Godot-4-Networking

Basic Networking Starter for Godot 4

Very basic 2D Platformer utilizing MultiplayerSpawners (spawning level and players) and MultiplayerSynchronizers (synchronizing id, position and inputs)

Basics included

• uPNP port forwarding
• Server setup
• Level load
• Spawn players
• Synchronize state (basic)

Synchronization

• Sync player:player_id (at spawn) and player:position

• Sync input direction (float)

• Use rpc local call for jump

• Move players (local & puppet) based on synchronized input

Future improvements

• TODO: Sync player state as one call
• TODO: Optimization, e.g. https://godotengine.org/article/multiplayer-changes-godot-4-0-report-4/#optimizations
• TOOD: Implement Channels and Ordering - https://godotengine.org/article/multiplayer-changes-godot-4-0-report-2/#channels-and-ordering
• TODO: Chat via RCP, Websocket or WebRTC
• TODO: ENet mesh networking - https://godotengine.org/article/multiplayer-changes-godot-4-0-report-3/#enet-mesh-networking

References

• https://godotengine.org/article/multiplayer-in-godot-4-0-scene-replication/
• https://godotengine.org/article/multiplayer-changes-godot-4-0-report-1/
• https://godotengine.org/article/multiplayer-changes-godot-4-0-report-2/
• https://godotengine.org/article/multiplayer-changes-godot-4-0-report-3/
• https://godotengine.org/article/multiplayer-changes-godot-4-0-report-4/