modelcanvas.java~9~

一款基于j2me技术的手机版游戏——飞机射击

/**
 * <p>Title: 模块</p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2004</p>
 * <p>Company: jams</p>
 * @author jams
 * @version 1.0
 */

import java.util.*;
import javax.microedition.lcdui.*;
import javax.microedition.rms.*;
import java.io.InputStream;
import java.io.DataInputStream;
import java.io.IOException;

public final class ModelCanvas
    extends Canvas
    implements Runnable, CommandListener {
  ModelMIDlet game;
  private Thread gameThread;

//  private MyMissile mymiss ;
  private MyShip myShip = new MyShip();
  private int  myMissileCount;
  private MyMissile[] myMiss = new MyMissile[]{
      new MyMissile(),
      new MyMissile(),
  } ;
  private int  ufoCount;
  private int  ufoMissCount;
  private Image[] img_map = null; //地图
  private int ay = 0;
  private Image Map = null; //地图 //背景地图
  private UFO[] ufos = new UFO[]{
      new UFO(myShip),
      new UFO(myShip),
      new UFO(myShip),
      new UFO(myShip),
      new UFO(myShip),
      new UFO(myShip),
      new UFO(myShip),
      new UFO(myShip),
      new UFO(myShip),
      new UFO(myShip),

  } ;
  private UfoMissile[] ufoMiss = new UfoMissile[]{
      new UfoMissile(),
      new UfoMissile(),

  } ;
  private long score ;
  private int life;
  private int tickCount;
  private Random random = new Random();
  private boolean isGameover;
  // Fields
  public static final int KEY_SOFTKEY1 = -6;
  public static final int KEY_SOFTKEY2 = -7;
  public static final int KEY_SEND = -10;
  public static final int KEY_END = -11;
  public static final int KEY_SOFTKEY3 = -5;
  public static final int KEY_UP_ARROW = -1;
  public static final int KEY_DOWN_ARROW = -2;
  public static final int KEY_LEFT_ARROW = -3;
  public static final int KEY_RIGHT_ARROW = -4;
  Command left_command = new Command("确定", Command.SCREEN, 1);
  Command right_command = new Command("返回", Command.SCREEN, 2);
  //rms
  RecordStore rStore;
  private Font sysFont; //保存系统字型
  boolean load;

  //游戏图片变量
  private int  actY=20;

  private int logo_c;

//  private int ey; //屏幕偏移

  private int key_delay = 0; //用来控制按键时的延迟时间
  private boolean key_press = false; //立即按键，快速执行
  private boolean keyRepeat; //控制按键
  private int key; //键值

  //游戏屏幕的宽度和高度
  private final int WIDTH = getWidth();
  private final int HEIGHT = getHeight();
  private final int TIME_PER_FRAME = 80; //游戏速度的控制

  //调试错误的变量，游戏制作完成后要删除的
  int error;
  String errorString;
  final int GAME_ERROR = 999;

  /*  about variable of game state  */
  private int game_state;
  private final int GAME_LOAD = 0; //游戏最先进入的状态
  private final int GAME_INIT = 1; //初始化状态，载入图片，声音等资源，初始化变量等。
  private final int GAME_START = 2; //游戏开始，设置每关的信息
  private final int GAME_RUN = 3; //游戏运行状态
  private final int GAME_OVER = 4; //游戏结束
  private final int GAME_WIN = 5; //游戏胜利
  private final int GAME_MENU = 6; //游戏主菜单
  private final int GAME_PICTURE = 8; //得到拼图
  private final int GAME_TELCALL = 11; //
  private final int GAME_ABOUT = 12; //
  private final int GAME_HELP = 13; //
  private final int GAME_SET = 14; //
  private final int GAME_PAUSE = 15; //游戏暂停
  private final int GAME_CUE = 16; //提示
  private boolean quitGame = false; //游戏结束
  private int MainMenuId = 1; //字菜单
  private int helpY, helpX;
  private int mainX = 55;



  public ModelCanvas(ModelMIDlet game) {
    this.game = game;
    this.setCommandListener(this);
  }

  //游戏初始化
  private final void game_init() {
    sysFont = Font.getFont(Font.FACE_SYSTEM, Font.STYLE_PLAIN, Font.SIZE_LARGE);
    myShip.x = (WIDTH-myShip.getwidth())/2;
    myShip.y = HEIGHT-2*myShip.getheight();
    life = 4 ;
    score = 0;
    for(int i=0;i<myMiss.length;i++){
      myMiss[i].setAlive(false);
    }
    for(int i=0;i<ufos.length;i++){
      ufos[i].setAlive(false);
    }
    ufoCount = 0 ;
    for(int i=0;i<ufoMiss.length;i++){
      ufoMiss[i].setAlive(false);
    }
    ufoMissCount = 0;
    myMissileCount = 0;
    tickCount = 0;
    helpY = sysFont.getHeight();
    helpX = 3;
    Map = null;
    Map = Image.createImage(WIDTH, 2 * HEIGHT);
    ay = 0;
  }

  //开始线程
  public final void game_start() {
    gameThread = new Thread(this);
    gameThread.start();
  }

  public final void game_stop() {
    gameThread = null;
    System.gc();
  }

  protected final void paint(Graphics g) {
    g.setFont(sysFont);
    try {
      switch (game_state) {

        case GAME_LOAD: //最先进入得画面，显示一些loading画面
          g.setColor(0);
          g.fillRect(0, 0, WIDTH, HEIGHT);
          Image  image_point = null;
          image_point = Image.createImage("/point.png");
          g.setClip( (WIDTH - 137) / 2 + 20,
                    (HEIGHT - image_point.getHeight()) / 2 + 10,
                    (logo_c / 3) * 7, 20);
          g.drawImage(image_point, (WIDTH - 137) / 2 + 20,
                      (HEIGHT - image_point.getHeight()) / 2 + 10, 20);
          if (logo_c >= 18) {
            logo_c = 0;
            game_init();
            game_state = GAME_START;
          }
          break;
        case GAME_MENU:
          g.setColor(0);
          g.fillRect(0, 0, WIDTH, HEIGHT);
//          Image menu = null;
//          menu = Image.createImage("/menu.png");
//          g.drawImage(menu, (WIDTH - menu.getWidth()) / 2,
//                      (HEIGHT - menu.getHeight()) / 2, 20);
          Image point = null;
//          point = Image.createImage("/act.png");
//          g.drawImage(point, mainX,
//                      (HEIGHT - menu.getHeight()) / 2 + 4 +
//                      (MainMenuId - 1) * 23, 20);
          break;
        case GAME_START:
          g.setColor(0);
          g.fillRect(0, 0, WIDTH, HEIGHT);
          g.setColor(0xffffFF);
          Image me[] = new Image[1];
          me[0] = Image.createImage("/myshipImg1.png");
//          me[1] = Image.createImage("/myshipImg2.png");
//          me[2] = Image.createImage("/myshipImg3.png");
          point = Image.createImage("/act.png");
          g.drawImage(point, 30, actY, 20);
          g.drawImage(me[0],80,20,20);
//          g.drawImage(me[1],80,60,20);
//          g.drawImage(me[2],80,100,20);
          break;
        case GAME_RUN:

          g.setColor(0x33CCFF);
          g.fillRect(0, 0, WIDTH, HEIGHT);
//          for (int i = 1; i <= 5; i++) {
//            g.drawImage(Map, 0, - (2 * i - 1) * HEIGHT + ay, 20);
//          }
          g.setColor(0);
          g.drawString("S"+score,10,2,20);
          g.drawString("L"+life,60,2,20);
          myShip.doDraw(g);//画自己飞机
          for(int i=0;i<myMiss.length;i++){//画自己飞机子弹
            myMiss[i].doDraw(g);
          }
          //画敌人飞机
          for(int i=0;i<ufos.length;i++){
            ufos[i].doDraw(g);
          }
          //画敌人飞机子弹
          for(int i=0;i<ufoMiss.length;i++){
                 ufoMiss[i].doDraw(g);
               }
          break;
        case GAME_PAUSE:
          break;
        case GAME_CUE:
          break;
        case GAME_WIN:
          break;
        case GAME_OVER:
          g.setColor(0);
          g.fillRect(0, 0, WIDTH, HEIGHT);
          g.setColor(0xffffFF);
          g.drawString("你挂了！！！", 50, 50, 20);


          break;
        case GAME_SET:
          g.setColor(0);
          g.fillRect(0, 0, WIDTH, HEIGHT);
          drawWord(g, "设置"
                   , (WIDTH - sysFont.stringWidth("设置")) / 2
                   , 0
                   , 0x090909, 0xC8FF32);

          break;
        case GAME_ABOUT:
          g.setColor(0);
          g.fillRect(0, 0, WIDTH, HEIGHT);
          drawWord(g, "关于"
                   , (WIDTH - sysFont.stringWidth("关于")) / 2
                   , 0
                   , 0x090909, 0xC8FF32);
          g.setColor(0xffffff);
          g.drawString("游戏名称:风雨者", helpX, 2 * sysFont.getHeight(), 20);
          g.drawString("版本:V1.0.0", helpX, 3 * sysFont.getHeight(), 20);
          g.drawString("电邮:", helpX, 5 * sysFont.getHeight(), 20);
          g.drawString("公司网址:", helpX, 7 * sysFont.getHeight(), 20);
          g.drawString("http://shop33525419.taobao.com/", helpX, 8 * sysFont.getHeight(), 20);
          break;
        case GAME_HELP:
          g.setColor(0);
          g.fillRect(0, 0, WIDTH, HEIGHT);
          drawWord(g, "帮助"
                   , (WIDTH - sysFont.stringWidth("帮助")) / 2
                   , 0
                   , 0x090909, 0xC8FF32);
          g.setColor(0xffffff);
          g.setClip(0, sysFont.getHeight(), WIDTH, HEIGHT);
          g.drawString("方向键上/MUN2： 上", helpX, helpY, 20);
          g.drawString("方向键下/MUN8： 下", helpX, helpY + 1 * sysFont.getHeight(), 20);
          g.drawString("方向键左/MUN4： 左", helpX, helpY + 2 * sysFont.getHeight(), 20);
          g.drawString("方向键右/MUN6： 右", helpX, helpY + 3 * sysFont.getHeight(), 20);
          g.drawString("MUN5： 发射子弹 ", helpX, helpY + 4 * sysFont.getHeight(), 20);
          g.drawString("右软键： 暂停菜单", helpX, helpY + 5 * sysFont.getHeight(), 20);
          g.drawString(" ", helpX, helpY + 6 * sysFont.getHeight(), 20);
          g.drawString(" ", helpX, helpY + 7 * sysFont.getHeight(), 20);
          g.drawString(" ", helpX, helpY + 8 * sysFont.getHeight(), 20);
          g.drawString(" ", helpX, helpY + 9 * sysFont.getHeight(), 20);
          g.drawString(" ", helpX, helpY + 10 * sysFont.getHeight(), 20);
          g.drawString(" ", helpX, helpY + 11 * sysFont.getHeight(),20);

          g.fillRect(WIDTH - 6, sysFont.getHeight(), 6,
                     HEIGHT - sysFont.getHeight());
          g.setColor(0);
          g.fillRect(WIDTH - 5, 2 * sysFont.getHeight() + 1 - helpY, 4,
                     (HEIGHT / sysFont.getHeight() -
                      (11 - HEIGHT / sysFont.getHeight() + 1)) *
                     sysFont.getHeight());
          break;

        case GAME_ERROR: //游戏错误状态
          g.drawString("" + error, 20, 40, 20);
          break;
      }
    }
    catch (Exception e) {
//      //游戏完成后请删除try{} catch{}
      System.out.println("paint: " + e);
      g.setClip(0, 0, WIDTH, HEIGHT);
      g.setColor(0x000000);
//      //将错误信息画在屏幕上
      g.drawString("1. error:" + e.toString(), 0, 0, 20);
      g.drawString("2. error:" + error, 0, 30, 20);
      g.drawString("3. game state:" + game_state, 60, 0, 20);
      long timenow = System.currentTimeMillis();
      while (System.currentTimeMillis() - timenow < 10000) { //10秒后退出

      }
      quitGame = true;
    }
  }

  public final void run() {
    error = 1;
    long starttime = 0;
    long timetaken = 0;
    try {
      while (!quitGame) {
        starttime = System.currentTimeMillis();
        switch (game_state) {
          case GAME_RUN:
            if (ay >= 1250) {
                       ay = 1250;
                     }
                     else {
                       ay = ay + 1;
                     }

            myShip.doMove();
            doFire();
              doEnemy();
//              System.out.println("ufoCount"+ufoCount);
//
            for(int i=0;i<ufos.length;i++){//敌人处理
              if (ufos[i].isAlive()){
                ufos[i].doMove();
                if (!ufos[i].isAlive() ||
                    ufos[i].getX() + ufos[i].getwidth() < 0 ||
                    ufos[i].getX() > WIDTH) {
                  ufos[i].setAlive(false);
                  ufoCount--;
                  if (ufos[i].isHit()) score = score + 100;
                }else if (ufoMissCount < ufoMiss.length &&
                         ufos[i].isDropBome()) {
                  for(int j=0;j<ufoMiss.length;j++){
                    if(!ufoMiss[j].isAlive()){
                      ufoMiss[j].setX((ufos[i].getwidth()-ufoMiss[j].getwidth())/2
                                      +ufos[i].getX());
                      ufoMiss[j].setY(ufos[i].getY()+ufos[i].getheight());
                      ufoMiss[j].setAlive(true);
                      ufoMissCount++;
                    }
                  }
                }
              }
            }
            //敌人子弹处理
            for(int i=0;i<ufoMiss.length;i++){
              if (ufoMiss[i].isAlive()){//处理活的敌人
                ufoMiss[i].doMove();
                if (myShip.isOverlaps(ufoMiss[i])) {//命中判断
                  life--;
                  myShip.setHit(true);
                  ufoMiss[i].setAlive(false);//命中后子弹消失
                  ufoMissCount--;

                  if (life < 1) {
                    isGameover = true;
//                    break;
                  }
                }
                else if (ufoMiss[i].getY() > HEIGHT) {
                  ufoMiss[i].setAlive(false);
                  ufoMissCount--;
                }
              }
            }
            //自己飞机子弹处理
            for(int i=0;i<myMiss.length;i++){
              if (myMiss[i].isAlive()) {
                myMiss[i].doMove();
                for(int j=0;j<myMiss.length;j++){
                  if(ufos[j].isAlive()&&!ufos[j].isHit()){
                    if(ufos[j].isOverlaps(myMiss[i])){
                      ufos[j].setHit(true);
                      myMiss[i].setAlive(false);
                      myMissileCount--;
                      break;
                    }
                  }
                }
              }
              if (myMiss[i].isAlive()&&
                  myMiss[i].getY()+myMiss[i].getheight()<10){
                myMiss[i].setAlive(false);
                myMissileCount--;
              }
            }
            break;
          case GAME_SET:
            break;
          case GAME_PICTURE:
            logo_c++;
            break;
          case GAME_START:
            createImageMap();
            break;
          case GAME_PAUSE:
            break;
          case GAME_OVER:
            break;
          case GAME_LOAD:
            logo_c++;
            break;
          case GAME_INIT: //游戏数据初始化
            logo_c++;