// Filename: odeUtil.h
// Created by:  joswilso (27Dec06)
//
////////////////////////////////////////////////////////////////////
//
// PANDA 3D SOFTWARE
// Copyright (c) Carnegie Mellon University.  All rights reserved.
//
// All use of this software is subject to the terms of the revised BSD
// license.  You should have received a copy of this license along
// with this source code in a file named "LICENSE."
//
////////////////////////////////////////////////////////////////////

#ifndef ODEUTIL_H
#define ODEUTIL_H

#include "pandabase.h"
#include "typedObject.h"
#include "luse.h"

#include "ode_includes.h"
#include "odeJointCollection.h"
#include "odeCollisionEntry.h"

#ifdef HAVE_PYTHON
  #include "py_panda.h"
#endif

class OdeBody;
class OdeJoint;
class OdeGeom;

////////////////////////////////////////////////////////////////////
//       Class : OdeUtil
// Description : 
////////////////////////////////////////////////////////////////////
class EXPCL_PANDAODE OdeUtil {
PUBLISHED:
  static OdeJoint get_connecting_joint(const OdeBody &body1,
                                       const OdeBody &body2);
  static OdeJointCollection get_connecting_joint_list(const OdeBody &body1,
                                                      const OdeBody &body2);
  static int are_connected(const OdeBody &body1,
                           const OdeBody &body2);
  static int are_connected_excluding(const OdeBody &body1,
                                     const OdeBody &body2,
                                     const int joint_type);
  static PT(OdeCollisionEntry) collide(const OdeGeom &geom1, const OdeGeom &geom2,
                                      const short int max_contacts = 150);
#ifdef HAVE_PYTHON
  static int collide2(const OdeGeom &geom1, const OdeGeom &geom2,
                      PyObject* arg, PyObject* callback);
#endif
  static OdeGeom space_to_geom(const OdeSpace &space);

  static dReal OC_infinity;

  // RAU we can't access OC_infinity as constants are not exposed in python
  static dReal get_infinity() {return OC_infinity;};

  static int rand_get_seed() {return dRandGetSeed();};

  static void rand_set_seed(int s) {dRandSetSeed(s);};
  
private:
#ifdef HAVE_PYTHON
  static void near_callback(void*, dGeomID, dGeomID);
  static PyObject* _python_callback;
#endif
};

#endif