craps.py and die.py (See below). Play the craps game 10 times. Show the output with each win or loss together with statistics. The following is an output example: Enter the number of games: 5 (3, 5) 8 (2, 6) 8 (2, 1) 3 (5, 2) 7 (5, 5) 10 (3, 2) 5 (6, 3) 9 (6, 5) 11
Download craps.py and die.py (See below). Play the craps game 10 times. Show the output with each win or loss together with statistics. The following is an output example:
Enter the number of games: 5
(3, 5) 8
(2, 6) 8
(2, 1) 3
(5, 2) 7
(5, 5) 10
(3, 2) 5
(6, 3) 9
(6, 5) 11
(6, 3) 9
(4, 6) 10
(1, 3) 4
(6, 5) 11
(1, 4) 5
(2, 6) 8
(6, 6) 12
(1, 2) 3
(3, 4) 7
The total number of wins is 3
The total number of losses is 2
The average number of rolls per win is 3.00
The average number of rolls per loss is 4.00
The winning percentage is 0.600
-----------------craps.py------------------------
"""
File: craps.py
This module studies and plays the game of craps.
"""
from die import Die
class Player(object):
def __init__(self):
"""Has a pair of dice and an empty rolls list."""
self._die1 = Die()
self._die2 = Die()
self._rolls = []
def __str__(self):
"""Returns a string representation of the list of rolls."""
result = ""
for (v1, v2) in self._rolls:
result = result + str((v1, v2)) + " " +\
str(v1 + v2) + "\n"
return result
def getNumberOfRolls(self):
"""Returns the number of the rolls."""
return len(self._rolls)
def play(self):
"""Plays a game, saves the rolls for that game,
and returns True for a win and False for a loss."""
self._rolls = []
self._die1.roll()
self._die2.roll()
(v1, v2) = (self._die1.getValue(),
self._die2.getValue())
self._rolls.append((v1, v2))
initialSum = v1 + v2
if initialSum in (2, 3, 12):
return False
elif initialSum in (7, 11):
return True
while (True):
self._die1.roll()
self._die2.roll()
(v1, v2) = (self._die1.getValue(),
self._die2.getValue())
self._rolls.append((v1, v2))
sum = v1 + v2
if sum == 7:
return False
elif sum == initialSum:
return True
def playOneGame():
"""Plays a single game and prints the results."""
player = Player()
youWin = player.play()
print(player)
if youWin:
print("You win!")
else:
print("You lose!")
def playManyGames():
"""Plays a number of games and prints statistics."""
number = int(input("Enter the number of games: "))
wins = 0
losses = 0
winRolls = 0
lossRolls = 0
player = Player()
for count in range(number):
hasWon = player.play()
rolls = player.getNumberOfRolls()
if hasWon:
wins += 1
winRolls += rolls
else:
losses += 1
lossRolls += rolls
print("The total number of wins is", wins)
print("The total number of losses is", losses)
print("The average number of rolls per win is %0.2f" % \
(winRolls / wins))
print("The average number of rolls per loss is %0.2f" % \
(lossRolls / losses))
print("The winning percentage is %0.3f" % (wins / number))
-----------------die.py------------------------
"""
File: die.py
This module defines the Die class.
"""
from random import randint
class Die(object):
"""This class represents a six-sided die."""
def __init__(self):
"""The initial face of the die."""
self._value = 1
def roll(self):
"""Resets the die's value to a random number
between 1 and 6."""
self._value = randint(1, 6)
def getValue(self):
return self._value
def __str__(self):
return str(self._value)
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