import "@stdlib/deploy"; import "@stdlib/ownable"; message BuyNumber { num: Int as uint16; } message AwardPrizes { winners: Cell; maxPlayers: Int? as uint16; numPrice: Int? as coins; devFee: Int? as uint8; prizes: map; } message CancelNumber { num: Int as uint16; } struct LotteryData { startTime: Int as uint32; currentNumOfPlayers: Int as uint16; currentPlayers: map; maxPlayers: Int as uint16; numPrice: Int as coins; devFee: Int as uint8; prizes: map; prizePool: Int as coins; } struct PlayersData { currentPlayers: map; currentNumOfPlayers: Int as uint16; } contract LotteryGame with Deployable, OwnableTransferable { owner: Address; currentPlayers: map; currentNumOfPlayers: Int as uint16; maxPlayers: Int as uint16; numPrice: Int as coins; startTime: Int as uint32; devFee: Int as uint8; prizes: map; // quantity -> num of winners init(maxPlayers: Int, numPrice: Int, owner: Address, devFee: Int, prizes: map) { self.owner = owner; self.startTime = now(); self.currentNumOfPlayers = 0; self.maxPlayers = maxPlayers; self.numPrice = numPrice; self.devFee = devFee; self.prizes = prizes; } receive() {} receive(msg: BuyNumber) { require(msg.num >= 0 && msg.num < self.maxPlayers, "Invalid number"); require(context().value >= self.numPrice, "Not enough funds to buy a ticket"); require(self.currentPlayers.get(msg.num) == null, "Number already taken"); self.currentPlayers.set(msg.num, sender()); self.currentNumOfPlayers += 1; } receive(msg: AwardPrizes) { self.requireOwner(); require(self.currentNumOfPlayers == self.maxPlayers, "Lottery is not full"); let winnerNums: Slice = msg.winners.beginParse(); let initialBalance: Int = myBalance()-context().value; foreach(quantity, winners in self.prizes) { let amountToAward: Int = initialBalance*quantity/100; repeat(winners) { let winnerNum: Int = winnerNums.loadUint(16); let winner: Address? = self.currentPlayers.get(winnerNum); if (winner != null) { send(SendParameters{ to: winner!!, value: amountToAward, }); } } } let devAmount: Int = initialBalance*self.devFee/100; send(SendParameters{ to: self.owner, value: devAmount, mode: SendRemainingValue }); // Reset the lottery self.currentPlayers = emptyMap(); self.currentNumOfPlayers = 0; self.startTime = now(); self.maxPlayers = msg.maxPlayers != null ? msg.maxPlayers!! : self.maxPlayers; self.numPrice = msg.numPrice != null ? msg.numPrice!! : self.numPrice; self.devFee = msg.devFee != null ? msg.devFee!! : self.devFee; self.prizes = msg.prizes; } receive(msg: CancelNumber) { require(self.startTime + 60 * 24 * 60 * 60 <= now(), "Lottery is not old enough to cancel"); require(self.currentNumOfPlayers < self.maxPlayers, "Lottery is full"); require(self.currentPlayers.get(msg.num) == sender(), "Only owner can cancel the number"); send(SendParameters{ to: sender(), value: (myBalance() - context().value)/self.currentNumOfPlayers, mode: SendRemainingValue }); self.currentPlayers.del(msg.num); self.currentNumOfPlayers -= 1; } get fun balance(): Int { return myBalance(); } get fun currentNumOfPlayers(): Int { return self.currentNumOfPlayers; } get fun currentPlayers(): map { return self.currentPlayers; } get fun maxPlayers(): String { return self.maxPlayers.toString(); } get fun numPrice(): Int { return self.numPrice; } get fun playerAddress(ticketNum: Int): Address? { return self.currentPlayers.get(ticketNum); } get fun playerNum(address: Address): Int? { foreach (key, value in self.currentPlayers) { if (value == address) { return key; } } return null; } get fun devFee(): Int { return self.devFee; } get fun data(): LotteryData { return LotteryData { startTime: self.startTime, currentNumOfPlayers: self.currentNumOfPlayers, currentPlayers: self.currentPlayers, maxPlayers: self.maxPlayers, numPrice: self.numPrice, devFee: self.devFee, prizes: self.prizes, prizePool: myBalance(), }; } get fun playersInfo(): PlayersData { return PlayersData { currentPlayers: self.currentPlayers, currentNumOfPlayers: self.currentNumOfPlayers }; } get fun prizes(): map { return self.prizes; } }

Contracts/wNNrM9QeE0yDig6d4LlH1q3Iz2jh3i/ZUcMw8njBfR8=

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