
+			("WithCargoPipsDecoration", "ValidStances", "ValidRelationships"),
+			("WithDecoration", "ValidStances", "ValidRelationships"),
+			("WithHarvesterPipsDecoration", "ValidStances", "ValidRelationships"),
+			("WithNameTagDecoration", "ValidStances", "ValidRelationships"),
+			("WithResourceStoragePipsDecoration", "ValidStances", "ValidRelationships"),
+			("WithTextDecoration", "ValidStances", "ValidRelationships"),
+			("WithRangeCircle", "ValidStances", "ValidRelationships"),
+			("RevealOnDeath", "RevealForStances", "RevealForRelationships"),
+			("RevealOnFire", "RevealForStancesRelativeToTarget", "RevealForRelationships"),
+			("RevealsMap", "ValidStances", "ValidRelationships"),
+			("RevealsShroud", "ValidStances", "ValidRelationships"),
+			("VoiceAnnouncement", "ValidStances", "ValidRelationships"),
+			("GrantExternalConditionPower", "ValidStances", "ValidRelationships"),
+			("NukePower", "CameraStances", "CameraRelationships"),
+			("NukePower", "DisplayTimerStances", "DisplayTimerRelationships"),
+			("AttackOrderPower", "DisplayTimerStances", "DisplayTimerRelationships"),
+			("ChronoshiftPower", "DisplayTimerStances", "DisplayTimerRelationships"),
+			("DropPodsPower", "DisplayTimerStances", "DisplayTimerRelationships"),
+			("GpsPower", "DisplayTimerStances", "DisplayTimerRelationships"),
+			("GrantPrerequisiteChargeDrainPower", "DisplayTimerStances", "DisplayTimerRelationships"),
+			("IonCannonPower", "DisplayTimerStances", "DisplayTimerRelationships"),
+			("AirstrikePower", "DisplayTimerStances", "DisplayTimerRelationships"),
+			("GrantExternalConditionPower", "DisplayTimerStances", "DisplayTimerRelationships"),
+			("ParatroopersPower", "DisplayTimerStances", "DisplayTimerRelationships"),
+			("ProduceActorPower", "DisplayTimerStances", "DisplayTimerRelationships"),
+			("SpawnActorPower", "DisplayTimerStances", "DisplayTimerRelationships"),
+			("TooltipDescription", "ValidStances", "ValidRelationships")
+		};
+
+		public override IEnumerable<string> UpdateActorNode(ModData modData, MiniYamlNode actorNode)
+		{
+			foreach (var field in traits)
+				foreach (var traitNode in actorNode.ChildrenMatching(field.TraitName))
+					traitNode.RenameChildrenMatching(field.OldName, field.NewName);
+
+			yield break;
+		}
+
+		public override IEnumerable<string> UpdateWeaponNode(ModData modData, MiniYamlNode weaponNode)
+		{
+			foreach (var projectileNode in weaponNode.ChildrenMatching("Projectile"))
+				projectileNode.RenameChildrenMatching("ValidBounceBlockerStances", "ValidBounceBlockerRelationships");
+
+			foreach (var warheadNode in weaponNode.ChildrenMatching("Warhead"))
+				warheadNode.RenameChildrenMatching("ValidStances", "ValidRelationships");
+
+			yield break;
+		}
+	}
+}

OpenRA.Mods.Common/UpdateRules/UpdatePath.cs

@@ -73,6 +73,7 @@ namespace OpenRA.Mods.Common.UpdateRules
 				new RenameSelfHealing(),
 				new ReplaceBurns(),
 				new RemoveMuzzleSplitFacings(),
+				new RenameStances(),
 				new RemoveTurnToDock(),
 				new RenameSmudgeSmokeFields(),
 				new RenameCircleContrast(),

OpenRA.Mods.Common/UtilityCommands/DebugChromeRegions.cs

@@ -104,6 +104,7 @@ namespace OpenRA.Mods.Common.UtilityCommands
 			"		for (var j = 0; j < ctx.canvas.height / 4; j++)",
 			"			for (var i = j % 2; i < ctx.canvas.width / 4; i += 2)",
 			"				ctx.fillRect(4 * i, 4 * j, 4, 4);",
+			"		ctx.imageSmoothingEnabled = false;",
 			"		ctx.drawImage(image, 0, 0, c.width, c.height);",
 			"		ctx.strokeStyle = \"#ffff00\";",
 			"		ctx.lineWidth = 1;",

OpenRA.Mods.Common/Warheads/CreateEffectWarhead.cs

@@ -80,7 +80,7 @@ namespace OpenRA.Mods.Common.Warheads
 		public override bool IsValidAgainst(Actor victim, Actor firedBy)
 		{
 			var stance = firedBy.Owner.RelationshipWith(victim.Owner);
-			if (!ValidStances.HasStance(stance))
+			if (!ValidRelationships.HasStance(stance))
 				return false;
 
 			// A target type is valid if it is in the valid targets list, and not in the invalid targets list.

OpenRA.Mods.Common/Warheads/Warhead.cs

@@ -31,8 +31,8 @@ namespace OpenRA.Mods.Common.Warheads
 		[Desc("What types of targets are unaffected.", "Overrules ValidTargets.")]
 		public readonly BitSet<TargetableType> InvalidTargets;
 
-		[Desc("What diplomatic stances are affected.")]
-		public readonly PlayerRelationship ValidStances = PlayerRelationship.Ally | PlayerRelationship.Neutral | PlayerRelationship.Enemy;
+		[Desc("What player relationships are affected.")]
+		public readonly PlayerRelationship ValidRelationships = PlayerRelationship.Ally | PlayerRelationship.Neutral | PlayerRelationship.Enemy;
 
 		[Desc("Can this warhead affect the actor that fired it.")]
 		public readonly bool AffectsParent = false;
@@ -63,7 +63,7 @@ namespace OpenRA.Mods.Common.Warheads
 				return false;
 
 			var stance = firedBy.Owner.RelationshipWith(victim.Owner);
-			if (!ValidStances.HasStance(stance))
+			if (!ValidRelationships.HasStance(stance))
 				return false;
 
 			// A target type is valid if it is in the valid targets list, and not in the invalid targets list.
@@ -81,7 +81,7 @@ namespace OpenRA.Mods.Common.Warheads
 
 			// AffectsParent checks do not make sense for FrozenActors, so skip to stance checks
 			var stance = firedBy.Owner.RelationshipWith(victim.Owner);
-			if (!ValidStances.HasStance(stance))
+			if (!ValidRelationships.HasStance(stance))
 				return false;
 
 			// A target type is valid if it is in the valid targets list, and not in the invalid targets list.

OpenRA.Mods.Common/Widgets/SupportPowerTimerWidget.cs

@@ -36,7 +36,7 @@ namespace OpenRA.Mods.Common.Widgets
 			powers = world.ActorsWithTrait<SupportPowerManager>()
 				.Where(p => !p.Actor.IsDead && !p.Actor.Owner.NonCombatant)
 				.SelectMany(s => s.Trait.Powers.Values)
-				.Where(p => p.Instances.Any() && p.Info.DisplayTimerStances != PlayerRelationship.None && !p.Disabled);
+				.Where(p => p.Instances.Any() && p.Info.DisplayTimerRelationships != PlayerRelationship.None && !p.Disabled);
 
 			// Timers in replays should be synced to the effective game time, not the playback time.
 			timestep = world.Timestep;
@@ -53,7 +53,7 @@ namespace OpenRA.Mods.Common.Widgets
 			{
 				var owner = p.Instances[0].Self.Owner;
 				var viewer = owner.World.RenderPlayer ?? owner.World.LocalPlayer;
-				return viewer == null || p.Info.DisplayTimerStances.HasStance(owner.RelationshipWith(viewer));
+				return viewer == null || p.Info.DisplayTimerRelationships.HasStance(owner.RelationshipWith(viewer));
 			});
 
 			texts = displayedPowers.Select(p =>

OpenRA.Mods.Common/Widgets/TerrainTemplatePreviewWidget.cs

@@ -81,10 +81,7 @@ namespace OpenRA.Mods.Common.Widgets
 				for (var x = 0; x < Template.Size.X; x++)
 				{
 					var tile = new TerrainTile(Template.Id, (byte)(i++));
-					var tileInfo = tileset.GetTileInfo(tile);
-
-					// Empty tile
-					if (tileInfo == null)
+					if (!tileset.TryGetTileInfo(tile, out var tileInfo))
 						continue;
 
 					var sprite = worldRenderer.Theater.TileSprite(tile, 0);

OpenRA.Mods.D2k/OpenRA.Mods.D2k.csproj

@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFramework>net472</TargetFramework>
+    <TargetFramework>netstandard2.1</TargetFramework>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <Optimize>true</Optimize>
     <LangVersion>7.3</LangVersion>
@@ -11,6 +11,7 @@
     <PlatformTarget>AnyCPU</PlatformTarget>
     <EnableDefaultCompileItems>false</EnableDefaultCompileItems>
     <CodeAnalysisRuleSet>..\OpenRA.ruleset</CodeAnalysisRuleSet>
+    <IsPublishable Condition="'$(CopyD2kDll)' == 'False'">false</IsPublishable>
   </PropertyGroup>
   <ItemGroup>
     <!-- Work around an issue where Rider does not detect files in the project root using the default glob -->
@@ -37,4 +38,4 @@
       <Analyzer Remove="@(Analyzer)" />
     </ItemGroup>
   </Target>
-</Project>
+</Project>

OpenRA.Platforms.Default/OpenRA.Platforms.Default.csproj

@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-      <TargetFramework>net472</TargetFramework>
+      <TargetFramework>netstandard2.1</TargetFramework>
       <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
       <Optimize>true</Optimize>
       <LangVersion>7.3</LangVersion>
@@ -11,6 +11,7 @@
       <PlatformTarget>AnyCPU</PlatformTarget>
       <EnableDefaultCompileItems>false</EnableDefaultCompileItems>
       <CodeAnalysisRuleSet>..\OpenRA.ruleset</CodeAnalysisRuleSet>
+      <CopyLocalLockFileAssemblies>true</CopyLocalLockFileAssemblies>
     </PropertyGroup>
   <PropertyGroup>
     <TargetPlatform Condition="$([MSBuild]::IsOsPlatform('Windows'))">win-x64</TargetPlatform>

OpenRA.Platforms.Default/ThreadedGraphicsContext.cs

@@ -59,7 +59,6 @@ namespace OpenRA.Platforms.Default
 				Name = "ThreadedGraphicsContext RenderThread",
 				IsBackground = true
 			};
-			renderThread.SetApartmentState(ApartmentState.STA);
 			lock (syncObject)
 			{
 				// Start and wait for the rendering thread to have initialized before returning.

OpenRA.Server/OpenRA.Server.csproj

@@ -1,7 +1,8 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net472</TargetFramework>
+    <TargetFramework Condition="'$(Mono)' == ''">net5.0</TargetFramework>
+    <TargetFramework Condition="'$(Mono)' != ''">netstandard2.1</TargetFramework>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <Optimize>true</Optimize>
     <UseVSHostingProcess>false</UseVSHostingProcess>
@@ -39,4 +40,8 @@
       <Analyzer Remove="@(Analyzer)" />
     </ItemGroup>
   </Target>
+  <ItemGroup>
+    <TrimmerRootAssembly Include="netstandard" />
+    <TrimmerRootAssembly Include="System.IO.Pipes" />
+  </ItemGroup>
 </Project>

OpenRA.Test/OpenRA.Test.csproj

@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFramework>net472</TargetFramework>
+    <TargetFramework>net5.0</TargetFramework>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <LangVersion>7.3</LangVersion>
     <DebugSymbols>true</DebugSymbols>
@@ -10,6 +10,7 @@
     <PlatformTarget>AnyCPU</PlatformTarget>
     <EnableDefaultCompileItems>false</EnableDefaultCompileItems>
     <CodeAnalysisRuleSet>..\OpenRA.ruleset</CodeAnalysisRuleSet>
+    <IsPublishable>false</IsPublishable>
   </PropertyGroup>
   <ItemGroup>
     <!-- Work around an issue where Rider does not detect files in the project root using the default glob -->
@@ -22,14 +23,12 @@
   <ItemGroup>
     <ProjectReference Include="..\OpenRA.Game\OpenRA.Game.csproj" />
     <ProjectReference Include="..\OpenRA.Mods.Common\OpenRA.Mods.Common.csproj">
-      <Private>False</Private>
+      <Private>True</Private>
     </ProjectReference>
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.6.1" />
     <PackageReference Include="NUnit" Version="3.12.0" />
     <PackageReference Include="NUnit.Console" Version="3.11.1" />
-    <PackageReference Include="NUnit3TestAdapter" Version="3.16.1">
-      <PrivateAssets>all</PrivateAssets>
-      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
-    </PackageReference>
+    <PackageReference Include="NUnit3TestAdapter" Version="3.17.0-beta.1" />
     <PackageReference Include="StyleCop.Analyzers" Version="1.1.118" />
     <PackageReference Include="Microsoft.NETFramework.ReferenceAssemblies" Version="1.0.0" PrivateAssets="All" />
     <AdditionalFiles Include="../stylecop.json" />
@@ -40,4 +39,4 @@
       <Analyzer Remove="@(Analyzer)" />
     </ItemGroup>
   </Target>
-</Project>
+</Project>

OpenRA.Utility/OpenRA.Utility.csproj

@@ -1,7 +1,8 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net472</TargetFramework>
+    <TargetFramework Condition="'$(Mono)' == ''">net5.0</TargetFramework>
+    <TargetFramework Condition="'$(Mono)' != ''">netstandard2.1</TargetFramework>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <Optimize>true</Optimize>
     <UseVSHostingProcess>false</UseVSHostingProcess>
@@ -39,4 +40,8 @@
       <Analyzer Remove="@(Analyzer)" />
     </ItemGroup>
   </Target>
+  <ItemGroup>
+    <TrimmerRootAssembly Include="netstandard" />
+    <TrimmerRootAssembly Include="System.IO.Pipes" />
+  </ItemGroup>
 </Project>

OpenRA.WindowsLauncher/OpenRA.WindowsLauncher.csproj

@@ -1,7 +1,9 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <OutputType>winexe</OutputType>
-    <TargetFramework>net472</TargetFramework>
+    <TargetFramework>net5.0</TargetFramework>
+    <AppendTargetFrameworkToOutputPath>false</AppendTargetFrameworkToOutputPath>
+    <ApplicationIcon>$(LauncherIcon)</ApplicationIcon>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <Optimize>true</Optimize>
     <UseVSHostingProcess>false</UseVSHostingProcess>
@@ -10,14 +12,12 @@
     <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
     <AutoGenerateBindingRedirects>false</AutoGenerateBindingRedirects>
     <OutputPath>../bin</OutputPath>
-    <AppendTargetFrameworkToOutputPath>false</AppendTargetFrameworkToOutputPath>
     <PlatformTarget>AnyCPU</PlatformTarget>
     <ExternalConsole>false</ExternalConsole>
     <EnableDefaultCompileItems>false</EnableDefaultCompileItems>
     <CodeAnalysisRuleSet>..\OpenRA.ruleset</CodeAnalysisRuleSet>
     <Configurations>Release;Debug</Configurations>
     <AssemblyName>$(LauncherName)</AssemblyName>
-    <ApplicationIcon>$(LauncherIcon)</ApplicationIcon>
   </PropertyGroup>
   <ItemGroup>
     <!-- Work around an issue where Rider does not detect files in the project root using the default glob -->
@@ -58,4 +58,8 @@
       <Analyzer Remove="@(Analyzer)" />
     </ItemGroup>
   </Target>
+  <ItemGroup>
+    <TrimmerRootAssembly Include="netstandard" />
+    <TrimmerRootAssembly Include="System.IO.Pipes" />
+  </ItemGroup>
 </Project>

OpenRA.sln

@@ -58,9 +58,7 @@ Global
 		{FE6C8CC0-2F07-442A-B29F-17617B3B7FC6}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{FE6C8CC0-2F07-442A-B29F-17617B3B7FC6}.Release|Any CPU.Build.0 = Release|Any CPU
 		{6CB8E1B7-6B36-4D93-8633-7C573E194AC4}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{6CB8E1B7-6B36-4D93-8633-7C573E194AC4}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{6CB8E1B7-6B36-4D93-8633-7C573E194AC4}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{6CB8E1B7-6B36-4D93-8633-7C573E194AC4}.Release|Any CPU.Build.0 = Release|Any CPU
 		{54DAE0E0-3125-49D3-992E-A0E931EB5FC8}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{54DAE0E0-3125-49D3-992E-A0E931EB5FC8}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{54DAE0E0-3125-49D3-992E-A0E931EB5FC8}.Release|Any CPU.ActiveCfg = Release|Any CPU

README.md

@@ -4,7 +4,7 @@ A Libre/Free Real Time Strategy game engine supporting early Westwood classics.
 
 * Website: [http://www.openra.net](http://www.openra.net)
 * IRC: \#openra on irc.freenode.net
-* Repository: [https://github.com/OpenRA/OpenRA](https://github.com/OpenRA/OpenRA) [![Travis CI build status](https://travis-ci.org/OpenRA/OpenRA.svg?branch=bleed)](https://travis-ci.org/OpenRA/OpenRA) [![AppVeyor build status](https://ci.appveyor.com/api/projects/status/axc9k6jd25ej2o4w?svg=true)](https://ci.appveyor.com/project/OpenRA/openra)
+* Repository: [https://github.com/OpenRA/OpenRA](https://github.com/OpenRA/OpenRA) ![Continuous Integration](https://github.com/OpenRA/OpenRA/workflows/Continuous%20Integration/badge.svg)
 
 Please read the [FAQ](http://wiki.openra.net/FAQ) in our [Wiki](http://wiki.openra.net) and report problems at [http://bugs.openra.net](http://bugs.openra.net).
 

appveyor.yml

@@ -1,28 +0,0 @@
-version: 1.0.{build}
-image: Visual Studio 2017
-
-install:
-
-build_script:
-  - make all
-
-test_script:
-  - nunit3-console bin/OpenRA.Test.dll --result=myresults.xml;format=AppVeyor
-
-after_test:
-  - appveyor DownloadFile "https://github.com/OpenRA/GeoIP-Database/releases/download/monthly/IP2LOCATION-LITE-DB1.IPV6.BIN.ZIP" -FileName IP2LOCATION-LITE-DB1.IPV6.BIN.ZIP
-  - pip install Pillow
-  - python -c "from PIL import Image; i = Image.open('packaging/artwork/ra_256x256.png'); i.save('ra.ico')"
-  - python -c "from PIL import Image; i = Image.open('packaging/artwork/cnc_256x256.png'); i.save('cnc.ico')"
-  - python -c "from PIL import Image; i = Image.open('packaging/artwork/d2k_256x256.png'); i.save('d2k.ico')"
-  - msbuild -t:Build "OpenRA.WindowsLauncher/OpenRA.WindowsLauncher.csproj" -restore -p:Configuration=Release -p:TargetPlatform="win-x64" -p:LauncherName="RedAlert" -p:LauncherIcon="../ra.ico" -p:ModID="ra" -p:DisplayName="Red Alert" -p:FaqUrl="http://wiki.openra.net/FAQ"
-  - msbuild -t:Build "OpenRA.WindowsLauncher/OpenRA.WindowsLauncher.csproj" -restore -p:Configuration=Release -p:TargetPlatform="win-x64" -p:LauncherName="TiberianDawn" -p:LauncherIcon="../cnc.ico" -p:ModID="cnc" -p:DisplayName="Tiberian Dawn" -p:FaqUrl="http://wiki.openra.net/FAQ"
-  - msbuild -t:Build "OpenRA.WindowsLauncher/OpenRA.WindowsLauncher.csproj" -restore -p:Configuration=Release -p:TargetPlatform="win-x64" -p:LauncherName="Dune2000" -p:LauncherIcon="../d2k.ico" -p:ModID="d2k" -p:DisplayName="Dune 2000" -p:FaqUrl="http://wiki.openra.net/FAQ"
-  - move  /Y %APPVEYOR_BUILD_FOLDER%\bin\* %APPVEYOR_BUILD_FOLDER%
-  - if defined APPVEYOR_REPO_TAG_NAME set VERSION=%APPVEYOR_REPO_TAG_NAME%
-  - if not defined APPVEYOR_REPO_TAG_NAME set VERSION=%APPVEYOR_REPO_COMMIT:~0,7%
-  - '"C:\Program Files (x86)\NSIS\makensis.exe" /DSRCDIR="%APPVEYOR_BUILD_FOLDER%" /DTAG="git-%VERSION%" /DSUFFIX=" (dev)" /V3 /DOUTFILE="OpenRA-$(VERSION).exe" packaging/windows/OpenRA.nsi'
-
-artifacts:
-  - path: OpenRA-$(VERSION).exe
-    name: Installer

launch-dedicated.sh

@@ -25,7 +25,7 @@ ShareAnonymizedIPs="${ShareAnonymizedIPs:-"True"}"
 SupportDir="${SupportDir:-""}"
 
 while true; do
-     mono --debug bin/OpenRA.Server.exe Engine.EngineDir=".." Game.Mod="$Mod" \
+     mono --debug bin/OpenRA.Server.dll Engine.EngineDir=".." Game.Mod="$Mod" \
      Server.Name="$Name" \
      Server.ListenPort="$ListenPort" \
      Server.AdvertiseOnline="$AdvertiseOnline" \

launch-game.sh

@@ -25,7 +25,7 @@ then
 fi
 
 # Launch the engine with the appropriate arguments
-mono bin/OpenRA.exe Engine.EngineDir=".." Engine.LaunchPath="$MODLAUNCHER" $MODARG "$@"
+mono --debug bin/OpenRA.dll Engine.EngineDir=".." Engine.LaunchPath="$MODLAUNCHER" $MODARG "$@"
 
 # Show a crash dialog if something went wrong
 if [ $? != 0 ] && [ $? != 1 ]; then

make.ps1

@@ -10,7 +10,7 @@ function All-Command
 		return
 	}
 
-	dotnet build /p:Configuration=Release /nologo
+	dotnet build -c Release --nologo -p:TargetPlatform=win-x64
 	if ($lastexitcode -ne 0)
 	{
 		Write-Host "Build failed. If just the development tools failed to build, try installing Visual Studio. You may also still be able to run the game." -ForegroundColor Red
@@ -111,7 +111,7 @@ function Test-Command
 function Check-Command
 {
 	Write-Host "Compiling in debug configuration..." -ForegroundColor Cyan
-	dotnet build /p:Configuration=Debug /nologo
+	dotnet build -c Debug --nologo -p:TargetPlatform=win-x64
 	if ($lastexitcode -ne 0)
 	{
 		Write-Host "Build failed." -ForegroundColor Red

mods/cnc/chrome.yaml

@@ -366,23 +366,18 @@ scrollpanel-decorations:
 	Inherits: ^Chrome
 	Regions:
 		down: 836, 17, 16, 16
-		down-pressed: 836, 17, 16, 16
 		down-disabled: 853, 17, 16, 16
 		up: 870, 17, 16, 16
-		up-pressed: 870, 17, 16, 16
 		up-disabled: 887, 17, 16, 16
 		right: 904, 17, 16, 16
-		right-pressed: 904, 17, 16, 16
 		right-disabled: 921, 17, 16, 16
 		left: 938, 17, 16, 16
-		left-pressed: 938, 17, 16, 16
 		left-disabled: 955, 17, 16, 16
 
 dropdown-decorations:
 	Inherits: ^Chrome
 	Regions:
 		marker: 836, 17, 16, 16
-		marker-pressed: 836, 17, 16, 16
 		marker-disabled: 853, 17, 16, 16
 
 dropdown-separators: