I am using Newtons physics in my games. The problem lies when trying to save a game. I am able to go through all the entities and reset their positions and active states when saving and reloading games, however I can only do this on entites that are created in Wed. If an entity is set up to be destructible, Newton will remove it from its engine and spawn new entites. This is where my problem lies. If on saving a game new entites have been spawned and the parent entity was removed, how do I capture this when saving the game and restore it later when reloading it.