IPC Lights (#1846)

changes:

IPCs now emit a weak light based on the color of their screen.
The system for making species emit light is modular, and Shells+HKs have been excluded from light emission.

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

@@ -40,6 +40,8 @@
 	var/virus_immune
 	var/short_sighted
 	var/bald = 0
+	var/light_range
+	var/light_power
 
 	// Language/culture vars.
 	var/default_language = "Ceti Basic"		 // Default language is used when 'say' is used without modifiers.
@@ -438,3 +440,6 @@
 		return 0
 	H.hud_used.move_intent.update_move_icon(H)
 	return 1
+
+/datum/species/proc/get_light_color(hair_style)
+	return

code/modules/mob/living/carbon/human/species/station/machine_subspecies.dm

@@ -17,6 +17,9 @@
 	icobase = 'icons/mob/human_races/r_human.dmi'
 	deform = 'icons/mob/human_races/robotic.dmi'
 
+	light_range = 0
+	light_power = 0
+
 	eyes = "eyes_s"
 	show_ssd = "completely quiescent"
 
@@ -48,6 +51,8 @@
 		"r_foot" = list("path" = /obj/item/organ/external/foot/right/shell)
 		)
 
+/datum/species/machine/shell/get_light_color(hair_style)
+	return
 
 /datum/species/machine/shell/handle_post_spawn(var/mob/living/carbon/human/H)
 	add_inherent_verbs(H)
@@ -128,6 +133,9 @@
 
 	sprint_speed_factor = 1.4
 
+/datum/species/machine/industrial/get_light_color(hair_style)
+	return LIGHT_COLOR_TUNGSTEN
+
 /datum/species/machine/industrial/handle_sprint_cost(var/mob/living/carbon/human/H, var/cost)
 	if (H.stat == CONSCIOUS)
 		H.bodytemperature += cost*0.9
@@ -156,6 +164,9 @@
 	icobase = 'icons/mob/human_races/r_terminator.dmi'
 	deform = 'icons/mob/human_races/r_terminator.dmi'
 
+	light_range = 0
+	light_power = 0
+
 	unarmed_types = list(/datum/unarmed_attack/terminator)
 	rarity_value = 20
 
@@ -231,6 +242,8 @@
 	sprint_speed_factor = 1.25
 	slowdown = 1
 
+/datum/species/machine/terminator/get_light_color(hair_style)
+	return
 
 /datum/species/machine/terminator/handle_sprint_cost(var/mob/living/carbon/human/H, var/cost)
 	if (H.stat == CONSCIOUS)

code/modules/mob/living/carbon/human/species/station/station.dm

@@ -355,6 +355,9 @@
 	icobase = 'icons/mob/human_races/r_machine.dmi'
 	deform = 'icons/mob/human_races/r_machine.dmi'
 
+	light_range = 2
+	light_power = 0.5
+
 	unarmed_types = list(/datum/unarmed_attack/punch)
 	rarity_value = 2
 
@@ -503,6 +506,55 @@ datum/species/machine/handle_post_spawn(var/mob/living/carbon/human/H)
 			var/DBQuery/update_query = dbcon.NewQuery("UPDATE ss13_ipc_tracking SET tag_status = :status WHERE player_ckey = :ckey AND character_name = :character_name")
 			update_query.Execute(query_details)
 
+/datum/species/machine/get_light_color(hair_style)
+	// I hate this, but I can't think of a better way that doesn't involve
+	// rewriting hair.
+	switch (hair_style)
+		if ("pink IPC screen")
+			return LIGHT_COLOR_PINK
+
+		if ("red IPC screen")
+			return LIGHT_COLOR_RED
+
+		if ("green IPC screen")
+			return LIGHT_COLOR_GREEN
+
+		if ("blue IPC screen")
+			return LIGHT_COLOR_BLUE
+
+		if ("breakout IPC screen")
+			return LIGHT_COLOR_CYAN
+
+		if ("eight IPC screen")
+			return LIGHT_COLOR_CYAN
+
+		if ("goggles IPC screen")
+			return LIGHT_COLOR_RED
+
+		if ("heart IPC screen")
+			return LIGHT_COLOR_PINK
+
+		if ("monoeye IPC screen")
+			return LIGHT_COLOR_ORANGE
+
+		if ("nature IPC screen")
+			return LIGHT_COLOR_CYAN
+
+		if ("orange IPC screen")
+			return LIGHT_COLOR_ORANGE
+
+		if ("purple IPC screen")
+			return LIGHT_COLOR_PURPLE
+
+		if ("shower IPC screen")
+			return "#FFFFFF"
+
+		if ("static IPC screen")
+			return "#FFFFFF"
+
+		if ("yellow IPC screen")
+			return LIGHT_COLOR_YELLOW
+
 /datum/species/bug
 	name = "Vaurca Worker"
 	short_name = "vau"

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

@@ -389,6 +389,16 @@ var/global/list/damage_icon_parts = list()
 
 			face_standing.Blend(hair_s, ICON_OVERLAY)
 
+			if (species.light_range)
+				var/col = species.get_light_color(h_style)
+				if (!col)
+					col = "#FFFFFF"
+					
+				set_light(species.light_range, species.light_power, col, uv = 0, angle = LIGHT_WIDE)
+				
+	else if (species.light_range)
+		set_light(FALSE)	
+		
 	overlays_standing[HAIR_LAYER]	= image(face_standing)
 
 	if(update_icons)   update_icons()