Sweep Game : Game « J2ME « Java





Sweep Game

Sweep Game
/*
Wireless Java 2nd edition 
Jonathan Knudsen
Publisher: Apress
ISBN: 1590590775 
*/

import javax.microedition.lcdui.*;
import javax.microedition.lcdui.game.*;
import javax.microedition.midlet.*;

public class SweepGame extends MIDlet {
  public void startApp() {
    final SweepGameCanvas sweeper = new SweepGameCanvas();
    sweeper.start();
    
    sweeper.addCommand(new Command("Exit", Command.EXIT, 0));
    sweeper.setCommandListener(new CommandListener() {
      public void commandAction(Command c, Displayable s) {
        sweeper.stop();
        notifyDestroyed();
      }
    });
    
    Display.getDisplay(this).setCurrent(sweeper);
  }
  
  public void pauseApp() {}

  public void destroyApp(boolean unconditional) {}
}

class SweepGameCanvas extends GameCanvas implements Runnable {
  private boolean mTrucking;
  private int mTheta;
  private int mBorder;
  private int mDelay;
  
  public SweepGameCanvas() {
    super(true);
    mTheta = 0;
    mBorder = 10;
    mDelay = 50;
  }
  
  public void start() {
    mTrucking = true;
    Thread t = new Thread(this);
    t.start();
  }
  
  public void stop() {
    mTrucking = false;
  }
    
  public void render(Graphics g) {
    int width = getWidth();
    int height = getHeight();
    
    // Clear the Canvas.
    g.setGrayScale(255);
    g.fillRect(0, 0, width - 1, height - 1);
    
    int x = mBorder;
    int y = mBorder;
    int w = width - mBorder * 2;
    int h = height - mBorder * 2;
    for (int i = 0; i < 8; i++) {
      g.setGrayScale((8 - i) * 32 - 16);
      g.fillArc(x, y, w, h, mTheta + i * 10, 10);
      g.fillArc(x, y, w, h, (mTheta + 180) % 360 + i * 10, 10);
    }
  }
  
  public void run() {
    Graphics g = getGraphics();
    while (mTrucking) {
      mTheta = (mTheta + 1) % 360;
      render(g);
      flushGraphics();
      try { Thread.sleep(mDelay); }
      catch (InterruptedException ie) {}
    }
  }
}


           
       










Related examples in the same category

1.Maze gameMaze game
2.Checkers gameCheckers game
3.Game Action ExampleGame Action Example
4.Game Key EventGame Key Event
5.SweepSweep
6.Dungeon game
7.Tumbleweed game
8.Canvas for processing game actionsCanvas for processing game actions