public void tick(){
		abspx_xPos += xDirection;
		abspx_yPos += yDirection;
		
		
		if (abspx_xPos < 0){
			abspx_xPos = Game.currentMap().px_xSize() - 1;
		}
		if (abspx_xPos >= Game.currentMap().px_xSize()){
			abspx_xPos = 0;
		}
		
		if (abspx_yPos < 0){
			abspx_yPos = Game.currentMap().px_ySize() - 1;
		}
		if (abspx_yPos >= Game.currentMap().px_ySize()){
			abspx_yPos = 0;
		}
		
	}