_.md

Java Space Invaders

• Not yet done
• Buggy and ugly (but hey its JavaME anyway)
• UGLY!

ActionCanvas.java

package ch.seta.awsomepixelship;

import java.io.IOException;
import java.util.Random;

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

public class ActionCanvas extends Canvas implements Runnable{

	Image player;
	int p_x = getWidth()/2-15;
	int p_y = getHeight();
	int speed = 1;
	private String keyValue = "";
	private String movement = "";
	private Random rand;
	private Bullet bullet;
	static final int MAX_GAME_SPEED = 33;
	static int fps;
	
	ActionCanvas(){
		rand = new Random();
		setFullScreenMode(true);
		try {
			player = Image.createImage("/ship.gif");
		} catch (IOException e) {
			e.printStackTrace();
		}
		bullet = new Bullet();
		
		new Thread(this).start();
	}
	
	public void run(){
		try {
			while(true){
				long starttime = System.currentTimeMillis();
				repaint();

				serviceRepaints();
				Thread.yield();
				
				long exectime = System.currentTimeMillis()-starttime;

				//if(exectime > MAX_GAME_SPEED){
				//	Thread.sleep(MAX_GAME_SPEED-(int)exectime);
				//	fps = 1000/MAX_GAME_SPEED;
				//} else {
				//	fps = (int) (1000/exectime);
				//}
			}
		} catch (Exception e){
			System.out.println("ERROR:FUUU "+e);
		}
	}
	
    public void paint(Graphics g){
    	if((System.currentTimeMillis()+"").endsWith("1")){
    		g.setColor(0, 144, 0);
    	} else {
    		g.setColor(0, 0, 0);
    	}
    	g.fillRect(0, 0, getWidth(), getHeight());
    	g.drawImage(player, p_x, p_y, Graphics.TOP | Graphics.LEFT);
    	g.setColor(255,0,0);
    	g.drawString(fps+""+p_x, 10, 10, Graphics.TOP | Graphics.LEFT);
    	g.drawString(bullet.count()+"", 20, 20, Graphics.TOP|Graphics.LEFT);
    	this.move();
    }
    
    public void move(){
	   	if(movement.equals("LEFT")){
	   		p_x -= speed;
	   		if(p_x < 0){ p_x = 0; }
		} else if(movement.equals("RIGHT")){
			p_x += speed;
			if(p_x > (getWidth()-30)){ p_x = (getWidth()-30); }
		}
	   	if(movement.equals("UP")){
			bullet.newone(p_x,p_y);
		}
    }
    
    protected void keyPressed(int keyCode){
    	 keyValue = getKeyName(keyCode);
    	 movement = keyValue;
    }
    
    protected void keyReleased(int keyCode){
    	movement = "";
    }

}

Bullet.java

package ch.seta.awsomepixelship;

import java.io.IOException;
import java.util.Hashtable;

import javax.microedition.lcdui.Image;

public class Bullet {

	static int MAX_BULLET = 4;
	private Image[] bullet = new Image[5];
	Hashtable bullets = new Hashtable();
	
	Bullet(){
		try {
			bullet[0] = Image.createImage("/bullet/bullet1.gif");
			bullet[1] = Image.createImage("/bullet/bullet2.gif");
			bullet[2] = Image.createImage("/bullet/bullet3.gif");
			bullet[3] = Image.createImage("/bullet/bullet4.gif");
			bullet[4] = Image.createImage("/bullet/bullet5.gif");
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

	public void newone(int p_x, int p_y) {
		int[] arr = new int[2];
		arr[0] = p_x;
		arr[1] = p_y;
		bullets.put(bullets.size()+"", arr);
	}
	
	public int count(){
		return bullets.size(); 
	}
	
}

Main.java

package ch.seta.awsomepixelship;

import javax.microedition.midlet.MIDlet;
import javax.microedition.lcdui.Display;

public class Main extends MIDlet{

   public void startApp(){
             Display display = Display.getDisplay(this);
             ActionCanvas ac = new ActionCanvas();
             display.setCurrent(ac);
   }
   public void pauseApp(){}
   public void destroyApp(boolean unconditional){}
 }