Java俄罗斯方块实现代码详解编程语言

package com.game; 
 
import java.awt.*; 
import java.awt.event.ActionEvent; 
import java.awt.event.ActionListener; 
import java.awt.event.KeyEvent; 
import java.awt.event.KeyListener; 
import javax.swing.*; 
import javax.swing.Timer; 
/** 
 * 俄罗斯方块 
 * @author ××× 
 * 
 */ 
public class Tetris extends JFrame { 
    public Tetris() { 
        Tetrisblok a = new Tetrisblok(); 
        addKeyListener(a); 
        add(a); 
    } 
 
    public static void main(String[] args) { 
        Tetris frame = new Tetris(); 
        JMenuBar menu = new JMenuBar(); 
        frame.setJMenuBar(menu); 
        JMenu game = new JMenu("游戏"); 
        JMenuItem newgame = game.add("新游戏"); 
        JMenuItem pause = game.add("暂停"); 
        JMenuItem goon = game.add("继续"); 
        JMenuItem exit = game.add("退出"); 
        JMenu help = new JMenu("帮助"); 
        JMenuItem about = help.add("关于"); 
        menu.add(game); 
        menu.add(help); 
        frame.setLocationRelativeTo(null); 
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
        frame.setSize(220, 275); 
        frame.setTitle("Tetris内测版"); 
        // frame.setUndecorated(true); 
        frame.setVisible(true); 
        frame.setResizable(false); 
 
    } 
} 
 
// 创建一个俄罗斯方块类 
class Tetrisblok extends JPanel implements KeyListener { 
 
    // blockType 代表方块类型 
    // turnState代表方块状态 
	/** 
	 * 代表方块类型 
	 */ 
    private int blockType; 
    private int score = 0; 
 
    /** 
     * 代表方块状态 
     */ 
    private int turnState; 
 
    private int x; 
 
    private int y; 
 
    private int i = 0; 
 
    int j = 0; 
    int flag = 0; 
    // 定义已经放下的方块x=0-11,y=0-21; 
    int[][] map = new int[13][23]; 
 
    // 方块的形状 第一组代表方块类型有S、Z、L、J、I、O、T 7种 第二组 代表旋转几次 第三四组为 方块矩阵 
    private final int shapes[][][] = new int[][][] { 
    // i 
            { { 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0 }, 
                    { 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0 }, 
                    { 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0 }, 
                    { 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0 } }, 
            // s 
            { { 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 
                    { 1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0 }, 
                    { 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 
                    { 1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0 } }, 
            // z 
            { { 1, 1, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 
                    { 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0 }, 
                    { 1, 1, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 
                    { 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0 } }, 
            // j 
            { { 0, 1, 0, 0, 0, 1, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0 }, 
                    { 1, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 
                    { 1, 1, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0 }, 
                    { 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 } }, 
            // o 
            { { 1, 1, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 
                    { 1, 1, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 
                    { 1, 1, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 
                    { 1, 1, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } }, 
            // l 
            { { 1, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0 }, 
                    { 1, 1, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 
                    { 1, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0 }, 
                    { 0, 0, 1, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 } }, 
            // t 
            { { 0, 1, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 
                    { 0, 1, 0, 0, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0 }, 
                    { 1, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 
                    { 0, 1, 0, 0, 0, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0 } } }; 
 
    /** 
     * 生成新方块的方法 
     */ 
    public void newblock() { 
        blockType = (int) (Math.random() * 1000) % 7; 
        turnState = (int) (Math.random() * 1000) % 4; 
        x = 4; 
        y = 0; 
        if (gameover(x, y) == 1) { 
 
            newmap(); 
            drawwall(); 
            score = 0; 
            JOptionPane.showMessageDialog(null, "GAME OVER"); 
        } 
    } 
 
    /** 
     * 画围墙 
     */ 
    public void drawwall() { 
        for (i = 0; i < 12; i++) { 
            map[i][21] = 2; 
        } 
        for (j = 0; j < 22; j++) { 
            map[11][j] = 2; 
            map[0][j] = 2; 
        } 
    } 
 
    /** 
     * 初始化地图 
     */ 
    public void newmap() { 
        for (i = 0; i < 12; i++) { 
            for (j = 0; j < 22; j++) { 
                map[i][j] = 0; 
            } 
        } 
    } 
 
    /** 
     * 初始化构造方法 
     */ 
    Tetrisblok() { 
        newblock(); 
        newmap(); 
        drawwall(); 
        Timer timer = new Timer(1000, new TimerListener()); 
        timer.start(); 
    } 
 
    /** 
     * 旋转的方法 
     */ 
    public void turn() { 
        int tempturnState = turnState; 
        turnState = (turnState + 1) % 4; 
        if (blow(x, y, blockType, turnState) == 1) { 
        } 
        if (blow(x, y, blockType, turnState) == 0) { 
            turnState = tempturnState; 
        } 
        repaint(); 
    } 
 
    /** 
     * 左移的方法 
     */ 
    public void left() { 
        if (blow(x - 1, y, blockType, turnState) == 1) { 
            x = x - 1; 
        } 
        ; 
        repaint(); 
    } 
 
    /** 
     * 右移的方法 
     */ 
    public void right() { 
        if (blow(x + 1, y, blockType, turnState) == 1) { 
            x = x + 1; 
        } 
        ; 
        repaint(); 
    } 
 
    /** 
     * 下落的方法 
     */ 
    public void down() { 
        if (blow(x, y + 1, blockType, turnState) == 1) { 
            y = y + 1; 
            delline(); 
        } 
        ; 
        if (blow(x, y + 1, blockType, turnState) == 0) { 
            add(x, y, blockType, turnState); 
            newblock(); 
            delline(); 
        } 
        ; 
        repaint(); 
    } 
 
    /** 
     * 是否合法的方法 
     * @param x 
     * @param y 
     * @param blockType 
     * @param turnState 
     * @return 
     */ 
    public int blow(int x, int y, int blockType, int turnState) { 
        for (int a = 0; a < 4; a++) { 
            for (int b = 0; b < 4; b++) { 
                if (((shapes[blockType][turnState][a * 4 + b] == 1) && (map[x 
                        + b + 1][y + a] == 1)) 
                        || ((shapes[blockType][turnState][a * 4 + b] == 1) && (map[x 
                                + b + 1][y + a] == 2))) { 
 
                    return 0; 
                } 
            } 
        } 
        return 1; 
    } 
 
    /** 
     * 消行的方法 
     */ 
    public void delline() { 
        int c = 0; 
        for (int b = 0; b < 22; b++) { 
            for (int a = 0; a < 12; a++) { 
                if (map[a][b] == 1) { 
 
                    c = c + 1; 
                    if (c == 10) { 
                        score += 10; 
                        for (int d = b; d > 0; d--) { 
                            for (int e = 0; e < 11; e++) { 
                                map[e][d] = map[e][d - 1]; 
 
                            } 
                        } 
                    } 
                } 
            } 
            c = 0; 
        } 
    } 
 
    /** 
     * 判断你挂的方法 
     * @param x 
     * @param y 
     * @return 
     */ 
    public int gameover(int x, int y) { 
        if (blow(x, y, blockType, turnState) == 0) { 
            return 1; 
        } 
        return 0; 
    } 
 
    /** 
     * 把当前添加map 
     * @param x 
     * @param y 
     * @param blockType 
     * @param turnState 
     */ 
    public void add(int x, int y, int blockType, int turnState) { 
        int j = 0; 
        for (int a = 0; a < 4; a++) { 
            for (int b = 0; b < 4; b++) { 
                if (map[x + b + 1][y + a] == 0) { 
                    map[x + b + 1][y + a] = shapes[blockType][turnState][j]; 
                } 
                ; 
                j++; 
            } 
        } 
    } 
 
    /** 
     * 画方块的的方法 
     */ 
    public void paintComponent(Graphics g) { 
        super.paintComponent(g); 
        // 画当前方块 
        for (j = 0; j < 16; j++) { 
            if (shapes[blockType][turnState][j] == 1) { 
                g.fillRect((j % 4 + x + 1) * 10, (j / 4 + y) * 10, 10, 10); 
            } 
        } 
        // 画已经固定的方块 
        for (j = 0; j < 22; j++) { 
            for (i = 0; i < 12; i++) { 
                if (map[i][j] == 1) { 
                    g.fillRect(i * 10, j * 10, 10, 10); 
 
                } 
                if (map[i][j] == 2) { 
                    g.drawRect(i * 10, j * 10, 10, 10); 
 
                } 
            } 
        } 
        g.drawString("score=" + score, 125, 10); 
        g.drawString("抵制不良游戏，", 125, 50); 
        g.drawString("拒绝盗版游戏。", 125, 70); 
        g.drawString("注意自我保护，", 125, 90); 
        g.drawString("谨防受骗上当。", 125, 110); 
        g.drawString("适度游戏益脑，", 125, 130); 
        g.drawString("沉迷游戏伤身。", 125, 150); 
        g.drawString("合理安排时间，", 125, 170); 
        g.drawString("享受健康生活。", 125, 190); 
    } 
 
    /** 
     * 键盘监听 
     */ 
    public void keyPressed(KeyEvent e) { 
        switch (e.getKeyCode()) { 
        case KeyEvent.VK_DOWN: 
            down(); 
            break; 
        case KeyEvent.VK_UP: 
            turn(); 
            break; 
        case KeyEvent.VK_RIGHT: 
            right(); 
            break; 
        case KeyEvent.VK_LEFT: 
            left(); 
            break; 
        } 
 
    } 
 
    // 无用 
    public void keyReleased(KeyEvent e) { 
    } 
 
    // 无用 
    public void keyTyped(KeyEvent e) { 
    } 
 
    /** 
     * 定时器监听 
     * @author *** 
     * 
     */ 
    class TimerListener implements ActionListener { 
        public void actionPerformed(ActionEvent e) { 
 
            repaint(); 
            if (blow(x, y + 1, blockType, turnState) == 1) { 
                y = y + 1; 
                delline(); 
            } 
            ; 
            if (blow(x, y + 1, blockType, turnState) == 0) { 
 
                if (flag == 1) { 
                    add(x, y, blockType, turnState); 
                    delline(); 
                    newblock(); 
                    flag = 0; 
                } 
                flag = 1; 
            } 
            ; 
        } 
    } 
}