Hey there, thank you for the kind words! I think decals could help, I also thought about making tiling the UVs of the mesh from their worldPos but that means I would need to alter UVs on potentially hundreds of pieces.



Maybe I'll just place a random flag, or window or just a wooden post.



I saw that algorithm yesterday thank you it looks nice, I think it could work since I'm generating box colliders for each segments of the wall.



It's fine since I would only be checking the building's origin as you can't build a wall where there's a building, and you can't place a building if it's colliding with something else so there will never be a case where a building is touching or placed inside a wall.

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