roulette-sim.py

roulette-sim.py

#!/usr/bin/python

import random

NUMBER_OF_PLAYS = 1000000


class GamblingGame(object):
	pass

class Roulette(GamblingGame):

	bets = {}

	playable_numbers = [
	'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 
	'10', '11', '12', '13', '14', '15', '16', '17', '18', '19', 
	'20', '21', '22', '23', '24', '25', '26', '27', '28', '29', 
	'30', '31', '32', '33', '34', '35', '36', '00']

	def __init__(self, *args, **kwargs):

		super(Roulette, self).__init__(*args, **kwargs)


	def place_bets(self, **kwargs):
		"""
		Key: The number to bet on.
		Value: The amount to bet.
		"""
		bets = {}
		for k, v in kwargs.items():
			key = str(k)
			value = v
			if key not in self.playable_numbers:
				raise ValueError("%s is not a valid number." % k)
			bets[key] = value

		self.bets.update(bets)

	def clear_bets(self):

		self.bets = {}

	def play(self):

		size = len(self.playable_numbers) - 1
		pos = random.randint(0, size)
		roulette_value = self.playable_numbers[pos]

		# deal with winning
		if roulette_value in self.bets.keys():
			winning = self.bets[roulette_value] * 35
			self.clear_bets()
			return winning

		# deal with loss
		net_loss = 0
		for k, v in self.bets.items():
			net_loss -= v
		return net_loss

def play_roulette():

	game = Roulette()

	# determine bets
	# bets = {
	# 	'29': 10,
	# 	'8': 10,
	# 	'12': 10,
	# 	'25': 10,
	# 	'10': 10
	# }
	bets = {
		# reds
		'1': 10,
		'3': 10,
		'5': 10,
		'7': 10,

		'9': 10,
		'12': 10,
		'14': 10,
		'16': 10,

		# blacks
		'2': 10,
		'4': 10,
		'6': 10,
		'8': 10,
		
		'10': 10,
		'11': 10,
		'13': 10,
		'15': 10,
		
		'17': 10,
		'20': 10,
		'22': 10,
		'24': 10,
		
		'26': 10,
		'28': 10,
		'29': 10,
		'31': 10,
		
		'33': 10,
		'35': 10
	}

	# play
	winnings = 0
	amount_bet = 0
	for i in xrange(NUMBER_OF_PLAYS):
		print "Trial #", i
		amount_bet += (5*10)
		game.clear_bets()
		game.place_bets(**bets)

		win = game.play()
		# print "Game #%s: $%s; \t Net Winnings: %s" % (i, win, winnings)
		winnings += win

	# print "Final Winnings: %s" % winnings
	# print "Amount Spent: %s" % amount_bet
	return winnings, amount_bet

if __name__ == "__main__":

	winnings = 0
	amount_bet = 0
	
	winnings, amount_bet = play_roulette()


	print "The final winnings is: %s" % winnings
	print "The final amount spent is: %s" % amount_bet
	print "Net Winnings: %s" % (winnings - amount_bet)
	percentage = (((winnings - amount_bet) / float(amount_bet))) * 100
	print "Percent Win: %s" % percentage