一：功能简介
- 任何人都可以发布彩票，自定义售价、奖金、终止日期等基础信息。
- 任何人都可以购买彩票并获得对应的购买凭证。
- 当彩票售罄或者超过售卖日期时，任何人都可以调用开奖函数，获奖信息将公示。
- 获奖者可凭票根兑奖，奖金将全额打入获奖者账户，与此同时，此彩票的收入将一分为二， 1 % \text 1\% 1% 将打入该彩票系统发布者账户，剩下的将打入该彩票发布者账户。
- 若中奖者长期不兑奖，提供回收奖金功能，奖金将打回该彩票发布者账户，而彩票收入依旧按照上述比例分配。
二：结构设计
2.1 彩票系统
维护发布的所有彩票信息，以及系统发布者的收入。
public struct LotterySystem has key {id: UID,lotteries: Table<ID, Lottery>,ls_income: Balance<SUI>,
}
2.2 彩票
维护彩票信息，包括剩余可售数量、终止日期、单价、总奖金数等。
public struct Lottery has store {lottery_name: String,price: u64,total_amount: u64,remaining_amount: u64,end_epoch: u64,bonus: Balance<SUI>,announcement: bool,winner_code: vector<u8>,income: Balance<SUI>,creater: address,
}
2.3 购买凭证
存储有所购买的彩票的唯一编码，以及对应的兑奖码。
public struct LotteryStub has key {id: UID,lottery_id: ID,code: vector<u8>,
}
2.4 一次性见证与事件
为了让系统管理员提现更安全，使用 O n e \mathit {One} One- T i m e \mathit {Time} Time- W i t n e s s \mathit {Witness} Witness 来生成唯一的Publisher并转移给他/她。
public struct SELF_SERVICE_LOTTERY has drop {}
为了让系统运行过程中的一些流程更加公开透明，在关键节点将触发事件信息进行公示。
public struct NewLotteryEvent has copy, drop {lottery_id: ID,lottery_name: String,price: u64,total_amount: u64,end_epoch: u64,bonus_value: u64,
}public struct WinEvent has copy, drop {lottery_name: String,winner_code: vector<u8>,
}public struct EndEvent has copy, drop {hint: String,
}
三：功能实现
3.1 初始化
生成唯一的Publisher，同时构造并共享LotterySystem。
fun init(otw: SELF_SERVICE_LOTTERY, ctx: &mut TxContext) {// generate Publisher and transfer itpackage::claim_and_keep(otw, ctx);// generate LotterySystem and share ittransfer::share_object(LotterySystem {id: object::new(ctx),lotteries: table::new<ID, Lottery>(ctx),ls_income: balance::zero(),});
}
3.2 系统构建者提现
Publisher只用作身份确认，所以用_来表示函数中并不会实际使用。
当且仅当收入不为零时，将所有收入转入个人账户。
entry fun withdraw(_: &Publisher, lottery_system: &mut LotterySystem, ctx: &mut TxContext) {// check coin valuelet amount = lottery_system.ls_income.value();assert!(amount > 0, ENotIncome);// withdraw incometransfer::public_transfer(coin::from_balance(lottery_system.ls_income.split(amount), ctx), ctx.sender());
}
3.3 创建彩票
根据是否自定义可售期限，提供了两个方法：create_lottery和create_lottery_with_epoch，它们都将接受彩票的基本信息来生成一套可供售卖的彩票，唯一的区别是可售期限是否为默认。一旦创建成功，将触发事件信息公示这一款全新的彩票的基础信息。
entry fun create_lottery(lottery_system: &mut LotterySystem, lottery_name: String, price: u64, total_amount: u64, bonus: Coin<SUI>, ctx: &mut TxContext) {// default continuous 15 epochcreate_lottery_with_epoch(lottery_system, lottery_name, price, total_amount, 15, bonus, ctx);
}entry fun create_lottery_with_epoch(lottery_system: &mut LotterySystem, lottery_name: String, price: u64, total_amount: u64, continuous_epoch: u64, bonus: Coin<SUI>, ctx: &mut TxContext) {// check bonus valueassert!(bonus.value() > 0, ENotBonus);// generate Lottery IDlet lottery_id = object::id_from_address(ctx.fresh_object_address());// generate Lotterylet lottery = Lottery {lottery_name,price,total_amount,remaining_amount: total_amount,end_epoch: ctx.epoch() + continuous_epoch,bonus: bonus.into_balance(),announcement: false,winner_code: vector<u8>[],income: balance::zero(),creater: ctx.sender(),};// emit eventevent::emit(NewLotteryEvent {lottery_id,lottery_name,price,total_amount,end_epoch: ctx.epoch() + continuous_epoch,bonus_value: lottery.bonus.value(),});// store itlottery_system.lotteries.add(lottery_id, lottery);
}
3.4 赎回奖金
当且仅当该套彩票一张未售，或者开奖后超过了兑奖期限时，可以通过此方法赎回奖金。
entry fun fedeem_bonus(lottery_system: &mut LotterySystem, lottery_id: ID, ctx: &mut TxContext) {// check lottery_idassert!(lottery_system.lotteries.contains(lottery_id), ENotCorrectLotteryID);// get Lotterylet mut lottery = lottery_system.lotteries.remove(lottery_id);// check sales status and epochassert!(lottery.total_amount == lottery.remaining_amount || ctx.epoch() > lottery.end_epoch + 15, ENotFedeem);calculate_fee(lottery_system, &mut lottery.income);destroy_lottery(lottery, ctx);
}fun calculate_fee(lottery_system: &mut LotterySystem, income: &mut Balance<SUI>) {// calc fee amount(1%)let amount = income.value() / 100;if (amount > 0) {lottery_system.ls_income.join(income.split(amount));};
}fun destroy_lottery(lottery: Lottery, ctx: &mut TxContext) {let Lottery {lottery_name: _,price: _,total_amount: _,remaining_amount: _,end_epoch: _,bonus,announcement: _,mut winner_code,mut income,creater,} = lottery;// destroy winner_codewhile (winner_code.length() > 0) {winner_code.pop_back();};winner_code.destroy_empty();// destroy bonusif (bonus.value() > 0) {income.join(bonus);} else {bonus.destroy_zero();};// transfer incometransfer::public_transfer(coin::from_balance(income, ctx), creater);
}
其中，calculate_fee的功能是计算将提供给系统管理者多少分成，destroy_lottery是摧毁一套彩票，将里面所包含的 S U I \mathit {SUI} SUI 转入个人账户。
在转账过程中，bonus和income不可能都为零，而且同时支持赎回奖金以及中奖者兑奖后的彩票收入提现。
3.5 开奖公告
当彩票售罄时将自动触发开奖，如果超过了购买日期，所有人也可以手动触发。
随机过程使用了hmac_sha3_256来生成一系列数字，并对这一系列数字进行运算得到第几个购买者为中奖者，再用同样的方法生成该顾客手上的兑奖码进行公示。
entry fun announcement(lottery_system: &mut LotterySystem, lottery_id: ID, ctx: &mut TxContext) {// check lottery_idassert!(lottery_system.lotteries.contains(lottery_id), ENotCorrectLotteryID);// get Lotterylet lottery = &mut lottery_system.lotteries[lottery_id];// check announcementassert!(!lottery.announcement, EHasBeenEnded);// check epochassert!(ctx.epoch() > lottery.end_epoch || lottery.remaining_amount == 0, ENotEnded);// sell nothingif (lottery.total_amount == lottery.remaining_amount) {fedeem_bonus(lottery_system, lottery_id, ctx);return};// random the winnerlottery.announcement = true;let index = calculate(lottery.total_amount, lottery.remaining_amount, ctx.fresh_object_address().to_bytes());lottery.winner_code = hmac_sha3_256(&bcs::to_bytes(&index), &object::id_to_bytes(&lottery_id));// emit eventevent::emit(WinEvent {lottery_name: lottery.lottery_name,winner_code: lottery.winner_code,});
}fun calculate(total: u64, remaining: u64, mut bytes: vector<u8>): u64 {let mut bytes1 = hmac_sha3_256(&bcs::to_bytes(&total), &bytes);bytes = hmac_sha3_256(&bcs::to_bytes(&remaining), &bytes1);// destroy bytes1while (bytes1.length() > 0) {bytes1.pop_back();};bytes1.destroy_empty();// calculatelet mut index = 1;let d = total - remaining;while (bytes.length() > 0) {let byte = bytes.pop_back() as u64;index = (index * (byte % d + 1)) % d + 1;};// destroy bytesbytes.destroy_empty();index
}
3.6 购买彩票
未售罄且未超过可售日期时，将根据你是第几个购买者来生成兑奖码并返回凭证，其中要关注传入的货币的处理，此外，如果你购买的是最后一张彩票，那么将自动开奖。
entry fun buy_lottery(lottery_system: &mut LotterySystem, lottery_id: ID, mut sui: Coin<SUI>, ctx: &mut TxContext) {// check lottery_idassert!(lottery_system.lotteries.contains(lottery_id), ENotCorrectLotteryID);// get Lotterylet lottery = &mut lottery_system.lotteries[lottery_id];// check announcementassert!(!lottery.announcement, EHasBeenEnded);// check sui valueassert!(sui.value() >= lottery.price, ENotEnoughCoin);// check epochif (ctx.epoch() > lottery.end_epoch || lottery.remaining_amount == 0) {announcement(lottery_system, lottery_id, ctx);event::emit(EndEvent {hint: string::utf8(b"The lottery ticket you purchased has ended!")});transfer::public_transfer(sui, ctx.sender());return};// deal with suiif (sui.value() == lottery.price) {lottery.income.join(sui.into_balance());} else {lottery.income.join(sui.split(lottery.price, ctx).into_balance());transfer::public_transfer(sui, ctx.sender());};// update remaining amount and generate codelottery.remaining_amount = lottery.remaining_amount - 1;let index = lottery.total_amount - lottery.remaining_amount;let code = hmac_sha3_256(&bcs::to_bytes(&index), &object::id_to_bytes(&lottery_id));// generate and transfer LotteryStubtransfer::transfer(LotteryStub {id: object::new(ctx),lottery_id,code,}, ctx.sender());// check sell outif (lottery.remaining_amount == 0) {announcement(lottery_system, lottery_id, ctx);};
}
3.7 兑奖
凭借彩票购买凭证进行兑奖，系统将进行一系列判断并给出事件信息进行通知，如果兑奖成功，则奖金自动转入获奖者个人账户。
entry fun redeem_lottery(lottery_system: &mut LotterySystem, lottery_stub: LotteryStub, ctx: &mut TxContext) {// get lottery idlet lottery_id = lottery_stub.lottery_id;if (!lottery_system.lotteries.contains(lottery_id)) {destroy_lottery_stub(lottery_stub);event::emit(EndEvent {hint: string::utf8(b"You have not won a prize or the redemption period has expired!")});return};// get lotterylet lottery = &mut lottery_system.lotteries[lottery_id];if (!lottery.announcement && (ctx.epoch() > lottery.end_epoch || lottery.remaining_amount == 0)) {announcement(lottery_system, lottery_id, ctx);event::emit(EndEvent {hint: string::utf8(b"The lottery has just been drawn, please check and redeem again!")});transfer::transfer(lottery_stub, ctx.sender());return};// check announcementassert!(lottery.announcement, ENotOpenLottery);// check winner codeif (lottery.winner_code == lottery_stub.code) {// Winnerlet amount = lottery.bonus.value();transfer::public_transfer(coin::from_balance(lottery.bonus.split(amount), ctx), ctx.sender());// calculate_fee(lottery_system, &mut lottery.income);// calc fee amount(1%)let amount = lottery.income.value() / 100;if (amount > 0) {lottery_system.ls_income.join(lottery.income.split(amount));};destroy_lottery(lottery_system.lotteries.remove(lottery_id), ctx);} else {// Loserevent::emit(EndEvent {hint: string::utf8(b"Unfortunately, the lottery you purchased did not win a prize!")});};destroy_lottery_stub(lottery_stub);
}
四：部署上链及简单测试
4.1 发布
- 运行命令
sui client publish --gas-budget 100000000
- 重要输出
╭─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╮
│ Object Changes │
├─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┤
│ Created Objects: │
│ ┌── │
│ │ ObjectID: 0x469b2b4e2c59821d831e4726a73a74c1e117b80383eeae2041cf9b4ea242c0be │
│ │ Sender: 0x9e4092b6a894e6b168aa1c6c009f5c1c1fcb83fb95e5aa39144e1d2be4ee0d67 │
│ │ Owner: Account Address ( 0x9e4092b6a894e6b168aa1c6c009f5c1c1fcb83fb95e5aa39144e1d2be4ee0d67 ) │
│ │ ObjectType: 0x2::package::Publisher │
│ │ Version: 28132105 │
│ │ Digest: H9s7atWdJs4vG7YLTyFvUHqkMnBXQ1rQ2gTBsNKgfjPj │
│ └── │
│ ┌── │
│ │ ObjectID: 0xdb674c063a7c4e3270d6b558adf3feb333da3498c044801d3d4680361ad077f1 │
│ │ Sender: 0x9e4092b6a894e6b168aa1c6c009f5c1c1fcb83fb95e5aa39144e1d2be4ee0d67 │
│ │ Owner: Account Address ( 0x9e4092b6a894e6b168aa1c6c009f5c1c1fcb83fb95e5aa39144e1d2be4ee0d67 ) │
│ │ ObjectType: 0x2::package::UpgradeCap │
│ │ Version: 28132105 │
│ │ Digest: 9cjzK99qYszLtcLLYPN4t1GdVuWZ6piips62AkLP7QLq │
│ └── │
│ ┌── │
│ │ ObjectID: 0xf430c82e627840a1c98439565974de87c1078b4be5014843f69d2702c1ae270f │
│ │ Sender: 0x9e4092b6a894e6b168aa1c6c009f5c1c1fcb83fb95e5aa39144e1d2be4ee0d67 │
│ │ Owner: Shared( 28132105 ) │
│ │ ObjectType: 0xd57f516962ac634529d9a8005812462bce04cc89b457b566232dd818ab2aa9bd::self_service_lottery::LotterySystem │
│ │ Version: 28132105 │
│ │ Digest: AxJJHX3tsPP3QCLbduZkGfZbx9vxtkHRpv8YSbMGYaSz │
│ └── │
│ Mutated Objects: │
│ ┌── │
│ │ ObjectID: 0x01676de212960b0689245914312ac6be3b4d5cffa0cae91ef527441b894f746a │
│ │ Sender: 0x9e4092b6a894e6b168aa1c6c009f5c1c1fcb83fb95e5aa39144e1d2be4ee0d67 │
│ │ Owner: Account Address ( 0x9e4092b6a894e6b168aa1c6c009f5c1c1fcb83fb95e5aa39144e1d2be4ee0d67 ) │
│ │ ObjectType: 0x2::coin::Coin<0x2::sui::SUI> │
│ │ Version: 28132105 │
│ │ Digest: 4DLokvD6fC9WndtSz1eqDsp1xd9sBaxi5oLTXB9ZzBpk │
│ └── │
│ Published Objects: │
│ ┌── │
│ │ PackageID: 0xd57f516962ac634529d9a8005812462bce04cc89b457b566232dd818ab2aa9bd │
│ │ Version: 1 │
│ │ Digest: 8MZ5RzHENjhzxKasWX4Ut1aHRFvFvjTHssSGurqfojTv │
│ │ Modules: self_service_lottery │
│ └── │
╰─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯
- 设置变量
export PACKAGE=0xd57f516962ac634529d9a8005812462bce04cc89b457b566232dd818ab2aa9bd
export PUBLISHER=0x469b2b4e2c59821d831e4726a73a74c1e117b80383eeae2041cf9b4ea242c0be
export LOTTERYSYSTEM=0xf430c82e627840a1c98439565974de87c1078b4be5014843f69d2702c1ae270fsui client gas
# output:
╭────────────────────────────────────────────────────────────────────┬────────────────────┬──────────────────╮
│ gasCoinId │ mistBalance (MIST) │ suiBalance (SUI) │
├────────────────────────────────────────────────────────────────────┼────────────────────┼──────────────────┤
│ 0x01676de212960b0689245914312ac6be3b4d5cffa0cae91ef527441b894f746a │ 2781685426 │ 2.78 │
│ 0x4138ff0b0ff27eeb46fcfb24da66059bb013e0bc05e39f47eea9dd969cff4d67 │ 1000000000 │ 1.00 │
│ 0x9b6a8d50f03bd3957e6fb5248bbc4e530f327fc4e42c8dfb27eafb2e9f45f093 │ 1000000000 │ 1.00 │
╰────────────────────────────────────────────────────────────────────┴────────────────────┴──────────────────╯export COIN=0x4138ff0b0ff27eeb46fcfb24da66059bb013e0bc05e39f47eea9dd969cff4d67
4.2 创建彩票
- 运行命令
sui client call --package $PACKAGE --module self_service_lottery --function create_lottery --args $LOTTERYSYSTEM "TestLottery" 500000000 2 $COIN --gas-budget 100000000
- 重要输出
╭─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╮
│ Transaction Block Events │
├─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┤
│ ┌── │
│ │ EventID: 7z4J6fGGdhEXj621mezkKwcJs1Qun4smHRaTqc9Uv3cF:0 │
│ │ PackageID: 0xd57f516962ac634529d9a8005812462bce04cc89b457b566232dd818ab2aa9bd │
│ │ Transaction Module: self_service_lottery │
│ │ Sender: 0x9e4092b6a894e6b168aa1c6c009f5c1c1fcb83fb95e5aa39144e1d2be4ee0d67 │
│ │ EventType: 0xd57f516962ac634529d9a8005812462bce04cc89b457b566232dd818ab2aa9bd::self_service_lottery::NewLotteryEvent │
│ │ ParsedJSON: │
│ │ ┌──────────────┬────────────────────────────────────────────────────────────────────┐ │
│ │ │ bonus_value │ 1000000000 │ │
│ │ ├──────────────┼────────────────────────────────────────────────────────────────────┤ │
│ │ │ end_epoch │ 397 │ │
│ │ ├──────────────┼────────────────────────────────────────────────────────────────────┤ │
│ │ │ lottery_id │ 0x4e18914e22f53858dff84c0d1496c8b7df70ff6015b3d7a4a673b8aa690c43b6 │ │
│ │ ├──────────────┼────────────────────────────────────────────────────────────────────┤ │
│ │ │ lottery_name │ TestLottery │ │
│ │ ├──────────────┼────────────────────────────────────────────────────────────────────┤ │
│ │ │ price │ 500000000 │ │
│ │ ├──────────────┼────────────────────────────────────────────────────────────────────┤ │
│ │ │ total_amount │ 2 │ │
│ │ └──────────────┴────────────────────────────────────────────────────────────────────┘ │
│ └── │
╰─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯
- 设置变量
export LOTTERY=0x4e18914e22f53858dff84c0d1496c8b7df70ff6015b3d7a4a673b8aa690c43b6sui client gas
# output:
╭────────────────────────────────────────────────────────────────────┬────────────────────┬──────────────────╮
│ gasCoinId │ mistBalance (MIST) │ suiBalance (SUI) │
├────────────────────────────────────────────────────────────────────┼────────────────────┼──────────────────┤
│ 0x01676de212960b0689245914312ac6be3b4d5cffa0cae91ef527441b894f746a │ 2778534778 │ 2.77 │
│ 0x9b6a8d50f03bd3957e6fb5248bbc4e530f327fc4e42c8dfb27eafb2e9f45f093 │ 1000000000 │ 1.00 │
╰────────────────────────────────────────────────────────────────────┴────────────────────┴──────────────────╯export COIN=0x9b6a8d50f03bd3957e6fb5248bbc4e530f327fc4e42c8dfb27eafb2e9f45f093
4.3 购买彩票
- 运行命令
sui client call --package $PACKAGE --module self_service_lottery --function buy_lottery --args $LOTTERYSYSTEM $LOTTERY $COIN --gas-budget 100000000
- 重要输出
╭───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╮
│ Object Changes │
├───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┤
│ Created Objects: │
│ ┌── │
│ │ ObjectID: 0x5a482ff5935840c89728184c68c478bead87a866f5b6bfdbbbf5da96f65c7dc3 │
│ │ Sender: 0x9e4092b6a894e6b168aa1c6c009f5c1c1fcb83fb95e5aa39144e1d2be4ee0d67 │
│ │ Owner: Account Address ( 0x9e4092b6a894e6b168aa1c6c009f5c1c1fcb83fb95e5aa39144e1d2be4ee0d67 ) │
│ │ ObjectType: 0xd57f516962ac634529d9a8005812462bce04cc89b457b566232dd818ab2aa9bd::self_service_lottery::LotteryStub │
│ │ Version: 28132107 │
│ │ Digest: DpT2d3oC4iJzqUFbWg93GZNKm1hVDMekWoh5jCos9cCp │
│ └── │
│ Mutated Objects: │
│ ┌── │
│ │ ObjectID: 0x01676de212960b0689245914312ac6be3b4d5cffa0cae91ef527441b894f746a │
│ │ Sender: 0x9e4092b6a894e6b168aa1c6c009f5c1c1fcb83fb95e5aa39144e1d2be4ee0d67 │
│ │ Owner: Account Address ( 0x9e4092b6a894e6b168aa1c6c009f5c1c1fcb83fb95e5aa39144e1d2be4ee0d67 ) │
│ │ ObjectType: 0x2::coin::Coin<0x2::sui::SUI> │
│ │ Version: 28132107 │
│ │ Digest: 2M5DBUCvu9hfyGXZunSqdiE6VrBHK7Q6i6Yeq8SC1rRz │
│ └── │
│ ┌── │
│ │ ObjectID: 0x33ac04798ba0c6fca92804d42f579baad53bae331a097bbde809c4af2a0a33ae │
│ │ Sender: 0x9e4092b6a894e6b168aa1c6c009f5c1c1fcb83fb95e5aa39144e1d2be4ee0d67 │
│ │ Owner: Object ID: ( 0x2643e8a8fe0b861ee1d8fad4cd5ddeffd40df3792303975ce6847a9108dbbdd8 ) │
│ │ ObjectType: 0x2::dynamic_field::Field<0x2::object::ID, 0xd57f516962ac634529d9a8005812462bce04cc89b457b566232dd818ab2aa9bd::self_service_lottery::Lottery> │
│ │ Version: 28132107 │
│ │ Digest: 8uVWwgUJMG1LxWdhpTUXYxdGGdwTRfpKxPfTvU2Vs5MK │
│ └── │
│ ┌── │
│ │ ObjectID: 0x9b6a8d50f03bd3957e6fb5248bbc4e530f327fc4e42c8dfb27eafb2e9f45f093 │
│ │ Sender: 0x9e4092b6a894e6b168aa1c6c009f5c1c1fcb83fb95e5aa39144e1d2be4ee0d67 │
│ │ Owner: Account Address ( 0x9e4092b6a894e6b168aa1c6c009f5c1c1fcb83fb95e5aa39144e1d2be4ee0d67 ) │
│ │ ObjectType: 0x2::coin::Coin<0x2::sui::SUI> │
│ │ Version: 28132107 │
│ │ Digest: 56EMyGyKoGSKEhcyb7EHF4AtMQ1kRGSw3osBNRQwsPh │
│ └── │
│ ┌── │
│ │ ObjectID: 0xf430c82e627840a1c98439565974de87c1078b4be5014843f69d2702c1ae270f │
│ │ Sender: 0x9e4092b6a894e6b168aa1c6c009f5c1c1fcb83fb95e5aa39144e1d2be4ee0d67 │
│ │ Owner: Shared( 28132105 ) │
│ │ ObjectType: 0xd57f516962ac634529d9a8005812462bce04cc89b457b566232dd818ab2aa9bd::self_service_lottery::LotterySystem │
│ │ Version: 28132107 │
│ │ Digest: BdNzqt5Uimo7dQtp5UDjh371YuUR9WS1JN5AZrZMGymX │
│ └── │
╰───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯
- 设置变量
export LOTTERYSTUB1=0x5a482ff5935840c89728184c68c478bead87a866f5b6bfdbbbf5da96f65c7dc3
类似的，再购买一张，并设置export LOTTERYSTUB2=0xdd5b6a281e34104c3a9b3671ebe8fce770b68d75222a0b8844214972e9435ab5
此时由于彩票买完，自动触发了开奖，可以从 E v e n t \mathit {Event} Event 信息当中看见开奖信息：
╭──────────────────────────────────────────────────────────────────────────────────────────────────────────────────╮
│ Transaction Block Events │
├──────────────────────────────────────────────────────────────────────────────────────────────────────────────────┤
│ ┌── │
│ │ EventID: FC812jAiEHLaNTtS66WRS9DQrxnGqa1bR81y7AHknNLh:0 │
│ │ PackageID: 0xd57f516962ac634529d9a8005812462bce04cc89b457b566232dd818ab2aa9bd │
│ │ Transaction Module: self_service_lottery │
│ │ Sender: 0x9e4092b6a894e6b168aa1c6c009f5c1c1fcb83fb95e5aa39144e1d2be4ee0d67 │
│ │ EventType: 0xd57f516962ac634529d9a8005812462bce04cc89b457b566232dd818ab2aa9bd::self_service_lottery::WinEvent │
│ │ ParsedJSON: │
│ │ ┌──────────────┬──────────────────────────────────────────────┐ │
│ │ │ lottery_name │ TestLottery │ │
│ │ ├──────────────┼──────────────────────────────────────────────┤ │
│ │ │ winner_code │ rbaG/MO6rqDo0Ad/lK79EACIDTbKMhb6bSL3MkllhRc= │ │
│ │ └──────────────┴──────────────────────────────────────────────┘ │
│ └── │
╰──────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯
4.4 兑奖
- 运行命令
sui client call --package $PACKAGE --module self_service_lottery --function redeem_lottery --args $LOTTERYSYSTEM $LOTTERYSTUB1 --gas-budget 100000000
没有触发事件信息，但是通过 O b j e c t C h a n g e s \mathit {Object\ Changes} Object Changes 可以发现有 S U I \mathit {SUI} SUI 变动，于是键入sui client gas进行验证：
╭────────────────────────────────────────────────────────────────────┬────────────────────┬──────────────────╮
│ gasCoinId │ mistBalance (MIST) │ suiBalance (SUI) │
├────────────────────────────────────────────────────────────────────┼────────────────────┼──────────────────┤
│ 0x01676de212960b0689245914312ac6be3b4d5cffa0cae91ef527441b894f746a │ 2775506430 │ 2.77 │
│ 0x9bb06c48c6173af94ba38f41a7ddba227451abfdb4356e68851ba8497cfeca05 │ 1000000000 │ 1.00 │
│ 0xe9a9be9af022aa5846d4549a6d97200dcebe576561beaa025a51cdbd84e9c361 │ 990000000 │ 0.99 │
╰────────────────────────────────────────────────────────────────────┴────────────────────┴──────────────────╯
此时，如果再用第二个彩票凭证兑奖，会触发事件提醒，同时，凭证将被摧毁：
╭──────────────────────────────────────────────────────────────────────────────────────────────────────────────────╮
│ Transaction Block Events │
├──────────────────────────────────────────────────────────────────────────────────────────────────────────────────┤
│ ┌── │
│ │ EventID: 7eW7EgHkvtuhX6U2JGN3DjsedATNatcVpfttmFNNXD3:0 │
│ │ PackageID: 0xd57f516962ac634529d9a8005812462bce04cc89b457b566232dd818ab2aa9bd │
│ │ Transaction Module: self_service_lottery │
│ │ Sender: 0x9e4092b6a894e6b168aa1c6c009f5c1c1fcb83fb95e5aa39144e1d2be4ee0d67 │
│ │ EventType: 0xd57f516962ac634529d9a8005812462bce04cc89b457b566232dd818ab2aa9bd::self_service_lottery::EndEvent │
│ │ ParsedJSON: │
│ │ ┌──────┬────────────────────────────────────────────────────────────────┐ │
│ │ │ hint │ You have not won a prize or the redemption period has expired! │ │
│ │ └──────┴────────────────────────────────────────────────────────────────┘ │
│ └── │
╰──────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯
4.5 提现
- 运行命令
sui client call --package $PACKAGE --module self_service_lottery --function withdraw --args $PUBLISHER $LOTTERYSYSTEM --gas-budget 100000000
- 验证
sui client gas# output:
╭────────────────────────────────────────────────────────────────────┬────────────────────┬──────────────────╮
│ gasCoinId │ mistBalance (MIST) │ suiBalance (SUI) │
├────────────────────────────────────────────────────────────────────┼────────────────────┼──────────────────┤
│ 0x01676de212960b0689245914312ac6be3b4d5cffa0cae91ef527441b894f746a │ 2774346382 │ 2.77 │
│ 0x9bb06c48c6173af94ba38f41a7ddba227451abfdb4356e68851ba8497cfeca05 │ 1000000000 │ 1.00 │
│ 0xd107cdb05b93da5262fc2b5b9f03f9aa60539555303a1cf2ee935f1087787bee │ 10000000 │ 0.01 │
│ 0xe9a9be9af022aa5846d4549a6d97200dcebe576561beaa025a51cdbd84e9c361 │ 990000000 │ 0.99 │
╰────────────────────────────────────────────────────────────────────┴────────────────────┴──────────────────╯
通过简单计算可以发现，满足事先的预期。
五：加入组织，共同进步！
- Sui 中文开发群(TG)
- M o v e \mathit{Move} Move 语言学习交流群: 79489587
