Files
UnrealEngine/Engine/Source/Runtime/MovieSceneTracks/Public/Channels/MovieSceneCameraShakeSourceTriggerChannel.h
2025-05-18 13:04:45 +08:00

117 lines
4.2 KiB
C++

// Copyright Epic Games, Inc. All Rights Reserved.
#pragma once
#include "Camera/CameraShakeBase.h"
#include "Camera/CameraTypes.h"
#include "Channels/MovieSceneChannel.h"
#include "Channels/MovieSceneChannelData.h"
#include "Channels/MovieSceneChannelTraits.h"
#include "Containers/Array.h"
#include "Containers/ArrayView.h"
#include "CoreTypes.h"
#include "Curves/KeyHandle.h"
#include "Math/Range.h"
#include "Math/Rotator.h"
#include "Misc/FrameNumber.h"
#include "Misc/FrameTime.h"
#include "Templates/SubclassOf.h"
#include "UObject/ObjectMacros.h"
#include "MovieSceneCameraShakeSourceTriggerChannel.generated.h"
class UCameraShakeBase;
struct FFrameRate;
struct FKeyHandle;
USTRUCT(BlueprintType)
struct FMovieSceneCameraShakeSourceTrigger
{
GENERATED_BODY()
FMovieSceneCameraShakeSourceTrigger()
: ShakeClass(nullptr)
, PlayScale(1.f)
, PlaySpace(ECameraShakePlaySpace::CameraLocal)
, UserDefinedPlaySpace(ForceInitToZero)
{}
FMovieSceneCameraShakeSourceTrigger(TSubclassOf<UCameraShakeBase> InShakeClass)
: ShakeClass(InShakeClass)
, PlayScale(1.f)
, PlaySpace(ECameraShakePlaySpace::CameraLocal)
, UserDefinedPlaySpace(ForceInitToZero)
{}
/** Class of the camera shake to play */
UPROPERTY(EditAnywhere, BlueprintReadWrite, Category="Camera Shake")
TSubclassOf<UCameraShakeBase> ShakeClass;
/** Scalar that affects shake intensity */
UPROPERTY(EditAnywhere, BlueprintReadWrite, Category="Camera Shake")
float PlayScale;
UPROPERTY(EditAnywhere, BlueprintReadWrite, Category="Camera Shake")
ECameraShakePlaySpace PlaySpace;
UPROPERTY(EditAnywhere, BlueprintReadWrite, Category="Camera Shake")
FRotator UserDefinedPlaySpace;
};
USTRUCT()
struct FMovieSceneCameraShakeSourceTriggerChannel : public FMovieSceneChannel
{
GENERATED_BODY()
typedef FMovieSceneCameraShakeSourceTrigger CurveValueType;
FORCEINLINE TMovieSceneChannelData<FMovieSceneCameraShakeSourceTrigger> GetData()
{
return TMovieSceneChannelData<FMovieSceneCameraShakeSourceTrigger>(&KeyTimes, &KeyValues, this, &KeyHandles);
}
FORCEINLINE TMovieSceneChannelData<const FMovieSceneCameraShakeSourceTrigger> GetData() const
{
return TMovieSceneChannelData<const FMovieSceneCameraShakeSourceTrigger>(&KeyTimes, &KeyValues);
}
public:
// ~ FMovieSceneChannel Interface
MOVIESCENETRACKS_API virtual void GetKeys(const TRange<FFrameNumber>& WithinRange, TArray<FFrameNumber>* OutKeyTimes, TArray<FKeyHandle>* OutKeyHandles) override;
MOVIESCENETRACKS_API virtual void GetKeyTimes(TArrayView<const FKeyHandle> InHandles, TArrayView<FFrameNumber> OutKeyTimes) override;
MOVIESCENETRACKS_API virtual void SetKeyTimes(TArrayView<const FKeyHandle> InHandles, TArrayView<const FFrameNumber> InKeyTimes) override;
MOVIESCENETRACKS_API virtual void DuplicateKeys(TArrayView<const FKeyHandle> InHandles, TArrayView<FKeyHandle> OutNewHandles) override;
MOVIESCENETRACKS_API virtual void DeleteKeys(TArrayView<const FKeyHandle> InHandles) override;
MOVIESCENETRACKS_API virtual void DeleteKeysFrom(FFrameNumber InTime, bool bDeleteKeysBefore) override;
MOVIESCENETRACKS_API virtual void RemapTimes(const UE::MovieScene::IRetimingInterface& Retimer) override;
MOVIESCENETRACKS_API virtual TRange<FFrameNumber> ComputeEffectiveRange() const override;
MOVIESCENETRACKS_API virtual int32 GetNumKeys() const override;
MOVIESCENETRACKS_API virtual void Reset() override;
MOVIESCENETRACKS_API virtual void Offset(FFrameNumber DeltaPosition) override;
private:
/** Array of times for each key */
UPROPERTY(meta=(KeyTimes))
TArray<FFrameNumber> KeyTimes;
/** Array of values that correspond to each key time */
UPROPERTY(meta=(KeyValues))
TArray<FMovieSceneCameraShakeSourceTrigger> KeyValues;
/** This needs to be a UPROPERTY so it gets saved into editor transactions but transient so it doesn't get saved into assets. */
UPROPERTY(Transient)
FMovieSceneKeyHandleMap KeyHandles;
};
template<>
struct TMovieSceneChannelTraits<FMovieSceneCameraShakeSourceTriggerChannel> : TMovieSceneChannelTraitsBase<FMovieSceneCameraShakeSourceTriggerChannel>
{
enum { SupportsDefaults = false };
};
inline bool EvaluateChannel(const FMovieSceneCameraShakeSourceTriggerChannel* InChannel, FFrameTime InTime, FMovieSceneCameraShakeSourceTrigger& OutValue)
{
return false;
}