Master-servers' protocol
Master-server's message formatting: "<message_code, 1 byte><payload>"
Message codes
-- Client message codes -> to Master
local INIT = 1 -- initial connection, send username
local FIND = 2 -- send lobby's / other player's fullname
-- Master message codes -> to Client
local FLUSH = 1 -- leave lobby, drop all
local JOIN = 2 -- found lobby / player, connect to it
Payloads
| Message | Payload |
|---|---|
| Client.INIT | "<public_ip, string>;<username, string>" |
| Client.FIND | "<username, string>" |
| Master.JOIN | "<p1_ip>;<p2_name>;<p2_public_ip>;<p2_ip>" |
| Master.FLUSH | no payload |
p1_ip is used to determine if players is under one NAT and avoid hairpinning problems.