Increase critical time warnings and customization

[Unihedro]

http://ja.lichess.org/forum/lichess-feedback/critical-time

[Vinvin20]

IMHO, there should be 2 types of time warning : close to 0 and late on your opponent.
In 1+0 : I would want to be warn when I cross the 10 sec (1/6 of the time) "play fast !" and when I cross 5 sec (1/12 of the time) "time scramble !". 2nd type, when I have only 2/3 (or a value between 60% and 70%) the time of my opponent (example : 20 to 30 sec) : "Late !".

[Unihedro]

Can perhaps reuse #609 (bd81e76) on setting.

[Vinvin20]

Yes, yellow clock (and a small sound first time it happen) would be good for :

• when I cross 5 sec (1/12 of the time)
  and
• when I have only 2/3 (or a value between 60% and 70%) the time of my opponent

[TheCodeArtist]

These time limits/thresholds %s look arbitrary to me.
Also a few Qs before someone jumps into the implementation.

• Should the limit values be customisable by the user to suit their preferences?
  • User can specify limits as absolute values or % values or either?
• We need per-move warning counter?
• time-left warning (lot sooner than the current time-left critical) counter?
• what other time-limit warnings do players usually use/want/need?

[stale]

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If the issue is still relevant, please briefly explain (or remove the label). Feel free to reopen at any time.

[boborbt]

I would totally love some more control on the critical time alerts. To keep things simple just a preference about when the critical time alert should fire would be a good start.