【财富密码】analog 部分功能上分教程

该项目任务繁多且复杂,目前测试网卡加bug多多，偏向技术开发人员。有能力的或看好它的撸，不感兴趣的忽略。。。

1、GMP相关(目前测试网验证还存在bug,可以等稳定了再试)

原作者教程

https://medium.com/[@4mo4ever](https://weibo.com/n/4mo4ever)/analog-gmp-quests%E6%95%99%E7%A8%8B-cc327a50af31

remix：emix.ethereum.org/

①打开remix在线合约部署编译平台，打开默认项目，点开项目中的contracts目录，鼠标右键随便创建一个.sol的空白文件

②复制以下代码到创建的文件中

// SPDX-License-Identifier: MITpragma solidity ^0.8.0;interface IGmpReceiver {/*** @dev Handles the receipt of a single GMP message.* The contract must verify the msg.sender, it must be the Gateway Contract address.** @param id The EIP-712 hash of the message payload, used as GMP unique identifier* @param network The chain_id of the source chain that send the message* @param source The pubkey/address which sent the GMP message* @param payload The message payload with no specified format* @return 32-byte result, which will be stored together with the GMP message*/function onGmpReceived(bytes32 id, uint128 network, bytes32 source, bytes calldata payload)externalpayablereturns (bytes32);}contract Counter is IGmpReceiver {// sepolia 0xB5D83c2436Ad54046d57Cd48c00D619D702F3814// shibuya 0xF871c929bE8Cd8382148C69053cE5ED1a9593EA7address private immutable _gateway;uint256 public number;constructor(address gateway) {_gateway = gateway;}function onGmpReceived(bytes32, uint128, bytes32, bytes calldata) external payable override returns (bytes32) {require(msg.sender == _gateway, "unauthorized");number++;return bytes32(number);}}