Fix invalid actors not spawning in-game.

* Minimum macOS version is raised to 10.11.
* App bundles ship 3 versions of the runtime and engine binaries,
  and a fat launcher that selects the appropriate runtime/apphost.
* Mono is used for macOS 10.11 - 10.14, or if OPENRA_PREFER_MONO
  environment variable has been set.

.github/workflows/ci.yml

@@ -3,7 +3,7 @@ name: Continuous Integration
 on:
   push:
   pull_request:
-    branches: [ bleed ]
+    branches: [ bleed, 'prep-*' ]
 
 jobs:
   linux:

.github/workflows/documentation.yml

@@ -115,7 +115,7 @@ jobs:
           cd docs
           git config --local user.email "actions@github.com"
           git config --local user.name "GitHub Actions"
-          git add *.md
+          git add api/*.md
           git commit -m "Update auto-generated documentation for ${GIT_TAG}"
 
       - name: Push docs.openra.net (Release)

.github/workflows/packaging.yml

@@ -62,7 +62,7 @@ jobs:
           file: build/linux/*
 
   macos:
-    name: macOS Disk Images
+    name: macOS Disk Image
     runs-on: macos-11
     steps:
       - name: Clone Repository
@@ -76,7 +76,7 @@ jobs:
       - name: Prepare Environment
         run: echo "GIT_TAG=${GITHUB_REF#refs/tags/}" >> ${GITHUB_ENV}
 
-      - name: Package Disk Images
+      - name: Package Disk Image
         env:
           MACOS_DEVELOPER_IDENTITY: ${{ secrets.MACOS_DEVELOPER_IDENTITY }}
           MACOS_DEVELOPER_CERTIFICATE_BASE64: ${{ secrets.MACOS_DEVELOPER_CERTIFICATE_BASE64 }}
@@ -87,7 +87,7 @@ jobs:
           mkdir -p build/macos
           ./packaging/macos/buildpackage.sh "${GIT_TAG}" "${PWD}/build/macos"
 
-      - name: Upload Packages
+      - name: Upload Package
         uses: svenstaro/upload-release-action@v2
         with:
           repo_token: ${{ secrets.GITHUB_TOKEN }}

Makefile

@@ -58,6 +58,7 @@ RM_RF = $(RM) -rf
 
 RUNTIME ?= net6
 CONFIGURATION ?= Release
+DOTNET_RID = $(shell ${DOTNET} --info | grep RID: | cut -w -f3)
 
 # Only for use in target version:
 VERSION := $(shell git name-rev --name-only --tags --no-undefined HEAD 2>/dev/null || (c=$$(git rev-parse --short HEAD 2>/dev/null) && echo git-$$c))
@@ -67,15 +68,23 @@ ifndef TARGETPLATFORM
 UNAME_S := $(shell uname -s)
 UNAME_M := $(shell uname -m)
 ifeq ($(UNAME_S),Darwin)
+ifeq ($(RUNTIME)-$(DOTNET_RID),net6-osx-arm64)
+TARGETPLATFORM = osx-arm64
+else
 TARGETPLATFORM = osx-x64
+endif
 else
 ifeq ($(UNAME_M),x86_64)
 TARGETPLATFORM = linux-x64
 else
+ifeq ($(UNAME_M),aarch64)
+TARGETPLATFORM = linux-arm64
+else
 TARGETPLATFORM = unix-generic
 endif
 endif
 endif
+endif
 
 ##################### DEVELOPMENT BUILDS AND TESTS #####################
 #

OpenRA.Game/Game.cs

@@ -318,7 +318,7 @@ namespace OpenRA
 			if (!string.IsNullOrEmpty(supportDirArg))
 				Platform.OverrideSupportDir(supportDirArg);
 
-			Console.WriteLine($"Platform is {Platform.CurrentPlatform}");
+			Console.WriteLine($"Platform is {Platform.CurrentPlatform} ({Platform.CurrentArchitecture})");
 
 			// Load the engine version as early as possible so it can be written to exception logs
 			try

OpenRA.Game/Map/Map.cs

@@ -243,6 +243,8 @@ namespace OpenRA
 		public CellRegion AllCells { get; private set; }
 		public List<CPos> AllEdgeCells { get; private set; }
 
+		public event Action<CPos> CellProjectionChanged;
+
 		// Internal data
 		readonly ModData modData;
 		CellLayer<short> cachedTerrainIndexes;
@@ -336,11 +338,12 @@ namespace OpenRA
 			Height = new CellLayer<byte>(Grid.Type, size);
 			Ramp = new CellLayer<byte>(Grid.Type, size);
 			Tiles.Clear(terrainInfo.DefaultTerrainTile);
+
 			if (Grid.MaximumTerrainHeight > 0)
 			{
-				Height.CellEntryChanged += UpdateProjection;
-				Tiles.CellEntryChanged += UpdateProjection;
 				Tiles.CellEntryChanged += UpdateRamp;
+				Tiles.CellEntryChanged += UpdateProjection;
+				Height.CellEntryChanged += UpdateProjection;
 			}
 
 			PostInit();
@@ -530,6 +533,7 @@ namespace OpenRA
 				var inverse = inverseCellProjection[uv];
 				inverse.Clear();
 				inverse.Add(uv);
+				CellProjectionChanged?.Invoke(cell);
 				return;
 			}
 
@@ -567,6 +571,8 @@ namespace OpenRA
 					projectedHeight[temp] = height;
 				}
 			}
+
+			CellProjectionChanged?.Invoke(cell);
 		}
 
 		byte ProjectedCellHeightInner(PPos puv)

OpenRA.Game/MiniYaml.cs

@@ -83,7 +83,7 @@ namespace OpenRA
 
 		public MiniYamlNode Clone()
 		{
-			return new MiniYamlNode(Key, Value.Clone());
+			return new MiniYamlNode(Key, Value.Clone(), Comment, Location);
 		}
 	}
 

OpenRA.Game/Network/Connection.cs

@@ -57,12 +57,12 @@ namespace OpenRA.Network
 
 		void IConnection.Send(int frame, IEnumerable<Order> o)
 		{
-			orders.Enqueue((frame, new OrderPacket(o.ToArray())));
+			orders.Enqueue((frame, new OrderPacket(o)));
 		}
 
 		void IConnection.SendImmediate(IEnumerable<Order> o)
 		{
-			immediateOrders.Enqueue(new OrderPacket(o.ToArray()));
+			immediateOrders.Enqueue(new OrderPacket(o));
 		}
 
 		void IConnection.SendSync(int frame, int syncHash, ulong defeatState)
@@ -230,14 +230,14 @@ namespace OpenRA.Network
 
 		void IConnection.Send(int frame, IEnumerable<Order> orders)
 		{
-			var o = new OrderPacket(orders.ToArray());
+			var o = new OrderPacket(orders);
 			sentOrders.Enqueue((frame, o));
 			Send(o.Serialize(frame));
 		}
 
 		void IConnection.SendImmediate(IEnumerable<Order> orders)
 		{
-			var o = new OrderPacket(orders.ToArray());
+			var o = new OrderPacket(orders);
 			sentImmediateOrders.Enqueue(o);
 			Send(o.Serialize(0));
 		}

OpenRA.Game/Network/OrderIO.cs

@@ -17,32 +17,32 @@ namespace OpenRA.Network
 {
 	public class OrderPacket
 	{
-		readonly Order[] orders;
 		readonly MemoryStream data;
-		public OrderPacket(Order[] orders)
+		public OrderPacket(IEnumerable<Order> orders)
 		{
-			this.orders = orders;
-			data = null;
+			// Orders may refer to actors that no longer exist by the time
+			// that the order is resolved. In order to ensure consistent
+			// behaviour between local and remote clients, it is simplest
+			// to always serialize / deserialize orders, instead of storing
+			// the Order objects directly on the local client.
+			data = new MemoryStream();
+			foreach (var o in orders)
+				data.WriteArray(o.Serialize());
 		}
 
 		public OrderPacket(MemoryStream data)
 		{
-			orders = null;
 			this.data = data;
 		}
 
 		public IEnumerable<Order> GetOrders(World world)
 		{
-			return orders ?? ParseData(world);
-		}
-
-		IEnumerable<Order> ParseData(World world)
-		{
-			if (data == null)
+			if (data.Length == 0)
 				yield break;
 
 			// Order deserialization depends on the current world state,
 			// so must be deferred until we are ready to consume them.
+			data.Position = 0;
 			var reader = new BinaryReader(data);
 			while (data.Position < data.Length)
 			{
@@ -54,28 +54,25 @@ namespace OpenRA.Network
 
 		public byte[] Serialize(int frame)
 		{
-			if (data != null)
-				return data.ToArray();
-
-			var ms = new MemoryStream();
+			var ms = new MemoryStream((int)data.Length + 4);
 			ms.WriteArray(BitConverter.GetBytes(frame));
-			foreach (var o in orders)
-				ms.WriteArray(o.Serialize());
-			return ms.ToArray();
+
+			data.Position = 0;
+			data.CopyTo(ms);
+
+			return ms.GetBuffer();
 		}
 
 		public static OrderPacket Combine(IEnumerable<OrderPacket> packets)
 		{
-			var orders = new List<Order>();
+			var ms = new MemoryStream();
 			foreach (var packet in packets)
 			{
-				if (packet.orders == null)
-					throw new InvalidOperationException("OrderPacket.Combine can only be used with locally generated OrderPackets.");
-
-				orders.AddRange(packet.orders);
+				packet.data.Position = 0;
+				packet.data.CopyTo(ms);
 			}
 
-			return new OrderPacket(orders.ToArray());
+			return new OrderPacket(ms);
 		}
 	}
 

OpenRA.Game/OpenRA.Game.csproj

@@ -8,7 +8,7 @@
   </ItemGroup>
   <ItemGroup>
     <PackageReference Include="Linguini.Bundle" Version="0.3.1" />
-    <PackageReference Include="OpenRA-Eluant" Version="1.0.18" />
+    <PackageReference Include="OpenRA-Eluant" Version="1.0.19" />
     <PackageReference Include="Mono.NAT" Version="3.0.3" />
     <PackageReference Include="SharpZipLib" Version="1.3.3" />
     <PackageReference Include="System.Net.Http" Version="4.3.4" />

OpenRA.Game/Platform.cs

@@ -13,6 +13,7 @@ using System;
 using System.Diagnostics;
 using System.IO;
 using System.Reflection;
+using System.Runtime.InteropServices;
 
 namespace OpenRA
 {
@@ -23,6 +24,7 @@ namespace OpenRA
 	public static class Platform
 	{
 		public static PlatformType CurrentPlatform => LazyCurrentPlatform.Value;
+		public static Architecture CurrentArchitecture => RuntimeInformation.ProcessArchitecture;
 		public static readonly Guid SessionGUID = Guid.NewGuid();
 
 		static readonly Lazy<PlatformType> LazyCurrentPlatform = Exts.Lazy(GetCurrentPlatform);

OpenRA.Game/Support/ExceptionHandler.cs

@@ -32,7 +32,7 @@ namespace OpenRA
 			if (Game.ModData != null)
 			{
 				var mod = Game.ModData.Manifest.Metadata;
-				Log.Write("exception", $"{mod.Title} mod version ${mod.Version}");
+				Log.Write("exception", $"{mod.Title} mod version {mod.Version}");
 			}
 
 			if (Game.OrderManager != null && Game.OrderManager.World != null && Game.OrderManager.World.Map != null)
@@ -42,7 +42,7 @@ namespace OpenRA
 			}
 
 			Log.Write("exception", $"Date: {DateTime.UtcNow:u}");
-			Log.Write("exception", $"Operating System: {Platform.CurrentPlatform} ({Environment.OSVersion})");
+			Log.Write("exception", $"Operating System: {Platform.CurrentPlatform} ({Platform.CurrentArchitecture}, {Environment.OSVersion})");
 			Log.Write("exception", $"Runtime Version: {Platform.RuntimeVersion}", Platform.RuntimeVersion);
 			Log.Write("exception", $"Installed Language: {CultureInfo.InstalledUICulture.TwoLetterISOLanguageName} (Installed) {CultureInfo.CurrentCulture.TwoLetterISOLanguageName} (Current) {CultureInfo.CurrentUICulture.TwoLetterISOLanguageName} (Current UI)");
 
@@ -56,9 +56,9 @@ namespace OpenRA
 			return BuildExceptionReport(ex, new StringBuilder(), 0);
 		}
 
-		static StringBuilder AppendIndentedFormatLine(this StringBuilder sb, int indent, string format, params object[] args)
+		static StringBuilder AppendIndentedLine(this StringBuilder sb, int indent, string message)
 		{
-			return sb.Append(new string(' ', indent * 2)).AppendFormat(format, args).AppendLine();
+			return sb.Append(new string(' ', indent * 2)).Append(message).AppendLine();
 		}
 
 		static StringBuilder BuildExceptionReport(Exception ex, StringBuilder sb, int indent)
@@ -66,11 +66,11 @@ namespace OpenRA
 			if (ex == null)
 				return sb;
 
-			sb.AppendIndentedFormatLine(indent, $"Exception of type `{ex.GetType().FullName}`: {ex.Message}");
+			sb.AppendIndentedLine(indent, $"Exception of type `{ex.GetType().FullName}`: {ex.Message}");
 
 			if (ex is TypeLoadException tle)
 			{
-				sb.AppendIndentedFormatLine(indent, $"TypeName=`{tle.TypeName}`");
+				sb.AppendIndentedLine(indent, $"TypeName=`{tle.TypeName}`");
 			}
 			else if (ex is OutOfMemoryException)
 			{
@@ -78,14 +78,14 @@ namespace OpenRA
 				GC.Collect();
 				GC.WaitForPendingFinalizers();
 				GC.Collect();
-				sb.AppendIndentedFormatLine(indent, $"GC Memory (post-collect)={GC.GetTotalMemory(false):N0}");
-				sb.AppendIndentedFormatLine(indent, $"GC Memory (pre-collect)={gcMemoryBeforeCollect:N0}");
+				sb.AppendIndentedLine(indent, $"GC Memory (post-collect)={GC.GetTotalMemory(false):N0}");
+				sb.AppendIndentedLine(indent, $"GC Memory (pre-collect)={gcMemoryBeforeCollect:N0}");
 
 				using (var p = Process.GetCurrentProcess())
 				{
-					sb.AppendIndentedFormatLine(indent, $"Working Set={p.WorkingSet64:N0}");
-					sb.AppendIndentedFormatLine(indent, $"Private Memory={p.PrivateMemorySize64:N0}");
-					sb.AppendIndentedFormatLine(indent, $"Virtual Memory={p.VirtualMemorySize64:N0}");
+					sb.AppendIndentedLine(indent, $"Working Set={p.WorkingSet64:N0}");
+					sb.AppendIndentedLine(indent, $"Private Memory={p.PrivateMemorySize64:N0}");
+					sb.AppendIndentedLine(indent, $"Virtual Memory={p.VirtualMemorySize64:N0}");
 				}
 			}
 			else
@@ -95,11 +95,11 @@ namespace OpenRA
 
 			if (ex.InnerException != null)
 			{
-				sb.AppendIndentedFormatLine(indent, "Inner");
+				sb.AppendIndentedLine(indent, "Inner");
 				BuildExceptionReport(ex.InnerException, sb, indent + 1);
 			}
 
-			sb.AppendIndentedFormatLine(indent, ex.StackTrace);
+			sb.AppendIndentedLine(indent, ex.StackTrace);
 
 			return sb;
 		}

OpenRA.Mods.Common/Activities/PickupUnit.cs

@@ -65,15 +65,12 @@ namespace OpenRA.Mods.Common.Activities
 
 		public override bool Tick(Actor self)
 		{
-			if (cargo != carryall.Carryable)
-				return true;
-
-			if (IsCanceling)
+			if (IsCanceling || cargo != carryall.Carryable)
 			{
 				if (carryall.State == Carryall.CarryallState.Reserved)
 					carryall.UnreserveCarryable(self);
 
-				// Make sure we run the TakeOff activity if we are / have landed
+				// Make sure we run the TakeOff activity if we are/have landed
 				if (self.Trait<Aircraft>().HasInfluence())
 				{
 					ChildHasPriority = true;
@@ -88,7 +85,8 @@ namespace OpenRA.Mods.Common.Activities
 			if (cargo.IsDead || carryable.IsTraitDisabled || !cargo.AppearsFriendlyTo(self))
 			{
 				carryall.UnreserveCarryable(self);
-				return true;
+				Cancel(self, true);
+				return false;
 			}
 
 			// Wait until we are near the target before we try to lock it
@@ -100,7 +98,10 @@ namespace OpenRA.Mods.Common.Activities
 			{
 				var lockResponse = carryable.LockForPickup(cargo, self);
 				if (lockResponse == LockResponse.Failed)
-					Cancel(self);
+				{
+					Cancel(self, true);
+					return false;
+				}
 				else if (lockResponse == LockResponse.Success)
 				{
 					// Pickup position and facing are now known - swap the fly/wait activity with Land

OpenRA.Mods.Common/Graphics/ContrailRenderable.cs

@@ -82,7 +82,7 @@ namespace OpenRA.Mods.Common.Graphics
 			for (var i = 1; i < renderLength; i++)
 			{
 				var j = next - skip - 1 - i;
-				var nextColor = Exts.ColorLerp(i * 1f / (renderLength - 1), startcolor, endcolor);
+				var nextColor = Exts.ColorLerp(i / (renderLength - 1f), startcolor, endcolor);
 
 				var nextX = 0L;
 				var nextY = 0L;

OpenRA.Mods.Common/Lint/CheckTranslationReference.cs

@@ -32,6 +32,15 @@ namespace OpenRA.Mods.Common.Lint
 			var language = "en";
 			var translation = new Translation(language, modData.Manifest.Translations, modData.DefaultFileSystem);
 
+			var gameSpeeds = modData.Manifest.Get<GameSpeeds>();
+			foreach (var speed in gameSpeeds.Speeds.Values)
+			{
+				if (!translation.HasMessage(speed.Name))
+					emitError($"{speed.Name} not present in {language} translation.");
+
+				referencedKeys.Add(speed.Name);
+			}
+
 			foreach (var modType in modData.ObjectCreator.GetTypes())
 			{
 				foreach (var fieldInfo in modType.GetFields(Binding).Where(m => m.HasAttribute<TranslationReferenceAttribute>()))

OpenRA.Mods.Common/Pathfinder/HierarchicalPathFinder.cs

@@ -281,6 +281,10 @@ namespace OpenRA.Mods.Common.Pathfinder
 			// When we build the cost table, it depends on the movement costs of the cells at that time.
 			// When this changes, we must update the cost table.
 			locomotor.CellCostChanged += RequireCostRefreshInCell;
+
+			// If the map projection changes, the result of Map.Contains(CPos) may change.
+			// We need to rebuild grids to account for this possibility.
+			this.world.Map.CellProjectionChanged += RequireProjectionRefreshInCell;
 		}
 
 		public (
@@ -619,6 +623,14 @@ namespace OpenRA.Mods.Common.Pathfinder
 			}
 		}
 
+		/// <summary>
+		/// When map projection changes for a cell, marks the grid it belongs to as out of date.
+		/// </summary>
+		void RequireProjectionRefreshInCell(CPos cell)
+		{
+			dirtyGridIndexes.Add(GridIndex(cell));
+		}
+
 		/// <summary>
 		/// <see cref="BlockedByActor.Immovable"/> defines immovability based on the mobile trait. The blocking rules
 		/// in <see cref="Locomotor.CanMoveFreelyInto(Actor, CPos, SubCell, BlockedByActor, Actor)"/> allow units to
@@ -780,6 +792,7 @@ namespace OpenRA.Mods.Common.Pathfinder
 				fullGraph.GetConnections, locomotor, target, target, estimatedSearchSize, pathFinderOverlay?.RecordAbstractEdges(self)))
 			{
 				var sourcesWithPathableNodes = new HashSet<CPos>(sources.Count);
+				List<CPos> unpathableNodes = null;
 				foreach (var (source, adjacentSource) in sourcesWithReachableNodes)
 				{
 					// Check if we have already found a route to this node before we attempt to expand the search.
@@ -788,12 +801,24 @@ namespace OpenRA.Mods.Common.Pathfinder
 					{
 						if (sourceStatus.CostSoFar != PathGraph.PathCostForInvalidPath)
 							sourcesWithPathableNodes.Add(source);
+						else
+						{
+							if (unpathableNodes == null)
+								unpathableNodes = new List<CPos>();
+							unpathableNodes.Add(adjacentSource);
+						}
 					}
 					else
 					{
 						reverseAbstractSearch.TargetPredicate = cell => cell == adjacentSource;
 						if (reverseAbstractSearch.ExpandToTarget())
 							sourcesWithPathableNodes.Add(source);
+						else
+						{
+							if (unpathableNodes == null)
+								unpathableNodes = new List<CPos>();
+							unpathableNodes.Add(adjacentSource);
+						}
 					}
 				}
 
@@ -802,7 +827,7 @@ namespace OpenRA.Mods.Common.Pathfinder
 
 				using (var fromSrc = GetLocalPathSearch(
 					self, sourcesWithPathableNodes, target, customCost, ignoreActor, check, laneBias, null, heuristicWeightPercentage,
-					heuristic: Heuristic(reverseAbstractSearch, estimatedSearchSize, sourcesWithPathableNodes),
+					heuristic: Heuristic(reverseAbstractSearch, estimatedSearchSize, sourcesWithPathableNodes, unpathableNodes),
 					recorder: pathFinderOverlay?.RecordLocalEdges(self)))
 					return fromSrc.FindPath();
 			}
@@ -852,12 +877,12 @@ namespace OpenRA.Mods.Common.Pathfinder
 
 			RebuildDirtyGrids();
 
-			// If the target cell in unreachable, there is no path.
+			// If the target cell is unreachable, there is no path.
 			var targetAbstractCell = AbstractCellForLocalCell(target);
 			if (targetAbstractCell == null)
 				return PathFinder.NoPath;
 
-			// If the source cell in unreachable, there may still be a path.
+			// If the source cell is unreachable, there may still be a path.
 			// As long as one of the cells adjacent to the source is reachable, the path can be made.
 			// Call the other overload which can handle this scenario.
 			var sourceAbstractCell = AbstractCellForLocalCell(source);
@@ -886,11 +911,11 @@ namespace OpenRA.Mods.Common.Pathfinder
 
 					using (var fromSrc = GetLocalPathSearch(
 						self, new[] { source }, target, customCost, ignoreActor, check, laneBias, null, heuristicWeightPercentage,
-						heuristic: Heuristic(reverseAbstractSearch, estimatedSearchSize, null),
+						heuristic: Heuristic(reverseAbstractSearch, estimatedSearchSize, null, null),
 						recorder: pathFinderOverlay?.RecordLocalEdges(self)))
 					using (var fromDest = GetLocalPathSearch(
 						self, new[] { target }, source, customCost, ignoreActor, check, laneBias, null, heuristicWeightPercentage,
-						heuristic: Heuristic(forwardAbstractSearch, estimatedSearchSize, null),
+						heuristic: Heuristic(forwardAbstractSearch, estimatedSearchSize, null, null),
 						recorder: pathFinderOverlay?.RecordLocalEdges(self),
 						inReverse: true))
 						return PathSearch.FindBidiPath(fromDest, fromSrc);
@@ -1096,13 +1121,20 @@ namespace OpenRA.Mods.Common.Pathfinder
 		/// (the heuristic) for a local path search. The abstract search must run in the opposite direction to the
 		/// local search. So when searching from source to target, the abstract search must be from target to source.
 		/// </summary>
-		Func<CPos, int> Heuristic(PathSearch abstractSearch, int estimatedSearchSize, HashSet<CPos> sources)
+		Func<CPos, int> Heuristic(PathSearch abstractSearch, int estimatedSearchSize,
+			HashSet<CPos> sources, List<CPos> unpathableNodes)
 		{
 			var nodeForCostLookup = new Dictionary<CPos, CPos>(estimatedSearchSize);
 			var graph = (SparsePathGraph)abstractSearch.Graph;
 			return cell =>
 			{
-				// All cells searched by the heuristic are guaranteed to be reachable.
+				// When dealing with an unreachable source cell, the path search will check adjacent locations.
+				// These cells may be reachable, but may represent jumping into an area cut off from the target.
+				// Searching on the abstract graph would fail to provide a route in this scenario, so bail early.
+				if (unpathableNodes != null && unpathableNodes.Contains(cell))
+					return PathGraph.PathCostForInvalidPath;
+
+				// All other cells searched by the heuristic are guaranteed to be reachable.
 				// So we don't need to handle an abstract cell lookup failing, or the search failing to expand.
 				// Cells added as initial starting points for the search are filtered out if they aren't reachable.
 				// The search only explores accessible cells from then on.
@@ -1112,13 +1144,14 @@ namespace OpenRA.Mods.Common.Pathfinder
 				var maybeAbstractCell = AbstractCellForLocalCellNoAccessibleCheck(cell);
 				if (maybeAbstractCell == null)
 				{
-					// If the source cell in unreachable, use one of the adjacent reachable cells instead.
+					// If the source cell is unreachable, use one of the adjacent reachable cells instead.
 					if (sources != null && sources.Contains(cell))
 					{
 						foreach (var dir in CVec.Directions)
 						{
 							var adjacentSource = cell + dir;
-							if (!world.Map.Contains(adjacentSource))
+							if (!world.Map.Contains(adjacentSource) ||
+								(unpathableNodes != null && unpathableNodes.Contains(adjacentSource)))
 								continue;
 
 							// Ideally we'd choose the cheapest cell rather than just any one of them,
@@ -1132,7 +1165,7 @@ namespace OpenRA.Mods.Common.Pathfinder
 					if (maybeAbstractCell == null)
 						throw new Exception(
 							"The abstract path should never be searched for an unreachable point. " +
-							"This is a bug. Failed lookup for an abstract cell.");
+							$"Cell {cell} failed lookup for an abstract cell.");
 				}
 
 				var abstractCell = maybeAbstractCell.Value;
@@ -1145,7 +1178,7 @@ namespace OpenRA.Mods.Common.Pathfinder
 					if (!abstractSearch.ExpandToTarget())
 						throw new Exception(
 							"The abstract path should never be searched for an unreachable point. " +
-							"This is a bug. Failed to route to abstract cell.");
+							$"Abstract cell {abstractCell} failed to route to abstract cell.");
 					info = graph[abstractCell];
 				}
 

OpenRA.Mods.Common/Pathfinder/PathSearch.cs

@@ -182,7 +182,11 @@ namespace OpenRA.Mods.Common.Pathfinder
 					return;
 			}
 
-			var estimatedCost = heuristic(location) * heuristicWeightPercentage / 100;
+			var heuristicCost = heuristic(location);
+			if (heuristicCost == PathGraph.PathCostForInvalidPath)
+				return;
+
+			var estimatedCost = heuristicCost * heuristicWeightPercentage / 100;
 			Graph[location] = new CellInfo(CellStatus.Open, initialCost, initialCost + estimatedCost, location);
 			var connection = new GraphConnection(location, estimatedCost);
 			openQueue.Add(connection);
@@ -237,14 +241,22 @@ namespace OpenRA.Mods.Common.Pathfinder
 					(neighborInfo.Status == CellStatus.Open && costSoFarToNeighbor >= neighborInfo.CostSoFar))
 					continue;
 
-				// Now we may seriously consider this direction using heuristics. If the cell has
-				// already been processed, we can reuse the result (just the difference between the
-				// estimated total and the cost so far)
+				// Now we may seriously consider this direction using heuristics.
 				int estimatedRemainingCostToTarget;
 				if (neighborInfo.Status == CellStatus.Open)
+				{
+					// If the cell has already been processed, we can reuse the result
+					// (just the difference between the estimated total and the cost so far)
 					estimatedRemainingCostToTarget = neighborInfo.EstimatedTotalCost - neighborInfo.CostSoFar;
+				}
 				else
-					estimatedRemainingCostToTarget = heuristic(neighbor) * heuristicWeightPercentage / 100;
+				{
+					// If the heuristic reports the cell is unreachable, we won't consider it.
+					var heuristicCost = heuristic(neighbor);
+					if (heuristicCost == PathGraph.PathCostForInvalidPath)
+						continue;
+					estimatedRemainingCostToTarget = heuristicCost * heuristicWeightPercentage / 100;
+				}
 
 				recorder?.Add(currentMinNode, neighbor, costSoFarToNeighbor, estimatedRemainingCostToTarget);
 

OpenRA.Mods.Common/Projectiles/AreaBeam.cs

@@ -42,6 +42,9 @@ namespace OpenRA.Mods.Common.Projectiles
 		[Desc("How far beyond the target the projectile keeps on travelling.")]
 		public readonly WDist BeyondTargetRange = new WDist(0);
 
+		[Desc("The minimum distance the beam travels.")]
+		public readonly WDist MinDistance = WDist.Zero;
+
 		[Desc("Damage modifier applied at each range step.")]
 		public readonly int[] Falloff = { 100, 100 };
 
@@ -136,7 +139,19 @@ namespace OpenRA.Mods.Common.Projectiles
 			// Update the target position with the range we shoot beyond the target by
 			// I.e. we can deliberately overshoot, so aim for that position
 			var dir = new WVec(0, -1024, 0).Rotate(WRot.FromYaw(towardsTargetFacing));
-			target += dir * info.BeyondTargetRange.Length / 1024;
+			var dist = (args.SourceActor.CenterPosition - target).Length;
+			int extraDist;
+			if (info.MinDistance.Length > dist)
+			{
+				if (info.MinDistance.Length - dist < info.BeyondTargetRange.Length)
+					extraDist = info.BeyondTargetRange.Length;
+				else
+					extraDist = info.MinDistance.Length - dist;
+			}
+			else
+				extraDist = info.BeyondTargetRange.Length;
+
+			target += dir * extraDist / 1024;
 
 			length = Math.Max((target - headPos).Length / speed.Length, 1);
 			weaponRange = new WDist(Util.ApplyPercentageModifiers(args.Weapon.Range.Length, args.RangeModifiers));

OpenRA.Mods.Common/Projectiles/Bullet.cs

@@ -197,7 +197,7 @@ namespace OpenRA.Mods.Common.Projectiles
 			if (info.ContrailLength > 0)
 			{
 				var startcolor = info.ContrailStartColorUsePlayerColor ? Color.FromArgb(info.ContrailStartColorAlpha, args.SourceActor.Owner.Color) : Color.FromArgb(info.ContrailStartColorAlpha, info.ContrailStartColor);
-				var endcolor = info.ContrailEndColorUsePlayerColor ? Color.FromArgb(info.ContrailEndColorAlpha, args.SourceActor.Owner.Color) : Color.FromArgb(info.ContrailEndColorAlpha, info.ContrailEndColor ?? info.ContrailStartColor);
+				var endcolor = info.ContrailEndColorUsePlayerColor ? Color.FromArgb(info.ContrailEndColorAlpha, args.SourceActor.Owner.Color) : Color.FromArgb(info.ContrailEndColorAlpha, info.ContrailEndColor ?? startcolor);
 				contrail = new ContrailRenderable(world, startcolor, endcolor, info.ContrailWidth, info.ContrailLength, info.ContrailDelay, info.ContrailZOffset);
 			}
 

OpenRA.Mods.Common/Projectiles/Missile.cs

@@ -283,7 +283,7 @@ namespace OpenRA.Mods.Common.Projectiles
 			if (info.ContrailLength > 0)
 			{
 				var startcolor = info.ContrailStartColorUsePlayerColor ? Color.FromArgb(info.ContrailStartColorAlpha, args.SourceActor.Owner.Color) : Color.FromArgb(info.ContrailStartColorAlpha, info.ContrailStartColor);
-				var endcolor = info.ContrailEndColorUsePlayerColor ? Color.FromArgb(info.ContrailEndColorAlpha, args.SourceActor.Owner.Color) : Color.FromArgb(info.ContrailEndColorAlpha, info.ContrailEndColor ?? info.ContrailStartColor);
+				var endcolor = info.ContrailEndColorUsePlayerColor ? Color.FromArgb(info.ContrailEndColorAlpha, args.SourceActor.Owner.Color) : Color.FromArgb(info.ContrailEndColorAlpha, info.ContrailEndColor ?? startcolor);
 				contrail = new ContrailRenderable(world, startcolor, endcolor, info.ContrailWidth, info.ContrailLength, info.ContrailDelay, info.ContrailZOffset);
 			}
 

OpenRA.Mods.Common/Traits/Air/Aircraft.cs

@@ -868,8 +868,7 @@ namespace OpenRA.Mods.Common.Traits
 		public void AddInfluence((CPos, SubCell)[] landingCells)
 		{
 			if (HasInfluence())
-				throw new InvalidOperationException(
-					$"Cannot {nameof(AddInfluence)} until previous influence is removed with {nameof(RemoveInfluence)}");
+				self.World.ActorMap.RemoveInfluence(self, this);
 
 			this.landingCells = landingCells;
 			if (self.IsInWorld)

OpenRA.Mods.Common/Traits/AutoCarryall.cs

@@ -106,30 +106,33 @@ namespace OpenRA.Mods.Common.Traits
 		{
 			readonly Actor cargo;
 			readonly Carryable carryable;
-			readonly CarryallInfo carryallInfo;
+			readonly Carryall carryall;
 
 			public FerryUnit(Actor self, Actor cargo)
 			{
 				this.cargo = cargo;
 				carryable = cargo.Trait<Carryable>();
-				carryallInfo = self.Trait<Carryall>().Info;
+				carryall = self.Trait<Carryall>();
 			}
 
 			protected override void OnFirstRun(Actor self)
 			{
 				if (!cargo.IsDead)
-					QueueChild(new PickupUnit(self, cargo, 0, carryallInfo.TargetLineColor));
+					QueueChild(new PickupUnit(self, cargo, 0, carryall.Info.TargetLineColor));
 			}
 
 			public override bool Tick(Actor self)
 			{
 				if (cargo.IsDead)
+				{
+					carryall.UnreserveCarryable(self);
 					return true;
+				}
 
-				var dropRange = carryallInfo.DropRange;
+				var dropRange = carryall.Info.DropRange;
 				var destination = carryable.Destination;
 				if (destination != null)
-					self.QueueActivity(true, new DeliverUnit(self, Target.FromCell(self.World, destination.Value), dropRange, carryallInfo.TargetLineColor));
+					self.QueueActivity(true, new DeliverUnit(self, Target.FromCell(self.World, destination.Value), dropRange, carryall.Info.TargetLineColor));
 
 				return true;
 			}

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

@@ -102,7 +102,7 @@ namespace OpenRA.Mods.Common.Traits
 
 			// Find new harvesters
 			// TODO: Look for a more performance-friendly way to update this list
-			var newHarvesters = world.ActorsHavingTrait<Harvester>().Where(a => a.Owner == player && !harvesters.ContainsKey(a));
+			var newHarvesters = world.ActorsHavingTrait<Harvester>().Where(a => !unitCannotBeOrdered(a) && !harvesters.ContainsKey(a));
 			foreach (var a in newHarvesters)
 				harvesters[a] = new HarvesterTraitWrapper(a);
 

OpenRA.Mods.Common/Traits/Carryall.cs

@@ -256,7 +256,11 @@ namespace OpenRA.Mods.Common.Traits
 		public virtual void UnreserveCarryable(Actor self)
 		{
 			if (Carryable != null && Carryable.IsInWorld && !Carryable.IsDead)
-				Carryable.Trait<Carryable>().UnReserve(Carryable);
+			{
+				var carryable = Carryable.Trait<Carryable>();
+				if (carryable.Carrier == self)
+					carryable.UnReserve(Carryable);
+			}
 
 			Carryable = null;
 			State = CarryallState.Idle;

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

@@ -73,7 +73,7 @@ namespace OpenRA.Mods.Common.Traits
 			this.info = info;
 
 			startcolor = info.StartColorUsePlayerColor ? Color.FromArgb(info.StartColorAlpha, self.Owner.Color) : Color.FromArgb(info.StartColorAlpha, info.StartColor);
-			endcolor = info.EndColorUsePlayerColor ? Color.FromArgb(info.EndColorAlpha, self.Owner.Color) : Color.FromArgb(info.EndColorAlpha, info.EndColor ?? info.StartColor);
+			endcolor = info.EndColorUsePlayerColor ? Color.FromArgb(info.EndColorAlpha, self.Owner.Color) : Color.FromArgb(info.EndColorAlpha, info.EndColor ?? startcolor);
 			trail = new ContrailRenderable(self.World, startcolor, endcolor, info.TrailWidth, info.TrailLength, info.TrailDelay, info.ZOffset);
 
 			body = self.Trait<BodyOrientation>();

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

@@ -46,6 +46,7 @@ namespace OpenRA.Mods.Common.Traits
 		WorldRenderer worldRenderer;
 
 		public MapPlayers Players { get; private set; }
+		PlayerReference worldOwner;
 
 		public EditorActorLayer(EditorActorLayerInfo info)
 		{
@@ -59,7 +60,7 @@ namespace OpenRA.Mods.Common.Traits
 
 			Players = new MapPlayers(w.Map.PlayerDefinitions);
 
-			var worldOwner = Players.Players.Select(kvp => kvp.Value).First(p => !p.Playable && p.OwnsWorld);
+			worldOwner = Players.Players.Select(kvp => kvp.Value).First(p => !p.Playable && p.OwnsWorld);
 			w.SetWorldOwner(new Player(w, null, worldOwner, playerRandom));
 		}
 
@@ -126,11 +127,17 @@ namespace OpenRA.Mods.Common.Traits
 
 		public EditorActorPreview Add(string id, ActorReference reference, bool initialSetup = false)
 		{
-			var owner = Players.Players[reference.Get<OwnerInit>().InternalName];
+			// If an actor's doesn't have a valid owner transfer ownership to neutral
+			var ownerInit = reference.Get<OwnerInit>();
+			if (!Players.Players.TryGetValue(ownerInit.InternalName, out var owner))
+			{
+				owner = worldOwner;
+				reference.Remove(ownerInit);
+				reference.Add(new OwnerInit(worldOwner.Name));
+			}
+
 			var preview = new EditorActorPreview(worldRenderer, id, reference, owner);
-
 			Add(preview, initialSetup);
-
 			return preview;
 		}
 

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

@@ -35,10 +35,13 @@ namespace OpenRA.Mods.Common.Traits
 			{
 				var actorReference = new ActorReference(kv.Value.Value, kv.Value.ToDictionary());
 
-				// If there is no real player associated, don't spawn it.
-				var ownerName = actorReference.Get<OwnerInit>().InternalName;
-				if (!world.Players.Any(p => p.InternalName == ownerName))
-					continue;
+				// If an actor's doesn't have a valid owner transfer ownership to neutral
+				var ownerInit = actorReference.Get<OwnerInit>();
+				if (!world.Players.Any(p => p.InternalName == ownerInit.InstanceName))
+				{
+					actorReference.Remove(ownerInit);
+					actorReference.Add(new OwnerInit(world.WorldActor.Owner));
+				}
 
 				actorReference.Add(new SkipMakeAnimsInit());
 				actorReference.Add(new SpawnedByMapInit(kv.Key));

OpenRA.Mods.Common/Widgets/ButtonWidget.cs

@@ -62,7 +62,7 @@ namespace OpenRA.Mods.Common.Widgets
 
 		// Equivalent to OnMouseUp, but without an input arg
 		public Action OnClick = () => { };
-		public Action OnDoubleClick = () => { };
+		public Action OnDoubleClick = null;
 		public Action<KeyInput> OnKeyPress = _ => { };
 
 		public string Cursor = ChromeMetrics.Get<string>("ButtonCursor");
@@ -163,7 +163,7 @@ namespace OpenRA.Mods.Common.Widgets
 				return false;
 
 			var disabled = IsDisabled();
-			if (HasMouseFocus && mi.Event == MouseInputEvent.Up && mi.MultiTapCount == 2)
+			if (HasMouseFocus && mi.Event == MouseInputEvent.Up && mi.MultiTapCount == 2 && OnDoubleClick != null)
 			{
 				if (!disabled)
 				{

OpenRA.Mods.Common/Widgets/Logic/Editor/ActorEditLogic.cs

@@ -32,6 +32,7 @@ namespace OpenRA.Mods.Common.Widgets.Logic
 		readonly BackgroundWidget actorEditPanel;
 		readonly LabelWidget typeLabel;
 		readonly TextFieldWidget actorIDField;
+		readonly HashSet<TextFieldWidget> typableFields = new HashSet<TextFieldWidget>();
 		readonly LabelWidget actorIDErrorLabel;
 
 		readonly Widget initContainer;
@@ -328,6 +329,10 @@ namespace OpenRA.Mods.Common.Widgets.Logic
 									if (float.TryParse(valueField.Text, out var result))
 										slider.UpdateValue(result);
 								};
+
+								valueField.OnEscKey = _ => { valueField.YieldKeyboardFocus(); return true; };
+								valueField.OnEnterKey = _ => { valueField.YieldKeyboardFocus(); return true; };
+								typableFields.Add(valueField);
 							}
 
 							initContainer.AddChild(sliderContainer);
@@ -372,11 +377,10 @@ namespace OpenRA.Mods.Common.Widgets.Logic
 				actorEditPanel.Bounds.X = origin.X + editPanelPadding;
 				actorEditPanel.Bounds.Y = origin.Y;
 			}
-			else
+			else if (CurrentActor != null)
 			{
 				// Selected actor is null, hide the border and edit panel.
-				actorIDField.YieldKeyboardFocus();
-				CurrentActor = null;
+				Close();
 			}
 		}
 
@@ -402,6 +406,9 @@ namespace OpenRA.Mods.Common.Widgets.Logic
 		void Close()
 		{
 			actorIDField.YieldKeyboardFocus();
+			foreach (var f in typableFields)
+				f.YieldKeyboardFocus();
+
 			editor.DefaultBrush.SelectedActor = null;
 			CurrentActor = null;
 		}

OpenRA.Mods.Common/Widgets/Logic/Ingame/DebugMenuLogic.cs

@@ -9,6 +9,7 @@
  */
 #endregion
 
+using System;
 using OpenRA.Mods.Common.Traits;
 using OpenRA.Traits;
 using OpenRA.Widgets;
@@ -25,41 +26,27 @@ namespace OpenRA.Mods.Common.Widgets.Logic
 
 			var visibilityCheckbox = widget.GetOrNull<CheckboxWidget>("DISABLE_VISIBILITY_CHECKS");
 			if (visibilityCheckbox != null)
-			{
-				visibilityCheckbox.IsChecked = () => devTrait.DisableShroud;
-				visibilityCheckbox.OnClick = () => Order(world, "DevVisibility");
-			}
+				BindOrderCheckbox(visibilityCheckbox, world, "DevVisibility", () => devTrait.DisableShroud);
 
 			var pathCheckbox = widget.GetOrNull<CheckboxWidget>("SHOW_UNIT_PATHS");
 			if (pathCheckbox != null)
-			{
-				pathCheckbox.IsChecked = () => devTrait.PathDebug;
-				pathCheckbox.OnClick = () => Order(world, "DevPathDebug");
-			}
+				BindOrderCheckbox(pathCheckbox, world, "DevPathDebug", () => devTrait.PathDebug);
 
 			var cashButton = widget.GetOrNull<ButtonWidget>("GIVE_CASH");
 			if (cashButton != null)
-				cashButton.OnClick = () =>
-				world.IssueOrder(new Order("DevGiveCash", world.LocalPlayer.PlayerActor, false));
+				cashButton.OnClick = () => IssueOrder(world, "DevGiveCash");
 
 			var growResourcesButton = widget.GetOrNull<ButtonWidget>("GROW_RESOURCES");
 			if (growResourcesButton != null)
-				growResourcesButton.OnClick = () =>
-				world.IssueOrder(new Order("DevGrowResources", world.LocalPlayer.PlayerActor, false));
+				growResourcesButton.OnClick = () => IssueOrder(world, "DevGrowResources");
 
 			var fastBuildCheckbox = widget.GetOrNull<CheckboxWidget>("INSTANT_BUILD");
 			if (fastBuildCheckbox != null)
-			{
-				fastBuildCheckbox.IsChecked = () => devTrait.FastBuild;
-				fastBuildCheckbox.OnClick = () => Order(world, "DevFastBuild");
-			}
+				BindOrderCheckbox(fastBuildCheckbox, world, "DevFastBuild", () => devTrait.FastBuild);
 
 			var fastChargeCheckbox = widget.GetOrNull<CheckboxWidget>("INSTANT_CHARGE");
 			if (fastChargeCheckbox != null)
-			{
-				fastChargeCheckbox.IsChecked = () => devTrait.FastCharge;
-				fastChargeCheckbox.OnClick = () => Order(world, "DevFastCharge");
-			}
+				BindOrderCheckbox(fastChargeCheckbox, world, "DevFastCharge", () => devTrait.FastCharge);
 
 			var showCombatCheckbox = widget.GetOrNull<CheckboxWidget>("SHOW_COMBATOVERLAY");
 			if (showCombatCheckbox != null)
@@ -103,34 +90,23 @@ namespace OpenRA.Mods.Common.Widgets.Logic
 
 			var allTechCheckbox = widget.GetOrNull<CheckboxWidget>("ENABLE_TECH");
 			if (allTechCheckbox != null)
-			{
-				allTechCheckbox.IsChecked = () => devTrait.AllTech;
-				allTechCheckbox.OnClick = () => Order(world, "DevEnableTech");
-			}
+				BindOrderCheckbox(allTechCheckbox, world, "DevEnableTech", () => devTrait.AllTech);
 
 			var powerCheckbox = widget.GetOrNull<CheckboxWidget>("UNLIMITED_POWER");
 			if (powerCheckbox != null)
-			{
-				powerCheckbox.IsChecked = () => devTrait.UnlimitedPower;
-				powerCheckbox.OnClick = () => Order(world, "DevUnlimitedPower");
-			}
+				BindOrderCheckbox(powerCheckbox, world, "DevUnlimitedPower", () => devTrait.UnlimitedPower);
 
 			var buildAnywhereCheckbox = widget.GetOrNull<CheckboxWidget>("BUILD_ANYWHERE");
 			if (buildAnywhereCheckbox != null)
-			{
-				buildAnywhereCheckbox.IsChecked = () => devTrait.BuildAnywhere;
-				buildAnywhereCheckbox.OnClick = () => Order(world, "DevBuildAnywhere");
-			}
+				BindOrderCheckbox(buildAnywhereCheckbox, world, "DevBuildAnywhere", () => devTrait.BuildAnywhere);
 
 			var explorationButton = widget.GetOrNull<ButtonWidget>("GIVE_EXPLORATION");
 			if (explorationButton != null)
-				explorationButton.OnClick = () =>
-				world.IssueOrder(new Order("DevGiveExploration", world.LocalPlayer.PlayerActor, false));
+				explorationButton.OnClick = () => IssueOrder(world, "DevGiveExploration");
 
 			var noexplorationButton = widget.GetOrNull<ButtonWidget>("RESET_EXPLORATION");
 			if (noexplorationButton != null)
-				noexplorationButton.OnClick = () =>
-				world.IssueOrder(new Order("DevResetExploration", world.LocalPlayer.PlayerActor, false));
+				noexplorationButton.OnClick = () => IssueOrder(world, "DevResetExploration");
 
 			var showActorTagsCheckbox = widget.GetOrNull<CheckboxWidget>("SHOW_ACTOR_TAGS");
 			if (showActorTagsCheckbox != null)
@@ -153,7 +129,18 @@ namespace OpenRA.Mods.Common.Widgets.Logic
 			}
 		}
 
-		public static void Order(World world, string order)
+		static void BindOrderCheckbox(CheckboxWidget checkbox, World world, string order, Func<bool> getValue)
+		{
+			var isChecked = new PredictedCachedTransform<bool, bool>(state => state);
+			checkbox.IsChecked = () => isChecked.Update(getValue());
+			checkbox.OnClick = () =>
+			{
+				isChecked.Predict(!getValue());
+				IssueOrder(world, order);
+			};
+		}
+
+		public static void IssueOrder(World world, string order)
 		{
 			world.IssueOrder(new Order(order, world.LocalPlayer.PlayerActor, false));
 		}

OpenRA.Mods.Common/Widgets/Logic/Ingame/ObserverStatsLogic.cs

@@ -448,6 +448,10 @@ namespace OpenRA.Mods.Common.Widgets.Logic
 			var harvesters = template.Get<LabelWidget>("HARVESTERS");
 			harvesters.GetText = () => world.ActorsWithTrait<Harvester>().Count(a => a.Actor.Owner == player && !a.Actor.IsDead && !a.Trait.IsTraitDisabled).ToString();
 
+			var carryalls = template.GetOrNull<LabelWidget>("CARRYALLS");
+			if (carryalls != null)
+				carryalls.GetText = () => world.ActorsWithTrait<AutoCarryall>().Count(a => a.Actor.Owner == player && !a.Actor.IsDead).ToString();
+
 			var derricks = template.GetOrNull<LabelWidget>("DERRICKS");
 			if (derricks != null)
 				derricks.GetText = () => world.ActorsHavingTrait<UpdatesDerrickCount>().Count(a => a.Owner == player && !a.IsDead).ToString();

OpenRA.Mods.Common/Widgets/Logic/Installation/DownloadPackageLogic.cs

@@ -107,7 +107,7 @@ namespace OpenRA.Mods.Common.Widgets.Logic
 				var dataTotal = 0.0f;
 				var mag = 0;
 				var dataSuffix = "";
-				var host = downloadHost ?? UnknownHost;
+				var host = downloadHost ?? modData.Translation.GetString(UnknownHost);
 
 				if (total < 0)
 				{
@@ -139,11 +139,12 @@ namespace OpenRA.Mods.Common.Widgets.Logic
 
 			Action<string> onError = s => Game.RunAfterTick(() =>
 			{
-				Log.Write("install", "Download failed: " + s);
+				var host = downloadHost ?? modData.Translation.GetString(UnknownHost);
+				Log.Write("install", $"Download from {host} failed: " + s);
 
 				progressBar.Indeterminate = false;
 				progressBar.Percentage = 100;
-				getStatusText = () => "Error: " + s;
+				getStatusText = () => $"{host}: Error: {s}";
 				retryButton.IsVisible = () => true;
 				cancelButton.OnClick = Ui.CloseWindow;
 			});

OpenRA.Mods.Common/Widgets/Logic/Lobby/LobbyOptionsLogic.cs

@@ -101,18 +101,25 @@ namespace OpenRA.Mods.Common.Widgets.Logic
 				}
 
 				var checkbox = checkboxColumns.Dequeue();
-				var optionValue = new CachedTransform<Session.Global, Session.LobbyOptionState>(
-					gs => gs.LobbyOptions[option.Id]);
+				var optionEnabled = new PredictedCachedTransform<Session.Global, bool>(
+					gs => gs.LobbyOptions[option.Id].IsEnabled);
+
+				var optionLocked = new CachedTransform<Session.Global, bool>(
+					gs => gs.LobbyOptions[option.Id].IsLocked);
 
 				checkbox.GetText = () => option.Name;
 				if (option.Description != null)
 					checkbox.GetTooltipText = () => option.Description;
 
 				checkbox.IsVisible = () => true;
-				checkbox.IsChecked = () => optionValue.Update(orderManager.LobbyInfo.GlobalSettings).IsEnabled;
-				checkbox.IsDisabled = () => configurationDisabled() || optionValue.Update(orderManager.LobbyInfo.GlobalSettings).IsLocked;
-				checkbox.OnClick = () => orderManager.IssueOrder(Order.Command(
-					$"option {option.Id} {!optionValue.Update(orderManager.LobbyInfo.GlobalSettings).IsEnabled}"));
+				checkbox.IsChecked = () => optionEnabled.Update(orderManager.LobbyInfo.GlobalSettings);
+				checkbox.IsDisabled = () => configurationDisabled() || optionLocked.Update(orderManager.LobbyInfo.GlobalSettings);
+				checkbox.OnClick = () =>
+				{
+					var state = !optionEnabled.Update(orderManager.LobbyInfo.GlobalSettings);
+					orderManager.IssueOrder(Order.Command($"option {option.Id} {state}"));
+					optionEnabled.Predict(state);
+				};
 			}
 
 			foreach (var option in allOptions.Where(o => !(o is LobbyBooleanOption)))

OpenRA.Mods.Common/Widgets/Logic/Lobby/LobbyUtils.cs

@@ -657,12 +657,21 @@ namespace OpenRA.Mods.Common.Widgets.Logic
 		public static void SetupEditableReadyWidget(Widget parent, Session.Client c, OrderManager orderManager, MapPreview map, bool isEnabled)
 		{
 			var status = parent.Get<CheckboxWidget>("STATUS_CHECKBOX");
-			status.IsChecked = () => orderManager.LocalClient.IsReady || c.Bot != null;
 			status.IsVisible = () => true;
 			status.IsDisabled = () => c.Bot != null || map.Status != MapStatus.Available || !isEnabled;
-
-			var state = orderManager.LocalClient.IsReady ? Session.ClientState.NotReady : Session.ClientState.Ready;
-			status.OnClick = () => orderManager.IssueOrder(Order.Command($"state {state}"));
+			if (c.Bot == null)
+			{
+				var isChecked = new PredictedCachedTransform<Session.Client, bool>(cc => cc.IsReady);
+				status.IsChecked = () => isChecked.Update(c);
+				status.OnClick = () =>
+				{
+					var state = isChecked.Update(c) ? Session.ClientState.NotReady : Session.ClientState.Ready;
+					orderManager.IssueOrder(Order.Command($"state {state}"));
+					isChecked.Predict(!c.IsReady);
+				};
+			}
+			else
+				status.IsChecked = () => true;
 		}
 
 		public static void SetupReadyWidget(Widget parent, Session.Client c)

OpenRA.Mods.Common/Widgets/Logic/SystemInfoPromptLogic.cs

@@ -20,7 +20,7 @@ namespace OpenRA.Mods.Common.Widgets.Logic
 	public class SystemInfoPromptLogic : ChromeLogic
 	{
 		// Increment the version number when adding new stats
-		const int SystemInformationVersion = 4;
+		const int SystemInformationVersion = 5;
 
 		static Dictionary<string, (string Label, string Value)> GetSystemInformation()
 		{
@@ -29,6 +29,7 @@ namespace OpenRA.Mods.Common.Widgets.Logic
 			{
 				{ "id", ("Anonymous ID", Game.Settings.Debug.UUID) },
 				{ "platform", ("OS Type", Platform.CurrentPlatform.ToString()) },
+				{ "arch", ("Architecture", Platform.CurrentArchitecture.ToString()) },
 				{ "os", ("OS Version", Environment.OSVersion.ToString()) },
 				{ "x64", ("OS is 64 bit", Environment.Is64BitOperatingSystem.ToString()) },
 				{ "x64process", ("Process is 64 bit", Environment.Is64BitProcess.ToString()) },

OpenRA.Mods.Common/Widgets/WidgetUtils.cs

@@ -419,4 +419,40 @@ namespace OpenRA.Mods.Common.Widgets
 			return lastOutput;
 		}
 	}
+
+	public class PredictedCachedTransform<T, U>
+	{
+		readonly Func<T, U> transform;
+
+		bool initialized;
+		T lastInput;
+		U lastOutput;
+
+		bool predicted;
+		U prediction;
+
+		public PredictedCachedTransform(Func<T, U> transform)
+		{
+			this.transform = transform;
+		}
+
+		public void Predict(U value)
+		{
+			predicted = true;
+			prediction = value;
+		}
+
+		public U Update(T input)
+		{
+			if ((predicted || initialized) && ((input == null && lastInput == null) || (input != null && input.Equals(lastInput))))
+				return predicted ? prediction : lastOutput;
+
+			predicted = false;
+			initialized = true;
+			lastInput = input;
+			lastOutput = transform(input);
+
+			return lastOutput;
+		}
+	}
 }

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

@@ -1,9 +1,9 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <ItemGroup>
     <ProjectReference Include="..\OpenRA.Game\OpenRA.Game.csproj" />
-    <PackageReference Include="OpenRA-Freetype6" Version="1.0.4" />
-    <PackageReference Include="OpenRA-OpenAL-CS" Version="1.0.16" />
-    <PackageReference Include="OpenRA-SDL2-CS" Version="1.0.31" />
+    <PackageReference Include="OpenRA-Freetype6" Version="1.0.9" />
+    <PackageReference Include="OpenRA-OpenAL-CS" Version="1.0.17" />
+    <PackageReference Include="OpenRA-SDL2-CS" Version="1.0.36" />
   </ItemGroup>
   <ItemGroup>
     <Content Include="OpenRA.Platforms.Default.dll.config" Condition="'$(TargetPlatform)' != 'win-x64' And '$(TargetPlatform)' != 'win-x86'">

OpenRA.WindowsLauncher/OpenRA.WindowsLauncher.csproj

@@ -21,7 +21,7 @@
     </AssemblyAttribute>
   </ItemGroup>
   <ItemGroup>
-    <PackageReference Include="OpenRA-SDL2-CS" Version="1.0.31" />
+    <PackageReference Include="OpenRA-SDL2-CS" Version="1.0.36" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\OpenRA.Game\OpenRA.Game.csproj" />

mods/cnc/chrome/ingame.yaml

@@ -1549,7 +1549,7 @@ Container@PLAYER_WIDGETS:
 			X: WINDOW_RIGHT - WIDTH - 5
 			Y: 5
 			Width: 230
-			Height: 291
+			Height: 314
 			ImageCollection: sidebar
 			ImageName: background-sidebar
 			ClickThrough: false

mods/d2k/chrome/ingame-observer.yaml

@@ -313,7 +313,7 @@ Container@OBSERVER_WIDGETS:
 						Container@ECONOMY_STATS_HEADERS:
 							X: 0
 							Y: 0
-							Width: 640
+							Width: 720
 							Height: PARENT_BOTTOM
 							Children:
 								ColorBlock@HEADER_COLOR:
@@ -384,6 +384,14 @@ Container@OBSERVER_WIDGETS:
 									Text: Harvesters
 									Align: Right
 									Shadow: True
+								Label@CARRYALLS_HEADER:
+									X: 635
+									Width: 80
+									Height: PARENT_BOTTOM
+									Font: Bold
+									Text: Carryalls
+									Align: Right
+									Shadow: True
 						Container@PRODUCTION_STATS_HEADERS:
 							X: 0
 							Y: 0
@@ -717,7 +725,7 @@ Container@OBSERVER_WIDGETS:
 						ScrollItem@ECONOMY_PLAYER_TEMPLATE:
 							X: 0
 							Y: 0
-							Width: 640
+							Width: 720
 							Height: 25
 							Background: scrollitem-nohover
 							Children:
@@ -785,6 +793,13 @@ Container@OBSERVER_WIDGETS:
 									Height: PARENT_BOTTOM
 									Align: Right
 									Shadow: True
+								Label@CARRYALLS:
+									X: 635
+									Y: 0
+									Width: 80
+									Height: PARENT_BOTTOM
+									Align: Right
+									Shadow: True
 						ScrollItem@PRODUCTION_PLAYER_TEMPLATE:
 							X: 0
 							Y: 0

mods/d2k/tilesets/arrakis.yaml

@@ -175,8 +175,8 @@ Templates:
 		Size: 1,2
 		Categories: Sand-Rock-Cliff
 		Tiles:
-			0: Transition
-			1: Transition
+			0: Rough
+			1: Rough
 	Template@10:
 		Id: 10
 		Images: BLOXBASE.R8

mods/d2k/weapons/other.yaml

@@ -13,6 +13,7 @@ Sound:
 		Falloff: 0, 0, 100, 0
 		Range: 0, 0c450, 4c0, 8c0
 		BeyondTargetRange: 1c0
+		MinDistance: 5c0
 		Color: 00FFFFC8
 	Warhead@1Dam: SpreadDamage
 		Range: 0, 32

mods/ra/chrome/ingame-player.yaml

@@ -603,7 +603,7 @@ Container@PLAYER_WIDGETS:
 			X: WINDOW_RIGHT - 250
 			Y: 272
 			Width: 238
-			Height: 27
+			Height: 28
 			ImageCollection: sidebar
 			ImageName: background-moneybin
 			ClickThrough: false

mods/ra/maps/siberian-conflict-3-wasteland/wasteland.lua

@@ -44,7 +44,7 @@ Tick = function()
 		USSR.MarkCompletedObjective(SovietObj)
 	end
 
-	if USSR.HasNoRequiredUnits() then
+	if USSR.HasNoRequiredUnits() and BadGuy.HasNoRequiredUnits() then
 		Allies.MarkCompletedObjective(DestroyAll)
 	end
 end

mods/ra/maps/soviet-11a/rules.yaml

@@ -27,6 +27,9 @@ AFLD:
 	ParatroopersPower@paratroopers:
 		DropItems: E1,E1,E1,E2,E2
 
+HELI:
+	-MustBeDestroyed:
+
 ATEK:
 	Buildable:
 		Prerequisites: ~disabled

mods/ra/maps/soviet-11b/rules.yaml

@@ -27,6 +27,9 @@ AFLD:
 	ParatroopersPower@paratroopers:
 		DropItems: E1,E1,E1,E2,E2
 
+HELI:
+	-MustBeDestroyed:
+
 ATEK:
 	Buildable:
 		Prerequisites: ~disabled

packaging/functions.sh

@@ -10,7 +10,7 @@
 # Arguments:
 #   SRC_PATH: Path to the root OpenRA directory
 #   DEST_PATH: Path to the root of the install destination (will be created if necessary)
-#   TARGETPLATFORM: Platform type (win-x86, win-x64, osx-x64, linux-x64, unix-generic)
+#   TARGETPLATFORM: Platform type (win-x86, win-x64, osx-x64, osx-arm64, linux-x64, linux-arm64, unix-generic)
 #   RUNTIME: Runtime type (net6, mono)
 #   COPY_GENERIC_LAUNCHER: If set to True the OpenRA.exe will also be copied (True, False)
 #   COPY_CNC_DLL: If set to True the OpenRA.Mods.Cnc.dll will also be copied (True, False)
@@ -68,13 +68,13 @@ install_assemblies() (
 			install -m644 "${LIB}" "${DEST_PATH}"
 		done
 
-		if [ "${TARGETPLATFORM}" = "linux-x64" ]; then
+		if [ "${TARGETPLATFORM}" = "linux-x64" ] || [ "${TARGETPLATFORM}" = "linux-arm64" ]; then
 			for LIB in "${SRC_PATH}/bin/"*.so; do
 				install -m755 "${LIB}" "${DEST_PATH}"
 			done
 		fi
 
-		if [ "${TARGETPLATFORM}" = "osx-x64" ]; then
+		if [ "${TARGETPLATFORM}" = "osx-x64" ] || [ "${TARGETPLATFORM}" = "osx-arm64" ]; then
 			for LIB in "${SRC_PATH}/bin/"*.dylib; do
 				install -m755 "${LIB}" "${DEST_PATH}"
 			done

packaging/linux/openra-server.in

@@ -3,4 +3,10 @@ set -o errexit || exit $?
 
 cd "{GAME_INSTALL_DIR}"
 
-mono {DEBUG} OpenRA.Server.dll Game.Mod={MODID} "$@"
+if test -f "OpenRA.Server"; then
+	./OpenRA.Server Game.Mod={MODID} "$@"
+elif command -v mono >/dev/null 2>&1 && [ "$(grep -c .NETCoreApp,Version= OpenRA.Server.dll)" = "0" ]; then
+	mono {DEBUG} OpenRA.Server.dll Game.Mod={MODID} "$@"
+else
+	dotnet OpenRA.Server.dll Game.Mod={MODID} "$@"
+fi

packaging/linux/openra.in

@@ -11,7 +11,13 @@ if [ "${1#${PROTOCOL_PREFIX}}" != "${1}" ]; then
 fi
 
 # Run the game
-mono {DEBUG} OpenRA.dll Game.Mod={MODID} Engine.LaunchPath="{BIN_DIR}/openra-{MODID}" "${JOIN_SERVER}" "$@" && rc=0 || rc=$?
+if test -f "OpenRA"; then
+	./OpenRA Game.Mod={MODID} Engine.LaunchPath="{BIN_DIR}/openra-{MODID}" "${JOIN_SERVER}" "$@" && rc=0 || rc=$?
+elif command -v mono >/dev/null 2>&1 && [ "$(grep -c .NETCoreApp,Version= OpenRA.dll)" = "0" ]; then
+	mono {DEBUG} OpenRA.dll Game.Mod={MODID} Engine.LaunchPath="{BIN_DIR}/openra-{MODID}" "${JOIN_SERVER}" "$@" && rc=0 || rc=$?
+else
+	dotnet OpenRA.dll Game.Mod={MODID} Engine.LaunchPath="{BIN_DIR}/openra-{MODID}" "${JOIN_SERVER}" "$@" && rc=0 || rc=$?
+fi
 
 # Show a crash dialog if something went wrong
 if [ "${rc}" != 0 ] && [ "${rc}" != 1 ]; then

packaging/macos/Info.plist.in

@@ -48,5 +48,7 @@
 	<string>{JOIN_SERVER_URL_SCHEME}</string>
 	<key>NSRequiresAquaSystemAppearance</key>
 	<false/>
+	<key>NSPrefersDisplaySafeAreaCompatibilityMode</key>
+	<true/>
 </dict>
 </plist>

packaging/macos/apphost-mono.c

@@ -0,0 +1,48 @@
+/*
+ * Copyright 2007-2022 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. For more information,
+ * see COPYING.
+ */
+
+//
+// A custom apphost is required (instead of just invoking `mono OpenRA.dll ...` directly)
+// because macOS will only properly associate dock icons and tooltips to windows that are
+// created by a process in the Contents/MacOS directory (not subdirectories).
+//
+// Based on https://github.com/mono/monodevelop/blob/main/main/build/MacOSX/monostub.mm
+
+#include <dlfcn.h>
+#include <stdio.h>
+#include <sys/resource.h>
+
+typedef int (* mono_main)(int argc, char **argv);
+
+int main(int argc, char **argv)
+{
+	// TODO: This snippet increasing the open file limit was copied from
+	// the monodevelop launcher stub. It may not be needed for OpenRA.
+	struct rlimit limit;
+	if (getrlimit(RLIMIT_NOFILE, &limit) == 0 && limit.rlim_cur < 1024)
+	{
+		limit.rlim_cur = limit.rlim_max < 1024 ? limit.rlim_max : 1024;
+		setrlimit(RLIMIT_NOFILE, &limit);
+	}
+
+	void *libmono = dlopen(argv[1], RTLD_LAZY);
+	if (libmono == NULL)
+	{
+		fprintf(stderr, "Failed to load libmonosgen-2.0.dylib: %s\n", dlerror());
+		return 1;
+	}
+
+	mono_main _mono_main = (mono_main)dlsym(libmono, "mono_main");
+	if (!_mono_main)
+	{
+		fprintf(stderr, "Could not load mono_main(): %s\n", dlerror());
+		return 1;
+	}
+
+	return _mono_main(argc - 1, &argv[1]);
+}

packaging/macos/apphost.c

@@ -0,0 +1,84 @@
+/*
+ * Copyright 2007-2022 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. For more information,
+ * see COPYING.
+ */
+
+//
+// A custom apphost is required (instead of just invoking <arch-dir>/OpenRA directly)
+// because macOS will only properly associate dock icons and tooltips to windows that are
+// created by a process in the Contents/MacOS directory (not subdirectories).
+//
+// .NET 6 does not support universal binaries, and the apphost that is created when
+// publishing requires the runtime files to exist in the same directory as the launcher.
+//
+
+#include <dlfcn.h>
+#include <libgen.h>
+#include <stdio.h>
+
+typedef void* hostfxr_handle;
+struct hostfxr_initialize_parameters
+{
+	size_t size;
+	char *host_path;
+	char *dotnet_root;
+};
+
+typedef int32_t(*hostfxr_initialize_for_dotnet_command_line_fn)(
+	int argc,
+	char **argv,
+	struct hostfxr_initialize_parameters *parameters,
+	hostfxr_handle *host_context_handle);
+
+typedef int32_t(*hostfxr_run_app_fn)(const hostfxr_handle host_context_handle);
+typedef int32_t(*hostfxr_close_fn)(const hostfxr_handle host_context_handle);
+
+int main(int argc, char **argv)
+{
+	void *lib = dlopen(argv[1], RTLD_LAZY);
+	if (lib == NULL)
+	{
+		fprintf(stderr, "Failed to load %s: %s\n", argv[1], dlerror());
+		return 1;
+	}
+
+	hostfxr_initialize_for_dotnet_command_line_fn hostfxr_initialize_for_dotnet_command_line = (hostfxr_initialize_for_dotnet_command_line_fn)dlsym(lib, "hostfxr_initialize_for_dotnet_command_line");
+	if (!hostfxr_initialize_for_dotnet_command_line)
+	{
+		fprintf(stderr, "Could not load hostfxr_initialize_for_dotnet_command_line(): %s\n", dlerror());
+		return 1;
+	}
+
+	hostfxr_run_app_fn hostfxr_run_app = (hostfxr_run_app_fn)dlsym(lib, "hostfxr_run_app");
+	if (!hostfxr_run_app)
+	{
+		fprintf(stderr, "Could not load hostfxr_run_app(): %s\n", dlerror());
+		return 1;
+	}
+
+	hostfxr_close_fn hostfxr_close = (hostfxr_close_fn)dlsym(lib, "hostfxr_close");
+	if (!hostfxr_close)
+	{
+		fprintf(stderr, "Could not load hostfxr_close(): %s\n", dlerror());
+		return 1;
+	}
+
+	struct hostfxr_initialize_parameters params;
+	params.size = sizeof(params);
+	params.host_path = argv[0];
+	params.dotnet_root = dirname(argv[1]);
+
+	hostfxr_handle host_context_handle;
+	hostfxr_initialize_for_dotnet_command_line(
+	    argc - 2,
+	    &argv[2],
+	    &params,
+	    &host_context_handle);
+
+	hostfxr_run_app(host_context_handle);
+
+	return hostfxr_close(host_context_handle);
+}

packaging/macos/buildpackage.sh

@@ -16,15 +16,15 @@
 
 set -o errexit -o pipefail || exit $?
 
-MONO_TAG="osx-launcher-20201222"
-
-if [ $# -ne "2" ]; then
-	echo "Usage: $(basename "$0") tag outputdir"
+if [[ "${OSTYPE}" != "darwin"* ]]; then
+	echo >&2 "macOS packaging requires a macOS host"
 	exit 1
 fi
 
-if [[ "${OSTYPE}" != "darwin"* ]]; then
-	echo >&2 "macOS packaging requires a macOS host"
+command -v clang >/dev/null 2>&1 || { echo >&2 "macOS packaging requires clang."; exit 1; }
+
+if [ $# -ne "2" ]; then
+	echo "Usage: $(basename "$0") tag outputdir"
 	exit 1
 fi
 
@@ -47,6 +47,7 @@ fi
 
 TAG="${1}"
 OUTPUTDIR="${2}"
+
 SRCDIR="$(pwd)/../.."
 BUILTDIR="$(pwd)/build"
 ARTWORK_DIR="$(pwd)/../artwork/"
@@ -57,15 +58,13 @@ modify_plist() {
 
 # Copies the game files and sets metadata
 build_app() {
-	PLATFORM="${1}"
-	TEMPLATE_DIR="${2}"
-	LAUNCHER_DIR="${3}"
-	MOD_ID="${4}"
-	MOD_NAME="${5}"
-	DISCORD_APPID="${6}"
+	TEMPLATE_DIR="${1}"
+	LAUNCHER_DIR="${2}"
+	MOD_ID="${3}"
+	MOD_NAME="${4}"
+	DISCORD_APPID="${5}"
 
 	LAUNCHER_CONTENTS_DIR="${LAUNCHER_DIR}/Contents"
-	LAUNCHER_ASSEMBLY_DIR="${LAUNCHER_CONTENTS_DIR}/MacOS"
 	LAUNCHER_RESOURCES_DIR="${LAUNCHER_CONTENTS_DIR}/Resources"
 
 	cp -r "${TEMPLATE_DIR}" "${LAUNCHER_DIR}"
@@ -76,12 +75,10 @@ build_app() {
 	fi
 
 	# Install engine and mod files
-	RUNTIME="net6"
-	if [ "${PLATFORM}" = "mono" ]; then
-		RUNTIME="mono"
-	fi
+	install_assemblies "${SRCDIR}" "${LAUNCHER_CONTENTS_DIR}/MacOS/x86_64" "osx-x64" "net6" "True" "True" "${IS_D2K}"
+	install_assemblies "${SRCDIR}" "${LAUNCHER_CONTENTS_DIR}/MacOS/arm64" "osx-arm64" "net6" "True" "True" "${IS_D2K}"
+	install_assemblies "${SRCDIR}" "${LAUNCHER_CONTENTS_DIR}/MacOS/mono" "osx-x64" "mono" "True" "True" "${IS_D2K}"
 
-	install_assemblies "${SRCDIR}" "${LAUNCHER_ASSEMBLY_DIR}" "osx-x64" "${RUNTIME}" "True" "True" "${IS_D2K}"
 	install_data "${SRCDIR}" "${LAUNCHER_RESOURCES_DIR}" "${MOD_ID}"
 	set_engine_version "${TAG}" "${LAUNCHER_RESOURCES_DIR}"
 	set_mod_version "${TAG}" "${LAUNCHER_RESOURCES_DIR}/mods/${MOD_ID}/mod.yaml" "${LAUNCHER_RESOURCES_DIR}/mods/modcontent/mod.yaml"
@@ -108,86 +105,105 @@ build_app() {
 
 	# Sign binaries with developer certificate
 	if [ -n "${MACOS_DEVELOPER_IDENTITY}" ]; then
-		codesign -s "${MACOS_DEVELOPER_IDENTITY}" --timestamp --options runtime -f --entitlements entitlements.plist --deep "${LAUNCHER_DIR}"
+		codesign --sign "${MACOS_DEVELOPER_IDENTITY}" --timestamp --options runtime -f --entitlements entitlements.plist --deep "${LAUNCHER_DIR}"
 	fi
 }
 
-build_platform() {
-	PLATFORM="${1}"
-	DMG_PATH="${2}"
-	echo "Building launchers (${PLATFORM})"
+echo "Building launchers"
 
-	# Prepare generic template for the mods to duplicate and customize
-	TEMPLATE_DIR="${BUILTDIR}/template.app"
-	mkdir -p "${TEMPLATE_DIR}/Contents/Resources"
-	mkdir -p "${TEMPLATE_DIR}/Contents/MacOS"
-	echo "APPL????" > "${TEMPLATE_DIR}/Contents/PkgInfo"
-	cp Info.plist.in "${TEMPLATE_DIR}/Contents/Info.plist"
-	modify_plist "{DEV_VERSION}" "${TAG}" "${TEMPLATE_DIR}/Contents/Info.plist"
-	modify_plist "{FAQ_URL}" "http://wiki.openra.net/FAQ" "${TEMPLATE_DIR}/Contents/Info.plist"
+# Prepare generic template for the mods to duplicate and customize
+TEMPLATE_DIR="${BUILTDIR}/template.app"
+mkdir -p "${TEMPLATE_DIR}/Contents/Resources"
+mkdir -p "${TEMPLATE_DIR}/Contents/MacOS/mono"
+mkdir -p "${TEMPLATE_DIR}/Contents/MacOS/x86_64"
+mkdir -p "${TEMPLATE_DIR}/Contents/MacOS/arm64"
 
-	if [ "${PLATFORM}" = "mono" ]; then
-		modify_plist "{MINIMUM_SYSTEM_VERSION}" "10.9" "${TEMPLATE_DIR}/Contents/Info.plist"
-		clang -m64 launcher-mono.m -o "${TEMPLATE_DIR}/Contents/MacOS/Launcher" -framework AppKit -mmacosx-version-min=10.9
-	else
-		modify_plist "{MINIMUM_SYSTEM_VERSION}" "10.14" "${TEMPLATE_DIR}/Contents/Info.plist"
-		clang -m64 launcher.m -o "${TEMPLATE_DIR}/Contents/MacOS/Launcher" -framework AppKit -mmacosx-version-min=10.14
-	fi
+echo "APPL????" > "${TEMPLATE_DIR}/Contents/PkgInfo"
+cp Info.plist.in "${TEMPLATE_DIR}/Contents/Info.plist"
+modify_plist "{DEV_VERSION}" "${TAG}" "${TEMPLATE_DIR}/Contents/Info.plist"
+modify_plist "{FAQ_URL}" "http://wiki.openra.net/FAQ" "${TEMPLATE_DIR}/Contents/Info.plist"
+modify_plist "{MINIMUM_SYSTEM_VERSION}" "10.11" "${TEMPLATE_DIR}/Contents/Info.plist"
 
-	build_app "${PLATFORM}" "${TEMPLATE_DIR}" "${BUILTDIR}/OpenRA - Red Alert.app" "ra" "Red Alert" "699222659766026240"
-	build_app "${PLATFORM}" "${TEMPLATE_DIR}" "${BUILTDIR}/OpenRA - Tiberian Dawn.app" "cnc" "Tiberian Dawn" "699223250181292033"
-	build_app "${PLATFORM}" "${TEMPLATE_DIR}" "${BUILTDIR}/OpenRA - Dune 2000.app" "d2k" "Dune 2000" "712711732770111550"
+# Compile universal (x86_64 + arm64) Launcher and arch-specific apphosts
+clang apphost.c -o "${TEMPLATE_DIR}/Contents/MacOS/apphost-x86_64" -framework AppKit -target x86_64-apple-macos10.15
+clang apphost.c -o "${TEMPLATE_DIR}/Contents/MacOS/apphost-arm64" -framework AppKit -target arm64-apple-macos10.15
+clang apphost-mono.c -o "${TEMPLATE_DIR}/Contents/MacOS/apphost-mono" -framework AppKit -target x86_64-apple-macos10.11
+clang checkmono.c -o "${TEMPLATE_DIR}/Contents/MacOS/checkmono" -framework AppKit -target x86_64-apple-macos10.11
+clang launcher.m -o "${TEMPLATE_DIR}/Contents/MacOS/Launcher-x86_64" -framework AppKit -target x86_64-apple-macos10.11
+clang launcher.m -o "${TEMPLATE_DIR}/Contents/MacOS/Launcher-arm64" -framework AppKit -target arm64-apple-macos10.15
+lipo -create -output "${TEMPLATE_DIR}/Contents/MacOS/Launcher" "${TEMPLATE_DIR}/Contents/MacOS/Launcher-x86_64" "${TEMPLATE_DIR}/Contents/MacOS/Launcher-arm64"
+rm "${TEMPLATE_DIR}/Contents/MacOS/Launcher-x86_64" "${TEMPLATE_DIR}/Contents/MacOS/Launcher-arm64"
 
-	rm -rf "${TEMPLATE_DIR}"
+build_app "${TEMPLATE_DIR}" "${BUILTDIR}/OpenRA - Red Alert.app" "ra" "Red Alert" "699222659766026240"
+build_app "${TEMPLATE_DIR}" "${BUILTDIR}/OpenRA - Tiberian Dawn.app" "cnc" "Tiberian Dawn" "699223250181292033"
+build_app "${TEMPLATE_DIR}" "${BUILTDIR}/OpenRA - Dune 2000.app" "d2k" "Dune 2000" "712711732770111550"
 
-	echo "Packaging disk image"
-	hdiutil create "${DMG_PATH}" -format UDRW -volname "OpenRA" -fs HFS+ -srcfolder build
-	DMG_DEVICE=$(hdiutil attach -readwrite -noverify -noautoopen "${DMG_PATH}" | egrep '^/dev/' | sed 1q | awk '{print $1}')
-	sleep 2
+rm -rf "${TEMPLATE_DIR}"
 
-	# Background image is created from source svg in artsrc repository
-	mkdir "/Volumes/OpenRA/.background/"
-	tiffutil -cathidpicheck "${ARTWORK_DIR}/macos-background.png" "${ARTWORK_DIR}/macos-background-2x.png" -out "/Volumes/OpenRA/.background/background.tiff"
+echo "Packaging disk image"
+hdiutil create "build.dmg" -format UDRW -volname "OpenRA" -fs HFS+ -srcfolder build
+DMG_DEVICE=$(hdiutil attach -readwrite -noverify -noautoopen "build.dmg" | egrep '^/dev/' | sed 1q | awk '{print $1}')
+sleep 2
 
-	cp "${BUILTDIR}/OpenRA - Red Alert.app/Contents/Resources/ra.icns" "/Volumes/OpenRA/.VolumeIcon.icns"
+# Background image is created from source svg in artsrc repository
+mkdir "/Volumes/OpenRA/.background/"
+tiffutil -cathidpicheck "${ARTWORK_DIR}/macos-background.png" "${ARTWORK_DIR}/macos-background-2x.png" -out "/Volumes/OpenRA/.background/background.tiff"
 
-	echo '
-	   tell application "Finder"
-	     tell disk "'OpenRA'"
-	           open
-	           set current view of container window to icon view
-	           set toolbar visible of container window to false
-	           set statusbar visible of container window to false
-	           set the bounds of container window to {400, 100, 1040, 580}
-	           set theViewOptions to the icon view options of container window
-	           set arrangement of theViewOptions to not arranged
-	           set icon size of theViewOptions to 72
-	           set background picture of theViewOptions to file ".background:background.tiff"
-	           make new alias file at container window to POSIX file "/Applications" with properties {name:"Applications"}
-	           set position of item "'OpenRA - Tiberian Dawn.app'" of container window to {160, 106}
-	           set position of item "'OpenRA - Red Alert.app'" of container window to {320, 106}
-	           set position of item "'OpenRA - Dune 2000.app'" of container window to {480, 106}
-	           set position of item "Applications" of container window to {320, 298}
-	           set position of item ".background" of container window to {160, 298}
-	           set position of item ".fseventsd" of container window to {160, 298}
-	           set position of item ".VolumeIcon.icns" of container window to {160, 298}
-	           update without registering applications
-	           delay 5
-	           close
-	     end tell
-	   end tell
-	' | osascript
+cp "${BUILTDIR}/OpenRA - Red Alert.app/Contents/Resources/ra.icns" "/Volumes/OpenRA/.VolumeIcon.icns"
 
-	# HACK: Copy the volume icon again - something in the previous step seems to delete it...?
-	cp "${BUILTDIR}/OpenRA - Red Alert.app/Contents/Resources/ra.icns" "/Volumes/OpenRA/.VolumeIcon.icns"
-	SetFile -c icnC "/Volumes/OpenRA/.VolumeIcon.icns"
-	SetFile -a C "/Volumes/OpenRA"
+echo '
+   tell application "Finder"
+     tell disk "'OpenRA'"
+           open
+           set current view of container window to icon view
+           set toolbar visible of container window to false
+           set statusbar visible of container window to false
+           set the bounds of container window to {400, 100, 1040, 580}
+           set theViewOptions to the icon view options of container window
+           set arrangement of theViewOptions to not arranged
+           set icon size of theViewOptions to 72
+           set background picture of theViewOptions to file ".background:background.tiff"
+           make new alias file at container window to POSIX file "/Applications" with properties {name:"Applications"}
+           set position of item "'OpenRA - Tiberian Dawn.app'" of container window to {160, 106}
+           set position of item "'OpenRA - Red Alert.app'" of container window to {320, 106}
+           set position of item "'OpenRA - Dune 2000.app'" of container window to {480, 106}
+           set position of item "Applications" of container window to {320, 298}
+           set position of item ".background" of container window to {160, 298}
+           set position of item ".fseventsd" of container window to {160, 298}
+           set position of item ".VolumeIcon.icns" of container window to {160, 298}
+           update without registering applications
+           delay 5
+           close
+     end tell
+   end tell
+' | osascript
 
-	# Replace duplicate .NET runtime files with hard links to improve compression
-	if [ "${PLATFORM}" != "mono" ]; then
-		for MOD in "Red Alert" "Tiberian Dawn"; do
-			for f in "/Volumes/OpenRA/OpenRA - ${MOD}.app/Contents/MacOS"/*; do
-				g="/Volumes/OpenRA/OpenRA - Dune 2000.app/Contents/MacOS/"$(basename "${f}")
+# HACK: Copy the volume icon again - something in the previous step seems to delete it...?
+cp "${BUILTDIR}/OpenRA - Red Alert.app/Contents/Resources/ra.icns" "/Volumes/OpenRA/.VolumeIcon.icns"
+SetFile -c icnC "/Volumes/OpenRA/.VolumeIcon.icns"
+SetFile -a C "/Volumes/OpenRA"
+
+# Replace duplicate .NET runtime files with hard links to improve compression
+for MOD in "Red Alert" "Tiberian Dawn"; do
+	for p in "x86_64" "arm64" "mono"; do
+		for f in "/Volumes/OpenRA/OpenRA - ${MOD}.app/Contents/MacOS/${p}"/*; do
+			g="/Volumes/OpenRA/OpenRA - Dune 2000.app/Contents/MacOS/${p}/"$(basename "${f}")
+			hashf=$(shasum "${f}" | awk '{ print $1 }') || :
+			hashg=$(shasum "${g}" | awk '{ print $1 }') || :
+			if [ -n "${hashf}" ] && [ "${hashf}" = "${hashg}" ]; then
+				echo "Deduplicating ${f}"
+				rm "${f}"
+				ln "${g}" "${f}"
+			fi
+		done
+	done
+done
+
+for MOD in "Red Alert" "Tiberian Dawn" "Dune 2000"; do
+	for p in "arm64" "mono"; do
+		for f in "/Volumes/OpenRA/OpenRA - ${MOD}.app/Contents/MacOS/x86_64"/*; do
+			g="/Volumes/OpenRA/OpenRA - ${MOD}.app/Contents/MacOS/${p}/"$(basename "${f}")
+			if [ -e "${g}" ]; then
 				hashf=$(shasum "${f}" | awk '{ print $1 }') || :
 				hashg=$(shasum "${g}" | awk '{ print $1 }') || :
 				if [ -n "${hashf}" ] && [ "${hashf}" = "${hashg}" ]; then
@@ -195,101 +211,48 @@ build_platform() {
 					rm "${f}"
 					ln "${g}" "${f}"
 				fi
-			done
+			fi
 		done
-	fi
-
-	chmod -Rf go-w /Volumes/OpenRA
-	sync
-	sync
-
-	hdiutil detach "${DMG_DEVICE}"
-	rm -rf "${BUILTDIR}"
-}
-
-notarize_package() {
-	DMG_PATH="${1}"
-	NOTARIZE_DMG_PATH="${DMG_PATH%.*}"-notarization.dmg
-	echo "Submitting ${DMG_PATH} for notarization"
-
-	# Reset xcode search path to fix xcrun not finding altool
-	sudo xcode-select -r
-
-	# Create a temporary read-only dmg for submission (notarization service rejects read/write images)
-	hdiutil convert "${DMG_PATH}" -format ULFO -ov -o "${NOTARIZE_DMG_PATH}"
-
-	NOTARIZATION_UUID=$(xcrun altool --notarize-app --primary-bundle-id "net.openra.packaging" -u "${MACOS_DEVELOPER_USERNAME}" -p "${MACOS_DEVELOPER_PASSWORD}" --file "${NOTARIZE_DMG_PATH}" 2>&1 | awk -F' = ' '/RequestUUID/ { print $2; exit }')
-	if [ -z "${NOTARIZATION_UUID}" ]; then
-		echo "Submission failed"
-		exit 1
-	fi
-
-	echo "${DMG_PATH} submission UUID is ${NOTARIZATION_UUID}"
-	rm "${NOTARIZE_DMG_PATH}"
-
-	while :; do
-		sleep 30
-		NOTARIZATION_RESULT=$(xcrun altool --notarization-info "${NOTARIZATION_UUID}" -u "${MACOS_DEVELOPER_USERNAME}" -p "${MACOS_DEVELOPER_PASSWORD}" 2>&1 | awk -F': ' '/Status/ { print $2; exit }')
-		echo "${DMG_PATH}: ${NOTARIZATION_RESULT}"
-
-		if [ "${NOTARIZATION_RESULT}" == "invalid" ]; then
-			NOTARIZATION_LOG_URL=$(xcrun altool --notarization-info "${NOTARIZATION_UUID}" -u "${MACOS_DEVELOPER_USERNAME}" -p "${MACOS_DEVELOPER_PASSWORD}" 2>&1 | awk -F': ' '/LogFileURL/ { print $2; exit }')
-			echo "${NOTARIZATION_UUID} failed notarization with error:"
-			curl -s "${NOTARIZATION_LOG_URL}" -w "\n"
-			exit 1
-		fi
-
-		if [ "${NOTARIZATION_RESULT}" == "success" ]; then
-			echo "${DMG_PATH}: Stapling tickets"
-			DMG_DEVICE=$(hdiutil attach -readwrite -noverify -noautoopen "${DMG_PATH}" | egrep '^/dev/' | sed 1q | awk '{print $1}')
-			sleep 2
-
-			xcrun stapler staple "/Volumes/OpenRA/OpenRA - Red Alert.app"
-			xcrun stapler staple "/Volumes/OpenRA/OpenRA - Tiberian Dawn.app"
-			xcrun stapler staple "/Volumes/OpenRA/OpenRA - Dune 2000.app"
-
-			sync
-			sync
-
-			hdiutil detach "${DMG_DEVICE}"
-			break
-		fi
 	done
-}
+done
 
-finalize_package() {
-	PLATFORM="${1}"
-	INPUT_PATH="${2}"
-	OUTPUT_PATH="${3}"
+chmod -Rf go-w /Volumes/OpenRA
+sync
+sync
 
-	if [ "${PLATFORM}" = "mono" ]; then
-		hdiutil convert "${INPUT_PATH}" -format UDZO -imagekey zlib-level=9 -ov -o "${OUTPUT_PATH}"
-	else
-		# ULFO offers better compression and faster decompression speeds, but is only supported by 10.11+
-		hdiutil convert "${INPUT_PATH}" -format ULFO -ov -o "${OUTPUT_PATH}"
-	fi
-
-	rm "${INPUT_PATH}"
-}
-
-build_platform "standard" "build.dmg"
-build_platform "mono" "build-mono.dmg"
+hdiutil detach "${DMG_DEVICE}"
+rm -rf "${BUILTDIR}"
 
 if [ -n "${MACOS_DEVELOPER_CERTIFICATE_BASE64}" ] && [ -n "${MACOS_DEVELOPER_CERTIFICATE_PASSWORD}" ] && [ -n "${MACOS_DEVELOPER_IDENTITY}" ]; then
 	security delete-keychain build.keychain
 fi
 
-if [ -n "${MACOS_DEVELOPER_USERNAME}" ] && [ -n "${MACOS_DEVELOPER_PASSWORD}" ]; then
-	# Parallelize processing
-	(notarize_package "build.dmg") || exit 1 &
-	(notarize_package "build-mono.dmg") || exit 1 &
-	while wait -n; rc=$?; [ "${rc}" != 127 ]; do
-		if [ "${rc}" != 0 ]; then
-			wait
-			exit "${rc}"
-		fi
-	done
+if [ -n "${MACOS_DEVELOPER_USERNAME}" ] && [ -n "${MACOS_DEVELOPER_PASSWORD}" ] && [ -n "${MACOS_DEVELOPER_IDENTITY}" ]; then
+	echo "Submitting build for notarization"
+
+	# Reset xcode search path to fix xcrun not finding altool
+	sudo xcode-select -r
+
+	# Create a temporary read-only dmg for submission (notarization service rejects read/write images)
+	hdiutil convert "build.dmg" -format ULFO -ov -o "build-notarization.dmg"
+
+	xcrun notarytool submit "build-notarization.dmg" --wait --apple-id "${MACOS_DEVELOPER_USERNAME}" --password "${MACOS_DEVELOPER_PASSWORD}" --team-id "${MACOS_DEVELOPER_IDENTITY}"
+
+	rm "build-notarization.dmg"
+
+	echo "Stapling tickets"
+	DMG_DEVICE=$(hdiutil attach -readwrite -noverify -noautoopen "build.dmg" | egrep '^/dev/' | sed 1q | awk '{print $1}')
+	sleep 2
+
+	xcrun stapler staple "/Volumes/OpenRA/OpenRA - Red Alert.app"
+	xcrun stapler staple "/Volumes/OpenRA/OpenRA - Tiberian Dawn.app"
+	xcrun stapler staple "/Volumes/OpenRA/OpenRA - Dune 2000.app"
+
+	sync
+	sync
+
+	hdiutil detach "${DMG_DEVICE}"
 fi
 
-finalize_package "standard" "build.dmg" "${OUTPUTDIR}/OpenRA-${TAG}.dmg"
-finalize_package "mono" "build-mono.dmg" "${OUTPUTDIR}/OpenRA-${TAG}-mono.dmg"
+hdiutil convert "build.dmg" -format ULFO -ov -o "${OUTPUTDIR}/OpenRA-${TAG}.dmg"
+rm "build.dmg"

packaging/macos/checkmono.c

@@ -0,0 +1,73 @@
+/*
+ * Copyright 2007-2022 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. For more information,
+ * see COPYING.
+ */
+
+//
+// NOTE: Mono.framework only ships intel dylibs, so cannot be loaded by the arm64 slice of the Launcher utility.
+// Splitting checkmono into its own intel-only utility allows it to be called through rosetta if the user
+// wants to force the game to run under mono-through-rosetta.
+//
+// Based on https://github.com/mono/monodevelop/blob/main/main/build/MacOSX/monostub.mm and https://github.com/mono/monodevelop/blob/main/main/build/MacOSX/monostub-utils.h
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <dlfcn.h>
+
+#define SYSTEM_MONO_PATH "/Library/Frameworks/Mono.framework/Versions/Current/"
+#define SYSTEM_MONO_MIN_VERSION "6.4"
+
+typedef char *(* mono_get_runtime_build_info)(void);
+
+int main(int argc, char **argv)
+{
+	void *libmono = dlopen(SYSTEM_MONO_PATH "lib/libmonosgen-2.0.dylib", RTLD_LAZY);
+	if (libmono == NULL)
+	{
+		fprintf (stderr, "Failed to load libmonosgen-2.0.dylib: %s\n", dlerror());
+		return 1;
+	}
+
+	mono_get_runtime_build_info _mono_get_runtime_build_info = (mono_get_runtime_build_info)dlsym(libmono, "mono_get_runtime_build_info");
+	if (!_mono_get_runtime_build_info)
+	{
+		fprintf(stderr, "Could not load mono_get_runtime_build_info(): %s\n", dlerror());
+		return 1;
+	}
+
+	char *version = _mono_get_runtime_build_info();
+	char *req_end, *end;
+	long req_val, val;
+	char *req_version = SYSTEM_MONO_MIN_VERSION;
+
+	while (*req_version && *version)
+	{
+		req_val = strtol(req_version, &req_end, 10);
+		if (req_version == req_end || (*req_end && *req_end != '.'))
+		{
+			fprintf(stderr, "Bad version requirement string '%s'\n", req_end);
+			return 1;
+		}
+
+		val = strtol(version, &end, 10);
+		if (version == end || val < req_val)
+			return 1;
+
+		if (val > req_val)
+			return 0;
+
+		if (*req_end == '.' && *end != '.')
+			return 1;
+
+		req_version = req_end;
+		if (*req_version)
+			req_version++;
+
+		version = end + 1;
+	}
+
+	return 0;
+}

packaging/macos/launcher-mono.m

@@ -1,386 +0,0 @@
-/*
- * Copyright 2007-2022 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. For more information,
- * see COPYING.
- */
-
-#import <Cocoa/Cocoa.h>
-#include <dlfcn.h>
-
-#define SYSTEM_MONO_PATH @"/Library/Frameworks/Mono.framework/Versions/Current/"
-#define SYSTEM_MONO_MIN_VERSION @"6.4"
-
-typedef int (* mono_main)(int argc, char **argv);
-typedef void (* mono_free)(void *ptr);
-typedef char *(* mono_get_runtime_build_info)(void);
-
-@interface OpenRALauncher : NSObject <NSApplicationDelegate>
-- (void)launchGameWithArgs: (NSArray *)gameArgs;
-@end
-
-@implementation OpenRALauncher
-
-BOOL launched = NO;
-NSTask *gameTask;
-
-static int check_mono_version(const char *version, const char *req_version)
-{
-	char *req_end, *end;
-	long req_val, val;
-
-	while (*req_version)
-	{
-		req_val = strtol(req_version, &req_end, 10);
-		if (req_version == req_end || (*req_end && *req_end != '.'))
-		{
-			fprintf(stderr, "Bad version requirement string '%s'\n", req_end);
-			return FALSE;
-		}
-
-		req_version = req_end;
-		if (*req_version)
-			req_version++;
-
-		val = strtol (version, &end, 10);
-		if (version == end || val < req_val)
-			return FALSE;
-
-		if (val > req_val)
-			return TRUE;
-
-		if (*req_version == '.' && *end != '.')
-			return FALSE;
-
-		version = end + 1;
-	}
-
-	return TRUE;
-}
-
-- (int)hasValidMono
-{
-	void *libmono = dlopen([[SYSTEM_MONO_PATH stringByAppendingPathComponent: @"/lib/libmonosgen-2.0.dylib"] UTF8String], RTLD_LAZY);
-
-	if (libmono == NULL)
-	{
-		fprintf (stderr, "Failed to load libmonosgen-2.0.dylib: %s\n", dlerror());
-		return FALSE;
-	}
-
-	mono_get_runtime_build_info _mono_get_runtime_build_info = (mono_get_runtime_build_info)dlsym(libmono, "mono_get_runtime_build_info");
-	if (!_mono_get_runtime_build_info)
-	{
-		fprintf(stderr, "Could not load mono_get_runtime_build_info(): %s\n", dlerror());
-		return FALSE;
-	}
-
-	char *mono_version = _mono_get_runtime_build_info();
-	return check_mono_version(mono_version, [SYSTEM_MONO_MIN_VERSION UTF8String]);
-}
-
-- (NSString *)modName
-{
-	NSDictionary *plist = [[NSBundle mainBundle] infoDictionary];
-	if (plist)
-	{
-		NSString *title = [plist objectForKey:@"CFBundleDisplayName"];
-		if (title && [title length] > 0)
-			return title;
-	}
-
-	return @"OpenRA";
-}
-
-- (void)exitWithMonoPrompt
-{
-	[NSApp setActivationPolicy: NSApplicationActivationPolicyRegular];
-	[[NSApplication sharedApplication] activateIgnoringOtherApps:YES];
-
-	NSString *modName = [self modName];
-	NSString *title = [NSString stringWithFormat: @"Cannot launch %@", modName];
-	NSString *message = [NSString stringWithFormat: @"%@ requires Mono %@ or later. Please install Mono and try again.", modName, SYSTEM_MONO_MIN_VERSION];
-
-	NSAlert *alert = [[NSAlert alloc] init];
-	[alert setMessageText:title];
-	[alert setInformativeText:message];
-	[alert addButtonWithTitle:@"Download Mono"];
-	[alert addButtonWithTitle:@"Quit"];
-	NSInteger answer = [alert runModal];
-	[alert release];
-
-	if (answer == NSAlertFirstButtonReturn)
-		[[NSWorkspace sharedWorkspace] openURL: [NSURL URLWithString:@"https://www.mono-project.com/download/"]];
-
-	exit(1);
-}
-
-- (void)exitWithCrashPrompt
-{
-	[NSApp setActivationPolicy: NSApplicationActivationPolicyRegular];
-	[[NSApplication sharedApplication] activateIgnoringOtherApps:YES];
-
-	NSString *modName = [self modName];
-	NSString *message = [NSString stringWithFormat: @"%@ has encountered a fatal error and must close.\nPlease refer to the crash logs and FAQ for more information.", modName];
-
-	NSAlert *alert = [[NSAlert alloc] init];
-	[alert setMessageText:@"Fatal Error"];
-	[alert setInformativeText:message];
-	[alert addButtonWithTitle:@"View Logs"];
-	[alert addButtonWithTitle:@"View FAQ"];
-	[alert addButtonWithTitle:@"Quit"];
-
-	NSInteger answer = [alert runModal];
-	[alert release];
-
-	if (answer == NSAlertFirstButtonReturn)
-	{
-		NSString *logDir = [@"~/Library/Application Support/OpenRA/Logs/" stringByExpandingTildeInPath];
-		[[NSWorkspace sharedWorkspace] openFile: logDir withApplication:@"Finder"];
-	}
-	else if (answer == NSAlertSecondButtonReturn)
-	{
-		NSDictionary *plist = [[NSBundle mainBundle] infoDictionary];
-		if (plist)
-		{
-			NSString *faqUrl = [plist objectForKey:@"FaqUrl"];
-			if (faqUrl && [faqUrl length] > 0)
-				[[NSWorkspace sharedWorkspace] openURL: [NSURL URLWithString:faqUrl]];
-		}
-	}
-
-	exit(1);
-}
-
-// Application was launched via a URL handler
-- (void)getUrl:(NSAppleEventDescriptor *)event withReplyEvent:(NSAppleEventDescriptor *)replyEvent
-{
-	NSMutableArray *gameArgs = [[[NSProcessInfo processInfo] arguments] mutableCopy];
-	NSDictionary *plist = [[NSBundle mainBundle] infoDictionary];
-	NSString *url = [[event paramDescriptorForKeyword:keyDirectObject] stringValue];
-
-	if (plist)
-	{
-		NSString *joinServerUrl = [plist objectForKey:@"JoinServerUrlScheme"];
-		if (joinServerUrl && [joinServerUrl length] > 0)
-		{
-			NSString *prefix = [joinServerUrl stringByAppendingString: @"://"];
-			if ([url hasPrefix: prefix])
-			{
-				NSString *trimmed = [url substringFromIndex:[prefix length]];
-				NSArray *parts = [trimmed componentsSeparatedByString:@":"];
-				NSNumberFormatter *formatter = [[NSNumberFormatter alloc] init];
-
-				if ([parts count] == 2 && [formatter numberFromString: [parts objectAtIndex:1]] != nil)
-					[gameArgs addObject: [NSString stringWithFormat: @"Launch.Connect=%@", trimmed]];
-
-				[formatter release];
-			}
-		}
-	}
-
-	[self launchGameWithArgs: gameArgs];
-    [gameArgs release];
-}
-
-- (void)applicationWillFinishLaunching:(NSNotification *)aNotification
-{
-	// Register for url events
-	NSDictionary *plist = [[NSBundle mainBundle] infoDictionary];
-	if (plist)
-	{
-		NSString *joinServerUrl = [plist objectForKey:@"JoinServerUrlScheme"];
-		NSString *bundleIdentifier = [plist objectForKey:@"CFBundleIdentifier"];
-		if (joinServerUrl && [joinServerUrl length] > 0 && bundleIdentifier)
-		{
-			LSSetDefaultHandlerForURLScheme((CFStringRef)joinServerUrl, (CFStringRef)bundleIdentifier);
-			[[NSAppleEventManager sharedAppleEventManager] setEventHandler:self andSelector:@selector(getUrl:withReplyEvent:) forEventClass:kInternetEventClass andEventID:kAEGetURL];
-		}
-	}
-}
-
-- (void)applicationDidFinishLaunching:(NSNotification *)aNotification
-{
-	[self launchGameWithArgs: [[NSProcessInfo processInfo] arguments]];
-}
-
-- (BOOL)applicationShouldTerminateAfterLastWindowClosed: (NSApplication *)theApplication
-{
-	return YES;
-}
-
-- (void)launchGameWithArgs: (NSArray *)gameArgs
-{
-	if (launched)
-	{
-		NSLog(@"launchgame is already running... ignoring request.");
-		return;
-	}
-
-	launched = YES;
-
-	if (![self hasValidMono])
-		[self exitWithMonoPrompt];
-
-	// Default values - can be overriden by setting certain keys Info.plist
-	NSString *gameName = @"OpenRA.dll";
-	NSString *modId = nil;
-
-	NSDictionary *plist = [[NSBundle mainBundle] infoDictionary];
-	if (plist)
-	{
-		NSString *exeValue = [plist objectForKey:@"MonoGameExe"];
-		if (exeValue && [exeValue length] > 0)
-			gameName = exeValue;
-
-		NSString *modIdValue = [plist objectForKey:@"ModId"];
-		if (modIdValue && [modIdValue length] > 0)
-			modId = modIdValue;
-	}
-
-	NSString *exePath = [[[NSBundle mainBundle] bundlePath] stringByAppendingPathComponent: @"Contents/MacOS/"];
-	NSString *gamePath = [[[NSBundle mainBundle] bundlePath] stringByAppendingPathComponent: @"Contents/Resources/"];
-	NSString *appPath = [exePath stringByAppendingPathComponent: @"Launcher"];
-	NSString *engineLaunchPath = [self resolveTranslocatedPath: appPath];
-
-	NSMutableArray *launchArgs = [NSMutableArray arrayWithCapacity: [gameArgs count] + 2];
-	[launchArgs addObject: @"--debug"];
-	[launchArgs addObject: [exePath stringByAppendingPathComponent: gameName]];
-	[launchArgs addObject: [NSString stringWithFormat:@"Engine.LaunchPath=\"%@\"", engineLaunchPath]];
-	[launchArgs addObject: [NSString stringWithFormat:@"Engine.EngineDir=../Resources"]];
-
-	if (modId)
-		[launchArgs addObject: [NSString stringWithFormat:@"Game.Mod=%@", modId]];
-
-	[launchArgs addObjectsFromArray: gameArgs];
-
-	NSLog(@"Running launchgame with arguments:");
-	for (size_t i = 0; i < [launchArgs count]; i++)
-		NSLog(@"%@", [launchArgs objectAtIndex: i]);
-
-	gameTask = [[NSTask alloc] init];
-	[gameTask setCurrentDirectoryPath: gamePath];
-	[gameTask setLaunchPath: appPath];
-	[gameTask setArguments: launchArgs];
-
-	[[NSNotificationCenter defaultCenter]
-		addObserver: self
-		selector: @selector(taskExited:)
-		name: NSTaskDidTerminateNotification
-		object: gameTask
-	];
-
-	[gameTask launch];
-}
-
-- (NSString *)resolveTranslocatedPath: (NSString *)path
-{
-	// macOS 10.12 introduced the "App Translocation" feature, which runs quarantined applications
-	// from a transient read-only disk image.  The read-only image isn't a problem, but the transient
-	// path breaks the mod registration/switching feature.
-	// This resolves the original path which can then be written into the mod metadata for future
-	// launches (which will then be re-translocated)
-
-	// Running on macOS < 10.12
-	if (floor(NSAppKitVersionNumber) <= 1404)
-		return path;
-
-	void *handle = dlopen("/System/Library/Frameworks/Security.framework/Security", RTLD_LAZY);
-
-	// Failed to load security framework
-	if (handle == NULL)
-		return path;
-
-	Boolean (*mySecTranslocateIsTranslocatedURL)(CFURLRef path, bool *isTranslocated, CFErrorRef * __nullable error);
-	mySecTranslocateIsTranslocatedURL = dlsym(handle, "SecTranslocateIsTranslocatedURL");
-
-	CFURLRef __nullable (*mySecTranslocateCreateOriginalPathForURL)(CFURLRef translocatedPath, CFErrorRef * __nullable error);
-	mySecTranslocateCreateOriginalPathForURL = dlsym(handle, "SecTranslocateCreateOriginalPathForURL");
-
-	// Failed to resolve required functions
-	if (mySecTranslocateIsTranslocatedURL == NULL || mySecTranslocateCreateOriginalPathForURL == NULL)
-		return path;
-
-	bool isTranslocated = false;
-	CFURLRef pathURLRef = CFURLCreateWithFileSystemPath(kCFAllocatorDefault, (__bridge CFStringRef)path, kCFURLPOSIXPathStyle, false);
-
-	if (mySecTranslocateIsTranslocatedURL(pathURLRef, &isTranslocated, NULL))
-	{
-		if (isTranslocated)
-		{
-			CFURLRef resolvedURL = mySecTranslocateCreateOriginalPathForURL(pathURLRef, NULL);
-			path = [(NSURL *)(resolvedURL) path];
-		}
-	}
-
-	CFRelease(pathURLRef);
-	return path;
-}
-
-- (void)taskExited:(NSNotification *)note
-{
-	[[NSNotificationCenter defaultCenter]
-		removeObserver:self
-		name:NSTaskDidTerminateNotification
-		object:gameTask
-	];
-
-	int ret = [gameTask terminationStatus];
-	NSLog(@"launchgame exited with code %d", ret);
-	[gameTask release];
-	gameTask = nil;
-
-	// We're done here
-	if (ret != 0)
-		[self exitWithCrashPrompt];
-
-	exit(0);
-}
-
-@end
-
-int main(int argc, char **argv)
-{
-	NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
-
-	if (argc > 1)
-	{
-		struct rlimit limit;
-		if (getrlimit (RLIMIT_NOFILE, &limit) == 0 && limit.rlim_cur < 1024)
-		{
-			limit.rlim_cur = MIN(limit.rlim_max, 1024);
-			setrlimit(RLIMIT_NOFILE, &limit);
-		}
-
-		void *libmono = dlopen([[SYSTEM_MONO_PATH stringByAppendingPathComponent: @"/lib/libmonosgen-2.0.dylib"] UTF8String], RTLD_LAZY);
-		if (libmono == NULL)
-		{
-			fprintf (stderr, "Failed to load libmonosgen-2.0.dylib: %s\n", dlerror());
-			return EXIT_FAILURE;
-		}
-
-		mono_main _mono_main = (mono_main)dlsym(libmono, "mono_main");
-		if (!_mono_main)
-		{
-			fprintf(stderr, "Could not load mono_main(): %s\n", dlerror());
-			return EXIT_FAILURE;
-		}
-
-		[pool drain];
-
-		return _mono_main(argc, argv);
-	}
-
-	NSApplication *application = [NSApplication sharedApplication];
-	OpenRALauncher *launcher = [[OpenRALauncher alloc] init];
-	[NSApp setActivationPolicy: NSApplicationActivationPolicyProhibited];
-
-	[application setDelegate:launcher];
-	[application run];
-
-	[launcher release];
-	[pool drain];
-
-	return EXIT_SUCCESS;
-}

packaging/macos/launcher.m

@@ -8,6 +8,13 @@
 
 #import <Cocoa/Cocoa.h>
 #include <dlfcn.h>
+#include <sys/types.h>
+#include <sys/sysctl.h>
+#include <mach/machine.h>
+
+#define SYSTEM_MONO_PATH @"/Library/Frameworks/Mono.framework/Versions/Current/"
+#define SYSTEM_MONO_MIN_VERSION @"6.4"
+#define DOTNET_MIN_MACOS_VERSION 10.15
 
 @interface OpenRALauncher : NSObject <NSApplicationDelegate>
 - (void)launchGameWithArgs: (NSArray *)gameArgs;
@@ -31,8 +38,34 @@ NSTask *gameTask;
 	return @"OpenRA";
 }
 
-- (void)showCrashPrompt
+- (void)exitWithMonoPrompt
 {
+	[NSApp setActivationPolicy: NSApplicationActivationPolicyRegular];
+	[[NSApplication sharedApplication] activateIgnoringOtherApps:YES];
+
+	NSString *modName = [self modName];
+	NSString *title = [NSString stringWithFormat: @"Cannot launch %@", modName];
+	NSString *message = [NSString stringWithFormat: @"%@ requires Mono %@ or later. Please install Mono and try again.", modName, SYSTEM_MONO_MIN_VERSION];
+
+	NSAlert *alert = [[NSAlert alloc] init];
+	[alert setMessageText:title];
+	[alert setInformativeText:message];
+	[alert addButtonWithTitle:@"Download Mono"];
+	[alert addButtonWithTitle:@"Quit"];
+	NSInteger answer = [alert runModal];
+	[alert release];
+
+	if (answer == NSAlertFirstButtonReturn)
+		[[NSWorkspace sharedWorkspace] openURL: [NSURL URLWithString:@"https://www.mono-project.com/download/"]];
+
+	exit(1);
+}
+
+- (void)exitWithCrashPrompt
+{
+	[NSApp setActivationPolicy: NSApplicationActivationPolicyRegular];
+	[[NSApplication sharedApplication] activateIgnoringOtherApps:YES];
+
 	NSString *modName = [self modName];
 	NSString *message = [NSString stringWithFormat: @"%@ has encountered a fatal error and must close.\nPlease refer to the crash logs and FAQ for more information.", modName];
 
@@ -61,6 +94,8 @@ NSTask *gameTask;
 				[[NSWorkspace sharedWorkspace] openURL: [NSURL URLWithString:faqUrl]];
 		}
 	}
+
+	exit(1);
 }
 
 // Application was launched via a URL handler
@@ -120,6 +155,16 @@ NSTask *gameTask;
 	return YES;
 }
 
+- (int)hasValidMono
+{
+	NSTask *task = [[NSTask alloc] init];
+	[task setLaunchPath: [[[NSBundle mainBundle] bundlePath] stringByAppendingPathComponent: @"Contents/MacOS/checkmono"]];
+	[task launch];
+	[task waitUntilExit];
+
+	return [task terminationStatus] == 0;
+}
+
 - (void)launchGameWithArgs: (NSArray *)gameArgs
 {
 	if (launched)
@@ -130,6 +175,16 @@ NSTask *gameTask;
 
 	launched = YES;
 
+	BOOL useMono = NO;
+
+	if (@available(macOS 10.15, *))
+		useMono = [[[NSProcessInfo processInfo] environment]objectForKey:@"OPENRA_PREFER_MONO"] != nil;
+	else
+		useMono = YES;
+
+	if (useMono && ![self hasValidMono])
+		[self exitWithMonoPrompt];
+
 	// Default values - can be overriden by setting certain keys Info.plist
 	NSString *modId = nil;
 
@@ -144,13 +199,44 @@ NSTask *gameTask;
 	NSString *exePath = [[[NSBundle mainBundle] bundlePath] stringByAppendingPathComponent: @"Contents/MacOS/"];
 	NSString *gamePath = [[[NSBundle mainBundle] bundlePath] stringByAppendingPathComponent: @"Contents/Resources/"];
 
-	NSString *launchPath = [exePath stringByAppendingPathComponent: @"OpenRA"];
+	NSString *launchPath;
+	NSString *dllPath;
+	NSString *hostPath;
+
+	if (useMono)
+	{
+		launchPath = [exePath stringByAppendingPathComponent: @"apphost-mono"];
+		hostPath = [SYSTEM_MONO_PATH stringByAppendingPathComponent: @"lib/libmonosgen-2.0.dylib"];;
+		dllPath = [exePath stringByAppendingPathComponent: @"mono/OpenRA.dll"];
+	}
+	else
+	{
+		size_t size;
+		cpu_type_t type;
+		size = sizeof(type);
+
+		if (sysctlbyname("hw.cputype", &type, &size, NULL, 0) == 0 && (type & 0xFF) == CPU_TYPE_ARM)
+		{
+			launchPath = [exePath stringByAppendingPathComponent: @"apphost-arm64"];
+			hostPath = [exePath stringByAppendingPathComponent: @"arm64/libhostfxr.dylib"];;
+			dllPath = [exePath stringByAppendingPathComponent: @"arm64/OpenRA.dll"];
+		}
+		else
+		{
+			launchPath = [exePath stringByAppendingPathComponent: @"apphost-x86_64"];
+			hostPath = [exePath stringByAppendingPathComponent: @"x86_64/libhostfxr.dylib"];;
+			dllPath = [exePath stringByAppendingPathComponent: @"x86_64/OpenRA.dll"];
+		}
+	}
+
 	NSString *appPath = [exePath stringByAppendingPathComponent: @"Launcher"];
 	NSString *engineLaunchPath = [self resolveTranslocatedPath: appPath];
 
-	NSMutableArray *launchArgs = [NSMutableArray arrayWithCapacity: [gameArgs count] + 2];
+	NSMutableArray *launchArgs = [NSMutableArray arrayWithCapacity: [gameArgs count] + 5];
+	[launchArgs addObject: hostPath];
+	[launchArgs addObject: dllPath];
 	[launchArgs addObject: [NSString stringWithFormat:@"Engine.LaunchPath=\"%@\"", engineLaunchPath]];
-	[launchArgs addObject: [NSString stringWithFormat:@"Engine.EngineDir=../Resources"]];
+	[launchArgs addObject: [NSString stringWithFormat:@"Engine.EngineDir=../../Resources"]];
 
 	if (modId)
 		[launchArgs addObject: [NSString stringWithFormat:@"Game.Mod=%@", modId]];
@@ -229,21 +315,15 @@ NSTask *gameTask;
 	];
 
 	int ret = [gameTask terminationStatus];
-
 	NSLog(@"launchgame exited with code %d", ret);
 	[gameTask release];
 	gameTask = nil;
 
 	// We're done here
-	if (ret == 0)
-		exit(0);
+	if (ret != 0)
+		[self exitWithCrashPrompt];
 
-	// Make the error dialog visible
-	[NSApp setActivationPolicy: NSApplicationActivationPolicyRegular];
-	[[NSApplication sharedApplication] activateIgnoringOtherApps:YES];
-	[self showCrashPrompt];
-
-	exit(1);
+	exit(0);
 }
 
 @end