So, I've thrown together a small modpack for myself to play, and am looking for a mod to complete it. I want to play with hunger enabled, and passive mobs spawning, but I don't want hostile mobs in my world (it's primarily for an RPG map I'm making). I'm looking for something simple that disables hostile mob spawning only, yet leaves passive mobs, and hunger enabled. For this reason, Peaceful mode, nor the DoMobSpawning game rules work for me, as one disables hunger, and the other prevents all mob spawns, not just passive ones.
Is there anything around that I just don't know about for what I need?