moved process() to datum. made /datum/reagents/ process instead of the containers.

code/modules/reagents/Chemistry-Holder.dm

@@ -17,7 +17,7 @@ datum/reagents
 
 datum/reagents/New(maximum=100)
 	maximum_volume = maximum
-
+	SSobj.processing |= src
 	//I dislike having these here but map-objects are initialised before world/New() is called. >_>
 	if(!chemical_reagents_list)
 		//Chemical Reagents - Initialises all /datum/reagent into a list indexed by reagent id
@@ -53,6 +53,7 @@ datum/reagents/New(maximum=100)
 
 datum/reagents/Destroy()
 	..()
+	SSobj.processing.Remove(src)
 	for(var/datum/reagent/R in reagent_list)
 		qdel(R)
 	reagent_list.Cut()
@@ -260,7 +261,7 @@ datum/reagents/proc/metabolize(var/mob/M)
 	last_tick++
 	update_total()
 
-datum/reagents/proc/reagent_on_tick()
+datum/reagents/process()
 	for(var/datum/reagent/R in reagent_list)
 		R.on_tick()
 	return

code/modules/reagents/reagent_containers.dm

@@ -35,11 +35,6 @@
 		reagents.add_reagent("blood", disease_amount, data)
 	if(list_reagents)
 		reagents.add_reagent_list(list_reagents)
-	SSobj.processing |= src
-
-/obj/item/weapon/reagent_containers/Destroy()
-	SSobj.processing.Remove(src)
-	..()
 
 /obj/item/weapon/reagent_containers/attack_self(mob/user as mob)
 	return
@@ -83,12 +78,6 @@
 			return 0
 	return 1
 
-
-/obj/item/weapon/reagent_containers/process()
-	if(reagents)
-		reagents.reagent_on_tick()
-	return
-
 /obj/item/weapon/reagent_containers/ex_act()
 	if(reagents)
 		for(var/datum/reagent/R in reagents.reagent_list)