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- don't allow delete when an Accept-style tool is active. This prevents most problems but is very hard-line from UX perspective. - add FPrimitiveComponentTarget::IsValid(), use in various ComponentTarget functions to avoid trying to access a Component that has been deleted. Still returns null in many places which callers will need to handle. #rb michael.daum #rnx #jira UE-86277 #ROBOMERGE-SOURCE: CL 11960881 in //UE4/Release-4.25/... via CL 11960906 #ROBOMERGE-BOT: RELEASE (Release-4.25Plus -> Main) (v656-11643781) [CL 11960972 by ryan schmidt in Main branch]
135 lines
2.8 KiB
C++
135 lines
2.8 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#include "ComponentSourceInterfaces.h"
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#include "Components/PrimitiveComponent.h"
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#include "Containers/Array.h"
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namespace
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{
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TArray<TUniquePtr<FComponentTargetFactory>> Factories;
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}
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void AddComponentTargetFactory( TUniquePtr<FComponentTargetFactory> Factory )
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{
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Factories.Push( MoveTemp(Factory) );
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}
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bool CanMakeComponentTarget(UActorComponent* Component)
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{
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for ( const auto& Factory : Factories )
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{
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if ( Factory->CanBuild(Component) )
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{
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return true;
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}
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}
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return false;
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}
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TUniquePtr<FPrimitiveComponentTarget> MakeComponentTarget(UPrimitiveComponent* Component)
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{
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for ( const auto& Factory : Factories )
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{
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if ( Factory->CanBuild( Component ) )
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{
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return Factory->Build( Component );
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}
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}
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return {};
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}
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bool FComponentMaterialSet::operator!=(const FComponentMaterialSet& Other) const
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{
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int32 Num = Materials.Num();
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if (Other.Materials.Num() != Num)
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{
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return true;
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}
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for (int32 j = 0; j < Num; ++j)
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{
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if (Other.Materials[j] != Materials[j])
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{
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return true;
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}
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}
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return false;
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}
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bool FPrimitiveComponentTarget::IsValid() const
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{
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return (Component->IsPendingKillOrUnreachable() == false) && Component->IsValidLowLevel();
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}
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AActor* FPrimitiveComponentTarget::GetOwnerActor() const
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{
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return IsValid() ? Component->GetOwner() : nullptr;
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}
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UPrimitiveComponent* FPrimitiveComponentTarget::GetOwnerComponent() const
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{
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return IsValid() ? Component : nullptr;
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}
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void FPrimitiveComponentTarget::SetOwnerVisibility(bool bVisible) const
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{
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if (IsValid())
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{
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Component->SetVisibility(bVisible);
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}
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}
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int32 FPrimitiveComponentTarget::GetNumMaterials() const
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{
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return IsValid() ? Component->GetNumMaterials() : 0;
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}
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UMaterialInterface* FPrimitiveComponentTarget::GetMaterial(int32 MaterialIndex) const
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{
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return IsValid() ? Component->GetMaterial(MaterialIndex) : nullptr;
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}
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void FPrimitiveComponentTarget::GetMaterialSet(FComponentMaterialSet& MaterialSetOut, bool bAssetMaterials) const
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{
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if (IsValid())
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{
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int32 NumMaterials = Component->GetNumMaterials();
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MaterialSetOut.Materials.SetNum(NumMaterials);
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for (int32 k = 0; k < NumMaterials; ++k)
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{
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MaterialSetOut.Materials[k] = Component->GetMaterial(k);
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}
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}
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}
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void FPrimitiveComponentTarget::CommitMaterialSetUpdate(const FComponentMaterialSet& MaterialSet, bool bApplyToAsset)
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{
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check(false); // not implemented
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}
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FTransform FPrimitiveComponentTarget::GetWorldTransform() const
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{
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return IsValid() ? Component->GetComponentTransform() : FTransform::Identity;
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}
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bool FPrimitiveComponentTarget::HitTest(const FRay& WorldRay, FHitResult& OutHit) const
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{
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FVector End = WorldRay.PointAt(HALF_WORLD_MAX);
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if (IsValid() && Component->LineTraceComponent(OutHit, WorldRay.Origin, End, FCollisionQueryParams(SCENE_QUERY_STAT(HitTest), true)))
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{
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return true;
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}
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return false;
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}
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