JS/C# Interop

Example code of how to interact between JS and C# (taken from PuerTS GitHub)

https://github.com/chexiongsheng/puerts_unity_demo/blob/master/projects/0_Basic_Demo/Assets/Examples/05_Typescript/Resources/QuickStart.mjs

//部署:npm run build
import './ExtensionDecl.mjs';
const { $ref, $unref, $generic, $promise, $typeof } = puer;
//静态函数
CS.UnityEngine.Debug.Log('hello world');
//对象构造
let obj = new CS.PuertsTest.DerivedClass();
//实例成员访问
obj.BMFunc(); //父类方法
obj.DMFunc(CS.PuertsTest.MyEnum.E1); //子类方法
console.log(obj.BMF, obj.DMF);
obj.BMF = 10; //父类属性
obj.DMF = 30; //子类属性
console.log(obj.BMF, obj.DMF);
//静态成员
console.log(CS.PuertsTest.BaseClass.BSF, CS.PuertsTest.DerivedClass.DSF, CS.PuertsTest.DerivedClass.BSF);
//委托，事件
//如果你后续不需要-=，可以像这样直接传函数当delegate
obj.MyCallback = msg => console.log("do not need remove, msg=" + msg);
//通过new构建的delegate，后续可以拿这个引用去-=
let delegate = new CS.PuertsTest.MyCallback(msg => console.log('can be removed, msg=' + msg));
//由于ts不支持操作符重载，Delegate.Combine相当于C#里头的obj.myCallback += delegate;
obj.MyCallback = CS.System.Delegate.Combine(obj.MyCallback, delegate);
obj.Trigger();
//Delegate.Remove相当于C#里头的obj.myCallback -= delegate;
obj.MyCallback = CS.System.Delegate.Remove(obj.MyCallback, delegate);
obj.Trigger();
//事件
obj.add_MyEvent(delegate);
obj.Trigger();
obj.remove_MyEvent(delegate);
obj.Trigger();
//静态事件
CS.PuertsTest.DerivedClass.add_MyStaticEvent(delegate);
obj.Trigger();
CS.PuertsTest.DerivedClass.remove_MyStaticEvent(delegate);
obj.Trigger();
//可变参数
obj.ParamsFunc(1024, 'haha', 'hehe', 'heihei');
//in out 参数
let p1 = $ref(1);
let p2 = $ref(10);
let ret = obj.InOutArgFunc(100, p1, p2);
console.log('ret=' + ret + ', out=' + $unref(p1) + ', ref=' + $unref(p2));
//泛型
//先通过$generic实例化泛型参数
let List = $generic(CS.System.Collections.Generic.List$1, CS.System.Int32); //$generic调用性能不会太好，同样泛型参数建议整个工程，至少一个文件内只做一次
let Dictionary = $generic(CS.System.Collections.Generic.Dictionary$2, CS.System.String, List);
let lst = new List();
lst.Add(1);
lst.Add(0);
lst.Add(2);
lst.Add(4);
obj.PrintList(lst);
let dic = new Dictionary();
dic.Add("aaa", lst);
obj.PrintList(dic.get_Item("aaa"))
//泛型数组 ts的话需加上 as CS.System.Array$1<string>,配置PuertsConfig BINDING中请添加 typeof(Array),生成对应的index.d.ts,否则CreateInstance会报错
let Arr = CS.System.Array.CreateInstance(puer.$typeof(CS.System.String), 3);
Arr.SetValue("aaa", 0);
Arr.SetValue("bbb", 1);
Arr.SetValue("ccc", 2);
obj.PrintArray(Arr);
//arraybuffer
let ab = obj.GetAb(5);
let u8a0 = new Uint8Array(ab);
console.log(obj.SumOfAb(u8a0));
let u8a1 = new Uint8Array(2);
u8a1[0] = 123;
u8a1[1] = 101;
console.log(obj.SumOfAb(u8a1));
//引擎api
let go = new CS.UnityEngine.GameObject("testObject");
go.AddComponent($typeof(CS.UnityEngine.ParticleSystem));
go.transform.position = new CS.UnityEngine.Vector3(7, 8, 9);

//extension methods
obj.PlainExtension();
obj.Extension1();
obj.Extension2(go);
let obj1 = new CS.PuertsTest.BaseClass1();
obj.Extension2(obj1);