add Duel.GetSZoneCount

[ghost]

If no spell&trap zone, Brotherhood of the Fire Fist - Rooster can send field spell to grave.

[DailyShana]

I hope you can only focus on szone count and do not change others

[ghost]

It is better to unify those functions.
If those functions unified, some cards (e.g. The Weather Painter Sun) can use new check function (e.g. Card.IsAbleToField).

[DailyShana]

I don't think there is any improvement for The Weather Painter Sun, its script is simple and clear, nearly word-to-word translation from text to script

[ghost]

some to field effects cannot check perfectly.
so, it is better to add Card.IsAbleToField.

[DailyShana]

if some card is going to mzone, check the count of mzone
if some card is going to szone, check the count of szone
even if some card is going to mzone or szone, the condition is just mzone>0 or szone>0

[ghost]

field::get_zone_count check mzone or szone only.