4jcraft/Minecraft.World/Util/AABB.h

#pragma once

#include "Vec3.h"
#include "Definitions.h"

class HitResult;

class AABB {
    // 4J added so we can have separate pools for different threads
    class ThreadStorage {
    public:
        static const int POOL_SIZE = 1024;
        AABB* pool;
        unsigned int poolPointer;
        ThreadStorage();
        ~ThreadStorage();
    };
    static unsigned int tlsIdx;
    static ThreadStorage* tlsDefault;

public:
    // Each new thread that needs to use Vec3 pools will need to call one of the
    // following 2 functions, to either create its own local storage, or share
    // the default storage already allocated by the main thread
    static void CreateNewThreadStorage();
    static void UseDefaultThreadStorage();
    static void ReleaseThreadStorage();

    static AABB* newPermanent(double x0, double y0, double z0, double x1,
                              double y1, double z1);
    static void clearPool();
    static void resetPool();
    static AABB* newTemp(double x0, double y0, double z0, double x1, double y1,
                         double z1);

    double x0, y0, z0;
    double x1, y1, z1;

private:
    AABB(double x0, double y0, double z0, double x1, double y1, double z1);
    AABB() {}

public:
    AABB* set(double x0, double y0, double z0, double x1, double y1, double z1);
    AABB* expand(double xa, double ya, double za);
    AABB* grow(double xa, double ya, double za);
    AABB* minmax(AABB* other);
    AABB* cloneMove(double xa, double ya, double za);
    double clipXCollide(AABB* c, double xa);
    double clipYCollide(AABB* c, double ya);
    double clipZCollide(AABB* c, double za);
    bool intersects(AABB* c);
    bool intersectsInner(AABB* c);
    AABB* move(double xa, double ya, double za);
    bool intersects(double x02, double y02, double z02, double x12, double y12,
                    double z12);
    bool contains(Vec3* p);
    bool containsIncludingLowerBound(Vec3* p);  // 4J Added
    double getSize();
    AABB* shrink(double xa, double ya, double za);
    AABB* copy();
    HitResult* clip(Vec3* a, Vec3* b);
    bool containsX(Vec3* v);
    bool containsY(Vec3* v);
    bool containsZ(Vec3* v);
    void set(AABB* b);
    std::wstring toString();
};