nuke upgrade

code/game/machinery/nuclearbomb.dm

@@ -629,3 +629,25 @@ GLOBAL_VAR_INIT(bomb_set, FALSE)
 
 	decrypting = FALSE
 	announce_to_players()
+
+/obj/structure/machinery/nuclearbomb/tech/attackby(obj/item/nuke_disk as obj, mob/user as mob)
+	var/reduction_multiplier = 0.7 //30% reduction
+	if(istype(nuke_disk, /obj/item/disk/nuclear))
+		attack_hand(user)
+		if(decrypting)
+			if (decryption_time > 0)
+				decryption_end_time = LERP(world.time, decryption_end_time, reduction_multiplier)
+				decryption_time = decryption_end_time - world.time
+				to_chat(user, SPAN_WARNING("The decryption process begins using the disk's data..."))
+				announce_to_players() //Let everyone know the new time
+				qdel(nuke_disk)
+				return
+			else
+				to_chat(user, SPAN_WARNING("Decryption is already complete..."))
+				return
+		else
+			to_chat(user, SPAN_WARNING("It needs to be decrypting first!"))
+			return
+	else
+		to_chat(user, SPAN_WARNING("You probably shouldn't hit it with \the [src]..."))
+		return