stage.java

一款运行于手机的Java游戏神灯传奇源代码

package com.thinkenjoy.feitian;

import java.io.InputStream;

import javax.microedition.lcdui.Graphics;
import javax.microedition.lcdui.Image;

import com.thinkenjoy.control.Control;
import com.thinkenjoy.control.ThreadCanvas;
import com.thinkenjoy.tools.ImageSet;
import com.thinkenjoy.tools.Tools;
import com.thinkenjoy.feitian.screen.PlayScreen;

/**
 * 关于地图数据以及背景地图的处理
 * @author Administrator
 *
 */
public class Stage {

  private static final byte LEVEL_SCALE = 10;

  public static final int MAX_STAGE = 4;

  int tilesWide;

  int tilesHigh;

  int highSeperate;

  byte[][] tileMap;

  int scale;

  static Image stageBackImg = null;

  private int curStage;

  private int timeCounter;

  /**
   * 背景星空的横纵坐标
   */
  private int starLocX[] = { 5, 59, 32, 155, 80, 169, 54, 37, 83, 100, 131, 9 };

  private int starLocY[] = { 106, 120, 40, 19, 22, 125, 155, 66, 82, 164, 23,
      94 };

  /**
   * 敌人对应的初试位置种类
   */
  private int[] starEnemy_type = {0, 1, 1, 2, 3, 1, 2, 1, 1, 1, 1,
                     2, 3, 3, 1, 1, 1, 1, 1, 1, 1,
                     1, 1, 1, 1, 1, 1,    1, 1, 1, 1 };

  /**
   * 背景移动速度,图片类型
   */
  private int backSpeed, backLeyerOffset;

  /**
   * 当打死BOSS后，将不会有新的敌人产生
   */
  private boolean initialNewEnemy;

  /**
   * 是否能切换关卡
   */
  private boolean changeStage;

  protected int drawOffsetX;

  protected int drawOffsetY;

  public Enemy boss;

  public MovingObjectPool treasurePool;

  private PlayScreen playScreen;

  private MovingObjectPool enemyPool;

  public Stage(int curStage, String url, MovingObjectPool enemyPool,
               Enemy boss, MovingObjectPool treasurePool) {
    timeCounter = 0;
    initialNewEnemy = true;
    changeStage = false;
    drawOffsetX = 0;
    drawOffsetY = 0;
    this.curStage = curStage;
    this.enemyPool = enemyPool;
    this.boss = boss;
    this.treasurePool = treasurePool;
  }

  public void initial(int stageNum) {
    // Image tempBossImage;
    curStage = stageNum;
    timeCounter = 0;
    initialNewEnemy = true;
    changeStage = false;
    scale = 0;//200
    backLeyerOffset = 0;
    switch (stageNum) {
    // TODO:载入关卡资源
    case 1: // '\001'
    default:
      // backLeyerOffset = 0;
      backSpeed = 1;
      loadLevel("1");
      // scale = 0;
      stageBackImg = Tools.getImage("images/stage/stageBack1");
      // Enemy.bossImageSet = null;
      // Enemy.bossImageSet = new ImageSet(1);
      // tempBossImage = Tools.getImage("images/stage/boss1");
      // Enemy.bossImageSet.addState(ImageSet.extractFrames(tempBossImage,
      // 0, 0, 2, 1, 84, 75), 5000);
      break;
    case 2:
      // backLeyerOffset = 0;
      backSpeed = 1;
      loadLevel("2");
      // scale = 0;
      stageBackImg = Tools.getImage("images/stage/stageBack2");
      break;
    case 3:
      // backLeyerOffset = 0;
      backSpeed = 1;
      loadLevel("3");
      // scale = 0;
      stageBackImg = Tools.getImage("images/stage/stageBack3");
      break;
    case 4:
      // backLeyerOffset = 0;
      backSpeed = 1;
      loadLevel("4");
      // scale = 0;
      stageBackImg = Tools.getImage("images/stage/stageBack4");
      break;
    }
  }

  public boolean initialEnemy(int type, int locX, int locY) {
    if (!initialNewEnemy)
      return false;
    Enemy enemy = (Enemy) enemyPool.getNextFree();
    enemy.initial(type-1, locX, locY);
    enemy.cycle(locX, locY);
    return true;
  }

  public boolean initialBoss(int type, int locX, int locY) {
    if (!initialNewEnemy)
      return false;
    boss.initial(type, locX, locY);
    return true;
  }

  public void reset() {
    Control.setStage(curStage);
    timeCounter = 0;
    initialNewEnemy = true;
    changeStage = false;
  }

  public boolean canChangeStage() {
    return changeStage;
  }

  public void cycle() {
    //#if NOK_7210 || NOK_7260 || NOK_6101
    //# if (--backSpeed <= -128) {
    //#else
      //#if NOK_7370 || MOT_E2
      //# if (--backSpeed <= -240) {
      //#else
        //#if NOK_6230i
        //# if (--backSpeed <= -208) {
        //#else
        if (--backSpeed <= -176) {
        //#endif
      //#endif
    //#endif
      backSpeed = 0;
    }
    if (playScreen == null) {
      playScreen = PlayScreen.getInstance();
    }
    if (!initialNewEnemy && changeStage)
      return;
    timeCounter++;
    switch (curStage) {
    default:
      if (timeCounter >= LEVEL_SCALE && timeCounter % LEVEL_SCALE == 0) {
        if (scale >= tilesWide) {
          // #ifdef debug
          // #System.out.println("关卡数据越界");
          // #endif
        } else {
          for (int i = 0; i < tilesHigh; i++) {
            if (getTileIndex(i, scale) != 0) {
              // TODO:根据关卡数据进行处理(根据敌人ID确定敌人的产生位置)
              switch (starEnemy_type[getTileIndex(i, scale)]) {
              case 1: // 从右边飞出
                if (getTileIndex(i, scale) <= 30) {
                  if(i!=0)
                  {
                    //#if NOK_7260 || NOK_7210
                    //# initialEnemy(getTileIndex(i, scale), 130,12 * i);
                    //#else
                      //#if NOK_7370 || MOT_E2
                      //# initialEnemy(getTileIndex(i, scale), 240,40 * i);
                      //#else
                        //#if NOK_6230i
                        //# initialEnemy(getTileIndex(i, scale), 210,26 * i);
                        //#else
                          //#if NOK_6101
                          //# initialEnemy(getTileIndex(i, scale), 130,20 * i);
                          //#else
                          initialEnemy(getTileIndex(i, scale), 180,26 * i);
                          //#endif
                        //#endif
                      //#endif
                    //#endif
                  }else
                  {
                    initialEnemy(getTileIndex(i, scale), 180,50);
                  }
                }
                break;
              case 2: // 从上方随机位置飞出
                //#if NOK_7260 || NOK_7210 || NOK_6101
                //# initialEnemy(getTileIndex(i, scale), Tools.getRand(50, 115), -10);
                //#else
                  //#if NOK_7370 || MOT_E2
                  //# initialEnemy(getTileIndex(i, scale), Tools.getRand(50, 300), -10);
                  //#else
                    //#if NOK_6230i
                    //# initialEnemy(getTileIndex(i, scale), Tools.getRand(50, 200), -10);
                    //#else
                    initialEnemy(getTileIndex(i, scale), Tools.getRand(50, 150), -10);
                    //#endif
                  //#endif
                //#endif
                break;
              case 3: // 从下方随机位置飞出
                //#if NOK_7260 || NOK_7210
                //# initialEnemy(getTileIndex(i, scale), Tools.getRand(50, 115), 128);
                //#else
                  //#if NOK_7370 || MOT_E2
                  //# initialEnemy(getTileIndex(i, scale), Tools.getRand(50, 300), 320);
                  //#else
                    //#if NOK_6230i
                    //# initialEnemy(getTileIndex(i, scale), Tools.getRand(50, 200), 208);
                    //#else
                      //#if NOK_6101
                      //# initialEnemy(getTileIndex(i, scale), Tools.getRand(50, 115), 160);
                      //#else
                      initialEnemy(getTileIndex(i, scale), Tools.getRand(50, 150), 208);
                      //#endif
                    //#endif
                  //#endif
                //#endif
                break;
              }
            }
          }
        }
        scale++;
      }
      break;
    }
  }

  public void render(Graphics g) {
    // TODO：绘制关卡背景
    //#if NOK_7370 || MOT_E2
    //# g.setClip(0, 0, 240, 320);
    //# g.drawImage(stageBackImg, backSpeed, 0, 0);
    //# g.setClip(0, 0, 240, 320);
    //#else
      //#if NOK_6230i
      //# g.setClip(0, 0, 208, 208);
      //# g.drawImage(stageBackImg, backSpeed, 0, 0);
      //# g.setClip(0, 0, 208, 208);
      //#else
      g.setClip(0, 0, 176, 208);
      g.drawImage(stageBackImg, backSpeed, 0, 0);
      g.setClip(0, 0, 176, 208);
      //#endif
    //#endif

    //#if NOK_7260 || NOK_7210 || NOK_6101
    //# g.drawImage(stageBackImg, backSpeed + 129, 0, 0);
    //#else
      //#if NOK_7370 || MOT_E2
      //# g.drawImage(stageBackImg, backSpeed + 241, 0, 0);
      //#else
        //#if NOK_6230i
        //# g.drawImage(stageBackImg, backSpeed + 209, 0, 0);
        //#else
        g.drawImage(stageBackImg, backSpeed + 177, 0, 0);
        //#endif
      //#endif
    //#endif
    drawStar(g);

    //#if MOT_E2 || NOK_7370
    //# g.setClip(0, 0, 240, 320);
    //#else
      //#if NOK_6230i
      //# g.setClip(0, 0, 208, 208);
      //#else
      g.setClip(0, 0, 176, 208);
      //#endif
    //#endif
  }

  /**
   * 绘制背景上不断飞过的星星
   *
   * @param g
   */
  public void drawStar(Graphics g) {
    g.setColor(0xffffff);
    for (int i = 0; i < starLocX.length; i++) {
      g.drawLine(starLocX[i], starLocY[i], starLocX[i] + 1, starLocY[i]);
      if (i < 4)
        starLocX[i]--;
      else if (i < 8)
        starLocX[i] -= 3;
      else
        starLocX[i] -= 5;
      if (starLocX[i] < 0)
        starLocX[i] = ThreadCanvas.SCREEN_WIDTH;
    }
  }

  /**
   * 载入关卡数据
   *
   * @param 关卡等级
   */
  public void loadLevel(String levelName) {
    try {
      InputStream is = null;
      is = this.getClass().getResourceAsStream("/stage" + levelName + ".dat");

      // 先载入关卡的长宽
      tilesWide = is.read() & 0xff;
      tilesHigh = is.read() & 0xff;
      highSeperate = ThreadCanvas.SCREEN_HEIGHT / tilesHigh;
      tileMap = new byte[tilesHigh][tilesWide];

      // 载入关卡数据，范围为0-255
      for (int ty = 0; ty < tilesHigh; ty++) {
        for (int tx = 0; tx < tilesWide; tx++) {
          tileMap[ty][tx] = (byte) is.read();
        }
      }
    } catch (Exception e) {
      System.out.println("载入关卡数据时出错 : " + e);
      e.printStackTrace();
    }
  }

  /**
   * 得到地图格子的索引值，0-255
   *
   * @param tileX
   * @param tileY
   * @return
   */
  private int getTileIndex(int tileX, int tileY) {
    int tileIndex = tileMap[tileX][tileY];
    // if (tileIndex < 0) {
    // tileIndex &= 0xff;
    //		}
    return tileIndex;
  }

  public void reCycle() {
    stageBackImg = null;
  }

}