Write an interactive, text-based program that allows the user to play a one-play

ID: 3744105 • Letter: W

Question

Write an interactive, text-based program that allows the user to play a one-player simplified Battleship game. This game will use a 1-dimensional array. The user will play against the computer. You can read more about the general game on Wikipedia (Links to an external site.)Links to an external site..

From the picture shown below I would like you to display this through the game of Battleship, the computer will randomly place ships somewhere in a 1-dimensional area. The user will guess positions. If the user guesses all positions of a ship, they sink that ship. If they sink all ships, they win.

Game Requirements

The ships:

The computer must create at least 3 ships.

The ships CAN NOT all be the same sizes, they must be different from the other ships sizes.

The ships must be randomly placed within the array.

The array must be a grid and show every time whether a ship is hit or missed on the board as shown in the picture below.

User communication:

Provide information to the user about the number of hits and misses. Provide a message about whether each guess is a hit or miss.

If the user guesses a number outside of the acceptable range, provide an error message e.g “Outside of range”.

Ending the game:

If the user hits all positions on all ships, the user wins.

If the user gets more than the maximum number of allowed misses, the user loses.

After the user wins or loses, ask them if they want to play again.

Programming Requirements

Place all of your code inside of one class: Battleship.java.

Note: because we have not yet covered classes and objects, you are not required to create separate game/interaction classes.

Use at least one 1-dimensional array to represent the location of the ships.

Note: you may choose to use more than one array!

Break your code up into logical methods.

Do not put all of your code inside of main. Write static methods and invoke those methods from main.

Carefully consider the best logical breakdown for your methods.

For full credit, follow good principles of object-oriented programming, method design, and naming conventions.

Think carefully about what variables you need.

Use constants where appropriate.

Avoid duplicating code. Reuse code whenever possible.

Notes and Suggestions

To avoid problems with switching between reading numeric input and text input from the user, use this code to read in number input:

int number = Integer.parseInt(scan.nextLine());

For variables that you want to use across methods (for example, the array that represents the ship locations, the number of guesses, etc.), you can declare the outside of any method and make it static.

For example: private static int numberOfGuesses;

It can be very useful to print out information during testing/programming that won't be printed in the final version of the game.

For example, the random locations of the ships (e.g., System.out.println(Arrays.toString(shipLocations));

It can be helpful to start with a small array size for testing purposes (e.g., 20) and then only increase the size once the game is working.

Final

In your output for the user, include a message when the user has sunk each additional ship. For example, instead of just saying "Hit!", you would say either "Hit!" or "Hit! You've sunk the size 3 ship!"

elcome to Battleship! The sizes of the ships are [3, 4, 5] Enter a number to fire at the ship. You only get 10 misses! ere are your shots so far (H is hit, M is miss): e 1 2 3 45 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 474849 re avay! Aln for a location betveen e and se

Explanation / Answer

package Game;

import java.util.*;

// Class Battleship definition

public class Battleship

{

// Instance variable to store data

static char player[];

static int size;

static int numberOfGuesses;

static int currentGuess;

static int hitStatus;

static int ship[];

// Static method to initialize data member

public static void initialize(int si, int ng)

{

// Initializes size of the array

size = si;

// Initializes number of guesses

numberOfGuesses = ng;

currentGuess = 0;

hitStatus = 0;

player = new char[size+1];

ship = new int[3];

// Loops 3 times to initialize ship position to zero

for(int x = 0; x < 3; x++)

ship[x] = 0;

// Loops up to given array size to initialize player position to '-'

for(int x = 0; x <= size; x++)

player[x] = '-';

}// End of method

// Static method to display the board

public static void displayBoard()

{

System.out.println("Here are your shots so far (H is hit, M is miss): ");

System.out.print("0 ");

// Loops up to board size

for(int x = 1; x <= size; x++)

{

// Checks if loop counter value is divisible by 20 then display x value with new line

if(x % 20 == 0)

System.out.println(x + " ");

// Otherwise not divisible by 20 display only x value

else

System.out.print(x + " ");

}// End of for loop

System.out.println("-");

// Loops up to board size

for(int x = 1; x <= size; x++)

{

// Checks if loop counter value is divisible by 20 then display x value with new line

if(x % 20 == 0)

System.out.println(player[x] + " ");

// Otherwise not divisible by 20 display only x value

else

System.out.print(player[x] + " ");

}// End of for loop

System.out.println(" Fire away! Aim for a location between 0 and " + size);

}// End of method

// Method to generate random position for the ship

public static void generateRandomPos(int no)

{

// Random class object created

Random rand = new Random();

// Loops till number of ship

for(int x = 0; x < no; x++)

// Generate random number between 0 and size and store it in x index position of ship

ship[x] = rand.nextInt((size - 0) + 1) + 0;

}// End of method

// Method to return true if valid position given by the user otherwise returns false

public static boolean validPosition(int pos)

{

// Checks if position is greater than or equals to zero and less than or equals to size then return true

if(pos >= 0 && pos <= size)

return true;

// Otherwise return false

else

return false;

}// End of method

// Method to set the hit or miss status

public static void hitingStatus(int pos)

{

// Checks if position entered by the user is equals to the value stored at 0 index position

if(pos == ship[0])

{

// Set 'H' for Hit at pos index position of player array

player[pos] = 'H';

// Assigns -1 at 0 index position of ship array

ship[0] = -1;

// Increase the hit count by one

hitStatus++;

}// End of if condition

// Otherwise checks if position entered by the user is equals to the value stored at 1 index position

else if(pos == ship[1])

{

// Set 'H' for Hit at pos index position of player array

player[pos] = 'H';

// Assigns -1 at 1 index position of ship array

ship[1] = -1;

// Increase the hit count by one

hitStatus++;

}// End of else if condition

// Otherwise checks if position entered by the user is equals to the value stored at 1 index position

else if(pos == ship[2])

{

// Set 'H' for Hit at pos index position of player array

player[pos] = 'H';

// Assigns -1 at 2 index position of ship array

ship[2] = -1;

// Increase the hit count by one

hitStatus++;

}// End of else if condition

// Otherwise set 'M' for miss at pos index position of player array

else

player[pos] = 'M';

}// End of method

// Method to return game finish status

public static boolean gameFinishStatus()

{

boolean status = false;

// Checks if hit status is less than number of ships then set the status to false

if(hitStatus < ship.length)

status = false;

// Otherwise set the status to true

else

status = true;

// Returns the status

return status;

}// End of method

// Method to display initial message

public static void initialMessage()

{

System.out.println("Welcome to Battleship!");

System.out.println("The size of the ships are: [3, 4, 5]");

System.out.println("Enter a number to fire at the ship. You only get " + numberOfGuesses + " misses!");

}// End of method

// main method definition

public static void main(String ss[])

{

// To store user choice

char choice;

// To store the position entered by the user

int pos;

// Scanner class object created to accept data from the user

Scanner sc = new Scanner(System.in);

// Calls the method to initialize board size and number of hit

initialize(50, 5);

// Calls the method to display initial message

initialMessage();

// Calls the method to generate number of random ship position

generateRandomPos(3);

// Calls the method to display board

displayBoard();

// Loops till user choice is not 'N' or 'n'

{

// Accepts the position from the user

pos = sc.nextInt();

// Calls the method to validate the position

if(validPosition(pos))

{

// Increase the current change counter

currentGuess++;

// Call the method to check hitting status

hitingStatus(pos);

}// End of if condition

// Otherwise display error message

else

System.out.println("Out of range. Try again.");

// Calls the method to display board

displayBoard();

// Checks game finish status

if(gameFinishStatus())

{

// Checks if hit status is equals to number of ships

if(hitStatus == ship.length)

{

// Displays the winning status

System.out.println("Congratulation You Won The Battle");

// Accepts user choice

System.out.println("Play again? Enter y or n");

choice = sc.next().charAt(0);

// Calls the method to initialize board size and number of hit

initialize(50, 5);

// Calls the method to generate number of random ship position

generateRandomPos(3);

// Calls the method to display board

displayBoard();

// Checks if choice is 'N' or 'n' then stop the game

if(choice == 'N' || choice == 'n')

{

System.out.println("Good Buy");

break;

}// End of inner if condition

}// End of if condition for hit

}// End of if condition for game finish

// Checks if current change is equals to maximum number of chances

else if(currentGuess == numberOfGuesses)

{

// Displays the winning status

System.out.println("Sorry you loss the game.");

// Accepts user choice

System.out.println("Play again? Enter y or n");

choice = sc.next().charAt(0);

// Calls the method to initialize board size and number of hit

initialize(50, 5);

// Calls the method to generate number of random ship position

generateRandomPos(3);

// Calls the method to display board

displayBoard();

// Checks if choice is 'N' or 'n' then stop the game

if(choice == 'N' || choice == 'n')

{

System.out.println("Good Buy");

break;

}// End of inner if condition

}// End of else if condition

}while(true);// End of do - while loop

}// End of method

}// End of class

Sample Output:

Welcome to Battleship!

The size of the ships are: [3, 4, 5]

Enter a number to fire at the ship. You only get 5 misses!

Here are your shots so far (H is hit, M is miss):

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

41 42 43 44 45 46 47 48 49 50 -

- - - - - - - - - - - - - - - - - - - -

- - - - - - - - - -

Fire away! Aim for a location between 0 and 50

Here are your shots so far (H is hit, M is miss):

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

41 42 43 44 45 46 47 48 49 50 -

- - - - - - - - - - - - - - - - - - - -

H - - - - - - - - - - - - - - - - - - -

- - - - - - - - - -

Fire away! Aim for a location between 0 and 50

Here are your shots so far (H is hit, M is miss):

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

41 42 43 44 45 46 47 48 49 50 -

H - - - - - - - - - - - - - - - - - - -

- - - - - - - - - -

Fire away! Aim for a location between 0 and 50

Out of range. Try again.

Here are your shots so far (H is hit, M is miss):

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

41 42 43 44 45 46 47 48 49 50 -

H - - - - - - - - - - - - - - - - - - -

- - - - - - - - - -

Fire away! Aim for a location between 0 and 50

Here are your shots so far (H is hit, M is miss):

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

41 42 43 44 45 46 47 48 49 50 -

H - - - - - - - - - - - - - - - - - - -

H - - - - - - - - - H - - - - - - - - -

- - - - - - - - - -

Fire away! Aim for a location between 0 and 50

Congratulation You Won The Battle

Play again? Enter y or n

Here are your shots so far (H is hit, M is miss):

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

41 42 43 44 45 46 47 48 49 50 -

- - - - - - - - - - - - - - - - - - - -

- - - - - - - - - -

Fire away! Aim for a location between 0 and 50

Here are your shots so far (H is hit, M is miss):

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

41 42 43 44 45 46 47 48 49 50 -

- - - - - - - - - - M - - - - - - - - -

- - - - - - - - - - - - - - - - - - - -

- - - - - - - - - -

Fire away! Aim for a location between 0 and 50

Here are your shots so far (H is hit, M is miss):

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

41 42 43 44 45 46 47 48 49 50 -

- - - - - - - - - - M - - - - - - - - -

- M - - - - - - - - - - - - - - - - - -

- - - - - - - - - -

Fire away! Aim for a location between 0 and 50

Out of range. Try again.

Here are your shots so far (H is hit, M is miss):

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

41 42 43 44 45 46 47 48 49 50 -

- - - - - - - - - - M - - - - - - - - -

- M - - - - - - - - - - - - - - - - - -

- - - - - - - - - -

Fire away! Aim for a location between 0 and 50

Here are your shots so far (H is hit, M is miss):

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

41 42 43 44 45 46 47 48 49 50 -

- - - - - - - - - - M - - - - - - - - -

- M - - - - - - - - - - - - - - - - - M

- - - - - - - - - -

Fire away! Aim for a location between 0 and 50

Here are your shots so far (H is hit, M is miss):

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

41 42 43 44 45 46 47 48 49 50 -

- - - - - - - - - - M - - - - - - - - -

- M H - - - - - - - - - - - - - - - - M

- - - - - - - - - -

Fire away! Aim for a location between 0 and 50

Here are your shots so far (H is hit, M is miss):

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

41 42 43 44 45 46 47 48 49 50 -

- M - - - - - - - - M - - - - - - - - -

- M H - - - - - - - - - - - - - - - - M

- - - - - - - - - -

Fire away! Aim for a location between 0 and 50

Sorry you loss the game.

Play again? Enter y or n

47 10 20

Here are your shots so far (H is hit, M is miss):

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

41 42 43 44 45 46 47 48 49 50 -

- - - - - - - - - - - - - - - - - - - -

- - - - - - - - - -

Fire away! Aim for a location between 0 and 50

Good Buy

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