/**
* Copyright curvedstraightline ( http://wonderfl.net/user/curvedstraightline )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/nYtQ
*/
package {
import flash.display.Sprite;
import flash.display.Bitmap;
import flash.display.BitmapData;
import flash.display.BlendMode;
import flash.display.Shape;
import flash.events.Event;
import flash.filters.BlurFilter;
import flash.geom.Point;
public class FlashTest extends Sprite
{
public const WIDTH:int = stage.stageWidth;
public const HEIGHT:int = stage.stageHeight;
public const BALL_MAX:int = 1;
public var perlin_sp:Sprite = new Sprite();
public var perlin_bp:Bitmap;
public var perlin_bmd:BitmapData = new BitmapData(
WIDTH,
HEIGHT,
true,
0x000000
);
public var dot_sp:Sprite = new Sprite();
public var dot_bp:Bitmap;
public var dot_bmd:BitmapData = new BitmapData(
WIDTH,
HEIGHT,
true,
0x000000
);
public var dot_sh:Shape;
public function FlashTest()
{
dot_bp = new Bitmap();
dot_bp.bitmapData = dot_bmd;
dot_sp.addChild(dot_bp);
perlin_bp = new Bitmap();
perlin_bp.bitmapData = perlin_bmd;
perlin_sp.addChild(perlin_bp);
stage.addChild(perlin_sp);
stage.addChild(dot_sp);
//_sp.blendMode = BlendMode.LAYER;
dot_sp.blendMode = BlendMode.DIFFERENCE;
stage.addEventListener(Event.ENTER_FRAME,makeDot);
stage.addEventListener(Event.ENTER_FRAME,perlinNoise);
}
private var X:int;
private var Y:int;
public function makeDot(event:Event):void
{
for(var i:int = 1;i <= BALL_MAX;++i){
var COLOR:Number;
var RED:int = randomNum(0xff);
var GREEN:int = randomNum(0xcc);
var BLUE:int = 0xff;
COLOR = RED << 16 | GREEN << 8 | BLUE;
var BALL_SIZE:int = randomNum(50);
X = randomNum(stage.stageWidth);
Y = randomNum(stage.stageHeight);
dot_sh = new Shape();
dot_sh.graphics.beginFill(COLOR);
dot_sh.graphics.drawCircle(X,Y,BALL_SIZE);
dot_sh.graphics.endFill();
dot_bmd.draw(dot_sh);
}
dot_bmd.applyFilter(
dot_bmd,
dot_bmd.rect,
new Point(0, 0),
new BlurFilter(80, 20)
);
dot_bmd.scroll(0,-1);
}
public const BASE_X:int = stage.stageWidth;
public const BASE_Y:int = stage.stageHeight / 4;
public const OCTAVE_NUMBER:uint = 4;
public var RANDOM_SEED:int = Math.floor(Math.random() * 0xffffff);
public var CHANNEL_OPTION:int = 15;//BitmapDataChannel.RED |BitmapDataChannel.BLUE;//7;
public var offset_array:Array = [new Point(),new Point(), new Point()];
public function perlinNoise(event:Event):void
{
perlin_bmd.perlinNoise(
BASE_X,
BASE_Y,
OCTAVE_NUMBER,
RANDOM_SEED,
false,
true,
CHANNEL_OPTION,
false,
offset_array
);
offset_array[0].y += 0.5;
offset_array[1].x -= 0.7;
offset_array[2].y -= 0.8;
}
private function randomNum(num:Number):Number
{
var v:Number;
v = Math.floor(Math.random() * num);
return v;
}
}
}