ProceduralFoliageInstance.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreMinimal.h"
#include "UObject/ObjectMacros.h"
#include "EngineDefines.h"
#include "ProceduralFoliageInstance.generated.h"
 
class UActorComponent;
class UFoliageType;
struct FProceduralFoliageInstance;
 
UENUM(BlueprintType)
namespace ESimulationOverlap
{
    enum Type : int
    {
        /*Instances overlap with collision*/
        CollisionOverlap,
        /*Instances overlap with shade*/
        ShadeOverlap,
        /*No overlap*/
        None
    };
}
 
UENUM(BlueprintType)
namespace ESimulationQuery
{
    enum Type : int
    {
        None = 0 UMETA(Hidden),
        /*Instances overlap with collision*/
        CollisionOverlap = 1,
        /*Instances overlap with shade*/
        ShadeOverlap = 2,
        /*any overlap*/
        AnyOverlap = 3
    };
}
 
struct FProceduralFoliageInstance;
struct FProceduralFoliageOverlap
{
    FProceduralFoliageOverlap(FProceduralFoliageInstance* InA, FProceduralFoliageInstance* InB, ESimulationOverlap::Type InType)
    : A(InA)
    , B(InB)
    , OverlapType(InType)
    {}
 
    FProceduralFoliageInstance* A;
    FProceduralFoliageInstance* B;
    ESimulationOverlap::Type OverlapType;
};
 
USTRUCT(BlueprintType)
struct FProceduralFoliageInstance
{
public:
    GENERATED_USTRUCT_BODY()
    FOLIAGE_API FProceduralFoliageInstance();
 
    static FOLIAGE_API FProceduralFoliageInstance* Domination(FProceduralFoliageInstance* A, FProceduralFoliageInstance* B, ESimulationOverlap::Type OverlapType);
 
    FOLIAGE_API float GetMaxRadius() const;
    FOLIAGE_API float GetShadeRadius() const;
    FOLIAGE_API float GetCollisionRadius() const;
 
    bool IsAlive() const { return bAlive; }
 
    FOLIAGE_API void TerminateInstance();
 
public:
    UPROPERTY()
    FQuat Rotation;
 
    UPROPERTY(Category = ProceduralFoliageInstance, EditAnywhere, BlueprintReadWrite)
    FVector Location;
 
    UPROPERTY(Category = ProceduralFoliageInstance, EditAnywhere, BlueprintReadWrite)
    float Age;
 
    UPROPERTY(Category = ProceduralFoliageInstance, EditAnywhere, BlueprintReadWrite)
    FVector Normal;
 
    UPROPERTY()
    float Scale;
 
    UPROPERTY()
    TObjectPtr<const UFoliageType> Type;
 
    UActorComponent* BaseComponent;
 
    bool bBlocker;
private:
    bool bAlive;
};