The client likes to fall involuntarily as soon as PLAYER_SPAWN PlayStatus is sent, which causes debug spam on the PM side and then movement reversions if falling far enough. This now prevents the client moving until the server knows the client has spawned.
Async compression and broadcasts are now reliable and don't have race condition bugs.
This features improved performance and significantly reduced bandwidth wastage.
Reduce Level broadcast latency by ticking network after levels. This ensures that session buffers get flushed as soon as possible after level tick, if level broadcasts were done.
this should fix forms not working during PlayerJoinEvent, and also removes the spurious PlayerItemHeldEvent firing on spawn bug.
The player MUST now send this packet. Bots take note.
- Separated player handling and creation from network interfaces
- Rewire disconnects to make them not be recursive
- Batching now uses sessions instead of players
- Fixed DisconnectPacket getting sent to players who disconnect of their own accord
This introduces several new session handlers, splitting up session handling into several new states:
- Login: Only allows handling the LoginPacket. This is the only time LoginPacket can be sent, and it'll be discarded when sent at any other time.
- Resource packs: Handles only the resource packs sequence (downloading packs and such). This is the only time ResourcePackClientResponse and ResourcePackChunkRequest will be handled.
- Pre-spawn: Only chunk radius requests are accepted during this state.
SimpleNetworkHandler handles all the "rest" of the logic that hasn't yet been separated out into their own dedicated handlers. There's also a NullNetworkHandler which discards all packets while it's active.
This solves a large number of issues with the security of the login sequence. It solves a range of possible DoS attacks and crashes, while also allowing great code simplification and cleanup.
