`null_spawn_chance` vs `spawn_chance`

[Liggi]

Do these interact at all?

If `null_spawn_chance` is 0.9, but `spawn_chance` is 1... does that mean there's a 90% chance that the anomaly won't spawn in the game? Or does `spawn_chance` override it?

 

[Ryika]

Null spawn chance is checked first (at the beginning of the game, I think?), and only once, and decides whether that category can or cannot spawn in the game.
So if it's 0.9, there's essentially a 90% chance that the category won't be added to the pool of possible anomalies at all. You'll have a chance to get it in 1 out of 10 games.

However, you won't always get it in that "1 out of 10" game, since if the initial roll passes, then every time an anomaly is spawned, it checks wether the spawn_chance trigger returns a value > 0. If it does, the anomaly then competes with all other categories that are valid on that object, through a weighted, random roll.