Java - 對象陣列不會移動

Question

好吧，我正在製作一款遊戲，讓它下雨。我用一個數組創建了這些狗，並用一個新線程將它們添加到了我的主類中，除了這些狗都沒有移動，我不知道爲什麼。任何人都可以幫助我發現我的錯誤？ （注：這不是功課，我與我的空閒時間做這個）

這裏有點我的代碼： 主類：

// instance variables 
private double width, height; 
Dogs[] doggo = new Dogs[4]; // an array of dogs 
int count = 3; // counts the amount of lives remaining 
int counter = 0; // counts how many dogs are saved 

public void drawGraphics(){ 
    // draw the dogs 
    for (int i = 0; i < 5; i++) { 
     double x = rand.nextDouble(SIZE, (getWidth()-10)-SIZE); 

     doggo[i] = new Dogs(SIZE, speed, this); 
     // add dog to top of the window 
     add(doggo[i], x, 0); 
     new Thread(doggo[i]).start(); // animate the dogs 
     //System.out.println("try"); 
    } 

    for (int i = 0; i < 5; i++) { 
     double x = rand.nextDouble(10, (getWidth()-10)-SIZE); 

     doggo[i] = new Dogs(SIZE, speed*2, this); 
     // add dog to top of the window 
     add(doggo[i], x, 0); 
     new Thread(doggo[i]).start(); // animate the dogs 
     //System.out.println("try"); 
    } 

} 

狗類：

// constants 
private static final double DELAY = 50; 

// instance variables 
private double size, speed; 
DoggoRescue game; // to recognize use of dogs in DoggoRescue game 
GImage dog;  

public Dogs(double size, double speed, DoggoRescue game){ 
    // save the parameters to the instance variables 
    this.game = game; 
    this.size = size; 
    this.speed = speed; 

    // draw an image of the dog 
    dog = new GImage("Doggo.png"); 
    dog.setSize(size, size); 
    add(dog, -size/2, -size/2); 
} 

// animate the dog 
public void run(){ 
    oneTimeStep(); 
    pause(DELAY); 
} 

// called by run(), move the dog 
private void oneTimeStep(){ 
    // move dog 
    move(0, speed); 
    //System.out.println("try"); 
    pause(DELAY); 
    // call checkCollision of the main class 
    game.checkCollision(this); 
} 

Answer 1

編輯：

你的狗類需要實現Runnable，所以你可以在啓動線程時調用run（）方法。

你可以看看Oracle文檔這裏的一個例子： https://docs.oracle.com/javase/tutorial/essential/concurrency/runthread.html