/// Inherit from this class, constructor will be called automatically, but other scripts might have yet been loaded, you should use <see cref="OnStart"/>. to initiate your script.
/// This method would be called from main thread when the client disconnected from the server, you MUST terminate all background jobs/threads in this method.
/// Get the resource directory this script belongs to, beware that this directory should not be used to store any client-specific information since it'll get deleted every time the resource is loaded.