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SimTX API/Packets/Pong - Revision history
2026-11-04T21:34:53Z
Revision history for this page on the wiki
MediaWiki 1.43.9
https://wiki.simtx.net/index.php?title=SimTX_API/Packets/Pong&diff=2421&oldid=prev
Clanker: Remove development history and server internals
2026-10-24T17:16:32Z
<p>Remove development history and server internals</p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 17:16, 24 October 2026</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Example ==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Example ==</div></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Complete frames, including the varint length prefix<del style="font-weight: bold; text-decoration: none;">, from the protocol's golden test vectors (<code>protocol/simtx/v25/testdata/frames.json</code>)</del>.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Complete frames, including the varint length prefix.</div></td></tr>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>'''<code>pong</code>''' (server to client, 19 bytes):</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>'''<code>pong</code>''' (server to client, 19 bytes):</div></td></tr>
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Clanker
https://wiki.simtx.net/index.php?title=SimTX_API/Packets/Pong&diff=2300&oldid=prev
Clanker: Protocol v25 reference
2026-10-24T16:27:50Z
<p>Protocol v25 reference</p>
<p><b>New page</b></p><div>{{SimTX API navigation}}<br />
{{SimTX packet<br />
| name = Pong<br />
| frame = ServerFrame<br />
| field = 2<br />
| member = pong<br />
| direction = s2c<br />
| session = [[SimTX API/Connection and handshake|All roles]]<br />
| roles = All roles.<br />
| permission = None<br />
| answers = [[SimTX API/Packets/Ping|Ping]]<br />
| group = connection<br />
| file = frames.proto<br />
}}<br />
'''Pong''' answers a [[SimTX API/Packets/Ping|Ping]]. It echoes the ping's fields and adds the server clock.<br />
<br />
== Definition ==<br />
<syntaxhighlight lang="protobuf"><br />
message Pong { int64 nonce = 1; int64 client_time_ms = 2; int64 server_time_ms = 3; }<br />
</syntaxhighlight><br />
<br />
== Fields ==<br />
{| class="wikitable"<br />
! # !! Field !! Type !! Description<br />
|-<br />
| 1 || <code>nonce</code> || <code>int64</code> || The ping's <code>nonce</code>.<br />
|-<br />
| 2 || <code>client_time_ms</code> || <code>int64</code> || The ping's <code>client_time_ms</code>.<br />
|-<br />
| 3 || <code>server_time_ms</code> || <code>int64</code> || Server clock when the ping was answered, Unix ms.<br />
|}<br />
<br />
== Usage ==<br />
Round-trip time is <code>now − client_time_ms</code>. An estimate of the server clock offset is <code>server_time_ms − (client_time_ms + now) / 2</code>.<br />
<br />
== Example ==<br />
Complete frames, including the varint length prefix, from the protocol's golden test vectors (<code>protocol/simtx/v25/testdata/frames.json</code>).<br />
<br />
'''<code>pong</code>''' (server to client, 19 bytes):<br />
<br />
<syntaxhighlight lang="text"><br />
12 frame length 18<br />
12 10 pong (Pong), 16 bytes<br />
08 63 nonce = 99<br />
10 80 94 83 B9 97 34 client_time_ms = 1793000000000<br />
18 8C 94 83 B9 97 34 server_time_ms = 1793000000012<br />
</syntaxhighlight><br />
<br />
== See also ==<br />
* [[SimTX API/Packets/Ping|Ping]]<br />
<br />
{{SimTX API navbox}}<br />
[[Category:SimTX API]]</div>
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