tetris.java

Java写的俄罗斯方块

/**
 *俄罗斯方块v1.0
 *
 *我的第一个Java程序，类写得很烂，望不吝赐教。
 *
 *本人近来对Java颇感兴趣，希望能和众Java爱好者多多交流。
 *
 *		By csdn [nothing]
 *				Email: [e-mail]
 *												2001.8.16
 */
import java.awt.*;
import java.awt.event.*;
import java.applet.*;

public class Tetris extends Applet {
	public Game game;
	public int
		Offset_x	= 40,
		Offset_y	= 30;

	public void init() {
		this.setLayout(null);
		this.setBackground(Color.white);
		game = new Game(this, Offset_x, Offset_y);
		game.init();
	}

	public void start() {

	}

	public void paint(Graphics g) {
		if(game.getHasInit()) game.repaint();
	}
	
	public static void main(String[] args) {
		Tetris applet = new Tetris();
		Frame aFrame = new Frame("俄罗斯方块v1.0 By[csdn_nothing]");
		aFrame.addWindowListener(
			new WindowAdapter() {
				public void windowClosing(WindowEvent e) {
					System.exit(0);
				}
			});
		aFrame.add(applet, BorderLayout.CENTER);
		aFrame.setSize(250, 400);
		applet.init();
		applet.start();
		aFrame.setVisible(true);
	}
}

//游戏控制入口
class Game extends ActionThread {
	private boolean	hasInit = false;
	private boolean	hasPause = false;
	private boolean	hasStart = false;
	private Label	labScore, labLevel;
	private Label	labConstTextScore, labConstTextLevel, labConstTextNextObject;
	private Button	btnStart, btnReset;
	private int		nextFigure;
	private String	msg;
	private Color	msgColor = Color.red;	//显示的消息的颜色
	private Color	constTextColor = Color.blue;	//标题颜色
	private Color	infoBgColor = Color.lightGray;
	private Color	infoColor = Color.red;

	public Game(Tetris mainForm, int x, int y) {
		super(mainForm, x, y);
	}
	public int getCtrlPanelX() { return getOffset_x()+getWorkPiexWidth()+10;}
	public int getCtrlPanelY() { return getOffset_y();}
	public boolean getHasInit() { return hasInit;}
	public void init() {
		if(hasInit) return;
		hasInit = true;
		hasPause = false;
		nextFigure = (int)(Math.random()*tBlock.getMaxFigureNumber()*10) % tBlock.getMaxFigureNumber();
		
		labConstTextScore = new Label("得分:");
		labConstTextScore.setBounds(getCtrlPanelX(), getCtrlPanelY()+15, 55, 20);
		labConstTextScore.setForeground(constTextColor);
		labScore = new Label("0");
		labScore.setBackground(infoBgColor);
		labScore.setBounds(getCtrlPanelX(), getCtrlPanelY()+35, 55, 20);
		labScore.setForeground(infoColor);
		
		labConstTextLevel = new Label("级别:");
		labConstTextLevel.setBounds(getCtrlPanelX(), getCtrlPanelY()+65, 55, 20);
		labConstTextLevel.setForeground(constTextColor);
		labLevel = new Label("1");
		labLevel.setBackground(infoBgColor);
		labLevel.setBounds(getCtrlPanelX(), getCtrlPanelY()+85, 55, 20);
		labLevel.setForeground(infoColor);
		
		labConstTextNextObject = new Label("下一个:");
		labConstTextNextObject.setBounds(getCtrlPanelX(), getCtrlPanelY()+140, 55, 20);
		labConstTextNextObject.setForeground(constTextColor);

		btnStart = new Button("开始");
		btnStart.setBounds(getCtrlPanelX(), getCtrlPanelY()+getWorkPiexHeight()-30, 55, 25);
		btnReset = new Button("重来");
		btnReset.setBounds(getCtrlPanelX(), getCtrlPanelY()+getWorkPiexHeight()-60, 55, 25);
		btnReset.setEnabled(false);
		
	    btnReset.addKeyListener(new KeyAdapter() {
	            public void keyPressed(KeyEvent e) {
	                handleKeyEvent(e);
	            }
			});
		btnReset.addActionListener(
			new ActionListener() {
				public void actionPerformed(ActionEvent e) {
					gamereset();
				}
			});
		
	    btnStart.addKeyListener(new KeyAdapter() {
	            public void keyPressed(KeyEvent e) {
	                handleKeyEvent(e);
	            }
			});
		btnStart.addActionListener(
			new ActionListener() {
				public void actionPerformed(ActionEvent e) {
					if(!hasStart) {
						play();
						btnStart.setLabel("暂停");
					} else
						if(hasPause) {
							play();
							btnStart.setLabel("暂停");
						} else {
							pause();
							btnStart.setLabel("开始");
						}
					btnReset.setEnabled(hasStart);
				}
			});
	    mainForm.addKeyListener(new KeyAdapter() {
	            public void keyPressed(KeyEvent e) {
	                handleKeyEvent(e);
	            }
			});
		mainForm.add(labScore);
		mainForm.add(labLevel);
		mainForm.add(btnReset);
		mainForm.add(btnStart);
		mainForm.add(labConstTextScore);
		mainForm.add(labConstTextLevel);
		mainForm.add(labConstTextNextObject);
	}
	public void play() {
		if(!hasStart) start();
		hasPause = false;
		hasStart = true;
	}
	public void pause() {
		hasPause = true;
	}
	public void gamereset() {
		super.reset();
		hasPause = true;
		nextFigure = (int)(Math.random()*tBlock.getMaxFigureNumber()*10) % tBlock.getMaxFigureNumber();
		newObject(objectColor, nextFigure);
		nextFigure = (int)(Math.random()*tBlock.getMaxFigureNumber()*10) % tBlock.getMaxFigureNumber();
		repaint();
		score = 0;
		level = 1;
		showlevel(level);
		showscore(score);
		play();
	}

	public void run() {
		showmsg("开始新游戏...");
		System.out.print("Game started!\n");
		mySleep(1000);
		clearAndrepaint();

		score = 0;
		level = 1;
		//hasStart = true;
		//hasPause = false;
		if(!newObject(objectColor, nextFigure)) return;
		nextFigure = (int)(Math.random()*tBlock.getMaxFigureNumber()*10) % tBlock.getMaxFigureNumber();
		showNextObject(nextFigure);
		while(true) {
			if(hasPause) continue;
			mySleep(downSpeed);
			if(!moveObject(mdDown)) {	//can't down
				writeGlassWorkSheet(Sheet_x, Sheet_y, tBlock.getFigureWorkSheet());
				int[] Lines = getLines();
				int maxLine = 0;
				int onetimeDelLines = 0;	//一次所消行数
				for(int i = 0; i < Lines.length; i++) {
					if(Lines[i] != 0) {
						delLine(Lines[i]);
						if(maxLine < Lines[i]) maxLine = Lines[i];
						onetimeDelLines++;
					}
				}
				if(onetimeDelLines > tBlock.getMaxCornerNumber())
					onetimeDelLines = tBlock.getMaxCornerNumber();
				score += onetimeToScore[onetimeDelLines];
				showscore(score);
				if(score >= levelSpeed[0][level]) {
					level++;
					showlevel(level);
					showmsg("第 " + Integer.toString(level) + " 关!");
					mySleep(1000);
					clearAndrepaint();
					downSpeed = levelSpeed[1][level];
				}
				if(level > maxLevel) {
					showmsg("恭喜，您玩通关了！");
					return;
				}
				if(maxLine > 0) repaint(maxLine);
				if(!newObject(objectColor, nextFigure)) break;
				nextFigure = (int)(Math.random()*tBlock.getMaxFigureNumber()*10) % tBlock.getMaxFigureNumber();
				showNextObject(nextFigure);
			}
		}
	}
	public void showscore(int theScore) {
		labScore.setText(Integer.toString(theScore));
	}
	public void showlevel(int theLevel) {
		labLevel.setText(Integer.toString(theLevel));
	}
	public void showNextObject(int Figure) {
		Graphics g = mainForm.getGraphics();
		g.setColor(Color.blue);
		tBlock.drawMyObject(getCtrlPanelX(), getCtrlPanelY()+165, g, Figure);
    }
    public void showmsg(String s) {
    	msg = s;
    	Graphics g = mainForm.getGraphics();
    	g.setColor(msgColor);
    	g.drawString(msg, getOffset_x(), getOffset_y()+10);
    }
    public void clearAndrepaint() {
    	mainForm.getGraphics().clearRect(getOffset_x(), getOffset_y(),
    										getWorkPiexWidth(), getWorkPiexHeight());
		repaint();
    }
    public void mySleep(int t) {
		try {
			sleep(t);
		} catch(InterruptedException e) {}
    }

	public void repaint() {
		super.repaint();
		if(hasStart) showNextObject(nextFigure);
	}
	public void handleKeyEvent(KeyEvent e) {
		if(!hasInit || hasPause)
			return;
		if(e.getKeyCode() == e.VK_LEFT)
			moveObject(mdLeft);
		else if(e.getKeyCode() == e.VK_DOWN)
			moveObject(mdDown);
		else if(e.getKeyCode() == e.VK_RIGHT)
			moveObject(mdRight);
		else if(e.getKeyCode() == e.VK_UP)
			turn();
	}
}

//动作线程
class ActionThread extends Thread {
	protected int
		mdLeft = 0,
		mdDown = 1,
		mdRight = 2;
	private int
		GlassHeight	= 28,	//背景高(n方块)
		GlassWidth	= 10;	//背景宽(n方块)
	private int
		Offset_x	= 0,	//背景位置(x像素)
		Offset_y	= 0;	//背景位置(y像素)
	protected int downSpeed = 500;	//下落速度(越大越慢)
	private boolean lockObject = false;
	protected Color backgroundColor = Color.lightGray;
	protected Color objectColor = Color.blue;
	private byte[][] GlassWorkSheet = new byte[GlassHeight][GlassWidth];
	protected int Sheet_x, Sheet_y;
	private int currFigure;
	
	protected int score;
	protected int level;
	protected int[][] levelSpeed = new int[][] {
						{	0,	1000,	2000,	3000,	4000,	5000,	6000,	0	},	//score
						{	0,	500,	400,	300,	200,	100,	50,		0	}	//speed
					};
	protected int maxLevel = levelSpeed[0].length - 2;
	protected int[] onetimeToScore = new int[] {
							0,	100, 300, 500, 1000		//同时消0-4行所得分数
					};

	protected TetrisBlock tBlock;
	protected Tetris mainForm;

	public ActionThread(Tetris mainForm, int x, int y) {
		this.mainForm = mainForm;
		Offset_x = x;
		Offset_y = y;
		tBlock = new TetrisBlock(mainForm);
		tBlock.setBackgroundColor(backgroundColor);
		reset();
		System.out.print("Thread creating...\n");
	}
	public int getScore() { return score;}
	public int getLevel() { return level;}
	public int getWorkPiexWidth() { return GlassWidth*tBlock.getBlockWidth();}
	public int getWorkPiexHeight() { return GlassHeight*tBlock.getBlockHeight();}
	public int getOffset_x() { return Offset_x;}
	public int getOffset_y() { return Offset_y;}

	public void reset() {
		for(int y = 0; y < GlassHeight; y++)
			for(int x = 0; x < GlassWidth; x++)
				GlassWorkSheet[y][x] = 0;
	}
	public void repaint(int pos) {
		if((pos < 0) || (pos >= GlassHeight)) return;
		Color oldColor;
		Graphics g = mainForm.getGraphics();
		int w = tBlock.getBlockWidth();
		int h = tBlock.getBlockHeight();
		//g.clearRect(Offset_x, Offset_y, GlassWidth*w, GlassHeight*h);
		for(int y = 0; (y <= pos) || (y < GlassHeight); y++)
			for(int x = 0; x < GlassWidth; x++) {
				oldColor = g.getColor();
				if(GlassWorkSheet[y][x] == 1) {
					g.setColor(objectColor);
					g.fill3DRect(Offset_x+x*w, Offset_y+y*h, w-1, h-1, true);
				}
				else {
					g.setColor(backgroundColor);
					g.fillRect(Offset_x+x*w, Offset_y+y*h, w-1, h-1);
				}
				g.setColor(oldColor);
			}
	}