I Can't Believe It's Not Circuits (it is)

Fixes numberpad and letterpad pulsing.
Debugger and Constant chip can now have null written to it.
Adds new sound output, with two types so far.  One being the 'beeper' type, which can do things like buzz, ping, beep, etc.  The second type is a securitron speaker, which allows us to get closer to building a functioning Beepsky.

code/modules/integrated_electronics/input_output.dm

@@ -47,8 +47,7 @@
 		O.data = new_input
 		O.push_data()
 		var/datum/integrated_io/A = activators[1]
-		if(A.linked)
-			A.holder.work()
+		A.push_data()
 
 /obj/item/integrated_circuit/input/textpad
 	name = "text pad"
@@ -73,8 +72,7 @@
 		O.data = new_input
 		O.push_data()
 		var/datum/integrated_io/A = activators[1]
-		if(A.linked)
-			A.holder.work()
+		A.push_data()
 
 /obj/item/integrated_circuit/input/med_scanner
 	name = "integrated medical analyser"
@@ -368,4 +366,71 @@
 	)
 
 /obj/item/integrated_circuit/output/light/advanced/on_data_written()
-	update_lighting()
+	update_lighting()
+
+/obj/item/integrated_circuit/output/sound
+	name = "speaker circuit"
+	desc = "A miniature speaker is attached to this component."
+	icon_state = "speaker"
+	complexity = 8
+	cooldown_per_use = 4 SECONDS
+	number_of_inputs = 3
+	number_of_outputs = 0
+	number_of_activators = 1
+	input_names = list(
+		"sound ID",
+		"volume",
+		"frequency"
+	)
+	activator_names = list(
+		"play sound"
+	)
+	var/list/sounds = list()
+
+/obj/item/integrated_circuit/output/sound/work()
+	if(..())
+		var/datum/integrated_io/ID = inputs[1]
+		var/datum/integrated_io/vol = inputs[2]
+		var/datum/integrated_io/frequency = inputs[3]
+		if(istext(ID.data) && isnum(vol.data) && isnum(frequency.data))
+			var/selected_sound = sounds[ID.data]
+			vol.data = Clamp(vol.data, 0, 1)
+			frequency.data = Clamp(frequency.data, 0, 100)
+			playsound(get_turf(src), selected_sound, vol.data, frequency.data, -1)
+
+/obj/item/integrated_circuit/output/sound/beeper
+	name = "beeper circuit"
+	desc = "A miniature speaker is attached to this component.  This is often used in the construction of motherboards, which use \
+	the speaker to tell the user if something goes very wrong when booting up.  It can also do other similar synthetic sounds such \
+	as buzzing, pinging, chiming, and more."
+	extended_desc = "The first input pin determines what sound is used.  The choices are; beep, chime, buzz sigh, buzz twice, ping, \
+	synth yes, synth no, warning buzz.  The second pin determines the volume of sound that is played, and the third determines if \
+	the frequency of the sound will vary with each activation."
+	sounds = list(
+		"beep"			= 'sound/machines/twobeep.ogg',
+		"chime"			= 'sound/machines/chime.ogg',
+		"buzz sigh"		= 'sound/machines/buzz-sigh.ogg',
+		"buzz twice"	= 'sound/machines/buzz-two.ogg',
+		"ping"			= 'sound/machines/ping.ogg',
+		"synth yes"		= 'sound/machines/synth_yes.ogg',
+		"synth no"		= 'sound/machines/synth_no.ogg',
+		"warning buzz"	= 'sound/machines/warning-buzzer.ogg'
+		)
+
+/obj/item/integrated_circuit/output/sound/beepsky
+	name = "securitron sound circuit"
+	desc = "A miniature speaker is attached to this component.  Considered by some to be the essential component for a securitron."
+	extended_desc = "The first input pin determines what sound is used.  The choices are; creep, criminal, freeze, god, \
+	i am the law, insult, radio, secure day.  The second pin determines the volume of sound that is played, and the \
+	third determines if the frequency of the sound will vary with each activation."
+	sounds = list(
+		"creep"			= 'sound/voice/bcreep.ogg',
+		"criminal"		= 'sound/voice/bcriminal.ogg',
+		"freeze"		= 'sound/voice/bfreeze.ogg',
+		"god"			= 'sound/voice/bgod.ogg',
+		"i am the law"	= 'sound/voice/biamthelaw.ogg',
+		"insult"		= 'sound/voice/binsult.ogg',
+		"radio"			= 'sound/voice/bradio.ogg',
+		"secure day"	= 'sound/voice/bsecureday.ogg',
+		)
+

code/modules/integrated_electronics/memory.dm

@@ -68,7 +68,7 @@
 
 /obj/item/integrated_circuit/memory/constant/attack_self(mob/user)
 	var/datum/integrated_io/O = outputs[1]
-	var/type_to_use = input("Please choose a type to use.","[src] type setting") as null|anything in list("string","number","ref")
+	var/type_to_use = input("Please choose a type to use.","[src] type setting") as null|anything in list("string","number","ref", "null")
 	var/new_data = null
 	switch(type_to_use)
 		if("string")
@@ -87,6 +87,9 @@
 			accepting_refs = 1
 			user << "<span class='notice'>You turn \the [src]'s ref scanner on.  Slide it across \
 			an object for a ref of that object to save it in memory.</span>"
+		if("null")
+			O.data = null
+			user << "<span class='notice'>You set \the [src]'s memory to absolutely nothing.</span>"
 
 /obj/item/integrated_circuit/memory/constant/afterattack(atom/target, mob/living/user, proximity)
 	if(accepting_refs && proximity)

code/modules/integrated_electronics/tools.dm

@@ -116,7 +116,7 @@
 	var/accepting_refs = 0
 
 /obj/item/device/integrated_electronics/debugger/attack_self(mob/user)
-	var/type_to_use = input("Please choose a type to use.","[src] type setting") as null|anything in list("string","number","ref")
+	var/type_to_use = input("Please choose a type to use.","[src] type setting") as null|anything in list("string","number","ref", "null")
 	var/new_data = null
 	switch(type_to_use)
 		if("string")
@@ -135,6 +135,9 @@
 			accepting_refs = 1
 			user << "<span class='notice'>You turn \the [src]'s ref scanner on.  Slide it across \
 			an object for a ref of that object to save it in memory.</span>"
+		if("null")
+			data_to_write = null
+			user << "<span class='notice'>You set \the [src]'s memory to absolutely nothing.</span>"
 
 /obj/item/device/integrated_electronics/debugger/afterattack(atom/target, mob/living/user, proximity)
 	if(accepting_refs && proximity)

code/modules/research/designs.dm

@@ -1732,6 +1732,17 @@ CIRCUITS BELOW
 	build_path = /obj/item/integrated_circuit/output/light/advanced
 	sort_string = "WAAEI"
 
+/datum/design/circuit/integrated_circuit/input_output/beeper
+	id = "cc-sound_beeper"
+	build_path = /obj/item/integrated_circuit/output/sound/beeper
+	sort_string = "WAAEJ"
+
+/datum/design/circuit/integrated_circuit/input_output/beepsky_sound
+	id = "cc-sound_beepsky"
+	build_path = /obj/item/integrated_circuit/output/sound/beepsky
+	sort_string = "WAAEK"
+	req_tech = list(TECH_ENGINEERING = 2, TECH_DATA = 2, TECH_ILLEGAL = 1)
+
 
 /datum/design/circuit/integrated_circuit/logic/AssembleDesignName()
 	..()