public static void Attach(Observer pObserver)
{
// protection
Debug.Assert(pObserver != null);
DelayedObjectManager pDelayMan = DelayedObjectManager.privGetInstance();
DLink.AddToFront(ref pDelayMan.pHead, pObserver);
}
public static void PurgeAll()
{
DelayedObjectManager pDelayMan = DelayedObjectManager.privGetInstance();
// remove all from list
while (pDelayMan.pHead != null)
{
DLink.RemoveFront(ref pDelayMan.pHead);
}
}
static public void Process()
{
DelayedObjectManager pDelayMan = DelayedObjectManager.privGetInstance();
Observer pObserver = (Observer)pDelayMan.pHead;
while (pObserver != null)
{
// Fire off remove method
pObserver.Execute();
pObserver = (Observer)pObserver.GetNext();
}
// remove all from list
while (pDelayMan.pHead != null)
{
DLink.RemoveFront(ref pDelayMan.pHead);
}
}
static public void Attach(ColObserver observer)
{
// protection
Debug.Assert(observer != null);
DelayedObjectManager pDelayMan = DelayedObjectManager.privGetInstance();
// add to front
if (pDelayMan.pHeadColObserver == null)
{
pDelayMan.pHeadColObserver = observer;
observer.pMNext = null;
observer.pMPrev = null;
}
else
{
observer.pMNext = pDelayMan.pHeadColObserver;
observer.pMPrev = null;
pDelayMan.pHeadColObserver.pMPrev = observer;
pDelayMan.pHeadColObserver = observer;
}
}
//process any observers in the update loop of main game
static public void Process()
{
//get the manager instance
DelayedObjectManager pDelayMan = DelayedObjectManager.privGetInstance();
//First - Fire off all the observers currently on the list
//get the head observer
ColObserver pNode = pDelayMan.pHeadColObserver;
//iterate through the observer list
while (pNode != null)
{
// Fire off listener
pNode.Execute();
//get the next observer
pNode = (ColObserver)pNode.pMNext;
}
//done executing all observers - now remove them
pNode = pDelayMan.pHeadColObserver;
ColObserver pTmp = null;
//iterate through the observer list
while (pNode != null)
{
//hold current observer in pTmp for reference after removal
pTmp = pNode;
pNode = (ColObserver)pNode.pMNext;
// remove observer
pDelayMan.privDetach(pTmp, ref pDelayMan.pHeadColObserver);
}
}
