borgs can walk, vtec overhaul, no more borg light and some glow flicker (#15901)

* borgs can walk, no more borg light flicker

* rework vtec

* small oversight on glow

* .

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

@@ -403,7 +403,8 @@
 		blob.rad_glow = CLAMP(radiation,0,250)
 		set_light(0)
 		blob.set_light(max(1,min(5,radiation/15)), max(1,min(10,radiation/25)), blob.color)
-		blob.handle_light()
+	else
+		blob.set_light(0)
 	if(has_hat)
 		blob.hat = new_hat
 		new_hat.forceMove(src)

code/modules/mob/living/silicon/robot/life.dm

@@ -370,8 +370,8 @@
 		IgniteMob()
 
 /mob/living/silicon/robot/handle_light()
-	. = ..()
-	if(. == FALSE) // If no other light sources are on.
-		if(lights_on)
-			set_light(integrated_light_power, 1, "#FFFFFF")
-			return TRUE
+	if(lights_on)
+		set_light(integrated_light_power, 1, "#FFFFFF")
+		return TRUE
+	else
+		. = ..()

code/modules/mob/living/silicon/robot/robot.dm

@@ -117,6 +117,7 @@
 	)
 
 	var/has_recoloured = FALSE
+	var/vtec_active = FALSE
 
 /mob/living/silicon/robot/New(loc, var/unfinished = 0)
 	spark_system = new /datum/effect/effect/system/spark_spread()
@@ -533,12 +534,9 @@
 /mob/living/silicon/robot/proc/toggle_vtec()
 	set name = "Toggle VTEC"
 	set category = "Abilities"
-	if(speed == -1)
-		to_chat(src, "<span class='filter_notice'>VTEC module disabled.</span>")
-		speed = 0
-	else
-		to_chat(src, "<span class='filter_notice'>VTEC module enabled.</span>")
-		speed = -1
+	vtec_active = !vtec_active
+	hud_used.toggle_vtec_control()
+	to_chat(src, "<span class='filter_notice'>VTEC module [vtec_active  ? "enabled" : "disabled"].</span>")
 
 // update the status screen display
 /mob/living/silicon/robot/Stat()

code/modules/mob/living/simple_mob/subtypes/vore/oregrub.dm

@@ -88,6 +88,8 @@
 				"rad"		= 100
 				)
 
+	glow_override = TRUE
+
 /mob/living/simple_mob/vore/oregrub/lava
 	name = "mature lavagrub"
 	desc = "A mature, rocky lavagrub"
@@ -141,6 +143,8 @@
 	if(. == 0 && !is_dead())
 		set_light(2.5, 1, COLOR_ORANGE)
 		return 1
+	else if(is_dead())
+		glow_override = FALSE
 
 /mob/living/simple_mob/vore/oregrub/lava/death()
 	set_light(0)

code/modules/mob/living/simple_mob/subtypes/vore/scel.dm

@@ -242,20 +242,3 @@
 	icon_state = "scel_red"
 	icon_rest = "scel_red-rest"
 	random_skin = 0
-
-/mob/living/simple_mob/vore/scel/handle_light()
-	if(glow_override)
-		return FALSE
-
-	if(instability >= TECHNOMANCER_INSTABILITY_MIN_GLOW)
-		var/distance = round(sqrt(instability / 2))
-		if(distance)
-			set_light(distance, distance * 4, l_color = "#660066")
-			return TRUE
-
-	else if(glow_toggle)
-		set_light(glow_range, glow_intensity, glow_color)
-
-	else
-		set_light(0)
-		return FALSE

code/modules/mob/living/simple_mob/subtypes/vore/solargrub.dm

@@ -53,6 +53,8 @@ List of things solar grubs should be able to do:
 	var/shock_chance = 10 // Beware
 	var/tracked = FALSE
 
+	glow_override = TRUE
+
 /datum/say_list/solargrub
 	emote_see = list("squelches", "squishes")
 
@@ -138,6 +140,8 @@ List of things solar grubs should be able to do:
 	if(. == 0 && !is_dead())
 		set_light(2.5, 1, COLOR_YELLOW)
 		return 1
+	else if(is_dead())
+		glow_override = FALSE
 
 /mob/living/simple_mob/vore/solargrub/init_vore()
 	..()

code/modules/mob/living/simple_mob/subtypes/vore/solargrub_larva.dm

@@ -51,6 +51,8 @@ var/global/list/grub_machine_overlays = list()
 
 	ai_holder_type = /datum/ai_holder/simple_mob/solargrub_larva
 
+	glow_override = TRUE
+
 /mob/living/simple_mob/animal/solargrub_larva/New()
 	..()
 	existing_solargrubs += src
@@ -186,6 +188,8 @@ var/global/list/grub_machine_overlays = list()
 	if(. == 0 && !is_dead())
 		set_light(1.5, 1, COLOR_YELLOW)
 		return 1
+	else if(is_dead())
+		glow_override = FALSE
 
 
 /obj/machinery/abstract_grub_machine