/*
* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
* its licensors.
*
* For complete copyright and license terms please see the LICENSE at the root of this
* distribution (the "License"). All use of this software is governed by the License,
* or, if provided, by the license below or the license accompanying this file. Do not
* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
*
*/
// Original file Copyright Crytek GMBH or its affiliates, used under license.

#ifndef CRYINCLUDE_CRYPHYSICS_OVERLAPCHECKS_H
#define CRYINCLUDE_CRYPHYSICS_OVERLAPCHECKS_H
#pragma once

#if ENABLE_CRY_PHYSICS

typedef int (* overlap_check)(const primitive*, const primitive*, class COverlapChecker*);

int default_overlap_check(const primitive*, const primitive*, class COverlapChecker*);
int box_box_overlap_check(const box * box1, const box * box2, class COverlapChecker*);
int box_heightfield_overlap_check(const box * pbox, const heightfield * phf, class COverlapChecker * pOverlapper = 0);
int heightfield_box_overlap_check(const heightfield * phf, const box * pbox, class COverlapChecker * pOverlapper = 0);
int box_voxgrid_overlap_check(const box * pbox, const voxelgrid * phf, class COverlapChecker * pOverlapper = 0);
int voxgrid_box_overlap_check(const voxelgrid * phf, const box * pbox, class COverlapChecker * pOverlapper = 0);
int box_tri_overlap_check(const box * pbox, const triangle * ptri, class COverlapChecker * pOverlapper = 0);
int tri_box_overlap_check(const triangle * ptri, const box * pbox, class COverlapChecker * pOverlapper = 0);
int box_ray_overlap_check(const box * pbox, const ray * pray, class COverlapChecker * pOverlapper = (COverlapChecker*)0);
int ray_box_overlap_check(const ray * pray, const box * pbox, class COverlapChecker * pOverlapper = 0);
int box_sphere_overlap_check(const box * pbox, const sphere * psph, class COverlapChecker * pOverlapper = 0);
int sphere_box_overlap_check(const sphere * psph, const box * pbox, class COverlapChecker * pOverlapper = 0);
int tri_sphere_overlap_check(const triangle * ptri, const sphere * psph, class COverlapChecker * pOverlapper = 0);
int sphere_tri_overlap_check(const sphere * psph, const triangle * ptri, class COverlapChecker * pOverlapper = 0);
int heightfield_sphere_overlap_check(const heightfield * phf, const sphere * psph, class COverlapChecker * pOverlapper = 0);
int sphere_heightfield_overlap_check(const sphere * psph, const heightfield * phf, class COverlapChecker * pOverlapper = 0);
int sphere_sphere_overlap_check(const sphere * psph1, const sphere * psph2, class COverlapChecker * pOverlapper = 0);

quotientf tri_sphere_dist2(const triangle* ptri, const sphere* psph, int& bFace);

class COverlapChecker
{
public:

    COverlapChecker() { Init(); }

    void Init() { iPrevCode = -1; }
    ILINE int Check(int type1, int type2, primitive* prim1, primitive* prim2)
    {
        return table[type1][type2](prim1, prim2, this);
    }
    ILINE int CheckExists(int type1, int type2)
    {
        return table[type1][type2] != default_overlap_check;
    }

    static overlap_check table[NPRIMS][NPRIMS];
    static overlap_check default_function;

    //static COverlapCheckerInit init;

    int iPrevCode;
    Matrix33 Basis21;
    Matrix33 Basis21abs;
};
//extern COverlapChecker g_Overlapper;

#endif // ENABLE_CRY_PHYSICS

#endif // CRYINCLUDE_CRYPHYSICS_OVERLAPCHECKS_H