SerpentGamble

# Verified by EthereumHistory (ethereumhistory.com)
#
# Vitalik Buterin's first deployed contract: a provably-fair betting game
# 0x034dF87052894BbE35CBd4546fD1d3Bdf7200E2F  (block 263291, 2015-09-20)
# Serpent (ethereum/serpent @ f0b4128). Runtime + creation bytecode EXACT match.

event Bet(sender:address, value:uint256, odds:uint256)
event NewSeed()

data owner
data curseed
data deadline
data bets[2^100](sender, guess, payout, odds)
data numbets
data reserved

def init():
    self.owner = msg.sender

def get_curseed():
    return(self.curseed)

def set_curseed(a:bytes32, b:bytes32):
    if msg.sender != self.owner:
        return(0)
    if a != sha3(self.curseed) and self.curseed != 0:
        return(0)
    i = 0
    n = self.numbets
    seed = 115792089237316195423570985008687907853269984665640564039457584007913129639
    while i < n:
        rand = div(sha3([a, self.bets[i].guess]:arr), seed)
        if rand < self.bets[i].odds:
            send(self.bets[i].sender, self.bets[i].payout)
        self.bets[i].sender = 0
        i += 1
    self.numbets = 0
    self.curseed = b
    self.deadline = block.timestamp + 172800
    log(type=NewSeed)
    return(1)

def emergency_withdraw():
    if block.timestamp <= self.deadline:
        return(0)
    i = 0
    n = self.numbets
    while i < n:
        send(self.bets[i].sender, self.bets[i].payout * self.bets[i].odds / 1000)
        self.bets[i].sender = 0
        i += 1
    suicide(0xde0b295669a9fd93d5f28d9ec85e40f4cb697bae)

def bet(guess:bytes32, odds):
    if self.numbets >= 100:
        send(msg.sender, msg.value)
        return(-1)
    payout = msg.value * 1000 / odds
    if self.balance - self.reserved < payout:
        send(msg.sender, msg.value)
        return(-2)
    self.reserved += payout
    id = self.numbets
    self.bets[id].sender = msg.sender
    self.bets[id].guess = guess
    self.bets[id].payout = payout
    self.bets[id].odds = odds
    self.numbets = id + 1
    log(type=Bet, msg.sender, msg.value, odds)
    return(id)

def withdraw():
    send(self.owner, self.balance - self.reserved)

def get_num_bets():
    return(self.numbets)

def get_bet(id):
    return([self.bets[id].sender, self.bets[id].payout, self.bets[id].odds]:arr)