53 lines
1.7 KiB
JavaScript
53 lines
1.7 KiB
JavaScript
/*
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* Copyright (c) 2006-2007 Erin Catto http:
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*
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* This software is provided 'as-is', without any express or implied
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* warranty. In no event will the authors be held liable for any damages
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* arising from the use of this software.
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* Permission is granted to anyone to use this software for any purpose,
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* including commercial applications, and to alter it and redistribute it
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* freely, subject to the following restrictions:
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* 1. The origin of this software must not be misrepresented; you must not
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* claim that you wrote the original software. If you use this software
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* in a product, an acknowledgment in the product documentation would be
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* appreciated but is not required.
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* 2. Altered source versions must be plainly marked, and must not be
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* misrepresented the original software.
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* 3. This notice may not be removed or altered from any source distribution.
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*/
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// We use contact ids to facilitate warm starting.
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var b2ContactID = Class.create();
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b2ContactID.prototype =
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{
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initialize: function(){
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// initialize instance variables for references
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this.features = new Features();
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//
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this.features._m_id = this;
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},
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Set: function(id){
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this.set_key(id._key);
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},
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Copy: function(){
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var id = new b2ContactID();
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id.set_key(this._key);
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return id;
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},
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get_key: function(){
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return this._key;
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},
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set_key: function(value) {
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this._key = value;
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this.features._referenceFace = this._key & 0x000000ff;
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this.features._incidentEdge = ((this._key & 0x0000ff00) >> 8) & 0x000000ff;
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this.features._incidentVertex = ((this._key & 0x00ff0000) >> 16) & 0x000000ff;
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this.features._flip = ((this._key & 0xff000000) >> 24) & 0x000000ff;
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},
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features: new Features(),
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_key: 0};
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