如果使用 Socket.IO，是否可以为 HTML 编译 LibGDX 游戏？如果是这样，怎么做？

Question

来自what I've seen，它似乎在我的游戏中使用了socket.io并让它运行，我需要做很多工作来为Java和其他目前不属于我专业领域的东西包装JS代码。

我应该尝试学习并执行这个建议的解决方案吗？它应该默认工作而我只是没有做对吗？有没有 Socket.IO 的替代方案，我可以使用和实现而无需更改太多代码库？

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如果您想要更具体的问题，在任务“draftCompileGwt”期间会发生以下错误：

> Task :html:draftCompileGwt
Loading inherited module 'com.lab.guy.GdxDefinitionSuperdev'
  Loading inherited module 'io.socket'
   [ERROR] Unable to find 'io/socket.gwt.xml' on your classpath; could be a typo, or maybe you forgot to include a classpath entry for source?

当我将此代码添加到 GdxDefinitionSuperdev.gwt 时：

<inherits name='io.socket' />

如果我不这样做，错误是：

> Task :html:draftCompileGwt
Compiling module com.lab.guy.GdxDefinitionSuperdev
   [ERROR] Errors in 'file:/C:/Users/Gui/Desktop/Projects/Games/TouhouIO/core/src/com/lab/guy/Touhou.java'
      [ERROR] Line 53: No source code is available for type io.socket.client.Socket; did you forget to inherit a required module?
      [ERROR] Line 177: No source code is available for type io.socket.client.IO; did you forget to inherit a required module?
      [ERROR] Line 188: No source code is available for type org.json.JSONObject; did you forget to inherit a required module?
      [ERROR] Line 204: No source code is available for type org.json.JSONException; did you forget to inherit a required module?
      [ERROR] Line 212: No source code is available for type io.socket.emitter.Emitter.Listener; did you forget to inherit a required module?
      [ERROR] Line 409: No source code is available for type org.json.JSONArray; did you forget to inherit a required module?
   Tracing compile failure path for type 'com.lab.guy.Touhou'
      [ERROR] Errors in 'file:/C:/Users/Gui/Desktop/Projects/Games/TouhouIO/core/src/com/lab/guy/Touhou.java'
         [ERROR] Line 188: No source code is available for type org.json.JSONObject; did you forget to inherit a required module?
         [ERROR] Line 204: No source code is available for type org.json.JSONException; did you forget to inherit a required module?
         [ERROR] Line 53: No source code is available for type io.socket.client.Socket; did you forget to inherit a required module?
         [ERROR] Line 177: No source code is available for type io.socket.client.IO; did you forget to inherit a required module?
         [ERROR] Line 212: No source code is available for type io.socket.emitter.Emitter.Listener; did you forget to inherit a required module?
         [ERROR] Line 409: No source code is available for type org.json.JSONArray; did you forget to inherit a required module?
      [ERROR] Errors in 'file:/C:/Users/Gui/Desktop/Projects/Games/TouhouIO/core/src/com/lab/guy/Player.java'
         [ERROR] com.lab.guy.Touhou cannot be resolved to a type

带有堆栈跟踪的完整日志：https://pastebin.com/uT1pH0PV

P.S.： 为桌面编译时，正确包含了 Socket.IO。它出现在我的 build.gradle 的“核心”部分。我正在运行的服务器在 Node.JS 中。

PPS：如果我能看到如何使用 Socket.IO 使基本的 LibGDX 应用程序（baglogic 徽标）编译为 HTML，我可以用它代替我的代码并让它工作:)

感谢您的阅读！

Answer 1

使用 GWT，仅包含一个 javascript 库并从 java 代码中引用它是不够的——您需要为 javascript API 定义一个 java 包装器，以便您可以从您的 java 代码中访问它。

例如，有一个项目https://github.com/jumanor/gwt_socket.io，其中有人在 GWT 中为 socket.io 创建了一个 java 包装器。

一旦构建，应用程序需要由 HTTP Web 服务器提供服务，例如 apache 或 node.js 模块 serve。然后，您可以将浏览器指向正在提供的 URL 并在浏览器中运行它。