gamescreen.java~6~

基于数字机顶盒J2me平台开发的互动游戏《金鼠财神》游戏

package WealthGod;

import javax.microedition.lcdui.*;
import javax.microedition.lcdui.game.*;
import java.io.*;
import javax.microedition.media.*;


public class GameScreen extends GameCanvas  implements Runnable {

  public GameScreen() throws IOException{
   super(true);
   this.start();
  }

  public void start()
  {
     Thread t=new Thread(this);
     t.setPriority(Thread.MAX_PRIORITY);//设置优先级
     t.start();
  }

  public void run() {
    Graphics g=getGraphics();
    while(true){
       input();
       render(g);
       System.gc();
       try {
         Thread.sleep(20);
       }
       catch (InterruptedException ex4) {
       }
    }
  }

  void input()
  {
    int keyStates = getKeyStates();
//    if ((keyStates & UP_PRESSED) != 0)
//    else if ( (keyStates & RIGHT_PRESSED) != 0)
//    else if ( (keyStates & LEFT_PRESSED) != 0)
//    else if ( (keyStates & DOWN_PRESSED) != 0)
//    if ( (keyStates & FIRE_PRESSED) != 0)
  }

  void render(Graphics g)
  {
      int w = getWidth();
      int h = getHeight();
      g.setColor(0x000000);
      g.fillRect(0, 0, w, h);
      Font indicator = Font.getFont(Font.FACE_SYSTEM, Font.STYLE_BOLD,
                                    Font.SIZE_LARGE);
      try {
        Image bk = Image.createImage("/res/bk.png");
        g.drawImage(bk, 0, 0, Graphics.TOP | Graphics.LEFT);
        Image word1 = Image.createImage("/res/word1.png");
        g.drawImage(word1, 0, 409, Graphics.TOP | Graphics.LEFT);
        Image word2 = Image.createImage("/res/word2.png");
        g.drawImage(word2, 561, 0, Graphics.TOP | Graphics.LEFT);
      }
      catch (IOException ex) {}
      g.setFont(indicator);
      flushGraphics();
    }
}