Gecko King's Aliens vs Predator Mod

Ported to 1.21.1

Added a new mob faction: the Hellish Xenomorphs.

Added the hellish swimmer chestburster, the xenomorph swimmer, the xenomorph boiler, the hellish ovomorph, the hellish facehugger, the hellish runner chestburster, the hellish swimmer chestburster, the hellish chestburster, the hellish predalien chestburster, the hellish xenomorph runner, the hellish xenomorph burster, the hellish xenomorph spitter, the hellish xenomorph prowler, the hellish xenomorph drone, the hellish xenomorph warrior, the hellish xenomorph boiler, the hellish xenomorph carrier, the hellish xenomorph crusher, the hellish xenomorph praetorian, the hellish xenomorph raven, the hellish predalien, the hellish xenomorph ravager, the hellish xenomorph queen, neomorphic egg sacs, the bloodburster, and the pathogen villager.

Added 2 new effects: corrosion and deterioration.

Xenomorphs and pathogens are now immune to corrosion, and pathogens are also immune to deterioration.

Xenomorphs and pathogens can no longer drown.

Xenomorph crushers, praetorians, and ravens are pushed by fluids now; along with no longer being immune to arrows.

Certain mobs can now transform into pathogens if they die to the deterioration effect.

Xenomorphs and pathogens can now survive in Ad Astra's space.

Retextured Specimen 6, and the yautja's self-destruct device on its left arm glows in the dark now.

Pathogen Poppers now only pop when they're hit or killed.