109 lines
3.2 KiB
C++
109 lines
3.2 KiB
C++
// Copyright Pacificao. All Rights Reserved.
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#include "AgrarianFoliagePatch.h"
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#include "AgrarianPerformanceStats.h"
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#include "Components/HierarchicalInstancedStaticMeshComponent.h"
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#include "Components/SceneComponent.h"
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#include "ProfilingDebugging/CpuProfilerTrace.h"
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namespace
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{
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void ConfigureFoliageComponent(UHierarchicalInstancedStaticMeshComponent* Component, const FName CollisionProfileName)
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{
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if (!Component)
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{
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return;
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}
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Component->SetMobility(EComponentMobility::Static);
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Component->SetCollisionProfileName(CollisionProfileName);
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Component->SetGenerateOverlapEvents(false);
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Component->bCastDynamicShadow = true;
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Component->bCastStaticShadow = true;
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Component->InstanceStartCullDistance = 120000;
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Component->InstanceEndCullDistance = 180000;
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}
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}
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AAgrarianFoliagePatch::AAgrarianFoliagePatch()
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{
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PrimaryActorTick.bCanEverTick = false;
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SceneRoot = CreateDefaultSubobject<USceneComponent>(TEXT("SceneRoot"));
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RootComponent = SceneRoot;
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SceneRoot->SetMobility(EComponentMobility::Static);
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TreeInstances = CreateDefaultSubobject<UHierarchicalInstancedStaticMeshComponent>(TEXT("TreeInstances"));
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TreeInstances->SetupAttachment(SceneRoot);
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ConfigureFoliageComponent(TreeInstances, TEXT("BlockAll"));
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ShrubInstances = CreateDefaultSubobject<UHierarchicalInstancedStaticMeshComponent>(TEXT("ShrubInstances"));
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ShrubInstances->SetupAttachment(SceneRoot);
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ConfigureFoliageComponent(ShrubInstances, TEXT("NoCollision"));
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GrassInstances = CreateDefaultSubobject<UHierarchicalInstancedStaticMeshComponent>(TEXT("GrassInstances"));
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GrassInstances->SetupAttachment(SceneRoot);
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ConfigureFoliageComponent(GrassInstances, TEXT("NoCollision"));
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}
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void AAgrarianFoliagePatch::ClearFoliage()
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{
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SCOPE_CYCLE_COUNTER(STAT_AgrarianFoliageInstanceMutation);
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TRACE_CPUPROFILER_EVENT_SCOPE(AgrarianFoliageClear);
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if (TreeInstances)
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{
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TreeInstances->ClearInstances();
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}
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if (ShrubInstances)
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{
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ShrubInstances->ClearInstances();
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}
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if (GrassInstances)
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{
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GrassInstances->ClearInstances();
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}
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}
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int32 AAgrarianFoliagePatch::AddTreeInstance(const FTransform& InstanceTransform)
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{
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SCOPE_CYCLE_COUNTER(STAT_AgrarianFoliageInstanceMutation);
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TRACE_CPUPROFILER_EVENT_SCOPE(AgrarianFoliageAddTreeInstance);
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return TreeInstances ? TreeInstances->AddInstance(InstanceTransform, true) : INDEX_NONE;
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}
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int32 AAgrarianFoliagePatch::AddShrubInstance(const FTransform& InstanceTransform)
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{
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SCOPE_CYCLE_COUNTER(STAT_AgrarianFoliageInstanceMutation);
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TRACE_CPUPROFILER_EVENT_SCOPE(AgrarianFoliageAddShrubInstance);
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return ShrubInstances ? ShrubInstances->AddInstance(InstanceTransform, true) : INDEX_NONE;
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}
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int32 AAgrarianFoliagePatch::AddGrassInstance(const FTransform& InstanceTransform)
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{
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SCOPE_CYCLE_COUNTER(STAT_AgrarianFoliageInstanceMutation);
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TRACE_CPUPROFILER_EVENT_SCOPE(AgrarianFoliageAddGrassInstance);
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return GrassInstances ? GrassInstances->AddInstance(InstanceTransform, true) : INDEX_NONE;
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}
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int32 AAgrarianFoliagePatch::GetTreeInstanceCount() const
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{
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return TreeInstances ? TreeInstances->GetInstanceCount() : 0;
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}
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int32 AAgrarianFoliagePatch::GetShrubInstanceCount() const
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{
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return ShrubInstances ? ShrubInstances->GetInstanceCount() : 0;
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}
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int32 AAgrarianFoliagePatch::GetGrassInstanceCount() const
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{
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return GrassInstances ? GrassInstances->GetInstanceCount() : 0;
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}
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