Python Unit 4 Lesson 4
Step 1,2,3 完成後， Bonus 前
main.py
import game
print("--- Your turn ---")
user_total = game.play_user_turn()
print(">> That's a " + game.get_name(user_total) + "!")
print("--- Computer turn ---")
computer_total = game.play_computer_turn(user_total)
print(">> The computer has a " + game.get_name(computer_total) + ".")
winner = game.get_winner(user_total, computer_total)
print("GAME OVER: " + winner + " wins!")
game.py
"""Supports a round of dice 21 between a user and the computer."""
import die
def get_name(total):
"""Returns the name for the given roll total."""
if total > 21:
return "bust"
elif total == 21:
return "perfect roll"
else:
return str(total)
def get_winner(user_total, computer_total):
"""Returns the name of the winner based on the roll totals."""
if user_total <= 21 and computer_total <= 21:
if user_total == computer_total:
return "no one"
elif user_total > computer_total:
return "user"
else:
return "computer"
elif user_total <= 21 and computer_total > 21:
return "user"
elif user_total > 21 and computer_total <= 21:
return "computer"
else:
return "no one"
def play_user_turn():
"""Plays the user's turn and returns their final roll total."""
total = die.roll()
while should_user_roll_again(total):
total = total + die.roll()
return total
def play_computer_turn(user_total):
"""Plays the computer's turn and returns their final roll total."""
total = die.roll()
while should_computer_roll_again(total, user_total):
total = total + die.roll()
return total
def should_user_roll_again(total):
"""Prompts the user and returns True if they choose to roll again."""
# Skip the prompt if they've already reached 21.
if total >= 21:
return False
display_total = "Your total is " + str(total) + "."
prompt = "Roll again? (yes/no) "
roll_again = input(display_total + " " + prompt)
return roll_again == "yes" or roll_again == "y"
def should_computer_roll_again(total, user_total):
"""Returns True if the computer should roll again."""
if user_total > 21 or total >= user_total:
return False
else:
return True
die.py
"""Simulates a standard 6-sided die roll."""
import random
def roll():
"""Draws and returns a random roll of a six-sided die."""
die_num = random.randint(1, 6)
draw(die_num)
return die_num
def draw(die_num):
"""Prints out an ASCII art representation of a die."""
print(" ------- ")
if die_num == 2:
print("| * |")
print("| |")
print("| * |")
elif die_num == 3:
print("| * |")
print("| * |")
print("| * |")
elif die_num == 4:
print("| * * |")
print("| |")
print("| * * |")
elif die_num == 5:
print("| * * |")
print("| * |")
print("| * * |")
elif die_num == 6:
print("| * * |")
print("| * * |")
print("| * * |")
else:
print("| |")
print("| * |")
print("| |")
print(" ------- ")
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