Ah yes, I actually found yours last night, ElectricCake! I even emulated your design, albeit with the only building material I had available, cobble.
I'll be updating to the current version tonight, so hopefully I can get some obsidian without wrecking my lava lake.
That thing is AWESOME, by the way. It keeps spawning afrits. It's exactly far enough away they don't aggro though unless I get close. So it's like a Dark Power farm! I get close, aggro a couple, and back off to the water flow. Their fireballs are laughably impotent when they can't set me on fire. Then I kill them. Dark Power. Repeat.
Now that I figured out I can get AM2 spells even without a Compendium, it's even easier. I can snipe them from the door of my oubilette. They're far enough away they rarely aggro. Free Dark Power!
I've been at it long enough I think there's probably been a siege by now. I did have a porty creeper and a normal creeper ambush me, but I survived okay. I imagined hordes of zombies spawning all at once and suddenly converging on me, but it seems the actual event isn't quite so dramatic.
I think it may be because there's already a lot of hostile mobs around, separated behind walls/floors/etc...the cap still applies during siege days, yes?
That gives me a fun idea. Mob Box. Big obsidian box that's completely closed. Perfect mob spawning turf...but they can't get out. Eventually, inevitably, all possible hostile mobs will be in the box. No more will be able to spawn near me unless I get far enough from the box for them to despawn.
HMMM. Must get obsidian!
