a simple battleship python script

I have written a simple python game script to sink a battleship. It is very simple as it was almost a year ago last time when I wrote a long python script. Thanks to codeacademy that it helps to brush up my python skills. I think it is also good to put the script here for my documentation. Simply, you guess the coordinates of the point and by default you have maximum 4 turns to do it right. Each time a guess is run, coordinate is marked by “X”. Below is a sample execution:

$ ./battleShip.py  
==================================================
- Let's play Battleship!
- Take a guess between 0 and 4 for row & column
- You have 4 turns to complete the game
==================================================

Battleship field
================
O O O O O
O O O O O
O O O O O
O O O O O
O O O O O


Guess Row:1
Guess Col:2
You missed my battleship!
Turn 1 

Battleship field
================
O O O O O
O O X O O
O O O O O
O O O O O
O O O O O


Guess Row:3
Guess Col:3
You missed my battleship!
Turn 2 

Battleship field
================
O O O O O
O O X O O
O O O O O
O O O X O
O O O O O


Guess Row:2
Guess Col:3
You missed my battleship!
Turn 3 

Battleship field
================
O O O O O
O O X O O
O O O X O
O O O X O
O O O O O


Guess Row:0
Guess Col:0
You missed my battleship!
Turn 4 

Battleship field
================
X O O O O
O O X O O
O O O X O
O O O X O
O O O O O
Game Over

Here is the code itself:

#!/usr/bin/env python

"""
A simple BattleShip game

"""

from random import randint

#If 1, display the guess of the computer for testing
COMPUTER_GUESS=0
#Number of guesses allowed
NO_USER_GUESS=4

board = []

#Create a 5x5 2 dimensional list
for x in range(5):
    board.append(["O"] * 5)

def print_board(board):
    print "Battleship field"
    print "================"
    for row in board:
        print " ".join(row)

print "=" * 50
print "- Let's play Battleship!"
print "- Take a guess between 0 and 4 for row & column"
print "- You have " + str(NO_USER_GUESS) + " turns to complete the game" 
print "=" * 50 + "\n"
print_board(board)

def random_row(board):
    return randint(0, len(board) - 1)

def random_col(board):
    return randint(0, len(board[0]) - 1)

ship_row = random_row(board)
ship_col = random_col(board)

if COMPUTER_GUESS == 1:
  print "Computer guessed row: %d column: %d" % (ship_row,ship_col)

turn = 0
for attempt in range(NO_USER_GUESS):
  print "\n"
  guess_row = int(raw_input("Guess Row:"))
  guess_col = int(raw_input("Guess Col:"))

  if guess_row == ship_row and guess_col == ship_col:
      print "Congratulations! You sunk my battleship!"
      break
  else:
      if (guess_row < 0 or guess_row > 4) or (guess_col < 0 or guess_col > 4):
          print "Oops, that's not even in the ocean."
      elif(board[guess_row][guess_col] == "X"):
          print "You guessed that one already!!!"
      else:
          print "You missed my battleship!"
          board[guess_row][guess_col] = "X"

      print "Turn %d \n" % (turn + 1) 
      print_board(board)
      turn = turn + 1
      
      if turn == NO_USER_GUESS:
          print "Game Over"

About: rtoodtoo

Genco has worked for more than 10 years as a Network/Support Engineer. He is also interested in Python, Linux, Security and SD-WAN, currently lives in the Netherlands and works as a Network Support Engineer at Tesla Inc. // JNCIE-SEC #223 / RHCE / PCNSE


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