Sterilizine now reduces surgery step failure prob (#19337)

* surgery refactor

* Sterilizine now reduces surgery step failure prob

* Adds steriliizne sprayer to medical vendors

code/modules/reagents/chemistry/reagents/alcohol_reagents.dm

@@ -56,8 +56,18 @@ All effects don't start immediately, but rather get worse over time; the rate is
 /datum/reagent/consumable/ethanol/reaction_mob(mob/living/M, method=TOUCH, reac_volume)//Splashing people with ethanol isn't quite as good as fuel.
 	if(!istype(M, /mob/living))
 		return
-	if(method == TOUCH || method == VAPOR)
+
+	if(method in list(TOUCH, VAPOR, PATCH))
 		M.adjust_fire_stacks(reac_volume / 15)
+
+		if(iscarbon(M))
+			var/mob/living/carbon/C = M
+			var/power_multiplier = boozepwr / 65 // Weak alcohol has less sterilizing power
+
+			for(var/s in C.surgeries)
+				var/datum/surgery/S = s
+				S.success_multiplier = max(0.10*power_multiplier, S.success_multiplier)
+				// +10% success propability on each step, useful while operating in less-than-perfect conditions
 	return ..()
 
 /datum/reagent/consumable/ethanol/beer

code/modules/reagents/chemistry/reagents/medicine_reagents.dm

@@ -306,6 +306,12 @@
 			if(show_message)
 				M << "<span class='warning'>Your stomach agonizingly cramps!</span>"
 		else
+			var/mob/living/carbon/C = M
+			for(var/s in C.surgeries)
+				var/datum/surgery/S = s
+				S.success_multiplier = max(0.10, S.success_multiplier)
+				// +10% success propability on each step, useful while operating in less-than-perfect conditions
+
 			if(show_message)
 				M << "<span class='danger'>You feel your wounds fade away to nothing!</span>" //It's a painkiller, after all
 	..()

code/modules/reagents/chemistry/reagents/other_reagents.dm

@@ -387,8 +387,10 @@
 			if(initial(S.blacklisted))
 				continue
 			possible_morphs += S
+
+		var/current_species = H.dna.species.type
 		var/datum/species/mutation = pick(possible_morphs)
-		if(prob(90) && mutation)
+		if(mutation && mutation != current_species)
 			H << "<span class='danger'>The pain subsides. You feel... different.</span>"
 			H.set_species(mutation)
 		else
@@ -607,12 +609,21 @@
 				GG = new/obj/effect/decal/cleanable/greenglow(T)
 			GG.reagents.add_reagent("radium", reac_volume)
 
-/datum/reagent/sterilizine
+/datum/reagent/space_cleaner/sterilizine
 	name = "Sterilizine"
 	id = "sterilizine"
 	description = "Sterilizes wounds in preparation for surgery."
 	color = "#C8A5DC" // rgb: 200, 165, 220
 
+/datum/reagent/space_cleaner/sterilizine/reaction_mob(mob/living/M, method=TOUCH, reac_volume)
+	if(iscarbon(M) && (method in list(TOUCH, VAPOR, PATCH)))
+		var/mob/living/carbon/C = M
+		for(var/s in C.surgeries)
+			var/datum/surgery/S = s
+			S.success_multiplier = max(0.20, S.success_multiplier)
+			// +20% success propability on each step, useful while operating in less-than-perfect conditions
+	..()
+
 /datum/reagent/iron
 	name = "Iron"
 	id = "iron"

code/modules/reagents/reagent_containers/spray.dm

@@ -117,7 +117,6 @@
 	user << "<span class='notice'>You switch the nozzle setting to [stream_mode ? "\"stream\"":"\"spray\""]. You'll now use [amount_per_transfer_from_this] units per use.</span>"
 
 /obj/item/weapon/reagent_containers/spray/verb/empty()
-
 	set name = "Empty Spray Bottle"
 	set category = "Object"
 	set src in usr
@@ -136,6 +135,7 @@
 	desc = "BLAM!-brand non-foaming space cleaner!"
 	list_reagents = list("cleaner" = 250)
 
+//spray tan
 /obj/item/weapon/reagent_containers/spray/spraytan
 	name = "spray tan"
 	volume = 50
@@ -143,6 +143,19 @@
 	list_reagents = list("spraytan" = 50)
 
 
+/obj/item/weapon/reagent_containers/spray/medical
+	name = "medical spray"
+	icon = 'icons/obj/chemical.dmi'
+	icon_state = "medspray"
+	volume = 100
+
+
+/obj/item/weapon/reagent_containers/spray/medical/sterilizer
+	name = "sterilizer spray"
+	desc = "Spray bottle loaded with non-toxic sterilizer. Useful in preparation for surgery."
+	list_reagents = list("sterilizine" = 100)
+
+
 //pepperspray
 /obj/item/weapon/reagent_containers/spray/pepper
 	name = "pepperspray"