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#jira UE-137361 #preflight 61b8c62b9c7c3936c8c79db6 #rb ludovic.chabant [CL 18456387 by Max Chen in ue5-main branch]
84 lines
3.1 KiB
C++
84 lines
3.1 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#include "Systems/FloatPerlinNoiseChannelEvaluatorSystem.h"
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#include "Systems/MovieScenePiecewiseFloatBlenderSystem.h"
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#include "EntitySystem/BuiltInComponentTypes.h"
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#include "EntitySystem/MovieSceneEntitySystemTask.h"
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#include "EntitySystem/MovieSceneEntitySystemLinker.h"
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#include "EntitySystem/MovieSceneEvalTimeSystem.h"
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#include "Channels/MovieSceneFloatPerlinNoiseChannel.h"
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#include "MovieSceneTracksComponentTypes.h"
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#include "Math/NumericLimits.h"
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DECLARE_CYCLE_STAT(TEXT("MovieScene: Evaluate Float Perlin Noise channels"), MovieSceneEval_EvaluateFloatPerlinNoiseChannelTask, STATGROUP_MovieSceneECS);
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namespace UE
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{
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namespace MovieScene
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{
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struct FEvaluateFloatPerlinNoiseChannels
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{
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FInstanceRegistry* InstanceRegistry;
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FEvaluateFloatPerlinNoiseChannels(FInstanceRegistry* InInstanceRegistry)
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: InstanceRegistry{ InInstanceRegistry }
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{
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check(InstanceRegistry);
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}
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void ForEachEntity(FMovieSceneFloatPerlinNoiseChannel FloatPerlinNoiseChannel, FInstanceHandle InstanceHandle, float& OutResult)
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{
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const FMovieSceneContext& Context = InstanceRegistry->GetContext(InstanceHandle);
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FFrameTime Time = Context.GetTime();
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FFrameRate Rate = Context.GetFrameRate();
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OutResult = FloatPerlinNoiseChannel.Evaluate(Rate.AsSeconds(Time));
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}
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};
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} // namespace MovieScene
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} // namespace UE
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UFloatPerlinNoiseChannelEvaluatorSystem::UFloatPerlinNoiseChannelEvaluatorSystem(const FObjectInitializer& ObjInit)
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: Super(ObjInit)
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{
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using namespace UE::MovieScene;
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const FBuiltInComponentTypes* BuiltInComponents = FBuiltInComponentTypes::Get();
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const FMovieSceneTracksComponentTypes* TrackComponents = FMovieSceneTracksComponentTypes::Get();
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RelevantComponent = TrackComponents->FloatPerlinNoiseChannel;
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if (HasAnyFlags(RF_ClassDefaultObject))
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{
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// Allow writing to all the possible channels
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for (int32 i = 0; i < UE_ARRAY_COUNT(BuiltInComponents->FloatResult); ++i)
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{
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DefineComponentProducer(UFloatPerlinNoiseChannelEvaluatorSystem::StaticClass(), BuiltInComponents->FloatResult[i]);
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}
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DefineImplicitPrerequisite(UMovieSceneEvalTimeSystem::StaticClass(), GetClass());
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DefineImplicitPrerequisite(GetClass(), UMovieScenePiecewiseFloatBlenderSystem::StaticClass());
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}
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}
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void UFloatPerlinNoiseChannelEvaluatorSystem::OnRun(FSystemTaskPrerequisites& InPrerequisites, FSystemSubsequentTasks& Subsequents)
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{
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using namespace UE::MovieScene;
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const FBuiltInComponentTypes* BuiltInComponents = FBuiltInComponentTypes::Get();
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const FMovieSceneTracksComponentTypes* TrackComponents = FMovieSceneTracksComponentTypes::Get();
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for (int32 i = 0; i < UE_ARRAY_COUNT(BuiltInComponents->FloatResult); ++i)
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{
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FEntityTaskBuilder()
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.Read(TrackComponents->FloatPerlinNoiseChannel)
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.Read(BuiltInComponents->InstanceHandle)
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.Write(BuiltInComponents->FloatResult[i])
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.FilterNone({ BuiltInComponents->Tags.Ignored })
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.SetStat(GET_STATID(MovieSceneEval_EvaluateFloatPerlinNoiseChannelTask))
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.Dispatch_PerEntity<FEvaluateFloatPerlinNoiseChannels>(&Linker->EntityManager, InPrerequisites, &Subsequents, GetLinker()->GetInstanceRegistry());
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}
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}
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