Don't allow dual-wielding if either wielded or alternate weapon
(or both) is a launcher: bow, crossbow, or sling. (I thought that
this had been addressed ages ago.)
Refine the "can't twoweapon" feedback. The message for having
either or both hands empty is the same, but sentence construction
is different. The not-a-weapon feedback is slightly different, now
mentioning whether it's the wielded or alternate weapon which isn't
allowed. The case where neither are acceptable still just reports
uwep; mentioning both it and uswapwep would be too verbose.
Make more things be described as "(wielded)" instead of "(weapon in
hand)". It was just stacks with quantity more than 1. That's now
joined by ammo and missiles (any stack size, but in reality just 1
since greater was already being caught here) and any quantity of
non-weapon, non-weptool. It's overridden if dual-wielding so that
right/left stay matched.
When dual-wielding, list primary as "(wielded in right hand)" and
secondary as "(wielded in left hand)" instead of "(weapon in hand)"
and "(wielded in other hand)". The vaguer wording was better for
bows since they're held in the off hand but now that they can't be
dual-wielded that doesn't matter. (Single-wielding a bow is still
"(weapon in hand)".)
When not dual-wielding, the item in the alternate weapon slot is
still described as "(alternate weapon; not wielded)" even if it's
not actually a weapon. I couldn't think of better phrasing.
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