MaterialExpressionStaticComponentMaskParameter.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
 
#pragma once
 
#include "CoreMinimal.h"
#include "UObject/ObjectMacros.h"
#include "MaterialExpressionIO.h"
#include "Materials/MaterialExpressionParameter.h"
#include "MaterialExpressionStaticComponentMaskParameter.generated.h"
 
UCLASS(collapsecategories, hidecategories=Object, MinimalAPI)
class UMaterialExpressionStaticComponentMaskParameter : public UMaterialExpressionParameter
{
    GENERATED_BODY()
 
public:
 
    UPROPERTY()
    FExpressionInput Input;
 
    UPROPERTY(EditAnywhere, Category=MaterialExpressionStaticComponentMaskParameter, meta = (ShowAsInputPin = "Advanced"))
    uint32 DefaultR:1;
 
    UPROPERTY(EditAnywhere, Category=MaterialExpressionStaticComponentMaskParameter, meta = (ShowAsInputPin = "Advanced"))
    uint32 DefaultG:1;
 
    UPROPERTY(EditAnywhere, Category=MaterialExpressionStaticComponentMaskParameter, meta = (ShowAsInputPin = "Advanced"))
    uint32 DefaultB:1;
 
    UPROPERTY(EditAnywhere, Category=MaterialExpressionStaticComponentMaskParameter, meta = (ShowAsInputPin = "Advanced"))
    uint32 DefaultA:1;
 
 
public:
 
    //~ Begin UMaterialExpression Interface
#if WITH_EDITOR
    virtual void Build(MIR::FEmitter& Emitter) override;
    virtual int32 Compile(class FMaterialCompiler* Compiler, int32 OutputIndex) override;
    virtual void GetCaption(TArray<FString>& OutCaptions) const override;
    virtual bool IsStaticExpression() const override { return true; }
    virtual bool GetParameterValue(FMaterialParameterMetadata& OutMeta) const override
    {
        OutMeta.Value = FMaterialParameterValue(DefaultR, DefaultG, DefaultB, DefaultA);
        return Super::GetParameterValue(OutMeta);
    }
    virtual bool SetParameterValue(const FName& Name, const FMaterialParameterMetadata& Meta, EMaterialExpressionSetParameterValueFlags Flags) override
    {
        if (Meta.Value.Type == EMaterialParameterType::StaticComponentMask)
        {
            if (SetParameterValue(Name,
                Meta.Value.Bool[0],
                Meta.Value.Bool[1],
                Meta.Value.Bool[2],
                Meta.Value.Bool[3],
                Meta.ExpressionGuid,
                Flags))
            {
                if (EnumHasAnyFlags(Flags, EMaterialExpressionSetParameterValueFlags::AssignGroupAndSortPriority))
                {
                    Group = Meta.Group;
                    SortPriority = Meta.SortPriority;
                }
                return true;
            }
        }
        return false;
    }
#endif
    //~ End UMaterialExpression Interface
 
#if WITH_EDITOR
    bool SetParameterValue(FName InParameterName, bool InR, bool InG, bool InB, bool InA, FGuid InExpressionGuid, EMaterialExpressionSetParameterValueFlags Flags = EMaterialExpressionSetParameterValueFlags::None);
#endif
};