Updating READMEs to add info on WebGL builds (#83)

README.md

@@ -15,9 +15,9 @@ Collection of Internet Computer Protocol (ICP) libraries for .NET/Blazor/Unity
 
 # 🎮 Unity Integration
 
-Note: WebGL/IL2CPP is not supported YET due to an issue with IL2CPP, working on it
-- Download latest binaries for the agent: https://github.com/edjCase/ICP.NET/releases
-- Extract `.zip` to a plugins folder in your Unity Assets: `Assets/plugins/ICP.NET/`
+- Download latest `agent.unitypackage` from: https://github.com/edjCase/ICP.NET/releases
+- Import `agent.unitypackage` into your unity project
+- If using WebGL, follow the additional WebGL instructions in the [Agent Docs](src/Agent/README.md)
 - If generating a client (see below), place the generated files into the scripts folder: `Assets/scripts/MyClient`
 - Start coding 💻
 

src/Agent/README.md

@@ -166,4 +166,24 @@ byte[] privateKey = ...;
 DelegationChain chain = ...;
 var innerIdentity = new Ed25519Identity(publicKeyBytes, privateKey);
 var delegatedIdentity = new DelegationIdentity(innerIdentity, chain);
-```
+```
+
+# WebGL Builds
+Due to how WebGL works by converting C# to JS/WASM using IL2CPP there are a few additional steps to avoid
+incompatibilities. 
+- UnityHttpClient - The .NET `HttpClient` does not work in many cases, so `UnityHttpClient` is added via Unity C# script.
+    ```cs
+    var client = new UnityHttpClient();
+    var agent = new HttpAgent(client);
+    ```
+- WebGlBlsCryptography - The BLS signature verification relies on a 3rd party library and due to that library not being directly compatible with the WebGL builds, `WebGlBlsCryptography` needs to be used instead of the default `WasmBlsCryptography` class.
+
+    ```cs
+    var bls = new WebGlBlsCrytography();
+    var agent = new HttpAgent(client, bls: bls);
+    ```
+    In addition, the `bls.js` file located in `{icp.net base dir}/UnityAssets/` needs to be included in the Unity project and referenced by the HTML page
+    ```html
+    <script src="{path_to_dir}/bls.js"/>
+    ```
+    That will load in the JS bls library that will be referenced by the `Bls.jslib` that is included in the ICP.NET unity package