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run.py
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run.py
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from random import randint
# 'X' = ships hit
# '*' = turns missed
# Player's board = The computer's guesses displayed
# Computer's board = The player's guesses displayed
def start_game():
# Welcome message
print('=' * 42)
print('-- BATTLESHIPS --'.center(42))
print('=' * 42)
print('WELCOME!'.center(42))
print('')
print('Row: 1-8, Column: A-H'.center(42))
print('Ships: 5, Turns: 30'.center(42))
print('=' * 42)
# Prompt the player to enter their name
player_name = input('Enter your name: \n')
while not player_name.strip():
print('Invalid input, name cannot be empty')
player_name = input('Enter your name: \n')
# Board with generated ships
player_board = [[' '] * 8 for x in range(8)]
computer_board = [[' '] * 8 for x in range(8)]
# Guessing board with ships hidden
player_guess_board = [[' '] * 8 for x in range(8)]
computer_guess_board = [[' '] * 8 for x in range(8)]
let_to_num = {
'A': 0,
'B': 1,
'C': 2,
'D': 3,
'E': 4,
'F': 5,
'G': 6,
'H': 7
}
# Board labels
label1 = f"{player_name.upper()}'S BOARD"
label2 = "COMPUTER'S BOARD"
# Prints the board
def print_board(board, label):
print(f'\n {label}')
print('-----------------'.center(21))
print('A B C D E F G H'.center(21))
row_num = 1
for row in board:
print(f"{str(row_num).rjust(2)}|{'|'.join(row)}|")
row_num += 1
# Prints empty starter boards for player and computer
print_board(player_guess_board, label2.center(18))
print_board(computer_guess_board, label1.center(19))
# Player guess ship locations on the computer board
def get_ship_location():
print('')
print('Make your guess')
print('----------------')
# Player enter a row number between 1 to 8
row = input('Row 1-8: \n')
while row not in '12345678' or row == '':
if row == '':
print('Empty input, please enter a number between 1 and 8')
else:
print('Invalid input, please enter a number between 1 and 8')
row = input('Row 1-8: \n')
# Player enter a column letter between A to H
column = input('Column A-H: \n').upper()
print('----------------')
while column not in 'ABCDEFGH' or column == '':
if column == '':
print('Empty input, please enter a letter between A and H')
else:
print('Invalid input, please enter a letter between A and H')
column = input('Column A-H: \n').upper()
return int(row) - 1, let_to_num[column]
# Generates random ships for player and computer
def generate_ships(board, label):
for ship in range(5):
ship_row, ship_column = randint(0, 7), randint(0, 7)
while board[ship_row][ship_column] == 'X':
ship_row, ship_column = get_ship_location()
board[ship_row][ship_column] = 'X'
# Counts amount of ships that's hit
def count_hit_ships(board):
count = 0
for row in board:
for column in row:
if column == 'X':
count += 1
return count
# Generate ships on player and computer board
generate_ships(computer_board, label2)
generate_ships(player_board, label1)
# Player and computer results
player_results = []
computer_results = []
# Current player and computer score, updates each time a ship is hit
player_score = 0
computer_score = 0
turns = 30
while turns > 0:
# Player guess
while True:
row, column = get_ship_location()
if player_guess_board[row][column] == '*':
print("You've guessed that already, try again!")
elif computer_board[row][column] == 'X':
player_guess_board[row][column] = 'X'
print_board(player_guess_board, label2.center(18))
turns -= 1
player_results.append(f"{player_name.upper()}: A HIT!")
player_score += 1
break
else:
player_guess_board[row][column] = '*'
print_board(player_guess_board, label2.center(18))
turns -= 1
player_results.append(f"{player_name.upper()}: MISSED!")
break
# Player wins
if count_hit_ships(player_guess_board) == 5:
print(f"{player_name.upper()} WON THE GAME!")
# Restart or quit game
restart = input(
'Press Enter to restart, Q to quit: \n'
).upper()
while restart != '' and restart != 'Q':
print('Invalid input, press Enter to restart or Q to quit')
restart = input(
'Press Enter to restart, Q to quit: \n'
).upper()
if restart == '':
start_game()
elif restart == 'Q':
print('Thanks for playing!')
break
# Computer guess
while True:
row, column = randint(0, 7), randint(0, 7)
while computer_guess_board[row][column] == '*':
row, column = randint(0, 7), randint(0, 7)
if player_board[row][column] == 'X':
computer_guess_board[row][column] = 'X'
print_board(computer_guess_board, label1.center(19))
computer_results.append('COMPUTER: A HIT!')
computer_score += 1
break
else:
computer_guess_board[row][column] = '*'
print_board(computer_guess_board, label1.center(19))
computer_results.append('COMPUTER: MISSED!')
break
# Computer wins
if count_hit_ships(computer_guess_board) == 5:
print('COMPUTER WON THE GAME!')
# Restart or quit game
restart = input(
'Press Enter to restart, Q to quit: \n'
).upper()
while restart != '' and restart != 'Q':
print('Invalid input, press Enter to restart or Q to quit')
restart = input(
'Press Enter to restart, Q to quit: \n'
).upper()
if restart == '':
start_game()
elif restart == 'Q':
print('Thanks for playing!')
break
# Displays result of each turn with hit or miss for player and computer
print('')
print('====================')
for player_result, computer_result in zip(
player_results, computer_results
):
print(f" {player_result:<20}")
print('')
print(f" {computer_result:<20}")
print('--------------------')
# Player and computer score, updates each time a ship is hit
print(f" {player_name.upper()}: {player_score}")
print('')
print(f" COMPUTER: {computer_score}")
print('--------------------')
# Turns left
print(' '+str(turns)+' turn(s) left')
# No turns left
if turns == 0:
print('GAME OVER!')
# Restart or quit game
restart = input(
'Press Enter to restart, Q to quit: \n'
).upper()
while restart != '' and restart != 'Q':
print('Invalid input, press Enter to restart or Q to quit')
restart = input(
'Press Enter to restart, Q to quit: \n'
).upper()
if restart == '':
start_game()
elif restart == 'Q':
print('Thanks for playing!')
break
print('====================')
# Clear old result after each turn
player_results.clear()
computer_results.clear()
start_game()