Pre-Request Checklist

• [x ] I have checked that I am on the latest version of Terra.
• [x ] I have searched github for similar features requests, including closed ones, and found none.
• [x ] I believe this is within the scope of Terra.
• [x ] This feature request is for all of Terra, and isn't something that should be implemented by a pack or addon.

Feature Description

In .tesf files there are the
entity(-18, y + 9, -25, "ELDER_GUARDIAN");
lines.
It should be possible to add an option like
entity(-18, y + 9, -25, "ELDER_GUARDIAN", persistent);
to make the mob spawn with setPersistent(true) option.

What Problem Does This Solve?

Guardians despawning, pillager despawning, mob despawning in general.

A Solution You'd Like

Just check in the TESF file parser if hte persistent keywork is present, and if it is, set myEntity.setPersistent(true);

Alternative Solutions

No alternative.

Additonal Context

--

#111 sort of, this issue as a whole is simply invalid, because spawned mobs are already persistent.

Duplicates/Invalid issues will be closed without explanation if it's obvious why they're being closed.

Spawned mobs are not persistent if you don't manually set setPersistent(true), exception made for Elder Guardians and other bosses.
I fixed it myself with literraly one line of code in the BukkitWorld.java file in the spawnEntity(...) method:
bukkitEntity.getHandle().setPersistent(true);
(after saving the new entity in a variable of course)

Well, thanks for the closing explanations.