*
* @return 0 if the level is still active, -1 if the level has been lost and
* 1 if the level has been won.
*/
private int detectCollisions() {
Bounds boundsLevel;
final BoundingBox bounds = (BoundingBox) _character.getBounds();
final BoundingBox prevBounds = (BoundingBox) _character.getPrevBounds();
// Get the character's corners