@@ -30,9 +30,9 @@
 		}
 		Application.run(this);
 	}
 
-	override void on_game_changed(char c, const(Game) g, bool finished)
+	override void on_game_changed(char c, in Game g, bool finished)
 	{
 		draw(g);
 	}
 
@@ -80,9 +80,9 @@
 			graphicContext.copyTo(ev.graphics, Rect(0,0,this.clientSize.width,this.clientSize.height));
 		};
 	}
 
-	void draw(const(Game) g)
+	void draw(in Game g)
 	{
 		int scrW = this.clientSize.width;
 		int scrH = this.clientSize.height;