SoundNodeGroupControl.h

Go to the documentation of this file.

// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreMinimal.h"
#include "UObject/ObjectMacros.h"
#include "Sound/SoundNode.h"
#include "SoundNodeGroupControl.generated.h"
 
class FAudioDevice;
struct FActiveSound;
struct FSoundParseParameters;
struct FWaveInstance;
 
UCLASS(hidecategories=Object, editinlinenew, MinimalAPI, meta=( DisplayName="Group Control" ))
class USoundNodeGroupControl : public USoundNode
{
    GENERATED_UCLASS_BODY()
 
    /* How many active sounds are allowed for each group */
    UPROPERTY(EditAnywhere, editfixedsize, Category=GroupControl)
    TArray<int32> GroupSizes;
 
public:
    //~ Begin USoundNode Interface.
    virtual bool NotifyWaveInstanceFinished( FWaveInstance* WaveInstance ) override;
    virtual void ParseNodes( FAudioDevice* AudioDevice, const UPTRINT NodeWaveInstanceHash, FActiveSound& ActiveSound, const FSoundParseParameters& ParseParams, TArray<FWaveInstance*>& WaveInstances ) override;
    virtual int32 GetMaxChildNodes() const override 
    { 
        return MAX_ALLOWED_CHILD_NODES; 
    }
    virtual void InsertChildNode( int32 Index ) override;
    virtual void RemoveChildNode( int32 Index ) override;
#if WITH_EDITOR
    virtual void SetChildNodes(TArray<USoundNode*>& InChildNodes) override;
#endif //WITH_EDITOR
    virtual void CreateStartingConnectors() override;
    //~ End USoundNode Interface.
 
private:
    // Ensure the child count and group sizes are the same counts
    void FixGroupSizesArray();
 
    static TMap< USoundNodeGroupControl*, TArray< TMap< FActiveSound*, int32 > > > GroupControlSlotUsageMap;
};