编辑（2017 年 4 月 3 日）：对不起，那时我是菜鸟。
我正在尝试制作一个回合制战斗系统，玩家在回合中点击按钮。但我似乎无法找到如何编码。下面是我所做的代码。
这里应该发生的是，当我单击攻击按钮（例如）时，下一个回合将是怪物的回合，但是当我单击按钮时 playerTurn 变量不会改变。playerTurn 总是正确的。你能帮我纠正这个吗？这是一个回合制战斗系统。
public class BattleFrame extends JFrame implements ActionListener, Runnable {
private JButton atkButton = new JButton("Attack");
private JButton runButton = new JButton("Run");
private JButton itemButton = new JButton("Item");
private JButton magicButton = new JButton("Magic");
private JPanel panelButtons = new JPanel();
private Random rand = new Random();
private Boolean playerTurn;
private Thread t;
public BattleFrame() {
setSize(480, 390);
setLayout(null);
// I have not included the code with the setting of the JButtons
initPanel(); // initialize the panel with buttons
setResizable(false);
setVisible(true);
playerTurn = true;
t = new Thread(this);
t.start();
}
// I'm not so familiar with 'synchronized' but I tried it here but it doesn't change anything
public void actionPerformed(ActionEvent e) {
Object src = e.getSource();
if(src.equals(atkButton) && playerTurn) {
System.out.println("Attack!");
playerTurn = false;
}
else if(src.equals(runButton) && playerTurn) {
System.out.println("Run!");
playerTurn = false;
}
else if(src.equals(itemButton) && playerTurn) {
System.out.println("Item");
playerTurn = false;
}
else if(src.equals(magicButton) && playerTurn) {
System.out.println("Magic");
playerTurn = false;
}
}
public void run() {
while(true) {
if(playerTurn == false) {
System.out.println("Monster's turn!"); // just printing whose turn it is
playerTurn = true;
}
else System.out.println("player's turn!");
}
}
public static void main(String[] args) {
new BattleFrame();
}
}