halo.JS

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

{

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

{

if(!this.alive[i])

{

this.x[i]=x;

this.y[i]=y;

this.r[i]=10;

this.alive[i]=true;

}

}

}

代码遗落了一个        “ ！”字符

if(!this.alive[i])           加上就好了“ ！”字符

已解决，忘记改成初始化this.alive[i] == true

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(123,123,123,1)";

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

{

if (this.alive[i])

{

alert("123");

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(123,123,123,"+ alpha +")";

ctx1.stroke();

}

}

ctx1.restore();

}

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

{

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

{

if (this.alive[i])

{

this.x[i] = x;

this.y[i] = y;

this.r[i] = 10;

this.alive[i] = true; 

return;

}

}

}

这位同学，能把代码贴出来看一下吗？