More Additions

You can now cancel inputting on a text or numberpad.
Zero is now displayed properly on the UI and not be shown as null.
The small and medium assemblies now have real sprites.
Total health percentage for med scanners and advanced med scanners now reports a proper percentage and not 1 or 0.
The constant memory chip now can be set by using it in hand, making it usable.
The constant memory chip now accepts refs as data to store.  To use, select 'ref' when using inhand, then hit it against the thing you want to store.

code/modules/integrated_electronics/_defines.dm

@@ -277,7 +277,7 @@
 	..()
 
 /datum/integrated_io/proc/display_data()
-	if(!data)
+	if(isnull(data))
 		return "(null)" // Empty data means nothing to show.
 	if(istext(data))
 		return "(\"[data]\")" // Wraps the 'string' in escaped quotes, so that people know it's a 'string'.

code/modules/integrated_electronics/assemblies.dm

@@ -3,19 +3,21 @@
 	desc = "It's a case, for building electronics with."
 	w_class = 2
 	icon = 'icons/obj/electronic_assemblies.dmi'
-	icon_state = "setup"
+	icon_state = "setup_small"
 	var/max_components = 10
 	var/max_complexity = 30
 	var/opened = 0
 
 /obj/item/device/electronic_assembly/medium
 	name = "electronic mechanism"
+	icon_state = "setup_medium"
 	w_class = 3
 	max_components = 20
 	max_complexity = 50
 
 /obj/item/device/electronic_assembly/large
 	name = "electronic machine"
+	icon_state = "setup"
 	w_class = 4
 	max_components = 30
 	max_complexity = 60
@@ -35,6 +37,12 @@
 		IC.work()
 */
 
+/obj/item/device/electronic_assembly/update_icon()
+	if(opened)
+		icon_state = initial(icon_state) + "-open"
+	else
+		icon_state = initial(icon_state)
+
 /obj/item/device/electronic_assembly/examine(mob/user)
 	..()
 	if(user.Adjacent(src))
@@ -87,6 +95,7 @@
 		playsound(src.loc, 'sound/items/Crowbar.ogg', 50, 1)
 		opened = !opened
 		user << "<span class='notice'>You [opened ? "opened" : "closed"] \the [src].</span>"
+		update_icon()
 	if(istype(I, /obj/item/device/integrated_electronics/wirer))
 		if(opened)
 			var/obj/item/integrated_circuit/IC = input(user, "Which circuit do you want to examine?", "Examination") as null|anything in contents

code/modules/integrated_electronics/input_output.dm

@@ -41,7 +41,7 @@
 	)
 
 /obj/item/integrated_circuit/input/numberpad/ask_for_input(mob/user)
-	var/new_input = input(user, "Enter a number, please.","Number pad") as num
+	var/new_input = input(user, "Enter a number, please.","Number pad") as null|num
 	if(isnum(new_input))
 		var/datum/integrated_io/O = outputs[1]
 		O.data = new_input
@@ -67,7 +67,7 @@
 	)
 
 /obj/item/integrated_circuit/input/textpad/ask_for_input(mob/user)
-	var/new_input = input(user, "Enter some words, please.","Number pad") as text
+	var/new_input = input(user, "Enter some words, please.","Number pad") as null|text
 	if(new_input && istext(new_input))
 		var/datum/integrated_io/O = outputs[1]
 		O.data = new_input
@@ -101,7 +101,7 @@
 			return
 		var/mob/living/carbon/human/H = I.data
 		if(H.Adjacent(get_turf(src))) // Like normal analysers, it can't be used at range.
-			var/total_health = round(H.health/H.maxHealth)*100
+			var/total_health = round(H.health/H.maxHealth, 0.1)*100
 			var/missing_health = H.maxHealth - H.health
 
 			var/datum/integrated_io/total = outputs[1]
@@ -144,7 +144,7 @@
 			return
 		var/mob/living/carbon/human/H = I.data
 		if(H.Adjacent(get_turf(src))) // Like normal analysers, it can't be used at range.
-			var/total_health = round(H.health/H.maxHealth)*100
+			var/total_health = round(H.health/H.maxHealth, 0.1)*100
 			var/missing_health = H.maxHealth - H.health
 
 			var/datum/integrated_io/total = outputs[1]

code/modules/integrated_electronics/memory.dm

@@ -58,26 +58,41 @@
 	number_of_outputs = 1
 	number_of_activators = 1
 	activator_names = list(
-		"trigger output"
+		"push data"
 	)
+	var/accepting_refs = 0
 
 /obj/item/integrated_circuit/memory/constant/work()
-	if(..())
-		var/datum/integrated_io/O = outputs[1]
-		O.push_data()
-
-/obj/item/integrated_circuit/memory/constant/attack_hand(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")
+	O.push_data()
+
+/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/new_data = null
 	switch(type_to_use)
 		if("string")
+			accepting_refs = 0
 			new_data = input("Now type in a string.","[src] string writing") as null|text
 			if(istext(new_data))
 				O.data = new_data
-				user << "<span class='notice'>You set \the [src]'s memory to '[new_data]'.</span>"
+				user << "<span class='notice'>You set \the [src]'s memory to [O.display_data()].</span>"
 		if("number")
+			accepting_refs = 0
 			new_data = input("Now type in a number.","[src] number writing") as null|num
 			if(isnum(new_data))
 				O.data = new_data
-				user << "<span class='notice'>You set \the [src]'s memory to '[new_data]'.</span>"
+				user << "<span class='notice'>You set \the [src]'s memory to [O.display_data()].</span>"
+		if("ref")
+			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>"
+
+/obj/item/integrated_circuit/memory/constant/afterattack(atom/target, mob/living/user, proximity)
+	if(accepting_refs && proximity)
+		var/datum/integrated_io/O = outputs[1]
+		O.data = target
+		visible_message("<span class='notice'>[user] slides \a [src]'s over \the [target].</span>")
+		user << "<span class='notice'>You set \the [src]'s memory to a reference to [O.display_data()].  The ref scanner is \
+		now off.</span>"
+		accepting_refs = 0