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// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-==-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= //
//
//  Project:   Talina Gaming System (TgS) (∂)
//  File:      TgS Collision - Sphere.cpp
//  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".
//
// =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-==-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= //





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

// ============================================================================================================================== //
//  Functions used internally by the system
// ============================================================================================================================== //

TgVOID Unit_Test_Collision_Sphere() //« Used to confirm the instantiation of standard functions and compile time valid.
{
    TgF4VECTOR                          tvS0 = TgF4VECTOR::ZERO;
    TgF4DELTA                           tgDT;

    TgF4LINE                            tgLN0;
    TgF4RAY                             tgRY0;
    TgF4SEGMENT                         tgSG0;

    TgF4PLANE                           tgPN0;
    TgF4SPHERE                          tgSP0;

    TgF4ETRI                            tgET0;
    TgF4CTRI                            tgCT0;
    TgF4STRI                            tgST0;

    TgF4VECTOR                          tvRT0;
    TgFLOAT32                           tyRT0;

    TgF4CONTACT_PACKET                  tgPK;
    TgF4CLIP_LIST                       tgCL;

    



    F_DistSq( tgSP0, tvS0 );
    F_DistSq( tgSP0, tgLN0 );
    F_DistSq( tgSP0, tgRY0 );
    F_DistSq( tgSP0, tgSG0 );
    F_DistSq( tgSP0, tgSP0 );
    F_DistSq( tgSP0, tgET0 );
    F_DistSq( tgSP0, tgPN0 );

    F_Dist( tgSP0, tvS0 );
    F_Dist( tgSP0, tgLN0 );
    F_Dist( tgSP0, tgRY0 );
    F_Dist( tgSP0, tgSG0 );
    F_Dist( tgSP0, tgSP0 );
    F_Dist( tgSP0, tgET0 );
    F_Dist( tgSP0, tgPN0 );



    F_ClosestSq( &tvRT0, tgSP0, tvS0 );
    F_ClosestSq( &tvRT0, &tvRT0, tgSP0, tgLN0 );
    F_ClosestSq( &tvRT0, &tvRT0, tgSP0, tgRY0 );
    F_ClosestSq( &tvRT0, &tvRT0, tgSP0, tgSG0 );
    F_ClosestSq( &tvRT0, &tvRT0, tgSP0, tgSP0 );
    F_ClosestSq( &tvRT0, &tvRT0, tgSP0, tgET0 );
    F_ClosestSq( &tvRT0, &tvRT0, tgSP0, tgPN0 );

    F_Closest( &tvRT0, tgSP0, tvS0 );
    F_Closest( &tvRT0, &tvRT0, tgSP0, tgLN0 );
    F_Closest( &tvRT0, &tvRT0, tgSP0, tgRY0 );
    F_Closest( &tvRT0, &tvRT0, tgSP0, tgSG0 );
    F_Closest( &tvRT0, &tvRT0, tgSP0, tgSP0 );
    F_Closest( &tvRT0, &tvRT0, tgSP0, tgET0 );
    F_Closest( &tvRT0, &tvRT0, tgSP0, tgPN0 );



    F_ClosestSq( &tvRT0, &tyRT0, tgSP0, tgLN0 );
    F_ClosestSq( &tvRT0, &tyRT0, tgSP0, tgRY0 );
    F_ClosestSq( &tvRT0, &tyRT0, tgSP0, tgSG0 );
    F_ClosestSq( &tvRT0, &tyRT0, &tyRT0, tgSP0, tgET0 );

    F_Closest( &tvRT0, &tyRT0, tgSP0, tgLN0 );
    F_Closest( &tvRT0, &tyRT0, tgSP0, tgRY0 );
    F_Closest( &tvRT0, &tyRT0, tgSP0, tgSG0 );
    F_Closest( &tvRT0, &tyRT0, &tyRT0, tgSP0, tgET0 );



    F_Contact_Test( tgSP0, tgLN0 );
    F_Contact_Test( tgSP0, tgRY0 );
    F_Contact_Test( tgSP0, tgSG0 );
    F_Contact_Test( tgSP0, tgSP0, tvS0, 1.0F );
    F_Contact_Test( tgSP0, tgSP0 );
    F_Contact_Test( tgSP0, tgET0 );
    F_Contact_Test( tgSP0, tgPN0 );



    F_Contact_Intersect( &tgPK, tgSP0, tgLN0 );
    F_Contact_Intersect( &tgPK, tgSP0, tgRY0 );
    F_Contact_Intersect( &tgPK, tgSP0, tgSG0 );



    F_Contact_Penetrate( &tgPK, tvS0, tgSP0 );
    F_Contact_Penetrate( &tgPK, tgLN0, tgSP0 );
    F_Contact_Penetrate( &tgPK, tgRY0, tgSP0 );
    F_Contact_Penetrate( &tgPK, tgSG0, tgSP0 );
    F_Contact_Penetrate( &tgPK, tgSP0, tgSP0 );
    F_Contact_Penetrate( &tgPK, tgCT0, tgSP0 );
    F_Contact_Penetrate( &tgPK, tgPN0, tgSP0 );
    F_Contact_Penetrate( &tgPK, tgSP0, tgPN0 );



    F_Contact_Sweep( &tgPK, &tyRT0, tvS0, tgSP0, tgDT );
    F_Contact_Sweep( &tgPK, &tyRT0, tgSP0, tvS0, tgDT );
    F_Contact_Sweep( &tgPK, &tyRT0, tgLN0, tgSP0, tgDT );
    F_Contact_Sweep( &tgPK, &tyRT0, tgRY0, tgSP0, tgDT );
    F_Contact_Sweep( &tgPK, &tyRT0, tgSG0, tgSP0, tgDT );
    F_Contact_Sweep( &tgPK, &tyRT0, tgSP0, tgSP0, tgDT );
    F_Contact_Sweep( &tgPK, &tyRT0, tgST0, tgSP0, tgDT );
    F_Contact_Sweep( &tgPK, &tyRT0, tgPN0, tgSP0, tgDT );



    F_Internal_Penetrate( &tgPK, tvS0, tgSP0, tvS0, 1.0F );
    F_Internal_Penetrate( &tgPK, tgCT0, tgSP0 );



    F_Clip( &tyRT0,&tyRT0, tgSP0, tgLN0 );
    F_Clip( &tyRT0,&tyRT0, tgSP0, tgRY0 );
    F_Clip( &tyRT0,&tyRT0, tgSP0, tgSG0 );

    F_Clip( &tgCL, tgSP0, tgLN0 );
    F_Clip( &tgCL, tgSP0, tgRY0 );
    F_Clip( &tgCL, tgSP0, tgSG0 );

};




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

}; // END COL //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
}; // END TGS //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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