var haloObj = function()

{

this.x = [];

this.y = [];

this.alive = [];

this.r = [];

}

haloObj.prototype.num = 5;

haloObj.prototype.init =function()

{

for (var i = 0;i < this.num; i++) 

{

   this.x[i] = 0;

   this.y[i] = 0;

   this.alive[i] = false;

   this.r[i] = 0;

}

}

haloObj.prototype.draw = function()

{

ctx1.save();

ctx1.lineWidth = 2;

ctx1.shadowBlur = 10;

ctx1.shadowColor = "rgba(206, 91, 0, 1)";

for(var i = 0;i < this.num; i++)

{

if(!this.alive[i])

{

//draw

this.r[i] += deltaTime * 0.05;

if(this.r[i] > 100)

{

this.alive[i] = false;

break;

}

var alpha = 1 - this.r[i] / 100;

ctx1.beginPath();

ctx1.arc(this.x[i], this.y[i], this.r[i], 0, Math.PI *2);

ctx1.closePath();

ctx1.strokeStyle = "rgba(203, 91 ,0"+alpha+")";

ctx1.stroke();

}

}

ctx1.restore();

}

haloObj.prototype.born = function(x, y)

{

for(var i=  o; i < this.num[i]; i++)

{

if (!this.alive[i]) 

{

this.x[i] = x;

this.y[i] = y;

this.r[i] = 10;

this.alive[i] = true;

return;

}

}

}