@BlackYps As Sprouto describes: it is the maximum height difference over the build skirt. Tech 1 power generators are small, therefore the maximum angle would be larger. Factories are large, maximum angle would be smaller. I'm sure this can be computed using trigonometry.
@Fichom You propose a solution with a ton of edge cases for something that is an edge case itself. The majority of the terrain is flat - just generate any map and the majority is flat. Look at any competitive map and the majority is flat. It only matters for those moments where you build near or on top of a ramp / hill.
@GoodRaptor See what I wrote to Fichom - the majority of structures placed in a game are completely unchanged.
@Zeldafanboy thank you, finally someone that understands how niche the impact is in practice. Except for the fact that terrain deformations can be a real pain when they happen, and now it becomes virtually impossible to create terrain deformations that negatively impact gameplay.
For those that have worries: please take the time to experiment on the FAF Develop. We can discuss individual cases and adjust parameters if a structure can indeed end up looking silly. Describing hypothetical situations is - with all due respect - not helping anyone, especially as you can just start the FAF Develop game type as described in the first post:
With all of that said - I'm eagerly looking for a few representative lobbies to play on FAF Develop. I've seen a few replays of the past week and they feel a lot smoother performance wise - but they weren't exactly representative. It also helps a lot with testing the stability