im a dumbass and didn't see the .rej files Revert "[MIRROR] Disease Refactor" (#2025)

* Revert "Automatic changelog generation for PR #2021 [ci skip]"

This reverts commit 9d0cd37dd3.

* Revert "Disease Refactor (#2021)"

This reverts commit f2ac487927.

code/controllers/subsystem/disease.dm

@@ -1,8 +1,11 @@
 SUBSYSTEM_DEF(disease)
 	name = "Disease"
-	flags = SS_NO_FIRE
+	flags = SS_KEEP_TIMING|SS_NO_INIT
+	runlevels = RUNLEVEL_GAME | RUNLEVEL_POSTGAME
+
+	var/list/currentrun = list()
+	var/list/processing = list()
 
-	var/list/active_diseases = list() //List of Active disease in all mobs; purely for quick referencing.
 	var/list/diseases
 	var/list/archive_diseases = list()
 
@@ -12,5 +15,27 @@ SUBSYSTEM_DEF(disease)
 	if(!diseases)
 		diseases = subtypesof(/datum/disease)
 
+/datum/controller/subsystem/disease/Recover()
+	currentrun = SSdisease.currentrun
+	processing = SSdisease.processing
+	diseases = SSdisease.diseases
+	archive_diseases = SSdisease.archive_diseases
+
 /datum/controller/subsystem/disease/stat_entry(msg)
-	..("P:[active_diseases.len]")
+	..("P:[processing.len]")
+
+/datum/controller/subsystem/disease/fire(resumed = 0)
+	if(!resumed)
+		src.currentrun = processing.Copy()
+	//cache for sanic speed (lists are references anyways)
+	var/list/currentrun = src.currentrun
+
+	while(currentrun.len)
+		var/datum/thing = currentrun[currentrun.len]
+		currentrun.len--
+		if(thing)
+			thing.process()
+		else
+			processing.Remove(thing)
+		if (MC_TICK_CHECK)
+			return