refactor touchHandler + repensé dekc + renpensé carte + suprimé code inutile + ajouter d'event carte

app/src/main/java/com/iutlaval/myapplication/GameActivity.java

@@ -42,6 +42,21 @@ public class GameActivity extends Activity {
         GameActivity.gameEngine = gameEngine;
     }
 
+    @Override
+    protected void onDestroy() {
+        super.onDestroy();
+        //kill les threads
+        System.exit(0);
+    }
+
+    @Override
+    protected void onStop() {
+        super.onStop();
+        if (renderer != null) renderer.terminate();
+        gameEngine = null;
+        renderer = null;
+    }
+
     @Override
     public boolean onTouchEvent(MotionEvent event) {
         if(gameEngine != null)gameEngine.onTouchEvent(event);