我有以下代码:
public void run(){
long lastTime=System.nanoTime();
final double amountOfTicks=60.0;
double ns=1000000000/amountOfTicks;
double delta=0;
int updates=0;
int frames=0;
long timer=System.currentTimeMillis();
while(running){
long now=System.nanoTime();
delta+=(now-lastTime)-ns;
lastTime=now;
if(delta>=1){
tick();
updates++;
delta--;
}
render();
frames++;
if((System.currentTimeMillis()-timer)>1000){
timer+=1000;
System.out.println(updates+" Ticks, FPS "+frames);
updates=0;
frames=0;
}
}
stop();
}
这应该显示“60 Ticks,FPS 9000000”,但它显示“0 Ticks,FPS 9000000”。为什么会这样,我该如何解决?