Loadout (vacuum-)flask contents now configurable.

Can now prefill the loadout flask and vacuum-flask with a relevant liquid of your choice.

code/modules/client/preference_setup/loadout/gear_tweaks.dm

@@ -111,3 +111,34 @@ var/datum/gear_tweak/color/gear_tweak_free_color_choice = new()
 		else
 			path = 	contents[metadata[i]]
 		new path(I)
+
+/*
+* Ragent adjustment
+*/
+
+/datum/gear_tweak/reagents
+	var/list/valid_reagents
+
+/datum/gear_tweak/reagents/New(var/list/reagents)
+	valid_reagents = reagents.Copy()
+	..()
+
+/datum/gear_tweak/reagents/get_contents(var/metadata)
+	return "Reagents: [metadata]"
+
+/datum/gear_tweak/reagents/get_default()
+	return "Random"
+
+/datum/gear_tweak/reagents/get_metadata(var/user, var/list/metadata)
+	. = input(user, "Choose an entry.", "Character Preference", metadata) as null|anything in (valid_reagents + list("Random", "None"))
+	if(!.)
+		return metadata
+
+/datum/gear_tweak/reagents/tweak_item(var/obj/item/I, var/list/metadata)
+	if(metadata == "None")
+		return
+	if(metadata == "Random")
+		. = valid_reagents[pick(valid_reagents)]
+	else
+		. = valid_reagents[metadata]
+	I.reagents.add_reagent(., I.reagents.get_free_space())

code/modules/client/preference_setup/loadout/loadout_general.dm

@@ -30,10 +30,18 @@
 	display_name = "flask"
 	path = /obj/item/weapon/reagent_containers/food/drinks/flask/barflask
 
+/datum/gear/flask/New()
+	..()
+	gear_tweaks += new/datum/gear_tweak/reagents(lunchables_ethanol_reagents())
+
 /datum/gear/vacflask
 	display_name = "vacuum-flask"
 	path = /obj/item/weapon/reagent_containers/food/drinks/flask/vacuumflask
 
+/datum/gear/vacflask/New()
+	..()
+	gear_tweaks += new/datum/gear_tweak/reagents(lunchables_drink_reagents())
+
 /datum/gear/comb
 	display_name = "purple comb"
 	path = /obj/item/weapon/haircomb