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.spd[i]=Math.random()*0.01+0.005;
??this.fruitType[i]="";
?}
?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=="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]*7*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";
????}
?else
?{
??this.fruitType[i]="orange";
?}
}
function?fruitmonitor()
{
?var?num=0;
?for(var?i=0;i<fruit.num;i++)
?{
??if(fruit.alive[i])
??{
???num++
??}
?}
?if(num<15)
?{
??sendfurit();
??return;
?}
}
function?sendfurit()
{
?for(var?i=0;i<fruit.num;i++)
?{
??if(!fruit.alive[i])
??{
???fruit.born(i);
???return;
??}
?}
}