Port current /tg/ lighting system

code/modules/mining/mine_items.dm

@@ -4,7 +4,7 @@
 	name = "lantern"
 	icon_state = "lantern"
 	desc = "A mining lantern."
-	brightness_on = 6			// luminosity when on
+	light_range = 6			// luminosity when on
 	light_color = "FF9933" // A slight yellow/orange color.
 
 /*****************************Pickaxe********************************/

code/modules/mining/mine_outcrops.dm

@@ -14,7 +14,7 @@
 /obj/structure/outcrop/Initialize()
 	. = ..()
 	if(prob(1))
-		overlays += image(icon, "[initial(icon_state)]-egg")
+		add_overlay("[initial(icon_state)]-egg")
 
 /obj/structure/outcrop/diamond
 	name = "shiny outcrop"

code/modules/mining/mine_turfs.dm

@@ -134,7 +134,7 @@ turf/simulated/mineral/floor/light_corner
 
 /turf/simulated/mineral/proc/update_general()
 	update_icon(1)
-	recalc_atom_opacity()
+	recalculate_directional_opacity()
 	if(ticker && ticker.current_state == GAME_STATE_PLAYING)
 		reconsider_lights()
 		if(air_master)

code/modules/mining/shelter_atoms_vr.dm

@@ -266,6 +266,7 @@ GLOBAL_LIST_EMPTY(unique_deployable)
 	light_range = 5
 	light_power = 1.2
 	light_color = "#DDFFD3"
+	light_on = TRUE
 	pixel_y = -4
 	max_n_of_items = 100
 
@@ -331,6 +332,7 @@ GLOBAL_LIST_EMPTY(unique_deployable)
 	light_range = 3
 	light_power = 1
 	light_color = "#FFFFFF"
+	light_on = TRUE
 
 /obj/structure/fans/hardlight/ex_act()
 	return