[Source] Space Warrior

Solixious · 07-29-2013, 08:16 AM

I made this game of Space Warrior in java recently and would like to share with you guys.. Please do provide feedback on it.
Screenshot :
[Image: screen.jpg]

Source :
SpaceWarrior.java

Code:
/*Made by : Solixious Klein*/
import javax.swing.*;
import javax.swing.Timer;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
public class SpaceWarrior extends JPanel implements ActionListener
{
	private static final long serialVersionUID = -1995860998543589555L;
	private JFrame fr;
	private Image spaceCraft,missile;
	private SpaceCraft sc;
	private Timer timer;
	private ArrayList<Boulder> boulders;
	private ArrayList<Shine> shines;
	private int boulderRate=150;
	private int ctr=0,score=0,highScore=0;
	private boolean gameOver;
	private int bouldersDestroyed,bouldersPopulation;
	private boolean paused,startScreen;
	public SpaceWarrior()
	{
		startScreen=true;
		paused=false;
		bouldersDestroyed=0;
		bouldersPopulation=0;
		highScore=10000;
		gameOver=false;
		boulders=new ArrayList<Boulder>();
		shines=new ArrayList<Shine>();
		sc=new SpaceCraft();
		spaceCraft=sc.getImage();
		missile=new Missile(sc).getImage();
		fr=new JFrame("Space Warrior");
		fr.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		addKeyListener(new TAdapter());
		fr.add(this);
		fr.setSize(500,500);
		fr.setResizable(false);
		fr.setLocationRelativeTo(null);
		fr.setVisible(true);
		setFocusable(true);
		setDoubleBuffered(true);
		timer=new Timer(9,this);
		
	}
	public static void main(String[] args)
	{
		SwingUtilities.invokeLater(new Runnable() {
		    public void run() {
		        new SpaceWarrior();
		    }
		});
	}
	@Override
	public void paint(Graphics g)
	{
		super.paint(g);
		Graphics2D g2d=(Graphics2D)g;
		g2d.setColor(Color.black);
		g2d.fillRect(0, 0, 500, 500);
		ArrayList<Missile> missiles=sc.getMissiles();
		int size=shines.size();
		for(int i=0;i<shines.size();i++) //draw the shining stars
		{
			Shine s=shines.get(i);
			g2d.drawImage(s.getImage(), s.getXPos(), s.getYPos(), this);
		}
		size=missiles.size();
		for(int i=0;i<size;i++) //draw the missiles fired on screen
		{
			Missile m=missiles.get(i);
			g2d.drawImage(missile, m.getXPos(), m.getYPos(), this);
			g2d.drawImage(missile, m.getXPos()+20, m.getYPos(), this);
		}
		size=boulders.size();
		for(int i=0;i<size;i++)
		{
			Boulder b=boulders.get(i);
			if(b.isVisible())
			{
				g2d.drawImage(b.getImage(), b.getXPos(), b.getYPos(), this);
			}
		}
		g2d.drawImage(spaceCraft, sc.getXPos(), sc.getYPos(), this);
		g.setColor(Color.white);
		g2d.drawString("Score : "+score, 10, 20);
		g2d.drawString("High Score : "+highScore,350,20);
		if(startScreen)
		{
			g.drawString("Press Enter To Start", 200, 200);
		}
		if(gameOver)
		{
			g.drawString("Game Over", 220, 200);
			g.drawString("Hit Enter To Play Again", 190, 230);
			g.drawString("Your Stats :-", 70,300);
			g.drawString("Boulders Encountered : "+ bouldersPopulation,70,330);
			g.drawString("Boulders Destroyed : " + bouldersDestroyed, 70, 360);
		}
		if(paused)
		{
			g.drawString("Paused", 220, 200);
		}
		Toolkit.getDefaultToolkit().sync();
        g.dispose();
	}
	@Override
	public void update(Graphics g)
	{
		paint(g);
	}
	@Override
	public void actionPerformed(ActionEvent e)
	{
		if(!gameOver)
		{
			ctr++;
			if(ctr%300==0)
				shines.add(new Shine());
			for(int i=0;i<shines.size();i++)
			{
				Shine s=shines.get(i);
				s.move();
				if(!s.isVisible())
					shines.remove(s);
			}
			ArrayList<Missile> missiles=sc.getMissiles();
			for(int i=0;i<missiles.size() && !missiles.isEmpty();i++)
			{
				Missile m=missiles.get(i);
				if(m.isVisible())
				{
					m.move();
				}
				else
				{
					missiles.remove(m);
				}
			}
			if(ctr%boulderRate==0)
			{
				Boulder b=new Boulder(sc);
				boulders.add(b);
				bouldersPopulation++;
			}
			for(int i=0;i<boulders.size() && !boulders.isEmpty();i++)
			{
				Boulder b=boulders.get(i);
				if(b.isVisible())
				{
					b.move();
				}
				else
				{
					boulders.remove(b); //remove the boulder from list if it is not on screen
				}
				for(int j=0;j<missiles.size();j++)
				{
					Missile m=missiles.get(j);
					if(m.getXPos()-b.getXPos()<=40 && m.getXPos()-b.getXPos()>=-20 && m.getYPos()-b.getYPos()<=20 && m.getYPos()-b.getYPos()>=-20) //check if a missile hit a boulder
					{
						b.hitMissile();//missile hit the boulder, so reduce its health
						missiles.remove(m);
						if(b.getHealth()<=0) //check if the boulder hit is destroyed
						{
							if(b.getHealth()>-5)
							{
								bouldersDestroyed++;
							}
							b.explode();
							score+=b.getScore();
						}
					}
				}
				if(b.getXPos()-sc.getXPos()<=20 && b.getXPos()-sc.getXPos()>=-40 && b.getYPos()-sc.getYPos()<=20 && b.getYPos()-sc.getYPos()>=-20 && b.getHealth()>0) //check for collision of boulders and space craft
				{
					gameOver=true;
				}
			}
			sc.move(); //moves the space craft
			if(score>highScore) //update highScore if necessary
				highScore=score;
			/*updates level of play according to current score*/
			if(score>=500)
				boulderRate=100;
			if(score>=10000)
				boulderRate=75;
			if(score>=25000)
				boulderRate=50;
			if(score>=50000)
				boulderRate=25;
			repaint();
		}
	}
	private class TAdapter extends KeyAdapter {
		@Override
        public void keyPressed(KeyEvent e) {
			if(gameOver && e.getKeyCode()==KeyEvent.VK_ENTER)
        	{
        		gameOver=false;
        		score=0;
        		boulderRate=200;
        		bouldersPopulation=0;
        		bouldersDestroyed=0;
        		boulders=new ArrayList<Boulder>();
        		shines=new ArrayList<Shine>();
        		sc=new SpaceCraft();
        	}
			else if(startScreen && e.getKeyCode()==KeyEvent.VK_ENTER)
        	{
        		startScreen=false;
        		timer.start();
        	}
        	else if(!gameOver && e.getKeyCode()==KeyEvent.VK_P)
        	{
        		if(paused)
        		{
        			paused=false;
        			repaint();
        			timer.restart();
        		}
        		else
        		{
        			paused=true;
        			repaint();
        			timer.stop();
        		}
        	}
        	else
        	{
        		sc.keyPressed(e);
        	}
        }
		@Override
        public void keyReleased(KeyEvent e) {
        	sc.KeyReleased(e);
        }
    }

}

SpaceCraft.java

Code:
import java.awt.*;
import java.awt.event.KeyEvent;
import java.util.ArrayList;

import javax.swing.ImageIcon;
public class SpaceCraft {
	private int xPos,yPos;
	private String imageFile="craft.png";
	private Image image;
	private int dx=0,dy=0;
	private ArrayList<Missile> missiles;
	public SpaceCraft()
	{
		xPos=232;
		yPos=220;
		image=new ImageIcon(this.getClass().getResource(imageFile)).getImage();
		missiles=new ArrayList<Missile>();
	}
	public Image getImage()
	{
		return image;
	}
	public int getXPos()
	{
		return xPos;
	}
	public int getYPos()
	{
		return yPos;
	}
	public void move()
	{
		if(xPos+dx>=0 && xPos+dx<=465)
			xPos=xPos+dx;
		if(yPos+dy>=0 && yPos+dy<=440)
			yPos=yPos+dy;
	}
	public void fire()
	{
		missiles.add(new Missile(this));	
	}
	public ArrayList<Missile> getMissiles()
	{
		return missiles;
	}
	public void keyPressed(KeyEvent e)
	{
		int key=e.getKeyCode();
		if(key==KeyEvent.VK_UP)
			dy=-2;
		if(key==KeyEvent.VK_DOWN)
			dy=2;
		if(key==KeyEvent.VK_RIGHT)
			dx=2;
		if(key==KeyEvent.VK_LEFT)
			dx=-2;
		if(key==KeyEvent.VK_SPACE)
			fire();
	}
	public void KeyReleased(KeyEvent e)
	{
		int key=e.getKeyCode();
		if(key==KeyEvent.VK_UP || key== KeyEvent.VK_DOWN)
			dy=0;
		if(key==KeyEvent.VK_LEFT || key== KeyEvent.VK_RIGHT)
			dx=0;
	}
}

Missile.java

Code:
import java.awt.Image;

import javax.swing.ImageIcon;


public class Missile
{
	private String missile="missile.png";
	private Image image;
	private int SPEED=10;
	private int x,y;
	public Missile(SpaceCraft sc)
	{
		x=sc.getXPos();
		y=sc.getYPos();
		image=new ImageIcon(this.getClass().getResource(missile)).getImage();
	}
	public Image getImage()
	{
		return image;
	}
	public void move()
	{
		y-=SPEED;
	}
	public int getXPos()
	{
		return x;
	}
	public int getYPos()
	{
		return y;
	}
	public boolean isVisible()
	{
		return (y>=0);
	}
	public void setSpeed(int speed)
	{
		SPEED=speed;
	}
}

Shine.java

Code:
import java.awt.Image;

import javax.swing.ImageIcon;


public class Shine
{
	private String[] fileNames={"shine1.png","shine2.png","shine3.png"};
	private Image image;
	private int x,y;
	private int SPEED=1;
	private boolean visible;
	private int ctr=0;
	public Shine()
	{
		SPEED=(int)(Math.random()*4+1);
		x=(int)(Math.random()*440);
		y=0;
		image=new ImageIcon(this.getClass().getResource(fileNames[(int)(Math.random()*3)])).getImage();
		visible=true;
	}
	public void move()
	{
		ctr++;
		if(ctr==10)
		{
			y+=SPEED;
			ctr=0;
		}
		if(y>465)
			visible=false;
	}
	public Image getImage()
	{
		return image;
	}
	public int getXPos()
	{
		return x;
	}
	public int getYPos()
	{
		return y;
	}
	public boolean isVisible()
	{
		return visible;
	}
}

Download Runnable Jar File and Images Here :
SpaceWarrior.rar (new link)
Space Warrior.rar (old link)

[Source] Space Warrior
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