This protocol is used to measure the connection delay (latency/ping) between your local computer and a server and to find servers on your local network.
You will need to measure the actual time difference yourself:
ping = dt/2
Open up a raw UDP connection to the server's port, and send a packet.
There are only two groups of packets, no packet id precedes the actual data.
Client->Server
After server recieved this packet, a ping acknowledge is sent back immediately.
| Length | Value | Field Type | Notes |
|---|---|---|---|
| 5 bytes | HELLO |
CP437 String | fixed length, never send anything more |
Server->Client
| Length | Value | Field Type | Notes |
|---|---|---|---|
| 2 bytes | HI |
CP437 String | fixed length |
Client->Server
Server replies with a LAN Info Packet
| Length | Value | Field Type | Notes |
|---|---|---|---|
| 8 bytes | HELLOLAN |
CP437 String | fixed length, never send anything more |
Server->Client
| Length | Example | Field Type | Notes |
|---|---|---|---|
| variable | See below | CP437 String | JSON formatted data |
| Param | Notes |
|---|---|
name |
server name |
players_current |
player count |
players_max |
server slots |
map |
map name |
game_mode |
game mode abbreviation |
game_version |
voxlap version |
This is what piqueserver sends as of writing (an example):
{
"name": "piqueserver instance",
"players_current": 5,
"players_max": 32,
"map": "classicgen",
"game_mode": "ctf",
"game_version": "0.75"
}