metaforce/Runtime/Collision/CCollisionPrimitive.hpp

#pragma once

#include "Collision/CMaterialList.hpp"
#include "CRayCastResult.hpp"
#include "zeus/CAABox.hpp"

#include <functional>

namespace urde
{
class CCollisionPrimitive;
class CMaterialFilter;

class CInternalCollisionStructure
{
public:
    class CPrimDesc
    {
        const CCollisionPrimitive& x0_prim;
        const CMaterialFilter& x4_filter;
        zeus::CTransform x8_xf;
    public:
        CPrimDesc(const CCollisionPrimitive& prim, const CMaterialFilter& filter,
                  const zeus::CTransform& xf)
        : x0_prim(prim), x4_filter(filter), x8_xf(xf) {}
        const CCollisionPrimitive& GetPrim() const { return x0_prim; }
        const CMaterialFilter& GetFilter() const { return x4_filter; }
        const zeus::CTransform& GetTransform() const { return x8_xf; }
    };
private:
    CPrimDesc x0_p0;
    CPrimDesc x38_p1;
public:
    CInternalCollisionStructure(const CPrimDesc& p0, const CPrimDesc& p1)
    : x0_p0(p0), x38_p1(p1) {}
    const CPrimDesc& GetLeft() const { return x0_p0; }
    const CPrimDesc& GetRight() const { return x38_p1; }
};

class COBBTree;
class CCollisionInfo;
class CCollisionInfoList;
class CInternalRayCastStructure;
typedef bool(*ComparisonFunc)(const CInternalCollisionStructure&, CCollisionInfoList&);
typedef bool(*MovingComparisonFunc)(const CInternalCollisionStructure&, const zeus::CVector3f&,
                                    double&, CCollisionInfo&);
typedef bool(*BooleanComparisonFunc)(const CInternalCollisionStructure&);
typedef void(*PrimitiveSetter)(u32);

class CCollisionPrimitive
{
public:
    class Type
    {
        PrimitiveSetter x0_setter;
        const char* x4_info;

    public:
        Type() = default;
        Type(PrimitiveSetter setter, const char* info)
        : x0_setter(setter), x4_info(info) {}

        const char* GetInfo() const { return x4_info; }
        PrimitiveSetter GetSetter() const { return x0_setter; }
    };

    class Comparison
    {
        ComparisonFunc x0_collider;
        const char* x4_type1;
        const char* x8_type2;

    public:
        Comparison(ComparisonFunc collider, const char* type1, const char* type2)
        : x0_collider(collider), x4_type1(type1), x8_type2(type2)
        {
        }

        ComparisonFunc GetCollider() const { return x0_collider; }
        const char* GetType1() const { return x4_type1; }
        const char* GetType2() const { return x8_type2; }
    };

    class MovingComparison
    {
        MovingComparisonFunc x0_collider;
        const char* x4_type1;
        const char* x8_type2;

    public:
        MovingComparison(MovingComparisonFunc collider, const char* type1, const char* type2)
        : x0_collider(collider), x4_type1(type1), x8_type2(type2)
        {
        }

        MovingComparisonFunc GetCollider() const { return x0_collider; }
        const char* GetType1() const { return x4_type1; }
        const char* GetType2() const { return x8_type2; }
    };

    class BooleanComparison
    {
        BooleanComparisonFunc x0_collider;
        const char* x4_type1;
        const char* x8_type2;

    public:
        BooleanComparison(BooleanComparisonFunc collider, const char* type1, const char* type2)
        : x0_collider(collider), x4_type1(type1), x8_type2(type2)
        {
        }

        BooleanComparisonFunc GetCollider() const { return x0_collider; }
        const char* GetType1() const { return x4_type1; }
        const char* GetType2() const { return x8_type2; }
    };
private:
    CMaterialList x8_material;
    static s32 sNumTypes;
    static bool sInitComplete;
    static bool sTypesAdded;
    static bool sTypesAdding;
    static bool sCollidersAdded;
    static bool sCollidersAdding;
    static std::unique_ptr<std::vector<Type>> sCollisionTypeList;
    static std::unique_ptr<std::vector<ComparisonFunc>> sTableOfCollidables;
    static std::unique_ptr<std::vector<BooleanComparisonFunc>> sTableOfBooleanCollidables;
    static std::unique_ptr<std::vector<MovingComparisonFunc>> sTableOfMovingCollidables;
    static ComparisonFunc sNullCollider;
    static BooleanComparisonFunc sNullBooleanCollider;
    static MovingComparisonFunc sNullMovingCollider;

    static bool InternalCollide(const CInternalCollisionStructure& collision, CCollisionInfoList& list);
    static bool InternalCollideBoolean(const CInternalCollisionStructure& collision);
    static bool InternalCollideMoving(const CInternalCollisionStructure& collision, const zeus::CVector3f& dir,
                                      double& dOut, CCollisionInfo& infoOut);

public:
    CCollisionPrimitive() = default;
    CCollisionPrimitive(const CMaterialList& list);
    virtual u32 GetTableIndex() const = 0;
    virtual void SetMaterial(const CMaterialList&);
    virtual const CMaterialList& GetMaterial() const;
    virtual zeus::CAABox CalculateAABox(const zeus::CTransform&) const = 0;
    virtual zeus::CAABox CalculateLocalAABox() const = 0;
    virtual FourCC GetPrimType() const = 0;
    virtual ~CCollisionPrimitive() {}
    virtual CRayCastResult CastRayInternal(const CInternalRayCastStructure&) const = 0;
    CRayCastResult CastRay(const zeus::CVector3f& start, const zeus::CVector3f& dir, float length,
                           const CMaterialFilter& filter, const zeus::CTransform& xf) const;

    static bool Collide(const CInternalCollisionStructure::CPrimDesc& prim0,
                        const CInternalCollisionStructure::CPrimDesc& prim1,
                        CCollisionInfoList& list);
    static bool CollideBoolean(const CInternalCollisionStructure::CPrimDesc& prim0,
                               const CInternalCollisionStructure::CPrimDesc& prim1);
    static bool CollideMoving(const CInternalCollisionStructure::CPrimDesc& prim0,
                              const CInternalCollisionStructure::CPrimDesc& prim1,
                              const zeus::CVector3f& dir,
                              double& dOut,
                              CCollisionInfo& infoOut);

    static void InitBeginTypes();
    static void InitAddType(const Type& tp);
    static void InitEndTypes();

    static void InitBeginColliders();
    static void InitAddBooleanCollider(const BooleanComparison& cmp);
    static void InitAddBooleanCollider(BooleanComparisonFunc, const char*, const char*);
    static void InitAddMovingCollider(const MovingComparison& cmp);
    static void InitAddMovingCollider(MovingComparisonFunc, const char*, const char*);
    static void InitAddCollider(const Comparison& cmp);
    static void InitAddCollider(ComparisonFunc, const char*, const char*);
    static void InitEndColliders();

    static void Uninitialize();
};
}