ProceduralFoliageBroadphase.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreMinimal.h"
#include "ProceduralFoliageInstance.h"
#include "GenericQuadTree.h"
 
class FProceduralFoliageBroadphase
{
public:
    FProceduralFoliageBroadphase(float TileSize = 0.f, float MinimumQuadTreeSize = 100.f);
    FProceduralFoliageBroadphase(const FProceduralFoliageBroadphase& OtherBroadphase);
    FProceduralFoliageBroadphase& operator=(const FProceduralFoliageBroadphase& OtherBroadphase);
 
    bool TestAgainstAABB(FProceduralFoliageInstance* Instance);
    void Insert(FProceduralFoliageInstance* Instance);
    bool GetOverlaps(FProceduralFoliageInstance* Instance, TArray<FProceduralFoliageOverlap>& Overlaps) const;
    void GetInstancesInBox(const FBox2D& Box, TArray<FProceduralFoliageInstance*>& Instances) const;
    void Remove(FProceduralFoliageInstance* Instance);
    void Empty();
 
private:
    TQuadTree<FProceduralFoliageInstance*, 4> QuadTree;
};