Collision boxes rounding errors in different aspect ratios

[potsmugen]

Describe the bug

Collision box hit detection varies by one pixel depending on whether you're playing in 4:3 or 16:9. So far I was only able to find this bug in the Y axis.

To Reproduce

1. Add this to KFM:

[State -2,  Test]
type = posset
trigger1 = teamside = 2
y = -81

2. Select KFM vs KFM
3. Try to hit P2 with a standing light punch
4. Change Ikemen's resolution to a different aspect ratio
5. Try to hit KFM again

Expected behavior

Since KFM's standing light punch Clsn1 reaches Y = -80, this move should miss in either aspect ratio. So 4:3 works correctly and 16:9 does not.

Screenshots / Video

640x480:

1280x720:

Engine Version (or source code date)

26/08/2023 but also 0.98.2

Operating system

Windows

Extra context or search terms

No response