title: libgdx how to detect collisions?
body: <p>I have a Problem to detect collisions. I'm using TiledMap and created a virtual joystick, so that its possible to move in every direction not just left, right, top, bottom. The Point of View is directly 90 degrees from the top. </p>
  
  <p>I don't know if that's the purpose of a TiledMap, but I thought the maps are easy to create. But now I 've got Problems with the collision detection. Since the map is not arranged like a chessboard, for example, I need to check the whole Sprite for collision. Can you please explain me to how that works? </p>
  
  <p>Thank You</p>