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2b93815d0a
- Added support for shared event buffer, so that multiple instance data can use the same - Added API to consume events - Removed double buffering from events - Treat TriggerTransitions() as event handler (events flushed after each call to the method) - Event handlers (including tasks) are executed in priority order - Transitions and event capturing states can consume events on successful selection - Added API to tick a StateTree in two passes (update tasks and trigger transitions) - Change parallel tree tasks to do the task update in Tick(), and event handling in TriggerTransitions() - Small improvements to the ST debugger to display events - NOTE: this is breaking change for implementations that has relied events emitted during tick to be available on next EnterState() #okfirgithub public #rb Yoan.StAmant [CL 32924765 by mikko mononen in ue5-main branch]
41 lines
1.3 KiB
C++
41 lines
1.3 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#include "StateTreeEvents.h"
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#include "StateTreeTypes.h"
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#include "VisualLogger/VisualLogger.h"
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#include UE_INLINE_GENERATED_CPP_BY_NAME(StateTreeEvents)
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//----------------------------------------------------------------//
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// FStateTreeSharedEvent
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//----------------------------------------------------------------//
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void FStateTreeSharedEvent::AddStructReferencedObjects(FReferenceCollector& Collector)
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{
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Collector.AddPropertyReferencesWithStructARO(FStateTreeEvent::StaticStruct(), Event.Get());
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}
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//----------------------------------------------------------------//
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// FStateTreeEventQueue
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//----------------------------------------------------------------//
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void FStateTreeEventQueue::SendEvent(const UObject* Owner, const FGameplayTag& Tag, const FConstStructView Payload, const FName Origin)
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{
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if (SharedEvents.Num() >= MaxActiveEvents)
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{
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UE_VLOG_UELOG(Owner, LogStateTree, Error, TEXT("%s: Too many events send on '%s'. Dropping event %s"), ANSI_TO_TCHAR(__FUNCTION__), *GetNameSafe(Owner), *Tag.ToString());
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return;
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}
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SharedEvents.Emplace(Tag, Payload, Origin);
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}
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void FStateTreeEventQueue::ConsumeEvent(const FStateTreeSharedEvent& Event)
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{
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SharedEvents.RemoveAll([&EventToRemove = Event](const FStateTreeSharedEvent& Event)
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{
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return Event == EventToRemove;
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});
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}
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