[GH-448] Fix multiple SocketConnections in Overworld #489
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Closes #448
Motivation
A new SocketConnection was being instantiated every time we went into the Overworld scene, which started a new WS connection.
With this PR we singletonize the singleton (? to actually keep it as the unique instance.
We also need to fix the ServerSelect stuff a bit: if we called Init there, we would get an unexisting gameobject error. Instead, we use the currently existing singleton instance, connecting to the newly configured domain.
Summary of changes
How has this been tested?
Play around with the swapping of servers and entering and leaving the Overworld scene. When connecting to localhost, you should see one
[info] Websocket INIT called
log in the server for each time you connected to the backend through the Server Selector, and not one for each time you entered the Overworld scene.Checklist