void FPawnActionStack::PopAction(UPawnAction& ActionToPop)
{
// first check if it's there
UPawnAction* CutPoint = TopAction;
while (CutPoint != NULL && CutPoint != &ActionToPop)
{
CutPoint = CutPoint->ParentAction;
}
if (CutPoint == &ActionToPop)
{
UPawnAction* ActionBeingRemoved = TopAction;
// note StopAction can be null
UPawnAction* StopAction = ActionToPop.ParentAction;
while (ActionBeingRemoved != StopAction)
{
UPawnAction* NextAction = ActionBeingRemoved->ParentAction;
if (ActionBeingRemoved->IsBeingAborted() == false && ActionBeingRemoved->IsFinished() == false)
{
// forcing abort to make sure it happens instantly. We don't have time for delayed finish here.
ActionBeingRemoved->Abort(EAIForceParam::Force);
}
ActionBeingRemoved->OnPopped();
if (ActionBeingRemoved->ParentAction)
{
ActionBeingRemoved->ParentAction->OnChildFinished(*ActionBeingRemoved, ActionBeingRemoved->FinishResult);
}
ActionBeingRemoved = NextAction;
}
TopAction = StopAction;
}
}
EPawnActionAbortState::Type UPawnActionsComponent::AbortAction(UPawnAction& ActionToAbort)
{
const EPawnActionAbortState::Type AbortState = ActionToAbort.Abort(EAIForceParam::DoNotForce);
if (AbortState == EPawnActionAbortState::NeverStarted)
{
// this is a special case. It's possible someone tried to abort an action that
// has just requested to be pushes and the push event has not been processed yet.
// in such a case we'll look through the awaiting action events and remove a push event
// for given ActionToAbort
RemoveEventsForAction(ActionToAbort);
}
return AbortState;
}
void UPawnActionsComponent::OnUnregister()
{
if ((ControlledPawn != nullptr) && !ControlledPawn->IsPendingKillPending())
{
// call for every regular priority
for (int32 PriorityIndex = 0; PriorityIndex < EAIRequestPriority::MAX; ++PriorityIndex)
{
UPawnAction* Action = ActionStacks[PriorityIndex].GetTop();
while (Action)
{
Action->Abort(EAIForceParam::Force);
Action = Action->ParentAction;
}
}
}
Super::OnUnregister();
}
EPawnActionAbortState::Type UPawnActionsComponent::ForceAbortAction(UPawnAction& ActionToAbort)
{
return ActionToAbort.Abort(EAIForceParam::Force);
}
