Every frame you get screen caputre of the stage.
* Generate new frame image with using last frames screen capture.
* This is a starting point of recursive generative art.
/**
* Copyright knd ( http://wonderfl.net/user/knd )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/iDYR
*/
// forked from checkmate's fladdict challenge for amateurs
/**
* Every frame you get screen caputre of the stage.
* Generate new frame image with using last frames screen capture.
* This is a starting point of recursive generative art.
*/
package {
import flash.display.Bitmap;
import flash.display.BitmapData;
import flash.display.BlendMode;
import flash.display.Sprite;
import flash.events.Event;
import flash.geom.ColorTransform;
import flash.geom.Matrix;
import flash.geom.Point;
public class Beginner extends Sprite {
/**
* Overwrite this update function.
* Every frame the function is invoked with two bitmaps.
* First one contains reference to the stage bitmap.
* Second one contains static copy of stage.
*/
public var canvas:BitmapData;
public var drawHere:BitmapData;
public var mat:Matrix;
public function update():void{
drawStep();
transformStep();
renderStep();
fadeStep();
}
public function drawStep():void {
//drawHere.setPixel(stage.mouseX, stage.mouseY, 0x11111111);
drawHere.setPixel( Math.random()*480, Math.random()*480, rndHue());
}
public function rndHue():uint{
var rnd : uint = 0x600 * Math.random();
var mod : uint = rnd % 0x200;
if(mod > 0x100) mod = 0x200 - mod;
return rnd<0x100? 0xffff0000|(mod<<8):
rnd<0x200? 0xff00ff00|(mod << 16):
rnd<0x300? 0xff00ff00|mod:
rnd<0x400? 0xff0000ff|(mod << 8):
rnd<0x500? 0xff0000ff|(mod << 16):
0xffff0000|mod ;
}
public function transformStep():void
{
mat = new Matrix(1.005, 0.00, 0.00, 1.005,
Math.random()>0.9? 25-50*Math.random(): -1.2,
Math.random()>0.9? 25-50*Math.random(): -1.2
);
}
public function renderStep():void{
canvas.draw(drawHere, mat, null,BlendMode.LIGHTEN,null,true);
}
public function fadeStep():void
{
canvas.colorTransform(drawHere.rect,
new ColorTransform(
1 ,
1 ,
1 ,
1,
-1 ,
-1 ,
-1 ,
0
)
);
}
/**
* ---------------------------------------
* DO NOT CHANGE FOLLOWING CODES
* DO NOT ACCESS FOLLOWING PROPERTIES DIRECTLY
* ---------------------------------------
*/
private var bitmap:Bitmap;
public function Beginner() {
canvas = new BitmapData(480,480,false,0x000000);
bitmap = new Bitmap(canvas);
addChild(bitmap);
addEventListener(Event.ENTER_FRAME, _update);
}
public function _update(e:Event):void{
if(drawHere)
drawHere.dispose();
drawHere = canvas.clone();
update();
}
}
}