forked from: flash on 2010-11-24
/**
* Copyright bradsedito ( http://wonderfl.net/user/bradsedito )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/574v
*/
// forked from sliz's flash on 2010-11-24
package {
import flash.display.Bitmap;
import flash.display.BitmapData;
import flash.display.Sprite;
import flash.events.Event;
import flash.events.MouseEvent;
import flash.geom.Point;
/**
* 对http://wonderfl.net/c/bPbw做了点改动
* @author sliz http://game-develop.net/blog/
*/
public class FlashTest extends Sprite {
public function FlashTest(){
w = 200;
vectormap = new BitmapData(w, w);
bmpdata = new BitmapData(w, w, false, 0);
addChild(new Bitmap(bmpdata));
stage.addEventListener(Event.ENTER_FRAME, reset);
}
private var vectormap:BitmapData;
private var bmpdata:BitmapData;
private var oy:int = 0;
private var w:int;
private function reset(e:Event):void {
vectormap.perlinNoise(w * .5, w * .5, 3, 1, false, true, 7, false, [new Point(0, oy++)]);
bmpdata.fillRect(bmpdata.rect, 0);
for (var y:int = 0; y < vectormap.height; y++){
for (var x:int = 0; x < vectormap.width; x++){
var px:uint = vectormap.getPixel(x, y);
var r:int = px >> 16 & 0xFF;
var g:int = px >> 8 & 0xFF;
var b:int = px & 0xFF;
var tx:int = x + (g / 0xFF - .5) * w;
var ty:int = y + (b / 0xFF - .5) * w;
if (ty < 0 || ty >= bmpdata.height || tx < 0 || tx >= bmpdata.width)
continue;
var col:uint = bmpdata.getPixel(tx, ty);
col += 0x010101 * (int)(r * .2);
if (col > 0xFFFFFF)
col = 0xFFFFFF;
bmpdata.setPixel(tx, ty, col);
}
}
}
}
}