80 lines
2.2 KiB
TypeScript
80 lines
2.2 KiB
TypeScript
import Web3 from 'web3/dist/web3.min.js';
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import {ContractABI} from "db://assets/scripts/WalletSDK/ABI";
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/**
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* Predefined variables
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* Name = WalletUtils
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* DateTime = Fri Aug 26 2022 18:07:14 GMT+0800 (中国标准时间)
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* Author = 阿离我的
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* FileBasename = WalletUtils.ts
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* FileBasenameNoExtension = WalletUtils
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* URL = db://assets/scripts/WalletSdk/WalletUtils.ts
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* ManualUrl = https://docs.cocos.com/creator/3.4/manual/zh/
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*
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*/
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// 钱包sdk类型
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export enum WalletSdkType {
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Web, // 网页端 mobile pc
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Native, // 原生端 android ios
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}
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// 钱包连接类型
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export enum WalletConnectType {
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Api, // api连接
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QRCode, // 二维码连接
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}
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// 钱包类型
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export enum WalletType {
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MetaMask,
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TronLink,
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IMToken,
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TokenPocket,
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}
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export interface IWalletSdk {
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init(): Promise<void>;
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connect(): any;
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customSignRequest(): any;
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customRequest(from: string, contractAddress: string, fnName: string, ...args: any[]): any;
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}
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const web3 = new Web3();
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// 补齐64位，不够前面用0补齐
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function addPreZero(num: string) {
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return num.toString().padStart(64, '0');
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}
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/**
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* 发起合约请求
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* @param from 调用者的地址
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* @param contractAddress 合约地址
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* @param fnName ABI内type为function的可调用函数名
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* @param args 参数列表
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*/
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export function createRequestData(from: string, contractAddress: string, fnName: string, ...args: any[]) {
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// 查找对应方法并获取对应的函数签名
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const functionInfo = ContractABI.find((item) => item.type === 'function' && item.name === fnName);
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// @ts-ignore
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const functionSignature = web3.eth.abi.encodeFunctionSignature(functionInfo);
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// 发起请求
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return {
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// 注意这里是代币合约地址
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from,
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to: contractAddress,
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// 调用合约转账value这里留空
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value: "",
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// data的组成，由：0x + 要调用的合约方法的function signature + 要传递的方法参数，每个参数都为64位(去掉前面0x，然后补齐为64位)
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data: functionSignature + args.map((v) => addPreZero(web3.utils.toHex(v).substring(2))).join(''),
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};
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}
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