//to destroy game objects that are hit
public static void Dettach(GameObject pGameObject)
{
GONodeMan pGOMan = GONodeMan.PrivGetInstance();
Debug.Assert(pGOMan != null);
//Remeber: a doublly linked list of trees
//whatever game object we get, we have to travel up its tree
// to its its tree's root/ upper most parent
Debug.Assert(pGameObject != null);
GameObject pTemp = pGameObject;
GameObject pRoot = null;
while (pTemp != null)
{
pRoot = pTemp;
pTemp = (GameObject)Iterator.GetParent(pTemp);
//keep traveling up the tree
//exit out at the top of the tree
}
//Found the tree our game object is in
// now go traverse the DLink list to that tree
GONode pTree = (GONode)pGOMan.BaseGetActive();
while (pTree != null)
{
//check if the game objects match
if (pTree.poGameObject == pRoot)
{
break;
}
pTree = (GONode)pTree.pNext;
}
//Now we are in the tree with the Game Object
//we need to remove
Debug.Assert(pTree != null);
Debug.Assert(pTree.poGameObject != null);
GameObject pParent = (GameObject)Iterator.GetParent(pGameObject);
Debug.Assert(pParent != null);
GameObject pChild = (GameObject)Iterator.GetChild(pGameObject);
Debug.Assert(pChild == null);
//finally
//Remove Gamobject from its parent composite
pParent.Remove(pGameObject);
}
public static void Update()
{
// go through active list and update everything in it
// while loop
GONodeMan pMan = GONodeMan.PrivGetInstance();
Debug.Assert(pMan != null);
//Debug.WriteLine("---------------");
GONode pGONode = (GONode)pMan.BaseGetActive();
while (pGONode != null)
{
//Debug.WriteLine("update: GameObjectTree {0} ({1})", pGONode.poGameObject, pGONode.poGameObject.GetHashCode());
//Debug.WriteLine(" +++++");
if (pGONode.poGameObject.GetPlayerOption() == true)
{
ReverseIterator pRev = new ReverseIterator(pGONode.poGameObject);
//need to update the children 1st then work our way back up the tree
// So depth first(ReverseIterator)
// maintaines integrity of the bounding collision rectangles
Component pNode = pRev.First();
while (!pRev.IsDone())
{
GameObject pGameObj = (GameObject)pNode;
//Debug.WriteLine("update: {0} ({1})", pGameObj, pGameObj.GetHashCode());
pGameObj.Update();
pNode = pRev.Next();
}
//Debug.WriteLine(" ------");
pGONode = (GONode)pGONode.pNext;
}
}
}