/**
* File: ErsBlocksGame.java
* User: Administrator
* Date: Jan 15, 2003
* Describe: 俄罗斯方块的 Java 实现
*/
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
/**
* 游戏主类，继承自JFrame类，负责游戏的全局控制。
* 内含
* 1, 一个GameCanvas画布类的实例引用，
* 2, 一个保存当前活动块(ErsBlock)实例的引用，
* 3, 一个保存当前控制面板（ControlPanel）实例的引用;
*/
public class ErsBlocksGame extends JFrame {
/**
* 每填满一行计多少分
*/
public final static int PER_LINE_SCORE = 100;
/**
* 积多少分以后能升级
*/
public final static int PER_LEVEL_SCORE = PER_LINE_SCORE * 20;
/**
* 最大级数是10级
*/
public final static int MAX_LEVEL = 10;
/**
* 默认级数是5
*/
public final static int DEFAULT_LEVEL = 5;
private GameCanvas canvas;
private ErsBlock block;
private boolean playing = false;
private ControlPanel ctrlPanel;
private JMenuBar bar = new JMenuBar();
private JMenu
mGame = new JMenu("Game"),
mControl = new JMenu("Control"),
mWindowStyle = new JMenu("WindowStyle"),
mInfo = new JMenu("Information");
private JMenuItem
miNewGame = new JMenuItem("New Game"),
miSetBlockColor = new JMenuItem("Set Block Color ..."),
miSetBackColor = new JMenuItem("Set Background Color ..."),
miTurnHarder = new JMenuItem("Turn up the level"),
miTurnEasier = new JMenuItem("Turn down the level"),
miExit = new JMenuItem("Eixt"),
miPlay = new JMenuItem("Play"),
miPause = new JMenuItem("Pause"),
miResume = new JMenuItem("Resume"),
miStop = new JMenuItem("Stop"),
miAuthor = new JMenuItem("Author : apple@radiantek.com"),
miSourceInfo = new JMenuItem("You can get the source code / document by email");
private JCheckBoxMenuItem
miAsWindows = new JCheckBoxMenuItem("Windows"),
miAsMotif = new JCheckBoxMenuItem("Motif"),
miAsMetal = new JCheckBoxMenuItem("Metal", true);
/**
* 主游戏类的构造函数
* @param title String，窗口标题
*/
public ErsBlocksGame(String title) {
super(title);
setSize(315, 392);
Dimension scrSize = Toolkit.getDefaultToolkit().getScreenSize();
setLocation((scrSize.width - getSize().width) / 2,
(scrSize.height - getSize().height) / 2);
createMenu();
Container container = getContentPane();
container.setLayout(new BorderLayout(6, 0));
canvas = new GameCanvas(20, 12);
ctrlPanel = new ControlPanel(this);
container.add(canvas, BorderLayout.CENTER);
container.add(ctrlPanel, BorderLayout.EAST);
addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent we) {
stopGame();
System.exit(0);
}
});
addComponentListener(new ComponentAdapter() {
public void componentResized(ComponentEvent ce) {
canvas.fanning();
}
});
show();
canvas.fanning();
}
/**
* 让游戏“复位”
*/
public void reset() {
ctrlPanel.reset();
canvas.reset();
}
/**
* 判断游戏是否还在进行
* @return boolean, true-还在运行，false-已经停止
*/
public boolean isPlaying() {
return playing;
}
/**
* 得到当前活动的块
* @return ErsBlock, 当前活动块的引用
*/
public ErsBlock getCurBlock() {
return block;
}
/**
* 得到当前画布
* @return GameCanvas, 当前画布的引用
*/
public GameCanvas getCanvas() {
return canvas;
}
/**
* 开始游戏
*/
public void playGame() {
play();
ctrlPanel.setPlayButtonEnable(false);
miPlay.setEnabled(false);
ctrlPanel.requestFocus();
}
/**
* 游戏暂停
*/
public void pauseGame() {
if (block != null) block.pauseMove();
ctrlPanel.setPauseButtonLabel(false);
miPause.setEnabled(false);
miResume.setEnabled(true);
}
/**
* 让暂停中的游戏继续
*/
public void resumeGame() {
if (block != null) block.resumeMove();
ctrlPanel.setPauseButtonLabel(true);
miPause.setEnabled(true);
miResume.setEnabled(false);
ctrlPanel.requestFocus();
}
/**
* 用户停止游戏
*/
public void stopGame() {
playing = false;
if (block != null) block.stopMove();
miPlay.setEnabled(true);
miPause.setEnabled(true);
miResume.setEnabled(false);
ctrlPanel.setPlayButtonEnable(true);
ctrlPanel.setPauseButtonLabel(true);
}
/**
* 得到当前游戏者设置的游戏难度
* @return int, 游戏难度1－MAX_LEVEL
*/
public int getLevel() {
return ctrlPanel.getLevel();
}
/**
* 让用户设置游戏难度
* @param level int, 游戏难度1－MAX_LEVEL
*/
public void setLevel(int level) {
if (level < 11 && level > 0) ctrlPanel.setLevel(level);
}
/**
* 得到游戏积分
* @return int, 积分。
*/
public int getScore() {
if (canvas != null) return canvas.getScore();
return 0;
}
/**
* 得到自上次升级以来的游戏积分，升级以后，此积分清零
* @return int, 积分。
*/
public int getScoreForLevelUpdate() {
if (canvas != null) return canvas.getScoreForLevelUpdate();
return 0;
}
/**
* 当分数累计到一定的数量时，升一次级
* @return boolean, ture-update successufl, false-update fail
*/
public boolean levelUpdate() {
int curLevel = getLevel();
if (curLevel < MAX_LEVEL) {
setLevel(curLevel + 1);
canvas.resetScoreForLevelUpdate();
return true;
}
return false;
}
/**
* 游戏开始
*/
private void play() {
reset();
playing = true;
Thread thread = new Thread(new Game());
thread.start();
}
/**
* 报告游戏结束了
*/
private void reportGameOver() {
JOptionPane.showMessageDialog(this, "Game Over!");
}
/**
* 建立并设置窗口菜单
*/
private void createMenu() {
bar.add(mGame);
bar.add(mControl);
bar.add(mWindowStyle);
bar.add(mInfo);
mGame.add(miNewGame);
mGame.addSeparator();
mGame.add(miSetBlockColor);
mGame.add(miSetBackColor);
mGame.addSeparator();
mGame.add(miTurnHarder);
mGame.add(miTurnEasier);
mGame.addSeparator();
mGame.add(miExit);
mControl.add(miPlay);
mControl.add(miPause);
mControl.add(miResume);
mControl.add(miStop);
mWindowStyle.add(miAsWindows);
mWindowStyle.add(miAsMotif);
mWindowStyle.add(miAsMetal);
mInfo.add(miAuthor);
mInfo.add(miSourceInfo);
setJMenuBar(bar);
miPause.setAccelerator(
KeyStroke.getKeyStroke(KeyEvent.VK_P, KeyEvent.CTRL_MASK));
miResume.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_ENTER, 0));
miNewGame.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
stopGame();
reset();
setLevel(DEFAULT_LEVEL);
}
});
miSetBlockColor.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
Color newFrontColor =
JColorChooser.showDialog(ErsBlocksGame.this,
"Set color for block", canvas.getBlockColor());
if (newFrontColor != null)
canvas.setBlockColor(newFrontColor);
}
});
miSetBackColor.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
Color newBackColor =
JColorChooser.showDialog(ErsBlocksGame.this,
"Set color for block", canvas.getBackgroundColor());
if (newBackColor != null)
canvas.setBackgroundColor(newBackColor);
}
});
miTurnHarder.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
int curLevel = getLevel();
if (curLevel < MAX_LEVEL) setLevel(curLevel + 1);
}
});
miTurnEasier.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
int curLevel = getLevel();
if (curLevel > 1) setLevel(curLevel - 1);
}
});
miExit.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
System.exit(0);
}
});
miPlay.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
playGame
