我查看了这些链接,没有人帮助过我。我正在使用KeyListener和Runnalbe使用JFrame制作游戏。我在过去的游戏中从来没有遇到任何问题,但现在我正在谈论的是:
这是我的构造函数:
public Game()
{
super("ZMan");
addKeyListener(this);
setSize(800,600);
setVisible(true);
i = createImage(800,600);
b = i.getGraphics();
makeLevel();
souls = new Image[3];
particles = new double[20][3];
pc = 10;
pH = 20;
player = new Image[8];
nme = new Image[8];
showMessage = false;
try
{
bg = ImageIO.read(new File("bg.png"));
abg = ImageIO.read(new File("abg.png"));
bil = ImageIO.read(new File("buildingP.png"));
bilP = ImageIO.read(new File("building.png"));
message = ImageIO.read(new File("./system/messageBG.png"));
souls[2] = ImageIO.read(new File("sR.png"));
souls[1] = ImageIO.read(new File("sG.png"));
souls[0] = ImageIO.read(new File("sB.png"));
rem = souls[0];
//player
player[0] = ImageIO.read(new File("./player/normal.png"));
player[1] = ImageIO.read(new File("./player/pBloop.png"));
player[2] = ImageIO.read(new File("./player/pscorp.png"));
player[3] = ImageIO.read(new File("./player/pSqui.png"));
player[4] = ImageIO.read(new File("./player/pCato.png"));
player[5] = ImageIO.read(new File("./player/pChubs.png"));
player[6] = ImageIO.read(new File("./player/pPluckers.png"));
player[7] = ImageIO.read(new File("./player/pSpooky.png"));
gate = ImageIO.read(new File("./gate.png"));
levelUp = ImageIO.read(new File("./system/levelUp.png"));
xL = ImageIO.read(new File("./player/x.png"));
/*
nme[0] = ImageIO.read(new File("./enemies/bloop.png"));
nme[1] = ImageIO.read(new File("./enemies/bloop.png"));
nme[2] = ImageIO.read(new File("./enemies/scorp.png"));
nme[3] = ImageIO.read(new File("./enemies/squi.png"));
nme[4] = ImageIO.read(new File("./enemies/cato.png"));
*/
nme[0] = Toolkit.getDefaultToolkit().createImage("./enemies/bloob.png");
nme[1] = Toolkit.getDefaultToolkit().createImage("./enemies/bloob.png");
nme[2] = Toolkit.getDefaultToolkit().createImage("./enemies/scorp.png");
nme[3] = Toolkit.getDefaultToolkit().createImage("./enemies/squi.png");
nme[4] = Toolkit.getDefaultToolkit().createImage("./enemies/cato.png");
nme[5] = Toolkit.getDefaultToolkit().createImage("./enemies/chubs.png");
nme[6] = Toolkit.getDefaultToolkit().createImage("./enemies/pluckers.png");
nme[7] = Toolkit.getDefaultToolkit().createImage("./enemies/spooky.png");
}
catch(Exception e){e.printStackTrace();}
powerT = new String[8];
powerT[0] = "You went back to normal";
powerT[1] = "You are now Bloop!";
powerT[2] = "You are now Scorp!";
powerT[3] = "You are now Squi!";
powerT[4] = "You are now Cato!";
powerT[5] = "You are now Chubs!";
powerT[6] = "You are now Pluckers";
powerT[7] = "You are now Spooky";
startAim();
//music = new Music("./system/music/0.wav");
t.start();
}
是否有人知道这个问题?
答案 0 :(得分:3)
“要触发键盘事件,组件必须具有键盘焦点。” - How to Write a Key Listener。我猜测相关组件第二次关注。您可以尝试requestFocusInWindow()
,或者最好查看How to Use Key Bindings。
附录:有一个关键的绑定示例here。
答案 1 :(得分:0)
这可能听起来很愚蠢,但更多的是理智检查。检查您的主要方法。我建议做一个调试步骤,确保第一次启动窗口时,实际上调用了Game的构造函数......没有任何关于构造函数的东西看起来很糟糕(对我来说),这让我觉得可能会对对象的实例化进行管理。
如果不是这样,我无法帮助你;你必须等待更聪明的人回答问题:)