var canvas; 

var stage;

var sprite;

(function(){

  canvas = document.getElementById("myCanvas");

  stage = new createjs.Stage(canvas);

  stage.addEventListener("stagemousedown",mouseDown);

  stage.addEventListener("stagemousemove",mouseMove);

  var data={

    images:["http://ico.ooopic.com/ajax/iconpng/?id=94830.png"],

    frames:{width:128,height:128}

  };

  var spriteSheet = new createjs.SpriteSheet(data);

  sprite = new createjs.Sprite(spriteSheet);

  createjs.Ticker.setFPS(20);

  createjs.Ticker.addEventListener("tick",handleTick);

})()

function handleTick(event){

  var t = stage.getNumChildren();

  for(var i = t-1;i>0;i--){   

    var s = stage.getChildAt(i);

    //after

    s.vX +=1;

    s.vY +=2;

    s.x += s.vX;

    s.y += s.vY;

    s.vS = (Math.random() -0.5)*0.05; 

    s.vA = -Math.random() *0.05 -0.01;

    s.scaleX = s.scaleY =s.scaleX+ s.vS;

    s.alpha += s.vA;

    //delete element

    if(s.alpha <= 0 || s.y >canvas.height || s.x >canvas.width){    

      stage.removeChildAt(i);

    }

  }

  stage.update(event);

}

​

function mouseDown(event){

  global(Math.random()*100 + 50,stage.mouseX,stage.mouseY,2);

}

​

function mouseMove(event){

  global(Math.random(),stage.mouseX,stage.mouseY,1);

}

​

function global(sum,x,y,speed){

  for(var i = 0;i<sum;i++){

    var s = sprite.clone();

    //prototype

    s.x = x;

    s.y = y;

    s.alpha = Math.random()*0.5 + 0.5;

    s.scaleX = s.scaleY = Math.random()*0.5;

    //transform

    var a = Math.PI * 2 *Math.random();

    var v = (Math.random() - 0.5) *30 *speed;

    s.vX = Math.cos(a) *v;

    s.vY = Math.sin(a) *v;

    //add to canvas

    stage.addChild(s);

  }

}