Added multi-touch, added on press down

src/Game.h

@@ -13,6 +13,7 @@
 #include <vector>
 #include <string>
 #include <memory>
+#include <cstdint>
 #include <render/TextRenderer.h>
 #include "MenuManager.h"
 #include "Space.h"
@@ -50,9 +51,9 @@ namespace ZL {
 		void drawUI();
 		void drawUnderMainMenu();
 		void drawLoading();
-		void handleDown(int mx, int my);
-		void handleUp(int mx, int my);
-		void handleMotion(int mx, int my);
+		void handleDown(int64_t fingerId, int mx, int my);
+		void handleUp(int64_t fingerId, int mx, int my);
+		void handleMotion(int64_t fingerId, int mx, int my);
 
 #ifdef EMSCRIPTEN
 		static Game* s_instance;