Merge pull request #10142 from datlo/ttvbomb

Adds the toxins payload casing to crafting

code/game/machinery/syndicatebomb.dm

@@ -530,6 +530,48 @@
 
 		qdel(G)
 
+/obj/item/bombcore/toxins
+	name = "toxins payload"
+	desc = "A payload casing designed to secure a gas based bomb. Must be loaded with a tank transfer valve and installed into a plasteel bomb frame in order to be detonated."
+	origin_tech = "materials=1;engineering=1"
+	icon_state = "chemcore"
+	var/obj/item/transfer_valve/ttv = null
+
+/obj/item/bombcore/toxins/attackby(obj/item/I, mob/user)
+	if(iscrowbar(I) && ttv)
+		playsound(loc, I.usesound, 50, 1)
+		ttv.forceMove(get_turf(src))
+		ttv = null
+	else if(istype(I, /obj/item/transfer_valve))
+		if(!ttv && !check_attached(I))
+			if(!user.drop_item())
+				return
+			to_chat(user, "<span class='notice'>You load [src] with [I].</span>")
+			ttv = I
+			I.forceMove(src)
+		else if (ttv)
+			to_chat(user, "<span class='warning'>Another tank transfer valve is already loaded.</span>")
+		else
+			to_chat(user, "<span class='warning'>Remove the attached assembly component first.</span>")
+	else
+		return ..()
+
+/obj/item/bombcore/toxins/proc/check_attached(obj/item/transfer_valve/ttv)
+	if (ttv.attached_device)
+		return TRUE
+	else
+		return FALSE
+
+/obj/item/bombcore/toxins/ex_act(severity) //No chain reactions, the explosion only occurs when gas mixes
+	return
+
+/obj/item/bombcore/toxins/burn()
+	return
+
+/obj/item/bombcore/toxins/detonate()
+	if(ttv)
+		ttv.toggle_valve()
+
 ///Syndicate Detonator (aka the big red button)///
 
 /obj/item/syndicatedetonator

code/modules/crafting/recipes.dm

@@ -339,6 +339,16 @@
 	time = 50
 	category = CAT_WEAPON
 
+/datum/crafting_recipe/toxins_payload
+	name = "Toxins Payload Casing"
+	result = /obj/item/bombcore/toxins
+	reqs = list(
+		/obj/item/stock_parts/matter_bin = 1,
+		/obj/item/assembly/signaler = 1,
+		/obj/item/stack/sheet/metal = 2
+	)
+	category = CAT_WEAPON
+
 /datum/crafting_recipe/bonfire
 	name = "Bonfire"
 	time = 60