Gives FBP's a proc to change their monitor display without using a mask item. (#7452)

* Synthetics display monitor

Does a change to the synthetics monitor heads and other heads that have displays, allowing them to have those displays without using a mask, using a proc that is given to them. works by basically replacing eye sprite.

* changelog.

* removes the monitor mask item.

* switches && for || in line 363

* moves line of code

code/modules/mob/living/carbon/human/human_helpers.dm

@@ -102,6 +102,7 @@
 	var/obj/item/organ/external/T = organs_by_name[BP_TORSO]
 	if(T && T.robotic >= ORGAN_ROBOT)
 		src.verbs += /mob/living/carbon/human/proc/self_diagnostics
+		src.verbs += /mob/living/carbon/human/proc/setmonitor_state
 		var/datum/robolimb/R = all_robolimbs[T.model]
 		synthetic = R
 		return synthetic

code/modules/mob/living/carbon/human/human_powers.dm

@@ -347,3 +347,28 @@
 		to_chat(src, "<span class='critical'>Your regeneration is interrupted!</span>")
 		adjust_nutrition(-75)
 		active_regen = FALSE
+
+/mob/living/carbon/human/proc/setmonitor_state()
+	set name = "Set monitor display"
+	set desc = "Set your monitor display"
+	set category = "IC"
+	if(stat)
+		to_chat(src,"<span class='warning'>You must be awake and standing to perform this action!</span>")
+		return
+	var/obj/item/organ/external/head/E = organs_by_name[BP_HEAD]
+	if(!E)
+		to_chat(src,"<span class='warning'>You don't seem to have a head!</span>")
+		return
+	var/datum/robolimb/robohead = all_robolimbs[E.model]
+	if(!robohead.monitor_styles || !robohead.monitor_icon)
+		to_chat(src,"<span class='warning'>Your head doesn't have a monitor or it doens't support to be changed!</span>")
+		return
+	var/list/states
+	if(!states)
+		states = params2list(robohead.monitor_styles)
+	var/choice = input("Select a screen icon.") as null|anything in states
+	if(choice)
+		E.eye_icon_location = robohead.monitor_icon
+		E.eye_icon = states[choice]
+		to_chat(src,"<span class='warning'>You set your monitor to display [choice]!</span>")
+		update_icons_body()

code/modules/mob/living/carbon/human/update_icons.dm

@@ -236,7 +236,9 @@ var/global/list/damage_icon_parts = list() //see UpdateDamageIcon()
 		icon_key += "[rgb(eyes.eye_colour[1], eyes.eye_colour[2], eyes.eye_colour[3])]"
 	else
 		icon_key += "[r_eyes], [g_eyes], [b_eyes]"
-
+	var/obj/item/organ/external/head/head = organs_by_name[BP_HEAD]
+	if(head)
+		icon_key += "[head.eye_icon]"
 	for(var/organ_tag in species.has_limbs)
 		var/obj/item/organ/external/part = organs_by_name[organ_tag]
 		if(isnull(part) || part.is_stump())
@@ -267,7 +269,6 @@ var/global/list/damage_icon_parts = list() //see UpdateDamageIcon()
 				icon_key += "1"
 
 	icon_key = "[icon_key][husk ? 1 : 0][fat ? 1 : 0][hulk ? 1 : 0][skeleton ? 1 : 0]"
-
 	var/icon/base_icon
 	if(human_icon_cache[icon_key])
 		base_icon = human_icon_cache[icon_key]