Firstly, this is intended to be a float division.
Secondly, dividing integers by 0 results in an exception, but dividing
non-zero floats by 0 results in +/- infinity which will be clamped to
the upper range.
In particular, this occurs when the beatmap has 1 hitobject (0 drain
length).
While `EndTime + tickSpacing` _was_ closer to what stable was using, it
could cause undesirable edge cases wherein a tick would be spawned
outside of the drum roll's duration
(see https://github.com/ppy/osu/pull/23768/files#r1222073027).
For this reason, stick with the old code for now, as it is not as
susceptible to that sort of breakage.
There were no usages of more than one column being provided per row, so
it seemed like unnecessarily complexity. I'm currently trying to reduce
complexity so we can improve the layout of the results screen, which
currently has up to three levels of nested `GridContainer`s.
Of note, I can't add backwards compatibility because the method
signature has not changed in `Ruleset` (only the return type). If we do
want to keep compatibility with other rulesets, we could designate a new
name for the updated method.
4a7b011a53773d547b60401f609d7e394482a3ab inadvertently unearthed that
nested strong hits could play samples of their own accord, rather than
delegating to `DrumSampleTriggerSource` as they were supposed to. This
was an unfortunate omission due to how the inheritance structure of
`TaikoHitObject` looks like (some irrelevant classes omitted for
brevity):
DrawableTaikoHitObject
DrawableTaikoHitObject<TObject> <-- `GetSamples()` was overridden to empty here
DrawableTaikoStrongableHitObject
DrawableHit
DrawableDrumRoll
DrawableDrumRollTick
DrawableSwell
DrawableSwellTick
DrawableStrongNestedHit <-- all strong nested hits are here => didn't receive `GetSamples()` override
DrawableHit.StrongNestedHit
DrawableDrumRoll.StrongNestedHit
DrawableDrumRollTick.StrongNestedHit
To fix, move the `GetSamples()` override one level higher, to the
non-generic `DrawableTaikoHitObject`, to suppress the spurious sample
playbacks.
The stale reference in the comment was also updated to match current
code.
