Hello all, I was wondering if it would be possible to make a mod that would limit where mobs would spawn. What I'm looking for is to limit mob spawns to only occur below Y level 63, basically so they can only spawn below sea level. The reason for this is I am making an RP map/server and it would be inconvenient if mobs were above ground while questing and such but at the same time I want to keep mob spawns open in caves to provide some suspense and atmosphere when mining. I would need this to cover mod-added mobs as well as vanilla ones if at all possible.
If someone would be willing to do this I'd be very grateful, or if this sort of thing is already available I'd appreciate a link.
P.S. I am already using MobSpawnControl v2 to affect biome specific spawning but it does not allow for any kind of height specific spawning. Compatability with MSC is not a requirement.