void Rotate()
{
angle = 0;
targetAngle = targetAngle % 360;
targetAngle = angle + (new Random()).Next(1, 1) * 90;
substate = GameSubstate.Rotating;
uiPlayer.StartRotate();
uiAIPlayer.StartRotate();
uiFood.StartRotate();
currentMazeDirection = (MoveDirection)(((int)currentMazeDirection + 1) % (int)MoveDirection.NIL);
}