蓝色的显示不出来
var fruitObj = function()
{
this.alive = [];
this.x = [];
this.y = [];
this.l = [];
this.spd= [];
this.fruitType=[];
this.orange = new Image();
this.blue = new Image();
}
fruitObj.prototype.num = 30;
fruitObj.prototype.init = function()
{
for(var i = 0;i < this.num; i++)
{
this.alive[i] = false;
this.x[i] = 0;
this.y[i] = 0;
this.l[i] = 0;
this.fruitType="";
this.spd[i]=Math.random()*0.02+0.003;
}
this.orange.src = "./src/fruit.png";
this.blue.src = "./src/blue.png";
}
fruitObj.prototype.draw = function()
{
for(var i = 0; i < this.num; i ++)
{
if (this.alive[i])
{
if(this.fruitType[i]=="blue"){
var pic=this.blue;
}else{
var pic=this.orange;
}
if(this.l[i]<=14)
{
this.l[i]+=this.spd[i]*deltaTime;
}
else
{
this.y[i]-=this.spd[i]*deltaTime;
}
ctx2.drawImage(pic, this.x[i] - this.l[i] * 0.5,this.y[i] - this.l[i] * 0.5,this.l[i],this.l[i]);
if (this.y[i]<10)
{
this.alive[i]=false;
}
}
}
}
fruitObj.prototype.born = function(i)
{
var aneID = Math.floor(Math.random() * ane.num);
this.x[i] = ane.x[aneID];
this.y[i] = canHeight - ane.len[aneID];
this.l[i] = 0;
this.alive[i]=true;
var ran=Math.random();
if(ran<0.3){
this.fruitType[i]="blue"; //orange,blue
}else{
this.fruitType[i]="orange";
}
}
function fruitMonitor()
{
var num=0
for (var i = 0; i < fruit.num; i++)
{
if (fruit.alive[i]) num++;
} // body...
if (num<15)
{
sendFruit();
return;
}
}
function sendFruit()
{
for (var i = 0; i < fruit.num; i++)
{
if (!fruit.alive[i])
{
fruit.born(i);
return;
}
}
}
