从AS2到AS3“它去了哪里”setRGB |[mck]

Posted 2021-02-26

I really like the use of constants and the dollar sign ($) in this class. I have only used $ in jQuery to designate objects. Looks like one might use $ in AS3 classes to designate/differentiate passed-in variables from internal method/global vars.

/**
* Color (AS3), version 1.0
*
* Enter description here
*
* <pre>
*  ____                   _      ____
* |  __| _ __ ___    ___ | | __ |__  |
* | |   | '_ ` _   / __|| |/ /    | |
* | |   | | | | | || (__ |   <     | |
* | |__ |_| |_| |_| \___||_|\_  __| |
* |____|                        |____|
*
* </pre>
*
* @class  	: 	Color
* @author 	:  	Matthijs C. Kamstra [mck]
* @version :	1.0 - class creation (AS3)
* @since 	:	11-5-2008 0:22
*
*/
package nl.matthijskamstra.utils {
 
	import flash.display.*;
	import flash.events.*;
	import flash.geom.ColorTransform;
 
	public class Color {
 
		// Constants:
		public static var CLASS_REF = nl.matthijskamstra.utils.Color;
		public static var CLASS_NAME : String = "Color";
		public static var LINKAGE_ID : String = "nl.matthijskamstra.utils.Color";	
 
		/**
		* Constructor
		*
		* @usage   	import nl.matthijskamstra.utils.Color; // import
		*			var __Color:Color = new Color ( this );
		* @param	$targetObj		a reference to a movie clip or object
		*/
		public function Color(   $targetObj:DisplayObject=null, $colorValue:uint = 0xff3333) {
			// trace ( LINKAGE_ID + ' class instantiated');
			if ($targetObj == null) { return; }
			var newColorTransform:ColorTransform = $targetObj.transform.colorTransform;
			newColorTransform.color = $colorValue;
			$targetObj.transform.colorTransform = newColorTransform;
		}
 
		//////////////////////////////////////// Static ///////////////////////////////////////
 
		static public function setRGB(  $targetObj:DisplayObject = null, $colorValue:uint = 0xff3333) {
			return new Color ( $targetObj, $colorValue);
		}
 
	} // end class
 
} // end package