If the client loads within 1.5s, a sound notification will briefly be displayed. I simply used a different magic number to fix this (Client()->LocalTime() starts at 0).

Closes https://github.com/teeworlds/teeworlds/issues/1639 Ended up doing it server-side. It uses a new state STATE_CONNECTING_AS_SPEC for clients, to remember that they're reconnecting as specs.