You've already forked UnrealEngineUWP
mirror of
https://github.com/izzy2lost/UnrealEngineUWP.git
synced 2026-03-26 18:15:20 -07:00
5786808b67
- at the end, no change on the data because this guarantees frame independent. - Added help and renamed variable to speed, so that it knows it is speed. Merging //depot/UE4-Orion/Engine/... to //depot/UE4-Orion/Engine/... [CL 2683714 by Lina Halper in Main branch]
103 lines
3.8 KiB
C++
103 lines
3.8 KiB
C++
// Copyright 1998-2015 Epic Games, Inc. All Rights Reserved.
|
|
|
|
#pragma once
|
|
|
|
#include "AnimNode_SkeletalControlBase.h"
|
|
#include "AnimNode_Trail.generated.h"
|
|
|
|
// in the future, we might use this for stretch set up as well
|
|
// for now this is unserializable, and transient only
|
|
struct FPerJointTrailSetup
|
|
{
|
|
/** How quickly we 'relax' the bones to their animated positions. */
|
|
float TrailRelaxationSpeedPerSecond;
|
|
};
|
|
|
|
/**
|
|
* Trail Controller
|
|
*/
|
|
|
|
USTRUCT()
|
|
struct ANIMGRAPHRUNTIME_API FAnimNode_Trail : public FAnimNode_SkeletalControlBase
|
|
{
|
|
GENERATED_USTRUCT_BODY()
|
|
|
|
/** Reference to the active bone in the hierarchy to modify. */
|
|
UPROPERTY(EditAnywhere, BlueprintReadWrite, Category=Trail)
|
|
FBoneReference TrailBone;
|
|
|
|
/** Number of bones above the active one in the hierarchy to modify. ChainLength should be at least 2. */
|
|
UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = Trail, meta = (ClampMin = "2", UIMin = "2"))
|
|
int32 ChainLength;
|
|
|
|
/** Axis of the bones to point along trail. */
|
|
UPROPERTY(EditAnywhere, BlueprintReadWrite, Category=Trail)
|
|
TEnumAsByte<EAxis::Type> ChainBoneAxis;
|
|
|
|
/** Invert the direction specified in ChainBoneAxis. */
|
|
UPROPERTY(EditAnywhere, BlueprintReadWrite, Category=Trail)
|
|
bool bInvertChainBoneAxis;
|
|
|
|
/** Limit the amount that a bone can stretch from its ref-pose length. */
|
|
UPROPERTY(EditAnywhere, BlueprintReadWrite, Category=Trail)
|
|
bool bLimitStretch;
|
|
|
|
/** How quickly we 'relax' the bones to their animated positions. Deprecated. Replaced to TrailRelaxationCurve */
|
|
UPROPERTY()
|
|
float TrailRelaxation_DEPRECATED;
|
|
|
|
/** How quickly we 'relax' the bones to their animated positions. Time 0 will map to top root joint, time 1 will map to the bottom joint. */
|
|
UPROPERTY(EditAnywhere, BlueprintReadWrite, Category=Trail, meta=(CustomizeProperty))
|
|
FRuntimeFloatCurve TrailRelaxationSpeed;
|
|
|
|
/** If bLimitStretch is true, this indicates how long a bone can stretch beyond its length in the ref-pose. */
|
|
UPROPERTY(EditAnywhere, BlueprintReadWrite, Category=Trail)
|
|
float StretchLimit;
|
|
|
|
/** 'Fake' velocity applied to bones. */
|
|
UPROPERTY(EditAnywhere, BlueprintReadWrite, Category=Trail)
|
|
FVector FakeVelocity;
|
|
|
|
/** Whether 'fake' velocity should be applied in actor or world space. */
|
|
UPROPERTY(EditAnywhere, BlueprintReadWrite, Category=Trail)
|
|
bool bActorSpaceFakeVel;
|
|
|
|
/** Internal use - we need the timestep to do the relaxation in CalculateNewBoneTransforms. */
|
|
float ThisTimstep;
|
|
|
|
/** Did we have a non-zero ControlStrength last frame. */
|
|
bool bHadValidStrength;
|
|
|
|
/** Component-space locations of the bones from last frame. Each frame these are moved towards their 'animated' locations. */
|
|
TArray<FVector> TrailBoneLocations;
|
|
|
|
/** LocalToWorld used last frame, used for building transform between frames. */
|
|
FMatrix OldLocalToWorld;
|
|
|
|
/** Per Joint Trail Set up*/
|
|
TArray<FPerJointTrailSetup> PerJointTrailData;
|
|
|
|
FAnimNode_Trail();
|
|
|
|
// FAnimNode_Base interface
|
|
virtual void Initialize(const FAnimationInitializeContext& Context) override;
|
|
virtual void Update(const FAnimationUpdateContext& Context) override;
|
|
virtual void GatherDebugData(FNodeDebugData& DebugData) override;
|
|
// End of FAnimNode_Base interface
|
|
|
|
// FAnimNode_SkeletalControlBase interface
|
|
virtual void EvaluateBoneTransforms(USkeletalMeshComponent* SkelComp, FCSPose<FCompactPose>& MeshBases, TArray<FBoneTransform>& OutBoneTransforms) override;
|
|
virtual bool IsValidToEvaluate(const USkeleton* Skeleton, const FBoneContainer& RequiredBones) override;
|
|
// End of FAnimNode_SkeletalControlBase interface
|
|
|
|
void PostLoad();
|
|
|
|
private:
|
|
// FAnimNode_SkeletalControlBase interface
|
|
virtual void InitializeBoneReferences(const FBoneContainer& RequiredBones) override;
|
|
// End of FAnimNode_SkeletalControlBase interface
|
|
|
|
FVector GetAlignVector(EAxis::Type AxisOption, bool bInvert);
|
|
|
|
TArray<FCompactPoseBoneIndex> ChainBoneIndices;
|
|
}; |