bravecanvas.java

边学边做 原码 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 没有解压密码

import javax.microedition.lcdui.game.GameCanvas;
import javax.microedition.lcdui.Graphics;
import java.io.IOException;
import javax.microedition.lcdui.Image;
import javax.microedition.lcdui.game.TiledLayer;


public class BraveCanvas extends GameCanvas implements Runnable
{
 private boolean sign;
 private Graphics g;
 private Hero hero;
 private Image upimage;
 private Image downimage;
 private Image leftimage;
 private Image rightimage;
 private Image talkImage;
 private TiledLayer backgroundMap;
 private TiledLayer foregroundMap;
 private BraveManager braveManager;
 //该标志位判断对话是否开始
 public static boolean isTalk;
 //该标志为判断对话是否可以重新开始，默认可以重新开始
 public static boolean isTalkSign = true;
 //当前的人物方向（碰撞检测用）
 public static int way = 0;

 public BraveCanvas()
 {
  super(true);
  try
  {
   backgroundMap = Scene.createTiledLayerByBackground(
    Image.createImage("/background.png"));
   foregroundMap = Scene.createTiledLayerByForeground(
    Image.createImage("/foreground.png"));
   upimage = Image.createImage("/hero_up.png");
   downimage = Image.createImage("/hero_down.png");
   leftimage = Image.createImage("/hero_left.png");
   rightimage = Image.createImage("/hero_right.png");
   talkImage = Image.createImage("/talk.png");
   braveManager = new BraveManager();
   braveManager.setBraveCanvas(this);
   hero = new Hero(upimage, 17, 26);
   //hero.setFrameSequence(new int[]{1, 1, 0, 0, 1, 1, 2, 2});
   hero.setBraveCanvas(this);
   hero.setBraveManager(braveManager);
   hero.init(120, 120);
  }
  catch(Exception e)
  {
   e.printStackTrace();
  }
 }

 public void startup()
 {
  this.sign = true;
  Thread thread = new Thread(this);
  thread.start();
 }

 public void run()
 {
  g = getGraphics();
  braveManager.insert(hero, 0);
  braveManager.insert(foregroundMap, 1);
  braveManager.insert(backgroundMap, 2);
  while(sign)
  {
   try
   {
    input(g);
    BraveCanvas.isTalkSign = true;
    paint(g);
    Thread.sleep(15);
   }
   catch(Exception e)
   {
    e.printStackTrace();
   }
  }
 }

 public void input(Graphics g) throws IOException
 {
  int keystates = getKeyStates();
  switch(keystates)
  {
   case UP_PRESSED:
    BraveCanvas.way = UP_PRESSED;
    hero.moveUp(upimage);
    break;
   case DOWN_PRESSED:
    BraveCanvas.way = DOWN_PRESSED;
    hero.moveDown(downimage);
    break;
   case LEFT_PRESSED:
    BraveCanvas.way = LEFT_PRESSED;
    hero.moveLeft(leftimage);
    break;
   case RIGHT_PRESSED:
    BraveCanvas.way = RIGHT_PRESSED;
    hero.moveRight(rightimage);
    break;
   case FIRE_PRESSED:
    //当用户按下对话键时候，首先判断对话是否可以重新开始
    //只有对话可以重新开始后才能再次开始对话
    if(hero.eventActionExist(98))
    {
     if(BraveCanvas.isTalkSign)
     {
      BraveCanvas.isTalk = true;
     }
    }
    break;
  }
  hero.afresh();
  braveManager.afresh();
 }

 public void paint(Graphics g)
 {
  g.setColor(0x000000);
  g.fillRect(0, 0, getWidth(), getHeight());
  g.setColor(0x000000);
  braveManager.paint(g, 0, 0);
  if(BraveCanvas.isTalk)
  {
   //加入对话，这里只是简单做个例子。应该给对话规定编号，然后从文件中相应的编号中读取
   hero.talk("英雄", talkImage, "这是一个小镇", g);
  }
  else
  {
   flushGraphics();
  }
 }

}