[MIRROR] Neutralised anomalies respect the core limit (#28185)

* Neutralised anomalies respect the core limit (#83964)

## About The Pull Request

This PR changes it so that if you refine an anomaly by neutralising it,
it respects the same limit on number of anomaly cores as refining one
you bought from Cargo.
If it would produce an illegal core, it will create a mostly useless
inert core which you can sell at cargo for 80% of the price of buying a
raw core.

## Why It's Good For The Game

https://hackmd.io/@ tgstation/r1tzxpwPL
This was a requirement in the original design doc which just never made
it into the game.
We want to be able to control how many cores of each type can possibly
exist in a round, as this is what allows them to have the "these items
can be really busted" allowance.

## Changelog

🆑
fix: Neutralising an anomaly cannot produce more anomaly cores than are
supposed to exist in a single round
/🆑

* Neutralised anomalies respect the core limit

---------

Co-authored-by: Jacquerel <hnevard@gmail.com>

code/controllers/subsystem/research.dm

@@ -334,3 +334,16 @@ SUBSYSTEM_DEF(research)
 			continue
 		valid_servers += server
 	return valid_servers
+
+/// Returns true if you can make an anomaly core of the provided type
+/datum/controller/subsystem/research/proc/is_core_available(core_type)
+	if (!ispath(core_type, /obj/item/assembly/signaler/anomaly))
+		return FALSE // The fuck are you checking this random object for?
+	var/already_made = created_anomaly_types[core_type] || 0
+	var/hard_limit = anomaly_hard_limit_by_type[core_type]
+	return already_made < hard_limit
+
+/// Increase our tracked number of cores of this type
+/datum/controller/subsystem/research/proc/increment_existing_anomaly_cores(core_type)
+	var/existing = created_anomaly_types[core_type] || 0
+	created_anomaly_types[core_type] = existing + 1