sceneobject3d.as

一个2D基于verlet的Flash物理引擎。它用AS3编写而成。Fisix的目标是应用到游戏等计算量很大的实时应用中。尽管flash比c/c++要慢,很棒的物理引擎

/*
 *  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 • blog.papervision3d.org • 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.
 */

// ______________________________________________________________________
//                                                          SceneObject3D

package org.papervision3d.core.proto
{
	import org.papervision3d.Papervision3D;
	import org.papervision3d.core.animation.core.AnimationEngine;
	import org.papervision3d.materials.utils.MaterialsList;
	import org.papervision3d.objects.DisplayObject3D;
	
	/**
	* The SceneObject3D class is the base class for all scenes.
	* <p/>
	* A scene is the place where objects are placed, it contains the 3D environment.
	* <p/>
	* The scene manages all objects rendered in Papervision3D. It extends the DisplayObjectContainer3D class to arrange the display objects.
	* <p/>
	* SceneObject3D is an abstract base class; therefore, you cannot call SceneObject3D directly.
	*/
	public class SceneObject3D extends DisplayObjectContainer3D
	{		
		// __________________________________________________________________________
		//                                                                     STATIC
	
	
		/**
		* It contains a list of DisplayObject3D objects in the scene.
		*/
		public var objects :Array;
	
		/**
		* It contains a list of materials in the scene.
		*/
		public var materials :MaterialsList;
		
		/**
		 * A boolean flag indicating whether or not to use animation.
		 */
		public var animated:Boolean = false;
	
		/**
		 * A reference to the AnimationEngine. Only available if the scene3d is set to animated. @see org.papervision3d.animation.core.AnimationEngine 
		 */
		public var animationEngine:AnimationEngine;
		
		
		
		// ___________________________________________________________________ N E W
		//
		// NN  NN EEEEEE WW    WW
		// NNN NN EE     WW WW WW
		// NNNNNN EEEE   WWWWWWWW
		// NN NNN EE     WWW  WWW
		// NN  NN EEEEEE WW    WW
	
		/**
		* The SceneObject3D class lets you create scene classes.
		*
		* @param	container	The Sprite that you draw into when rendering. If not defined, each object must have it's own private container.
		*/
		public function SceneObject3D()
		{
			this.objects = new Array();
			this.materials = new MaterialsList();
	
			Papervision3D.log( Papervision3D.NAME + " " + Papervision3D.VERSION + " (" + Papervision3D.DATE + ")\n" );
			this.root = this;
		}
	
		// ___________________________________________________________________ A D D C H I L D
		//
		//   AA   DDDDD  DDDDD   CCCC  HH  HH II LL     DDDDD
		//  AAAA  DD  DD DD  DD CC  CC HH  HH II LL     DD  DD
		// AA  AA DD  DD DD  DD CC     HHHHHH II LL     DD  DD
		// AAAAAA DD  DD DD  DD CC  CC HH  HH II LL     DD  DD
		// AA  AA DDDDD  DDDDD   CCCC  HH  HH II LLLLLL DDDDD
	
		/**
		* Adds a child DisplayObject3D instance to the scene.
		*
		* If you add a GeometryObject3D symbol, a new DisplayObject3D instance is created.
		*
		* [TODO: If you add a child object that already has a different display object container as a parent, the object is removed from the child list of the other display object container.]
		*
		* @param	child	The GeometryObject3D symbol or DisplayObject3D instance to add as a child of the scene.
		* @param	name	An optional name of the child to add or create. If no name is provided, the child name will be used.
		* @return	The DisplayObject3D instance that you have added or created.
		*/
		public override function addChild( child:DisplayObject3D, name:String=null ):DisplayObject3D
		{
			var newChild:DisplayObject3D =	super.addChild( child, name );
			child.scene = this;
			this.objects.push( newChild );
			return newChild;
		}
	
		/**
		* Removes the specified child DisplayObject3D instance from the child and object list of the scene.
		* </p>
		* [TODO: The parent property of the removed child is set to null, and the object is garbage collected if no other references to the child exist.]
		* </p>
		* The garbage collector is the process by which Flash Player reallocates unused memory space. When a variable or object is no longer actively referenced or stored somewhere, the garbage collector sweeps through and wipes out the memory space it used to occupy if no other references to it exist.
		* </p>
		* @param	child	The DisplayObject3D instance to remove.
		* @return	The DisplayObject3D instance that you pass in the child parameter.
		*/
		public override function removeChild( child:DisplayObject3D ):DisplayObject3D
		{
			super.removeChild( child );
	
			for (var i:int = 0; i < this.objects.length; i++ )
			{
				if (this.objects[i] === child )
				{
					this.objects.splice(i, 1);
					return child;
				}
			}
			return child;
		}
				
			
	}
}