water

...
@author lizhi

by lizhi 26 Nov 2014

Embed

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

package  
{
	import flash.display.Bitmap;
	import flash.display.BitmapData;
	import flash.display.Sprite;
	import flash.events.Event;
	import flash.utils.getTimer;
	/**
	 * ...
	 * @author lizhi
	 */
	public class TestWater extends Sprite
	{
		private var b:BitmapData;
		private var bc:BitmapData;
		public function TestWater() 
		{
			b = new BitmapData(200, 200, false);
			for (var i:int = 0; i < b.height; i++){
				for (var k:int = 0; k < b.width; k++){
					b.setPixel(k,i, (i^k)<<16 | (i ^ k) << 8 | (i^k));
				}
			}
			bc = b.clone();
			addChild(new Bitmap(b));
			addEventListener(Event.ENTER_FRAME, enterFrame);
		}
		
		private function enterFrame(e:Event):void 
		{
			var t:Number = getTimer()/400;
			var scale:Number = 4;
			var wave:Number = Math.PI * 6 / b.height;
			b.lock();
			for (var x:int = 0; x < b.width;x++ ) {
				for (var y:int = 0; y < b.height; y++ ) {
					var offsetX:Number = Math.sin(y*wave+t)*scale+Math.sin(y*wave*.7+t*2.4)*scale;
					var offsetY:Number = Math.sin(x*wave+t)*scale+Math.sin(x*wave*1.4+t*4.4)*scale;
					b.setPixel(x, y, bc.getPixel(x+offsetX,y+offsetY));
				}
			}
			b.unlock();
		}
		
	}

}