Unity使用puerTS使用typescript

puerts即为普洱TS,腾讯开源的ts热更方案.项目github:https://github.com/Tencent/puerts
准备工作:Unity 2021.3.25f1
nodejs v16.13.1
1.下载puerts 地址:https://github.com/Tencent/puerts/releases 版本随便选.
解压好,将puerts文件夹放到assets/ 下.如图:
2.生成代码.
3.在assets下创建ts文件夹用来存放ts源码.文件夹名字随便起,我这里叫 TsProject.然后执行命令:

npm init -y
npm i typescript -D

创建tsconfig.json文件.这个主要是ts的配置.

{
    "compilerOptions": {
        "target": "esnext",
        "module": "commonjs",
        "sourceMap": true,
        "noImplicitAny": true,
        "typeRoots": [
            "../Puerts/Typing",
            "../Gen/Typing",
            "./node_modules/@types"
        ],
        "outDir": "output"
    }
}

package.json,这里主要是修改scripts指令.build与postbuild.

{
  "name": "tsproject",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "build": "tsc -p tsconfig.json",
    "postbuild": "node copyJsFile.js output ../Resources"
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "devDependencies": {
    "typescript": "^5.1.6"
  }
}

copyJsFile.js文件下载地址:https://github.com/chexiongsheng/puerts_unity_demo/blob/master/projects/0_Basic_Demo/TsProj/copyJsFile.js
重点来了,main.ts

import { System, UnityEngine } from 'csharp'
UnityEngine.Debug.Log('Hello World');
let obj: UnityEngine.GameObject = new UnityEngine.GameObject("testObject");
obj.transform.position = new UnityEngine.Vector3(10, 2, 23);

完成后:tsproject文件夹的样子是下面这样的:

现在开始编译ts.
使用package.json的scripts下的 build 指令.然后在使用 postbuild指令.
完成后可以看到Resources文件夹里有生成的代码.如果没创建Resources,需要手动创建一下.
4.c#中处理沟通js的逻辑.

Require.cs文件挂载到灯上或者其他物体上.

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using Puerts;
public class Require : MonoBehaviour
{
    JsEnv jsEnv;
    // Start is called before the first frame update
    void Start()
    {
        jsEnv = new JsEnv();
        jsEnv.Eval(@"require('main')");//这里会从Resources中加载对应的main.js.txt文件
    }

    // Update is called once per frame
    void Update()
    {

    }
    private void OnDestroy()
    {
        jsEnv.Dispose();
    }
}

然后开始运行编辑器:打出了log,并且生成了空物体.

其实还有一个更简单的测试js的脚本,不需要刚才的ts比较麻烦的创建.JsCallCs.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using Puerts;

public class JsCallCs : MonoBehaviour
{
    JsEnv jsEnv;
    // Start is called before the first frame update
    void Start()
    {
        jsEnv = new JsEnv();//下面是相当于拿到js的代码
        jsEnv.Eval(@"
           const CS=require('csharp');
           let gameObject=new CS.UnityEngine.GameObject('testObject');
           CS.UnityEngine.Debug.Log(gameObject.name);
        ");
    }

    // Update is called once per frame
    void Update()
    {

    }
    private void OnDestroy()
    {
        jsEnv.Dispose();
    }
}

另:此处还有一个坑,就是在copyJsFile.js中,编译ts的时候,在Resources下是main.js,但是c#需要的是main.js.txt文件,也就是一个字符串.会报错,错误代码58,找不到mian.解决办法:

放开此处的注释,然后在重新编译ts即可.