Proper mirror PR for the disease refactor because I fucked up the first one. (#2026)

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

This reverts commit 44742cb115.

* Delete shuttle_loan.dm.rej

* Delete life.dm.rej

* Update life.dm

* Delete life.dm.rej

* compile

code/modules/events/disease_outbreak.dm

@@ -27,11 +27,17 @@
 			continue
 		if(T.z != ZLEVEL_STATION)
 			continue
-		var/foundAlready = 0	// don't infect someone that already has the virus
-		for(var/datum/disease/D in H.viruses)
-			foundAlready = 1
+		if(!H.client)
+			continue
+		if(H.stat == DEAD)
+			continue
+		if(VIRUSIMMUNE in H.dna.species.species_traits) //Don't pick someone who's virus immune, only for it to not do anything.
+			continue
+		var/foundAlready = FALSE	// don't infect someone that already has a disease
+		for(var/thing in H.viruses)
+			foundAlready = TRUE
 			break
-		if(H.stat == DEAD || foundAlready)
+		if(foundAlready)
 			continue
 
 		var/datum/disease/D
@@ -45,6 +51,6 @@
 			DS.strain_data["SE"] = H.dna.struc_enzymes
 		else
 			D = new virus_type()
-		D.carrier = 1
+		D.carrier = TRUE
 		H.AddDisease(D)
 		break

code/modules/events/shuttle_loan.dm

@@ -135,7 +135,7 @@
 					new /obj/structure/spider/stickyweb(T)
 
 			if(ANTIDOTE_NEEDED)
-				var/virus_type = pick(/datum/disease/beesease, /datum/disease/brainrot, /datum/disease/fluspanish)
+				var/obj/item/weapon/reagent_containers/glass/bottle/virus_type = pick(/obj/item/weapon/reagent_containers/glass/bottle/beesease, /obj/item/weapon/reagent_containers/glass/bottle/brainrot, /obj/item/weapon/reagent_containers/glass/bottle/fluspanish)
 				var/turf/T
 				for(var/i=0, i<10, i++)
 					if(prob(15))
@@ -145,11 +145,7 @@
 					else if(prob(25))
 						shuttle_spawns.Add(/obj/item/weapon/shard)
 					T = pick_n_take(empty_shuttle_turfs)
-					var/obj/effect/decal/cleanable/blood/b = new(T)
-					var/datum/disease/D = new virus_type()
-					D.longevity = 1000
-					b.viruses += D
-					D.holder = b
+					new virus_type(T)
 				shuttle_spawns.Add(/obj/structure/closet/crate)
 				shuttle_spawns.Add(/obj/item/weapon/reagent_containers/glass/bottle/pierrot_throat)
 				shuttle_spawns.Add(/obj/item/weapon/reagent_containers/glass/bottle/magnitis)

code/modules/events/spontaneous_appendicitis.dm

@@ -8,10 +8,17 @@
 
 /datum/round_event/spontaneous_appendicitis/start()
 	for(var/mob/living/carbon/human/H in shuffle(GLOB.living_mob_list))
-		var/foundAlready = 0	//don't infect someone that already has the virus
-		for(var/datum/disease/D in H.viruses)
-			foundAlready = 1
-		if(H.stat == 2 || foundAlready)
+		if(!H.client)
+			continue
+		if(H.stat == DEAD)
+			continue
+		if(!H.getorgan(/obj/item/organ/appendix)) //Don't give the disease to some who lacks it, only for it to be auto-cured
+			continue
+		var/foundAlready = FALSE	//don't infect someone that already has appendicitis
+		for(var/datum/disease/appendicitis/A in H.viruses)
+			foundAlready = TRUE
+			break
+		if(foundAlready)
 			continue
 
 		var/datum/disease/D = new /datum/disease/appendicitis