java - while 循环中的 Thread.sleep() 无法正常工作？

Question

该对象应该每 5 秒改变一次模式(移动算法)。我首先尝试使用 while 循环，但循环迭代速度太快。然后我添加了 Thread.sleep(5000) 但我的对象仍然仅以一种算法移动 (scatterMode)。算法如下:

//LEVEL 1
//scatter for 7s 
//chase for 20s 
//scatter for 7s 
//chase for 20s 
//scatter for 5s 
//chase for 20s
//scatter for 5s 
//chase indefinite

这是代码。如果您需要查看构造函数和变量声明，它们位于底部。

public void updateMode() throws InterruptedException {  
    while(ghostalive){
        if(seconds<7){
            Thread.sleep(100);
            mode = scatterMode;
        }
        if(7<seconds && seconds<27){
            Thread.sleep(5000);
            mode = chaseMode;
        }
        if(27<seconds && seconds<34){
            Thread.sleep(5000);
            mode = scatterMode;
        }
        if(34<seconds && seconds<54) {
            Thread.sleep(5000);
            mode = chaseMode;
        }
        if(54<seconds && seconds>59) {
            mode = scatterMode;
        }
        if(59< seconds && seconds<79){
            mode = chaseMode;
        }
        if(seconds>84){
            mode = scatterMode;
            ghostalive=false;
        }
        seconds++;
        ghostalive=false;
    }
}

private int seconds=0;
private boolean ghostalive=true;

protected static final int chaseMode = 0;
protected static final int scatterMode = 1;

static int mode = scatterMode; //initially ghost start in scatterMode

public Ghost(int x, int y, Maze maze) throws InterruptedException{
    super(x, y, maze);
    futureDirection = 0;
    timer = 0;
    updateMode();
    //chaseMode = false; 
    //frightenedMode = false;
}     

public static int getMode(){
    return mode;
}

Answer 1

您的 sleep 模式是毫秒和几秒的混合，但您希望计算秒数。

尝试这样的事情:

while(ghostalive){

    if(seconds<7){
        mode = scatterMode;

    }

    if(7<seconds && seconds<27){
        mode = chaseMode;
    }

    if(27<seconds && seconds<34){
        mode = scatterMode;
    }

    if(34<seconds && seconds<54) {
        mode = chaseMode;
    }

    if(54<seconds && seconds>59) {
        mode = scatterMode;
    }

    if(59< seconds && seconds<79){
        mode = chaseMode;
    }

    if(seconds>84){
        mode = scatterMode;
        ghostalive=false;
    }

    seconds++;
    Thread.Sleep(1000);//Sleep for one second only

    //ghostalive=false; // Should this be here? Ghost is set to not alive after each loop?
}

我已将 sleep 移到 if 语句之后，以便它在每个循环中保持一致。