/*
  * Copyright (c) 2006-2007 Erin Catto 
* This software is provided 'as-is', without any express or implied
* warranty.  In no event will the authors be held liable for any damages
* arising from the use of this software.
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software. If you use this software
* in a product, an acknowledgment in the product documentation would be
* appreciated but is not required.
* 2. Altered source versions must be plainly marked, and must not be
* misrepresented the original software.
* 3. This notice may not be removed or altered from any source distribution.
*/

// We use contact ids to facilitate warm starting.
var b2ContactID = Class.create();
b2ContactID.prototype = 
{
        initialize: function(){
                // initialize instance variables for references
                this.features = new Features();
                //

                this.features._m_id = this;

        },
        Set: function(id){
                this.set_key(id._key);
        },
        Copy: function(){
                var id = new b2ContactID();
                id.set_key(this._key);
                return id;
        },
        get_key: function(){
                return this._key;
        },
        set_key: function(value) {
                this._key = value;
                this.features._referenceFace = this._key & 0x000000ff;
                this.features._incidentEdge = ((this._key & 0x0000ff00) >> 8) & 0x000000ff;
                this.features._incidentVertex = ((this._key & 0x00ff0000) >> 16) & 0x000000ff;
                this.features._flip = ((this._key & 0xff000000) >> 24) & 0x000000ff;
        },
        features: new Features(),
        _key: 0};



  *
  * This software is provided 'as-is', without any express or implied
  * warranty.  In no event will the authors be held liable for any damages
  * arising from the use of this software.
  * Permission is granted to anyone to use this software for any purpose,
  * including commercial applications, and to alter it and redistribute it
  * freely, subject to the following restrictions:
  * 1. The origin of this software must not be misrepresented; you must not
  * claim that you wrote the original software. If you use this software
  * in a product, an acknowledgment in the product documentation would be
  * appreciated but is not required.
  * 2. Altered source versions must be plainly marked, and must not be
  * misrepresented the original software.
  * 3. This notice may not be removed or altered from any source distribution.
  */
  
  // We use contact ids to facilitate warm starting.
  var b2ContactID = Class.create();
  b2ContactID.prototype = 
  {
          initialize: function(){
                  // initialize instance variables for references
                  this.features = new Features();
                  //
  
                  this.features._m_id = this;
  
          },
          Set: function(id){
                  this.set_key(id._key);
          },
          Copy: function(){
                  var id = new b2ContactID();
                  id.set_key(this._key);
                  return id;
          },
          get_key: function(){
                  return this._key;
          },
          set_key: function(value) {
                  this._key = value;
                  this.features._referenceFace = this._key & 0x000000ff;
                  this.features._incidentEdge = ((this._key & 0x0000ff00) >> 8) & 0x000000ff;
                  this.features._incidentVertex = ((this._key & 0x00ff0000) >> 16) & 0x000000ff;
                  this.features._flip = ((this._key & 0xff000000) >> 24) & 0x000000ff;
          },
          features: new Features(),
          _key: 0};