forked from: Liquid100000＋うんこ
package {
import flash.display.*;
import flash.events.*;
import flash.geom.*;
import flash.utils.*;
import flash.text.*;
import flash.filters.*;
[SWF(width=465, height=465, backgroundColor=0xFDEA9B, frameRate=60)]
public class Liquid extends Sprite {
private const NUM_PARTICLES:uint = 100000;
private var particles:Vector.<Particle> = new Vector.<Particle>(NUM_PARTICLES, true);
private var screen:BitmapData;
private var densityMap:BitmapData;
private var timer:Timer;
private var seed:Number = Math.floor(Math.random() * 0xFFFF);
private var offset:Array = [new Point(), new Point()];
private var colotTrans:ColorTransform = new ColorTransform(0.8, 0.8, 0.8);
private var text:TextField=new TextField();
public function Liquid() {
for (var i:uint=0; i<NUM_PARTICLES; i++) {
particles[i] = new Particle(Math.random() * 465, Math.random() * 465);
}
densityMap = new BitmapData(233, 233, false, 0x000000);
screen = new BitmapData(465, 465, false, 0xFDEA9B);
addChild(new Bitmap(screen));
//addChild(new Bitmap(densityMap));
addEventListener(Event.ENTER_FRAME, loop);
timer = new Timer(100, 0);
timer.addEventListener(TimerEvent.TIMER, reset);
timer.start();
text.text="うんこうんこ\nうんこうんこ\nうんこうんこ\nうんこうんこ";
text.textColor=0xffffff
//text.filters=[new GlowFilter(0xffffff,1,8,8,20)]
reset();
}
private function loop(event:Event):void {
screen.lock();
//screen.colorTransform(screen.rect, colotTrans);
screen.fillRect(screen.rect,0x660000)
for each (var p:Particle in particles) {
var c:uint = densityMap.getPixel(p.px >> 1, p.py >> 1);
var aa:Number=(c!=0xFFFFFF)?0.92:0.05;
p.px += p.vx += p.ax +=((0xFF & c ) - 0x80) * 0.0005;
p.py += p.vy += p.ay +=((0xFF & c >> 8) - 0x80) * 0.0005;
p.ax *= 0.96; p.ay *= 0.96;
p.vx *= aa; p.vy *= aa;
screen.setPixel(
p.px = ((p.px > 464) ? 0 : (p.px < 0) ? 464 : p.px),
p.py = ((p.py > 464) ? 0 : (p.py < 0) ? 464 : p.py),
0xaa8800+((0x55*Math.random())<<16));
}
screen.applyFilter(screen,screen.rect,new Point(),new BlurFilter(2,2))
screen.unlock();
}
private function reset(event:Event=null):void {
var mat:Matrix=new Matrix();
mat.scale(4,4)
densityMap.perlinNoise(117, 117, 2, seed, false, true, 6, false, offset);
densityMap.draw(text,mat);
offset[0].x += 1.5;
offset[1].y += 1.0;
//colotTrans.redMultiplier = Math.cos(timer.currentCount * 0.0131) * 0.2 + 0.7;
//colotTrans.blueMultiplier = Math.sin(timer.currentCount * 0.0572) * 0.2 + 0.7;
}
}
}
class Particle {
public var vx:Number = 0;
public var vy:Number = 0;
public var ax:Number = 0;
public var ay:Number = 0;
public var px:Number;
public var py:Number;
public function Particle(px:Number, py:Number) {
this.px = px;
this.py = py;
}
}