basic gravity change implemented, wont finish it since I do belive I will want to flip gravity later on by flipping the whole map with an animation. This way the player will also affected by the gravity change as the hero would be. This would make the impact of the gravity change larger and more fun I think. To do this I tried rotating things but that seems not to work well. Once the tilesystem from XML is in place each level can have an upside-down version that can be loaded once gravity is changed?