public void moveBack(Character character){
		if(character.getDy() < 0){
			character.setY(character.getY()+1);
		}
		if(character.getDx() < 0){
			character.setX(character.getX()+1);
		}
		if(character.getDx() > 0){
			character.setX(character.getX()-1);
		}
		if(character.getDy() > 0){
			character.setY(character.getY()-1);
		}
	}