Call C# from Javascript in Tiny

So I have a method defined in a js~ as I've seen instructed on the forums, in order to call some javascript from my C#.
Now, that method does an XmlHttpRequest and that request finishes at a later time, and calls a callback.

So my question is, how can I call back into C# with the result of that request? How do you, in general, call C# from javascript in Tiny?

Thanks

 

Discovered dynCall_* set of methods in emscripten that can be used to call back into c# from what I understand, but when I use that to call my static c# method, it gives me.

Code (CSharp):

1. No reverse pinvoke wrapper exists for method: 'System.Void LMLib.Gameplay.DragAndDropSystem::CallbackTest(System.Int32)' because it does not have the [MonoPInvokeCallback] attribute.

I can't add MonoPInvokeCallback attribute on my method because that's part of UnityEngine.Core.

So, how do I call back into C# from a wasm build in Tiny?

 

How did you get it to build? I made a js~ folderinside my Assets, put my js file:

Code (CSharp):

1. mergeInto(LibraryManager.library, {
2.     MultiplyNumbers: function (p1, p2){
3.         alert("CALLED");
4.         return p1*p2;
5.     }
6.    
7.     });

Then in my system i have

Code (CSharp):

1. using Unity.Entities;
2. using UnityEngine;
3. using System.Runtime.InteropServices;
4. public class JavaCallTest : ComponentSystem
5. {
6.     [DllImport("__Internal")]
7.     private static extern int MultiplyNumbers(int x, int y);
8.     protected override void OnStartRunning()
9.     {
10.         Debug.Log(MultiplyNumbers(4, 8)); // returns 32
11.     }
12.     protected override void OnUpdate()
13.     {
14.     }
15. }
16.  

But every time i try to build with the [DllImport("__Internal")] it fails.
(Build Wasm-Tiny3D failed in BuildStepRunBee after 27.03s.
warning: unexpected return type i8* in call to 'SetTempSliceHandle', should be void)

Also about calling from js to unity:
Does this mean that SendMessage is no longer an option?

 

I think it needs to be in the same folder with your main asmdef, if I remember correctly.

 

I also got it working yesterday by putting in the same dir as where the asmdef is. Tested with Tiny3D and a little test system that have put there, for getting data over http to Tiny in a web build. Thanks for the helps!

 

So is the main asmdef Tiny3D.asmdef file? because I placed my jslib file there, sadly it didn't compile. Anyone has any ideas?

 

Needs to be .js , not .jslib like in regular Unity

 

Thanks! Got it to work that way.