Deployed a Casino smartcontract on XinFin XDC Network, and it is very easy and cheap to deploy on XinFin Network. The stable network where the new generation Developers should deploy their #DAPPS and #SmartContracts.
Check the Solidity Contract for Casino:
pragma solidity ^0.4.18;
contract CasinoRoulette {
enum BetType { Color, Number }
struct Bet {
address user;
uint amount;
BetType betType;
uint block;
// @prop choice: interpretation is based on BetType
// BetType.Color: 0=black, 1=red
// BetType.Number: -1=00, 0-36 for individual numbers
int choice;
}
uint public constant NUM_POCKETS = 38;
// RED_NUMBERS and BLACK_NUMBERS are constant, but
// Solidity doesn't support array constants yet so
// we use storage arrays instead
uint8[18] public RED_NUMBERS = [
1, 3, 5, 7, 9, 12,
14, 16, 18, 19, 21, 23,
25, 27, 30, 32, 34, 36
];
uint8[18] public BLACK_NUMBERS = [
2, 4, 6, 8, 10, 11,
13, 15, 17, 20, 22, 24,
26, 28, 29, 31, 33, 35
];
// maps wheel numbers to colors
mapping(int => int) public COLORS;
address public owner;
uint public counter = 0;
mapping(uint => Bet) public bets;
event BetPlaced(address user, uint amount, BetType betType, uint block, int choice);
event Spin(uint id, int landed);
function CasinoRoulette () public {
owner = msg.sender;
for (uint i=0; i < 18; i++) {
COLORS[RED_NUMBERS[i]] = 1;
}
}
function wager (BetType betType, int choice) payable public {
require(msg.value > 0);
if (betType == BetType.Color)
require(choice == 0 || choice == 1);
else
require(choice >= -1 && choice <= 36);
counter++;
bets[counter] = Bet(msg.sender, msg.value, betType, block.number + 3, choice);
BetPlaced(msg.sender, msg.value, betType, block.number + 3, choice);
}
function spin (uint id) public {
Bet storage bet = bets[id];
require(msg.sender == bet.user);
require(block.number >= bet.block);
require(block.number <= bet.block + 255);
bytes32 random = keccak256(block.blockhash(bet.block), id);
int landed = int(uint(random) % NUM_POCKETS) - 1;
if (bet.betType == BetType.Color) {
if (landed > 0 && COLORS[landed] == bet.choice)
msg.sender.transfer(bet.amount * 2);
}
else if (bet.betType == BetType.Number) {
if (landed == bet.choice)
msg.sender.transfer(bet.amount * 35);
}
delete bets[id];
Spin(id, landed);
}
function fund () public payable {}
function kill () public {
require(msg.sender == owner);
selfdestruct(owner);
}
}
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