In order to keep the performance we made it Internal Mutability and use a `Mutex` per Stream, till `Stream.send` is no longer `&mut self`.
The old solution didn't rely on this, but needed multiple Components instead which zest didn't liked
- fix wording in error msg
- find better name for structs
- unify errors and cleanup code with `(|| {foo?; Some(())})()` pattern
- fix the negative PlayersOnline, it was caused by having a gracefull shutdown AND a timeout error. we now unregister the client when he issues TERMINATE
His reason to reqeust that is, that there might not be a perfect disctinction in the future.
Now we need to send ServerGeneral over streams and do additional checking at various places to verify that not the wrong variant is send.
- Instread we have a dedicated thread that will async wait for new participants to connect and then notify the main thread
- registry no longer sends a view distance with it.
- remove ClientMsg::Command again as it's unused
```
//This is a helper structure, containing all possible data send over
pub enum ClientMsg {
Initial(ClientType),
General(ClientGeneralMsg),
InGame(ClientInGameMsg),
NotInGame(ClientNotInGameMsg),
Register(ClientRegisterMsg),
Ping(PingMsg)
}
```
Rather than having a single Stream to handle ALL data, seperate into multiple streams:
- Ping Stream, for seperate PINGS
- Register Stream, only used till the client is registered, then no longer used!
- General Stream, used for msg that can occur always
- NotInGame Stream, used for everything NOT ingame, e.g. Character Screen
- InGame Stream, used for all GAME data, players, terrain, entities, etc...
This version does compile, and gets the client registered (with auth too) but doesnt get to the char screen yet.
This fixes also the ignoring messages problem we had, as we are not sending data to the register stream!
This fixes also the problem that the server had to sleep for the Stream Creation, as the Server is now creating the streams and client has to sleep.
