adds the Improvised Cryptographic Sequencer

code/datums/components/crafting/makeshift.dm

@@ -88,6 +88,18 @@
 	category = CAT_TOOLS
 	always_available = FALSE
 
+/datum/crafting_recipe/makeshiftemag
+	name = "Improvised Emag"	
+	reqs = list(/obj/item/stock_parts/subspace/amplifier = 1,
+        			/obj/item/card/id = 1,
+				/obj/item/electronics/firelock = 1,
+				/obj/item/stack/cable_coil = 10)
+	tools = list(TOOL_MULTITOOL, TOOL_WIRECUTTER)
+	result = /obj/item/card/emag/improvised
+	time = 12 SECONDS
+	category = CAT_TOOLS
+	always_available = FALSE
+
 /datum/crafting_recipe/makeshiftid
 	name = "Makeshift ID"
 	result = /obj/item/card/id/makeshift

code/game/objects/items/cards_ids.dm

@@ -75,6 +75,52 @@
 	color = rgb(40, 130, 255)
 	prox_check = FALSE
 
+/obj/item/card/emag/improvised
+	name = "improvised cryptographic sequencer"
+	desc = "It's a card with some junk circuitry strapped to it. It doesn't look like it would be reliable or fast due to shoddy construction, and needs to be manually recharged with uranium sheets."
+	icon_state = "emag_shitty"
+	var/charges = 5 //how many times can we use the emag before needing to reload it?
+	var/max_charges = 5
+	var/emagging //are we currently emagging something
+
+/obj/item/card/emag/improvised/afterattack(atom/target, mob/user, proximity)	
+	if(charges > 0)
+		if(emagging)
+			return
+		if(!proximity && prox_check) //left in for badmins
+			return
+		emagging = TRUE
+		if(do_after(user, rand(5, 10) SECONDS, target))
+			charges--
+			if (prob(40))
+				to_chat(user, span_notice("[src] emits a puff of smoke, but nothing happens."))
+				emagging = FALSE
+				return
+			if (prob(5))
+				var/mob/living/M = user
+				M.adjust_fire_stacks(1)
+				M.IgniteMob()
+				to_chat(user, span_danger("The card shorts out and catches fire in your hands!"))
+			log_combat(user, target, "attempted to emag")
+			if (!istype(target, /obj/machinery/computer/cargo))
+				target.emag_act(user)
+			else
+				to_chat(user, span_notice("The cheap circuitry isn't strong enough to subvert this!"))
+		emagging = FALSE
+
+/obj/item/card/emag/improvised/attackby(obj/item/W, mob/user, params)
+	. = ..()
+	if (max_charges > charges)
+		if (istype(W, /obj/item/stack/sheet/mineral/uranium))
+			var/obj/item/stack/sheet/mineral/uranium/T = W
+			T.use(1)
+			charges++
+			to_chat(user, span_notice("You add another charge to the [src]. It now has [charges] use[charges == 1 ? "" : "s"] remaining."))
+
+/obj/item/card/emag/improvised/examine(mob/user)
+	. = ..()
+	. += span_notice("The charge meter indicates that it has [charges] charge[charges == 1 ? "" : "s"] remaining out of [max_charges] charges.")
+
 /obj/item/card/emag/attack()
 	return
 

code/game/objects/items/granters.dm

@@ -439,7 +439,7 @@
 /obj/item/book/granter/crafting_recipe/weapons
 	name = "makeshift weapons 101"
 	desc = "A book filled with directions on how to make various weaponry."
-	crafting_recipe_types = list(/datum/crafting_recipe/baseball_bat, /datum/crafting_recipe/lance, /datum/crafting_recipe/knifeboxing, /datum/crafting_recipe/flamethrower, /datum/crafting_recipe/pipebomb, /datum/crafting_recipe/makeshiftpistol, /datum/crafting_recipe/makeshiftmagazine, /datum/crafting_recipe/makeshiftsuppressor, /datum/crafting_recipe/makeshiftcrowbar, /datum/crafting_recipe/makeshiftwrench, /datum/crafting_recipe/makeshiftwirecutters, /datum/crafting_recipe/makeshiftweldingtool, /datum/crafting_recipe/makeshiftmultitool, /datum/crafting_recipe/makeshiftscrewdriver, /datum/crafting_recipe/makeshiftknife, /datum/crafting_recipe/makeshiftpickaxe, /datum/crafting_recipe/makeshiftradio, /datum/crafting_recipe/bola_arrow, /datum/crafting_recipe/flaming_arrow)
+	crafting_recipe_types = list(/datum/crafting_recipe/baseball_bat, /datum/crafting_recipe/lance, /datum/crafting_recipe/knifeboxing, /datum/crafting_recipe/flamethrower, /datum/crafting_recipe/pipebomb, /datum/crafting_recipe/makeshiftpistol, /datum/crafting_recipe/makeshiftmagazine, /datum/crafting_recipe/makeshiftsuppressor, /datum/crafting_recipe/makeshiftcrowbar, /datum/crafting_recipe/makeshiftwrench, /datum/crafting_recipe/makeshiftwirecutters, /datum/crafting_recipe/makeshiftweldingtool, /datum/crafting_recipe/makeshiftmultitool, /datum/crafting_recipe/makeshiftscrewdriver, /datum/crafting_recipe/makeshiftknife, /datum/crafting_recipe/makeshiftpickaxe, /datum/crafting_recipe/makeshiftradio, /datum/crafting_recipe/bola_arrow, /datum/crafting_recipe/flaming_arrow, /datum/crafting_recipe/makeshiftemag)
 	icon_state = "bookCrafting"
 	oneuse = TRUE
 

yogstation/code/game/objects/items/cards_ids.dm

@@ -72,6 +72,8 @@
 	var/otherEmag = user.get_active_held_item()
 	if(!otherEmag)
 		return
+	if(istype(otherEmag, /obj/item/card/emag/improvised))
+		return
 	if(prob(10))
 		to_chat(user, span_notice("By some ungodly miracle, the emag gains new functionality instead of being destroyed."))
 		playsound(src.loc, "sparks", 50, 1)