pure as3 colour wheel

Colour wheel Vector
By Lewis Cowles
Pure AS3 Very Very Fast way to create a colour wheel, 
extremely fast algorithm	to use this in your own works 
you must leave the contextMenu Alone and if your 
application is commercial there will be a royalty fee
you may only use if you have my express written consent
by snailmail(standard post) or e-mail

by lewis_c1986 13 Apr 2010

Tags

ColorTransform actionscript3 basildon color colour cowles efecto, england essex get-it-dun lewis pixel rgb wheel
Embed

/**
 * Copyright lewis_c1986 ( http://wonderfl.net/user/lewis_c1986 )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/8eNq
 */

/*
	Colour wheel Vector
	By Lewis Cowles
	Pure AS3 Very Very Fast way to create a colour wheel, 
	extremely fast algorithm	to use this in your own works 
	you must leave the contextMenu Alone and if your 
	application is commercial there will be a royalty fee
	you may only use if you have my express written consent
	by snailmail(standard post) or e-mail
	
*/
package
{
	import flash.display.*;
	import flash.geom.Matrix;
	import flash.geom.Rectangle;
	
	import flash.ui.ContextMenu;
	import flash.ui.ContextMenuItem;
	import flash.events.ContextMenuEvent;
	import flash.net.*;
	import flash.text.*;	
	import flash.events.*;
	public class ColorWheel extends MovieClip
	{
		private var txtBoxes:Array= [ new TextField(), new TextField(), new TextField(), new TextField() ];
		public function ColorWheel(_radius:Number = 14)
		{
			txtBoxes[0].autoSize = "none";
			txtBoxes[0].background = true;
			txtBoxes[0].backgroundColor = 0x000000;
			txtBoxes[0].width = 50;
			txtBoxes[0].height = 50;
			
			var menu:ContextMenu = new ContextMenu();
			menu.hideBuiltInItems();
			menu.customItems.push(new ContextMenuItem("Created By Lewis Cowles", true, true));
			menu.customItems[0].addEventListener(ContextMenuEvent.MENU_ITEM_SELECT, function():void{
				navigateToURL(new URLRequest("http://lewiscowles.blogspot.com/"), "_blank");
			});
			contextMenu = menu;
			var sprite:Sprite = new Sprite();
			//this is for wonderFL testing only
			_radius = ( stage.stageWidth / 2 ) - 2; // take this line out when using in your own apps
			x += 2;
			y += 2;
			var shape:Shape = new Shape();
			
			
			for (var i:Number = 0; i < 360;i+= 0.1)
			{
				var _radians:Number = i * (Math.PI / 180);

				var destX:Number = (_radius * Math.cos(_radians));
				var destY:Number = (_radius * Math.sin(_radians)) ;
			
				var rComponent:Number = Math.cos(_radians) * 127 + 128 << 16;
				var gComponent:Number = Math.cos(_radians + 2 * Math.PI / 3) * 127 + 128 << 8;
				var bComponent:Number = Math.cos(_radians + 4 * Math.PI / 3) * 127 + 128;
 
				var Color:Number  = rComponent | gComponent | bComponent;
			
				shape.graphics.lineStyle(1, Color, 1, false, LineScaleMode.NONE, CapsStyle.NONE);
				shape.graphics.moveTo(_radius, _radius);
				shape.graphics.lineTo(destX+_radius, destY+_radius);
			}
			addChild(sprite);
			sprite.addChild(shape);
			addChild(txtBoxes[0]);
			
			addEventListener(Event.ENTER_FRAME, function(e:Event):void
			{
				var _radians:Number = Math.atan2(mouseY-_radius, mouseX-_radius);
				var rComponent:Number = Math.cos(_radians) * 127 + 128 << 16;
				var gComponent:Number = Math.cos(_radians + 2 * Math.PI / 3) * 127 + 128 << 8;
				var bComponent:Number = Math.cos(_radians + 4 * Math.PI / 3) * 127 + 128;
 				var bgColor:uint = rComponent | gComponent | bComponent;
 				txtBoxes[0].backgroundColor = bgColor;
 				txtBoxes[0].text = "";
 				var hexString:String = bgColor.toString(16);
 				if(hexString.length < 6)
 				{
 					for(var diff:Number = 6-hexString.length; diff>0; diff--)
					{
						hexString = "0"+hexString;
					}
 				}
 				txtBoxes[0].text = "#" + hexString;
 				
			});
		}
	}
}