Merge pull request #13246 from silicons/anomaly_manufacturing

anomaly manufacturing port from tg. supermatter anomaly generation nerfed to 20% rather than removed

code/game/objects/effects/anomalies.dm

@@ -17,11 +17,15 @@
 	var/countdown_colour
 	var/obj/effect/countdown/anomaly/countdown
 
-/obj/effect/anomaly/Initialize(mapload, new_lifespan)
+	/// chance we drop a core when neutralized
+	var/core_drop_chance = 100
+
+/obj/effect/anomaly/Initialize(mapload, new_lifespan, core_drop_chance = 100)
 	. = ..()
 	GLOB.poi_list |= src
 	START_PROCESSING(SSobj, src)
 	impact_area = get_area(src)
+	src.core_drop_chance = core_drop_chance
 
 	if (!impact_area)
 		return INITIALIZE_HINT_QDEL
@@ -54,6 +58,8 @@
 	GLOB.poi_list.Remove(src)
 	STOP_PROCESSING(SSobj, src)
 	qdel(countdown)
+	if(aSignal)
+		QDEL_NULL(aSignal)
 	return ..()
 
 /obj/effect/anomaly/proc/anomalyEffect()
@@ -70,12 +76,12 @@
 /obj/effect/anomaly/proc/anomalyNeutralize()
 	new /obj/effect/particle_effect/smoke/bad(loc)
 
-	for(var/atom/movable/O in src)
-		O.forceMove(drop_location())
+	if(prob(core_drop_chance))
+		aSignal.forceMove(drop_location())
+		aSignal = null
 
 	qdel(src)
 
-
 /obj/effect/anomaly/attackby(obj/item/I, mob/user, params)
 	if(I.tool_behaviour == TOOL_ANALYZER) //revert if runtimed
 		to_chat(user, "<span class='notice'>Analyzing... [src]'s unstable field is fluctuating along frequency [format_frequency(aSignal.frequency)], code [aSignal.code].</span>")

code/game/objects/items/circuitboards/machine_circuitboards.dm

@@ -1146,3 +1146,8 @@
 	build_path = /obj/machinery/atmospherics/components/unary/shuttle/heater
 	req_components = list(/obj/item/stock_parts/micro_laser = 2,
 		/obj/item/stock_parts/matter_bin = 1)
+
+/obj/item/circuitboard/machine/explosive_compressor
+	name = "Explosive Compressor (Machine Board)"
+	build_path = /obj/machinery/research/explosive_compressor
+	req_components = list(/obj/item/stock_parts/matter_bin = 3)

code/game/objects/items/devices/transfer_valve.dm

@@ -289,3 +289,9 @@
 				. = TRUE
 
 	update_icon()
+
+/**
+  * Returns if this is ready to be detonated. Checks if both tanks are in place.
+  */
+/obj/item/transfer_valve/proc/ready()
+	return tank_one && tank_two