This patch adds a new type of tutorial steps called "GUI explanation",
with a corresponding GUI panel. The purpose of it is to explain what a
certain GUI element does. To make use of it the trigger script has to
specify the target GUI object's name as well as the side on which to
place the explanation panel relative to the target itself. The panel
then highlights the target object by fading everything else out with
black and also uses an arrow to point to it. Whilever the target GUI
object is hidden, the panel hides the background fade too and shows a
warning message.
Unlike for the other steps, the TutorialManager does not hide the
previously active panel when showing a GUI explanation, but instead
only disables it, since it could contain relevant information and the
GUI explanation panel is visibly placed "above" all other panels (in the
Z axis).
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.
