battleshipdisplay.java

proxy server for caching and packet filtering final project

//Battleship game

import java.util.*;
import java.lang.*;
import java.awt.*;
import java.awt.event.*;
import java.applet.*;
import java.net.*;
import java.lang.*;
/**
 * Class for the GUI of Battleship.
 */
public class BattleshipDisplay extends java.applet.Applet implements MouseListener{
  //For the GUI
  /**
   * The game that is being displayed
   */
  Battleship bat;
  /**
   * The status to display after the user's guess
   */
  String stat;                      //the status to display after each guess
  /**
   * Variable is set to true when user finishes
   */
  boolean finish;
  /**
   * Initialize the applet. Creates a new Battleship game. 
   */
  public void init(){               //initialize the applet
    bat=new Battleship();
    stat=new String();
    finish=false;
    addMouseListener(this);         //add to respond to mouseClicks
  }
  /**
   * Method to paint on the applet.
   * Displays the user's guess board and the status of computer's ships.
   */
  public void paint(Graphics g){    //Method that paints on screen
    g.setColor(Color.BLACK);
    g.fillRect(0,0,600,320);        //Clear the screen
    if(!finish){ 
      g.setColor(Color.WHITE);
      g.drawString(stat,420,40);    //display status of guess
      int cstat[];                  //obtain status of computer's ships
      cstat=bat.compStat();
      //display ship details and current status (number of hits)
      g.drawString("Patrol Boat",420,140);
      g.drawString(": 2 holes; "+cstat[0]+" hit",500, 140);
      g.drawString("Destroyer",420,160);
      g.drawString(": 3 holes; "+cstat[1]+" hit",500, 160);
      g.drawString("Submarine",420,180);
      g.drawString(": 3 holes; "+cstat[2]+" hit",500, 180);
      g.drawString("Battleship",420,200);
      g.drawString(": 4 holes; "+cstat[3]+" hit",500, 200);
      g.drawString("Carrier",420,220);
      g.drawString(": 5 holes; "+cstat[4]+" hit",500, 220);
      
      g.drawString("# of Guesses = " + bat.numUserGuess(),420, 280);
      //draws the guess board : 10 X 10 square 
      for (int i=0; i<11; i++)
        g.drawLine(20,20+i*28, 300, 20+i*28); 
      for (int i=0; i<11; i++)
        g.drawLine(20+i*28,20,20+i*28,300);
      char ch='0';
      for (int i=0; i<10; i++){                    //marks column coordinates on top
        g.drawString(ch+" ",30+28*i,13);
        ch++;
    }
      ch='0';
      for (int i=0; i<10; i++){                    //marks row coordinates on side
        g.drawString(ch+" ",10,40+28*i);
        ch++;
      }
      
    int sqStat=0;                                  
    for (int r=0; r<10; r++)                       //marks the holes on user's guessboard
      for (int c=0; c<10;c++){
      sqStat=bat.guessStatus(new Location(r,c));
      if (sqStat==2)  {
        g.setColor(Color.RED);                    //a location that was hit
        g.fillOval(c*28+30, r*28+30, 10,10);
      }
      else if (sqStat==3)  {
        g.setColor(Color.WHITE);                  //a location guessed, but not hit
        g.fillOval(c*28+30, r*28+30, 10,10);
      }
    }
    }
    else{                                        //user has finished the game
      g.setColor(Color.WHITE);
      g.drawString("Congrats! You have successfully finished the game", 170,150);
      g.drawString("It took you "+ bat.numUserGuess() +" guesses",190,180);
    }
  }
  /**
   * Responds to mouse clicks. Carries out the user's guess.
   */
  public void mouseClicked(MouseEvent e){      //responds to mouseClicks - user's guess
    Graphics g=getGraphics();
    int r,c,result;
    Location uguess;
    int cy=e.getY();
    int cx=e.getX();
    if(cx>20 && cx<300 && cy>20 && cy<300){    //user clicked on the board
      r=(cy-20)/28;
      c=(cx-20)/28;
      uguess=new Location(r,c);                //convert screen coordinates to location on board
      if(bat.guessStatus(uguess)!=1)
      stat="Already guessed";                  //location has been guessed before
      else{
        result=bat.userGuess(uguess);          //carry out the user's guess : result holds which ship (if any) is hit
        switch(result){
          case 0 : stat="Patrol Boat hit";break;
          case 1 : stat="Destroyer hit";break;
          case 2 : stat="Submarine hit";break;
          case 3 : stat="Battleship  hit";break;
          case 4 : stat="Carrier hit";break;
          case 5 : stat="You missed";break;
        }
      }
      finish=bat.win();                        //if the game is over
      paint(g);                                //redisplay - with the changes
    }
  }
  
  public void mouseReleased(MouseEvent e){
  }
  public void mouseEntered(MouseEvent e){
  }
  public void mouseExited(MouseEvent e){
  }
   public void mousePressed(MouseEvent e){
  }
};