(转)发布一个Java写的俄罗斯方块源码 算法简单(300行) 注释详细

转自：http://topic.youkuaiyun.com/u/20100612/03/A8D7B257-4385-4BB8-82FF-4A51AC3BD810.html

 

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; 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 private int blockType; private int score = 0; 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 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 public int gameover(int x, int y) { if (blow(x, y, blockType, turnState) == 0) { return 1; } return 0; } // 把当前添加map 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 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; } ; } } }