Port current /tg/ lighting system

code/modules/projectiles/guns/energy/gunsword_vr.dm

@@ -123,4 +123,4 @@
 		return (BRUTELOSS|FIRELOSS)
 
 /obj/item/weapon/cell/device/weapon/gunsword/update_icon()
-	overlays.Cut()
+	cut_overlays()

code/modules/projectiles/guns/energy/protector_vr.dm

@@ -57,7 +57,7 @@
 
 //Update icons from /tg/, so fancy! Use this more!
 /obj/item/weapon/gun/energy/gun/protector/update_icon()
-	overlays.Cut()
+	cut_overlays()
 	var/ratio = 0
 
 	/* Don't have one for this gun
@@ -68,7 +68,7 @@
 
 	var/iconState = "[icon_state]_charge"
 	if (modifystate)
-		overlays += "[icon_state]_[modifystate]"
+		add_overlay("[icon_state]_[modifystate]")
 		iconState += "_[modifystate]"
 		/* Don't have one for this gun
 		if(itemState)
@@ -78,21 +78,21 @@
 		ratio = CEILING(((power_supply.charge / power_supply.maxcharge) * charge_sections), 1)
 
 		if(power_supply.charge < charge_cost)
-			overlays += "[icon_state]_empty"
+			add_overlay("[icon_state]_empty")
 		else
 			if(!shaded_charge)
 				var/mutable_appearance/charge_overlay = mutable_appearance(icon, iconState)
 				for(var/i = ratio, i >= 1, i--)
 					charge_overlay.pixel_x = ammo_x_offset * (i - 1)
-					overlays += charge_overlay
+					add_overlay(charge_overlay)
 			else
-				overlays += "[icon_state]_[modifystate][ratio]"
+				add_overlay("[icon_state]_[modifystate][ratio]")
 
 	if(can_flashlight & gun_light)
 		var/mutable_appearance/flashlight_overlay = mutable_appearance(icon, light_state)
 		flashlight_overlay.pixel_x = flight_x_offset
 		flashlight_overlay.pixel_y = flight_y_offset
-		overlays += flashlight_overlay
+		add_overlay(flashlight_overlay)
 
 	/* Don't have one for this gun
 	if(itemState)

code/modules/projectiles/guns/projectile/automatic_vr.dm

@@ -145,11 +145,11 @@
 	if(ratio < 0.25 && ratio != 0)
 		ratio = 0.25
 	ratio = round(ratio, 0.25) * 100
-	overlays += "smg_[ratio]"
+	add_overlay("smg_[ratio]")
 
 /obj/item/weapon/gun/projectile/automatic/sol/update_icon()
 	icon_state = (ammo_magazine)? "SMG-IS" : "SMG-IS-empty"
-	overlays.Cut()
+	cut_overlays()
 	update_charge()
 
 //--------------- StG-60 ----------------

code/modules/projectiles/guns/projectile/pistol_vr.dm

@@ -28,12 +28,12 @@
 	origin_tech = list(TECH_COMBAT = 4, TECH_MATERIAL = 4)
 
 /obj/item/weapon/gun/projectile/lamia/update_icon()
-	overlays.Cut()
+	cut_overlays()
 	if(!ammo_magazine)
 		return
 	var/ratio = ammo_magazine.stored_ammo.len * 100 / ammo_magazine.max_ammo
 	ratio = round(ratio, 33)
-	overlays += "deagle_[ratio]"
+	add_overlay("deagle_[ratio]")
 
 //Civilian gun
 /obj/item/weapon/gun/projectile/giskard

code/modules/projectiles/guns/projectile/revolver_vr.dm

@@ -12,13 +12,13 @@
 	origin_tech = list(TECH_COMBAT = 3, TECH_MATERIAL = 3)
 
 /obj/item/weapon/gun/projectile/revolver/consul/proc/update_charge()
+	cut_overlays()
 	if(loaded.len==0)
-		overlays += "inspector_off"
+		add_overlay("inspector_off")
 	else
-		overlays += "inspector_on"
+		add_overlay("inspector_on")
 
 /obj/item/weapon/gun/projectile/revolver/consul/update_icon()
-	overlays.Cut()
 	update_charge()
 
 //.357 special ammo

code/modules/projectiles/projectile.dm

@@ -11,6 +11,9 @@
 	pass_flags = PASSTABLE
 	mouse_opacity = 0
 	hitsound = 'sound/weapons/pierce.ogg'
+
+	blocks_emissive = EMISSIVE_BLOCK_GENERIC
+
 	var/hitsound_wall = null // Played when something hits a wall, or anything else that isn't a mob.
 
 	////TG PROJECTILE SYTSEM
@@ -49,6 +52,7 @@
 	var/datum/beam_components_cache/beam_components
 
 	//Fancy hitscan lighting effects!
+	light_on = TRUE
 	var/hitscan_light_intensity = 1.5
 	var/hitscan_light_range = 0.75
 	var/hitscan_light_color_override