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pragma solidity ^0.4.0;
contract Roulette {
uint public lastRoundTimestamp;
uint public nextRoundTimestamp;
address _creator;
uint _interval;
enum BetType { Single, Odd, Even }
struct Bet {
BetType betType;
address player;
uint number;
uint value;
}
Bet[] public bets;
function getBetsCountAndValue() public constant returns(uint, uint) {
uint value = 0;
for (uint i = 0; i < bets.length; i++) {
value += bets[i].value;
}
return (bets.length, value);
}
event Finished(uint number, uint nextRoundTimestamp);
modifier transactionMustContainEther() {
if (msg.value == 0) throw;
_;
}
modifier bankMustBeAbleToPayForBetType(BetType betType) {
uint necessaryBalance = 0;
for (uint i = 0; i < bets.length; i++) {
necessaryBalance += getPayoutForType(bets[i].betType) * bets[i].value;
}
necessaryBalance += getPayoutForType(betType) * msg.value;
if (necessaryBalance > this.balance) throw;
_;
}
function getPayoutForType(BetType betType) constant returns(uint) {
if (betType == BetType.Single) return 35;
if (betType == BetType.Even || betType == BetType.Odd) return 2;
return 0;
}
function Roulette(uint interval) {
_interval = interval;
_creator = msg.sender;
nextRoundTimestamp = now + _interval;
}
function betSingle(uint number) public payable transactionMustContainEther() bankMustBeAbleToPayForBetType(BetType.Single) {
if (number > 36) throw;
bets.push(Bet({
betType: BetType.Single,
player: msg.sender,
number: number,
value: msg.value
}));
}
function betEven() public payable transactionMustContainEther() bankMustBeAbleToPayForBetType(BetType.Even) {
bets.push(Bet({
betType: BetType.Even,
player: msg.sender,
number: 0,
value: msg.value
}));
}
function betOdd() public payable transactionMustContainEther() bankMustBeAbleToPayForBetType(BetType.Odd) {
bets.push(Bet({
betType: BetType.Odd,
player: msg.sender,
number: 0,
value: msg.value
}));
}
function launch() public {
if (now < nextRoundTimestamp) throw;
uint number = uint(block.blockhash(block.number - 1)) % 37;
for (uint i = 0; i < bets.length; i++) {
bool won = false;
uint payout = 0;
if (bets[i].betType == BetType.Single) {
if (bets[i].number == number) {
won = true;
}
} else if (bets[i].betType == BetType.Even) {
if (number > 0 && number % 2 == 0) {
won = true;
}
} else if (bets[i].betType == BetType.Odd) {
if (number > 0 && number % 2 == 1) {
won = true;
}
}
if (won) {
if (bets[i].player.send(bets[i].value * getPayoutForType(bets[i].betType)))
throw;
}
}
uint thisRoundTimestamp = nextRoundTimestamp;
nextRoundTimestamp = thisRoundTimestamp + _interval;
lastRoundTimestamp = thisRoundTimestamp;
bets.length = 0;
Finished(number, nextRoundTimestamp);
}
function kill() public {
if (msg.sender != _creator) throw;
suicide(_creator);
}
}
@PascalDuval

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@PascalDuval PascalDuval commented Dec 10, 2017

"throw" is deprecated in favour of "revert()", "require()" and "assert()".
if (msg.value == 0) throw;
^---^

Says The Ethereum Wallet compiler...

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