/// <summary>
/// bezpecne odstrani objekt (SceneObject i gui objekt) v dalsim updatu
/// </summary>
public void RemoveFromSceneDelayed(ISceneObject obj)
{
if (obj is ParticleEmmitor)
{
obj.Dead = true;
obj.OnRemove();
GetParticleArea().RemoveEmmitor(obj as ParticleEmmitor);
}
else
{
obj.Dead = true;
obj.OnRemove();
objectsToRemove.Add(obj);
}
}