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[at]Aaron.Cox #preflight 61b2907fc01c89f906c514ae #preflight 61b2907fc01c89f906c514ae #ROBOMERGE-AUTHOR: jose.villarroel #ROBOMERGE-SOURCE: CL 18426828 in //UE5/Release-5.0/... via CL 18427088 #ROBOMERGE-BOT: STARSHIP (Release-Engine-Staging -> Release-Engine-Test) (v897-18405271) [CL 18427124 by jose villarroel in ue5-release-engine-test branch]
62 lines
1.9 KiB
C++
62 lines
1.9 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "CoreMinimal.h"
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#include "AnimationModifier.h"
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#include "DistanceCurveModifier.generated.h"
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// @todo: Consolidate with EMotionExtractor_Axis
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/** Axes to calculate the distance value from */
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UENUM(BlueprintType)
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enum class EDistanceCurve_Axis : uint8
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{
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X,
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Y,
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Z,
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XY,
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XZ,
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YZ,
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XYZ
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};
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/** Extracts traveling distance information from root motion and bakes it to a curve.
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* A negative value indicates distance remaining to a stop or pivot point.
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* A positive value indicates distance traveled from a start point or from the beginning of the clip.
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*/
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UCLASS()
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class UDistanceCurveModifier : public UAnimationModifier
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{
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GENERATED_BODY()
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public:
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/** Rate used to sample the animation. */
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UPROPERTY(EditAnywhere, Category = Settings, meta = (ClampMin = "1"))
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int32 SampleRate = 30;
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/** Name for the generated curve. */
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UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = Settings)
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FName CurveName = "Distance";
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/** Root motion speed must be below this threshold to be considered stopped. */
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UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = Settings, meta=(EditCondition="!bStopAtEnd"))
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float StopSpeedThreshold = 5.0f;
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/** Axes to calculate the distance value from. */
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UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = Settings)
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EDistanceCurve_Axis Axis = EDistanceCurve_Axis::XY;
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/** Root motion is considered to be stopped at the clip's end */
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UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = Settings)
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bool bStopAtEnd = false;
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virtual void OnApply_Implementation(UAnimSequence* Animation) override;
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virtual void OnRevert_Implementation(UAnimSequence* Animation) override;
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private:
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/** Helper functions to calculate the magnitude of a vector only considering a specific axis or axes */
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static float CalculateMagnitude(const FVector& Vector, EDistanceCurve_Axis Axis);
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static float CalculateMagnitudeSq(const FVector& Vector, EDistanceCurve_Axis Axis);
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}; |