小游戏.txt

就是一个小程序很好的 不信你自己来看看吧

/** 
* File: ControlPanel.java 
* User:相思无偿 
* Date: 2004.12.3 
* Describe: 俄罗斯方块的 Java 实现 
*/ 

import javax.swing.*; 
import javax.swing.border.Border; 
import javax.swing.border.EtchedBorder; 
import java.awt.*; 
import java.awt.event.*; 

/** 
* 控制面板类，继承自JPanel. 
* 上边安放预显窗口、等级、得分、控制按钮 
* 主要用来控制游戏进程。 
*/ 
class ControlPanel extends JPanel { 
private JTextField 
tfLevel = new JTextField("" + ErsBlocksGame.DEFAULT_LEVEL), 
tfScore = new JTextField("0"); 

private JButton 
btPlay = new JButton("Play"), 
btPause = new JButton("Pause"), 
btStop = new JButton("Stop"), 
btTurnLevelUp = new JButton("Turn hard"), 
btTurnLevelDown = new JButton("Turn easy"); 

private JPanel plTip = new JPanel(new BorderLayout()); 
private TipPanel plTipBlock = new TipPanel(); 
private JPanel plInfo = new JPanel(new GridLayout(4, 1)); 
private JPanel plButton = new JPanel(new GridLayout(5, 1)); 

private Timer timer; 
private ErsBlocksGame game; 

private Border border = new EtchedBorder( 
EtchedBorder.RAISED, Color.white, new Color(148, 145, 140)); 

/** 
* 控制面板类的构造函数 
* @param game ErsBlocksGame, ErsBoxesGame类的一个实例引用， 
* 方便直接控制ErsBoxesGame类的行为。 
*/ 
public ControlPanel(final ErsBlocksGame game) { 
setLayout(new GridLayout(3, 1, 0, 4)); 
this.game = game; 

plTip.add(new JLabel("Next block"), BorderLayout.NORTH); 
plTip.add(plTipBlock); 
plTip.setBorder(border); 

plInfo.add(new JLabel("Level")); 
plInfo.add(tfLevel); 
plInfo.add(new JLabel("Score")); 
plInfo.add(tfScore); 
plInfo.setBorder(border); 

tfLevel.setEditable(false); 
tfScore.setEditable(false); 

plButton.add(btPlay); 
plButton.add(btPause); 
plButton.add(btStop); 
plButton.add(btTurnLevelUp); 
plButton.add(btTurnLevelDown); 
plButton.setBorder(border); 

add(plTip); 
add(plInfo); 
add(plButton); 

addKeyListener(new ControlKeyListener()); 

btPlay.addActionListener(new ActionListener() { 
public void actionPerformed(ActionEvent ae) { 
game.playGame(); 
} 
}); 
btPause.addActionListener(new ActionListener() { 
public void actionPerformed(ActionEvent ae) { 
if (btPause.getText().equals(new String("Pause"))) { 
game.pauseGame(); 
} else { 
game.resumeGame(); 
} 
} 
}); 
btStop.addActionListener(new ActionListener() { 
public void actionPerformed(ActionEvent ae) { 
game.stopGame(); 
} 
}); 
btTurnLevelUp.addActionListener(new ActionListener() { 
public void actionPerformed(ActionEvent ae) { 
try { 
int level = Integer.parseInt(tfLevel.getText()); 
if (level < ErsBlocksGame.MAX_LEVEL) 
tfLevel.setText("" + (level + 1)); 
} catch (NumberFormatException e) { 
} 
requestFocus(); 
} 
}); 
btTurnLevelDown.addActionListener(new ActionListener() { 
public void actionPerformed(ActionEvent ae) { 
try { 
int level = Integer.parseInt(tfLevel.getText()); 
if (level > 1) 
tfLevel.setText("" + (level - 1)); 
} catch (NumberFormatException e) { 
} 
requestFocus(); 
} 
}); 

addComponentListener(new ComponentAdapter() { 
public void componentResized(ComponentEvent ce) { 
plTipBlock.fanning(); 
} 
}); 

timer = new Timer(500, new ActionListener() { 
public void actionPerformed(ActionEvent ae) { 
tfScore.setText("" + game.getScore()); 
int scoreForLevelUpdate = 
game.getScoreForLevelUpdate(); 
if (scoreForLevelUpdate >= ErsBlocksGame.PER_LEVEL_SCORE 
&& scoreForLevelUpdate > 0) 
game.levelUpdate(); 
} 
}); 
timer.start(); 
} 

/** 
* 设置预显窗口的样式， 
* @param style int,对应ErsBlock类的STYLES中的28个值 
*/ 
public void setTipStyle(int style) { 
plTipBlock.setStyle(style); 
} 

/** 
* 取得用户设置的游戏等级。 
* @return int, 难度等级，1 － ErsBlocksGame.MAX_LEVEL 
*/ 
public int getLevel() { 
int level = 0; 
try { 
level = Integer.parseInt(tfLevel.getText()); 
} catch (NumberFormatException e) { 
} 
return level; 
} 

/** 
* 让用户修改游戏难度等级。 
* @param level 修改后的游戏难度等级 
*/ 
public void setLevel(int level) { 
if (level > 0 && level < 11) tfLevel.setText("" + level); 
} 

/** 
* 设置"开始"按钮的状态。 
*/ 
public void setPlayButtonEnable(boolean enable) { 
btPlay.setEnabled(enable); 
} 

public void setPauseButtonLabel(boolean pause) { 
btPause.setText(pause ? "Pause" : "Continue"); 
} 

/** 
* 重置控制面板 
*/ 
public void reset() { 
tfScore.setText("0"); 
plTipBlock.setStyle(0); 
} 

/** 
* 重新计算TipPanel里的boxes[][]里的小框的大小 
*/ 
public void fanning() { 
plTipBlock.fanning(); 
} 

/** 
* 预显窗口的实现细节类 
*/ 
private class TipPanel extends JPanel { 
private Color backColor = Color.darkGray, frontColor = Color.lightGray; 
private ErsBox[][] boxes = 
new ErsBox[ErsBlock.BOXES_ROWS][ErsBlock.BOXES_COLS]; 

private int style, boxWidth, boxHeight; 
private boolean isTiled = false; 

/** 
* 预显窗口类构造函数 
*/ 
public TipPanel() { 
for (int i = 0; i < boxes.length; i++) { 
for (int j = 0; j < boxes[i].length; j++) 
boxes[i][j] = new ErsBox(false); 
} 
} 

/** 
* 预显窗口类构造函数 
* @param backColor Color, 窗口的背景色 
* @param frontColor Color, 窗口的前景色 
*/ 
public TipPanel(Color backColor, Color frontColor) { 
this(); 
this.backColor = backColor; 
this.frontColor = frontColor; 
} 

/** 
* 设置预显窗口的方块样式 
* @param style int,对应ErsBlock类的STYLES中的28个值 
*/ 
public void setStyle(int style) { 
this.style = style; 
repaint(); 
} 

/** 
* 覆盖JComponent类的函数，画组件。 
* @param g 图形设备环境 
*/ 
public void paintComponent(Graphics g) { 
super.paintComponent(g); 

if (!isTiled) fanning(); 

int key = 0x8000; 
for (int i = 0; i < boxes.length; i++) { 
for (int j = 0; j < boxes[i].length; j++) { 
Color color = (((key & style) != 0) ? frontColor : backColor); 
g.setColor(color); 
g.fill3DRect(j * boxWidth, i * boxHeight, 
boxWidth, boxHeight, true); 
key >>= 1; 
} 
} 
} 

/** 
* 根据窗口的大小，自动调整方格的尺寸 
*/ 
public void fanning() { 
boxWidth = getSize().width / ErsBlock.BOXES_COLS; 
boxHeight = getSize().height / ErsBlock.BOXES_ROWS; 
isTiled = true; 
} 
} 

private class ControlKeyListener extends KeyAdapter { 
public void keyPressed(KeyEvent ke) { 
if (!game.isPlaying()) return; 

ErsBlock block = game.getCurBlock(); 
switch (ke.getKeyCode()) { 
case KeyEvent.VK_DOWN: 
block.moveDown(); 
break; 
case KeyEvent.VK_LEFT: 
block.moveLeft(); 
break; 
case KeyEvent.VK_RIGHT: 
block.moveRight(); 
break; 
case KeyEvent.VK_UP: 
block.turnNext(); 
break; 
default: 
break; 
} 
} 
} 
}