[2.0.26] RollingStock picture frame selection discontinuities when transitioning on/off the rail ramp

[kirazy]

There are several discontinuities in sprite frame selection when a rolling stock entity is transitioning on/off the base of a rail ramp.

A) Shadow Discontinuity


There is a discontinuity in the rolling stock shadow at the base of the ramp. This is entity-agnostic and appears to be related to how the engine is choosing which frames of the shadow to display.

B) Sloped-to-Rotation Discontinuity


This is specifically when the rail immediately after the ramp is a curved rail. The rolling stock snaps from the sloped sprite set to the rotated sprite set prematurely.

For completeness, it does not occur for a straight rail:


May not be fixable or worth fixing, but who knows...?

[boskid]

Case A is most likely a difference of shadow casted on ramp vs shadow casted on straight rails and i do not care about this.

Case B is related to selection of rotated vs sloped sprires. Sloped sprites are given only for 4 rotations. Due to rails turning, the rotation falls into a nearby direction for which sloped sprites are not given so it gets a non sloped but rotated sprite. I was aware of this case when ramps were implemented and this was well within my 'i do not care' quota given all the other compromises that had to be made.

[IsaacOscar]

There are several discontinuities in sprite frame selection when a rolling stock entity is transitioning on/off the base of a rail ramp.

A) Shadow Discontinuity


There is a discontinuity in the rolling stock shadow at the base of the ramp. This is entity-agnostic and appears to be related to how the engine is choosing which frames of the shadow to display.

B) Sloped-to-Rotation Discontinuity


This is specifically when the rail immediately after the ramp is a curved rail. The rolling stock snaps from the sloped sprite set to the rotated sprite set prematurely.

For completeness, it does not occur for a straight rail:


May not be fixable or worth fixing, but who knows...?

Completely off topic, but how did you make those cool little videos?

[kirazy]

Completely off topic, but how did you make those cool little videos?

Windows Snip tool!

[IsaacOscar]

Completely off topic, but how did you make those cool little videos?

Windows Snip tool!

Thanks!