Add iOS platform (refactor Mac into shared Apple platform impl)

Source/Engine/Main/Default/main.cpp

@@ -1,6 +1,6 @@
 // Copyright (c) 2012-2023 Wojciech Figat. All rights reserved.
 
-#if PLATFORM_LINUX
+#if PLATFORM_LINUX || PLATFORM_MAC || PLATFORM_IOS
 
 #include "Engine/Engine/Engine.h"
 #include "Engine/Core/Types/StringBuilder.h"

Source/Engine/Main/Mac/main.cpp

@@ -1,24 +0,0 @@
-// Copyright (c) 2012-2023 Wojciech Figat. All rights reserved.
-
-#if PLATFORM_MAC
-
-#include "Engine/Engine/Engine.h"
-#include "Engine/Core/Types/StringBuilder.h"
-
-int main(int argc, char* argv[])
-{
-    // Join the arguments
-    StringBuilder args;
-    for (int i = 1; i < argc; i++)
-    {
-        args.Append(argv[i]);
-
-        if (i + 1 != argc)
-            args.Append(TEXT(' '));
-    }
-    args.Append(TEXT('\0'));
-
-    return Engine::Main(*args);
-}
-
-#endif

Source/Engine/Main/Main.Build.cs

@@ -50,9 +50,6 @@ public class Main : EngineModule
             options.CompileEnv.WinRTComponentExtensions = true;
             options.CompileEnv.GenerateDocumentation = true;
 
-            break;
-        case TargetPlatform.Linux:
-            options.SourcePaths.Add(Path.Combine(FolderPath, "Linux"));
             break;
         case TargetPlatform.PS4:
             options.SourcePaths.Add(Path.Combine(Globals.EngineRoot, "Source", "Platforms", "PS4", "Engine", "Main"));
@@ -72,8 +69,10 @@ public class Main : EngineModule
         case TargetPlatform.Switch:
             options.SourcePaths.Add(Path.Combine(Globals.EngineRoot, "Source", "Platforms", "Switch", "Engine", "Main"));
             break;
+        case TargetPlatform.Linux:
         case TargetPlatform.Mac:
-            options.SourcePaths.Add(Path.Combine(FolderPath, "Mac"));
+        case TargetPlatform.iOS:
+            options.SourcePaths.Add(Path.Combine(FolderPath, "Default"));
             break;
         default: throw new InvalidPlatformException(options.Platform.Target);
         }