↑ Return to Flash

Colorful Physics Ball

このエントリーを含むはてなブックマークはてなブックマーク - Colorful Physics Ball Googleブックマークに追加 このエントリをつぶやくこのWebページのtweets

package
{
    import com.actionsnippet.qbox.*;
    import flash.display.*;
    import flash.events.Event;
    import flash.filters.*;
    import flash.geom.Matrix;
    
    [SWF(backgroundColor=0, width=465, height=465)]
    public class QB_4 extends MovieClip
    {
        private const SCALE:int = 30, BALL:int=30, W:int=465, H:int=465;
        public static const colorAry:Array = [16711680,16712704,16713728,16715008,16716032,16717056,16718080,16719360,16720384,16721408,16722432,16723712,16724736,16725760,16727040,16728064,16729088,16730112,16731392,16732416,16733440,16734464,16735744,16736768,16737792,16738816,16740096,16741120,16742144,16743168,16744448,16745472,16746496,16747520,16748800,16749824,16750848,16751872,16753152,16754176,16755200,16756224,16757504,16758528,16759552,16760576,16761856,16762880,16763904,16764928,16766208,16767232,16768256,16769280,16770560,16771584,16772608,16773632,16774912,16775936,16776960,16514816,16187136,15924992,15662848,15400704,15073024,14810880,14548736,14286592,13958912,13696768,13434624,13172480,12844800,12582656,12320512,12058368,11796224,11468544,11206400,10944256,10682112,10354432,10092288,9830144,9568000,9240320,8978176,8716032,8453888,8126208,7864064,7601920,7339776,7012096,6749952,6487808,6225664,5897984,5635840,5373696,5111552,4783872,4521728,4259584,3997440,3669760,3407616,3145472,2883328,2555648,2293504,2031360,1769216,1441536,1179392,917248,655104,327424,65280,65284,65288,65293,65297,65301,65306,65310,65314,65318,65322,65327,65331,65335,65340,65344,65348,65352,65356,65361,65365,65369,65374,65378,65382,65386,65390,65395,65399,65403,65408,65412,65416,65420,65425,65429,65433,65437,65442,65446,65450,65454,65459,65463,65467,65471,65475,65480,65484,65488,65493,65497,65501,65505,65509,65514,65518,65522,65527,65531,65535,64511,63487,62207,61183,60159,58879,57855,56831,55807,54783,53503,52479,51455,50175,49151,48127,47103,46079,44799,43775,42751,41727,40447,39423,38399,37375,36095,35071,34047,33023,31743,30719,29695,28415,27391,26367,25343,24319,23039,22015,20991,19711,18687,17663,16639,15615,14335,13311,12287,11007,9983,8959,7935,6911,5631,4607,3583,2303,1279,255,262399,524543,852223,1114367,1376511,1638655,1966335,2228479,2490623,2818303,3080447,3342591,3604735,3932415,4194559,4456703,4718847,4980991,5308671,5570815,5832959,6095103,6422783,6684927,6947071,7274751,7536895,7799039,8061183,8388863,8651007,8913151,9175295,9437439,9765119,10027263,10289407,10617087,10879231,11141375,11403519,11731199,11993343,12255487,12517631,12779775,13107455,13369599,13631743,13893887,14221567,14483711,14745855,15073535,15335679,15597823,15859967,16187647,16449791,16711935,16711931,16711927,16711922,16711918,16711914,16711910,16711905,16711901,16711897,16711892,16711888,16711884,16711880,16711875,16711871,16711867,16711863,16711859,16711854,16711850,16711846,16711842,16711837,16711833,16711829,16711824,16711820,16711816,16711812,16711808,16711803,16711799,16711795,16711791,16711786,16711782,16711778,16711773,16711769,16711765,16711761,16711756,16711752,16711748,16711744,16711740,16711735,16711731,16711727,16711723,16711718,16711714,16711710,16711705,16711701,16711697,16711693,16711688,16711684];
        private var sim:QuickBox2D, contact:QuickContacts;
        private var particleList:Vector.<Particle>, objectList:Vector.<QuickObject>;
        public function QB_4()
        {
            
            particleList = new Vector.<Particle>();
            objectList = new Vector.<QuickObject>();
            
            sim = new QuickBox2D(this);
            sim.setDefault({lineColor:0xFFFFFF, fillColor:0xFFFFFF});
            createWall(W/2/SCALE, H/SCALE, W/SCALE, 0.5);
            createWall(W/2/SCALE, 0, W/SCALE, 0.5);
            createWall(0, H/2/SCALE, 0.5, H/SCALE);
            createWall(W/SCALE, H/2/SCALE, 0.5, H/SCALE);
            
            for(var i:int = 0; i < BALL; i++){ 
                var color:uint = colorAry[int(360/BALL)*i];
                var r:Number = Math.random()*20+10;
                var obj:QuickObject = sim.addCircle({x:500*i/BALL/SCALE, y:Math.random()*500/SCALE, radius:r/SCALE, fillColor:color});
                var g:Graphics = obj.userData.graphics;
                g.clear();
                g.lineStyle(3, 0xFFFFFF);
                g.drawCircle(0,0,r);
                obj.userData.filters = [new GlowFilter(color, 1, 16, 16, 4, 2)];
                obj.userData.blendMode = BlendMode.ADD;
                objectList.push(obj);
            }
            //衝突イベントの登録
            contact = sim.addContactListener();
            contact.addEventListener(QuickContacts.ADD, onContact);
            
            sim.mouseDrag();
            sim.start();
            
            addEventListener(Event.ENTER_FRAME, onEnterFrame);
        }
        
        private function createWall(x:Number, y:Number, w:Number, h:Number):void{
            var wall:QuickObject = sim.addBox({x:x, y:y, width:w, height:h, density:0});
            wall.userData.filters = [new GlowFilter(0xFFFFFF, 1, 16, 16)];
            wall.userData.blendMode=BlendMode.ADD;
            objectList.push(wall);
        }
        
        private function onContact(e:Event):void{
            //衝突した座標の取得
            var xx:int=contact.currentPoint.position.x*SCALE;
            var yy:int=contact.currentPoint.position.y*SCALE;
            //力の取得
            var stl:Number = contact.currentPoint.velocity.Length()/5;
            if(stl > 30) stl = 30;
            
            var color:uint;
            //衝突した物体の色を取得
            for(var i:int = 0; i < BALL+4; i++)
                if(contact.inCurrentContact(objectList[i]))    color=objectList[i].params.fillColor;
            
            for(i = 0; i < stl; i++){
                var p:Particle = new Particle(xx, yy, Math.random()*10-5, Math.random()*10-5, color);
                addChild(p);
                particleList.push(p);
            }
        }
        
        private function onEnterFrame(e:Event):void{
            graphics.clear();
            graphics.beginFill(0);
            graphics.drawRect(0,0,465,465);
            graphics.endFill();
            var i:int = particleList.length;
            while(i--){
                var p:Particle = particleList[i];
                p.update();
                if(p.alpha < 0){
                    particleList.splice(i,1);
                    removeChild(p);
                }
            }
        }
    }
}
import flash.display.*;
import flash.filters.GlowFilter;
import flash.geom.Matrix;

class Particle extends Sprite{
    private var vx:Number, vy:Number;
    public function Particle(x:Number, y:Number, vx:Number, vy:Number, color:uint){
        this.x = x; this.y = y, this.vx = vx; this.vy = vy;
        var m:Matrix = new Matrix();
        m.createGradientBox(20, 20, 0, -10, -10);
        graphics.beginGradientFill(GradientType.RADIAL, [color, color, color], [0, 1, 0], [0, 128, 255], m);
        graphics.drawCircle(0,0,10);
        graphics.endFill();
        blendMode = BlendMode.ADD;
    }
    
    public function update():void{
        x += vx; y += vy; 
        vy += 0.3;
        alpha -= 0.05;
    }
}

コメントを残す

メールアドレスが公開されることはありません。 * が付いている欄は必須項目です

次の HTMLタグおよび属性が使えます: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>