Skip unwrapping for performance

Author: STREGA

Sources/GateEngine/Game.swift

@@ -182,6 +182,9 @@ public final class Game {
 
 extension Game {
     @MainActor
-    @usableFromInline
-    static var shared: Game! = nil
+    internal static var _shared: Game! = nil
+    @MainActor
+    public static var shared: Game {
+        return _shared.unsafelyUnwrapped
+    }
 }

Sources/GateEngine/GameDelegate.swift

@@ -159,7 +159,7 @@ extension GameDelegate {
     @MainActor public static func main() {
         let delegate = Self()
         let platform = CurrentPlatform(delegate: delegate)
-        Game.shared = Game(delegate: delegate, currentPlatform: platform)
+        Game._shared = Game(delegate: delegate, currentPlatform: platform)
         Game.shared.platform.main()
     }
 }