MovieSceneCameraCutGameHandler.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreMinimal.h"
#include "Evaluation/PreAnimatedState/MovieScenePreAnimatedStateStorage.h"
#include "Evaluation/PreAnimatedState/MovieScenePreAnimatedStateTypes.h"
#include "Evaluation/PreAnimatedState/MovieScenePreAnimatedStorageID.inl"
 
class UMovieSceneEntitySystemLinker;
struct FMovieSceneCameraCutParams;
 
namespace UE::MovieScene
{
 
struct FCameraCutPlaybackCapability;
struct FPreAnimatedCameraCutStorage;
struct FSequenceInstance;
 
struct FPreAnimatedCameraCutState
{
    FObjectKey LastWorld;
    FObjectKey LastLocalPlayer;
    FObjectKey LastViewTarget;
    TOptional<EAspectRatioAxisConstraint> LastAspectRatioAxisConstraint;
};
 
struct FPreAnimatedCameraCutTraits : FPreAnimatedStateTraits
{
    // Key type is an integer, to be maybe later used as the splitscreen index.
    using KeyType = uint8;
    using StorageType = FPreAnimatedCameraCutState;
 
    static bool ShouldHandleWorldCameraCuts(UWorld* World);
    static StorageType CachePreAnimatedValue(UObject* PlaybackContext, uint8 InKey);
 
    void RestorePreAnimatedValue(uint8 InKey, const StorageType& CachedValue, const FRestoreStateParams& Params);
};
 
struct FPreAnimatedCameraCutStorage : TPreAnimatedStateStorage<FPreAnimatedCameraCutTraits>
{
    static TAutoRegisterPreAnimatedStorageID<FPreAnimatedCameraCutStorage> StorageID;
};
 
struct FCameraCutGameHandler
{
    FCameraCutGameHandler(
            UMovieSceneEntitySystemLinker* InLinker,
            const FSequenceInstance& InSequenceInstance);
 
    void SetCameraCut(
            UObject* CameraObject, 
            const FMovieSceneCameraCutParams& CameraCutParams);
 
    static void CachePreAnimatedValue(
            UMovieSceneEntitySystemLinker* Linker,
            const FSequenceInstance& SequenceInstance);
    static void ForcePreAnimatedValueRestore(
            UMovieSceneEntitySystemLinker* Linker,
            const FSequenceInstance& SequenceInstance);
 
private:
    UMovieSceneEntitySystemLinker* Linker;
    const FSequenceInstance& SequenceInstance;
};
 
    const APlayerController* GetPlaybackController(const UObject* PlaybackContext);
}  // namespace UE::MovieScene