3D Flow Simulation, Liquid 10000
3D にしてみました
10000 パーティクル
// forked from clockmaker's 3D Flow Simulation
// forked from clockmaker's Interactive Liquid 10000
// forked from clockmaker's Liquid110000 By Vector
// forked from munegon's forked from: forked from: forked from: forked from: Liquid10000
// forked from Saqoosha's forked from: forked from: forked from: Liquid10000
// forked from nutsu's forked from: forked from: Liquid10000
// forked from nutsu's forked from: Liquid10000
// forked from zin0086's Liquid10000
package {
/**
* 3D にしてみました
* 10000 パーティクル
*/
import flash.display.*;
import flash.geom.*;
import flash.events.*;
import flash.utils.*;
import flash.geom.*;
import net.hires.debug.Stats;
public class Liquid3D extends Sprite {
private const NUM_PARTICLE:uint = 10000;
private var bmpData:BitmapData = new BitmapData( 465, 465, false, 0x000000 );
private var forceMap:BitmapData = new BitmapData( 233, 233, false, 0x000000 );
private var randomSeed:uint = Math.floor( Math.random() * 0xFFFF );
private var rect:Rectangle = new Rectangle( 0, 0, 465, 465 );
private var seed:Number = Math.floor( Math.random() * 0xFFFF );
private var offset:Array = [new Point(), new Point()];
private var colorTransform:ColorTransform = new ColorTransform( .86, .92, .92);
private var timer:Timer;
private var beginner:Particle;
public function Liquid3D() {
stage.align = StageAlign.TOP_LEFT;
stage.scaleMode = StageScaleMode.NO_SCALE;
stage.quality = StageQuality.LOW;
stage.frameRate = 60;
// 画面に表示用の Bitmap を作ります
addChild(new Bitmap( bmpData )) as Bitmap;
// フォースマップの初期化をおこないます
resetFunc();
// ループ時の参照用
var particle:Particle;
var next:Particle;
// パーティクルを生成します
for (var i:uint = 0; i <= NUM_PARTICLE; i++) {
var px:Number = Math.round(Math.random() * 465);
var py:Number = Math.round(Math.random() * 465);
var pz:Number = Math.round(Math.random() * 465 * 2 - 465);
particle = new Particle(px, py, pz);
particle.next = next;
next = particle;
if (i == NUM_PARTICLE) {
beginner = particle;
}
}
// ループ処理
addEventListener( Event.ENTER_FRAME, loop );
// 時間差でフォースマップと色変化の具合を変更しています
var timer:Timer = new Timer(500)
timer.addEventListener(TimerEvent.TIMER, resetFunc);
timer.start();
// デバッグ用のスタッツを表示しています
addChild(new Stats);
}
private function loop( e:Event ):void
{
var p:Particle = beginner;
var f:Number;
bmpData.lock();
while (p = p.next) {
f = forceMap.getPixel( p.x >> 1, p.y >> 1);
p.ax += ( (f >> 8 & 0xff) - 128 ) * .0005;
p.ay += ( (f >> 4 & 0xff) - 128 ) * .0005;
p.az += ( (f >> 16 & 0xff) - 128 ) * .0005;
p.vx += p.ax;
p.vy += p.ay;
p.vz += p.az;
p.x += p.vx;
p.y += p.vy;
p.z += p.vz;
bmpData.fillRect(p.rect, 0xFFFFFFFF);
p.ax *= .95;
p.ay *= .95;
p.az *= .95;
p.vx *= .90;
p.vy *= .90;
p.vz *= .90;
if (p.x < 0) p.x += 465;
else if (p.x > 465) p.x -= 465;
if (p.y < 0) p.y += 465;
else if (p.y > 465) p.y -= 465;
if (p.z < -465) p.z += 930;
else if (p.z > 465) p.z -= 930;
}
bmpData.colorTransform(rect, colorTransform);
bmpData.unlock();
}
private function resetFunc(e:Event = null):void{
forceMap.perlinNoise(233, 233, 3, seed, false, false, 1|2|4|0, false, offset );
offset[0].x += 1.5;
offset[1].y += 1;
seed = Math.floor( Math.random() * 0xFFFFFF );
}
}
}
import flash.display.*;
import flash.geom.*;
class Particle
{
// スケールの計算はこれで良いや。
public function get rect():Rectangle
{
var f:Number = 200 / (200 + z);
_rect.width = _rect.height = 2 * f;
_rect.x = x * f;
_rect.y = y * f;
return _rect;
}
// 可能なら整数型（int）にしてあげた方が高速。
// 普段は気にする必要は無いが、ループ処理内部で多くの計算を行う場合は、
// 浮動小数点数（Number）の計算は重いため。
public var x:int = 0;
public var y:int = 0;
public var z:int = 0;
public var vx:Number = 0;
public var vy:Number = 0;
public var vz:Number = 0;
public var ax:Number = 0;
public var ay:Number = 0;
public var az:Number = 0;
public var next:Particle;
private var _rect:Rectangle = new Rectangle();
function Particle( x:int, y:int, z:int ) {
this.x = x;
this.y = y;
this.z = z;
}
}