<< StoryTextApplet | FinalProjectsTrailIndex | SimpleGameTutorial >>

Cell.java

import java.awt.Color;
import java.awt.Graphics;
import java.awt.Rectangle;


public class Cell 
{
	private Color color;
	private Rectangle r;
	private boolean hit,selected;
	private String location;
	public final String rows="ABCDEFGHIJ";
	public Cell(int row, int col, int x, int y, int size){
		r = new Rectangle(x,y,size, size);
		setColor(Color.CYAN);
		setLocation(rows.substring(row, row+1)+"-"+(col+1));
	}
	public void draw(Graphics g){
		g.setColor(Color.BLACK);
		if (isSelected())
			g.setColor(Color.MAGENTA);
		g.fillRect(r.x, r.y, r.width, r.height);
		g.setColor(color);
		g.fillRect(r.x+4, r.y+4, r.width-8, r.height-8);
		if (isHit()){
			g.setColor(Color.RED);
			int s=r.width/4;
			g.fillOval(r.x+s, r.y+s, 2*s, 2*s);
		}

	}
	public boolean contains(int x, int y){
		return r.contains(x, y);
	}
	public boolean isHit() {
		return hit;
	}
	public void setHit(boolean hit) {
		this.hit = hit;
	}
	public boolean isSelected() {
		return selected;
	}
	public void setSelected(boolean selected) {
		this.selected = selected;
	}
	public String getLocation() {
		return location;
	}
	public void setLocation(String location) {
		this.location = location;
	}
	public Color getColor(){
		return color;
	}
	public void setColor(Color c){
		color=c;
	}
}

Battleship.java

import java.applet.Applet;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;


public class BattleShip extends Applet implements MouseListener, MouseMotionListener
{
	private Cell[][] board;
	private String message;
	private Image screen2;
	private Graphics g2;

	public void init(){
		addMouseListener(this);
		addMouseMotionListener(this);
		screen2 = createImage(800,600);
		g2 = screen2.getGraphics();
		message="Battleship";
		board = new Cell[10][10];
		for (int r=0; r<10;r++)
			for (int c=0; c<10; c++){
				board[r][c]=new Cell(r,c, 70+c*50, 80+r*50, 50);
		}
	}
	public void paint(Graphics g){
		g2.setColor(Color.WHITE);
		g2.fillRect(0, 0, 800, 600);
		for (int r=0; r<10;r++)
			for (int c=0; c<10; c++){
				board[r][c].draw(g2);
		}
		g2.setColor(Color.BLACK);
		g2.drawString(message, 20, 50);
		g.drawImage(screen2, 0,0,this);

	}
	public void update(Graphics g){
        paint(g); //get rid of flicker with this method
    }

	@Override
	public void mouseClicked(MouseEvent e) {}

	@Override
	public void mousePressed(MouseEvent e) {}

	@Override
	public void mouseReleased(MouseEvent e) {
		int x=e.getX();
		int y=e.getY();
		for (int r=0; r<10;r++)
			for (int c=0; c<10; c++){
				if(board[r][c].contains(x, y)){
					board[r][c].setColor(Color.BLUE);
					//test if a hit
					// if so, board[r][c].setHit(true);
				}
		}
		repaint();
	}

	@Override
	public void mouseEntered(MouseEvent e) {}

	@Override
	public void mouseExited(MouseEvent e) {}

	@Override
	public void mouseDragged(MouseEvent e) {}

	@Override
	public void mouseMoved(MouseEvent e) {
		int x=e.getX();
		int y=e.getY();
		for (int r=0; r<10;r++)
			for (int c=0; c<10; c++){
				if(board[r][c].contains(x, y)){
					board[r][c].setSelected(true);
					message=board[r][c].getLocation();
				}else{
					board[r][c].setSelected(false);
				}
		}
		repaint();
	}

}

Ship.java

public class Ship 
{
	private String[] locs;
	private boolean[] hits;

	public final String rows="ABCDEFGHIJ";
	public Ship(){
		int size = randomInt(2,4);
		locs = new String[size];
		hits = new boolean[size];
		for (int i=0;i<size;i++)
			hits[i]=false;
		int a= randomInt(0, 10-size);
		int b= randomInt(0, 9);

		if(Math.random()<.5){//vertical
			for(int i=0;i<size;i++)
				locs[i]=getLocation(a+1, b);
		} else {//horiz
			for(int i=0;i<size;i++)
				locs[i]=getLocation(b, a+1);
		}
	}
	public String getLocation(int row, int col){
		return rows.substring(row, row+1)+"-"+(col+1);
	}
	public int randomInt(int min, int max){
		min = Math.min(min, max);
		max = Math.max(min, max);
		return min+(int)((max-min)*Math.random());
	}
	public int size(){
		return locs.length;
	}
	public boolean contains(String loc){
		for(int i=0; i<size(); i++)
			if (loc.equals(locs[i]))
				return true;
		return false;
	}
	public boolean overlaps(Ship other){
		for(int i=0; i<size(); i++)
			if (other.contains(locs[i]))
				return true;
		return false;
	}
	public void hit(String loc){
		if (!this.contains(loc))
			return;
		for(int i=0; i<size(); i++)
			if (loc.equals(locs[i]))
				hits[i]=true;
	}
	public boolean isSunk(){
		for (int i=0;i<size(); i++)
			if (hits[i]==false)
				return false;
		return true;
	}
}