iterator.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

/**
 * DATA STRUCTURES FOR GAME PROGRAMMERS
 * Copyright (c) 2007 Michael Baczynski, http://www.polygonal.de
 *
 * 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.
 */
package de.polygonal.ds
{
	/**
	 * A 'java-style' iterator interface.
	 */
	public interface Iterator
	{
		/**
		 * Retrieves the current item and moves
		 * the iterator to the next item in the sequence.
		 */
		function next():*
		
		/**
		 * Checks if the next item exists.
		 * 
		 * @return True if a next item exists, otherwise false.
		 */
		function hasNext():Boolean
		
		/**
		 * Moves the iterator to the first item
		 * in the sequence.
		 */
		function start():void
		
		/**
		 * Grants access to the current item being
		 * referenced by the iterator. This provides
		 * a quick way to read or write the current data.
		 */
		function get data():*
		function set data(obj:*):void
	}
}