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Creating simple GUI interface for BattleShips

Koert Kopbeen
Greenhorn

Joined: Oct 30, 2005
Posts: 6
Hi everyone,

Like the previous poster, I am also from South Africa, and I haven't done GUI either yet. Difference is that I'm in gr. 11 (which makes my post a bit more urgent, doesn't it?!)

We had to create a BattleShips prog. (which I did and will post here now) which has 5 Ships (consisting of 1 space each), three battleships (each consisting of three spaces) and one aircraft carrier consisting of five spaces. This is on a 2x2 Array (10 spaces horizontally and 10 spaces vertically. We have to display a blank board and the user can type in the column and row that they want to hit. If they hit any of the ships, we have to add to his score (his score starts at 100 and we can decide on a scoring system for ourselves) and it has to show on the board. The same for if he misses, but then we have to deduct from the score.

If you can maybe help me tweak the program (I don't know how to go any further) and help me to create a SIMPLE (it can be REALLY simple) GUI interface, I would really appreciate it.

Thanks for your help. ASAP please it has to be in on the 4th November.

Thanks again! Here follows the class and the driver (I know the code is probably way too long - I could do it shorter, but I prefer to keep it that way!):


import java.io.*;

public class BattleShips
{

private char [] [] board = new char [10] [10];
BufferedReader input = new BufferedReader (new InputStreamReader (System.in));

void blank ()
{


for (int i = 0 ; i < 10 ; i++)
{

for (int j = 0 ; j < 10 ; j++)
{

board [j] = ' ';
}

}


}


void place ()
{

boolean beset = false;

int countS = 0;
int countA = 0;
int countB = 0;

for (int y = 0 ; y < 5 ; y++)
{

while (!beset)
{
int i = (int) (Math.random () * 10);
int j = (int) (Math.random () * 10);

if (board [j] == ' ')
{


board [j] = 'S';
System.out.println (board [j]);

countS++;
beset = true;

}
else
{
countS = countS;
}

}
beset = false;
}

for (int k = 0 ; k < 3 ; k++)
{
while (!beset)
{
int i = (int) (Math.random () * 10);
int j = (int) (Math.random () * 10);
int one2 = (int) (Math.random () * 2);


if (one2 == 0)
{

if ((board [j] == ' ') && (j < 6))
{
if (board [j + 1] == ' ')
{
if (board [j + 2] == ' ')
{
for (int e = j ; e < j + 3 ; e++)
{

board [e] = 'B';
System.out.println (board [e]);
}

// countB++;
beset = true;

}
}
}
}
else
{

if ((board [j] == ' ') && (i < 6))
{
if (board [i + 1] [j] == ' ')
{
if (board [i + 2] [j] == ' ')
{
for (int e = i ; e < i + 3 ; e++)
{

board [e] [j] = 'B';
System.out.println (board [e] [j]);
}

// countB++;
beset = true;

}
}
}



}
// else
// {
// countB = countB;
// }

}
beset = false;
}

while (!beset)
{
int i = (int) (Math.random () * 10);
int j = (int) (Math.random () * 10);
int oneTwo = (int) (Math.random () * 2);

if (oneTwo == 0)
{

if ((board [j] == ' ') && (j < 6))
{
if (board [j + 1] == ' ')
{
if (board [j + 2] == ' ')
{
if (board [j + 3] == ' ')
{
if (board [j + 4] == ' ')
{
for (int r = j ; r < j + 5 ; r++)
{
board [r] = 'A';
System.out.println (board [r]);

}
beset = true;
}
}
}
}
}
}
else
{
if ((board [j] == ' ') && (i < 6))
{
if (board [i + 1] [j] == ' ')
{
if (board [i + 2] [j] == ' ')
{
if (board [i + 3] [j] == ' ')
{
if (board [i + 4] [j] == ' ')
{
for (int r = i ; r < i + 5 ; r++)
{
board [r] [j] = 'A';
System.out.println (board [r] [j]);

}
beset = true;
}
}
}
}
}

}


// countA++;
// beset = true;
}
// else
//{
// countA = countA;

}


void display ()
{

System.out.println ("A B C D E F G H I J");

for (int i = 0 ; i < 10 ; i++)
{
for (int j = 0 ; j < 10 ; j++)

{
// System.out.println (board [j]);
switch (board [j])
{
case ' ':
System.out.print ("0 ");
break;

case 'S':
System.out.print ("S ");
break;

case 'A':
System.out.print ("A ");
break;

case 'B':
System.out.print ("B ");
break;

case 'X':
System.out.print ("X ");
break;
case 'M':
System.out.print ("M ");
break;

default:
System.out.println ("p ");

}

}

System.out.println ();

}
}


void askUser () throws IOException
{
System.out.println ();
System.out.println ("Welcome to Jasper's BattleShips! ! !");
System.out.println ();
System.out.println ("Your score will start at 100. ");
System.out.println ("The program will terminate if you reach a score below 0. Good Luck!");

int score = 100;

do
{
System.out.println ("Your current score is " + score);
System.out.println ("Please enter the location to hit! ! !");
System.out.print ("Column: ");
String columnIndex = input.readLine ().toLowerCase ();
char columnChar = columnIndex.charAt (0);
int column = 0;

switch (columnChar)
{
case 'a':
column = 0;
break;

case 'b':
column = 1;
break;

case 'c':
column = 2;
break;

case 'd':
column = 3;
break;

case 'e':
column = 4;
break;

case 'f':
column = 5;
break;

case 'g':
column = 6;
break;

case 'h':
column = 7;
break;

case 'i':
column = 8;
break;

case 'j':
column = 9;
break;

default:
System.out.print ("Please stay within the limits.");

}


System.out.print ("Row: ");
int rowInt = Integer.parseInt (input.readLine ());
int row = 0;

switch (rowInt)
{
case 1:
row = 0;
break;

case 2:
row = 1;
break;

case 3:
row = 2;
break;

case 4:
row = 3;
break;

case 5:
row = 4;
break;

case 6:
row = 5;
break;

case 7:
row = 6;
break;

case 8:
row = 7;
break;

case 9:
row = 8;
break;

case 10:
row = 9;
break;


}


switch (board [row] [column])
{
case ' ':
board [row] [column] = 'M';
score = score - 5;
display ();
break;

case 'A':
board [row] [column] = 'X';
score = score + 15;
display ();
break;


case 'B':
board [row] [column] = 'X';
score = score + 10;
display ();
break;


case 'S':
board [row] [column] = 'X';
score = score + 5;
display ();
break;

default:
System.out.print ("FOUT FOKKER!!!");


}

}



while (score > 0);
{
System.out.println ("Game Over");
}





/* if (board [row] [column] == ' ')
{
System.out.println ("Sorry, no hit!!");
board [row] [column] = 'X';

}
else
{
if (board [row] [column] == 'A')



}
}*/
}






/* if (board [row] [column] == ' ')
{
System.out.println ("Sorry, no hit!!");
board [row] [column] = 'X';

}
else
{
if (board [row] [column] == 'A')



}
}*/
}


// The "BattleShipsDriver" class.
import java.io.*;
public class BattleShipsDriver
{
public static void main (String [] args) throws IOException
{
BattleShips mainObj = new BattleShips ();
mainObj.blank ();
mainObj.place ();
mainObj.display ();
mainObj.askUser ();
// Place your code here
} // main method
} // BattleShipsDriver class
marc weber
Sheriff

Joined: Aug 31, 2004
Posts: 11343

I would start with Sun's Swing tutorial...

http://java.sun.com/docs/books/tutorial/uiswing/index.html


"We're kind of on the level of crossword puzzle writers... And no one ever goes to them and gives them an award." ~Joe Strummer
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Joe Ess
Bartender

Joined: Oct 29, 2001
Posts: 8903
    
    8

Please don't post the same topic to multiple forums. As our FAQ, How To Ask Questions On Java Ranch, states, Carefully Choose One Forum. Crossposting can cause confusion and duplication of effort.


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Marilyn de Queiroz
Sheriff

Joined: Jul 22, 2000
Posts: 9046
    
  10
Originally posted by marc weber:
I would start with Sun's Swing tutorial...

http://java.sun.com/docs/books/tutorial/uiswing/index.html


I think they cover how to change from an app to a GUI in that same tutorial. If you have a specific question or problem, please post again.


JavaBeginnersFaq
"Yesterday is history, tomorrow is a mystery, and today is a gift; that's why they call it the present." Eleanor Roosevelt
marc weber
Sheriff

Joined: Aug 31, 2004
Posts: 11343

Originally posted by Marilyn de Queiroz:
...I think they cover how to change from an app to a GUI in that same tutorial...

I expect so. Typically, the logical part of the code (already written here) would be considered the "model," and the GUI would be the "view."

Here's a good intro to the "Model-View-Controller" pattern...

http://csis.pace.edu/~bergin/mvc/mvcgui.html
 
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subject: Creating simple GUI interface for BattleShips