Python


#1



https://www.codecademy.com/en/courses/python-beginner-en-4XuFm/2/4?curriculum_id=4f89dab3d788890003000096


Hello, I have a question about Python Battleship! exercise. When we print the board in the terminal, how does it happen that all "O" rows appear just one under another? When I try doing it on my own computer, they are just printed one after another in a row, what's the code for structuring them just like in the exercise?


Replace this line with your code. 
from random import randint

board = []

for x in range(5):
    board.append(["O"] * 5)

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

print "Let's play Battleship!"
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)
#print ship_row
#print ship_col

# Everything from here on should go in your for loop!
# Be sure to indent four spaces!
for turn in range(4):
    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 + 1) here!
    print "Turn", turn + 1
    print_board(board)
    if turn == 3:
        print "Game Over"


#2

but you are not going to tell us what those questions are?


#3

sorry, I pressed the wrong button. Now I've finished my question


#4

its because of your print_board function, it prints each row on a separate line

if you run this code on your computer, that should also happen


#5

Thank you! Also, I have a question with this particular line:
board[guess_row][guess_col] = "X"
doesn't it make sense to rewrite as "board[guess_row - 1][guess_col - 1] = "X""? Because it's more convenient to guess from 1 to 5, than from 0 to 4....


#6

that is possible, but then subtract one from the user input directly, this way your range() is still validates correctly if shot is in on the board


#7

This topic was automatically closed 7 days after the last reply. New replies are no longer allowed.