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Mjordan2nd · Oct 29th, 2004, 6:24 PM

There are still a few things I'd like to do before I say I'm finished with this. First of all, I get exceptions at times which I'd like to get rid of. If anyone can help me out with fixing those I'd really appreciate it. Secondly, I'd like to get new images so that the aliens don't all look alike on each level (by the way, in case you don't know, I bummed those images off of starcraft). Another thing I was wondering about was why it runs so slowly on some computers, even the faster ones. My laptop is 2.4 ghz, 512 ram, and 64 mb video card yet it takes nearly 30 seconds just to load my background image. Now, at school this game works perfectly, but those are 3.2 ghz, 1 gb ram machines. Anyway, enough talk. Here it is.

http://jupiter.walagata.com/w/mjorda...ceinvaders.zip

Ammo:

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package IAmmo;
import ICraft.Craft;
import java.awt.*;


public class Ammo implements Craft
{
	private int myX;
	private int myY;
	private int mySpeed;
	private int damage;
	private boolean shot;
  private Image myImage;
  private int impact=0;
  private int xInc;
  private int yInc;
  
  
  public Ammo()
	{
 myX = 0;
 myY = 0;
 mySpeed = 7;
 myImage = Toolkit.getDefaultToolkit().getImage("ammo.jpg");
 shot = false;
 damage = 5;
 
	}
	
	

  public Ammo(int initX, int initY) 
  {
   myX = initX;
   myY = initY;
   mySpeed = 7;
   myImage = Toolkit.getDefaultToolkit().getImage("ammo.jpg");
   shot = false;
   damage = 5;
  }

  public Ammo(int initX, int initY, String imageName)
  {
    myX = initX;
   myY = initY;
   myImage = Toolkit.getDefaultToolkit().getImage(imageName);
   shot = true;
   damage = 5;
   mySpeed = 7;
   
  }
 
  
	public void setLoc( int X, int Y)
	{
 myX = X;
 myY = Y;
	} 
  public void setX( int X )
  {
  	myX = X;
  }
  
  public void setY( int Y )
  {
  	myY = Y;
  }
  public void setSpeed( int S )
  {
  	mySpeed = S;
  }

  public void moveUp()
  {
  	myY -= mySpeed;
  }
  public void moveDown()
  {
  	myY += mySpeed;
  }
  public void moveLeft()
  {
  	myX -= mySpeed;
  }
  public void moveRight()
  {
  	myX += mySpeed;
  }
  
  public int getX()
  {
  	return myX;
  }
  public int getY()
  {
  	return myY;
  }
  public int getSpeed()
  {
  	return mySpeed;
  }
  public Image getImage()
  {
  	return myImage;
  }	
  
  public void setImage(String alienImage)
  {
  	myImage = Toolkit.getDefaultToolkit().getImage(alienImage);
  }
  
  public int getDamage()
  {
  	return damage;
  }
  
  public void setDamage(int newDamage)
  {
  	damage = newDamage;
  }
  
  public void setShot(boolean newShot)
  {
  	shot = newShot;
  }
  
  public boolean isActive()
  {
  	return shot;
  }

	
  
  public void act()
  {
  	if(myY>=0)
  	{
   moveUp();
  	}
  	else
  	{
   setShot(false);
  	}
	}
	
	public void setActive(boolean x)
	{
 shot = x;	
	}
	
	public void actAlien()
  {
  	if(myY<=480)
  	{
   moveDown();
  	}
  
  	else
  	{
   setShot(false);
  	}
	}
	
	public void smartShot(int x, int y)
	{
 if(myY<=480)
 {
 	int shipX = x;
 	int shipY = y;
 	myY+=10;
 	int xDist = Math.abs(myX - x);
 	int xMove = xDist/10;
 	if(myX>x)
 	{
  myX-=xMove;
 	}
 	if(myX<x)
 	{
  myX+=xMove;
 	}
 }
 else
 {
 	setShot(false);
 }
	}

}

package IAmmo;
import ICraft.Craft;
import java.awt.*;


public class Ammo implements Craft
{
	private int myX;
	private int myY;
	private int mySpeed;
	private int damage;
	private boolean shot;
  private Image myImage;
  private int impact=0;
  private int xInc;
  private int yInc;
  
  
  public Ammo()
	{
 myX = 0;
 myY = 0;
 mySpeed = 7;
 myImage = Toolkit.getDefaultToolkit().getImage("ammo.jpg");
 shot = false;
 damage = 5;
 
	}
	
	

  public Ammo(int initX, int initY) 
  {
   myX = initX;
   myY = initY;
   mySpeed = 7;
   myImage = Toolkit.getDefaultToolkit().getImage("ammo.jpg");
   shot = false;
   damage = 5;
  }

  public Ammo(int initX, int initY, String imageName)
  {
    myX = initX;
   myY = initY;
   myImage = Toolkit.getDefaultToolkit().getImage(imageName);
   shot = true;
   damage = 5;
   mySpeed = 7;
   
  }
 
  
	public void setLoc( int X, int Y)
	{
 myX = X;
 myY = Y;
	} 
  public void setX( int X )
  {
  	myX = X;
  }
  
  public void setY( int Y )
  {
  	myY = Y;
  }
  public void setSpeed( int S )
  {
  	mySpeed = S;
  }

  public void moveUp()
  {
  	myY -= mySpeed;
  }
  public void moveDown()
  {
  	myY += mySpeed;
  }
  public void moveLeft()
  {
  	myX -= mySpeed;
  }
  public void moveRight()
  {
  	myX += mySpeed;
  }
  
  public int getX()
  {
  	return myX;
  }
  public int getY()
  {
  	return myY;
  }
  public int getSpeed()
  {
  	return mySpeed;
  }
  public Image getImage()
  {
  	return myImage;
  }	
  
  public void setImage(String alienImage)
  {
  	myImage = Toolkit.getDefaultToolkit().getImage(alienImage);
  }
  
  public int getDamage()
  {
  	return damage;
  }
  
  public void setDamage(int newDamage)
  {
  	damage = newDamage;
  }
  
  public void setShot(boolean newShot)
  {
  	shot = newShot;
  }
  
  public boolean isActive()
  {
  	return shot;
  }

	
  
  public void act()
  {
  	if(myY>=0)
  	{
   moveUp();
  	}
  	else
  	{
   setShot(false);
  	}
	}
	
	public void setActive(boolean x)
	{
 shot = x;	
	}
	
	public void actAlien()
  {
  	if(myY<=480)
  	{
   moveDown();
  	}
  
  	else
  	{
   setShot(false);
  	}
	}
	
	public void smartShot(int x, int y)
	{
 if(myY<=480)
 {
 	int shipX = x;
 	int shipY = y;
 	myY+=10;
 	int xDist = Math.abs(myX - x);
 	int xMove = xDist/10;
 	if(myX>x)
 	{
  myX-=xMove;
 	}
 	if(myX<x)
 	{
  myX+=xMove;
 	}
 }
 else
 {
 	setShot(false);
 }
	}

}

Craft.java:

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package ICraft;

import java.awt.*;



public interface Craft 
{
  public void setLoc( int X, int Y); 
  public void setX( int X );
  public void setY( int Y );
  public void setSpeed( int S );

  public void moveUp();
  public void moveDown();
  public void moveLeft();
  public void moveRight();
  
  public int getX();
  public int getY();
  public int getSpeed();

	public Image getImage(); 
	public void act();
	public boolean isActive(); 
	public void setActive(boolean x);
}

Game.java

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import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

public class Game {
    
  private SpaceCanvas canvas;

  public Game() 
  {
    canvas = new SpaceCanvas(); 

  }


  public static void main(String[] args) {
    Game TheGame = new Game();
  }


}

Ship.java

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package SIShip;
import java.awt.*;
import IAmmo.Ammo;
import ICraft.Craft;

public class Ship implements Craft
{
  private int myX;
  private int myY;
  private int mySpeed;
  private int health;
  private Image myImage;
  public Ammo [] myAmmo = new Ammo[5];
  private boolean active;
  
 
	public Ship()
	{
 myX = 0;
 myY = 0;
 mySpeed = 10;
 myImage = Toolkit.getDefaultToolkit().getImage("ship.jpg");
 initializeAmmo();
 health = 50;
 active = true;
	}

  public Ship(int initX, int initY) 
  {
   myX = initX;
   myY = initY;
   mySpeed = 10;
   myImage = Toolkit.getDefaultToolkit().getImage("ship.jpg");
  	initializeAmmo();
  	health = 50;
  	active = true;
  }

  public Ship(int initX, int initY, int iSpeed)
  {
    myX = initX;
   myY = initY;
   iSpeed = mySpeed;
   myImage = Toolkit.getDefaultToolkit().getImage("ship.jpg");
  	initializeAmmo();
  	health = 50;
  	active = true;
  }
 
  public void setLoc( int X, int Y) 
  {
 myX = X;
 myY = Y;
  }


  public void setX( int X ) 
  {
  	myX = X;  
  }

	public void initializeAmmo()
	{
 for(int i = 0; i<myAmmo.length; i++)
 {
 	myAmmo[i] = new Ammo();
 }
	}

  public void setY( int Y ) 
  {
  	myY = Y;  
  }
  
  public void setSpeed( int S ) 
  {
  	mySpeed = S;  
  }  
  
  public void moveUp()
  {
  	if(myY>240)
   myY-=10;
  }
  
  public void moveDown()
  {
  	if(myY<420)
   myY+=10;
  }
  
  public void moveLeft()
  {
  	myX-=10;
  	if(myX<20)
  	{
   myX=580;
  	}
  }
  
  public void moveRight()
  {
  	myX+=10;
  	if(myX>600)
  	{
   myX = 20;
  	}
  }
  
  
  public int getX() 
  {
    return myX;
  }


  public int getY() 
  {
    return myY;
  }
  
  public int getSpeed()
  {
    return mySpeed;
  }
  
  public String toString()
  {
  	return getX() + " " + getY();	
	}
	
	public Image getImage()
	{
 return myImage;
	}
	
	public Ammo shoot()
	{
 System.out.println("h");
 for(int j = 0; j<myAmmo.length; j++)
 {
 	if(!myAmmo[j].isActive())
 	{
  myAmmo[j].setLoc(this.getX(), this.getY());
  myAmmo[j].setShot(true);
  return myAmmo[j];  
 	}
 	
 }
 return null;
	}
	
	public void act(){}
	
	public boolean isActive()
	{
 return active;
	}
	
	public void setActive(boolean x)
	{
 active = false;
	}
	public int getHealth()
	{
 return health;
	}
	
	public void isHit()
	{
 health -= 5;
	}
}

package SIShip;
import java.awt.*;
import IAmmo.Ammo;
import ICraft.Craft;

public class Ship implements Craft
{
  private int myX;
  private int myY;
  private int mySpeed;
  private int health;
  private Image myImage;
  public Ammo [] myAmmo = new Ammo[5];
  private boolean active;
  
 
	public Ship()
	{
 myX = 0;
 myY = 0;
 mySpeed = 10;
 myImage = Toolkit.getDefaultToolkit().getImage("ship.jpg");
 initializeAmmo();
 health = 50;
 active = true;
	}

  public Ship(int initX, int initY) 
  {
   myX = initX;
   myY = initY;
   mySpeed = 10;
   myImage = Toolkit.getDefaultToolkit().getImage("ship.jpg");
  	initializeAmmo();
  	health = 50;
  	active = true;
  }

  public Ship(int initX, int initY, int iSpeed)
  {
    myX = initX;
   myY = initY;
   iSpeed = mySpeed;
   myImage = Toolkit.getDefaultToolkit().getImage("ship.jpg");
  	initializeAmmo();
  	health = 50;
  	active = true;
  }
 
  public void setLoc( int X, int Y) 
  {
 myX = X;
 myY = Y;
  }


  public void setX( int X ) 
  {
  	myX = X;  
  }

	public void initializeAmmo()
	{
 for(int i = 0; i<myAmmo.length; i++)
 {
 	myAmmo[i] = new Ammo();
 }
	}

  public void setY( int Y ) 
  {
  	myY = Y;  
  }
  
  public void setSpeed( int S ) 
  {
  	mySpeed = S;  
  }  
  
  public void moveUp()
  {
  	if(myY>240)
   myY-=10;
  }
  
  public void moveDown()
  {
  	if(myY<420)
   myY+=10;
  }
  
  public void moveLeft()
  {
  	myX-=10;
  	if(myX<20)
  	{
   myX=580;
  	}
  }
  
  public void moveRight()
  {
  	myX+=10;
  	if(myX>600)
  	{
   myX = 20;
  	}
  }
  
  
  public int getX() 
  {
    return myX;
  }


  public int getY() 
  {
    return myY;
  }
  
  public int getSpeed()
  {
    return mySpeed;
  }
  
  public String toString()
  {
  	return getX() + " " + getY();	
	}
	
	public Image getImage()
	{
 return myImage;
	}
	
	public Ammo shoot()
	{
 System.out.println("h");
 for(int j = 0; j<myAmmo.length; j++)
 {
 	if(!myAmmo[j].isActive())
 	{
  myAmmo[j].setLoc(this.getX(), this.getY());
  myAmmo[j].setShot(true);
  return myAmmo[j];  
 	}
 	
 }
 return null;
	}
	
	public void act(){}
	
	public boolean isActive()
	{
 return active;
	}
	
	public void setActive(boolean x)
	{
 active = false;
	}
	public int getHealth()
	{
 return health;
	}
	
	public void isHit()
	{
 health -= 5;
	}
}

SpaceCanvas.java:

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import IAmmo.Ammo;
import java.awt.*;
import java.awt.event.*;
import java.util.ArrayList;
import javax.swing.*;
import java.io.*;
import SIShip.Ship;
import ICraft.Craft;
import java.awt.image.*;
import SIAlien.Alien;
public class SpaceCanvas extends JFrame implements KeyListener {

	
	boolean draw;
	private int X;  //this var stores the values read in for X
	private int Y;  //this var stores the values read in for Y
	private ArrayList <Craft> onScreen;
	private ArrayList <Alien> aliens;
	private ArrayList <Ammo> ammo;
	private Ship myShip;
	BufferedImage grid;
  private String myImageName; 
  private Image myImage;	
  private Image background = Toolkit.getDefaultToolkit().getImage("background.jpg");
  private Image alien = Toolkit.getDefaultToolkit().getImage("alien.jpg");
  private Alien myAlien[][] = new Alien[3][6];
  private boolean alien2;
  private boolean breaker = false;
  private int level;
  
  
  private boolean Keys[] = new boolean[5];

	public SpaceCanvas () //this method sets up the screen so that you can draw on it
	{
  alien2 = false;
  setSize( 640, 480 ); //this sets the size of the window
  setBackground(Color.white); //This sets the color of the window
  //this makes sure the window appears on the screen
  level = 1; 	
  X = 320;
  Y = 420;
  aliens = new ArrayList();
  
  for(int r=0; r<3;r++)
  {
  for(int c = 0; c<6; c++)
  {
  	myAlien[r][c] = new Alien((c*100+80), (r*60+20));	
  	myAlien[r][c].myAmmo.setImage("ammo2.jpg");
  	aliens.add(myAlien[r][c]);
  }
  }
  
  myShip = new Ship(X,Y, 10);
  onScreen = new ArrayList();
  ammo = new ArrayList();

  //if you wanted to add in timing for something
   Timer timer;  
   final int FREQ = 30; //the larger the # slows down anim	
   
   timer = new Timer(FREQ, new ActionListener()
   {
     public void actionPerformed(ActionEvent evt)
     {
      repaint();
     }
     
   });

   timer.start();

   addKeyListener(this);  //starts the key thread running
   
   show();
   
  
	}
	
	public void paint( Graphics window ) 
	{
 	Graphics2D g2 = (Graphics2D)window;
 	int w = this.getWidth();
  	int h = this.getHeight();
 	grid = (BufferedImage)(this.createImage(w,h));
 	Graphics gc = grid.createGraphics();
 	
 if(myShip.isActive())	
 {	
 	if ( Keys[0] == true ) 
     {
       myShip.moveLeft();
      

      
    	}

     if ( Keys[1] == true ) 
     {
       myShip.moveRight();
      
      
       }	

    if ( Keys[2] == true ) 
     {
       myShip.moveUp();
     
     }
    
    if ( Keys[3] == true ) 
    {
      myShip.moveDown();
      
    }  
  gc.drawImage(background, 0, 0, 640, 480, this);
  if(draw)
  {
  	for(int l = 0; l<aliens.size(); l++)
  	{	
   Ammo thisAmmo = null;
   aliens.get(l).act(1);
   double randomNum = Math.random()*aliens.get(l).getShotFactor();
   if(randomNum <1 && !aliens.get(l).myAmmo.isActive())
   {
   	thisAmmo = aliens.get(l).shoot();
   }
   if(thisAmmo!=null)
   {
   	ammo.add(thisAmmo);
   }
  	}
  	draw = false;
  	}
  	
  	else
  	{
   draw = true;
  	}
  	
  	for(int j = 0; j<ammo.size(); j++)
   {
   	if(((ammo.get(j).getX() <= (myShip.getX() + 40)) && ammo.get(j).getX()+20 >= (myShip.getX())) && ((ammo.get(j).getY() >= (myShip.getY() - 40)) && ammo.get(j).getY() <= (myShip.getY())))	
   	{
  	ammo.get(j).setActive(false);
  	ammo.remove(j);
    myShip.isHit();
    System.out.println(myShip.getHealth());
    if(myShip.getHealth()<=0)
    {
    	myShip.setActive(false);
    }
    
   	}
   }
  	
  	gc.setColor(Color.red);
  	double bufferedHealth = (double)myShip.getHealth()/50;
  	
  	int currentHealth = (int)(bufferedHealth*480);
  	
  	gc.fillRect(0, 480-currentHealth, 20, currentHealth);
  	
  	for(int l = 0; l<ammo.size(); l++)
  	{
   if(level == 1)
   	ammo.get(l).actAlien();
   if(level == 2 || level == 3)	
   	ammo.get(l).smartShot(myShip.getX(), myShip.getY());
   gc.drawImage(ammo.get(l).getImage(), ammo.get(l).getX(), ammo.get(l).getY(), 30, 30, this);
   if(ammo.get(l).isActive()==false)
   {
   	ammo.remove(l);
   }
   
   
  	}
  	
   for(int l = 0; l<aliens.size(); l++)
   {
   	
   	if(aliens.get(l).getHealth()<=0)
   	{
    
    aliens.get(l).setActive(false);
    aliens.remove(l);
   	}
   	
   	if(aliens.get(l).isActive())
   	{
    gc.drawImage(aliens.get(l).getImage(), aliens.get(l).getX(), aliens.get(l).getY(), 50, 50, this);
   	}
   }
   if(win())
   {
   	if(level<3)
   	{
    level++;
    if(level == 2)	
    {
    	Alien2 [] alien2 = new Alien2[3];
    	for(int start = 0; start <3; start++)
    	{
     alien2[start] = new Alien2(start*200+20, 30);
     aliens.add(alien2[start]);
    	}
    }
    if(level==3)
    {
    	BigBoss boss = new BigBoss(20, 30);
    	aliens.add(boss);
    }
   	}
       
   }
   gc.drawImage(myShip.getImage(), myShip.getX(), myShip.getY(), 50, 60, this);
  	
   for(int j = 0; j<onScreen.size(); j++)
   {
   	onScreen.get(j).act();
   	
   	if(onScreen.get(j).isActive())
   	{
    for(int l = 0; l<aliens.size(); l++)	
    {
    	if(j>=onScreen.size() || l>=aliens.size()){
     System.out.println("break");
     breaker = true;
     break;
     
    	}
    	
    	if(((onScreen.get(j).getX() <= (aliens.get(l).getX() + 40)) && onScreen.get(j).getX() >= (aliens.get(l).getX())) && ((onScreen.get(j).getY() <= (aliens.get(l).getY() + 40)) && onScreen.get(j).getY() >= (aliens.get(l).getY())))
    	{
     aliens.get(l).isHit();
     onScreen.get(j).setActive(false);
     onScreen.remove(j);
      	
    	} 
    	
    	System.out.println(j + " " + onScreen.size());
    	
    }  
   }
    
    	
    
   	if(breaker)
   	{
    	breaker = false;
    	break;
   	}
    
   
   	if(onScreen.get(j)!=null)
    	gc.drawImage(onScreen.get(j).getImage(), onScreen.get(j).getX(), onScreen.get(j).getY(), 25, 25, this); 
   	
   	if(!onScreen.get(j).isActive())
   	{
    onScreen.remove(j);
    }
    
    
   
   
   }
   
   
   
  	g2.drawImage(grid, null, 0, 0);
	
  
	}
	else
	{
 gc.setColor(Color.red);
 gc.drawString("you lose", 320, 240);
	}
	}

  public void keyPressed(KeyEvent e) 
  {
  	if (e.getKeyCode() == KeyEvent.VK_LEFT)
    {
      
      Keys[0] = true;
      
    }
    
    if (e.getKeyCode() == KeyEvent.VK_RIGHT)
         
    {
     	Keys[1] = true;
    }
    
    if (e.getKeyCode() == KeyEvent.VK_UP) 
    {
     	Keys[2] = true;
    }
    
    if (e.getKeyCode() == KeyEvent.VK_DOWN) 
    {
    	Keys[3] = true;
    }
    
    if(e.getKeyCode() == KeyEvent.VK_SPACE)
    {
    	Keys[4] = true;
    }
    
    
    
    
  }

  public void keyReleased(KeyEvent e) 
  {
  	if(Keys[4] == true)
    {
    	Ammo temp = myShip.shoot();
    	if(temp != null)
    	{
     onScreen.add(temp);
    	}
    	
    }

  	
  	if (e.getKeyCode() == KeyEvent.VK_LEFT)
    {
      
      Keys[0] = false;
      
    }
    
    if (e.getKeyCode() == KeyEvent.VK_RIGHT)
         
    {
     	Keys[1] = false;
    }
    
    if (e.getKeyCode() == KeyEvent.VK_UP) 
    {
     	Keys[2] = false;
    }
    
    if (e.getKeyCode() == KeyEvent.VK_DOWN) 
    {
    	Keys[3] = false;
    }
    
    if(e.getKeyCode() == KeyEvent.VK_SPACE)
    	Keys[4] = false;

  }
  
	public void keyTyped(KeyEvent e) 
	{

    
  }

	public static void main( String args[] ) 
	{
  //SpaceCanvas test = new SpaceCanvas ();  
	}
	
	public boolean win()
	{
 if(aliens.size()==0)
 {
 	return true;
 }
 
 return false;
	}
}

import IAmmo.Ammo;
import java.awt.*;
import java.awt.event.*;
import java.util.ArrayList;
import javax.swing.*;
import java.io.*;
import SIShip.Ship;
import ICraft.Craft;
import java.awt.image.*;
import SIAlien.Alien;
public class SpaceCanvas extends JFrame implements KeyListener {

	
	boolean draw;
	private int X;  //this var stores the values read in for X
	private int Y;  //this var stores the values read in for Y
	private ArrayList <Craft> onScreen;
	private ArrayList <Alien> aliens;
	private ArrayList <Ammo> ammo;
	private Ship myShip;
	BufferedImage grid;
  private String myImageName; 
  private Image myImage;	
  private Image background = Toolkit.getDefaultToolkit().getImage("background.jpg");
  private Image alien = Toolkit.getDefaultToolkit().getImage("alien.jpg");
  private Alien myAlien[][] = new Alien[3][6];
  private boolean alien2;
  private boolean breaker = false;
  private int level;
  
  
  private boolean Keys[] = new boolean[5];

	public SpaceCanvas () //this method sets up the screen so that you can draw on it
	{
  alien2 = false;
  setSize( 640, 480 ); //this sets the size of the window
  setBackground(Color.white); //This sets the color of the window
  //this makes sure the window appears on the screen
  level = 1; 	
  X = 320;
  Y = 420;
  aliens = new ArrayList();
  
  for(int r=0; r<3;r++)
  {
  for(int c = 0; c<6; c++)
  {
  	myAlien[r][c] = new Alien((c*100+80), (r*60+20));	
  	myAlien[r][c].myAmmo.setImage("ammo2.jpg");
  	aliens.add(myAlien[r][c]);
  }
  }
  
  myShip = new Ship(X,Y, 10);
  onScreen = new ArrayList();
  ammo = new ArrayList();

  //if you wanted to add in timing for something
   Timer timer;  
   final int FREQ = 30; //the larger the # slows down anim	
   
   timer = new Timer(FREQ, new ActionListener()
   {
     public void actionPerformed(ActionEvent evt)
     {
      repaint();
     }
     
   });

   timer.start();

   addKeyListener(this);  //starts the key thread running
   
   show();
   
  
	}
	
	public void paint( Graphics window ) 
	{
 	Graphics2D g2 = (Graphics2D)window;
 	int w = this.getWidth();
  	int h = this.getHeight();
 	grid = (BufferedImage)(this.createImage(w,h));
 	Graphics gc = grid.createGraphics();
 	
 if(myShip.isActive())	
 {	
 	if ( Keys[0] == true ) 
     {
       myShip.moveLeft();
      

      
    	}

     if ( Keys[1] == true ) 
     {
       myShip.moveRight();
      
      
       }	

    if ( Keys[2] == true ) 
     {
       myShip.moveUp();
     
     }
    
    if ( Keys[3] == true ) 
    {
      myShip.moveDown();
      
    }  
  gc.drawImage(background, 0, 0, 640, 480, this);
  if(draw)
  {
  	for(int l = 0; l<aliens.size(); l++)
  	{	
   Ammo thisAmmo = null;
   aliens.get(l).act(1);
   double randomNum = Math.random()*aliens.get(l).getShotFactor();
   if(randomNum <1 && !aliens.get(l).myAmmo.isActive())
   {
   	thisAmmo = aliens.get(l).shoot();
   }
   if(thisAmmo!=null)
   {
   	ammo.add(thisAmmo);
   }
  	}
  	draw = false;
  	}
  	
  	else
  	{
   draw = true;
  	}
  	
  	for(int j = 0; j<ammo.size(); j++)
   {
   	if(((ammo.get(j).getX() <= (myShip.getX() + 40)) && ammo.get(j).getX()+20 >= (myShip.getX())) && ((ammo.get(j).getY() >= (myShip.getY() - 40)) && ammo.get(j).getY() <= (myShip.getY())))	
   	{
  	ammo.get(j).setActive(false);
  	ammo.remove(j);
    myShip.isHit();
    System.out.println(myShip.getHealth());
    if(myShip.getHealth()<=0)
    {
    	myShip.setActive(false);
    }
    
   	}
   }
  	
  	gc.setColor(Color.red);
  	double bufferedHealth = (double)myShip.getHealth()/50;
  	
  	int currentHealth = (int)(bufferedHealth*480);
  	
  	gc.fillRect(0, 480-currentHealth, 20, currentHealth);
  	
  	for(int l = 0; l<ammo.size(); l++)
  	{
   if(level == 1)
   	ammo.get(l).actAlien();
   if(level == 2 || level == 3)	
   	ammo.get(l).smartShot(myShip.getX(), myShip.getY());
   gc.drawImage(ammo.get(l).getImage(), ammo.get(l).getX(), ammo.get(l).getY(), 30, 30, this);
   if(ammo.get(l).isActive()==false)
   {
   	ammo.remove(l);
   }
   
   
  	}
  	
   for(int l = 0; l<aliens.size(); l++)
   {
   	
   	if(aliens.get(l).getHealth()<=0)
   	{
    
    aliens.get(l).setActive(false);
    aliens.remove(l);
   	}
   	
   	if(aliens.get(l).isActive())
   	{
    gc.drawImage(aliens.get(l).getImage(), aliens.get(l).getX(), aliens.get(l).getY(), 50, 50, this);
   	}
   }
   if(win())
   {
   	if(level<3)
   	{
    level++;
    if(level == 2)	
    {
    	Alien2 [] alien2 = new Alien2[3];
    	for(int start = 0; start <3; start++)
    	{
     alien2[start] = new Alien2(start*200+20, 30);
     aliens.add(alien2[start]);
    	}
    }
    if(level==3)
    {
    	BigBoss boss = new BigBoss(20, 30);
    	aliens.add(boss);
    }
   	}
       
   }
   gc.drawImage(myShip.getImage(), myShip.getX(), myShip.getY(), 50, 60, this);
  	
   for(int j = 0; j<onScreen.size(); j++)
   {
   	onScreen.get(j).act();
   	
   	if(onScreen.get(j).isActive())
   	{
    for(int l = 0; l<aliens.size(); l++)	
    {
    	if(j>=onScreen.size() || l>=aliens.size()){
     System.out.println("break");
     breaker = true;
     break;
     
    	}
    	
    	if(((onScreen.get(j).getX() <= (aliens.get(l).getX() + 40)) && onScreen.get(j).getX() >= (aliens.get(l).getX())) && ((onScreen.get(j).getY() <= (aliens.get(l).getY() + 40)) && onScreen.get(j).getY() >= (aliens.get(l).getY())))
    	{
     aliens.get(l).isHit();
     onScreen.get(j).setActive(false);
     onScreen.remove(j);
      	
    	} 
    	
    	System.out.println(j + " " + onScreen.size());
    	
    }  
   }
    
    	
    
   	if(breaker)
   	{
    	breaker = false;
    	break;
   	}
    
   
   	if(onScreen.get(j)!=null)
    	gc.drawImage(onScreen.get(j).getImage(), onScreen.get(j).getX(), onScreen.get(j).getY(), 25, 25, this); 
   	
   	if(!onScreen.get(j).isActive())
   	{
    onScreen.remove(j);
    }
    
    
   
   
   }
   
   
   
  	g2.drawImage(grid, null, 0, 0);
	
  
	}
	else
	{
 gc.setColor(Color.red);
 gc.drawString("you lose", 320, 240);
	}
	}

  public void keyPressed(KeyEvent e) 
  {
  	if (e.getKeyCode() == KeyEvent.VK_LEFT)
    {
      
      Keys[0] = true;
      
    }
    
    if (e.getKeyCode() == KeyEvent.VK_RIGHT)
         
    {
     	Keys[1] = true;
    }
    
    if (e.getKeyCode() == KeyEvent.VK_UP) 
    {
     	Keys[2] = true;
    }
    
    if (e.getKeyCode() == KeyEvent.VK_DOWN) 
    {
    	Keys[3] = true;
    }
    
    if(e.getKeyCode() == KeyEvent.VK_SPACE)
    {
    	Keys[4] = true;
    }
    
    
    
    
  }

  public void keyReleased(KeyEvent e) 
  {
  	if(Keys[4] == true)
    {
    	Ammo temp = myShip.shoot();
    	if(temp != null)
    	{
     onScreen.add(temp);
    	}
    	
    }

  	
  	if (e.getKeyCode() == KeyEvent.VK_LEFT)
    {
      
      Keys[0] = false;
      
    }
    
    if (e.getKeyCode() == KeyEvent.VK_RIGHT)
         
    {
     	Keys[1] = false;
    }
    
    if (e.getKeyCode() == KeyEvent.VK_UP) 
    {
     	Keys[2] = false;
    }
    
    if (e.getKeyCode() == KeyEvent.VK_DOWN) 
    {
    	Keys[3] = false;
    }
    
    if(e.getKeyCode() == KeyEvent.VK_SPACE)
    	Keys[4] = false;

  }
  
	public void keyTyped(KeyEvent e) 
	{

    
  }

	public static void main( String args[] ) 
	{
  //SpaceCanvas test = new SpaceCanvas ();  
	}
	
	public boolean win()
	{
 if(aliens.size()==0)
 {
 	return true;
 }
 
 return false;
	}
}

Alien.java:

(Toggle Plain Text)

package SIAlien;
import java.awt.*;
import IAmmo.Ammo;
import ICraft.Craft;
import java.lang.Math;

public class Alien implements Craft
{	
	int moveCount = 0;
	private int myX;
	private int myY;
	private int mySpeed;
  private int health;
  private Image myImage;
  public Ammo myAmmo;	
  private boolean active;
  private boolean shot = false;
  private int whereToMove;
  private int LEFT = 1;
  private int RIGHT = 2;
  private int DOWN = 3;
  private int UP = 4;
  private int shotFactor;
    
  public Alien()
  {
 myY = 0;
  	myX = 0;
  	mySpeed = 10;
  	health = 10;
  	myImage = Toolkit.getDefaultToolkit().getImage("Alien.jpg");
  	myAmmo = new Ammo();
  	active = true;
  	whereToMove = LEFT;
  	shotFactor = 30;
  }
  
  public Alien(int initX, int initY) 
  {
   myX = initX;
   myY = initY;
   mySpeed = 5;
   myImage = Toolkit.getDefaultToolkit().getImage("Alien.jpg");
  	health = 10;
  	myAmmo = new Ammo();
    active = true;
  	whereToMove = LEFT;
  	shotFactor = 30;
  }
  
  public Alien(int initX, int initY, int iSpeed)
  {
    myX = initX;
   myY = initY;
   iSpeed = mySpeed;
   myImage = Toolkit.getDefaultToolkit().getImage("Alien.jpg");
  	health = 50;
  	myAmmo = new Ammo();
  	active = true;
  	whereToMove = LEFT;
  	startMoving();
  	shotFactor = 30;
  }
  
  public void setLoc( int X, int Y) 
  {
 myX = X;
 myY = Y;
  }


  public void setX( int X ) 
  {
  	myX = X;  
  }
  
  public void setY( int Y ) 
  {
  	myY = Y;  
  }
  
  public void setSpeed( int S ) 
  {
  	mySpeed = S;  
  }  
  
  public void moveUp()
  {
  	myY-=10;//0;
  }
  
  public void moveDown()
  {
  	myY+=10;//0;
  }
  
  public void moveLeft()
  {
  	myX-=10;//0;
  }
  
  public void moveRight()
  {
  	myX+=10;//0;
  }
  
  
  public int getX() 
  {
    return myX;
  }


  public int getY() 
  {
    return myY;
  }
  
  public int getSpeed()
  {
    return mySpeed;
  }
  
  public String toString()
  {
  	return getX() + " " + getY();	
	}
	
	public Image getImage()
	{
 return myImage;
	}
	
	public void move()
	{
	
 for(int i = 0; i<4; i++)
 {
 	moveDown();
 }
	
 for(int i = 0; i<4; i++)
 {
 	//movet();
 }
 
 for(int i = 0; i<4; i++)
 {
 	moveLeft();
 }
 
 for(int i = 0; i<4; i++)
 {
 	moveLeft();
 }
 
	}
	public void act(){}
	public void act(int x)
	{
 
 if(moveCount == 20)
 {
 	moveCount = 0;
 }
 if(moveCount< 5)
 {
 	moveLeft();
 	moveCount++;
 }
 
 if(moveCount <10&& moveCount >=5)
 {
 	moveDown();
 	moveCount++;
 }	
 if(moveCount <15&& moveCount >=10)
 {
 	moveRight();
 	moveCount++;
 }
 if(moveCount <20&& moveCount >=15)
 {
 	moveUp();
 	moveCount++;
 }
 
	
	}
	
	public boolean isActive()
	{
 return active;
	}
	
	public void isHit()
	{
 health -= 5;
	}
	
	public int getHealth()
	{
 return health;
	}
	
	public void setActive(boolean x)
	{
 active = x;
	}
	
	public void startMoving()
	{
 if(whereToMove == LEFT)	
 {
 	for(int i = 0; i<40; i++)
 	{
  moveLeft();
 	//	SpaceCanvas.repaint();
 	}
 	whereToMove = DOWN;
 }
 
 else if(whereToMove == DOWN)	
 {
 	for(int i = 0; i<40; i++)
 	{
  moveDown();
  //SpaceCrepaint();
 	}
 	whereToMove = RIGHT;
 }
 
 else if(whereToMove == RIGHT)	
 {
 	for(int i = 0; i<40; i++)
 	{
  moveRight();
 // repaint();
 	}
 	whereToMove = UP;
 }
 
 else if(whereToMove == UP)	
 {
 	for(int i = 0; i<40; i++)
 	{
  moveUp();
 // repaint();
 	}
 	whereToMove = LEFT;
 }
	}
	
	public Ammo shoot()
	{
 
 	myAmmo.setLoc(this.getX(), this.getY());
 	myAmmo.setShot(true);
 	return myAmmo;  
 
	}
	
	public void setHealth(int x)
	{
 health = x;
	}
	
	public int getShotFactor()
	{
 return shotFactor;
	}
	
	public void setShotFactor(int newShotFactor)
	{
 shotFactor = newShotFactor;
	}
	public void setImage(String imageName)
	{
 myImage = Toolkit.getDefaultToolkit().getImage(imageName);
	}
}

package SIAlien;
import java.awt.*;
import IAmmo.Ammo;
import ICraft.Craft;
import java.lang.Math;

public class Alien implements Craft
{	
	int moveCount = 0;
	private int myX;
	private int myY;
	private int mySpeed;
  private int health;
  private Image myImage;
  public Ammo myAmmo;	
  private boolean active;
  private boolean shot = false;
  private int whereToMove;
  private int LEFT = 1;
  private int RIGHT = 2;
  private int DOWN = 3;
  private int UP = 4;
  private int shotFactor;
    
  public Alien()
  {
 myY = 0;
  	myX = 0;
  	mySpeed = 10;
  	health = 10;
  	myImage = Toolkit.getDefaultToolkit().getImage("Alien.jpg");
  	myAmmo = new Ammo();
  	active = true;
  	whereToMove = LEFT;
  	shotFactor = 30;
  }
  
  public Alien(int initX, int initY) 
  {
   myX = initX;
   myY = initY;
   mySpeed = 5;
   myImage = Toolkit.getDefaultToolkit().getImage("Alien.jpg");
  	health = 10;
  	myAmmo = new Ammo();
    active = true;
  	whereToMove = LEFT;
  	shotFactor = 30;
  }
  
  public Alien(int initX, int initY, int iSpeed)
  {
    myX = initX;
   myY = initY;
   iSpeed = mySpeed;
   myImage = Toolkit.getDefaultToolkit().getImage("Alien.jpg");
  	health = 50;
  	myAmmo = new Ammo();
  	active = true;
  	whereToMove = LEFT;
  	startMoving();
  	shotFactor = 30;
  }
  
  public void setLoc( int X, int Y) 
  {
 myX = X;
 myY = Y;
  }


  public void setX( int X ) 
  {
  	myX = X;  
  }
  
  public void setY( int Y ) 
  {
  	myY = Y;  
  }
  
  public void setSpeed( int S ) 
  {
  	mySpeed = S;  
  }  
  
  public void moveUp()
  {
  	myY-=10;//0;
  }
  
  public void moveDown()
  {
  	myY+=10;//0;
  }
  
  public void moveLeft()
  {
  	myX-=10;//0;
  }
  
  public void moveRight()
  {
  	myX+=10;//0;
  }
  
  
  public int getX() 
  {
    return myX;
  }


  public int getY() 
  {
    return myY;
  }
  
  public int getSpeed()
  {
    return mySpeed;
  }
  
  public String toString()
  {
  	return getX() + " " + getY();	
	}
	
	public Image getImage()
	{
 return myImage;
	}
	
	public void move()
	{
	
 for(int i = 0; i<4; i++)
 {
 	moveDown();
 }
	
 for(int i = 0; i<4; i++)
 {
 	//movet();
 }
 
 for(int i = 0; i<4; i++)
 {
 	moveLeft();
 }
 
 for(int i = 0; i<4; i++)
 {
 	moveLeft();
 }
 
	}
	public void act(){}
	public void act(int x)
	{
 
 if(moveCount == 20)
 {
 	moveCount = 0;
 }
 if(moveCount< 5)
 {
 	moveLeft();
 	moveCount++;
 }
 
 if(moveCount <10&& moveCount >=5)
 {
 	moveDown();
 	moveCount++;
 }	
 if(moveCount <15&& moveCount >=10)
 {
 	moveRight();
 	moveCount++;
 }
 if(moveCount <20&& moveCount >=15)
 {
 	moveUp();
 	moveCount++;
 }
 
	
	}
	
	public boolean isActive()
	{
 return active;
	}
	
	public void isHit()
	{
 health -= 5;
	}
	
	public int getHealth()
	{
 return health;
	}
	
	public void setActive(boolean x)
	{
 active = x;
	}
	
	public void startMoving()
	{
 if(whereToMove == LEFT)	
 {
 	for(int i = 0; i<40; i++)
 	{
  moveLeft();
 	//	SpaceCanvas.repaint();
 	}
 	whereToMove = DOWN;
 }
 
 else if(whereToMove == DOWN)	
 {
 	for(int i = 0; i<40; i++)
 	{
  moveDown();
  //SpaceCrepaint();
 	}
 	whereToMove = RIGHT;
 }
 
 else if(whereToMove == RIGHT)	
 {
 	for(int i = 0; i<40; i++)
 	{
  moveRight();
 // repaint();
 	}
 	whereToMove = UP;
 }
 
 else if(whereToMove == UP)	
 {
 	for(int i = 0; i<40; i++)
 	{
  moveUp();
 // repaint();
 	}
 	whereToMove = LEFT;
 }
	}
	
	public Ammo shoot()
	{
 
 	myAmmo.setLoc(this.getX(), this.getY());
 	myAmmo.setShot(true);
 	return myAmmo;  
 
	}
	
	public void setHealth(int x)
	{
 health = x;
	}
	
	public int getShotFactor()
	{
 return shotFactor;
	}
	
	public void setShotFactor(int newShotFactor)
	{
 shotFactor = newShotFactor;
	}
	public void setImage(String imageName)
	{
 myImage = Toolkit.getDefaultToolkit().getImage(imageName);
	}
}

Alien2.java:

(Toggle Plain Text)

import java.awt.*;
import IAmmo.Ammo;
import ICraft.Craft;
import java.lang.Math;
import SIAlien.Alien;

public class Alien2 extends Alien
{
	private int direction;
	private int FORWARD = 1;
	private int BACKWARD = 2;
	private int moveCount=1;
	Ammo [] shots = new Ammo[6];
	
	public Alien2()
	{
 super();
 setHealth(50);
 direction = FORWARD;
 setShotFactor(8);
 for(int i = 0; i<shots.length; i++)
 {
 	shots[i] = new Ammo();
 	shots[i].setImage("ammo2.jpg");
 }
	}
	
	public Alien2(int initX, int initY)
	{
 super(initX, initY);
 setHealth(50);
 direction = FORWARD;
 setShotFactor(8);
 for(int i = 0; i<shots.length; i++)
 {
 	shots[i] = new Ammo();
 	shots[i].setImage("ammo2.jpg");
 }
	}	
	public Alien2(int initX, int initY, int iSpeed)
	{
 super(initX, initY, iSpeed);
 setHealth(50);
 direction = FORWARD;
 setShotFactor(8);
 for(int i = 0; i<shots.length; i++)
 {
 	shots[i] = new Ammo();
 	shots[i].setImage("ammo2.jpg");
 }
	}
	
	public void act(int x)
	{
 if(direction == FORWARD)
 {
 	if(moveCount<=10)
 	{
  setX(getX()+4);
  setY(getY()+10);  
  moveCount++;
 	}
 	else if(moveCount > 10 && moveCount <= 20)
 	{
  setX(getX()+4);
  setY(getY()-10);
  moveCount++;  	
 	}
 	else if(moveCount > 20 && moveCount <=30)
 	{
  setX(getX()+4);
  setY(getY()+10);
  moveCount++;
 	}
 	else if(moveCount>30 && moveCount <= 40)
 	{
  setX(getX()+4);
  setY(getY()-10);
  moveCount++;
 	}
 	else if(moveCount>40)
 	{
  moveCount = 39;
  direction = BACKWARD;
 	}
 }
 	
 if(direction == BACKWARD)
 {
 	if(moveCount>=30)
 	{
  setX(getX()-4);
  setY(getY()+10);  
  moveCount--;
 	}
 	else if(moveCount >= 20 && moveCount < 30)
 	{
  setX(getX()-4);
  setY(getY()-10);
  moveCount--;  	
 	}
 	else if(moveCount >= 10 && moveCount <20)
 	{
  setX(getX()-4);
  setY(getY()+10);
  moveCount--;
 	}
 	else if(moveCount>=0 && moveCount <= 10)
 	{
  setX(getX()-4);
  setY(getY()-10);
  moveCount--;
 	}
 	else if(moveCount<=0)
 	{
  moveCount = 1;
  direction = FORWARD;
 	}
 }
	}
	
	public Ammo shoot()
	{
 System.out.println("h");
 for(int j = 0; j<shots.length; j++)
 {
 	if(!shots[j].isActive())
 	{
  shots[j].setLoc(this.getX(), this.getY());
  shots[j].setShot(true);
  return shots[j];  
 	}
 	
 }
 return null;
	}
}

import java.awt.*;
import IAmmo.Ammo;
import ICraft.Craft;
import java.lang.Math;
import SIAlien.Alien;

public class Alien2 extends Alien
{
	private int direction;
	private int FORWARD = 1;
	private int BACKWARD = 2;
	private int moveCount=1;
	Ammo [] shots = new Ammo[6];
	
	public Alien2()
	{
 super();
 setHealth(50);
 direction = FORWARD;
 setShotFactor(8);
 for(int i = 0; i<shots.length; i++)
 {
 	shots[i] = new Ammo();
 	shots[i].setImage("ammo2.jpg");
 }
	}
	
	public Alien2(int initX, int initY)
	{
 super(initX, initY);
 setHealth(50);
 direction = FORWARD;
 setShotFactor(8);
 for(int i = 0; i<shots.length; i++)
 {
 	shots[i] = new Ammo();
 	shots[i].setImage("ammo2.jpg");
 }
	}	
	public Alien2(int initX, int initY, int iSpeed)
	{
 super(initX, initY, iSpeed);
 setHealth(50);
 direction = FORWARD;
 setShotFactor(8);
 for(int i = 0; i<shots.length; i++)
 {
 	shots[i] = new Ammo();
 	shots[i].setImage("ammo2.jpg");
 }
	}
	
	public void act(int x)
	{
 if(direction == FORWARD)
 {
 	if(moveCount<=10)
 	{
  setX(getX()+4);
  setY(getY()+10);  
  moveCount++;
 	}
 	else if(moveCount > 10 && moveCount <= 20)
 	{
  setX(getX()+4);
  setY(getY()-10);
  moveCount++;  	
 	}
 	else if(moveCount > 20 && moveCount <=30)
 	{
  setX(getX()+4);
  setY(getY()+10);
  moveCount++;
 	}
 	else if(moveCount>30 && moveCount <= 40)
 	{
  setX(getX()+4);
  setY(getY()-10);
  moveCount++;
 	}
 	else if(moveCount>40)
 	{
  moveCount = 39;
  direction = BACKWARD;
 	}
 }
 	
 if(direction == BACKWARD)
 {
 	if(moveCount>=30)
 	{
  setX(getX()-4);
  setY(getY()+10);  
  moveCount--;
 	}
 	else if(moveCount >= 20 && moveCount < 30)
 	{
  setX(getX()-4);
  setY(getY()-10);
  moveCount--;  	
 	}
 	else if(moveCount >= 10 && moveCount <20)
 	{
  setX(getX()-4);
  setY(getY()+10);
  moveCount--;
 	}
 	else if(moveCount>=0 && moveCount <= 10)
 	{
  setX(getX()-4);
  setY(getY()-10);
  moveCount--;
 	}
 	else if(moveCount<=0)
 	{
  moveCount = 1;
  direction = FORWARD;
 	}
 }
	}
	
	public Ammo shoot()
	{
 System.out.println("h");
 for(int j = 0; j<shots.length; j++)
 {
 	if(!shots[j].isActive())
 	{
  shots[j].setLoc(this.getX(), this.getY());
  shots[j].setShot(true);
  return shots[j];  
 	}
 	
 }
 return null;
	}
}

BigBoss.java:

(Toggle Plain Text)

import java.awt.*;
import IAmmo.Ammo;
import ICraft.Craft;
import java.lang.Math;
import SIAlien.Alien;

public class BigBoss extends Alien2
{
	Ammo [] shots = new Ammo[15];
	int direction;
	int FORWARD = 1;
	int BACKWARD = 0;

	public BigBoss()
	{
 super();
 setHealth(25*5);
 direction = FORWARD;
 setShotFactor(4);
 for(int i = 0; i<shots.length; i++)
 {
 	shots[i] = new Ammo();
 	shots[i].setImage("ammo2.jpg");
 }
	}
	
	public BigBoss(int initx, int inity)
	{
 super(initx, inity);
 setHealth(25*5);
 direction = FORWARD;
 setShotFactor(4);
 for(int i = 0; i<shots.length; i++)
 {
 	shots[i] = new Ammo();
 	shots[i].setImage("ammo2.jpg");
 }
	}
	
	public BigBoss(int initx, int inity, int ispeed)
	{
 super(initx, inity, ispeed);
 setHealth(25*5);
 direction = FORWARD;
 setShotFactor(4);
 for(int i = 0; i<shots.length; i++)
 {
 	shots[i] = new Ammo();
 	shots[i].setImage("ammo2.jpg");
 }
	}
	
	public void act(int x)
	{
 if(direction==FORWARD)
 {
 	setX(getX()+10);
 	if(getX() == 600)
 	{
  direction = BACKWARD;
 	}
 }
 if(direction == BACKWARD)
 {
 	setX(getX()-10);
 	if(getX()==20)
 	{
  direction = FORWARD;
 	}
 }
	}
	
	public Ammo shoot()
	{
 System.out.println("h");
 for(int j = 0; j<shots.length; j++)
 {
 	if(!shots[j].isActive())
 	{
  shots[j].setLoc(this.getX(), this.getY());
  shots[j].setShot(true);
  return shots[j];  
 	}
 	
 }
 return null;
	}
}

What would you guys reccomend for me to improve this? I'll go through and clean up the code a little bit, but later.

big_k105 · Oct 29th, 2004, 7:07 PM

how would i go about compiling so i can run this? thanks

Mjordan2nd · Oct 29th, 2004, 10:03 PM

You'll need jdk 1.4.2 at least. I'm not sure how it works for Linux. This was all done on a windows machine, Big_k, so I can't help there. Sorry.

I guess the first think to compile would be the Craft class, then the Ammo class, then Ship, then Alien, Alien2, BigBoss, SpaceCanvas, then Game. After that, run Game. That should work.

Overmind · Oct 29th, 2004, 11:55 PM

Quote:

My laptop is 2.4 ghz, 512 ram, and 64 mb video card yet it takes nearly 30 seconds just to load my background image.

Ill try it sometime....but first, ill overclock my 2500+ to 3000...just to make sure it all works smoothly.

zeta · Oct 31st, 2004, 11:20 PM

how do run this thanks?
What do you mean by compiling btw...(sorry i m kinda newb at this)

Ooble · Nov 1st, 2004, 11:55 AM

BTW MJ, it'll probably be the images that slow the game down - Windows isn't very fast with that sort of thing. This can't be said enough - if you want to make games, use C++.

Mjordan2nd · Nov 1st, 2004, 3:53 PM

I figured it was the images, but just wanted to make sure. Unfortunately, our teacher is forcing us to use Java, so C/C++ isn't an option.

Ooble · Nov 2nd, 2004, 12:29 PM

Using Java to make a game??? Kinda retarded if you ask me - the language simply isn't geared that way.

Mjordan2nd · Nov 2nd, 2004, 12:32 PM

Tell our teacher that. He seems to think that Java is god. He also seems to think that Linux is the devil, so he's questionable, but he does know what he's doing. Smart man, even though my opinions clash with his. I'm sure he knows what he's doing.

Mjordan2nd · Nov 4th, 2004, 4:13 PM

You need at least 1.5.0 to compile, just in case anyone was wondering, or having trouble.

Oct 29th, 2004, 6:24 PM	#1
Mjordan2nd The Supreme Ruler Join Date: May 2004 Location: Houston Posts: 1,476 Rep Power: 6	There are still a few things I'd like to do before I say I'm finished with this. First of all, I get exceptions at times which I'd like to get rid of. If anyone can help me out with fixing those I'd really appreciate it. Secondly, I'd like to get new images so that the aliens don't all look alike on each level (by the way, in case you don't know, I bummed those images off of starcraft). Another thing I was wondering about was why it runs so slowly on some computers, even the faster ones. My laptop is 2.4 ghz, 512 ram, and 64 mb video card yet it takes nearly 30 seconds just to load my background image. Now, at school this game works perfectly, but those are 3.2 ghz, 1 gb ram machines. Anyway, enough talk. Here it is. http://jupiter.walagata.com/w/mjorda...ceinvaders.zip Ammo: (Toggle Plain Text) package IAmmo; import ICraft.Craft; import java.awt.; public class Ammo implements Craft { private int myX; private int myY; private int mySpeed; private int damage; private boolean shot; private Image myImage; private int impact=0; private int xInc; private int yInc; public Ammo() { myX = 0; myY = 0; mySpeed = 7; myImage = Toolkit.getDefaultToolkit().getImage("ammo.jpg"); shot = false; damage = 5; } public Ammo(int initX, int initY) { myX = initX; myY = initY; mySpeed = 7; myImage = Toolkit.getDefaultToolkit().getImage("ammo.jpg"); shot = false; damage = 5; } public Ammo(int initX, int initY, String imageName) { myX = initX; myY = initY; myImage = Toolkit.getDefaultToolkit().getImage(imageName); shot = true; damage = 5; mySpeed = 7; } public void setLoc( int X, int Y) { myX = X; myY = Y; } public void setX( int X ) { myX = X; } public void setY( int Y ) { myY = Y; } public void setSpeed( int S ) { mySpeed = S; } public void moveUp() { myY -= mySpeed; } public void moveDown() { myY += mySpeed; } public void moveLeft() { myX -= mySpeed; } public void moveRight() { myX += mySpeed; } public int getX() { return myX; } public int getY() { return myY; } public int getSpeed() { return mySpeed; } public Image getImage() { return myImage; } public void setImage(String alienImage) { myImage = Toolkit.getDefaultToolkit().getImage(alienImage); } public int getDamage() { return damage; } public void setDamage(int newDamage) { damage = newDamage; } public void setShot(boolean newShot) { shot = newShot; } public boolean isActive() { return shot; } public void act() { if(myY>=0) { moveUp(); } else { setShot(false); } } public void setActive(boolean x) { shot = x; } public void actAlien() { if(myY<=480) { moveDown(); } else { setShot(false); } } public void smartShot(int x, int y) { if(myY<=480) { int shipX = x; int shipY = y; myY+=10; int xDist = Math.abs(myX - x); int xMove = xDist/10; if(myX>x) { myX-=xMove; } if(myX<x) { myX+=xMove; } } else { setShot(false); } } } package IAmmo; import ICraft.Craft; import java.awt.; public class Ammo implements Craft { private int myX; private int myY; private int mySpeed; private int damage; private boolean shot; private Image myImage; private int impact=0; private int xInc; private int yInc; public Ammo() { myX = 0; myY = 0; mySpeed = 7; myImage = Toolkit.getDefaultToolkit().getImage("ammo.jpg"); shot = false; damage = 5; } public Ammo(int initX, int initY) { myX = initX; myY = initY; mySpeed = 7; myImage = Toolkit.getDefaultToolkit().getImage("ammo.jpg"); shot = false; damage = 5; } public Ammo(int initX, int initY, String imageName) { myX = initX; myY = initY; myImage = Toolkit.getDefaultToolkit().getImage(imageName); shot = true; damage = 5; mySpeed = 7; } public void setLoc( int X, int Y) { myX = X; myY = Y; } public void setX( int X ) { myX = X; } public void setY( int Y ) { myY = Y; } public void setSpeed( int S ) { mySpeed = S; } public void moveUp() { myY -= mySpeed; } public void moveDown() { myY += mySpeed; } public void moveLeft() { myX -= mySpeed; } public void moveRight() { myX += mySpeed; } public int getX() { return myX; } public int getY() { return myY; } public int getSpeed() { return mySpeed; } public Image getImage() { return myImage; } public void setImage(String alienImage) { myImage = Toolkit.getDefaultToolkit().getImage(alienImage); } public int getDamage() { return damage; } public void setDamage(int newDamage) { damage = newDamage; } public void setShot(boolean newShot) { shot = newShot; } public boolean isActive() { return shot; } public void act() { if(myY>=0) { moveUp(); } else { setShot(false); } } public void setActive(boolean x) { shot = x; } public void actAlien() { if(myY<=480) { moveDown(); } else { setShot(false); } } public void smartShot(int x, int y) { if(myY<=480) { int shipX = x; int shipY = y; myY+=10; int xDist = Math.abs(myX - x); int xMove = xDist/10; if(myX>x) { myX-=xMove; } if(myX<x) { myX+=xMove; } } else { setShot(false); } } } Craft.java: (Toggle Plain Text) package ICraft; import java.awt.; public interface Craft { public void setLoc( int X, int Y); public void setX( int X ); public void setY( int Y ); public void setSpeed( int S ); public void moveUp(); public void moveDown(); public void moveLeft(); public void moveRight(); public int getX(); public int getY(); public int getSpeed(); public Image getImage(); public void act(); public boolean isActive(); public void setActive(boolean x); } package ICraft; import java.awt.; public interface Craft { public void setLoc( int X, int Y); public void setX( int X ); public void setY( int Y ); public void setSpeed( int S ); public void moveUp(); public void moveDown(); public void moveLeft(); public void moveRight(); public int getX(); public int getY(); public int getSpeed(); public Image getImage(); public void act(); public boolean isActive(); public void setActive(boolean x); } Game.java (Toggle Plain Text) import javax.swing.; import java.awt.; import java.awt.event.; public class Game { private SpaceCanvas canvas; public Game() { canvas = new SpaceCanvas(); } public static void main(String[] args) { Game TheGame = new Game(); } } import javax.swing.; import java.awt.; import java.awt.event.; public class Game { private SpaceCanvas canvas; public Game() { canvas = new SpaceCanvas(); } public static void main(String[] args) { Game TheGame = new Game(); } } Ship.java (Toggle Plain Text) package SIShip; import java.awt.; import IAmmo.Ammo; import ICraft.Craft; public class Ship implements Craft { private int myX; private int myY; private int mySpeed; private int health; private Image myImage; public Ammo [] myAmmo = new Ammo[5]; private boolean active; public Ship() { myX = 0; myY = 0; mySpeed = 10; myImage = Toolkit.getDefaultToolkit().getImage("ship.jpg"); initializeAmmo(); health = 50; active = true; } public Ship(int initX, int initY) { myX = initX; myY = initY; mySpeed = 10; myImage = Toolkit.getDefaultToolkit().getImage("ship.jpg"); initializeAmmo(); health = 50; active = true; } public Ship(int initX, int initY, int iSpeed) { myX = initX; myY = initY; iSpeed = mySpeed; myImage = Toolkit.getDefaultToolkit().getImage("ship.jpg"); initializeAmmo(); health = 50; active = true; } public void setLoc( int X, int Y) { myX = X; myY = Y; } public void setX( int X ) { myX = X; } public void initializeAmmo() { for(int i = 0; i<myAmmo.length; i++) { myAmmo[i] = new Ammo(); } } public void setY( int Y ) { myY = Y; } public void setSpeed( int S ) { mySpeed = S; } public void moveUp() { if(myY>240) myY-=10; } public void moveDown() { if(myY<420) myY+=10; } public void moveLeft() { myX-=10; if(myX<20) { myX=580; } } public void moveRight() { myX+=10; if(myX>600) { myX = 20; } } public int getX() { return myX; } public int getY() { return myY; } public int getSpeed() { return mySpeed; } public String toString() { return getX() + " " + getY(); } public Image getImage() { return myImage; } public Ammo shoot() { System.out.println("h"); for(int j = 0; j<myAmmo.length; j++) { if(!myAmmo[j].isActive()) { myAmmo[j].setLoc(this.getX(), this.getY()); myAmmo[j].setShot(true); return myAmmo[j]; } } return null; } public void act(){} public boolean isActive() { return active; } public void setActive(boolean x) { active = false; } public int getHealth() { return health; } public void isHit() { health -= 5; } } package SIShip; import java.awt.; import IAmmo.Ammo; import ICraft.Craft; public class Ship implements Craft { private int myX; private int myY; private int mySpeed; private int health; private Image myImage; public Ammo [] myAmmo = new Ammo[5]; private boolean active; public Ship() { myX = 0; myY = 0; mySpeed = 10; myImage = Toolkit.getDefaultToolkit().getImage("ship.jpg"); initializeAmmo(); health = 50; active = true; } public Ship(int initX, int initY) { myX = initX; myY = initY; mySpeed = 10; myImage = Toolkit.getDefaultToolkit().getImage("ship.jpg"); initializeAmmo(); health = 50; active = true; } public Ship(int initX, int initY, int iSpeed) { myX = initX; myY = initY; iSpeed = mySpeed; myImage = Toolkit.getDefaultToolkit().getImage("ship.jpg"); initializeAmmo(); health = 50; active = true; } public void setLoc( int X, int Y) { myX = X; myY = Y; } public void setX( int X ) { myX = X; } public void initializeAmmo() { for(int i = 0; i<myAmmo.length; i++) { myAmmo[i] = new Ammo(); } } public void setY( int Y ) { myY = Y; } public void setSpeed( int S ) { mySpeed = S; } public void moveUp() { if(myY>240) myY-=10; } public void moveDown() { if(myY<420) myY+=10; } public void moveLeft() { myX-=10; if(myX<20) { myX=580; } } public void moveRight() { myX+=10; if(myX>600) { myX = 20; } } public int getX() { return myX; } public int getY() { return myY; } public int getSpeed() { return mySpeed; } public String toString() { return getX() + " " + getY(); } public Image getImage() { return myImage; } public Ammo shoot() { System.out.println("h"); for(int j = 0; j<myAmmo.length; j++) { if(!myAmmo[j].isActive()) { myAmmo[j].setLoc(this.getX(), this.getY()); myAmmo[j].setShot(true); return myAmmo[j]; } } return null; } public void act(){} public boolean isActive() { return active; } public void setActive(boolean x) { active = false; } public int getHealth() { return health; } public void isHit() { health -= 5; } } SpaceCanvas.java: (Toggle Plain Text) import IAmmo.Ammo; import java.awt.; import java.awt.event.; import java.util.ArrayList; import javax.swing.; import java.io.; import SIShip.Ship; import ICraft.Craft; import java.awt.image.; import SIAlien.Alien; public class SpaceCanvas extends JFrame implements KeyListener { boolean draw; private int X; //this var stores the values read in for X private int Y; //this var stores the values read in for Y private ArrayList <Craft> onScreen; private ArrayList <Alien> aliens; private ArrayList <Ammo> ammo; private Ship myShip; BufferedImage grid; private String myImageName; private Image myImage; private Image background = Toolkit.getDefaultToolkit().getImage("background.jpg"); private Image alien = Toolkit.getDefaultToolkit().getImage("alien.jpg"); private Alien myAlien[][] = new Alien[3][6]; private boolean alien2; private boolean breaker = false; private int level; private boolean Keys[] = new boolean[5]; public SpaceCanvas () //this method sets up the screen so that you can draw on it { alien2 = false; setSize( 640, 480 ); //this sets the size of the window setBackground(Color.white); //This sets the color of the window //this makes sure the window appears on the screen level = 1; X = 320; Y = 420; aliens = new ArrayList(); for(int r=0; r<3;r++) { for(int c = 0; c<6; c++) { myAlien[r][c] = new Alien((c100+80), (r60+20)); myAlien[r][c].myAmmo.setImage("ammo2.jpg"); aliens.add(myAlien[r][c]); } } myShip = new Ship(X,Y, 10); onScreen = new ArrayList(); ammo = new ArrayList(); //if you wanted to add in timing for something Timer timer; final int FREQ = 30; //the larger the # slows down anim timer = new Timer(FREQ, new ActionListener() { public void actionPerformed(ActionEvent evt) { repaint(); } }); timer.start(); addKeyListener(this); //starts the key thread running show(); } public void paint( Graphics window ) { Graphics2D g2 = (Graphics2D)window; int w = this.getWidth(); int h = this.getHeight(); grid = (BufferedImage)(this.createImage(w,h)); Graphics gc = grid.createGraphics(); if(myShip.isActive()) { if ( Keys[0] == true ) { myShip.moveLeft(); } if ( Keys[1] == true ) { myShip.moveRight(); } if ( Keys[2] == true ) { myShip.moveUp(); } if ( Keys[3] == true ) { myShip.moveDown(); } gc.drawImage(background, 0, 0, 640, 480, this); if(draw) { for(int l = 0; l<aliens.size(); l++) { Ammo thisAmmo = null; aliens.get(l).act(1); double randomNum = Math.random()aliens.get(l).getShotFactor(); if(randomNum <1 && !aliens.get(l).myAmmo.isActive()) { thisAmmo = aliens.get(l).shoot(); } if(thisAmmo!=null) { ammo.add(thisAmmo); } } draw = false; } else { draw = true; } for(int j = 0; j<ammo.size(); j++) { if(((ammo.get(j).getX() <= (myShip.getX() + 40)) && ammo.get(j).getX()+20 >= (myShip.getX())) && ((ammo.get(j).getY() >= (myShip.getY() - 40)) && ammo.get(j).getY() <= (myShip.getY()))) { ammo.get(j).setActive(false); ammo.remove(j); myShip.isHit(); System.out.println(myShip.getHealth()); if(myShip.getHealth()<=0) { myShip.setActive(false); } } } gc.setColor(Color.red); double bufferedHealth = (double)myShip.getHealth()/50; int currentHealth = (int)(bufferedHealth480); gc.fillRect(0, 480-currentHealth, 20, currentHealth); for(int l = 0; l<ammo.size(); l++) { if(level == 1) ammo.get(l).actAlien(); if(level == 2 \|\| level == 3) ammo.get(l).smartShot(myShip.getX(), myShip.getY()); gc.drawImage(ammo.get(l).getImage(), ammo.get(l).getX(), ammo.get(l).getY(), 30, 30, this); if(ammo.get(l).isActive()==false) { ammo.remove(l); } } for(int l = 0; l<aliens.size(); l++) { if(aliens.get(l).getHealth()<=0) { aliens.get(l).setActive(false); aliens.remove(l); } if(aliens.get(l).isActive()) { gc.drawImage(aliens.get(l).getImage(), aliens.get(l).getX(), aliens.get(l).getY(), 50, 50, this); } } if(win()) { if(level<3) { level++; if(level == 2) { Alien2 [] alien2 = new Alien2[3]; for(int start = 0; start <3; start++) { alien2[start] = new Alien2(start200+20, 30); aliens.add(alien2[start]); } } if(level==3) { BigBoss boss = new BigBoss(20, 30); aliens.add(boss); } } } gc.drawImage(myShip.getImage(), myShip.getX(), myShip.getY(), 50, 60, this); for(int j = 0; j<onScreen.size(); j++) { onScreen.get(j).act(); if(onScreen.get(j).isActive()) { for(int l = 0; l<aliens.size(); l++) { if(j>=onScreen.size() \|\| l>=aliens.size()){ System.out.println("break"); breaker = true; break; } if(((onScreen.get(j).getX() <= (aliens.get(l).getX() + 40)) && onScreen.get(j).getX() >= (aliens.get(l).getX())) && ((onScreen.get(j).getY() <= (aliens.get(l).getY() + 40)) && onScreen.get(j).getY() >= (aliens.get(l).getY()))) { aliens.get(l).isHit(); onScreen.get(j).setActive(false); onScreen.remove(j); } System.out.println(j + " " + onScreen.size()); } } if(breaker) { breaker = false; break; } if(onScreen.get(j)!=null) gc.drawImage(onScreen.get(j).getImage(), onScreen.get(j).getX(), onScreen.get(j).getY(), 25, 25, this); if(!onScreen.get(j).isActive()) { onScreen.remove(j); } } g2.drawImage(grid, null, 0, 0); } else { gc.setColor(Color.red); gc.drawString("you lose", 320, 240); } } public void keyPressed(KeyEvent e) { if (e.getKeyCode() == KeyEvent.VK_LEFT) { Keys[0] = true; } if (e.getKeyCode() == KeyEvent.VK_RIGHT) { Keys[1] = true; } if (e.getKeyCode() == KeyEvent.VK_UP) { Keys[2] = true; } if (e.getKeyCode() == KeyEvent.VK_DOWN) { Keys[3] = true; } if(e.getKeyCode() == KeyEvent.VK_SPACE) { Keys[4] = true; } } public void keyReleased(KeyEvent e) { if(Keys[4] == true) { Ammo temp = myShip.shoot(); if(temp != null) { onScreen.add(temp); } } if (e.getKeyCode() == KeyEvent.VK_LEFT) { Keys[0] = false; } if (e.getKeyCode() == KeyEvent.VK_RIGHT) { Keys[1] = false; } if (e.getKeyCode() == KeyEvent.VK_UP) { Keys[2] = false; } if (e.getKeyCode() == KeyEvent.VK_DOWN) { Keys[3] = false; } if(e.getKeyCode() == KeyEvent.VK_SPACE) Keys[4] = false; } public void keyTyped(KeyEvent e) { } public static void main( String args[] ) { //SpaceCanvas test = new SpaceCanvas (); } public boolean win() { if(aliens.size()==0) { return true; } return false; } } import IAmmo.Ammo; import java.awt.; import java.awt.event.; import java.util.ArrayList; import javax.swing.; import java.io.; import SIShip.Ship; import ICraft.Craft; import java.awt.image.; import SIAlien.Alien; public class SpaceCanvas extends JFrame implements KeyListener { boolean draw; private int X; //this var stores the values read in for X private int Y; //this var stores the values read in for Y private ArrayList <Craft> onScreen; private ArrayList <Alien> aliens; private ArrayList <Ammo> ammo; private Ship myShip; BufferedImage grid; private String myImageName; private Image myImage; private Image background = Toolkit.getDefaultToolkit().getImage("background.jpg"); private Image alien = Toolkit.getDefaultToolkit().getImage("alien.jpg"); private Alien myAlien[][] = new Alien[3][6]; private boolean alien2; private boolean breaker = false; private int level; private boolean Keys[] = new boolean[5]; public SpaceCanvas () //this method sets up the screen so that you can draw on it { alien2 = false; setSize( 640, 480 ); //this sets the size of the window setBackground(Color.white); //This sets the color of the window //this makes sure the window appears on the screen level = 1; X = 320; Y = 420; aliens = new ArrayList(); for(int r=0; r<3;r++) { for(int c = 0; c<6; c++) { myAlien[r][c] = new Alien((c100+80), (r60+20)); myAlien[r][c].myAmmo.setImage("ammo2.jpg"); aliens.add(myAlien[r][c]); } } myShip = new Ship(X,Y, 10); onScreen = new ArrayList(); ammo = new ArrayList(); //if you wanted to add in timing for something Timer timer; final int FREQ = 30; //the larger the # slows down anim timer = new Timer(FREQ, new ActionListener() { public void actionPerformed(ActionEvent evt) { repaint(); } }); timer.start(); addKeyListener(this); //starts the key thread running show(); } public void paint( Graphics window ) { Graphics2D g2 = (Graphics2D)window; int w = this.getWidth(); int h = this.getHeight(); grid = (BufferedImage)(this.createImage(w,h)); Graphics gc = grid.createGraphics(); if(myShip.isActive()) { if ( Keys[0] == true ) { myShip.moveLeft(); } if ( Keys[1] == true ) { myShip.moveRight(); } if ( Keys[2] == true ) { myShip.moveUp(); } if ( Keys[3] == true ) { myShip.moveDown(); } gc.drawImage(background, 0, 0, 640, 480, this); if(draw) { for(int l = 0; l<aliens.size(); l++) { Ammo thisAmmo = null; aliens.get(l).act(1); double randomNum = Math.random()aliens.get(l).getShotFactor(); if(randomNum <1 && !aliens.get(l).myAmmo.isActive()) { thisAmmo = aliens.get(l).shoot(); } if(thisAmmo!=null) { ammo.add(thisAmmo); } } draw = false; } else { draw = true; } for(int j = 0; j<ammo.size(); j++) { if(((ammo.get(j).getX() <= (myShip.getX() + 40)) && ammo.get(j).getX()+20 >= (myShip.getX())) && ((ammo.get(j).getY() >= (myShip.getY() - 40)) && ammo.get(j).getY() <= (myShip.getY()))) { ammo.get(j).setActive(false); ammo.remove(j); myShip.isHit(); System.out.println(myShip.getHealth()); if(myShip.getHealth()<=0) { myShip.setActive(false); } } } gc.setColor(Color.red); double bufferedHealth = (double)myShip.getHealth()/50; int currentHealth = (int)(bufferedHealth480); gc.fillRect(0, 480-currentHealth, 20, currentHealth); for(int l = 0; l<ammo.size(); l++) { if(level == 1) ammo.get(l).actAlien(); if(level == 2 \|\| level == 3) ammo.get(l).smartShot(myShip.getX(), myShip.getY()); gc.drawImage(ammo.get(l).getImage(), ammo.get(l).getX(), ammo.get(l).getY(), 30, 30, this); if(ammo.get(l).isActive()==false) { ammo.remove(l); } } for(int l = 0; l<aliens.size(); l++) { if(aliens.get(l).getHealth()<=0) { aliens.get(l).setActive(false); aliens.remove(l); } if(aliens.get(l).isActive()) { gc.drawImage(aliens.get(l).getImage(), aliens.get(l).getX(), aliens.get(l).getY(), 50, 50, this); } } if(win()) { if(level<3) { level++; if(level == 2) { Alien2 [] alien2 = new Alien2[3]; for(int start = 0; start <3; start++) { alien2[start] = new Alien2(start200+20, 30); aliens.add(alien2[start]); } } if(level==3) { BigBoss boss = new BigBoss(20, 30); aliens.add(boss); } } } gc.drawImage(myShip.getImage(), myShip.getX(), myShip.getY(), 50, 60, this); for(int j = 0; j<onScreen.size(); j++) { onScreen.get(j).act(); if(onScreen.get(j).isActive()) { for(int l = 0; l<aliens.size(); l++) { if(j>=onScreen.size() \|\| l>=aliens.size()){ System.out.println("break"); breaker = true; break; } if(((onScreen.get(j).getX() <= (aliens.get(l).getX() + 40)) && onScreen.get(j).getX() >= (aliens.get(l).getX())) && ((onScreen.get(j).getY() <= (aliens.get(l).getY() + 40)) && onScreen.get(j).getY() >= (aliens.get(l).getY()))) { aliens.get(l).isHit(); onScreen.get(j).setActive(false); onScreen.remove(j); } System.out.println(j + " " + onScreen.size()); } } if(breaker) { breaker = false; break; } if(onScreen.get(j)!=null) gc.drawImage(onScreen.get(j).getImage(), onScreen.get(j).getX(), onScreen.get(j).getY(), 25, 25, this); if(!onScreen.get(j).isActive()) { onScreen.remove(j); } } g2.drawImage(grid, null, 0, 0); } else { gc.setColor(Color.red); gc.drawString("you lose", 320, 240); } } public void keyPressed(KeyEvent e) { if (e.getKeyCode() == KeyEvent.VK_LEFT) { Keys[0] = true; } if (e.getKeyCode() == KeyEvent.VK_RIGHT) { Keys[1] = true; } if (e.getKeyCode() == KeyEvent.VK_UP) { Keys[2] = true; } if (e.getKeyCode() == KeyEvent.VK_DOWN) { Keys[3] = true; } if(e.getKeyCode() == KeyEvent.VK_SPACE) { Keys[4] = true; } } public void keyReleased(KeyEvent e) { if(Keys[4] == true) { Ammo temp = myShip.shoot(); if(temp != null) { onScreen.add(temp); } } if (e.getKeyCode() == KeyEvent.VK_LEFT) { Keys[0] = false; } if (e.getKeyCode() == KeyEvent.VK_RIGHT) { Keys[1] = false; } if (e.getKeyCode() == KeyEvent.VK_UP) { Keys[2] = false; } if (e.getKeyCode() == KeyEvent.VK_DOWN) { Keys[3] = false; } if(e.getKeyCode() == KeyEvent.VK_SPACE) Keys[4] = false; } public void keyTyped(KeyEvent e) { } public static void main( String args[] ) { //SpaceCanvas test = new SpaceCanvas (); } public boolean win() { if(aliens.size()==0) { return true; } return false; } } Alien.java: (Toggle Plain Text) package SIAlien; import java.awt.; import IAmmo.Ammo; import ICraft.Craft; import java.lang.Math; public class Alien implements Craft { int moveCount = 0; private int myX; private int myY; private int mySpeed; private int health; private Image myImage; public Ammo myAmmo; private boolean active; private boolean shot = false; private int whereToMove; private int LEFT = 1; private int RIGHT = 2; private int DOWN = 3; private int UP = 4; private int shotFactor; public Alien() { myY = 0; myX = 0; mySpeed = 10; health = 10; myImage = Toolkit.getDefaultToolkit().getImage("Alien.jpg"); myAmmo = new Ammo(); active = true; whereToMove = LEFT; shotFactor = 30; } public Alien(int initX, int initY) { myX = initX; myY = initY; mySpeed = 5; myImage = Toolkit.getDefaultToolkit().getImage("Alien.jpg"); health = 10; myAmmo = new Ammo(); active = true; whereToMove = LEFT; shotFactor = 30; } public Alien(int initX, int initY, int iSpeed) { myX = initX; myY = initY; iSpeed = mySpeed; myImage = Toolkit.getDefaultToolkit().getImage("Alien.jpg"); health = 50; myAmmo = new Ammo(); active = true; whereToMove = LEFT; startMoving(); shotFactor = 30; } public void setLoc( int X, int Y) { myX = X; myY = Y; } public void setX( int X ) { myX = X; } public void setY( int Y ) { myY = Y; } public void setSpeed( int S ) { mySpeed = S; } public void moveUp() { myY-=10;//0; } public void moveDown() { myY+=10;//0; } public void moveLeft() { myX-=10;//0; } public void moveRight() { myX+=10;//0; } public int getX() { return myX; } public int getY() { return myY; } public int getSpeed() { return mySpeed; } public String toString() { return getX() + " " + getY(); } public Image getImage() { return myImage; } public void move() { for(int i = 0; i<4; i++) { moveDown(); } for(int i = 0; i<4; i++) { //movet(); } for(int i = 0; i<4; i++) { moveLeft(); } for(int i = 0; i<4; i++) { moveLeft(); } } public void act(){} public void act(int x) { if(moveCount == 20) { moveCount = 0; } if(moveCount< 5) { moveLeft(); moveCount++; } if(moveCount <10&& moveCount >=5) { moveDown(); moveCount++; } if(moveCount <15&& moveCount >=10) { moveRight(); moveCount++; } if(moveCount <20&& moveCount >=15) { moveUp(); moveCount++; } } public boolean isActive() { return active; } public void isHit() { health -= 5; } public int getHealth() { return health; } public void setActive(boolean x) { active = x; } public void startMoving() { if(whereToMove == LEFT) { for(int i = 0; i<40; i++) { moveLeft(); // SpaceCanvas.repaint(); } whereToMove = DOWN; } else if(whereToMove == DOWN) { for(int i = 0; i<40; i++) { moveDown(); //SpaceCrepaint(); } whereToMove = RIGHT; } else if(whereToMove == RIGHT) { for(int i = 0; i<40; i++) { moveRight(); // repaint(); } whereToMove = UP; } else if(whereToMove == UP) { for(int i = 0; i<40; i++) { moveUp(); // repaint(); } whereToMove = LEFT; } } public Ammo shoot() { myAmmo.setLoc(this.getX(), this.getY()); myAmmo.setShot(true); return myAmmo; } public void setHealth(int x) { health = x; } public int getShotFactor() { return shotFactor; } public void setShotFactor(int newShotFactor) { shotFactor = newShotFactor; } public void setImage(String imageName) { myImage = Toolkit.getDefaultToolkit().getImage(imageName); } } package SIAlien; import java.awt.; import IAmmo.Ammo; import ICraft.Craft; import java.lang.Math; public class Alien implements Craft { int moveCount = 0; private int myX; private int myY; private int mySpeed; private int health; private Image myImage; public Ammo myAmmo; private boolean active; private boolean shot = false; private int whereToMove; private int LEFT = 1; private int RIGHT = 2; private int DOWN = 3; private int UP = 4; private int shotFactor; public Alien() { myY = 0; myX = 0; mySpeed = 10; health = 10; myImage = Toolkit.getDefaultToolkit().getImage("Alien.jpg"); myAmmo = new Ammo(); active = true; whereToMove = LEFT; shotFactor = 30; } public Alien(int initX, int initY) { myX = initX; myY = initY; mySpeed = 5; myImage = Toolkit.getDefaultToolkit().getImage("Alien.jpg"); health = 10; myAmmo = new Ammo(); active = true; whereToMove = LEFT; shotFactor = 30; } public Alien(int initX, int initY, int iSpeed) { myX = initX; myY = initY; iSpeed = mySpeed; myImage = Toolkit.getDefaultToolkit().getImage("Alien.jpg"); health = 50; myAmmo = new Ammo(); active = true; whereToMove = LEFT; startMoving(); shotFactor = 30; } public void setLoc( int X, int Y) { myX = X; myY = Y; } public void setX( int X ) { myX = X; } public void setY( int Y ) { myY = Y; } public void setSpeed( int S ) { mySpeed = S; } public void moveUp() { myY-=10;//0; } public void moveDown() { myY+=10;//0; } public void moveLeft() { myX-=10;//0; } public void moveRight() { myX+=10;//0; } public int getX() { return myX; } public int getY() { return myY; } public int getSpeed() { return mySpeed; } public String toString() { return getX() + " " + getY(); } public Image getImage() { return myImage; } public void move() { for(int i = 0; i<4; i++) { moveDown(); } for(int i = 0; i<4; i++) { //movet(); } for(int i = 0; i<4; i++) { moveLeft(); } for(int i = 0; i<4; i++) { moveLeft(); } } public void act(){} public void act(int x) { if(moveCount == 20) { moveCount = 0; } if(moveCount< 5) { moveLeft(); moveCount++; } if(moveCount <10&& moveCount >=5) { moveDown(); moveCount++; } if(moveCount <15&& moveCount >=10) { moveRight(); moveCount++; } if(moveCount <20&& moveCount >=15) { moveUp(); moveCount++; } } public boolean isActive() { return active; } public void isHit() { health -= 5; } public int getHealth() { return health; } public void setActive(boolean x) { active = x; } public void startMoving() { if(whereToMove == LEFT) { for(int i = 0; i<40; i++) { moveLeft(); // SpaceCanvas.repaint(); } whereToMove = DOWN; } else if(whereToMove == DOWN) { for(int i = 0; i<40; i++) { moveDown(); //SpaceCrepaint(); } whereToMove = RIGHT; } else if(whereToMove == RIGHT) { for(int i = 0; i<40; i++) { moveRight(); // repaint(); } whereToMove = UP; } else if(whereToMove == UP) { for(int i = 0; i<40; i++) { moveUp(); // repaint(); } whereToMove = LEFT; } } public Ammo shoot() { myAmmo.setLoc(this.getX(), this.getY()); myAmmo.setShot(true); return myAmmo; } public void setHealth(int x) { health = x; } public int getShotFactor() { return shotFactor; } public void setShotFactor(int newShotFactor) { shotFactor = newShotFactor; } public void setImage(String imageName) { myImage = Toolkit.getDefaultToolkit().getImage(imageName); } } Alien2.java: (Toggle Plain Text) import java.awt.; import IAmmo.Ammo; import ICraft.Craft; import java.lang.Math; import SIAlien.Alien; public class Alien2 extends Alien { private int direction; private int FORWARD = 1; private int BACKWARD = 2; private int moveCount=1; Ammo [] shots = new Ammo[6]; public Alien2() { super(); setHealth(50); direction = FORWARD; setShotFactor(8); for(int i = 0; i<shots.length; i++) { shots[i] = new Ammo(); shots[i].setImage("ammo2.jpg"); } } public Alien2(int initX, int initY) { super(initX, initY); setHealth(50); direction = FORWARD; setShotFactor(8); for(int i = 0; i<shots.length; i++) { shots[i] = new Ammo(); shots[i].setImage("ammo2.jpg"); } } public Alien2(int initX, int initY, int iSpeed) { super(initX, initY, iSpeed); setHealth(50); direction = FORWARD; setShotFactor(8); for(int i = 0; i<shots.length; i++) { shots[i] = new Ammo(); shots[i].setImage("ammo2.jpg"); } } public void act(int x) { if(direction == FORWARD) { if(moveCount<=10) { setX(getX()+4); setY(getY()+10); moveCount++; } else if(moveCount > 10 && moveCount <= 20) { setX(getX()+4); setY(getY()-10); moveCount++; } else if(moveCount > 20 && moveCount <=30) { setX(getX()+4); setY(getY()+10); moveCount++; } else if(moveCount>30 && moveCount <= 40) { setX(getX()+4); setY(getY()-10); moveCount++; } else if(moveCount>40) { moveCount = 39; direction = BACKWARD; } } if(direction == BACKWARD) { if(moveCount>=30) { setX(getX()-4); setY(getY()+10); moveCount--; } else if(moveCount >= 20 && moveCount < 30) { setX(getX()-4); setY(getY()-10); moveCount--; } else if(moveCount >= 10 && moveCount <20) { setX(getX()-4); setY(getY()+10); moveCount--; } else if(moveCount>=0 && moveCount <= 10) { setX(getX()-4); setY(getY()-10); moveCount--; } else if(moveCount<=0) { moveCount = 1; direction = FORWARD; } } } public Ammo shoot() { System.out.println("h"); for(int j = 0; j<shots.length; j++) { if(!shots[j].isActive()) { shots[j].setLoc(this.getX(), this.getY()); shots[j].setShot(true); return shots[j]; } } return null; } } import java.awt.; import IAmmo.Ammo; import ICraft.Craft; import java.lang.Math; import SIAlien.Alien; public class Alien2 extends Alien { private int direction; private int FORWARD = 1; private int BACKWARD = 2; private int moveCount=1; Ammo [] shots = new Ammo[6]; public Alien2() { super(); setHealth(50); direction = FORWARD; setShotFactor(8); for(int i = 0; i<shots.length; i++) { shots[i] = new Ammo(); shots[i].setImage("ammo2.jpg"); } } public Alien2(int initX, int initY) { super(initX, initY); setHealth(50); direction = FORWARD; setShotFactor(8); for(int i = 0; i<shots.length; i++) { shots[i] = new Ammo(); shots[i].setImage("ammo2.jpg"); } } public Alien2(int initX, int initY, int iSpeed) { super(initX, initY, iSpeed); setHealth(50); direction = FORWARD; setShotFactor(8); for(int i = 0; i<shots.length; i++) { shots[i] = new Ammo(); shots[i].setImage("ammo2.jpg"); } } public void act(int x) { if(direction == FORWARD) { if(moveCount<=10) { setX(getX()+4); setY(getY()+10); moveCount++; } else if(moveCount > 10 && moveCount <= 20) { setX(getX()+4); setY(getY()-10); moveCount++; } else if(moveCount > 20 && moveCount <=30) { setX(getX()+4); setY(getY()+10); moveCount++; } else if(moveCount>30 && moveCount <= 40) { setX(getX()+4); setY(getY()-10); moveCount++; } else if(moveCount>40) { moveCount = 39; direction = BACKWARD; } } if(direction == BACKWARD) { if(moveCount>=30) { setX(getX()-4); setY(getY()+10); moveCount--; } else if(moveCount >= 20 && moveCount < 30) { setX(getX()-4); setY(getY()-10); moveCount--; } else if(moveCount >= 10 && moveCount <20) { setX(getX()-4); setY(getY()+10); moveCount--; } else if(moveCount>=0 && moveCount <= 10) { setX(getX()-4); setY(getY()-10); moveCount--; } else if(moveCount<=0) { moveCount = 1; direction = FORWARD; } } } public Ammo shoot() { System.out.println("h"); for(int j = 0; j<shots.length; j++) { if(!shots[j].isActive()) { shots[j].setLoc(this.getX(), this.getY()); shots[j].setShot(true); return shots[j]; } } return null; } } BigBoss.java: (Toggle Plain Text) import java.awt.; import IAmmo.Ammo; import ICraft.Craft; import java.lang.Math; import SIAlien.Alien; public class BigBoss extends Alien2 { Ammo [] shots = new Ammo[15]; int direction; int FORWARD = 1; int BACKWARD = 0; public BigBoss() { super(); setHealth(255); direction = FORWARD; setShotFactor(4); for(int i = 0; i<shots.length; i++) { shots[i] = new Ammo(); shots[i].setImage("ammo2.jpg"); } } public BigBoss(int initx, int inity) { super(initx, inity); setHealth(255); direction = FORWARD; setShotFactor(4); for(int i = 0; i<shots.length; i++) { shots[i] = new Ammo(); shots[i].setImage("ammo2.jpg"); } } public BigBoss(int initx, int inity, int ispeed) { super(initx, inity, ispeed); setHealth(255); direction = FORWARD; setShotFactor(4); for(int i = 0; i<shots.length; i++) { shots[i] = new Ammo(); shots[i].setImage("ammo2.jpg"); } } public void act(int x) { if(direction==FORWARD) { setX(getX()+10); if(getX() == 600) { direction = BACKWARD; } } if(direction == BACKWARD) { setX(getX()-10); if(getX()==20) { direction = FORWARD; } } } public Ammo shoot() { System.out.println("h"); for(int j = 0; j<shots.length; j++) { if(!shots[j].isActive()) { shots[j].setLoc(this.getX(), this.getY()); shots[j].setShot(true); return shots[j]; } } return null; } } import java.awt.; import IAmmo.Ammo; import ICraft.Craft; import java.lang.Math; import SIAlien.Alien; public class BigBoss extends Alien2 { Ammo [] shots = new Ammo[15]; int direction; int FORWARD = 1; int BACKWARD = 0; public BigBoss() { super(); setHealth(255); direction = FORWARD; setShotFactor(4); for(int i = 0; i<shots.length; i++) { shots[i] = new Ammo(); shots[i].setImage("ammo2.jpg"); } } public BigBoss(int initx, int inity) { super(initx, inity); setHealth(255); direction = FORWARD; setShotFactor(4); for(int i = 0; i<shots.length; i++) { shots[i] = new Ammo(); shots[i].setImage("ammo2.jpg"); } } public BigBoss(int initx, int inity, int ispeed) { super(initx, inity, ispeed); setHealth(255); direction = FORWARD; setShotFactor(4); for(int i = 0; i<shots.length; i++) { shots[i] = new Ammo(); shots[i].setImage("ammo2.jpg"); } } public void act(int x) { if(direction==FORWARD) { setX(getX()+10); if(getX() == 600) { direction = BACKWARD; } } if(direction == BACKWARD) { setX(getX()-10); if(getX()==20) { direction = FORWARD; } } } public Ammo shoot() { System.out.println("h"); for(int j = 0; j<shots.length; j++) { if(!shots[j].isActive()) { shots[j].setLoc(this.getX(), this.getY()); shots[j].setShot(true); return shots[j]; } } return null; } } What would you guys reccomend for me to improve this? I'll go through and clean up the code a little bit, but later. __________________ "Every gun that is made, every warship launched, every rocket signifies, in the final sense, a theft from those who hunger and are not fed, from those who are cold and are not clothed. The world in arms is not spending money alone. It is spending the sweat of its laborers, the genius of its scientists, the hopes of its children." - Dwight D. Eisenhower

Oct 29th, 2004, 7:07 PM	#2
big_k105 PFO Founder Join Date: Mar 2004 Location: Fargo, ND Posts: 1,667 Rep Power: 10	how would i go about compiling so i can run this? thanks __________________ BIG K aka Kyle Programming Forums Kyle K Online Please do not PM or email me programming questions. Post them in the forums instead.

Oct 29th, 2004, 10:03 PM	#3
Mjordan2nd The Supreme Ruler Join Date: May 2004 Location: Houston Posts: 1,476 Rep Power: 6	You'll need jdk 1.4.2 at least. I'm not sure how it works for Linux. This was all done on a windows machine, Big_k, so I can't help there. Sorry. I guess the first think to compile would be the Craft class, then the Ammo class, then Ship, then Alien, Alien2, BigBoss, SpaceCanvas, then Game. After that, run Game. That should work. __________________ "Every gun that is made, every warship launched, every rocket signifies, in the final sense, a theft from those who hunger and are not fed, from those who are cold and are not clothed. The world in arms is not spending money alone. It is spending the sweat of its laborers, the genius of its scientists, the hopes of its children." - Dwight D. Eisenhower

Oct 31st, 2004, 11:20 PM	#5
zeta Newbie Join Date: Oct 2004 Posts: 7 Rep Power: 0	how do run this thanks? What do you mean by compiling btw...(sorry i m kinda newb at this) __________________ <span style='color:blue'>Html : 1 year experience</span> <span style='color:red'>XML: newbie</span> <span style='color:purple'>CSS:newbie</span> <span style='color:orange'>Java: beginner</span> <span style='color:green'>PS: beginner</span> A website that I made home.cogeco.ca/~sngyen/chemistryweb.htm

Nov 1st, 2004, 11:55 AM	#6
Ooble I eat cake for breakfast. Join Date: Jul 2004 Location: In my box. Posts: 4,434 Rep Power: 9	BTW MJ, it'll probably be the images that slow the game down - Windows isn't very fast with that sort of thing. This can't be said enough - if you want to make games, use C++. __________________ Me :: You :: Them

Nov 1st, 2004, 3:53 PM	#7
Mjordan2nd The Supreme Ruler Join Date: May 2004 Location: Houston Posts: 1,476 Rep Power: 6	I figured it was the images, but just wanted to make sure. Unfortunately, our teacher is forcing us to use Java, so C/C++ isn't an option. __________________ "Every gun that is made, every warship launched, every rocket signifies, in the final sense, a theft from those who hunger and are not fed, from those who are cold and are not clothed. The world in arms is not spending money alone. It is spending the sweat of its laborers, the genius of its scientists, the hopes of its children." - Dwight D. Eisenhower

Nov 2nd, 2004, 12:29 PM	#8
Ooble I eat cake for breakfast. Join Date: Jul 2004 Location: In my box. Posts: 4,434 Rep Power: 9	Using Java to make a game??? Kinda retarded if you ask me - the language simply isn't geared that way. __________________ Me :: You :: Them

Nov 2nd, 2004, 12:32 PM	#9
Mjordan2nd The Supreme Ruler Join Date: May 2004 Location: Houston Posts: 1,476 Rep Power: 6	Tell our teacher that. He seems to think that Java is god. He also seems to think that Linux is the devil, so he's questionable, but he does know what he's doing. Smart man, even though my opinions clash with his. I'm sure he knows what he's doing. __________________ "Every gun that is made, every warship launched, every rocket signifies, in the final sense, a theft from those who hunger and are not fed, from those who are cold and are not clothed. The world in arms is not spending money alone. It is spending the sweat of its laborers, the genius of its scientists, the hopes of its children." - Dwight D. Eisenhower

Nov 4th, 2004, 4:13 PM	#10
Mjordan2nd The Supreme Ruler Join Date: May 2004 Location: Houston Posts: 1,476 Rep Power: 6	You need at least 1.5.0 to compile, just in case anyone was wondering, or having trouble. __________________ "Every gun that is made, every warship launched, every rocket signifies, in the final sense, a theft from those who hunger and are not fed, from those who are cold and are not clothed. The world in arms is not spending money alone. It is spending the sweat of its laborers, the genius of its scientists, the hopes of its children." - Dwight D. Eisenhower

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Almost Complete 2d Space Game Project