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#jira UE-76569 #rb max.chen #ROBOMERGE-OWNER: ben.marsh #ROBOMERGE-AUTHOR: mike.zyracki #ROBOMERGE-SOURCE: CL 7280102 in //UE4/Release-4.23/... via CL 7280144 #ROBOMERGE-BOT: BUILD (Main -> Dev-Build) (v371-7306989) [CL 7350675 by mike zyracki in Dev-Build branch]
73 lines
3.0 KiB
C++
73 lines
3.0 KiB
C++
// Copyright 1998-2019 Epic Games, Inc. All Rights Reserved.
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/**
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*
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* This Instance only contains one AnimationAsset, and produce poses
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* Used by Preview in AnimGraph, Playing single animation in Kismet2 and etc
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*/
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#pragma once
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#include "Animation/AnimInstance.h"
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#include "Components/SkeletalMeshComponent.h"
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#include "AnimCustomInstance.generated.h"
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UCLASS(transient, NotBlueprintable)
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class ANIMGRAPHRUNTIME_API UAnimCustomInstance : public UAnimInstance
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{
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GENERATED_UCLASS_BODY()
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/**
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* Called to bind a typed UAnimCustomInstance to an existing skeletal mesh component
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* @return the current (or newly created) UAnimCustomInstance
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*/
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template<typename InstanceClassType>
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static InstanceClassType* BindToSkeletalMeshComponent(USkeletalMeshComponent* InSkeletalMeshComponent, bool& bOutWasCreated)
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{
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bOutWasCreated = false;
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// make sure to tick and refresh all the time when ticks
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// @TODO: this needs restoring post-binding
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InSkeletalMeshComponent->VisibilityBasedAnimTickOption = EVisibilityBasedAnimTickOption::AlwaysTickPoseAndRefreshBones;
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#if WITH_EDITOR
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InSkeletalMeshComponent->SetUpdateAnimationInEditor(true);
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#endif
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// we use sequence instance if it's using anim blueprint that matches. Otherwise, we create sequence player
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// this might need more check - i.e. making sure if it's same skeleton and so on,
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// Ideally we could just call NeedToSpawnAnimScriptInstance call, which is protected now
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const bool bShouldUseSequenceInstance = ShouldUseSequenceInstancePlayer(InSkeletalMeshComponent);
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// if it should use sequence instance
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if (bShouldUseSequenceInstance)
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{
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// this has to wrap around with this because we don't want to reinitialize everytime they come here
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// SetAnimationMode will reinitiaize it even if it's same, so make sure we just call SetAnimationMode if not AnimationCustomMode
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if (InSkeletalMeshComponent->GetAnimationMode() != EAnimationMode::AnimationCustomMode)
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{
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InSkeletalMeshComponent->SetAnimationMode(EAnimationMode::AnimationCustomMode);
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}
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if (Cast<UAnimCustomInstance>(InSkeletalMeshComponent->AnimScriptInstance) == nullptr || !InSkeletalMeshComponent->AnimScriptInstance->GetClass()->IsChildOf(InstanceClassType::StaticClass()))
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{
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InstanceClassType* SequencerInstance = NewObject<InstanceClassType>(InSkeletalMeshComponent, InstanceClassType::StaticClass());
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InSkeletalMeshComponent->AnimScriptInstance = SequencerInstance;
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InSkeletalMeshComponent->AnimScriptInstance->InitializeAnimation();
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bOutWasCreated = true;
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return SequencerInstance;
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}
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else
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{
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return Cast<InstanceClassType>(InSkeletalMeshComponent->AnimScriptInstance);
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}
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}
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return nullptr;
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}
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/** Called to unbind a UAnimCustomInstance to an existing skeletal mesh component */
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static void UnbindFromSkeletalMeshComponent(USkeletalMeshComponent* InSkeletalMeshComponent);
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private:
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/** Helper function for BindToSkeletalMeshComponent */
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static bool ShouldUseSequenceInstancePlayer(const USkeletalMeshComponent* SkeletalMeshComponent);
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};
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