BoxColManager.hh

#pragma once
 
#include <egg/core/BitFlag.hh>
#include <egg/math/Vector.hh>
 
namespace Host {
 
class Context;
 
} // namespace Host
 
namespace Kart {
 
class KartObject;
 
} // namespace Kart
 
namespace Field {
 
class ObjectCollidable;
class ObjectDrivable;
 
enum class eBoxColFlag {
    Driver = 0,
    Object = 3,
    Drivable = 4,
    PermRecalcAABB = 8, 
    Intangible = 9,     
    Active = 10,
    TempRecalcAABB = 11, 
};
typedef EGG::TBitFlag<u32, eBoxColFlag> BoxColFlag;
 
struct BoxColUnit {
    BoxColUnit();
    ~BoxColUnit();
 
    void init(f32 radius, f32 maxSpeed, const EGG::Vector3f *pos, const BoxColFlag &flag,
            void *userData);
    void makeInactive();
    void resize(f32 radius, f32 maxSpeed);
    void reinsert();
    void search(const BoxColFlag &flag);
 
    const EGG::Vector3f *m_pos;
    f32 m_radius;
    f32 m_range;
    BoxColFlag m_flag;
    void *m_userData;
    s16 m_highPointIdx;
    s16 m_lowPointIdx;
    f32 m_xMax;
    f32 m_xMin;
};
 
struct BoxColLowPoint {
    f32 z;
    u8 highPoint;
    u8 unitID;
};
 
struct BoxColHighPoint {
    f32 z;
    u8 lowPoint;
    u8 minLowPoint;
};
 
class BoxColManager : EGG::Disposer {
    friend class Host::Context;
 
public:
    BoxColManager();
    ~BoxColManager() override;
 
    void clear();
    void calc();
 
    [[nodiscard]] ObjectCollidable *getNextObject();
    [[nodiscard]] ObjectDrivable *getNextDrivable();
 
    void resetIterators();
 
    [[nodiscard]] BoxColUnit *insertDriver(f32 radius, f32 maxSpeed, const EGG::Vector3f *pos,
            bool alwaysRecalc, Kart::KartObject *kartObject);
    [[nodiscard]] BoxColUnit *insertObject(f32 radius, f32 maxSpeed, const EGG::Vector3f *pos,
            bool alwaysRecalc, void *userData);
    [[nodiscard]] BoxColUnit *insertDrivable(f32 radius, f32 maxSpeed, const EGG::Vector3f *pos,
            bool alwaysRecalc, void *userData);
 
    void reinsertUnit(BoxColUnit *unit);
    void search(BoxColUnit *unit, const BoxColFlag &flag);
    void search(f32 radius, const EGG::Vector3f &pos, const BoxColFlag &flag);
 
    [[nodiscard]] bool isSphereInSpatialCache(f32 radius, const EGG::Vector3f &pos,
            const BoxColFlag &flag) const;
 
    static BoxColManager *CreateInstance();
    static void DestroyInstance();
    [[nodiscard]] static BoxColManager *Instance();
 
private:
    [[nodiscard]] void *getNextImpl(s32 &id, const BoxColFlag &flag);
    void iterate(s32 &iter, const BoxColFlag &flag);
    [[nodiscard]] BoxColUnit *insert(f32 radius, f32 maxSpeed, const EGG::Vector3f *pos,
            const BoxColFlag &flag, void *userData);
    void remove(BoxColUnit *&pUnit);
    void searchImpl(BoxColUnit *unit, const BoxColFlag &flag);
    void searchImpl(f32 radius, const EGG::Vector3f &pos, const BoxColFlag &flag);
 
    static constexpr size_t MAX_UNIT_COUNT = 0x100;
 
    std::array<BoxColHighPoint, MAX_UNIT_COUNT> m_highPoints; 
    std::array<BoxColLowPoint, MAX_UNIT_COUNT> m_lowPoints;   
    std::array<BoxColUnit, MAX_UNIT_COUNT> m_unitPool;        
    std::array<BoxColUnit *, MAX_UNIT_COUNT> m_units;         
 
    std::array<u32, MAX_UNIT_COUNT> m_unitIDs;
 
    s32 m_unitCount;
    s32 m_nextUnitID;
    s32 m_nextObjectID;
    s32 m_nextDrivableID;
    s32 m_maxID;
    BoxColUnit *m_cacheQueryUnit;
    EGG::Vector3f m_cachePoint;
    f32 m_cacheRadius;
    BoxColFlag m_cacheFlag;
 
    static BoxColManager *s_instance;
};
 
} // namespace Field