Stairs have different block ID based on direction

[Charnuz]

Minecraft: 1.12.2
Forge: 14.23.5.2838
UB: 1.3.7

Since stairs have a different block ID for each direction, for Red Granite there is:

undergroundbiomes:igneous_brick_stairs_east:0
undergroundbiomes:igneous_brick_stairs_west:0
undergroundbiomes:igneous_brick_stairs_north:0
undergroundbiomes:igneous_brick_stairs_south:0

A side effect of this is mods that generate structures and use the stairs (like Roguelike Dungeons) cannot automatically rotate the stairs to the needed direction.

[Aang23]

I don't know why kyeiti did it like that.
I'm gonna make those tile entities, but that'll be a breaking release!

[Juuxel]

It's probably because of the block state limit to 16 (I think 1.12 still had that?). Instead of TEs you could also split up the different stone types to different stair block IDs (red_granite_stairs and so on).

[Aang23]

@Juuxel That would work and that's how it works in 1.14+. Though it'll be way easier to use data tiles than rewriting that much.
If I were to do that I would probably rewrite a major chunk of the mod.