forked from: forked from: [朝ワン]何か涼しそうなやつ
// forked from aolba's forked from: [朝ワン]何か涼しそうなやつ
// forked from bkzen's [朝ワン]何か涼しそうなやつ
// forked from hacker_ij48yrxl's flash on 2009-5-10
package
{
import flash.display.Bitmap;
import flash.display.BitmapData;
import flash.display.Graphics;
import flash.display.Shape;
import flash.display.Sprite;
import flash.events.Event;
import flash.filters.BlurFilter;
import flash.geom.ColorTransform;
import flash.geom.Point;
import net.hires.debug.Stats;
[SWF(width="465", height="465", backgroundColor="0x000000", frameRate="30")]
public class Asawon6 extends Sprite
{
public static const PERLIN_WIDTH:int = 40;
public static const PERLIN_HEIGHT:int = 40;
public static const WIDTH:int = 500;
public static const HEIGHT:int = 400;
public static const num:Number = 255;
private var px:Number = 0;
private var offset:Array;
private var sh:Shape;
private var bmd:BitmapData;
private var p:Point;
private var blur:BlurFilter;
private var colorTf:ColorTransform;
private var bmpData:BitmapData;
public function Asawon6():void
{
if (stage) init();
else addEventListener(Event.ADDED_TO_STAGE, init);
}
private function init(e:Event = null):void
{
removeEventListener(Event.ADDED_TO_STAGE, init);
// entry point
//filters = [new BlurFilter(4,0)];
offset = [new Point(px += 0.5, 0), new Point( -px / 2, 0), new Point(0, 0)];
bmpData = new BitmapData(PERLIN_WIDTH, PERLIN_HEIGHT);
sh = new Shape();
bmd = new BitmapData(465, 465, false, 0x0);
p = new Point();
blur = new BlurFilter(8, 8);
colorTf = new ColorTransform(1, 1, 1, 1, -2, -1, -1);
addChild(new Bitmap(bmd, "auto", true));
//addChild(new Stats());
addEventListener(Event.ENTER_FRAME, loop);
}
private function loop(e:Event):void {
Point(offset[0]).x = px += 0.5;
Point(offset[1]).x = -px / 2;
bmpData.perlinNoise(PERLIN_WIDTH, PERLIN_HEIGHT, 3, 6456, true, true, 2 | 1, false, offset);
var g: Graphics = sh.graphics;
g.clear();
g.lineStyle(1, 0xFFFFFF, 0.15);
for (var j:int = 0; j < PERLIN_HEIGHT - 1; j++) {
var value1:int = bmpData.getPixel(0, j);
value1 = value1 >> 16;
var value2:int = bmpData.getPixel(0 + 1, j);
value2 = value2 >> 16;
g.moveTo(0 * WIDTH / (PERLIN_WIDTH -1), value1 + HEIGHT / 2 - 128 + j * 3);
for (var i:int = 0; i < PERLIN_WIDTH - 1; i++) {
value1 = bmpData.getPixel(i, j);
value1 = value1 >> 16;
value2 = bmpData.getPixel(i + 1, j);
value2 = value2 >> 16;
g.curveTo(i * WIDTH / (PERLIN_WIDTH - 1), value1 + HEIGHT / 2 -128 + j * 3, (i + 1) * WIDTH / (PERLIN_WIDTH - 1), value2 + HEIGHT / 2 - 128 + j * 3);
}
}
bmd.lock();
bmd.draw(sh);
bmd.applyFilter(bmd, bmd.rect, p, blur);
bmd.colorTransform(bmd.rect, colorTf);
bmd.unlock();
}
}
}