By default make offline

src/network/LocalClient.h

@@ -17,5 +17,9 @@ namespace ZL {
 
         bool IsConnected() const override { return true; }
         int GetClientId() const { return 1; }
+
+        std::unordered_map<int, ClientStateInterval> getRemotePlayers() override {
+            return std::unordered_map<int, ClientStateInterval>();
+		}
     };
 }