## About The Pull Request
Inspired by #74967 and #68459 , and the fact that Tramstation regresses
very often -
Adds a unit test, `required_map_items`, which ensures that certain
typepaths which should definitely be mapped onto every map is mapped
onto every map
It can also be used to ensure that items which should not be mapped in
multiple times are not, among other things.
I included a few examples -
- Min 1, max inf of each head of staff stamps
- Min 1, max 1 departmental order consoles
- Min 1, max inf comms console
- Min 1, max 1 Pun Pun
- Min 1, max 1 Poly
- Min 1, max 1 Ian
If, in the future, a mapper decides they (for some reason) do not want a
certain previously-required item on their map, the test can be adjusted
such that it allows excluding or something, but currently it should be
for items which require conscious thought about.
#### QA: Why not make this a linter?
I attempted to make this a linter before realizing two things
1. Someone might make a spawner which spawns the items, or they might
get placed in a locker, in any case this accounts for everything on init
2. Linters run on every map, non-station maps included
So I went with a test
## Why It's Good For The Game
#50468#61013#74967
Why is it always the CMO stamp?
## Changelog
Not necessary (unless I find a map missing something, then this will be
updated)
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.
4de3df461e