我正在创建一个关于java swing applet的鼹鼠游戏但是我在计算鼹鼠出现时遇到了麻烦。我似乎无法避免paint（）在我身上循环，从而使摩尔的坐标随机化得太快。我怎样才能延迟鼹鼠上升并停留一段时间，如果他们没有被击中就摔倒？如何在不延迟整个程序的情况下创建此延迟？
请帮助
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import javax.swing.*;
import javax.swing.Timer;
public class Game extends JApplet
{
boolean titleScreen = true;
boolean gameBegin = false;
// /////////////////////////////////
// ///// IMAGE /////////
// /////////////////////////////////
Dimension dim;
Image offscreen;
static Graphics bufferGraphics;
static Image h1, h2, bg, gamebg, button1a, button1b, button2a, button2b;
static Image m1, m1a, m1b, m2a, m2b;
static Image[] mk = new Image [9];
// /////////////////////////////////
// ///// MOUSE /////////
// /////////////////////////////////
Cursor c;
boolean myButtonPressed = false;
boolean myButtonEntered = false;
int myMouseX = 0, myMouseY = 0;
int myRow = -1, myCol = -1;
// /////////////////////////////////
// / GAME VARIABLES ///
// /////////////////////////////////
private static final int[] mX = {5, 170, 335, 5, 170, 335, 5, 170, 335};
private static final int[] mY = {5, 5, 5, 170, 170, 170, 335, 335, 335};
int rand, randm;
static int[] t = new int [9];
static boolean mhhit = false;
static boolean[] mhit = {false, false, false, false, false, false, false, false, false};
private int[] respawnCounter = {0, 0, 0, 0, 0, 0, 0, 0, 0};
private int[] removeCounter = {0, 0, 0, 0, 0, 0, 0, 0, 0};
static int score = 0;
public JFrame window;
// /////////////////////////////////
// ///// BUTTON /////////
// /////////////////////////////////
GameScreen g1 = new GameScreen ();
Timer repaintTimer = null;
// GameTime m1 = new GameTime (t[]);
// GameTime m2 = new GameTime (t[]);
// GameTime m3 = new GameTime (t[]);
// GameTime m4 = new GameTime (t[]);
// GameTime m5 = new GameTime (t[]);
// GameTime m6 = new GameTime (t[]);
// GameTime m7 = new GameTime (t[]);
// GameTime m8 = new GameTime (t[]);
// GameTime m9 = new GameTime (t[]);
public Game ()
{
window = new JFrame ("Monkeying Around");
window.setResizable (false);
window.setSize (800, 400);
window.setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE);
}
public void init ()
{
// /////////////////////////////////
// ///// IMAGE /////////
// /////////////////////////////////
dim = getSize ();
setBackground (Color.white);
offscreen = createImage (dim.width, dim.height);
bufferGraphics = offscreen.getGraphics ();
// Getting all the images
m1a = getImage (getCodeBase (), "m1a.gif");
m1b = getImage (getCodeBase (), "m1b.gif");
m1 = getImage (getCodeBase (), "m1.gif");
h1 = getImage (getCodeBase (), "hammer.gif");
h2 = getImage (getCodeBase (), "hammer2.gif");
bg = getImage (getCodeBase (), "mainbg.gif");
gamebg = getImage (getCodeBase (), "gbg.gif");
button1a = getImage (getCodeBase (), "button1a.gif");
button1b = getImage (getCodeBase (), "button1b.gif");
button2a = getImage (getCodeBase (), "button2a.gif");
button2b = getImage (getCodeBase (), "button2b.gif");
for (int mnum = 0 ; mnum < 9 ; mnum++)
{
mk [mnum] = m1;
}
///////////////////////
/////// MOUSE /////////
///////////////////////
Toolkit tk = Toolkit.getDefaultToolkit ();
c = tk.createCustomCursor (tk.getImage (""), new Point (0, 0), "invisible");
setCursor (c);
addMouseListener (new MyMouseListener ());
addMouseMotionListener (new MyMouseMotionListener ());
repaintTimer = new Timer (500, new RepaintAction (this));
// start the timer.
} // end init method
public void start ()
{
}
public Image getMouseImage ()
{
if (myButtonPressed)
{
return h2;
}
return h1;
}
public void handleMouseEvents ()
{
int nCol = myMouseX - 50;
int nRow = myMouseY - 50;
if (!myButtonEntered) // assumed to be: if myButtonEntered is
// not = true i.e. false
nCol = nRow = -1;
if (nCol != myCol || nRow != myRow)
{
myRow = nRow;
myCol = nCol;
}
repaint ();
} // end handleMouseEvents method
/////////////////////////////////////
/////// MOUSELISTENER CLASS /////////
/////////////////////////////////////
public class MyMouseListener implements MouseListener
{
public void mousePressed (MouseEvent me)
{
myButtonPressed = true;
myMouseX = me.getX ();
myMouseY = me.getY ();
handleMouseEvents ();
}
public void mouseReleased (MouseEvent me)
{
myButtonPressed = false;
myMouseX = me.getX ();
myMouseY = me.getY ();
handleMouseEvents ();
}
public void mouseEntered (MouseEvent me)
{
myButtonEntered = true;
myMouseX = me.getX ();
myMouseY = me.getY ();
handleMouseEvents ();
}
public void mouseExited (MouseEvent me)
{
myButtonEntered = false;
myMouseX = me.getX ();
myMouseY = me.getY ();
handleMouseEvents ();
}
public void mouseClicked (MouseEvent me)
{
myMouseX = me.getX ();
myMouseY = me.getY ();
handleMouseEvents ();
}
} // end MyMouseListener class
public class MyMouseMotionListener implements MouseMotionListener
{
public void mouseMoved (MouseEvent me)
{
myMouseX = me.getX ();
myMouseY = me.getY ();
handleMouseEvents ();
} // end mouseMoved method
public void mouseDragged (MouseEvent me)
{
myMouseX = me.getX ();
myMouseY = me.getY ();
handleMouseEvents ();
} // end mouseDragged method
} // end MyMouseListener class
public void mouse ()
{
// logic to render mouse...
if (myRow != -1 && myCol != -1)
{ // if you do not hit co-ordinates -1
// (out of bounds) then
Image mouseImage = getMouseImage ();
bufferGraphics.drawImage (mouseImage, myCol, myRow, 100, 100, null, this);
} // end if
}
public void paint (Graphics g)
{
bufferGraphics.clearRect (0, 0, dim.width, dim.height);
repaint ();
if (titleScreen == true)
{
// System.out.println("drawing the main screen");
mainScreen ();
}
if (gameBegin == true)
{
game (g);
}
mouse ();
g.drawImage (offscreen, 0, 0, this);
} // end Paint method
public void update (Graphics g)
{
paint (g);
}
public void mainScreen ()
{
bufferGraphics.drawImage (bg, 0, 0, 600, 500, Color.red, this);
bufferGraphics.drawImage (button1a, 427, 384, 159, 49, Color.red, this);
bufferGraphics.drawImage (button2a, 427, 440, 159, 49, Color.red, this);
mouse ();
if (myButtonPressed == true)
{
if (myRow > (384 - 50) && myRow < (433 - 50) && myCol > (427 - 50)
&& myCol < (586 - 50))
{
titleScreen = false;
gameBegin = true;
}
else if (myRow > (340 - 50) && myRow < (489 - 50)
&& myCol > (427 - 50) && myCol < (586 - 50))
{
titleScreen = false;
}
}
}
public void game (Graphics g)
{
// new ReminderBeep (5);
bufferGraphics.drawImage (gamebg, 0, 0, 600, 500, Color.red, this);
for (int i = 0 ; i < 9 ; i++)
{
bufferGraphics.drawImage (mk [i], mX [i], mY [i], 160, 160, Color.red, this);
}
g.drawString ("har", 520, 140);
}
public void monkeyhit ()
{
if (myButtonPressed == true)
{
for (int hit = 0 ; hit < 9 ; hit++)
if (mhit [hit] == true && myRow > (mY [hit] - 50) && myRow < (mY [hit] + 160 - 50)
&& myCol > (mX [hit] - 50) && myCol < (mX [hit] + 160 - 50))
{
mk [hit] = m1b;
mhhit = true;
mhit [hit] = false;
score += 10;
}
}
// reset ();
}
public void run ()
{
monkey ();
}
// public void reset ()
// {
// mhhit = false;
// for (int x = 0 ; x < 9 ; x++)
// {
// mk [x] = m1;
// mhit [x] = false;
//
// }
//
// }
public void monkey ()
{
rand = ((int) (Math.random () * 100000000)) + 10000000;
randm = ((int) (Math.random () * 100));
if (randm <= 8)
{
for (int a = 0 ; a < 9 ; a++)
{
if (randm == a)
{
mhit [randm] = true;
mk [randm] = m1a;
}
else if (randm != a)
{
mhit [a] = false;
mk [a] = m1;
}
}
for (int i = 0 ; i < rand * 100 ; i++)
{
monkeyhit ();
if (mhit [randm] = false)
mk [randm] = m1;
break;
}
}
}
// Timer
class GameTime
{
Toolkit toolkit;
Timer timer;
public GameTime (int seconds)
{
toolkit = Toolkit.getDefaultToolkit ();
timer = new Timer (seconds, new MTask ());
timer.start ();
}
/*
public void delay(int seconds) {
toolkit = Toolkit.getDefaultToolkit();
timer = new Timer();
timer.schedule(new Mdelay(), seconds * 1000);
}
*/
class MTask implements ActionListener
{
public void actionPerformed (ActionEvent ae)
{
/*
for (int tsec = 0; tsec < 9; tsec++) {
t[tsec] = ((int) (Math.random() * 11)) * 5;
}
*/
}
}
}
class RepaintAction implements ActionListener
{
Game game;
public RepaintAction (Game game)
{
this.game = game;
}
public void actionPerformed (ActionEvent e)
{
game.repaint ();
}
}
}
答案 0 :(得分：3)
在你的绘画方法（或从那里调用的方法）中，你应该只绘画，没有别的（比如检查鼠标的位置等）。
其他一切都应该分开进行。例如，计算（随机化）鼹鼠（或猴子？）的位置不应该在这里完成，而是在计时器方法中，例如。
您的applet需要有一个模型，该模型将由用户交互和随机事件进行修改。然后，绘画方法会查看此模型，并根据此绘制。
答案 1 :(得分：2)
从不不要覆盖update（）和paint（）。这是旧的AWT代码，在Swing中没有使用。
在Swing中，自定义绘制是通过覆盖JPanel或JComponent的paintComponent（）方法完成的。然后将组件添加到applet（或框架或对话框或窗口）的内容窗格中。
阅读Custom Painting上Swing教程中的部分，了解更多信息和示例。
另外，在Swing 中，你永远不会从绘画方法中调用repaint（），因为这会导致无限循环。
答案 2 :(得分：2)
我如何创建此模型？
这是一个非常简单的game，可以指导您的设计。它说明了模型和视图之间的分离;它还链接到相关示例。具有List<Mole>且每个Mole具有javax.swing.Timer的模型似乎很合适。当鼹鼠改变状态时，模型将通知视图，并且视图可以查询模型以进行鼠标命中测试。
答案 3 :(得分：1)
您可以使用startTime，upTime和坐标创建一个Mole类，并在主游戏类中创建一个包含痣的ArrayList。然后，在您的绘制循环中，检查是否有任何痣已经达到其分配的时间，如果是，请将其删除。为了始终保持相当均匀的摩尔数，您可以创建一个新的痣来替换每个被随机开始时间（基于当前时间），上升时间和坐标破坏的痣。
for(Mole mole : this.moles) {
if(System.currentTimeMillis() - mole.getStartTime() >= mole.getUpTime()) {
this.moles.remove(mole);
}
}
线程也可能是一个合适但更复杂的选择。