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wraitii 5ebf2020b0 Netcode: allow observers to lag behind the live game.
Observers no longer lag the game for players. There is still some time
to serialise the game when sending it to a joining observer, and
depending on the chosen 'max lag' the game may stop while observers
sufficiently catch up, but this impact too is reduced.

- Make the NetServerTurnManager ignore players marked as 'observers' for
the purpose of ending a turn, effectively making it possible for
observers to lag without it affecting the players in any way.
- Add a config option (network.observermaxlag) that specifies how many
turns behind the live game observers are allowed to be. Default to 10
turns, or 2 seconds, to keep them 'largely live'.
- The controller is not treated as an observer.
- Implement a simple UI to show this delay & allow the game to speed up
automatically to try and catch up. This can be deactivated via
network.autocatchup.
- Move network options to the renamed 'Network / Lobby' options page.
- Do not debug_warn/crash when receiving commands from the past -
instead warn and carry on, to avoid DOS and "coop play" issues.

Refs #5903, Refs #4210

Differential Revision: https://code.wildfiregames.com/D3737
This was SVN commit r25156.
2021-03-29 07:53:06 +00:00
..
default.cfg Netcode: allow observers to lag behind the live game. 2021-03-29 07:53:06 +00:00
dev.cfg Write mod data correctly. Fixes #1940. 2013-06-11 20:50:09 +00:00
keys.txt Format hotkey tooltip when an alternate key-name is used 2021-01-17 16:04:51 +00:00