private void HandleCastleMovement()
{
for (int i = 0; i < castleList.Count; i++)
{
Castle castle = castleList[i];
bool isToTheRightOfDragon = castle.GetXposition() > DragonPosition;
castle.Move();
if (isToTheRightOfDragon && castle.GetXposition() <= DragonPosition && castle.IsBottom())
{
castlePassedCount++;
}
if (castle.GetXposition() < destroyPosition)
{
castle.DestroySelf();
castleList.Remove(castle);
i--;
}
}
}