Special Splitter Shenanigans Survey

Special Splitter Shenanigans Survey
TL,DR; Which of the behaviors pictured below makes sense to you? How far down the rows do things make sense?

Some spec details
1. Running directly into a curved belt will fail with "curved belt in the way"
- Justification: in absence of failures, smart belt should not change existing belt lines; and we always integrate belt segments we "directly run into"
2. Dragging past a splitter, even with belt after it, will integrate it
- Justification: This is the behavior in previous versions. In the current version, smart belt tries to underground over this, eventually failing due to "underground too long". From surveys it seems people really don't like this new behavior.

MAIN PROPOSAL
3. If a curved belt follow a splitter, try to underground over it, like in the side balancer example below. It's this case, from educated guessing and the grapevine, that I think kovarex wanted to support (but implemented poorly).
- Justification: if you tried to integrate the splitter instead, from item (1) this will fail at the curved belt. This is a rather common case; as such, might be better to underground past it.
Details:
- This only applies if the splitter didn't previously have a belt input (the current game implementation does this).
- To avoid long-distance dependencies, the lookahead is limited to how far the belt might underground over.
- If it doesn't match conditions exactly, the special case does not apply, and we default to integrating the splitter and possibly failing later.

Extension: belt weaving
4. Also look through undergrounds of a different tier (since they're possible to underground over)
5. Possible weird consequence of (4), if there's empty spaces.

Extension 2: blocked underground outputs
6 & 7. Also consider at blocked undergrounds (of a different tier) as eligible for undergrounding over.
- Justification: This is trying to generalizing to ALL cases, where integrating the splitter will fail: In new spec, trying to drag past a blocked underground will fail with "entity in the way".

I'm was originally in favor of behaviors 1-7, but given how convoluted the later ones are, I'm leaning toward 1-5 or 1-3.
What do you think?
Statistics: Posted by GlassBricks — Fri Sep 19, 2025 5:27 am