/*****************************************************************************
The Dark Mod GPL Source Code

This file is part of the The Dark Mod Source Code, originally based
on the Doom 3 GPL Source Code as published in 2011.

The Dark Mod Source Code is free software: you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of the License,
or (at your option) any later version. For details, see LICENSE.TXT.

Project: The Dark Mod (http://www.thedarkmod.com/)

******************************************************************************/

/*
===============================================================================

	Trace model vs. polygonal model collision detection.

===============================================================================
*/

#include "precompiled.h"
#pragma hdrstop



#include "CollisionModel_local.h"

/*
===============================================================================

Retrieving contacts

===============================================================================
*/

/*
==================
idCollisionModelManagerLocal::Contacts
==================
*/
int idCollisionModelManagerLocal::Contacts( contactInfo_t *contacts, const int maxContacts, const idVec3 &start, const idVec6 &dir, const float depth,
								const idTraceModel *trm, const idMat3 &trmAxis, int contentMask,
								cmHandle_t model, const idVec3 &origin, const idMat3 &modelAxis ) {
	trace_t results;
	idVec3 end;

	// same as Translation but instead of storing the first collision we store all collisions as contacts
	idCollisionModelManagerLocal::getContacts = true;
	idCollisionModelManagerLocal::contacts = contacts;
	idCollisionModelManagerLocal::maxContacts = maxContacts;
	idCollisionModelManagerLocal::numContacts = 0;
	end = start + dir.SubVec3(0) * depth;
	idCollisionModelManagerLocal::Translation( &results, start, end, trm, trmAxis, contentMask, model, origin, modelAxis );
	if ( dir.SubVec3(1).LengthSqr() != 0.0f ) {
		// FIXME: rotational contacts
	}
	idCollisionModelManagerLocal::getContacts = false;
	idCollisionModelManagerLocal::maxContacts = 0;

	return idCollisionModelManagerLocal::numContacts;
}