genandnic

Thank you, this works perfectly!

Hostile mobs usually despawn once the player moves away from them, typically once they're 128 blocks away. But passive mobs won't despawn, not by default anyway. I want to spawn a cow that will dissapear once unloaded. I thought I could do this by spawning a mob with "PersistenceRequired" set to false, but this doesn't seem to work: List<ResourceLocation> entities = new ArrayList<ResourceLocation>(EntityList.ENTITY_EGGS.keySet()); ResourceLocation randomResource = entities.get(rand.nextInt(entities.size())); Entity randomEntity = EntityList.createEntityByIDFromName(randomResource, entity.world); if (!randomEntity.isNonBoss()) return; NBTTagCompound nbt = new NBTTagCompound(); nbt.setBoolean("PersistenceRequired", false); ((EntityLiving) randomEntity).readEntityFromNBT(nbt); randomEntity.setPositionAndRotation(entity.posX, entity.posY, entity.posZ, entity.rotationYaw, entity.rotationPitch); entity.world.spawnEntity(randomEntity); entity.setDead();