Python实现国外赌场热门游戏Craps（双骰子）

import random
 
point_set = False
bet = 10
bankroll = 1000
sim_win = 0
sim_lose = 0
 
print """
     Welcome to the 'Seven Star' casino!
     You are playing craps now,
     your started bankroll is '$1000',
     the started bet is '$10',
     command: 
       play(): "Rolling the dices"
       check_bankroll(): "Checking your current balance"
       all_in(): Showing "hand"
       set_bet(): "Setting a new bet"
       game(): "Check your game status"
       auto(): "It can be played automatically for you until reach a specific bankroll"
"""
 
def roll():
  d1 = random.randrange(1,7)
  d2 = random.randrange(1,7)
  print "You rolled", d1, "+", d2, "=", d1+d2
  return d1 + d2
   
def play():
   
  global point_set, bankroll, point
  global sim_win, sim_lose
   
  if bankroll < bet:
    print "Sorry, you can't play since you don't have enough money!"
    print """Do you wanna get more money"""
    choice = raw_input("")
    if choice == str(1):
      money = raw_input("How much do you wanna get")
      bankroll += int(money)
      print "Your current bankroll is: ", bankroll
    if choice == str(2):
      print "Thanks for playing! See you next time!"
  else:
    if not point_set:
      print
      print "New game. Your bet is: ", bet
     
    # for the first roll
    r = roll()
    if not point_set:
      if r in (7, 11):
        bankroll += bet
        sim_win += 1
        print "Congratz! You Won! Your bankroll is: ", bankroll
      elif r in (2, 3, 12):
        bankroll -= bet
        sim_lose += 1
        print "Oops! You lost! Your bankroll is: ", bankroll
      else:
        point = r
        point_set = True
        print "Your point is", "[", point, "]"
    # for subsequence rolls
    elif r == 7:
      bankroll -= bet
      sim_lose += 1
      point_set = False
      print "You crapped out! Your bankroll is: ", bankroll 
    elif r == point:
      bankroll += bet
      sim_win += 1
      point_set = False
      print "You made your point! Your bankroll is: ", bankroll
                  
def set_bet(inp):
  global bet, bankroll, point_set
  print
  if point_set:
    print "WARNING!"
    print "The game has started, you will lose half of your bet if resetting your bet!"
    prompt = raw_input("""
      1: Yes, I am wanna reset my bet!
      2: No, I don't wanna reset my bet!
              """)
    if prompt == "1":
      point_set = False
      bankroll -= bet/2
      print "Forfeiting current bet. Your bankroll is: ", bankroll
    else:
      pass
  bet = int(inp)
  print "New bet size is: ", bet
 
def all_in():
    set_bet(bankroll)
     
def check_bankroll():
  global bet
  print "Your current balance is: ", bankroll
   
def game():
  total = sim_win + sim_lose
  percent = float(sim_win)/total * 100
  print "So far, the games that you have been playing are: ", total 
  print "Won ", sim_win
  print "Lost ", sim_lose
  print "Overall, you have %d%% to win!" %percent
   
def auto():
  game_status = True
  purpose = raw_input("How much are you gonna reach")
  while game_status:
    play()
    if bankroll == int(purpose) or bankroll == 0:
      game_status = False
     
  game()