Another set of QoL and changes for IC (#6317)

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## About The Pull Request

This PR aims to solve a few things random things I have collected in my
to do list of issues and QoL.

First of, trignometry! You can now use the inverse function of sin, cos
and tan including atan2 because it is cool.
Mini fixes of the debug printer having no metal, a few reagent
containers having no ref pushes and resolving a few invisible icons. Not
to mention the external battery scanner being to near useless with no
adjecant check.
Lasty the two major things is that the injector now finally works, you
can draw blood, inject it properly and you can't inject someone else
with it if they are wearing armor. Second is the medical scanner is now
able to output nutrition, reagent types and quantity.

Late edit: Also added Min and Max math circuitry. Fixed and reenabled
filters plus a view filter that ties into it

code/modules/integrated_electronics/core/printer.dm

@@ -37,6 +37,7 @@
 /obj/item/integrated_circuit_printer/debug
 	name = "fractal integrated circuit printer"
 	desc = "A portable(ish) machine that makes modular circuitry seemingly out of thin air."
+	cur_metal = 250
 	debug = TRUE
 	upgraded = TRUE
 	can_clone = TRUE

code/modules/integrated_electronics/passive/power.dm

@@ -113,7 +113,7 @@
 	 a source of organic fuel; blood from sapient creatures is more efficient."
 	atom_flags = OPENCONTAINER
 	complexity = 4
-	inputs = list()
+	inputs = list("push ref" = IC_PINTYPE_PULSE_IN)
 	outputs = list("volume used" = IC_PINTYPE_NUMBER,"self reference" = IC_PINTYPE_REF)
 	activators = list()
 	spawn_flags = IC_SPAWN_DEFAULT|IC_SPAWN_RESEARCH
@@ -130,6 +130,10 @@
 	push_data()
 	..()
 
+/obj/item/integrated_circuit/passive/power/chemical_cell/do_work()
+	set_pin_data(IC_OUTPUT, 2, WEAKREF(src))
+	push_data()
+
 /obj/item/integrated_circuit/passive/power/chemical_cell/on_reagent_change()
 	set_pin_data(IC_OUTPUT, 1, reagents.total_volume)
 	push_data()

code/modules/integrated_electronics/subtypes/arithmetic.dm

@@ -308,3 +308,32 @@
 	push_data()
 	activate_pin(2)
 
+// -Max- //
+/obj/item/integrated_circuit/arithmetic/max
+	name = "max circuit"
+	desc = "This circuit sends out the highest number."
+	extended_desc = "The highest number is put out. Null is ignored."
+	icon_state = "addition"
+	spawn_flags = IC_SPAWN_DEFAULT|IC_SPAWN_RESEARCH
+	var/min_comparision = FALSE
+
+/obj/item/integrated_circuit/arithmetic/max/do_work()
+	var/result
+	for(var/k in 1 to length(inputs))
+		var/I = get_pin_data(IC_INPUT, k)
+		if(!isnum(I))
+			continue
+		if(!isnum(result) || (!min_comparision && I > result) || (min_comparision && I < result))
+			result = I
+	if(!isnum(result))
+		result = 0
+	set_pin_data(IC_OUTPUT, 1, result)
+	push_data()
+	activate_pin(2)
+
+// -Min- //
+/obj/item/integrated_circuit/arithmetic/max/min
+	name = "min circuit"
+	desc = "This circuit sends out the smallest number."
+	extended_desc = "The smallest number is put out. Null is ignored. In case no number is found, 0 is given out."
+	min_comparision = TRUE

code/modules/integrated_electronics/subtypes/filters.dm

@@ -3,8 +3,6 @@
 	power_draw_per_use = 5
 	complexity = 2
 	activators = list("compare" = IC_PINTYPE_PULSE_IN, "if valid" = IC_PINTYPE_PULSE_OUT, "if not valid" = IC_PINTYPE_PULSE_OUT)
-	spawn_flags = IC_SPAWN_DEFAULT|IC_SPAWN_RESEARCH
-	icon = 'icons/obj/electronic_assemblies.dmi'
 
 /obj/item/integrated_circuit/filter/proc/may_pass(var/input)
 	return FALSE
@@ -17,12 +15,12 @@
 	var/filter_type
 	complexity = 4
 	inputs = list( "input" = IC_PINTYPE_REF )
-	outputs = list("result" = IC_PINTYPE_BOOLEAN)
+	outputs = list("result" = IC_PINTYPE_BOOLEAN, "self ref" = IC_PINTYPE_SELFREF)
 
-/obj/item/integrated_circuit/filter/ref/may_pass(var/weakref/data)
+/obj/item/integrated_circuit/filter/ref/may_pass(var/datum/weakref/data)
 	if(!(filter_type && isweakref(data)))
 		return FALSE
-	var/weakref/wref = data
+	var/datum/weakref/wref = data
 	return istype(wref.resolve(), filter_type)
 
 /obj/item/integrated_circuit/filter/ref/do_work()
@@ -41,48 +39,69 @@
 	desc = "Only allow refs belonging to more complex, currently or formerly, living but not necessarily biological entities through."
 	icon_state = "filter_mob"
 	filter_type = /mob/living
+	spawn_flags = IC_SPAWN_DEFAULT|IC_SPAWN_RESEARCH
+
+/obj/item/integrated_circuit/filter/ref/mob/simple_mob
+	name = "creature filter"
+	desc = "Only allow refs belonging to more simple minded, currently or formerly, living but not necessarily biological entities through."
+	icon_state = "filter_mob"
+	filter_type = /mob/living/simple_mob
+	spawn_flags = IC_SPAWN_DEFAULT|IC_SPAWN_RESEARCH
+
+/obj/item/integrated_circuit/filter/ref/mob/simple_animal
+	name = "animal filter"
+	desc = "Only allow refs belonging to more animalistic, currently or formerly, living but not necessarily biological entities through."
+	icon_state = "filter_mob"
+	filter_type = /mob/living/simple_animal
+	spawn_flags = IC_SPAWN_DEFAULT|IC_SPAWN_RESEARCH
 
 /obj/item/integrated_circuit/filter/ref/mob/humanoid
 	name = "humanoid filter"
 	desc = "Only allow refs belonging to humanoids (dead or alive) through."
 	icon_state = "filter_humanoid"
 	filter_type = /mob/living/carbon/human
+	spawn_flags = IC_SPAWN_DEFAULT|IC_SPAWN_RESEARCH
 
 /obj/item/integrated_circuit/filter/ref/obj
 	name = "object filter"
 	desc = "Allows most kinds of refs to pass, as long as they are not considered (once) living entities."
 	icon_state = "filter_obj"
 	filter_type = /obj
+	spawn_flags = IC_SPAWN_DEFAULT|IC_SPAWN_RESEARCH
 
 /obj/item/integrated_circuit/filter/ref/obj/item
 	name = "item filter"
 	desc = "Only allow refs belonging to minor items through, typically hand-held such."
 	icon_state = "filter_item"
 	filter_type = /obj/item
+	spawn_flags = IC_SPAWN_DEFAULT|IC_SPAWN_RESEARCH
 
 /obj/item/integrated_circuit/filter/ref/obj/machinery
 	name = "machinery filter"
 	desc = "Only allow refs belonging machinery or complex objects through, such as computers and consoles."
 	icon_state = "filter_machinery"
 	filter_type = /obj/machinery
+	spawn_flags = IC_SPAWN_DEFAULT|IC_SPAWN_RESEARCH
 
 /obj/item/integrated_circuit/filter/ref/object/structure
 	name = "structure filter"
 	desc = "Only allow refs belonging larger objects and structures through, such as closets and beds."
 	icon_state = "filter_structure"
 	filter_type = /obj/structure
+	spawn_flags = IC_SPAWN_DEFAULT|IC_SPAWN_RESEARCH
 
 /obj/item/integrated_circuit/filter/ref/custom
 	name = "custom filter"
 	desc = "Allows custom filtering.  It will match type against a stored reference."
 	icon_state = "filter_custom"
 	inputs = list( "input" = IC_PINTYPE_REF, "expected type" = IC_PINTYPE_REF )
+	spawn_flags = IC_SPAWN_DEFAULT|IC_SPAWN_RESEARCH
 
-/obj/item/integrated_circuit/filter/ref/custom/may_pass(var/weakref/data, var/weakref/typedata)
+/obj/item/integrated_circuit/filter/ref/custom/may_pass(var/datum/weakref/data, var/datum/weakref/typedata)
 	if(!isweakref(data) || !isweakref(typedata))
 		return FALSE
-	var/weakref/wref = data
-	var/weakref/wref2 = typedata
+	var/datum/weakref/wref = data
+	var/datum/weakref/wref2 = typedata
 	var/atom/A = wref.resolve()
 	var/atom/B = wref2.resolve()
 	return (A && B && (istype(A, B.type)))
@@ -110,6 +129,7 @@
 		"expected string" = IC_PINTYPE_STRING
 		)
 	outputs = list("result" = IC_PINTYPE_BOOLEAN)
+	spawn_flags = IC_SPAWN_DEFAULT|IC_SPAWN_RESEARCH
 
 /obj/item/integrated_circuit/filter/string/may_pass(var/datum/integrated_io/A, var/datum/integrated_io/B)
 	return A.data == B.data

code/modules/integrated_electronics/subtypes/input.dm

@@ -224,7 +224,10 @@
 		"clone damage"			= IC_PINTYPE_NUMBER,
 		"blood loss"			= IC_PINTYPE_NUMBER,
 		"pain level"			= IC_PINTYPE_NUMBER,
-		"radiation"				= IC_PINTYPE_NUMBER
+		"radiation"				= IC_PINTYPE_NUMBER,
+		"nutrition"				= IC_PINTYPE_NUMBER,
+		"list of reagents"		= IC_PINTYPE_LIST,
+		"quantity of reagents"	= IC_PINTYPE_LIST
 	)
 	activators = list("scan" = IC_PINTYPE_PULSE_IN, "on scanned" = IC_PINTYPE_PULSE_OUT)
 	spawn_flags = IC_SPAWN_RESEARCH
@@ -254,10 +257,44 @@
 			set_pin_data(IC_OUTPUT, 10, round((H.vessel.get_reagent_amount("blood") / H.species.blood_volume)*100))
 			set_pin_data(IC_OUTPUT, 11, H.traumatic_shock)
 			set_pin_data(IC_OUTPUT, 12, H.radiation)
+			set_pin_data(IC_OUTPUT, 13, H.nutrition)
+			var/cont[0]
+			var/amt[0]
+			for(var/datum/reagent/RE in H.reagents.reagent_list)
+				if(RE.scannable)
+					cont += RE.id
+					amt	+= round(H.reagents.get_reagent_amount(RE.id), 1)
+			set_pin_data(IC_OUTPUT, 14, cont)
+			set_pin_data(IC_OUTPUT, 15, amt)
 
 		push_data()
 		activate_pin(2)
 
+/obj/item/integrated_circuit/input/view_filter
+	name = "view filter"
+	desc = "This circuit will filter every object in assembly view."
+	extended_desc = "The first pin is ref to filter, to see avaliable filters go to Filter category. The output will contents everything with filtering type"
+	inputs = list(
+		"filter" = IC_PINTYPE_REF
+	)
+	outputs = list(
+		"objects" = IC_PINTYPE_LIST
+	)
+	activators = list("scan" = IC_PINTYPE_PULSE_IN, "on scanned" = IC_PINTYPE_PULSE_OUT)
+	spawn_flags = IC_SPAWN_RESEARCH
+	power_draw_per_use = 30
+
+/obj/item/integrated_circuit/input/view_filter/do_work(ord)
+	var/list/objects = list()
+	var/obj/item/integrated_circuit/filter/ref/filter = get_pin_data(IC_INPUT, 1)
+	if(istype(filter) && assembly && (filter in assembly.assembly_components))
+		for(var/atom/A in view(get_turf(assembly)))
+			if(istype(A, filter.filter_type))
+				objects.Add(WEAKREF(A))
+		set_pin_data(IC_OUTPUT, 1, objects)
+		push_data()
+		activate_pin(2)
+
 /obj/item/integrated_circuit/input/slime_scanner
 	name = "slime scanner"
 	desc = "A very small version of the xenobio analyser.  This allows the machine to know every needed properties of slime.  Output mutation list is non-associative."
@@ -1242,7 +1279,8 @@ GLOBAL_DATUM_INIT(circuit_translation_context, /datum/translation_context/simple
 			if(cell)
 
 				var/turf/A = get_turf(src)
-				if(AM in view(A))
+				var/turf/B = get_turf(AM)
+				if(A.Adjacent(B) || (AM in view(A)))
 					push_data()
 					set_pin_data(IC_OUTPUT, 1, cell.charge)
 					set_pin_data(IC_OUTPUT, 2, cell.maxcharge)

code/modules/integrated_electronics/subtypes/reagents.dm

@@ -24,8 +24,15 @@
 	complexity = 20
 	cooldown_per_use = 30 SECONDS
 	inputs = list()
-	outputs = list("volume used" = IC_PINTYPE_NUMBER,"self reference" = IC_PINTYPE_SELFREF)
-	activators = list("create smoke" = IC_PINTYPE_PULSE_IN,"on smoked" = IC_PINTYPE_PULSE_OUT)
+	outputs = list(
+		"volume used" = IC_PINTYPE_NUMBER,
+		"self reference" = IC_PINTYPE_SELFREF,
+		)
+	activators = list(
+		"create smoke" = IC_PINTYPE_PULSE_IN,
+		"on smoked" = IC_PINTYPE_PULSE_OUT,
+		"push ref" = IC_PINTYPE_PULSE_IN
+		)
 	spawn_flags = IC_SPAWN_RESEARCH
 	origin_tech = list(TECH_ENGINEERING = 3, TECH_DATA = 3, TECH_BIO = 3)
 	volume = 100
@@ -40,15 +47,20 @@
 	push_data()
 	..()
 
-/obj/item/integrated_circuit/reagent/smoke/do_work()
-	playsound(src.loc, 'sound/effects/smoke.ogg', 50, 1, -3)
-	var/datum/effect_system/smoke_spread/chem/smoke_system = new()
-	smoke_system.set_up(reagents, 10, 0, get_turf(src))
-	spawn(0)
-		for(var/i = 1 to 8)
-			smoke_system.start()
-		reagents.clear_reagents()
-	activate_pin(2)
+/obj/item/integrated_circuit/reagent/smoke/do_work(ord)
+	switch(ord)
+		if(1)
+			playsound(src.loc, 'sound/effects/smoke.ogg', 50, 1, -3)
+			var/datum/effect_system/smoke_spread/chem/smoke_system = new()
+			smoke_system.set_up(reagents, 10, 0, get_turf(src))
+			spawn(0)
+				for(var/i = 1 to 8)
+					smoke_system.start()
+				reagents.clear_reagents()
+			activate_pin(2)
+		if(4)
+			set_pin_data(IC_OUTPUT, 2, WEAKREF(src))
+			push_data()
 
 /obj/item/integrated_circuit/reagent/injector
 	name = "integrated hypo-injector"
@@ -60,17 +72,22 @@
 	volume = 30
 	complexity = 20
 	cooldown_per_use = 6 SECONDS
-	inputs = list("target" = IC_PINTYPE_REF, "injection amount" = IC_PINTYPE_NUMBER)
-	inputs_default = list("2" = 5)
+	inputs = list(
+		"target" = IC_PINTYPE_REF,
+		"injection amount" = IC_PINTYPE_NUMBER
+		)
+	inputs_default = list(
+		"2" = 5
+		)
 	outputs = list(
 		"volume used" = IC_PINTYPE_NUMBER,
 		"self reference" = IC_PINTYPE_SELFREF
 		)
 	activators = list(
-		"push ref" = IC_PINTYPE_PULSE_IN,
 		"inject" = IC_PINTYPE_PULSE_IN,
 		"on injected" = IC_PINTYPE_PULSE_OUT,
-		"on fail" = IC_PINTYPE_PULSE_OUT
+		"on fail" = IC_PINTYPE_PULSE_OUT,
+		"push ref" = IC_PINTYPE_PULSE_IN
 		)
 	spawn_flags = IC_SPAWN_DEFAULT|IC_SPAWN_RESEARCH
 	power_draw_per_use = 15
@@ -127,8 +144,13 @@
 			activate_pin(3)
 			return
 		if(isliving(AM))
-			var/mob/living/L = AM
-			if(!L.can_inject(null, 0))
+			var/mob/living/carbon/human/L = AM
+			var/bypass
+			if(assembly == L.r_store || assembly == L.l_store)
+				bypass = TRUE //The injector has been put under the thick layer
+			if(!L.can_inject(null, 0, BP_TORSO, bypass))
+				L.visible_message("<span class='danger'>[acting_object] failed to pierce [L] thick clothing!</span>", \
+									"<span class='userdanger'>[acting_object] failed to pierce your thick clothing!</span>")
 				activate_pin(3)
 				return
 
@@ -138,8 +160,8 @@
 			L.visible_message("<span class='danger'>[acting_object] is trying to inject [L]!</span>", \
 								"<span class='userdanger'>[acting_object] is trying to inject you!</span>")
 			busy = TRUE
-			if(do_atom(src, L, extra_checks=CALLBACK(L, TYPE_PROC_REF(/mob/living, can_inject),null,0)))
-				reagents.trans_to(L, transfer_amount)
+			if(do_atom(src, L, extra_checks=CALLBACK(L, TYPE_PROC_REF(/mob/living, can_inject),null,0,BP_TORSO,bypass)))
+				reagents.trans_to_mob(L, transfer_amount)
 				log_attack(src, L, "attempted to inject [L] which had [contained]")
 				L.visible_message("<span class='danger'>[acting_object] injects [L] with its needle!</span>", \
 									"<span class='userdanger'>[acting_object] injects you with its needle!</span>")
@@ -159,13 +181,28 @@
 		var/tramount = abs(transfer_amount)
 
 		if(isliving(AM))
-			var/mob/living/L = AM
+			var/mob/living/carbon/human/L = AM
+			var/bypass
+			if(assembly == L.r_store || assembly == L.l_store)
+				bypass = TRUE //The injector has been put under the thick layer
+			if(!L.can_inject(null, 0, BP_TORSO, bypass))
+				L.visible_message("<span class='danger'>[acting_object] failed to pierce [L] thick clothing!</span>", \
+									"<span class='userdanger'>[acting_object] failed to pierce your thick clothing!</span>")
+				activate_pin(3)
+				return
+
 			L.visible_message("<span class='danger'>[acting_object] is trying to take a blood sample from [L]!</span>", \
 								"<span class='userdanger'>[acting_object] is trying to take a blood sample from you!</span>")
 			busy = TRUE
-			if(do_atom(src, L, extra_checks=CALLBACK(L, TYPE_PROC_REF(/mob/living, can_inject),null,0)))
+			if(do_atom(src, L, extra_checks=CALLBACK(L, TYPE_PROC_REF(/mob/living, can_inject),null,0,BP_TORSO,bypass)))
 				var/mob/living/carbon/LB = L
-				if(LB.take_blood(src, tramount))
+				var/datum/reagent/B
+				B = LB.take_blood(src, tramount)
+				if(B)
+					reagents.reagent_list += B
+					reagents.update_total()
+					AM.on_reagent_change()
+					reagents.handle_reactions()
 					L.visible_message("<span class='danger'>[acting_object] takes a blood sample from [L]!</span>", \
 					"<span class='userdanger'>[acting_object] takes a blood sample from you!</span>")
 				else
@@ -182,15 +219,17 @@
 				activate_pin(3)
 				return
 
-			if(!AM.can_be_injected_by())
+			if(!AM.is_open_container())
 				activate_pin(3)
 				return
 			tramount = min(tramount, AM.reagents.total_volume)
 			AM.reagents.trans_to(src, tramount)
+	push_vol()
 	activate_pin(2)
 
 
 
+
 /obj/item/integrated_circuit/reagent/pump
 	name = "reagent pump"
 	desc = "Moves liquids safely inside a machine, or even nearby it."
@@ -353,11 +392,14 @@
 	complexity = 4
 	inputs = list()
 	outputs = list("volume used" = IC_PINTYPE_NUMBER,"self reference" = IC_PINTYPE_REF)
-	activators = list()
+	activators = list("push ref" = IC_PINTYPE_PULSE_IN)
 	spawn_flags = IC_SPAWN_DEFAULT|IC_SPAWN_RESEARCH
 	origin_tech = list(TECH_ENGINEERING = 2, TECH_DATA = 2, TECH_BIO = 2)
 	volume = 60
 
+/obj/item/integrated_circuit/reagent/storage/do_work()
+	set_pin_data(IC_OUTPUT, 2, WEAKREF(src))
+	push_data()
 
 /obj/item/integrated_circuit/reagent/storage/interact(mob/user)
 	set_pin_data(IC_OUTPUT, 2, WEAKREF(src))
@@ -382,7 +424,7 @@
 	name = "chemical heater"
 	desc = "Stores liquid inside the device away from electrical components.  It can store up to 60u.  It will heat or cool the reagents \
 	to the target temperature when turned on."
-	icon_state = "heater"
+	icon_state = "reagent_storage"
 	complexity = 8
 	inputs = list(
 		"target temperature" = IC_PINTYPE_NUMBER,
@@ -422,7 +464,7 @@
 	category_text = "Reagent"
 	name = "reagent funnel"
 	desc = "A funnel with a small pump that lets you refill an internal reagent storage."
-	icon_state = "reagent_funnel"
+	icon_state = "reagent_pump"
 	can_be_asked_input = TRUE
 	inputs = list(
 		"target" = IC_PINTYPE_REF
@@ -456,7 +498,7 @@
 	name = "tubing"
 	desc = "A length of flexible piping that can be used to connect one container to another."
 	extended_desc = "Use these to supply your fuel cell with never-ending phoron! Beware of leaks."
-	icon_state = "reagent_funnel"
+	icon_state = "reagent_pump"
 	atom_flags = OPENCONTAINER
 	inputs = list(
 		"toggle cap"		= IC_PINTYPE_BOOLEAN,
@@ -492,7 +534,7 @@
 /obj/item/integrated_circuit/reagent/storage/grinder
 	name = "reagent grinder"
 	desc = "This is a reagent grinder.  It accepts a ref to something, and refines it into reagents.  It can store up to 100u."
-	icon_state = "blender"
+	icon_state = "reagent_storage"
 	extended_desc = ""
 	inputs = list(
 		"target" = IC_PINTYPE_REF

code/modules/integrated_electronics/subtypes/trig.dm

@@ -74,6 +74,90 @@
 	push_data()
 	activate_pin(2)
 
+// ArcSine //
+
+/obj/item/integrated_circuit/trig/arcsine
+	name = "arcsin circuit"
+	desc = "Reverse function of sine."
+	icon_state = "sine"
+	inputs = list("A" = IC_PINTYPE_NUMBER)
+	spawn_flags = IC_SPAWN_DEFAULT|IC_SPAWN_RESEARCH
+
+/obj/item/integrated_circuit/trig/arcsine/do_work()
+	var/result = null
+	var/A = get_pin_data(IC_INPUT, 1)
+	if(!isnull(A))
+		result = arcsin(A)
+
+	set_pin_data(IC_OUTPUT, 1, result)
+	push_data()
+	activate_pin(2)
+
+// ArcCos //
+
+/obj/item/integrated_circuit/trig/arccos
+	name = "arccos circuit"
+	desc = "Reverse function of cosine."
+	icon_state = "cosine"
+	inputs = list("A" = IC_PINTYPE_NUMBER)
+	spawn_flags = IC_SPAWN_DEFAULT|IC_SPAWN_RESEARCH
+
+/obj/item/integrated_circuit/trig/arccos/do_work()
+	var/result = null
+	var/A = get_pin_data(IC_INPUT, 1)
+	if(!isnull(A))
+		result = arccos(A)
+
+	set_pin_data(IC_OUTPUT, 1, result)
+	push_data()
+	activate_pin(2)
+
+// ArcTan //
+
+/obj/item/integrated_circuit/trig/arctan
+	name = "arctan circuit"
+	desc = "Reverse function of tangent."
+	icon_state = "tangent"
+	inputs = list("A" = IC_PINTYPE_NUMBER)
+	spawn_flags = IC_SPAWN_DEFAULT|IC_SPAWN_RESEARCH
+
+/obj/item/integrated_circuit/trig/arctan/do_work()
+	var/result = null
+	var/A = get_pin_data(IC_INPUT, 1)
+	if(!isnull(A))
+		result = arctan(A)
+
+	set_pin_data(IC_OUTPUT, 1, result)
+	push_data()
+	activate_pin(2)
+
+// ArcTan2 //
+
+/obj/item/integrated_circuit/trig/arctantwo
+	name = "arctantwo circuit"
+	desc = "Returns the degree between two points in an x and y system. The delta is gained by subtracting the target by the origin. Leave origin at 0 for relative x and y."
+	icon_state = "tangent"
+	inputs = list(
+		"X1 Origin" = IC_PINTYPE_NUMBER,
+		"Y1 Origin" = IC_PINTYPE_NUMBER,
+		"X2 Target" = IC_PINTYPE_NUMBER,
+		"Y2 Target" = IC_PINTYPE_NUMBER
+		)
+	spawn_flags = IC_SPAWN_DEFAULT|IC_SPAWN_RESEARCH
+
+/obj/item/integrated_circuit/trig/arctantwo/do_work()
+	var/result = null
+	var/X1 = get_pin_data(IC_INPUT, 1)
+	var/Y1 = get_pin_data(IC_INPUT, 2)
+	var/X2 = get_pin_data(IC_INPUT, 3)
+	var/Y2 = get_pin_data(IC_INPUT, 4)
+	if(!isnull(X1) && !isnull(X2) && !isnull(Y1) && !isnull(Y2))
+		result = arctantwo(X1,Y1,X2,Y2)
+
+	set_pin_data(IC_OUTPUT, 1, result)
+	push_data()
+	activate_pin(2)
+
 // Cosecant //
 
 /obj/item/integrated_circuit/trig/cosecant