private static void AddToActiveListInSortedOrder(TimerManager pInstance, TimeEvent pNewNode)
{
TimeEvent pListPointer = (TimeEvent)pInstance.BaseGetActive();
if ((pListPointer == null) || (pNewNode.GetTriggerTime() <= pListPointer.GetTriggerTime()))
{
// If list is empty, or if pNode.triggerTime <= head.triggerTime
// make the node as head
pInstance.BaseSetActiveHead(pNewNode);
}
else
{
while (pListPointer != null)
{
// If next TimeEvent has a greater triggerTime than new node, insert into list
if (pListPointer.GetTriggerTime() >= pNewNode.GetTriggerTime())
{
AddToListBeforeNode(pNewNode, pListPointer);
// Break loop
break;
}
else if (pListPointer.GetNext() == null)
{
AddToListAfterNode(pNewNode, pListPointer);
break;
}
pListPointer = (TimeEvent)pListPointer.GetNext();
}
}
}
private static void AddToListAfterNode(TimeEvent pNewNode, TimeEvent pPrevNode)
{
// Set new node pointers
pNewNode.SetNext(pPrevNode.GetNext());
pNewNode.SetPrev(pPrevNode);
// Set next node pointer
if (pPrevNode.GetNext() != null)
{
pPrevNode.GetNext().SetPrev(pNewNode);
}
// Set previous node pointer
pPrevNode.SetNext(pNewNode);
}
public static void Update(float totalTime)
{
// Get the instance
TimerManager pInstance = TimerManager.PrivGetInstance();
Debug.Assert(pInstance != null);
// "Latch" the current time
pInstance.currTime = totalTime;
TimeEvent pEvent = (TimeEvent)pInstance.BaseGetActive();
TimeEvent pNextEvent = null;
// Walk the list to end OR currTime is greater than timeEvent
while (pEvent != null && (pInstance.currTime >= pEvent.GetTriggerTime()))
{
pNextEvent = (TimeEvent)pEvent.GetNext();
if (pInstance.currTime >= pEvent.GetTriggerTime())
{
// Process event
pEvent.Process();
// Remove from list
pInstance.BaseRemove(pEvent);
}
// Advance the pointer
pEvent = pNextEvent;
}
}
public static void Update(float totalTime)
{
// Get the instance
TimerManager pMan = TimerManager.PrivGetInstance();
Debug.Assert(pMan != null);
// squirrel away
pMan.mCurrTime = totalTime;
// walk the list
TimeEvent pEvent = (TimeEvent)pMan.BaseGetActive();
TimeEvent pNextEvent = null;
// Walk the list until there is no more list OR currTime is greater than timeEvent
// List needs to be sorted by trigger time
while (pEvent != null && (pMan.mCurrTime >= pEvent.triggerTime))
{
// Difficult to walk a list and remove itself from the list
// so squirrel away the next event now, use it at bottom of while
pNextEvent = (TimeEvent)pEvent.GetNext();
if (pMan.mCurrTime >= pEvent.triggerTime)
{
// call it
pEvent.Process();
// remove from list
pMan.BaseRemove(pEvent);
}
// advance the pointer
pEvent = pNextEvent;
}
}
public static void PullFromMemento(TimerMemento pMemento, float currTime)
{
float elapsedTime = currTime - pMemento.mCurrTime;
Debug.Assert(elapsedTime >= 0);
TimerManager pMan = TimerManager.PrivGetInstance();
Debug.Assert(pMan != null);
pMan.BasePullFromMemento(pMemento);
// update all of the times on the event chain
TimeEvent pNode = (TimeEvent)pMan.BaseGetActive();
while (pNode != null)
{
pNode.triggerTime += elapsedTime;
pNode = (TimeEvent)pNode.GetNext();
}
}