## About The Pull Request
Went down a rabbit hole with touching the migo files... I noticed that
all of those mobs had a reference to `/datum/component/spawner` on them
which looked a bit off.
After investigation it seems like this component is breaking the
prinicple of using an ECS system by assigning a reference to itself on
every mob it creates? There doesn't seem to be a good reason to do that,
as we can just use signals.
This also doesn't work for basic mobs, because most of them don't _have_
this reference to assign to. If we don't want to add it to every basic
mob (and why would we?) it would make more and more converted mobs
invalid for spawners.
Also it means that it has never been valid to create a Monkey spawner,
which seems like a big oversight.
I replaced all of the parts dependent on telling the mob where it was
spawned from with signals.
Megafauna seemed to have a reasonable amount of code related to "not
straying a certain distance from what spawned them", but as far as I can
tell unless someone varedited one onto a map we have never had a spawner
which creates megafauna (nor would we want one? That would virtually
always cause it to respawn instantly after being killed).
## Why It's Good For The Game
Improves future maintainability
Brings implementation up to current standards.
Makes the code work the way I would have assumed it already worked in
the first place.
## Changelog
🆑
fix: Mob spawners will no longer break if instructed to spawn certain
kinds of basic mob, or monkeys.
/🆑
Loosely adapted from /vg/. This is an entity component system for adding behaviours to datums when inheritance doesn't quite cut it. By using signals and events instead of direct inheritance, you can inject behaviours without hacky overloads. It requires a different method of thinking, but is not hard to use correctly. If a behaviour can have application across more than one thing. Make it generic, make it a component. Atom/mob/obj event? Give it a signal, and forward it's arguments with a SendSignal() call. Now every component that want's to can also know about this happening.
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