Fix position desync causing item interaction failures

client/src/network/messageHandlers.ts

@@ -140,6 +140,11 @@ export function createOnMessageHandler(deps: MessageHandlerDeps): (message: Inco
       }
 
       case 'update_position': {
+        if (message.id === deps.state.player.id) {
+          deps.state.player.x = message.x;
+          deps.state.player.y = message.y;
+          break;
+        }
         const peer = deps.state.peers.get(message.id);
         const prevX = peer?.x ?? message.x;
         const prevY = peer?.y ?? message.y;

client/src/network/protocol.ts

@@ -225,7 +225,7 @@ export type IncomingMessage = z.infer<typeof incomingMessageSchema>;
 export type OutgoingMessage =
   | { type: 'signal'; targetId: string; sdp?: RTCSessionDescriptionInit; ice?: RTCIceCandidateInit }
   | { type: 'update_position'; x: number; y: number }
-  | { type: 'teleport_complete' }
+  | { type: 'teleport_complete'; x: number; y: number }
   | { type: 'update_nickname'; nickname: string }
   | { type: 'chat_message'; message: string }
   | { type: 'ping'; clientSentAt: number }