TaggedComponent.h

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#pragma once
 
#include "CoreMinimal.h"
#include "Materials/MaterialInstanceDynamic.h"
#include "Engine/InstancedStaticMesh.h"
#include "Components/HierarchicalInstancedStaticMeshComponent.h"
 
#include "TaggedComponent.generated.h"
 
UCLASS( meta=(BlueprintSpawnableComponent) )
class CARLA_API UTaggedComponent : public UPrimitiveComponent
{
  GENERATED_BODY()
 
public:
  UTaggedComponent(const FObjectInitializer& ObjectInitializer);
 
  virtual FPrimitiveSceneProxy * CreateSceneProxy() override;
  virtual void TickComponent(float DeltaTime, enum ELevelTick TickType, FActorComponentTickFunction * ThisTickFunction) override;
  virtual void OnRegister() override;
  virtual FBoxSphereBounds CalcBounds(const FTransform & LocalToWorld) const ;
 
  // FIXME: Should take an int32 and convert to FVector4
  void SetColor(FLinearColor color);
  FLinearColor GetColor();
 
private:
  FLinearColor Color;
 
  UPROPERTY()
  UMaterial * TaggedMaterial;
 
  UPROPERTY()
  UMaterialInstanceDynamic * TaggedMID;
 
  bool bSkeletalMesh = false;
 
  FPrimitiveSceneProxy * CreateSceneProxy(UStaticMeshComponent * StaticMeshComponent);
  FPrimitiveSceneProxy * CreateSceneProxy(USkeletalMeshComponent * SkeletalMeshComponent);
  FPrimitiveSceneProxy * CreateSceneProxy(UHierarchicalInstancedStaticMeshComponent * MeshComponent);
  FPrimitiveSceneProxy * CreateSceneProxy(UInstancedStaticMeshComponent * MeshComponent);
 
  // small hack to allow unreal to initialize the base component in skeletal meshes
  bool bShouldWaitFrame = true;
  int NumFramesToWait = 2;
};
 
class FTaggedStaticMeshSceneProxy : public FStaticMeshSceneProxy
{
public:
  FTaggedStaticMeshSceneProxy(UStaticMeshComponent * Component, bool bForceLODsShareStaticLighting, UMaterialInstance * MaterialInstance);
 
  virtual FPrimitiveViewRelevance GetViewRelevance(const FSceneView * View) const override;
 
private:
  UMaterialInstance * TaggedMaterialInstance;
};
 
class FTaggedSkeletalMeshSceneProxy : public FSkeletalMeshSceneProxy
{
public:
  FTaggedSkeletalMeshSceneProxy(const USkinnedMeshComponent * Component, FSkeletalMeshRenderData * InSkeletalMeshRenderData, UMaterialInstance * MaterialInstance);
 
  virtual FPrimitiveViewRelevance GetViewRelevance(const FSceneView * View) const override;
 
private:
  UMaterialInstance * TaggedMaterialInstance;
};
 
class FTaggedInstancedStaticMeshSceneProxy : public FInstancedStaticMeshSceneProxy
{
public:
  FTaggedInstancedStaticMeshSceneProxy(UInstancedStaticMeshComponent * Component, ERHIFeatureLevel::Type InFeatureLevel, UMaterialInstance * MaterialInstance);
 
  virtual FPrimitiveViewRelevance GetViewRelevance(const FSceneView * View) const override;
 
private:
  UMaterialInstance * TaggedMaterialInstance;
};
 
 
class FTaggedHierarchicalStaticMeshSceneProxy : public FHierarchicalStaticMeshSceneProxy
{
public:
  FTaggedHierarchicalStaticMeshSceneProxy(UHierarchicalInstancedStaticMeshComponent * Component, bool bInIsGrass, ERHIFeatureLevel::Type InFeatureLevel, UMaterialInstance * MaterialInstance);
 
  virtual FPrimitiveViewRelevance GetViewRelevance(const FSceneView * View) const override;
 
private:
  UMaterialInstance * TaggedMaterialInstance;
};