Java游戏俄罗斯方块的实现实例

package cn.hncu.games;

import java.awt.color;
import java.awt.font;
import java.awt.graphics;
import java.awt.event.actionevent;
import java.awt.event.actionlistener;
import java.awt.event.keyadapter;
import java.awt.event.keyevent;

import javax.swing.jframe;
import javax.swing.jmenu;
import javax.swing.jmenubar;
import javax.swing.jmenuitem;
import javax.swing.joptionpane;
import javax.swing.jpanel;
import javax.swing.timer;

public class tetris extends jframe {
  private tetrispanel tp;

  public tetris() {
    // 添加菜单，这里只是意思一下，留待大家自己做更详细的
    // 菜单条
    jmenubar menubar = new jmenubar();
    setjmenubar(menubar);
    // 菜单
    jmenu menugame = new jmenu("游戏");
    menubar.add(menugame);
    // 菜单项
    jmenuitem mi1 = new jmenuitem("新游戏");
    mi1.setactioncommand("new");
    jmenuitem mi2 = new jmenuitem("暂停");
    mi2.setactioncommand("pause");
    jmenuitem mi3 = new jmenuitem("继续");
    mi3.setactioncommand("continue");
    jmenuitem mi4 = new jmenuitem("退出");
    mi4.setactioncommand("exit");

    menugame.add(mi1);
    menugame.add(mi2);
    menugame.add(mi3);
    menugame.add(mi4);

    //菜单项监听
    menulistener menulistener = new menulistener();
    mi1.addactionlistener(menulistener);
    mi2.addactionlistener(menulistener);
    mi3.addactionlistener(menulistener);
    mi4.addactionlistener(menulistener);

    // 版本菜单
    jmenu menuhelp = new jmenu("帮助");
    menubar.add(menuhelp);
    menuhelp.add("版本所有@湖南城院 qq:666688888");


    setlocation(700, 200);
    setdefaultcloseoperation(exit_on_close);
    setsize(220, 275);
    setresizable(false);
    tp = new tetrispanel();
    getcontentpane().add(tp);

    // 让整个画布添加键盘监听
    // tp.addkeylistener(tp.listener);//不行,画布不方便获得键盘焦点
    this.addkeylistener(tp.listener); // 让框架来监听键盘
  }

  public static void main(string[] args) {
    tetris te = new tetris();
    te.setvisible(true);
  }

  class menulistener implements actionlistener {
    @override
    public void actionperformed(actionevent e) {
      if(e.getactioncommand().equalsignorecase("new")){
        getcontentpane().remove(tp);
        tp = new tetrispanel();
        getcontentpane().add(tp);
        getcontentpane().validate();//校验当前容器，有刷新功能       
      }else if(e.getactioncommand().equalsignorecase("pause")){
        tp.gettimer().stop();
      }else if(e.getactioncommand().equalsignorecase("continue")){
        tp.gettimer().restart();
      }else if(e.getactioncommand().equalsignorecase("exit")){
        system.exit(0);
      }
    }
  }
}

class tetrispanel extends jpanel {
  private int map[][] = new int[13][23];// map[列号][行号]。真正的方块区是:21行*10列。边框(2列，1行)

  // 方块的形状：
  // 第一维代表方块类型(包括7种:s、z、l、j、i、o、t)
  // 第二维代表旋转次数
  // 第三四维代表方块矩阵
  // shapes[type][turnstate][i] i--> block[i/4][i%4]
  int shapes[][][] = new int[][][] {
  /*
   * 模板 { {0,0,0,0,0,0,0,0, 0,0,0,0, 0,0,0,0}, {0,0,0,0,0,0,0,0, 0,0,0,0,
   * 0,0,0,0}, {0,0,0,0,0,0,0,0, 0,0,0,0, 0,0,0,0}, {0,0,0,0,0,0,0,0, 0,0,0,0,
   * 0,0,0,0} }
   */
      // i (※把版本1中的横条从第1行换到第2行)
      { { 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, 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 } },
      // z 第3行: shapes[2][2][]
      { { 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 } } };

  private int type;
  private int turnstate;
  private int x, y;// 当前块的位置---左上角的坐标
  private int score = 0;
  private timer timer = null;
  private int delay = 1000;

  timerlistener listener = null;

  public tetrispanel() {
    newgame();
    nextblock();

    listener = new timerlistener();
    timer = new timer(delay, listener);
    timer.start();

  }

  private void newgame() {
    // 初始化游戏地图
    for (int i = 0; i < 12; i++) {
      for (int j = 0; j < 21; j++) {
        if (i == 0 || i == 11) {// 边框
          map[i][j] = 3;
        } else {
          map[i][j] = 0;
        }
      }
      map[i][21] = 3;
    }
    score = 0;
  }

  private void nextblock() {
    type = (int) (math.random() * 1000) % 7; // type=5;
    turnstate = (int) (math.random() * 1000) % 4; // turnstate=3;
    x = 4;
    y = 0;
    if (crash(x, y, type, turnstate) == 0) {
      timer.stop();
      int op = joptionpane.showconfirmdialog(null,
          "game over!....笨蛋，敢再来一局吗?!");
      if (op == joptionpane.yes_option) {
        newgame();
      } else if (op == joptionpane.no_option) {
        system.exit(0);
      }
    }
  }

  private void down() {
    if (crash(x, y + 1, type, turnstate) == 0) {// 判断当前块往下落一格后是否和地图存在填充块完全重合---注意实参:y+1
      add(x, y, type, turnstate);// 把该块加到地图---形成堆积块
      nextblock();
    } else {
      y++;
    }
    repaint();
  }

  private void left() {
    if (x >= 0) {
      x -= crash(x - 1, y, type, turnstate);
    }
    repaint();
  }

  private void right() {
    if (x < 8) {
      x += crash(x + 1, y, type, turnstate);
    }
    repaint();
  }

  private void turn() {
    if (crash(x, y, type, (turnstate + 1) % 4) == 1) {
      turnstate = (turnstate + 1) % 4;
    }
    repaint();
  }

  // 让一个块堆积，其实是把当前块中的填充块信息记录到map[][]中
  private void add(int x, int y, int type, int turnstate) {
    for (int a = 0; a < 4; a++) {
      for (int b = 0; b < 4; b++) {
        if (shapes[type][turnstate][a * 4 + b] == 1) {
          map[x + b + 1][y + a] = 1;
        }
      }
    }
    trydelline();
  }

  // 消块
  private void trydelline() {
    // 从上往下，一行行依次遍历，如果某一行的map[i][j]值全是1，则把这一行消掉---上一行往下落
    for (int b = 0; b < 21; b++) {
      int c = 1;
      for (int a = 0; a < 12; a++) {
        c &= map[a][b];
      }
      if (c == 1) {// 全是1--下落一行
        score += 10;
        for (int d = b; d > 0; d--) {
          for (int e = 0; e < 11; e++) {
            map[e][d] = map[e][d - 1];
          }
        }

        // 更改游戏的难度(加快下落速度)
        delay /= 2;
        timer.setdelay(delay);
      }

    }

  }

  private int crash(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] & map[x + b + 1][y
            + a]) == 1) {// 和填充块或框架重合，都算碰撞
          return 0; // 碰撞了---方块的填充块和地图中的填充块完全重合
        }
      }
    }
    return 1;// 没有碰撞
  }

  // 表现层
  @override
  public void paint(graphics g) {
    super.paint(g);// 清除残影

    // 画当前块
    for (int j = 0; j < 16; j++) {
      if (shapes[type][turnstate][j] == 1) {
        g.setcolor(color.green);
        g.fillrect((j % 4 + x + 1) * 10, (j / 4 + y) * 10, 10, 10);
      }
    }

    /*
     * for(int a=0;a<4;a++){ for(int b=0;b<4;b++){
     * if(shapes[type][turnstate][a*4+b]==1){ g.fillrect((b+x+1)*10,
     * (a+y)*10, 10, 10); } } }
     */

    // 画地图(整个游戏的方块区和边框)
    for (int i = 0; i < 12; i++) {
      for (int j = 0; j < 22; j++) {
        if (map[i][j] == 1) {
          g.setcolor(color.red);
          g.fillrect(i * 10, j * 10, 10, 10);// 填充

          g.setcolor(color.yellow);
          g.drawrect(i * 10, j * 10, 10, 10);// 格线
        } else if (map[i][j] == 3) {
          g.setcolor(color.red);
          g.drawrect(i * 10, j * 10, 10, 10);
        }
      }
    }

    // 显示分数，同时为版面美观，在界面上再加点东西
    // 画方块区右侧部分
    g.setcolor(color.blue);
    g.setfont(new font("aa", font.bold, 18));
    g.drawstring("score=" + score, 130, 20);

    g.setfont(new font("aa", font.plain, 13));
    g.drawstring("拒绝盗版游戏", 130, 70);
    g.drawstring("注意自我保护", 130, 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);

  }

  class timerlistener extends keyadapter implements actionlistener {
    @override
    public void actionperformed(actionevent e) {
      down();
    }

    @override
    public void keypressed(keyevent e) {
      // system.out.println("aaaaa");
      switch (e.getkeycode()) {
      case keyevent.vk_down:
        down();
        break;
      case keyevent.vk_left:
        left();
        break;
      case keyevent.vk_right:
        right();
        break;
      case keyevent.vk_up:
        turn();
      }
    }

  }

  public timer gettimer() {
    return timer;
  }
}