public void Remove(object obj)
{
if (obj is PlayerStart)
{
playerStart.Destroy();
}
if (obj is GameObject)
{
gameObjects.Remove(obj as GameObject);
}
if (obj is ILevelAsset)
{
levelAssets.Remove(obj as ILevelAsset);
}
if (obj is IExit)
{
levelExits.Remove(obj as IExit);
}
if (obj is IUpdate)
{
updateables.Remove(obj as IUpdate);
}
}