// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-==-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= //
//
//  Project:   Talina Gaming System (TgS) (∂)
//  File:      TgS Collision - Box [Util].inl
//  Author:    Andrew Aye (EMail: andrew.aye@gmail.com, Web: http://www.andrewaye.com) 
//  Version:   3.11
//
// ------------------------------------------------------------------------------------------------------------------------------ //
//
//  Copyright: © 2002-2008, Andrew Aye.  All Rights Reserved.
//
//  This software is free for non-commercial use. Redistribution and use in source and binary forms, with or without modification,
//  are permitted provided that the following conditions are met: 
//    Redistributions of source code must retain this copyright notice, this list of conditions and the following disclaimers. 
//    Redistributions in binary form must reproduce this copyright notice, this list of conditions and the following
//      disclaimers in the documentation and other materials provided with the distribution. 
//
//  Neither the names of the copyright owner nor the names of its contributors may be used to endorse or promote products derived
//  from this software without specific prior written permission. 
//
//  The intellectual property rights of the algorithms used reside with Andrew Aye.  You may not use this software, in whole or
//  in part, in support of any commercial product without the express written consent of the author.
//
//  There is no warranty or other guarantee of fitness of this software for any purpose. It is provided solely "as is".
//
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-==-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= //
#if !defined(_TGS_COLLISION_BOX_UTIL_INL_)
#define _TGS_COLLISION_BOX_UTIL_INL_
#pragma once

// ============================================================================================================================== //

// tgBX0        Box (Input)
// i0           An index to indicate which face of the box is to perform the clipping operation. (Input)

// tgCL         Container of points resulting from the clip operation. (Output)

// ============================================================================================================================== //




namespace TGS { // START TGS ///////////////////////////////////////////////////////////////////////////////////////////////////////
namespace COL { // START COL ///////////////////////////////////////////////////////////////////////////////////////////////////////

// ============================================================================================================================== //

template <typename TYPE, int DIM> TgFORCEINLINE
TgRESULT F_Clip( PC_(CLIP_LIST,DIM) ptgCL, CR_(BOX,DIM) tgBX0, C_TgINT i0 )
{
    T_(RECTANGLE,DIM)                   tgFace;

    switch (i0) {
        case 0:
            tgFace.Set(
                tgBX0.Calc_Point( tgBX0.Query_Extent0(), tgBX0.Query_Extent1(), tgBX0.Query_Extent2() ),
                MATH::F_MUL( -tgBX0.Query_Extent1(), tgBX0.Query_AxisUnit1() ),
                MATH::F_MUL( -tgBX0.Query_Extent2(), tgBX0.Query_AxisUnit2() ),
                tgBX0.Query_AxisUnit0()
            ); break;
        case 1:
            tgFace.Set(
                tgBX0.Calc_Point( tgBX0.Query_Extent0(), tgBX0.Query_Extent1(), tgBX0.Query_Extent2() ),
                MATH::F_MUL( -tgBX0.Query_Extent0(), tgBX0.Query_AxisUnit0() ),
                MATH::F_MUL( -tgBX0.Query_Extent2(), tgBX0.Query_AxisUnit2() ),
                tgBX0.Query_AxisUnit1()
            ); break;
        case 2:
            tgFace.Set(
                tgBX0.Calc_Point( tgBX0.Query_Extent0(), tgBX0.Query_Extent1(), tgBX0.Query_Extent2() ),
                MATH::F_MUL( -tgBX0.Query_Extent0(), tgBX0.Query_AxisUnit0() ),
                MATH::F_MUL( -tgBX0.Query_Extent1(), tgBX0.Query_AxisUnit1() ),
                tgBX0.Query_AxisUnit2()
            ); break;
        default:
            TgASSERT( TgFALSE );
            return (TgFALSE);
    };

    return (F_Clip( ptgCL, tgFace ));
};


// ============================================================================================================================== //

}; // END COL //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
}; // END TGS //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
#endif ////    END    //////////////////////////////////////////////////////////////////////////////////////////////////////////////