ParticleModuleEventGenerator.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
 
#pragma once
 
#include "CoreMinimal.h"
#include "UObject/ObjectMacros.h"
#include "Particles/ParticleSystemComponent.h"
#include "Particles/Event/ParticleModuleEventBase.h"
#include "ParticleModuleEventGenerator.generated.h"
 
class UParticleModuleTypeDataBase;
struct FParticleEmitterInstance;
 
USTRUCT()
struct FParticleEvent_GenerateInfo
{
    GENERATED_USTRUCT_BODY()
 
    
    UPROPERTY(EditAnywhere, Category=ParticleEvent_GenerateInfo)
    TEnumAsByte<EParticleEventType> Type;
 
    UPROPERTY(EditAnywhere, Category=ParticleEvent_GenerateInfo)
    int32 Frequency;
 
    UPROPERTY(EditAnywhere, Category=ParticleEvent_GenerateInfo)
    int32 ParticleFrequency;
 
    UPROPERTY(EditAnywhere, Category=ParticleEvent_GenerateInfo)
    uint32 FirstTimeOnly:1;
 
    UPROPERTY(EditAnywhere, Category=ParticleEvent_GenerateInfo)
    uint32 LastTimeOnly:1;
 
    UPROPERTY(EditAnywhere, Category=ParticleEvent_GenerateInfo)
    uint32 UseReflectedImpactVector:1;
 
    UPROPERTY(EditAnywhere, Category=ParticleEvent_GenerateInfo)
    uint32 bUseOrbitOffset:1;
 
    UPROPERTY(EditAnywhere, Category=ParticleEvent_GenerateInfo)
    FName CustomName;
 
    UPROPERTY(EditAnywhere, Instanced, Category = ParticleEvent_GenerateInfo)
    TArray<TObjectPtr<class UParticleModuleEventSendToGame>> ParticleModuleEventsToSendToGame;
 
    FParticleEvent_GenerateInfo()
    : Type(0)
    , Frequency(0)
    , ParticleFrequency(0)
    , FirstTimeOnly(false)
    , LastTimeOnly(false)
    , UseReflectedImpactVector(false)
    , bUseOrbitOffset(false)
    {
    }
};
 
UCLASS(editinlinenew, hidecategories=Object, MinimalAPI, meta=(DisplayName = "Event Generator"))
class UParticleModuleEventGenerator : public UParticleModuleEventBase
{
    GENERATED_UCLASS_BODY()
 
    
    UPROPERTY(EditAnywhere, export, noclear, Category=Events)
    TArray<struct FParticleEvent_GenerateInfo> Events;
 
 
    //Begin UObject Interface
#if WITH_EDITOR
    virtual void    PostEditChangeProperty(FPropertyChangedEvent& PropertyChangedEvent) override;
#endif // WITH_EDITOR
    //End UObject Interface
 
    //Begin UParticleModule Interface
    virtual void    Spawn(const FSpawnContext& Context) override;
    virtual void    Update(const FUpdateContext& Context) override;
    virtual uint32  RequiredBytes(UParticleModuleTypeDataBase* TypeData) override;
    virtual uint32  RequiredBytesPerInstance() override;
    virtual uint32  PrepPerInstanceBlock(FParticleEmitterInstance* Owner, void* InstData) override;
    //End UParticleModule Interface
 
 
    virtual bool    HandleParticleSpawned(FParticleEmitterInstance* Owner, FParticleEventInstancePayload* EventPayload, FBaseParticle* NewParticle);
 
    virtual bool    HandleParticleKilled(FParticleEmitterInstance* Owner, FParticleEventInstancePayload* EventPayload, FBaseParticle* DeadParticle);
 
    virtual bool    HandleParticleCollision(FParticleEmitterInstance* Owner, FParticleEventInstancePayload* EventPayload, 
        FParticleCollisionPayload* CollidePayload, FHitResult* Hit, FBaseParticle* CollideParticle, FVector& CollideDirection);
 
    virtual bool    HandleParticleBurst(FParticleEmitterInstance* Owner, FParticleEventInstancePayload* EventPayload, const int32 ParticleCount);
};