Mouse3D

Kind of class:	public class
Package:	org.papervision3d.core.utils
Inherits from:	DisplayObject3D < DisplayObjectContainer3D < EventDispatcher
Classpath:	org.papervision3d.core.utils.Mouse3D
File last modified:	Sunday, 02 March 2008, 15:23:34

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/*
 *  PAPER    ON   ERVIS  NPAPER ISION  PE  IS ON  PERVI IO  APER  SI  PA
 *  AP  VI  ONPA  RV  IO PA     SI  PA ER  SI NP PE     ON AP  VI ION AP
 *  PERVI  ON  PE VISIO  APER   IONPA  RV  IO PA  RVIS  NP PE  IS ONPAPE
 *  ER     NPAPER IS     PE     ON  PE  ISIO  AP     IO PA ER  SI NP PER
 *  RV     PA  RV SI     ERVISI NP  ER   IO   PE VISIO  AP  VISI  PA  RV3D
 *  ______________________________________________________________________
 *  papervision3d.org ï¿½ blog.papervision3d.org ï¿½ osflash.org/papervision3d
 */

/*
 * Copyright 2006 (c) Carlos Ulloa Matesanz, noventaynueve.com.
 *
 * Permission is hereby granted, free of charge, to any person
 * obtaining a copy of this software and associated documentation
 * files (the "Software"), to deal in the Software without
 * restriction, including without limitation the rights to use,
 * copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following
 * conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 */

/**
* @author De'Angelo Richardson 
*/
package org.papervision3d.core.utils
{
    import org.papervision3d.core.geom.renderables.Triangle3D;
    import org.papervision3d.core.math.Matrix3D;
    import org.papervision3d.core.math.Number3D;
    import org.papervision3d.core.render.data.RenderHitData;
    import org.papervision3d.objects.DisplayObject3D;


    public class Mouse3D extends DisplayObject3D
    {
        static private var UP                                 :Number3D = new Number3D(0, 1, 0);
        
        static public var enabled                            :Boolean = false;
        
        public function Mouse3D(initObject:Object=null):void
        {
            
        }
        
        public function updatePosition( rhd:RenderHitData ):void
        {            
            var face3d:Triangle3D = rhd.renderable as Triangle3D;
            
            var position:Number3D = new Number3D(0, 0, 0);
            var target:Number3D = new Number3D(face3d.faceNormal.x, face3d.faceNormal.y, face3d.faceNormal.z);
                
            var zAxis:Number3D = Number3D.sub(target, position);
            zAxis.normalize();
                
            if (zAxis.modulo > 0.1)
            {
                var xAxis:Number3D = Number3D.cross(zAxis, UP);
                xAxis.normalize();
                
                var yAxis:Number3D = Number3D.cross(zAxis, xAxis);
                yAxis.normalize();
                
                var look:Matrix3D = this.transform;
                    
                look.n11 = xAxis.x;
                look.n21 = xAxis.y;
                look.n31 = xAxis.z;
                
                look.n12 = -yAxis.x;
                look.n22 = -yAxis.y;
                look.n32 = -yAxis.z;
                
                look.n13 = zAxis.x;
                look.n23 = zAxis.y;
                look.n33 = zAxis.z;
            }
            
            var m:Matrix3D = Matrix3D.IDENTITY;
            this.transform = Matrix3D.multiply(face3d.instance.world, look);
            
            x = rhd.x;
            y = rhd.y;
            z = rhd.z;
        }
    }
}