More Reagent Cleanup

code/modules/reagents/Chemistry-Holder.dm

@@ -10,6 +10,8 @@ var/const/INGEST = 2
 	var/total_volume = 0
 	var/maximum_volume = 100
 	var/atom/my_atom = null
+	var/chem_temp = 300
+	var/list/datum/reagent/addiction_list = new/list()
 
 /datum/reagents/New(maximum=100)
 	maximum_volume = maximum
@@ -56,17 +58,19 @@ var/const/INGEST = 2
 	current_list_element = rand(1,reagent_list.len)
 
 	while(total_transfered != amount)
-		if(total_transfered >= amount) break
-		if(total_volume <= 0 || !reagent_list.len) break
+		if(total_transfered >= amount)
+			break
+		if(total_volume <= 0 || !reagent_list.len)
+			break
 
 		if(current_list_element > reagent_list.len) current_list_element = 1
 		var/datum/reagent/current_reagent = reagent_list[current_list_element]
 
-		src.remove_reagent(current_reagent.id, min(1, amount - total_transfered))
+		remove_reagent(current_reagent.id, min(1, amount - total_transfered))
 
 		current_list_element++
 		total_transfered++
-		src.update_total()
+		update_total()
 
 	handle_reactions()
 	return total_transfered
@@ -94,7 +98,7 @@ var/const/INGEST = 2
 /datum/reagents/proc/trans_to(target, amount=1, multiplier=1, preserve_data=1)//if preserve_data=0, the reagents data will be lost. Usefull if you use data for some strange stuff and don't want it to be transferred.
 	if(!target)
 		return
-	if(src.total_volume <= 0)
+	if(total_volume <= 0)
 		return
 	var/datum/reagents/R
 	if(istype(target, /obj))
@@ -102,7 +106,7 @@ var/const/INGEST = 2
 		if(!O.reagents )
 			return
 		R = O.reagents
-	else if(istype(target, /mob/living))
+	else if(isliving(target))
 		var/mob/living/M = target
 		if(!M.reagents)
 			return
@@ -112,10 +116,10 @@ var/const/INGEST = 2
 	else
 		return
 
-	amount = min(min(amount, src.total_volume), R.maximum_volume-R.total_volume)
-	var/part = amount / src.total_volume
+	amount = min(min(amount, total_volume), R.maximum_volume-R.total_volume)
+	var/part = amount / total_volume
 	var/trans_data = null
-	for(var/datum/reagent/current_reagent in src.reagent_list)
+	for(var/datum/reagent/current_reagent in reagent_list)
 		if(!current_reagent)
 			continue
 		if(current_reagent.id == "blood" && ishuman(target))
@@ -126,59 +130,59 @@ var/const/INGEST = 2
 		if(preserve_data)
 			trans_data = copy_data(current_reagent)
 
-		R.add_reagent(current_reagent.id, (current_reagent_transfer * multiplier), trans_data, src.chem_temp)
-		src.remove_reagent(current_reagent.id, current_reagent_transfer)
+		R.add_reagent(current_reagent.id, (current_reagent_transfer * multiplier), trans_data, chem_temp)
+		remove_reagent(current_reagent.id, current_reagent_transfer)
 
-	src.update_total()
+	update_total()
 	R.update_total()
 	R.handle_reactions()
-	src.handle_reactions()
+	handle_reactions()
 	return amount
 
 /datum/reagents/proc/copy_to(obj/target, amount=1, multiplier=1, preserve_data=1, safety = 0)
 	if(!target)
 		return
-	if(!target.reagents || src.total_volume<=0)
+	if(!target.reagents || total_volume<=0)
 		return
 	var/datum/reagents/R = target.reagents
-	amount = min(min(amount, src.total_volume), R.maximum_volume-R.total_volume)
-	var/part = amount / src.total_volume
+	amount = min(min(amount, total_volume), R.maximum_volume-R.total_volume)
+	var/part = amount / total_volume
 	var/trans_data = null
-	for(var/datum/reagent/current_reagent in src.reagent_list)
+	for(var/datum/reagent/current_reagent in reagent_list)
 		var/current_reagent_transfer = current_reagent.volume * part
 		if(preserve_data)
 			trans_data = copy_data(current_reagent)
 		R.add_reagent(current_reagent.id, (current_reagent_transfer * multiplier), trans_data)
 
-	src.update_total()
+	update_total()
 	R.update_total()
 	R.handle_reactions()
-	src.handle_reactions()
+	handle_reactions()
 	return amount
 
 /datum/reagents/proc/trans_id_to(obj/target, reagent, amount=1, preserve_data=1)//Not sure why this proc didn't exist before. It does now! /N
 	if(!target)
 		return
-	if(!target.reagents || src.total_volume<=0 || !src.get_reagent_amount(reagent))
+	if(!target.reagents || total_volume<=0 || !get_reagent_amount(reagent))
 		return
 
 	var/datum/reagents/R = target.reagents
-	if(src.get_reagent_amount(reagent)<amount)
-		amount = src.get_reagent_amount(reagent)
+	if(get_reagent_amount(reagent)<amount)
+		amount = get_reagent_amount(reagent)
 	amount = min(amount, R.maximum_volume-R.total_volume)
 	var/trans_data = null
-	for(var/datum/reagent/current_reagent in src.reagent_list)
+	for(var/datum/reagent/current_reagent in reagent_list)
 		if(current_reagent.id == reagent)
 			if(preserve_data)
 				trans_data = copy_data(current_reagent)
-			R.add_reagent(current_reagent.id, amount, trans_data, src.chem_temp)
-			src.remove_reagent(current_reagent.id, amount, 1)
+			R.add_reagent(current_reagent.id, amount, trans_data, chem_temp)
+			remove_reagent(current_reagent.id, amount, 1)
 			break
 
-	src.update_total()
+	update_total()
 	R.update_total()
 	R.handle_reactions()
-	//src.handle_reactions() Don't need to handle reactions on the source since you're (presumably isolating and) transferring a specific reagent.
+	//handle_reactions() Don't need to handle reactions on the source since you're (presumably isolating and) transferring a specific reagent.
 	return amount
 
 /*
@@ -201,11 +205,11 @@ var/const/INGEST = 2
 		if(preserve_data)
 			trans_data = current_reagent.data
 		R.add_reagent(current_reagent.id, (1 * multiplier), trans_data)
-		src.remove_reagent(current_reagent.id, 1)
+		remove_reagent(current_reagent.id, 1)
 
 		current_list_element++
 		total_transfered++
-		src.update_total()
+		update_total()
 		R.update_total()
 	R.handle_reactions()
 	handle_reactions()
@@ -225,19 +229,18 @@ var/const/INGEST = 2
 	update_total()
 
 /datum/reagents/proc/handle_reactions()
-	if(my_atom.flags & NOREACT) return //Yup, no reactions here. No siree.
+	if(my_atom.flags & NOREACT)
+		return //Yup, no reactions here. No siree.
 
 	var/reaction_occured = 0
 	do
 		reaction_occured = 0
 		for(var/datum/reagent/R in reagent_list) // Usually a small list
 			for(var/reaction in chemical_reactions_list[R.id]) // Was a big list but now it should be smaller since we filtered it with our reagent id
-
 				if(!reaction)
 					continue
 
 				var/datum/chemical_reaction/C = reaction
-
 				var/total_required_reagents = C.required_reagents.len
 				var/total_matching_reagents = 0
 				var/total_required_catalysts = C.required_catalysts.len
@@ -248,11 +251,13 @@ var/const/INGEST = 2
 				var/min_temp = C.min_temp			//Minimum temperature required for the reaction to occur (heat to/above this)
 				var/max_temp = C.max_temp			//Maximum temperature allowed for the reaction to occur (cool to/below this)
 				for(var/B in C.required_reagents)
-					if(!has_reagent(B, C.required_reagents[B]))	break
+					if(!has_reagent(B, C.required_reagents[B]))
+						break
 					total_matching_reagents++
 					multipliers += round(get_reagent_amount(B) / C.required_reagents[B])
 				for(var/B in C.required_catalysts)
-					if(!has_reagent(B, C.required_catalysts[B]))	break
+					if(!has_reagent(B, C.required_catalysts[B]))
+						break
 					total_matching_catalysts++
 
 				if(!C.required_container)
@@ -265,17 +270,11 @@ var/const/INGEST = 2
 				if(!C.required_other)
 					matching_other = 1
 
-				else
-					/*if(istype(my_atom, /obj/item/slime_core))
-						var/obj/item/slime_core/M = my_atom
+				else if(istype(my_atom, /obj/item/slime_extract))
+					var/obj/item/slime_extract/M = my_atom
 
-						if(M.POWERFLAG == C.required_other && M.Uses > 0) // added a limit to slime cores -- Muskets requested this
-							matching_other = 1*/
-					if(istype(my_atom, /obj/item/slime_extract))
-						var/obj/item/slime_extract/M = my_atom
-
-						if(M.Uses > 0) // added a limit to slime cores -- Muskets requested this
-							matching_other = 1
+					if(M.Uses > 0) // added a limit to slime cores -- Muskets requested this
+						matching_other = 1
 
 				if(min_temp == 0)
 					min_temp = chem_temp
@@ -302,14 +301,14 @@ var/const/INGEST = 2
 					var/list/seen = viewers(4, get_turf(my_atom))
 					for(var/mob/M in seen)
 						if(!C.no_message)
-							to_chat(M, "\blue [bicon(my_atom)] [C.mix_message]")
+							to_chat(M, "<span class='notice'>[bicon(my_atom)] [C.mix_message]</span>")
 
 					if(istype(my_atom, /obj/item/slime_extract))
 						var/obj/item/slime_extract/ME2 = my_atom
 						ME2.Uses--
 						if(ME2.Uses <= 0) // give the notification that the slime core is dead
 							for(var/mob/M in seen)
-								to_chat(M, "\blue [bicon(my_atom)] The [my_atom]'s power is consumed in the reaction.")
+								to_chat(M, "<span class='notice'>[bicon(my_atom)] The [my_atom]'s power is consumed in the reaction.</span>")
 								ME2.name = "used slime extract"
 								ME2.desc = "This extract has been used up."
 
@@ -334,7 +333,7 @@ var/const/INGEST = 2
 	for(var/A in reagent_list)
 		var/datum/reagent/R = A
 		if(R.id == reagent)
-			if(istype(my_atom, /mob/living))
+			if(isliving(my_atom))
 				var/mob/living/M = my_atom
 				R.reagent_deleted(M)
 			reagent_list -= A
@@ -361,10 +360,8 @@ var/const/INGEST = 2
 		del_reagent(R.id)
 	return 0
 
-/datum/reagents/proc/reaction_check(mob/M, datum/reagent/R)
+/datum/reagents/proc/reaction_check(mob/living/M, datum/reagent/R)
 	var/can_process = 0
-	if(!istype(M, /mob/living))		//Non-living mobs can't metabolize reagents, so don't bother trying (runtime safety check)
-		return can_process
 	if(ishuman(M))
 		var/mob/living/carbon/human/H = M
 		//Check if this mob's species is set and can process this type of reagent
@@ -389,45 +386,28 @@ var/const/INGEST = 2
 	switch(method)
 		if(TOUCH)
 			for(var/datum/reagent/R in reagent_list)
-				if(ismob(A))
-					if(!R)
-						return
+				if(isliving(A))
 					var/check = reaction_check(A, R)
 					if(!check)
 						continue
 					else
 						R.reaction_mob(A, TOUCH, R.volume*volume_modifier)
 				if(isturf(A))
-					if(!R)
-						return
-					else
-						R.reaction_turf(A, R.volume*volume_modifier)
+					R.reaction_turf(A, R.volume*volume_modifier)
 				if(isobj(A))
-					if(!R)
-						return
-					else
-						R.reaction_obj(A, R.volume*volume_modifier)
+					R.reaction_obj(A, R.volume*volume_modifier)
 		if(INGEST)
 			for(var/datum/reagent/R in reagent_list)
-				if(ismob(A) && R)
-					if(!R)
-						return
+				if(isliving(A))
 					var/check = reaction_check(A, R)
 					if(!check)
 						continue
 					else
 						R.reaction_mob(A, INGEST, R.volume*volume_modifier)
-				if(isturf(A) && R)
-					if(!R)
-						return
-					else
-						R.reaction_turf(A, R.volume*volume_modifier)
-				if(isobj(A) && R)
-					if(!R)
-						return
-					else
-						R.reaction_obj(A, R.volume*volume_modifier)
-	return
+				if(isturf(A))
+					R.reaction_turf(A, R.volume*volume_modifier)
+				if(isobj(A))
+					R.reaction_obj(A, R.volume*volume_modifier)
 
 /datum/reagents/proc/add_reagent_list(list/list_reagents, list/data=null) // Like add_reagent but you can enter a list. Format it like this: list("toxin" = 10, "beer" = 15)
 	for(var/r_id in list_reagents)
@@ -435,10 +415,12 @@ var/const/INGEST = 2
 		add_reagent(r_id, amt, data)
 
 /datum/reagents/proc/add_reagent(reagent, amount, list/data=null, reagtemp = 300)
-	if(!isnum(amount)) return 1
+	if(!isnum(amount))
+		return 1
 	update_total()
 	if(total_volume + amount > maximum_volume) amount = (maximum_volume - total_volume) //Doesnt fit in. Make it disappear. Shouldnt happen. Will happen.
-	if(amount <= 0) return 0
+	if(amount <= 0)
+		return 0
 	chem_temp = round(((amount * reagtemp) + (total_volume * chem_temp)) / (total_volume + amount)) //equalize with new chems
 
 	for(var/A in reagent_list)
@@ -476,7 +458,8 @@ var/const/INGEST = 2
 
 /datum/reagents/proc/remove_reagent(reagent, amount, safety)//Added a safety check for the trans_id_to
 
-	if(!isnum(amount)) return 1
+	if(!isnum(amount))
+		return 1
 
 	for(var/A in reagent_list)
 		var/datum/reagent/R = A
@@ -495,10 +478,13 @@ var/const/INGEST = 2
 	for(var/A in reagent_list)
 		var/datum/reagent/R = A
 		if(R.id == reagent)
-			if(!amount) return R
+			if(!amount)
+				return R
 			else
-				if(R.volume >= amount) return R
-				else return 0
+				if(R.volume >= amount)
+					return R
+				else
+					return 0
 
 	return 0
 
@@ -522,7 +508,8 @@ var/const/INGEST = 2
 	. = locate(type) in reagent_list
 
 /datum/reagents/proc/remove_all_type(reagent_type, amount, strict = 0, safety = 1) // Removes all reagent of X type. @strict set to 1 determines whether the childs of the type are included.
-	if(!isnum(amount)) return 1
+	if(!isnum(amount))
+		return 1
 
 	var/has_removed_reagent = 0
 
@@ -566,8 +553,10 @@ var/const/INGEST = 2
 			D.data = new_data
 
 /datum/reagents/proc/copy_data(datum/reagent/current_reagent)
-	if(!current_reagent || !current_reagent.data) return null
-	if(!istype(current_reagent.data, /list)) return current_reagent.data
+	if(!current_reagent || !current_reagent.data)
+		return null
+	if(!istype(current_reagent.data, /list))
+		return current_reagent.data
 
 	var/list/trans_data = current_reagent.data.Copy()
 

code/modules/reagents/Chemistry-Machinery.dm

@@ -167,7 +167,7 @@
 
 	if(href_list["dispense"])
 		if(dispensable_reagents.Find(href_list["dispense"]) && beaker != null)
-			var/obj/item/weapon/reagent_containers/glass/B = src.beaker
+			var/obj/item/weapon/reagent_containers/glass/B = beaker
 			var/datum/reagents/R = B.reagents
 			var/space = R.maximum_volume - R.total_volume
 
@@ -214,12 +214,12 @@
 		to_chat(user, "<span class='notice'>You fix [src].</span>")
 		return
 
-	if(src.beaker)
+	if(beaker)
 		to_chat(user, "<span class='warning'>Something is already loaded into the machine.</span>")
 		return
 
 	if(istype(B, /obj/item/weapon/reagent_containers/glass) || istype(B, /obj/item/weapon/reagent_containers/food/drinks))
-		src.beaker =  B
+		beaker =  B
 		if(!user.drop_item())
 			to_chat(user, "<span class='warning'>\The [B] is stuck to you!</span>")
 			return
@@ -248,10 +248,10 @@
 			return
 
 /obj/machinery/chem_dispenser/attack_ai(mob/user)
-	return src.attack_hand(user)
+	return attack_hand(user)
 
 /obj/machinery/chem_dispenser/attack_ghost(mob/user)
-	return src.attack_hand(user)
+	return attack_hand(user)
 
 /obj/machinery/chem_dispenser/attack_hand(mob/user)
 	if(stat & BROKEN)
@@ -430,13 +430,13 @@
 
 	if(istype(B, /obj/item/weapon/reagent_containers/glass) || istype(B, /obj/item/weapon/reagent_containers/food/drinks/drinkingglass))
 
-		if(src.beaker)
+		if(beaker)
 			to_chat(user, "<span class='warning'>A beaker is already loaded into the machine.</span>")
 			return
 		if(!user.drop_item())
 			to_chat(user, "<span class='warning'>\The [B] is stuck to you!</span>")
 			return
-		src.beaker = B
+		beaker = B
 		B.forceMove(src)
 		to_chat(user, "<span class='notice'>You add the beaker to the machine!</span>")
 		nanomanager.update_uis(src)
@@ -444,14 +444,14 @@
 
 	else if(istype(B, /obj/item/weapon/storage/pill_bottle))
 
-		if(src.loaded_pill_bottle)
+		if(loaded_pill_bottle)
 			to_chat(user, "<span class='warning'>A pill bottle is already loaded into the machine.</span>")
 			return
 
 		if(!user.drop_item())
 			to_chat(user, "<span class='warning'>\The [B] is stuck to you!</span>")
 			return
-		src.loaded_pill_bottle = B
+		loaded_pill_bottle = B
 		B.forceMove(src)
 		to_chat(user, "<span class='notice'>You add the pill bottle into the dispenser slot!</span>")
 		nanomanager.update_uis(src)
@@ -461,13 +461,13 @@
 	if(..())
 		return 1
 
-	src.add_fingerprint(usr)
+	add_fingerprint(usr)
 	usr.set_machine(src)
 
 
 	if(href_list["ejectp"])
 		if(loaded_pill_bottle)
-			loaded_pill_bottle.forceMove(src.loc)
+			loaded_pill_bottle.forceMove(loc)
 			loaded_pill_bottle = null
 	else if(href_list["close"])
 		usr << browse(null, "window=chem_master")
@@ -476,12 +476,12 @@
 		return
 
 	if(href_list["print_p"])
-		if(!(src.printing))
-			src.printing = 1
+		if(!(printing))
+			printing = 1
 			for(var/mob/O in viewers(usr))
 				O.show_message("\blue \the [src] rattles and prints out a sheet of paper.", 1)
 			playsound(loc, "sound/goonstation/machines/printer_dotmatrix.ogg", 50, 1)
-			var/obj/item/weapon/paper/P = new /obj/item/weapon/paper( src.loc )
+			var/obj/item/weapon/paper/P = new /obj/item/weapon/paper(loc)
 			P.info = "<CENTER><B>Chemical Analysis</B></CENTER><BR>"
 			P.info += "<b>Time of analysis:</b> [worldtime2text(world.time)]<br><br>"
 			P.info += "<b>Chemical name:</b> [href_list["name"]]<br>"
@@ -499,7 +499,7 @@
 				P.info += "<b>Description:</b> [href_list["desc"]]"
 			P.info += "<br><br><b>Notes:</b><br>"
 			P.name = "Chemical Analysis - [href_list["name"]]"
-			src.printing = null
+			printing = null
 
 	if(beaker)
 		var/datum/reagents/R = beaker.reagents
@@ -537,7 +537,7 @@
 			var/id = href_list["addcustom"]
 			useramount = input("Select the amount to transfer.", 30, useramount) as num
 			useramount = isgoodnumber(useramount)
-			src.Topic(null, list("amount" = "[useramount]", "add" = "[id]"))
+			Topic(null, list("amount" = "[useramount]", "add" = "[id]"))
 
 		else if(href_list["remove"])
 
@@ -555,7 +555,7 @@
 			var/id = href_list["removecustom"]
 			useramount = input("Select the amount to transfer.", 30, useramount) as num
 			useramount = isgoodnumber(useramount)
-			src.Topic(null, list("amount" = "[useramount]", "remove" = "[id]"))
+			Topic(null, list("amount" = "[useramount]", "remove" = "[id]"))
 
 		else if(href_list["toggle"])
 			mode = !mode
@@ -586,23 +586,23 @@
 					return
 				name = reject_bad_text(name)
 				while(count--)
-					var/obj/item/weapon/reagent_containers/food/pill/P = new/obj/item/weapon/reagent_containers/food/pill(src.loc)
+					var/obj/item/weapon/reagent_containers/food/pill/P = new/obj/item/weapon/reagent_containers/food/pill(loc)
 					if(!name) name = reagents.get_master_reagent_name()
 					P.name = "[name] pill"
 					P.pixel_x = rand(-7, 7) //random position
 					P.pixel_y = rand(-7, 7)
 					P.icon_state = "pill"+pillsprite
 					reagents.trans_to(P,amount_per_pill)
-					if(src.loaded_pill_bottle)
+					if(loaded_pill_bottle)
 						if(loaded_pill_bottle.contents.len < loaded_pill_bottle.storage_slots)
 							P.forceMove(loaded_pill_bottle)
-							src.updateUsrDialog()
+							updateUsrDialog()
 			else
 				var/name = input(usr,"Name:","Name your bag!",reagents.get_master_reagent_name()) as text|null
 				if(!name)
 					return
 				name = reject_bad_text(name)
-				var/obj/item/weapon/reagent_containers/food/condiment/pack/P = new/obj/item/weapon/reagent_containers/food/condiment/pack(src.loc)
+				var/obj/item/weapon/reagent_containers/food/condiment/pack/P = new/obj/item/weapon/reagent_containers/food/condiment/pack(loc)
 				if(!name) name = reagents.get_master_reagent_name()
 				P.originalname = name
 				P.name = "[name] pack"
@@ -627,7 +627,7 @@
 				name = reject_bad_text(name)
 				var/is_medical_patch = chemical_safety_check(reagents)
 				while(count--)
-					var/obj/item/weapon/reagent_containers/food/pill/patch/P = new/obj/item/weapon/reagent_containers/food/pill/patch(src.loc)
+					var/obj/item/weapon/reagent_containers/food/pill/patch/P = new/obj/item/weapon/reagent_containers/food/pill/patch(loc)
 					if(!name) name = reagents.get_master_reagent_name()
 					P.name = "[name] patch"
 					P.pixel_x = rand(-7, 7) //random position
@@ -642,7 +642,7 @@
 				if(!name)
 					return
 				name = reject_bad_text(name)
-				var/obj/item/weapon/reagent_containers/glass/bottle/P = new/obj/item/weapon/reagent_containers/glass/bottle(src.loc)
+				var/obj/item/weapon/reagent_containers/glass/bottle/P = new/obj/item/weapon/reagent_containers/glass/bottle(loc)
 				if(!name) name = reagents.get_master_reagent_name()
 				P.name = "[name] bottle"
 				P.pixel_x = rand(-7, 7) //random position
@@ -650,7 +650,7 @@
 				P.icon_state = "bottle"+bottlesprite
 				reagents.trans_to(P,30)
 			else
-				var/obj/item/weapon/reagent_containers/food/condiment/P = new/obj/item/weapon/reagent_containers/food/condiment(src.loc)
+				var/obj/item/weapon/reagent_containers/food/condiment/P = new/obj/item/weapon/reagent_containers/food/condiment(loc)
 				reagents.trans_to(P,50)
 		else if(href_list["change_pill"])
 			#define MAX_PILL_SPRITE 20 //max icon state of the pill sprites
@@ -693,10 +693,10 @@
 	return
 
 /obj/machinery/chem_master/attack_ai(mob/user)
-	return src.attack_hand(user)
+	return attack_hand(user)
 
 /obj/machinery/chem_master/attack_ghost(mob/user)
-	return src.attack_hand(user)
+	return attack_hand(user)
 
 /obj/machinery/chem_master/attack_hand(mob/user)
 	if(..())
@@ -733,7 +733,7 @@
 
 	ui = nanomanager.try_update_ui(user, src, ui_key, ui, data, force_open)
 	if(!ui)
-		ui = new(user, src, ui_key, "chem_master.tmpl", src.name, 575, 400)
+		ui = new(user, src, ui_key, "chem_master.tmpl", name, 575, 400)
 		ui.set_initial_data(data)
 		ui.open()
 
@@ -793,7 +793,7 @@
 			default_deconstruction_crowbar(B)
 			return 1
 		else
-			to_chat(user, "<span class='warning'>You can't use the [src.name] while it's panel is opened!</span>")
+			to_chat(user, "<span class='warning'>You can't use the [name] while it's panel is opened!</span>")
 			return 1
 	else
 		..()
@@ -886,10 +886,10 @@
 			if(!user.drop_item())
 				to_chat(user, "<span class='warning'>\The [O] is stuck to you!</span>")
 				return
-			src.beaker =  O
+			beaker =  O
 			O.forceMove(src)
 			update_icon()
-			src.updateUsrDialog()
+			updateUsrDialog()
 			return 0
 
 	if(holdingitems && holdingitems.len >= limit)
@@ -910,7 +910,7 @@
 		if(!O.contents.len)
 			to_chat(user, "<span class='notice'>You empty the plant bag into the All-In-One grinder.</span>")
 
-		src.updateUsrDialog()
+		updateUsrDialog()
 		return 0
 
 
@@ -921,7 +921,7 @@
 	user.unEquip(O)
 	O.forceMove(src)
 	holdingitems += O
-	src.updateUsrDialog()
+	updateUsrDialog()
 	return 0
 
 /obj/machinery/reagentgrinder/attack_ai(mob/user)
@@ -989,7 +989,7 @@
 			eject()
 		if("detach")
 			detach()
-	src.updateUsrDialog()
+	updateUsrDialog()
 	return
 
 /obj/machinery/reagentgrinder/proc/detach()
@@ -998,7 +998,7 @@
 		return
 	if(!beaker)
 		return
-	beaker.forceMove(src.loc)
+	beaker.forceMove(loc)
 	beaker = null
 	update_icon()
 
@@ -1010,7 +1010,7 @@
 		return
 
 	for(var/obj/item/O in holdingitems)
-		O.forceMove(src.loc)
+		O.forceMove(loc)
 		holdingitems -= O
 	holdingitems = list()
 
@@ -1071,7 +1071,7 @@
 		return
 	if(!beaker || (beaker && beaker.reagents.total_volume >= beaker.reagents.maximum_volume))
 		return
-	playsound(src.loc, 'sound/machines/juicer.ogg', 20, 1)
+	playsound(loc, 'sound/machines/juicer.ogg', 20, 1)
 	var/offset = prob(50) ? -2 : 2
 	animate(src, pixel_x = pixel_x + offset, time = 0.2, loop = 200) //start shaking
 	inuse = 1
@@ -1111,7 +1111,7 @@
 		return
 	if(!beaker || (beaker && beaker.reagents.total_volume >= beaker.reagents.maximum_volume))
 		return
-	playsound(src.loc, 'sound/machines/blender.ogg', 50, 1)
+	playsound(loc, 'sound/machines/blender.ogg', 50, 1)
 	var/offset = prob(50) ? -2 : 2
 	animate(src, pixel_x = pixel_x + offset, time = 0.2, loop = 200) //start shaking
 	inuse = 1

code/modules/reagents/Chemistry-Readme.dm

@@ -24,22 +24,22 @@ About the Holder:
 	The holder (reagents datum) is the datum that holds a list of all reagents
 	currently in the object.It also has all the procs needed to manipulate reagents
 
-		remove_any(var/amount)
+		remove_any(amount)
 			This proc removes reagents from the holder until the passed amount
 			is matched. It'll try to remove some of ALL reagents contained.
 
-		trans_to(var/obj/target, var/amount)
+		trans_to(obj/target, amount)
 			This proc equally transfers the contents of the holder to another
 			objects holder. You need to pass it the object (not the holder) you want
 			to transfer to and the amount you want to transfer. Its return value is the
 			actual amount transfered (if one of the objects is full/empty)
 
-		trans_id_to(var/obj/target, var/reagent, var/amount)
+		trans_id_to(obj/target, reagent, amount)
 			Same as above but only for a specific reagent in the reagent list.
 			If the specified amount is greater than what is available, it will use
 			the amount of the reagent that is available. If no reagent exists, returns null.
 
-		metabolize(var/mob/M)
+		metabolize(mob/living/M)
 			This proc is called by the mobs life proc. It simply calls on_mob_life for
 			all contained reagents. You shouldnt have to use this one directly.
 
@@ -49,16 +49,13 @@ About the Holder:
 			Currently, this proc is automatically called by trans_to.
 			- Modified from the original to preserve reagent data across reactions (originally for xenoarchaeology)
 
-		isolate_reagent(var/reagent)
+		isolate_reagent(reagent)
 			Pass it a reagent id and it will remove all reagents but that one.
 			It's that simple.
 
-		del_reagent(var/reagent)
+		del_reagent(reagent)
 			Completely remove the reagent with the matching id.
 
-		reaction_fire(exposed_temp)
-			Simply calls the reaction_fire procs of all contained reagents.
-
 		update_total()
 			This one simply updates the total volume of the holder.
 			(the volume of all reagents added together)
@@ -66,7 +63,7 @@ About the Holder:
 		clear_reagents()
 			This proc removes ALL reagents from the holder.
 
-		reaction(var/atom/A, var/method=TOUCH, var/volume_modifier=0)
+		reaction(atom/A, method=TOUCH, volume_modifier=0)
 			This proc calls the appropriate reaction procs of the reagents.
 			I.e. if A is an object, it will call the reagents reaction_obj
 			proc. The method var is used for reaction on mobs. It simply tells
@@ -79,22 +76,22 @@ About the Holder:
 			contact with the reagents of a holder. (in the 'splash' part of a beaker i.e.)
 			More on the reaction in the reagent part of this readme.
 
-		add_reagent(var/reagent, var/amount, var/data)
+		add_reagent(reagent, amount, data)
 			Attempts to add X of the matching reagent to the holder.
 			You wont use this much. Mostly in new procs for pre-filled
 			objects.
 
-		remove_reagent(var/reagent, var/amount)
+		remove_reagent(reagent, amount)
 			The exact opposite of the add_reagent proc.
 			- Modified from original to return the reagent's data, in order to preserve reagent data across reactions (originally for xenoarchaeology)
 
-		has_reagent(var/reagent, var/amount)
+		has_reagent(reagent, amount)
 			Returns 1 if the holder contains this reagent.
 			Or 0 if not.
 			If you pass it an amount it will additionally check
 			if the amount is matched. This is optional.
 
-		get_reagent_amount(var/reagent)
+		get_reagent_amount(reagent)
 			Returns the amount of the matching reagent inside the
 			holder. Returns 0 if the reagent is missing.
 
@@ -123,26 +120,27 @@ About Reagents:
 	Reagents are all the things you can mix and fille in bottles etc. This can be anything from
 	rejuvs over water to ... iron. Each reagent also has a few procs - i'll explain those below.
 
-		reaction_mob(var/mob/M, var/method=TOUCH)
+		reaction_mob(mob/living/M, method=TOUCH)
 			This is called by the holder's reation proc.
 			This version is only called when the reagent
 			reacts with a mob. The method var can be either
 			TOUCH or INGEST. You'll want to put stuff like
-			acid-facemelting in here.
+			acid-facemelting in here. Should only ever be
+			called, directly, on living mobs.
 
-		reaction_obj(var/obj/O)
+		reaction_obj(obj/O)
 			This is called by the holder's reation proc.
 			This version is called when the reagents reacts
 			with an object. You'll want to put stuff like
 			object melting in here ... or something. i dunno.
 
-		reaction_turf(var/turf/T)
+		reaction_turf(turf/T)
 			This is called by the holder's reation proc.
 			This version is called when the reagents reacts
 			with a turf. You'll want to put stuff like extra
 			slippery floors for lube or something in here.
 
-		on_mob_life(var/mob/M)
+		on_mob_life(mob/living/M)
 			This proc is called everytime the mobs life proc executes.
 			This is the place where you put damage for toxins ,
 			drowsyness for sleep toxins etc etc.
@@ -166,8 +164,7 @@ About Reagents:
 			The name of the reagent.
 
 		data
-			This var can be used for whatever the fuck you want. I used it for the sleep
-			toxins to make them work slowly instead of instantly. You could also use this
+			This var can be used for whatever the fuck you want.You could use this
 			for DNA in a blood reagent or ... well whatever you want.
 
 		color
@@ -185,7 +182,7 @@ About Recipes:
 	Recipes are simple datums that contain a list of required reagents and a result.
 	They also have a proc that is called when the recipe is matched.
 
-		on_reaction(var/datum/reagents/holder, var/created_volume)
+		on_reaction(datum/reagents/holder, created_volume)
 			This proc is called when the recipe is matched.
 			You'll want to add explosions etc here.
 			To find the location you'll have to do something
@@ -232,7 +229,7 @@ About the Tools:
 		R.my_atom = src, <<< set the holders my_atom to src so that we know where we are.
 
 		This can also be done by calling a convenience proc:
-		atom/proc/create_reagents(var/max_volume)
+		atom/proc/create_reagents(max_volume)
 
 	Other important stuff:
 

code/modules/reagents/newchem/Blob-Reagents.dm

@@ -35,8 +35,7 @@
 		volume = ..()
 		M.apply_damage(0.6*volume, BURN)
 		M.IgniteMob()
-		if(isliving(M))
-			M.emote("scream")
+		M.emote("scream")
 
 /datum/reagent/blob/envenomed_filaments //toxin, hallucination, and some bonus spore toxin
 	name = "Envenomed Filaments"

code/modules/reagents/newchem/chem_heater.dm

@@ -100,8 +100,8 @@
 	ui_interact(user)
 
 /obj/machinery/chem_heater/attack_ai(mob/user)
-	src.add_hiddenprint(user)
-	return src.attack_hand(user)
+	add_hiddenprint(user)
+	return attack_hand(user)
 
 /obj/machinery/chem_heater/Topic(href, href_list)
 	if(..())

code/modules/reagents/newchem/drinks.dm

@@ -133,9 +133,7 @@
 			M.fakevomit()
 	..()
 
-/datum/reagent/ethanol/synthanol/reaction_mob(mob/M, method=TOUCH, volume)
-	if(!istype(M, /mob/living))
-		return
+/datum/reagent/ethanol/synthanol/reaction_mob(mob/living/M, method=TOUCH, volume)
 	if(M.isSynthetic())
 		return
 	if(method == INGEST)

code/modules/reagents/newchem/drugs.dm

@@ -522,9 +522,7 @@
 	result_amount = 4
 	mix_message = "The mixture swirls around excitedly!"
 
-/datum/reagent/fliptonium/reaction_mob(mob/M, method=TOUCH, volume)
-	if(!istype(M, /mob/living))
-		return
+/datum/reagent/fliptonium/reaction_mob(mob/living/M, method=TOUCH, volume)
 	if(method == INGEST || method == TOUCH)
 		M.SpinAnimation(speed = 12, loops = -1)
 	..()

code/modules/reagents/newchem/food.dm

@@ -6,9 +6,7 @@
 	color = "#63DE63"
 	metabolization_rate = 0.4
 
-/datum/reagent/questionmark/reaction_mob(mob/M, method=TOUCH, volume)
-	if(!istype(M, /mob/living))
-		return
+/datum/reagent/questionmark/reaction_mob(mob/living/M, method=TOUCH, volume)
 	if(method == INGEST)
 		M.Stun(2)
 		M.Weaken(2)
@@ -45,9 +43,7 @@
 	mix_message = "The citrus juices begin to blend together."
 	mix_sound = 'sound/goonstation/misc/drinkfizz.ogg'
 
-/datum/reagent/triple_citrus/reaction_mob(mob/living/carbon/M, method=TOUCH, volume)
-	if(!istype(M, /mob/living/carbon))
-		return
+/datum/reagent/triple_citrus/reaction_mob(mob/living/M, method=TOUCH, volume)
 	if(method == INGEST)
 		M.adjustToxLoss(-rand(1,2))
 
@@ -134,8 +130,7 @@
 	..()
 
 /datum/reagent/chocolate/reaction_turf(turf/T, volume)
-	src = null
-	if(volume >= 5)
+	if(volume >= 5 && !istype(T, /turf/space))
 		new /obj/item/weapon/reagent_containers/food/snacks/choc_pile(T)
 
 /datum/reagent/mugwort
@@ -146,7 +141,7 @@
 	color = "#21170E"
 
 /datum/reagent/mugwort/on_mob_life(mob/living/M)
-	if(istype(M, /mob/living/carbon/human) && M.mind)
+	if(ishuman(M) && M.mind)
 		if(M.mind.special_role == "Wizard")
 			M.adjustToxLoss(-1*REM)
 			M.adjustOxyLoss(-1*REM)
@@ -177,9 +172,7 @@
 	reagent_state = LIQUID
 	color = "#C87D28"
 
-/datum/reagent/fungus/reaction_mob(mob/M, method=TOUCH, volume)
-	if(!istype(M, /mob/living))
-		return
+/datum/reagent/fungus/reaction_mob(mob/living/M, method=TOUCH, volume)
 	if(method == INGEST)
 		var/ranchance = rand(1,10)
 		if(ranchance == 1)
@@ -211,9 +204,7 @@
 	color = "#F5F5F5"
 	metabolization_rate = 0.2
 
-/datum/reagent/msg/reaction_mob(mob/M, method=TOUCH, volume)
-	if(!istype(M, /mob/living))
-		return
+/datum/reagent/msg/reaction_mob(mob/living/M, method=TOUCH, volume)
 	if(method == INGEST)
 		to_chat(M, "<span class='notice'>That tasted amazing!</span>")
 
@@ -242,8 +233,7 @@
 	..()
 
 /datum/reagent/cheese/reaction_turf(turf/T, volume)
-	src = null
-	if(volume >= 5)
+	if(volume >= 5 && !istype(T, /turf/space))
 		new /obj/item/weapon/reagent_containers/food/snacks/cheesewedge(T)
 
 /datum/chemical_reaction/cheese
@@ -286,8 +276,7 @@
 	..()
 
 /datum/reagent/weird_cheese/reaction_turf(turf/T, volume)
-	src = null
-	if(volume >= 5)
+	if(volume >= 5 && !istype(T, /turf/space))
 		new /obj/item/weapon/reagent_containers/food/snacks/weirdcheesewedge(T)
 
 /datum/chemical_reaction/weird_cheese
@@ -323,8 +312,7 @@
 	color = "#9C5013"
 
 /datum/reagent/bread/reaction_turf(turf/T, volume)
-	src = null
-	if(volume >= 5)
+	if(volume >= 5 && !istype(T, /turf/space))
 		new /obj/item/weapon/reagent_containers/food/snacks/breadslice(T)
 
 /datum/reagent/vomit
@@ -335,8 +323,7 @@
 	color = "#FFFF00"
 
 /datum/reagent/vomit/reaction_turf(turf/T, volume)
-	src = null
-	if(volume >= 5)
+	if(volume >= 5 && !istype(T, /turf/space))
 		new /obj/effect/decal/cleanable/vomit(T)
 		playsound(T, 'sound/effects/splat.ogg', 50, 1, -3)
 
@@ -348,8 +335,7 @@
 	color = "#78FF74"
 
 /datum/reagent/greenvomit/reaction_turf(turf/T, volume)
-	src = null
-	if(volume >= 5)
+	if(volume >= 5 && !istype(T, /turf/space))
 		new /obj/effect/decal/cleanable/vomit/green(T)
 		playsound(T, 'sound/effects/splat.ogg', 50, 1, -3)
 
@@ -362,9 +348,7 @@
 	color = "#8EAE7B"
 	process_flags = ORGANIC | SYNTHETIC		//Because apparently ghosts in the shell
 
-/datum/reagent/ectoplasm/reaction_mob(mob/M, method=TOUCH, volume)
-	if(!istype(M, /mob/living))
-		return
+/datum/reagent/ectoplasm/reaction_mob(mob/living/M, method=TOUCH, volume)
 	if(method == INGEST)
 		var/spooky_eat = pick("Ugh, why did you eat that? Your mouth feels haunted. Haunted with bad flavors.", "Ugh, why did you eat that? It has the texture of ham aspic.  From the 1950s.  Left out in the sun.", "Ugh, why did you eat that? It tastes like a ghost fart.", "Ugh, why did you eat that? It tastes like flavor died.")
 		to_chat(M, "<span class='warning'>[spooky_eat]</span>")
@@ -376,8 +360,7 @@
 	..()
 
 /datum/reagent/ectoplasm/reaction_turf(turf/T, volume)
-	src = null
-	if(volume >= 10)
+	if(volume >= 10 && !istype(T, /turf/space))
 		new /obj/item/weapon/reagent_containers/food/snacks/ectoplasm(T)
 
 /datum/reagent/soybeanoil
@@ -448,8 +431,7 @@
 	..()
 
 /datum/reagent/meatslurry/reaction_turf(turf/T, volume)
-	src = null
-	if(volume >= 5 && prob(10))
+	if(volume >= 5 && prob(10) && !istype(T, /turf/space))
 		new /obj/effect/decal/cleanable/blood/gibs/cleangibs(T)
 		playsound(T, 'sound/effects/splat.ogg', 50, 1, -3)
 

code/modules/reagents/newchem/medicine.dm

@@ -89,8 +89,7 @@
 	..()
 
 /datum/reagent/synthflesh/reaction_turf(turf/T, volume) //let's make a mess!
-	src = null
-	if(volume >= 5)
+	if(volume >= 5 && !istype(T, /turf/space))
 		new /obj/effect/decal/cleanable/blood/gibs/cleangibs(T)
 		playsound(T, 'sound/effects/splat.ogg', 50, 1, -3)
 
@@ -620,7 +619,7 @@
 				SM.loot.Cut() //no abusing strange reagent for unlimited farming of resources
 				SM.visible_message("<span class='warning'>[M] seems to rise from the dead!</span>")
 
-	if(istype(M, /mob/living/carbon))
+	if(iscarbon(M))
 		if(method == INGEST)
 			if(M.stat == DEAD)
 				if(M.getBruteLoss()+M.getFireLoss() >= 150)
@@ -952,11 +951,8 @@
 	result_amount = 2
 
 /datum/reagent/degreaser/reaction_turf(turf/simulated/T, volume)
-	if(!istype(T))
-		return
-	src = null
-	if(volume >= 1)
-		if(istype(T) && T.wet)
+	if(volume >= 1 && istype(T))
+		if(T.wet)
 			T.MakeDry(TURF_WET_LUBE)
 
 /datum/reagent/degreaser/on_mob_life(mob/living/M)

code/modules/reagents/newchem/newchem_procs.dm

@@ -8,17 +8,13 @@
 	var/overdosed = 0 // You fucked up and this is now triggering it's overdose effects, purge that shit quick.
 	var/current_cycle = 1
 
-/datum/reagents
-	var/chem_temp = 300
-	var/list/datum/reagent/addiction_list = new/list()
-
 /datum/reagents/proc/metabolize(mob/living/M)
 	if(M)
 		chem_temp = M.bodytemperature
 		handle_reactions()
 	for(var/A in reagent_list)
 		var/datum/reagent/R = A
-		if(!istype(R))
+		if(!istype(R)) // How are non-reagents ending up in the reagents_list?
 			continue
 		if(!R.holder)
 			continue

code/modules/reagents/newchem/other.dm

@@ -124,7 +124,7 @@ var/list/random_color_list = list("#00aedb","#a200ff","#f47835","#d41243","#d111
 	mix_message = "The substance flashes multiple colors and emits the smell of a pocket protector."
 
 /datum/reagent/colorful_reagent/reaction_mob(mob/living/simple_animal/M, method=TOUCH, volume)
-    if(M && istype(M))
+    if(isanimal(M))
         M.color = pick(random_color_list)
     ..()
 
@@ -187,7 +187,7 @@ var/list/random_color_list = list("#00aedb","#a200ff","#f47835","#d41243","#d111
 	result_amount = 2
 
 /datum/reagent/hair_dye/reaction_mob(mob/living/M, volume)
-	if(M && ishuman(M))
+	if(ishuman(M))
 		var/mob/living/carbon/human/H = M
 		var/obj/item/organ/external/head/head_organ = H.get_organ("head")
 		head_organ.r_facial = rand(0,255)
@@ -217,7 +217,7 @@ var/list/random_color_list = list("#00aedb","#a200ff","#f47835","#d41243","#d111
 	mix_message = "The liquid becomes slightly hairy."
 
 /datum/reagent/hairgrownium/reaction_mob(mob/living/M, volume)
-	if(M && ishuman(M))
+	if(ishuman(M))
 		var/mob/living/carbon/human/H = M
 		var/obj/item/organ/external/head/head_organ = H.get_organ("head")
 		head_organ.h_style = random_hair_style(H.gender, head_organ.species.name)
@@ -244,7 +244,7 @@ var/list/random_color_list = list("#00aedb","#a200ff","#f47835","#d41243","#d111
 	mix_message = "The liquid becomes amazingly furry and smells peculiar."
 
 /datum/reagent/super_hairgrownium/reaction_mob(mob/living/M, volume)
-	if(M && ishuman(M))
+	if(ishuman(M))
 		var/mob/living/carbon/human/H = M
 		var/obj/item/organ/external/head/head_organ = H.get_organ("head")
 		var/datum/sprite_accessory/tmp_hair_style = hair_styles_list["Very Long Hair"]

code/modules/reagents/newchem/pyro.dm

@@ -65,7 +65,7 @@
 		new /obj/effect/hotspot(T)
 
 /datum/reagent/clf3/reaction_mob(mob/living/M, method=TOUCH, volume)
-	if(method == TOUCH && isliving(M))
+	if(method == TOUCH)
 		M.adjust_fire_stacks(5)
 		M.IgniteMob()
 		M.bodytemperature += 30
@@ -177,9 +177,8 @@
 	mix_sound = null
 
 /datum/reagent/blackpowder/reaction_turf(turf/T, volume) //oh shit
-	src = null
-	if(volume >= 5)
-		if(!locate(/obj/effect/decal/cleanable/dirt/blackpowder) in get_turf(T)) //let's not have hundreds of decals of black powder on the same turf
+	if(volume >= 5 && !istype(T, /turf/space))
+		if(!locate(/obj/effect/decal/cleanable/dirt/blackpowder) in T) //let's not have hundreds of decals of black powder on the same turf
 			new /obj/effect/decal/cleanable/dirt/blackpowder(T)
 
 /datum/chemical_reaction/blackpowder_explosion/on_reaction(datum/reagents/holder, created_volume)
@@ -436,7 +435,7 @@
 	..()
 
 /datum/reagent/napalm/reaction_mob(mob/living/M, method=TOUCH, volume)
-	if(method == TOUCH && isliving(M))
+	if(method == TOUCH)
 		M.adjust_fire_stacks(7)
 
 /datum/chemical_reaction/napalm
@@ -474,7 +473,7 @@
 		holder.handle_reactions()
 	..()
 
-/datum/reagent/cryostylane/reaction_turf(turf/simulated/T, volume)
+/datum/reagent/cryostylane/reaction_turf(turf/T, volume)
 	if(volume >= 5)
 		for(var/mob/living/carbon/slime/M in T)
 			M.adjustToxLoss(rand(15,30))
@@ -537,9 +536,6 @@
 	mix_sound = 'sound/goonstation/misc/drinkfizz.ogg'
 
 /datum/reagent/firefighting_foam/reaction_mob(mob/living/M, method=TOUCH, volume)
-	if(!istype(M, /mob/living))
-		return
-
 // Put out fire
 	if(method == TOUCH)
 		M.adjust_fire_stacks(-(volume / 5)) // more effective than water
@@ -550,24 +546,23 @@
 	if(!istype(T))
 		return
 	var/CT = cooling_temperature
-	src = null
-	if(!istype(T, /turf/space))
-		new /obj/effect/decal/cleanable/flour/foam(T) //foam mess; clears up quickly.
+	new /obj/effect/decal/cleanable/flour/foam(T) //foam mess; clears up quickly.
 	var/hotspot = (locate(/obj/effect/hotspot) in T)
-	if(hotspot && !istype(T, /turf/space))
-		var/datum/gas_mixture/lowertemp = T.remove_air( T:air:total_moles() )
-		lowertemp.temperature = max( min(lowertemp.temperature-(CT*1000),lowertemp.temperature / CT) ,0)
+	if(hotspot)
+		var/datum/gas_mixture/lowertemp = T.remove_air(T.air.total_moles())
+		lowertemp.temperature = max(min(lowertemp.temperature-(CT*1000), lowertemp.temperature / CT), 0)
 		lowertemp.react()
 		T.assume_air(lowertemp)
 		qdel(hotspot)
 
 /datum/reagent/firefighting_foam/reaction_obj(obj/O, volume)
-	src = null
-	var/turf/T = get_turf(O)
+	var/turf/simulated/T = get_turf(O)
+	if(!istype(T))
+		return
 	var/hotspot = (locate(/obj/effect/hotspot) in T)
-	if(hotspot && !istype(T, /turf/space))
-		var/datum/gas_mixture/lowertemp = T.remove_air( T:air:total_moles() )
-		lowertemp.temperature = max( min(lowertemp.temperature-2000,lowertemp.temperature / 2) ,0)
+	if(hotspot)
+		var/datum/gas_mixture/lowertemp = T.remove_air(T.air.total_moles())
+		lowertemp.temperature = max(min(lowertemp.temperature-2000,lowertemp.temperature / 2), 0)
 		lowertemp.react()
 		T.assume_air(lowertemp)
 		qdel(hotspot)
@@ -625,8 +620,6 @@
 		T.atmos_spawn_air(SPAWN_TOXINS|SPAWN_20C, volume)
 
 /datum/reagent/plasma_dust/reaction_mob(mob/living/M, method=TOUCH, volume)//Splashing people with plasma dust is stronger than fuel!
-	if(!istype(M, /mob/living))
-		return
 	if(method == TOUCH)
 		M.adjust_fire_stacks(volume / 5)
 		return

code/modules/reagents/newchem/toxins.dm

@@ -289,8 +289,6 @@
 	process_flags = ORGANIC | SYNTHETIC
 
 /datum/reagent/facid/reaction_mob(mob/living/M, method=TOUCH, volume)
-	if(!istype(M, /mob/living))
-		return //wooo more runtime fixin
 	if(method == TOUCH || method == INGEST)
 		if(ishuman(M))
 			var/mob/living/carbon/human/H = M
@@ -311,18 +309,18 @@
 						if(!H.wear_mask.unacidable)
 							qdel(H.wear_mask)
 							H.update_inv_wear_mask()
-							to_chat(H, "\red Your mask melts away but protects you from the acid!")
+							to_chat(H, "<span class='warning'>Your mask melts away but protects you from the acid!</span>")
 						else
-							to_chat(H, "\red Your mask protects you from the acid!")
+							to_chat(H, "<span class='warning'>Your mask protects you from the acid!</span>")
 						return
 
 					if(H.head)
 						if(!H.head.unacidable)
 							qdel(H.head)
 							H.update_inv_head()
-							to_chat(H, "\red Your helmet melts away but protects you from the acid")
+							to_chat(H, "<span class='warning'>Your helmet melts away but protects you from the acid</span>")
 						else
-							to_chat(H, "\red Your helmet protects you from the acid!")
+							to_chat(H, "<span class='warning'>Your helmet protects you from the acid!</span>")
 						return
 
 				if(!H.unacidable)
@@ -333,12 +331,11 @@
 					H.status_flags |= DISFIGURED
 
 /datum/reagent/facid/reaction_obj(obj/O, volume)
-	if((istype(O,/obj/item) || istype(O,/obj/effect/glowshroom)))
+	if((istype(O, /obj/item) || istype(O, /obj/effect/glowshroom)))
 		if(!O.unacidable)
 			var/obj/effect/decal/cleanable/molten_item/I = new/obj/effect/decal/cleanable/molten_item(O.loc)
 			I.desc = "Looks like this was \an [O] some time ago."
-			for(var/mob/M in viewers(5, O))
-				to_chat(M, "\red \the [O] melts.")
+			O.visible_message("<span class='warning'>\the [O] melts.</span>")
 			qdel(O)
 
 /datum/chemical_reaction/facid
@@ -694,45 +691,41 @@
 	..()
 
 			// Clear off wallrot fungi
-/datum/reagent/atrazine/reaction_turf(turf/T, volume)
-	if(istype(T, /turf/simulated/wall))
-		var/turf/simulated/wall/W = T
-		if(W.rotting)
-			W.rotting = 0
-			for(var/obj/effect/E in W)
-				if(E.name == "Wallrot")
-					qdel(E)
+/datum/reagent/atrazine/reaction_turf(turf/simulated/wall/W, volume)
+	if(istype(W) && W.rotting)
+		W.rotting = 0
+		for(var/obj/effect/overlay/O in W)
+			if(O.name == "Wallrot") // This is so awful
+				qdel(O)
 
-			for(var/mob/O in viewers(W, null))
-				O.show_message(text("\blue The fungi are completely dissolved by the solution!"), 1)
+		W.visible_message("<span class='warning'>The fungi are completely dissolved by the solution!</span>")
 
 /datum/reagent/atrazine/reaction_obj(obj/O, volume)
 	if(istype(O,/obj/structure/alien/weeds/))
 		var/obj/structure/alien/weeds/alien_weeds = O
 		alien_weeds.health -= rand(15,35) // Kills alien weeds pretty fast
 		alien_weeds.healthcheck()
-	else if(istype(O,/obj/effect/glowshroom)) //even a small amount is enough to kill it
+	else if(istype(O, /obj/effect/glowshroom)) //even a small amount is enough to kill it
 		qdel(O)
 	else if(istype(O,/obj/effect/plant))
-		if(prob(50)) qdel(O) //Kills kudzu too.
+		if(prob(50))
+			qdel(O) //Kills kudzu too.
 	// Damage that is done to growing plants is separately at code/game/machinery/hydroponics at obj/item/hydroponics
 
 /datum/reagent/atrazine/reaction_mob(mob/living/M, method=TOUCH, volume)
-	src = null
 	if(iscarbon(M))
 		var/mob/living/carbon/C = M
 		if(!C.wear_mask) // If not wearing a mask
-			C.adjustToxLoss(2) // 4 toxic damage per application, doubled for some reason
+			C.adjustToxLoss(2) // 2 toxic damage per application
 		if(ishuman(M))
 			var/mob/living/carbon/human/H = M
-			if(H.dna)
-				if(H.species.flags & IS_PLANT) //plantmen take a LOT of damage
-					H.adjustToxLoss(50)
-					..()
-		else if(istype(M,/mob/living/simple_animal/diona)) //plantmen monkeys (diona) take EVEN MORE damage
-			var/mob/living/simple_animal/diona/D = M
-			D.adjustHealth(100)
-			..()
+			if(H.species.flags & IS_PLANT) //plantmen take a LOT of damage
+				H.adjustToxLoss(50)
+				..()
+	else if(istype(M, /mob/living/simple_animal/diona)) //plantmen monkeys (diona) take EVEN MORE damage
+		var/mob/living/simple_animal/diona/D = M
+		D.adjustHealth(100)
+		..()
 
 /datum/chemical_reaction/atrazine
 	name = "atrazine"
@@ -817,10 +810,11 @@
 	reagent_state = LIQUID
 	color = "#00FD00"
 
-/datum/reagent/glowing_slurry/reaction_mob(mob/M, method=TOUCH, volume) //same as mutagen
-	if(!..())	return
-	if(!M.dna) return //No robots, AIs, aliens, Ians or other mobs should be affected by this.
-	src = null
+/datum/reagent/glowing_slurry/reaction_mob(mob/living/M, method=TOUCH, volume) //same as mutagen
+	if(!..())
+		return
+	if(!M.dna)
+		return //No robots, AIs, aliens, Ians or other mobs should be affected by this.
 	if((method==TOUCH && prob(50)) || method==INGEST)
 		randmutb(M)
 		domutcheck(M, null)
@@ -828,6 +822,8 @@
 
 /datum/reagent/glowing_slurry/on_mob_life(mob/living/M)
 	M.apply_effect(2, IRRADIATE, 0, negate_armor = 1)
+	if(!M.dna)
+		return
 	if(prob(15))
 		randmutb(M)
 	if(prob(3))

code/modules/reagents/oldchem/reagents/_reagent_base.dm

@@ -21,57 +21,42 @@
 	var/process_flags = ORGANIC
 	var/admin_only = 0
 
-/datum/reagent/proc/reaction_mob(mob/M, method=TOUCH, volume) //Some reagents transfer on touch, others don't; dependent on if they penetrate the skin or not.
-	if(!istype(M, /mob/living))
-		return 0
-	var/datum/reagent/self = src
-	src = null
-
-	if(self.holder)		//for catching rare runtimes
-		if(method == TOUCH && self.penetrates_skin)
-			if(isliving(M))
-				var/mob/living/L = M
-				var/block  = L.get_permeability_protection()
-				var/amount = round(self.volume * (1.0 - block), 0.1)
-				if(L.reagents)
-					if(amount >= 1)
-						L.reagents.add_reagent(self.id,amount)
-
+/datum/reagent/proc/reaction_mob(mob/living/M, method=TOUCH, volume) //Some reagents transfer on touch, others don't; dependent on if they penetrate the skin or not.
+	if(holder)  //for catching rare runtimes
+		if(method == TOUCH && penetrates_skin)
+			var/block  = M.get_permeability_protection()
+			var/amount = round(volume * (1.0 - block), 0.1)
+			if(M.reagents)
+				if(amount >= 1)
+					M.reagents.add_reagent(id, amount)
 
 		if(method == INGEST) //Yes, even Xenos can get addicted to drugs.
-			var/can_become_addicted = M.reagents.reaction_check(M, self)
+			var/can_become_addicted = M.reagents.reaction_check(M, src)
 
 			if(can_become_addicted)
-				if(prob(self.addiction_chance) && !is_type_in_list(self, M.reagents.addiction_list))
+				if(prob(addiction_chance) && !is_type_in_list(src, M.reagents.addiction_list))
 					to_chat(M, "<span class='danger'>You suddenly feel invigorated and guilty...</span>")
-					var/datum/reagent/new_reagent = new self.type()
+					var/datum/reagent/new_reagent = new type()
 					new_reagent.last_addiction_dose = world.timeofday
 					M.reagents.addiction_list.Add(new_reagent)
-				else if(is_type_in_list(self, M.reagents.addiction_list))
+				else if(is_type_in_list(src, M.reagents.addiction_list))
 					to_chat(M, "<span class='notice'>You feel slightly better, but for how long?</span>")
 					for(var/A in M.reagents.addiction_list)
 						var/datum/reagent/AD = A
-						if(AD && istype(AD, self))
+						if(AD && istype(AD, src))
 							AD.last_addiction_dose = world.timeofday
 							AD.addiction_stage = 1
 		return 1
 
-/datum/reagent/proc/reaction_obj(obj/O, volume) //By default we transfer a small part of the reagent to the object
-	src = null						//if it can hold reagents. nope!
-	//if(O.reagents)
-	//	O.reagents.add_reagent(id,volume/3)
+/datum/reagent/proc/reaction_obj(obj/O, volume)
 	return
 
 /datum/reagent/proc/reaction_turf(turf/T, volume)
-	src = null
 	return
 
 /datum/reagent/proc/on_mob_life(mob/living/M)
-	if(!istype(M))
-		return
-	if(holder)
-		holder.remove_reagent(id, metabolization_rate) //By default it slowly disappears.
-		current_cycle++
+	current_cycle++
+	holder.remove_reagent(id, metabolization_rate) //By default it slowly disappears.
 
 /datum/reagent/proc/on_mob_death(mob/living/M)	//use this to have chems have a "death-triggered" effect
 	return

code/modules/reagents/oldchem/reagents/drink/reagents_alcohol.dm

@@ -29,14 +29,10 @@
 			to_chat(usr, "The solution melts away the ink on the book.")
 		else
 			to_chat(usr, "It wasn't enough...")
-	return
 
 /datum/reagent/ethanol/reaction_mob(mob/living/M, method=TOUCH, volume)//Splashing people with ethanol isn't quite as good as fuel.
-	if(!istype(M, /mob/living))
-		return
 	if(method == TOUCH)
 		M.adjust_fire_stacks(volume / 15)
-		return
 
 
 /datum/reagent/ethanol/beer

code/modules/reagents/oldchem/reagents/drink/reagents_drink.dm

@@ -102,7 +102,7 @@
 
 /datum/reagent/drink/banana/on_mob_life(mob/living/M)
 	M.nutrition += nutriment_factor
-	if((istype(M, /mob/living/carbon/human) && M.job in list("Clown") ) || issmall(M))
+	if((ishuman(M) && M.job in list("Clown") ) || issmall(M))
 		M.adjustBruteLoss(-1)
 		M.adjustFireLoss(-1)
 	..()
@@ -114,7 +114,7 @@
 
 /datum/reagent/drink/nothing/on_mob_life(mob/living/M)
 	M.nutrition += nutriment_factor
-	if(istype(M, /mob/living/carbon/human) && M.job in list("Mime"))
+	if(ishuman(M) && M.job in list("Mime"))
 		M.adjustBruteLoss(-1)
 		M.adjustFireLoss(-1)
 	..()
@@ -265,7 +265,7 @@
 
 /datum/reagent/drink/bananahonk/on_mob_life(mob/living/M)
 	M.nutrition += nutriment_factor
-	if((istype(M, /mob/living/carbon/human) && M.job in list("Clown") ) || issmall(M))
+	if((ishuman(M) && M.job in list("Clown") ) || issmall(M))
 		M.adjustBruteLoss(-1)
 		M.adjustFireLoss(-1)
 	..()
@@ -279,7 +279,7 @@
 
 /datum/reagent/drink/silencer/on_mob_life(mob/living/M)
 	M.nutrition += nutriment_factor
-	if(istype(M, /mob/living/carbon/human) && M.job in list("Mime"))
+	if(ishuman(M) && M.job in list("Mime"))
 		M.adjustBruteLoss(-1)
 		M.adjustFireLoss(-1)
 	..()

code/modules/reagents/oldchem/reagents/reagents_flammable.dm

@@ -6,8 +6,6 @@
 	color = "#060606"
 
 /datum/reagent/fuel/reaction_mob(mob/living/M, method=TOUCH, volume)//Splashing people with welding fuel to make them easy to ignite!
-	if(!istype(M, /mob/living))
-		return
 	if(method == TOUCH)
 		M.adjust_fire_stacks(volume / 10)
 		return
@@ -56,8 +54,6 @@
 	..()
 
 /datum/reagent/plasma/reaction_mob(mob/living/M, method=TOUCH, volume)//Splashing people with plasma is stronger than fuel!
-	if(!istype(M, /mob/living))
-		return
 	if(method == TOUCH)
 		M.adjust_fire_stacks(volume / 5)
 		..()
@@ -71,13 +67,11 @@
 	color = "#673910" // rgb: 103, 57, 16
 	process_flags = ORGANIC | SYNTHETIC
 
-/datum/reagent/thermite/reaction_turf(turf/T, volume)
-	src = null
-	if(volume >= 5)
-		if(istype(T, /turf/simulated/wall))
-			T:thermite = 1
-			T.overlays.Cut()
-			T.overlays = image('icons/effects/effects.dmi',icon_state = "thermite")
+/datum/reagent/thermite/reaction_turf(turf/simulated/wall/W, volume)
+	if(volume >= 5 && istype(W))
+		W.thermite = 1
+		T.overlays.Cut()
+		T.overlays = image('icons/effects/effects.dmi',icon_state = "thermite")
 
 /datum/reagent/glycerol
 	name = "Glycerol"

code/modules/reagents/oldchem/reagents/reagents_food.dm

@@ -92,19 +92,19 @@
 			M.bodytemperature += 5 * TEMPERATURE_DAMAGE_COEFFICIENT
 			if(holder.has_reagent("frostoil"))
 				holder.remove_reagent("frostoil", 5)
-			if(istype(M, /mob/living/carbon/slime))
+			if(isslime(M))
 				M.bodytemperature += rand(5,20)
 		if(15 to 25)
 			M.bodytemperature += 10 * TEMPERATURE_DAMAGE_COEFFICIENT
-			if(istype(M, /mob/living/carbon/slime))
+			if(isslime(M))
 				M.bodytemperature += rand(10,20)
 		if(25 to 35)
 			M.bodytemperature += 15 * TEMPERATURE_DAMAGE_COEFFICIENT
-			if(istype(M, /mob/living/carbon/slime))
+			if(isslime(M))
 				M.bodytemperature += rand(15,20)
 		if(35 to INFINITY)
 			M.bodytemperature += 20 * TEMPERATURE_DAMAGE_COEFFICIENT
-			if(istype(M, /mob/living/carbon/slime))
+			if(isslime(M))
 				M.bodytemperature += rand(20,25)
 	..()
 
@@ -122,27 +122,27 @@
 			M.bodytemperature -= 10 * TEMPERATURE_DAMAGE_COEFFICIENT
 			if(holder.has_reagent("capsaicin"))
 				holder.remove_reagent("capsaicin", 5)
-			if(istype(M, /mob/living/carbon/slime))
+			if(isslime(M))
 				M.bodytemperature -= rand(5,20)
 		if(15 to 25)
 			M.bodytemperature -= 15 * TEMPERATURE_DAMAGE_COEFFICIENT
-			if(istype(M, /mob/living/carbon/slime))
+			if(isslime(M))
 				M.bodytemperature -= rand(10,20)
 		if(25 to 35)
 			M.bodytemperature -= 20 * TEMPERATURE_DAMAGE_COEFFICIENT
 			if(prob(1))
 				M.emote("shiver")
-			if(istype(M, /mob/living/carbon/slime))
+			if(isslime(M))
 				M.bodytemperature -= rand(15,20)
 		if(35 to INFINITY)
 			M.bodytemperature -= 20 * TEMPERATURE_DAMAGE_COEFFICIENT
 			if(prob(1))
 				M.emote("shiver")
-			if(istype(M, /mob/living/carbon/slime))
+			if(isslime(M))
 				M.bodytemperature -= rand(20,25)
 	..()
 
-/datum/reagent/frostoil/reaction_turf(turf/simulated/T, volume)
+/datum/reagent/frostoil/reaction_turf(turf/T, volume)
 	if(volume >= 5)
 		for(var/mob/living/carbon/slime/M in T)
 			M.adjustToxLoss(rand(15,30))
@@ -202,7 +202,7 @@
 
 /datum/reagent/sprinkles/on_mob_life(mob/living/M)
 	M.nutrition += nutriment_factor
-	if(istype(M, /mob/living/carbon/human) && M.job in list("Security Officer", "Security Pod Pilot", "Detective", "Warden", "Head of Security", "Brig Physician", "Internal Affairs Agent", "Magistrate"))
+	if(ishuman(M) && M.job in list("Security Officer", "Security Pod Pilot", "Detective", "Warden", "Head of Security", "Brig Physician", "Internal Affairs Agent", "Magistrate"))
 		M.adjustBruteLoss(-1)
 		M.adjustFireLoss(-1)
 	..()
@@ -221,14 +221,14 @@
 	..()
 
 /datum/reagent/cornoil/reaction_turf(turf/simulated/T, volume)
-	if(!istype(T)) return
-	src = null
+	if(!istype(T))
+		return
 	if(volume >= 3)
 		T.MakeSlippery()
 	var/hotspot = (locate(/obj/effect/hotspot) in T)
 	if(hotspot)
-		var/datum/gas_mixture/lowertemp = T.remove_air( T:air:total_moles() )
-		lowertemp.temperature = max( min(lowertemp.temperature-2000,lowertemp.temperature / 2) ,0)
+		var/datum/gas_mixture/lowertemp = T.remove_air( T.air.total_moles())
+		lowertemp.temperature = max(min(lowertemp.temperature-2000, lowertemp.temperature / 2), 0)
 		lowertemp.react()
 		T.assume_air(lowertemp)
 		qdel(hotspot)
@@ -297,7 +297,6 @@
 	..()
 
 /datum/reagent/flour/reaction_turf(turf/T, volume)
-	src = null
 	if(!istype(T, /turf/space))
 		new /obj/effect/decal/cleanable/flour(T)
 

code/modules/reagents/oldchem/reagents/reagents_misc.dm

@@ -5,9 +5,8 @@
 	reagent_state = LIQUID
 	color = "#C7FFFF" // rgb: 199, 255, 255
 
-/datum/reagent/silicate/reaction_obj(var/obj/O, var/volume)
-	src = null
-	if(istype(O,/obj/structure/window))
+/datum/reagent/silicate/reaction_obj(obj/O, volume)
+	if(istype(O, /obj/structure/window))
 		if(O:silicate <= 200)
 
 			O:silicate += volume
@@ -30,9 +29,7 @@
 				var/b = (volume / 50) + 1
 				I.SetIntensity(r,g,b)
 				O.icon = I
-				O:silicateIcon = I
-
-	return*/
+				O:silicateIcon = I */
 
 
 /datum/reagent/oxygen
@@ -99,12 +96,9 @@
 	color = "#1C1300" // rgb: 30, 20, 0
 
 /datum/reagent/carbon/reaction_turf(turf/T, volume)
-	src = null
-	// Only add one dirt per turf.  Was causing people to crash.
-	if(!istype(T, /turf/space) && !(locate(/obj/effect/decal/cleanable/dirt) in T))
+	if(!istype(T) && !(locate(/obj/effect/decal/cleanable/dirt) in T)) // Only add one dirt per turf.  Was causing people to crash.
 		new /obj/effect/decal/cleanable/dirt(T)
 
-
 /datum/reagent/gold
 	name = "Gold"
 	id = "gold"

code/modules/reagents/oldchem/reagents/reagents_toxin.dm

@@ -84,7 +84,7 @@
 	reagent_state = LIQUID
 	color = "#13BC5E" // rgb: 19, 188, 94
 
-/datum/reagent/aslimetoxin/reaction_mob(mob/M, method=TOUCH, volume)
+/datum/reagent/aslimetoxin/reaction_mob(mob/living/M, method=TOUCH, volume)
 	if(method != TOUCH)
 		M.ForceContractDisease(new /datum/disease/transformation/slime(0))
 
@@ -145,12 +145,8 @@
 	..()
 
 /datum/reagent/radium/reaction_turf(turf/T, volume)
-	src = null
-	if(volume >= 3)
-		if(!istype(T, /turf/space))
-			new /obj/effect/decal/cleanable/greenglow(T)
-			return
-
+	if(volume >= 3 && !istype(T, /turf/space))
+		new /obj/effect/decal/cleanable/greenglow(T)
 
 /datum/reagent/mutagen
 	name = "Unstable mutagen"
@@ -160,17 +156,19 @@
 	color = "#04DF27"
 	metabolization_rate = 0.3
 
-/datum/reagent/mutagen/reaction_mob(mob/M, method=TOUCH, volume)
-	if(!..())	return
-	if(!M.dna) return //No robots, AIs, aliens, Ians or other mobs should be affected by this.
-	src = null
+/datum/reagent/mutagen/reaction_mob(mob/living/M, method=TOUCH, volume)
+	if(!..())
+		return
+	if(!M.dna)
+		return //No robots, AIs, aliens, Ians or other mobs should be affected by this.
 	if((method==TOUCH && prob(33)) || method==INGEST)
 		randmutb(M)
 		domutcheck(M, null)
 		M.UpdateAppearance()
 
 /datum/reagent/mutagen/on_mob_life(mob/living/M)
-	if(!M.dna) return //No robots, AIs, aliens, Ians or other mobs should be affected by this.
+	if(!M.dna)
+		return //No robots, AIs, aliens, Ians or other mobs should be affected by this.
 	M.apply_effect(2*REM, IRRADIATE, negate_armor = 1)
 	if(prob(4))
 		randmutb(M)
@@ -189,10 +187,8 @@
 	..()
 
 /datum/reagent/uranium/reaction_turf(turf/T, volume)
-	src = null
-	if(volume >= 3)
-		if(!istype(T, /turf/space))
-			new /obj/effect/decal/cleanable/greenglow(T)
+	if(volume >= 3 && !istype(T, /turf/space))
+		new /obj/effect/decal/cleanable/greenglow(T)
 
 
 /datum/reagent/lexorin
@@ -221,8 +217,6 @@
 	..()
 
 /datum/reagent/sacid/reaction_mob(mob/living/M, method=TOUCH, volume)
-	if(!istype(M, /mob/living))
-		return
 	if(method == TOUCH)
 		if(ishuman(M))
 			var/mob/living/carbon/human/H = M
@@ -278,8 +272,7 @@
 		if(!O.unacidable)
 			var/obj/effect/decal/cleanable/molten_item/I = new/obj/effect/decal/cleanable/molten_item(O.loc)
 			I.desc = "Looks like this was \an [O] some time ago."
-			for(var/mob/M in viewers(5, O))
-				to_chat(M, "\red \the [O] melts.")
+			O.visible_message("<span class='warning'>\the [O] melts.</span>")
 			qdel(O)
 
 
@@ -361,10 +354,8 @@
 	color = "#B31008" // rgb: 179, 16, 8
 
 /datum/reagent/condensedcapsaicin/reaction_mob(mob/living/M, method=TOUCH, volume)
-	if(!istype(M, /mob/living))
-		return
 	if(method == TOUCH)
-		if(istype(M, /mob/living/carbon/human))
+		if(ishuman(M))
 			var/mob/living/carbon/human/victim = M
 			var/mouth_covered = 0
 			var/eyes_covered = 0

code/modules/reagents/oldchem/reagents/reagents_water.dm

@@ -17,9 +17,6 @@
 	process_flags = ORGANIC | SYNTHETIC
 
 /datum/reagent/water/reaction_mob(mob/living/M, method=TOUCH, volume)
-	if(!istype(M, /mob/living))
-		return
-
 // Put out fire
 	if(method == TOUCH)
 		M.adjust_fire_stacks(-(volume / 10))
@@ -30,7 +27,6 @@
 /datum/reagent/water/reaction_turf(turf/simulated/T, volume)
 	if(!istype(T))
 		return
-	src = null
 	if(volume >= 3)
 		T.MakeSlippery()
 
@@ -38,32 +34,31 @@
 		M.apply_water()
 
 	var/hotspot = (locate(/obj/effect/hotspot) in T)
-	if(hotspot && !istype(T, /turf/space))
-		var/datum/gas_mixture/lowertemp = T.remove_air( T:air:total_moles() )
-		lowertemp.temperature = max( min(lowertemp.temperature-2000,lowertemp.temperature / 2) ,0)
+	if(hotspot)
+		var/datum/gas_mixture/lowertemp = T.remove_air( T.air.total_moles())
+		lowertemp.temperature = max(min(lowertemp.temperature-2000,lowertemp.temperature / 2), 0)
 		lowertemp.react()
 		T.assume_air(lowertemp)
 		qdel(hotspot)
 
 /datum/reagent/water/reaction_obj(obj/O, volume)
-	src = null
-	var/turf/T = get_turf(O)
-	var/hotspot = (locate(/obj/effect/hotspot) in T)
-	if(hotspot && !istype(T, /turf/space))
-		var/datum/gas_mixture/lowertemp = T.remove_air( T:air:total_moles() )
-		lowertemp.temperature = max( min(lowertemp.temperature-2000,lowertemp.temperature / 2) ,0)
-		lowertemp.react()
-		T.assume_air(lowertemp)
-		qdel(hotspot)
-	if(istype(O,/obj/item/weapon/reagent_containers/food/snacks/monkeycube))
+	var/turf/simulated/T = get_turf(O)
+	if(istype(T))
+		var/hotspot = (locate(/obj/effect/hotspot) in T)
+		if(hotspot)
+			var/datum/gas_mixture/lowertemp = T.remove_air( T.air.total_moles() )
+			lowertemp.temperature = max(min(lowertemp.temperature-2000,lowertemp.temperature / 2), 0)
+			lowertemp.react()
+			T.assume_air(lowertemp)
+			qdel(hotspot)
+	if(istype(O, /obj/item/weapon/reagent_containers/food/snacks/monkeycube))
 		var/obj/item/weapon/reagent_containers/food/snacks/monkeycube/cube = O
 		if(!cube.wrapped)
 			cube.Expand()
 	// Dehydrated carp
-	if(istype(O,/obj/item/toy/carpplushie/dehy_carp))
+	if(istype(O, /obj/item/toy/carpplushie/dehy_carp))
 		var/obj/item/toy/carpplushie/dehy_carp/dehy = O
 		dehy.Swell() // Makes a carp
-	return
 
 
 /datum/reagent/lube
@@ -74,9 +69,7 @@
 	color = "#1BB1AB"
 
 /datum/reagent/lube/reaction_turf(turf/simulated/T, volume)
-	if(!istype(T)) return
-	src = null
-	if(volume >= 1)
+	if(volume >= 1 && istype(T))
 		T.MakeSlippery(TURF_WET_LUBE)
 
 
@@ -90,11 +83,10 @@
 /datum/reagent/space_cleaner/reaction_obj(obj/O, volume)
 	if(O && !istype(O, /atom/movable/lighting_overlay))
 		O.color = initial(O.color)
-	if(istype(O,/obj/effect/decal/cleanable))
+	if(istype(O, /obj/effect/decal/cleanable))
 		qdel(O)
-	else
-		if(O)
-			O.clean_blood()
+	else if(O)
+		O.clean_blood()
 
 /datum/reagent/space_cleaner/reaction_turf(turf/T, volume)
 	if(volume >= 1)
@@ -106,14 +98,14 @@
 
 		for(var/mob/living/carbon/slime/M in T)
 			M.adjustToxLoss(rand(5,10))
-		if(istype(T,/turf/simulated))
+		if(istype(T, /turf/simulated))
 			var/turf/simulated/S = T
 			S.dirt = 0
 
-/datum/reagent/space_cleaner/reaction_mob(mob/M, method=TOUCH, volume)
+/datum/reagent/space_cleaner/reaction_mob(mob/living/M, method=TOUCH, volume)
 	if(iscarbon(M))
 		var/mob/living/carbon/C = M
-		if(istype(M,/mob/living/carbon/human))
+		if(ishuman(M))
 			var/mob/living/carbon/human/H = M
 			if(H.lip_style)
 				H.lip_style = null
@@ -141,7 +133,6 @@
 					H.update_inv_shoes(0,0)
 		M.clean_blood()
 		..()
-		return
 
 
 /datum/reagent/blood
@@ -151,7 +142,7 @@
 	reagent_state = LIQUID
 	color = "#C80000" // rgb: 200, 0, 0
 
-/datum/reagent/blood/reaction_mob(mob/M, method=TOUCH, volume)
+/datum/reagent/blood/reaction_mob(mob/living/M, method=TOUCH, volume)
 	if(data && data["viruses"])
 		for(var/datum/disease/D in data["viruses"])
 
@@ -232,7 +223,7 @@
 	id = "vaccine"
 	color = "#C81040" // rgb: 200, 16, 64
 
-/datum/reagent/vaccine/reaction_mob(mob/M, method=TOUCH, volume)
+/datum/reagent/vaccine/reaction_mob(mob/living/M, method=TOUCH, volume)
 	if(islist(data) && (method == INGEST))
 		for(var/datum/disease/D in M.viruses)
 			if(D.GetDiseaseID() in data)
@@ -241,7 +232,7 @@
 
 /datum/reagent/vaccine/on_merge(list/data)
 	if(istype(data))
-		src.data |= data.Copy()
+		data |= data.Copy()
 
 /datum/reagent/fishwater
 	name = "Fish Water"
@@ -250,9 +241,7 @@
 	reagent_state = LIQUID
 	color = "#757547"
 
-/datum/reagent/fishwater/reaction_mob(mob/M, method=TOUCH, volume)
-	if(!istype(M, /mob/living))
-		return
+/datum/reagent/fishwater/reaction_mob(mob/living/M, method=TOUCH, volume)
 	if(method == INGEST)
 		to_chat(M, "Oh god, why did you drink that?")
 
@@ -271,7 +260,7 @@
 	reagent_state = LIQUID
 	color = "#757547"
 
-/datum/reagent/fishwater/toiletwater/reaction_mob(mob/M, method=TOUCH, volume) //For shennanigans
+/datum/reagent/fishwater/toiletwater/reaction_mob(mob/living/M, method=TOUCH, volume) //For shennanigans
 	return
 
 /datum/reagent/holywater
@@ -293,14 +282,14 @@
 		M.confused += 3
 		if(isvampirethrall(M))
 			ticker.mode.remove_vampire_mind(M.mind)
-			holder.remove_reagent(src.id, src.volume)
+			holder.remove_reagent(id, volume)
 			M.jitteriness = 0
 			M.stuttering = 0
 			M.confused = 0
 			return
 		if(iscultist(M))
 			ticker.mode.remove_cultist(M.mind)
-			holder.remove_reagent(src.id, src.volume)	// maybe this is a little too perfect and a max() cap on the statuses would be better??
+			holder.remove_reagent(id, volume)	// maybe this is a little too perfect and a max() cap on the statuses would be better??
 			M.jitteriness = 0
 			M.stuttering = 0
 			M.confused = 0
@@ -331,10 +320,10 @@
 		var/mob/living/carbon/human/H=M
 		if(method == TOUCH)
 			if(H.wear_mask)
-				to_chat(H, "\red Your mask protects you from the holy water!")
+				to_chat(H, "<span class='warning'>Your mask protects you from the holy water!</span>")
 				return
 			else if(H.head)
-				to_chat(H, "\red Your helmet protects you from the holy water!")
+				to_chat(H, "<span class='warning'>Your helmet protects you from the holy water!</span>")
 				return
 			else
 				to_chat(M, "<span class='warning'>Something holy interferes with your powers!</span>")
@@ -342,8 +331,8 @@
 
 
 /datum/reagent/holywater/reaction_turf(turf/simulated/T, volume)
-	..()
-	if(!istype(T)) return
+	if(!istype(T))
+		return
 	if(volume>=10)
 		for(var/obj/effect/rune/R in T)
 			qdel(R)
@@ -358,13 +347,9 @@
 	reagent_state = LIQUID
 
 /datum/reagent/liquidgibs/reaction_turf(turf/T, volume) //yes i took it from synthflesh...
-	src = null
-	if(volume >= 5)
+	if(volume >= 5 && !istype(T, /turf/space))
 		new /obj/effect/decal/cleanable/blood/gibs/cleangibs(T)
 		playsound(T, 'sound/effects/splat.ogg', 50, 1, -3)
-		return
-
-
 
 /datum/reagent/lye
 	name = "Lye"

code/modules/reagents/pandemic.dm

@@ -51,9 +51,9 @@
 	wait = 1
 	update_icon()
 	spawn(waittime)
-		src.wait = null
+		wait = null
 		update_icon()
-		playsound(src.loc, 'sound/machines/ping.ogg', 30, 1)
+		playsound(loc, 'sound/machines/ping.ogg', 30, 1)
 
 /obj/machinery/computer/pandemic/update_icon()
 	if(stat & BROKEN)
@@ -75,8 +75,8 @@
 	if(!beaker) return
 
 	if(href_list["create_vaccine"])
-		if(!src.wait)
-			var/obj/item/weapon/reagent_containers/glass/bottle/B = new/obj/item/weapon/reagent_containers/glass/bottle(src.loc)
+		if(!wait)
+			var/obj/item/weapon/reagent_containers/glass/bottle/B = new/obj/item/weapon/reagent_containers/glass/bottle(loc)
 			if(B)
 				B.pixel_x = rand(-3, 3)
 				B.pixel_y = rand(-3, 3)
@@ -101,8 +101,8 @@
 					B.reagents.add_reagent("vaccine", 15, list(vaccine_type))
 					replicator_cooldown(200)
 		else
-			src.temp_html = "The replicator is not ready yet."
-		src.updateUsrDialog()
+			temp_html = "The replicator is not ready yet."
+		updateUsrDialog()
 		return
 	else if(href_list["create_virus_culture"])
 		if(!wait)
@@ -121,7 +121,7 @@
 			var/name = stripped_input(usr,"Name:","Name the culture",D.name,MAX_NAME_LEN)
 			if(name == null || wait)
 				return
-			var/obj/item/weapon/reagent_containers/glass/bottle/B = new/obj/item/weapon/reagent_containers/glass/bottle(src.loc)
+			var/obj/item/weapon/reagent_containers/glass/bottle/B = new/obj/item/weapon/reagent_containers/glass/bottle(loc)
 			B.icon_state = "bottle3"
 			B.pixel_x = rand(-3, 3)
 			B.pixel_y = rand(-3, 3)
@@ -130,24 +130,24 @@
 			B.name = "[name] culture bottle"
 			B.desc = "A small bottle. Contains [D.agent] culture in synthblood medium."
 			B.reagents.add_reagent("blood",20,data)
-			src.updateUsrDialog()
+			updateUsrDialog()
 		else
-			src.temp_html = "The replicator is not ready yet."
-		src.updateUsrDialog()
+			temp_html = "The replicator is not ready yet."
+		updateUsrDialog()
 		return
 	else if(href_list["empty_beaker"])
 		beaker.reagents.clear_reagents()
-		src.updateUsrDialog()
+		updateUsrDialog()
 		return
 	else if(href_list["eject"])
-		beaker:loc = src.loc
+		beaker:loc = loc
 		beaker = null
 		icon_state = "mixer0"
-		src.updateUsrDialog()
+		updateUsrDialog()
 		return
 	else if(href_list["clear"])
-		src.temp_html = ""
-		src.updateUsrDialog()
+		temp_html = ""
+		updateUsrDialog()
 		return
 	else if(href_list["name_disease"])
 		var/new_name = stripped_input(usr, "Name the Disease", "New Name", "", MAX_NAME_LEN)
@@ -161,15 +161,15 @@
 			A.AssignName(new_name)
 			for(var/datum/disease/advance/AD in disease_master.processing)
 				AD.Refresh()
-		src.updateUsrDialog()
+		updateUsrDialog()
 
 
 	else
 		usr << browse(null, "window=pandemic")
-		src.updateUsrDialog()
+		updateUsrDialog()
 		return
 
-	src.add_fingerprint(usr)
+	add_fingerprint(usr)
 	return
 
 /obj/machinery/computer/pandemic/attack_hand(mob/user)
@@ -177,8 +177,8 @@
 		return
 	user.set_machine(src)
 	var/dat = ""
-	if(src.temp_html)
-		dat = "[src.temp_html]<BR><BR><A href='?src=\ref[src];clear=1'>Main Menu</A>"
+	if(temp_html)
+		dat = "[temp_html]<BR><BR><A href='?src=\ref[src];clear=1'>Main Menu</A>"
 	else if(!beaker)
 		dat += "Please insert beaker.<BR>"
 		dat += "<A href='?src=\ref[user];mach_close=pandemic'>Close</A>"
@@ -284,11 +284,11 @@
 		beaker =  I
 		beaker.loc = src
 		to_chat(user, "<span class='notice'>You add the beaker to the machine.</span>")
-		src.updateUsrDialog()
+		updateUsrDialog()
 		icon_state = "mixer1"
 
 	else if(istype(I, /obj/item/weapon/screwdriver))
-		if(src.beaker)
+		if(beaker)
 			beaker.loc = get_turf(src)
 		..()
 		return

code/modules/reagents/reagent_containers.dm

@@ -28,7 +28,7 @@
 /obj/item/weapon/reagent_containers/New()
 	..()
 	if(!possible_transfer_amounts)
-		src.verbs -= /obj/item/weapon/reagent_containers/verb/set_APTFT
+		verbs -= /obj/item/weapon/reagent_containers/verb/set_APTFT
 	var/datum/reagents/R = new/datum/reagents(volume)
 	reagents = R
 	R.my_atom = src

code/modules/reagents/reagent_containers/borghydro.dm

@@ -49,8 +49,8 @@
 	if(charge_tick < recharge_time) return 0
 	charge_tick = 0
 
-	if(isrobot(src.loc))
-		var/mob/living/silicon/robot/R = src.loc
+	if(isrobot(loc))
+		var/mob/living/silicon/robot/R = loc
 		if(R && R.cell)
 			var/datum/reagents/RG = reagent_list[mode]
 			if(RG.total_volume < RG.maximum_volume) 	//Don't recharge reagents and drain power if the storage is full.
@@ -84,10 +84,10 @@
 		if(M.reagents)
 			var/datum/reagent/injected = chemical_reagents_list[reagent_ids[mode]]
 			var/contained = injected.name
-			M.attack_log += text("\[[time_stamp()]\] <font color='orange'>Has been injected with [src.name] by [key_name(user)]. Reagents: [contained]</font>")
-			user.attack_log += text("\[[time_stamp()]\] <font color='red'>Used the [src.name] to inject [key_name(M)]. Reagents: [contained]</font>")
+			M.attack_log += text("\[[time_stamp()]\] <font color='orange'>Has been injected with [name] by [key_name(user)]. Reagents: [contained]</font>")
+			user.attack_log += text("\[[time_stamp()]\] <font color='red'>Used the [name] to inject [key_name(M)]. Reagents: [contained]</font>")
 			if(M.ckey)
-				msg_admin_attack("[key_name_admin(user)] injected [key_name_admin(M)] with [src.name]. Reagents: [contained] (INTENT: [uppertext(user.a_intent)])")
+				msg_admin_attack("[key_name_admin(user)] injected [key_name_admin(M)] with [name]. Reagents: [contained] (INTENT: [uppertext(user.a_intent)])")
 			M.LAssailant = user
 
 			var/trans = R.trans_to(M, amount_per_transfer_from_this)
@@ -95,7 +95,7 @@
 	return
 
 /obj/item/weapon/reagent_containers/borghypo/attack_self(mob/user)
-	playsound(src.loc, 'sound/effects/pop.ogg', 50, 0)		//Change the mode
+	playsound(loc, 'sound/effects/pop.ogg', 50, 0)		//Change the mode
 	mode++
 	if(mode > reagent_list.len)
 		mode = 1

code/modules/reagents/reagent_containers/dropper.dm

@@ -45,17 +45,17 @@
 				if(safe_thing)
 					if(!safe_thing.reagents)
 						safe_thing.create_reagents(100)
-					trans = src.reagents.trans_to(safe_thing, amount_per_transfer_from_this)
+					trans = reagents.trans_to(safe_thing, amount_per_transfer_from_this)
 
 					for(var/mob/O in viewers(world.view, user))
 						O.show_message(text("\red <B>[] tries to squirt something into []'s eyes, but fails!</B>", user, target), 1)
 					spawn(5)
-						src.reagents.reaction(safe_thing, TOUCH)
+						reagents.reaction(safe_thing, TOUCH)
 
 
 
 					to_chat(user, "\blue You transfer [trans] units of the solution.")
-					if(src.reagents.total_volume<=0)
+					if(reagents.total_volume<=0)
 						filled = 0
 						icon_state = "[initial(icon_state)]"
 					return
@@ -63,26 +63,26 @@
 
 			for(var/mob/O in viewers(world.view, user))
 				O.show_message(text("\red <B>[] squirts something into []'s eyes!</B>", user, target), 1)
-			src.reagents.reaction(target, TOUCH)
+			reagents.reaction(target, TOUCH)
 
 			var/mob/living/M = target
 
 			var/list/injected = list()
-			for(var/datum/reagent/R in src.reagents.reagent_list)
+			for(var/datum/reagent/R in reagents.reagent_list)
 				injected += R.name
 			var/contained = english_list(injected)
-			M.attack_log += text("\[[time_stamp()]\] <font color='orange'>Has been squirted with [src.name] by [key_name(user)]. Reagents: [contained]</font>")
-			user.attack_log += text("\[[time_stamp()]\] <font color='red'>Used the [src.name] to squirt [key_name(M)]. Reagents: [contained]</font>")
+			M.attack_log += text("\[[time_stamp()]\] <font color='orange'>Has been squirted with [name] by [key_name(user)]. Reagents: [contained]</font>")
+			user.attack_log += text("\[[time_stamp()]\] <font color='red'>Used the [name] to squirt [key_name(M)]. Reagents: [contained]</font>")
 			if(M.ckey)
-				msg_admin_attack("[key_name_admin(user)] squirted [key_name_admin(M)] with [src.name]. Reagents: [contained] (INTENT: [uppertext(user.a_intent)])")
+				msg_admin_attack("[key_name_admin(user)] squirted [key_name_admin(M)] with [name]. Reagents: [contained] (INTENT: [uppertext(user.a_intent)])")
 			if(!iscarbon(user))
 				M.LAssailant = null
 			else
 				M.LAssailant = user
 
-		trans = src.reagents.trans_to(target, amount_per_transfer_from_this)
+		trans = reagents.trans_to(target, amount_per_transfer_from_this)
 		to_chat(user, "\blue You transfer [trans] units of the solution.")
-		if(src.reagents.total_volume<=0)
+		if(reagents.total_volume<=0)
 			filled = 0
 			icon_state = "[initial(icon_state)]"
 

code/modules/reagents/reagent_containers/food/cans.dm

@@ -9,7 +9,7 @@
 
 /obj/item/weapon/reagent_containers/food/drinks/cans/attack_self(mob/user)
 	if(canopened == 0)
-		playsound(src.loc,'sound/effects/canopen.ogg', rand(10,50), 1)
+		playsound(loc,'sound/effects/canopen.ogg', rand(10,50), 1)
 		to_chat(user, "<span class='notice'>You open the drink with an audible pop!</span>")
 		canopened = 1
 		flags |= OPENCONTAINER
@@ -32,7 +32,7 @@
 	if(canopened == 0)
 		to_chat(user, "<span class='notice'>You need to open the drink!</span>")
 		return
-	else if(M == user && !src.reagents.total_volume && user.a_intent == "harm" && user.zone_sel.selecting == "head")
+	else if(M == user && !reagents.total_volume && user.a_intent == "harm" && user.zone_sel.selecting == "head")
 		user.visible_message("<span class='warning'>[user] crushes ["\the [src]"] on \his forehead!</span>", "<span class='notice'>You crush \the [src] on your forehead.</span>")
 		crush(user)
 		return

code/modules/reagents/reagent_containers/food/condiment.dm

@@ -82,7 +82,7 @@
 		if(target.reagents.total_volume >= target.reagents.maximum_volume)
 			to_chat(user, "<span class='warning'>you can't add anymore to [target]!</span>")
 			return
-		var/trans = src.reagents.trans_to(target, amount_per_transfer_from_this)
+		var/trans = reagents.trans_to(target, amount_per_transfer_from_this)
 		to_chat(user, "<span class='notice'>You transfer [trans] units of the condiment to [target].</span>")
 
 /obj/item/weapon/reagent_containers/food/condiment/on_reagent_change()
@@ -223,7 +223,7 @@
 			return
 		else
 			to_chat(user, "<span class='notice'>You tear open [src] above [target] and the condiments drip onto it.</span>")
-			src.reagents.trans_to(target, amount_per_transfer_from_this)
+			reagents.trans_to(target, amount_per_transfer_from_this)
 			qdel(src)
 
 /obj/item/weapon/reagent_containers/food/condiment/pack/on_reagent_change()

code/modules/reagents/reagent_containers/food/drinks.dm

@@ -80,7 +80,7 @@
 			refill = reagents.get_master_reagent_id()
 			refillName = reagents.get_master_reagent_name()
 
-		var/trans = src.reagents.trans_to(target, amount_per_transfer_from_this)
+		var/trans = reagents.trans_to(target, amount_per_transfer_from_this)
 		to_chat(user, "<span class='notice'> You transfer [trans] units of the solution to [target].</span>")
 
 		if(isrobot(user)) //Cyborg modules that include drinks automatically refill themselves, but drain the borg's cell
@@ -101,22 +101,22 @@
 	if(istype(I, /obj/item/clothing/mask/cigarette)) //ciggies are weird
 		return
 	if(is_hot(I))
-		if(src.reagents)
-			src.reagents.chem_temp += 15
+		if(reagents)
+			reagents.chem_temp += 15
 			to_chat(user, "<span class='notice'>You heat [src] with [I].</span>")
-			src.reagents.handle_reactions()
+			reagents.handle_reactions()
 
 /obj/item/weapon/reagent_containers/food/drinks/examine(mob/user)
 	if(!..(user, 1))
 		return
 	if(!reagents || reagents.total_volume==0)
 		to_chat(user, "<span class='notice'> \The [src] is empty!</span>")
-	else if(reagents.total_volume<=src.volume/4)
+	else if(reagents.total_volume <= volume/4)
 		to_chat(user, "<span class='notice'> \The [src] is almost empty!</span>")
-	else if(reagents.total_volume<=src.volume*0.66)
+	else if(reagents.total_volume <= volume*0.66)
 		to_chat(user, "<span class='notice'> \The [src] is half full!</span>")// We're all optimistic, right?!
 
-	else if(reagents.total_volume<=src.volume*0.90)
+	else if(reagents.total_volume <= volume*0.90)
 		to_chat(user, "<span class='notice'> \The [src] is almost full!</span>")
 	else
 		to_chat(user, "<span class='notice'> \The [src] is full!</span>")

code/modules/reagents/reagent_containers/food/drinks/bottle.dm

@@ -22,9 +22,9 @@
 	else
 		user.drop_item()
 		user.put_in_active_hand(B)
-	B.icon_state = src.icon_state
+	B.icon_state = icon_state
 
-	var/icon/I = new('icons/obj/drinks.dmi', src.icon_state)
+	var/icon/I = new('icons/obj/drinks.dmi', icon_state)
 	I.Blend(B.broken_outline, ICON_OVERLAY, rand(5), 1)
 	I.SwapColor(rgb(255, 0, 220, 255), rgb(0, 0, 0, 0))
 	B.icon = I
@@ -99,11 +99,11 @@
 
 	//Display an attack message.
 	if(target != user)
-		target.visible_message("<span class='danger'>[user] has hit [target][head_attack_message] with a bottle of [src.name]!</span>", \
-				"<span class='userdanger'>[user] has hit [target][head_attack_message] with a bottle of [src.name]!</span>")
+		target.visible_message("<span class='danger'>[user] has hit [target][head_attack_message] with a bottle of [name]!</span>", \
+				"<span class='userdanger'>[user] has hit [target][head_attack_message] with a bottle of [name]!</span>")
 	else
-		user.visible_message("<span class='danger'>[target] hits \himself with a bottle of [src.name][head_attack_message]!</span>", \
-				"<span class='userdanger'>[target] hits \himself with a bottle of [src.name][head_attack_message]!</span>")
+		user.visible_message("<span class='danger'>[target] hits \himself with a bottle of [name][head_attack_message]!</span>", \
+				"<span class='userdanger'>[target] hits \himself with a bottle of [name][head_attack_message]!</span>")
 
 	//Attack logs
 	add_logs(target, user, "attacked", src)

code/modules/reagents/reagent_containers/spray.dm

@@ -44,7 +44,7 @@
 
 	spray(A)
 
-	playsound(src.loc, 'sound/effects/spray2.ogg', 50, 1, -6)
+	playsound(loc, 'sound/effects/spray2.ogg', 50, 1, -6)
 	user.changeNext_move(CLICK_CD_RANGE*2)
 	user.newtonian_move(get_dir(A, user))
 
@@ -82,8 +82,8 @@
 	to_chat(user, "<span class='notice'>You [amount_per_transfer_from_this == 10 ? "remove" : "fix"] the nozzle. You'll now use [amount_per_transfer_from_this] units per spray.</span>")
 
 /obj/item/weapon/reagent_containers/spray/examine(mob/user)
-	if(..(user, 0) && user==src.loc)
-		to_chat(user, "[round(src.reagents.total_volume)] units left.")
+	if(..(user, 0) && user == loc)
+		to_chat(user, "[round(reagents.total_volume)] units left.")
 
 /obj/item/weapon/reagent_containers/spray/verb/empty()
 
@@ -94,10 +94,10 @@
 		return
 	if(alert(usr, "Are you sure you want to empty that?", "Empty Bottle:", "Yes", "No") != "Yes")
 		return
-	if(isturf(usr.loc) && src.loc == usr)
+	if(isturf(usr.loc) && loc == usr)
 		to_chat(usr, "<span class='notice'>You empty \the [src] onto the floor.</span>")
 		reagents.reaction(usr.loc)
-		src.reagents.clear_reagents()
+		reagents.clear_reagents()
 
 //space cleaner
 /obj/item/weapon/reagent_containers/spray/cleaner
@@ -156,10 +156,10 @@
 /obj/item/weapon/reagent_containers/spray/chemsprayer/spray(var/atom/A)
 	var/Sprays[3]
 	for(var/i=1, i<=3, i++) // intialize sprays
-		if(src.reagents.total_volume < 1) break
+		if(reagents.total_volume < 1) break
 		var/obj/effect/decal/chempuff/D = new/obj/effect/decal/chempuff(get_turf(src))
 		D.create_reagents(amount_per_transfer_from_this)
-		src.reagents.trans_to(D, amount_per_transfer_from_this)
+		reagents.trans_to(D, amount_per_transfer_from_this)
 
 		D.icon += mix_color_from_reagents(D.reagents.reagent_list)
 

code/modules/reagents/reagent_containers/syringes.dm

@@ -82,7 +82,7 @@
 				if(istype(target, /mob/living/carbon/slime))
 					to_chat(user, "\red You are unable to locate any blood.")
 					return
-				if(src.reagents.has_reagent("blood"))
+				if(reagents.has_reagent("blood"))
 					to_chat(user, "\red There is already a blood sample in this syringe")
 					return
 				if(istype(target, /mob/living/carbon))//maybe just add a blood reagent to all mobs. Then you can suck them dry...With hundreds of syringes. Jolly good idea.
@@ -109,7 +109,7 @@
 					if(!do_mob(user, target, time))
 						return
 
-					var/amount = src.reagents.maximum_volume - src.reagents.total_volume
+					var/amount = reagents.maximum_volume - reagents.total_volume
 					if(amount == 0)
 						to_chat(usr, "<span class='warning'>The syringe is full!</span>")
 						return
@@ -125,10 +125,10 @@
 						B = T.take_blood(src,amount)
 
 					if(B)
-						src.reagents.reagent_list |= B
-						src.reagents.update_total()
-						src.on_reagent_change()
-						src.reagents.handle_reactions()
+						reagents.reagent_list |= B
+						reagents.update_total()
+						on_reagent_change()
+						reagents.handle_reactions()
 
 						to_chat(user, "\blue You take a blood sample from [target]")
 						for(var/mob/O in viewers(4, user))
@@ -193,25 +193,25 @@
 				if(istype(target,/mob/living))
 					var/mob/living/M = target
 					var/list/injected = list()
-					for(var/datum/reagent/R in src.reagents.reagent_list)
+					for(var/datum/reagent/R in reagents.reagent_list)
 						injected += R.name
 					var/contained = english_list(injected)
-					M.attack_log += text("\[[time_stamp()]\] <font color='orange'>Has been injected with [src.name] by [key_name(user)]. Reagents: [contained]</font>")
-					user.attack_log += text("\[[time_stamp()]\] <font color='red'>Used the [src.name] to inject [key_name(M)]. Reagents: [contained]</font>")
+					M.attack_log += text("\[[time_stamp()]\] <font color='orange'>Has been injected with [name] by [key_name(user)]. Reagents: [contained]</font>")
+					user.attack_log += text("\[[time_stamp()]\] <font color='red'>Used the [name] to inject [key_name(M)]. Reagents: [contained]</font>")
 					if(M.ckey)
-						msg_admin_attack("[key_name_admin(user)] injected [key_name_admin(M)] with [src.name]. Reagents: [contained] (INTENT: [uppertext(user.a_intent)])")
+						msg_admin_attack("[key_name_admin(user)] injected [key_name_admin(M)] with [name]. Reagents: [contained] (INTENT: [uppertext(user.a_intent)])")
 					if(!iscarbon(user))
 						M.LAssailant = null
 					else
 						M.LAssailant = user
 
-				src.reagents.reaction(target, INGEST)
+				reagents.reaction(target, INGEST)
 			if(ismob(target) && target == user)
-				src.reagents.reaction(target, INGEST)
+				reagents.reaction(target, INGEST)
 
 			spawn(5)
 				var/datum/reagent/blood/B
-				for(var/datum/reagent/blood/d in src.reagents.reagent_list)
+				for(var/datum/reagent/blood/d in reagents.reagent_list)
 					B = d
 					break
 				var/trans
@@ -219,8 +219,8 @@
 					var/mob/living/carbon/C = target
 					C.inject_blood(src, 5)
 				else
-					trans = src.reagents.trans_to(target, amount_per_transfer_from_this)
-					to_chat(user, "\blue You inject [trans] units of the solution. The syringe now contains [src.reagents.total_volume] units.")
+					trans = reagents.trans_to(target, amount_per_transfer_from_this)
+					to_chat(user, "\blue You inject [trans] units of the solution. The syringe now contains [reagents.total_volume] units.")
 					if(istype(target, /obj/item/weapon/reagent_containers/food/pill/patch))
 						var/obj/item/weapon/reagent_containers/food/pill/patch/P = target
 						if(P.instant_application)
@@ -342,12 +342,12 @@
 				if(!do_mob(user, target, 300)) return
 				for(var/mob/O in viewers(world.view, user))
 					O.show_message(text("\red [] injects [] with a giant syringe!", user, target), 1)
-				src.reagents.reaction(target, INGEST)
+				reagents.reaction(target, INGEST)
 			if(ismob(target) && target == user)
-				src.reagents.reaction(target, INGEST)
+				reagents.reaction(target, INGEST)
 			spawn(5)
-				var/trans = src.reagents.trans_to(target, amount_per_transfer_from_this)
-				to_chat(user, "\blue You inject [trans] units of the solution. The syringe now contains [src.reagents.total_volume] units.")
+				var/trans = reagents.trans_to(target, amount_per_transfer_from_this)
+				to_chat(user, "\blue You inject [trans] units of the solution. The syringe now contains [reagents.total_volume] units.")
 				if(reagents.total_volume >= reagents.maximum_volume && mode==SYRINGE_INJECT)
 					mode = SYRINGE_DRAW
 					update_icon()

code/modules/reagents/reagent_dispenser.dm

@@ -20,7 +20,7 @@
 	reagents = R
 	R.my_atom = src
 	if(!possible_transfer_amounts)
-		src.verbs -= /obj/structure/reagent_dispensers/verb/set_APTFT
+		verbs -= /obj/structure/reagent_dispensers/verb/set_APTFT
 	..()
 
 /obj/structure/reagent_dispensers/examine(mob/user)
@@ -50,12 +50,12 @@
 			return
 		if(2.0)
 			if(prob(50))
-				new /obj/effect/effect/water(src.loc)
+				new /obj/effect/effect/water(loc)
 				qdel(src)
 				return
 		if(3.0)
 			if(prob(5))
-				new /obj/effect/effect/water(src.loc)
+				new /obj/effect/effect/water(loc)
 				qdel(src)
 				return
 		else
@@ -63,7 +63,7 @@
 
 /obj/structure/reagent_dispensers/blob_act()
 	if(prob(50))
-		new /obj/effect/effect/water(src.loc)
+		new /obj/effect/effect/water(loc)
 		qdel(src)
 
 
@@ -106,7 +106,7 @@
 		boom()
 
 /obj/structure/reagent_dispensers/fueltank/proc/boom()
-	explosion(src.loc,0,1,5,7,10, flame_range = 5)
+	explosion(loc,0,1,5,7,10, flame_range = 5)
 	if(src)
 		qdel(src)
 
@@ -231,7 +231,7 @@
 	reagents.add_reagent("beer",1000)
 
 /obj/structure/reagent_dispensers/beerkeg/blob_act()
-	explosion(src.loc,0,3,5,7,10)
+	explosion(loc,0,3,5,7,10)
 	qdel(src)
 
 /obj/structure/reagent_dispensers/virusfood