Add constructable floor lights + mapping subtypes (#93537)

## About The Pull Request
Features:
- Floor lights can be constructed using a small light fixture on the
turf you are standing on
- Floor light construction sprites
- `/burned` subtypes for lights
- Convert `/build` subtypes to `/empty` subtypes with `UpdatePaths`
script

## Why It's Good For The Game
Floor lights can now be constructed in game using the same mechanics as
other lights. The `/burned` and `/empty` subtypes might be useful for
mapping.

## Changelog
🆑
add: Add constructable floor lights by using a small light fixture on
the floor. They are constructed the same way as other lights.
qol: Add `/burned` subtype to `/obj/machinery/light` for mapping
shenanigans
image: Add floor light construction sprites
map: Converted the `/built` subtype for `/obj/machinery/light` to be
`/empty` and added an UpdatePaths script.
/🆑

---------

Co-authored-by: SyncIt21 <110812394+SyncIt21@users.noreply.github.com>

code/modules/power/lighting/light.dm

@@ -424,6 +424,8 @@
 			frame = new /obj/item/wallframe/light_fixture(drop_point)
 		if("bulb")
 			frame = new /obj/item/wallframe/light_fixture/small(drop_point)
+		if("floor bulb")
+			frame = new /obj/item/wallframe/light_fixture/small(drop_point)
 	if(!disassembled)
 		frame.take_damage(frame.max_integrity * 0.5, sound_effect = FALSE)
 		if(status != LIGHT_BROKEN)
@@ -728,7 +730,7 @@
 	layer = BELOW_CATWALK_LAYER
 	plane = FLOOR_PLANE
 	light_type = /obj/item/light/bulb
-	fitting = "bulb"
+	fitting = "floor bulb"
 	nightshift_brightness = 4
 	fire_brightness = 4.5
 
@@ -739,6 +741,15 @@
 	status = LIGHT_BROKEN
 	icon_state = "floor-broken"
 
+/obj/machinery/light/floor/burned
+	status = LIGHT_BURNED
+	icon_state = "floor-burned"
+
+/obj/machinery/light/floor/empty
+	icon_state = "floor-empty"
+	start_with_cell = FALSE
+	status = LIGHT_EMPTY
+
 /obj/machinery/light/floor/transport
 	name = "transport light"
 	break_if_moved = FALSE

code/modules/power/lighting/light_construct.dm

@@ -141,9 +141,11 @@
 				tool.play_tool_sound(src, 75)
 				switch(fixture_type)
 					if("tube")
-						new_light = new /obj/machinery/light/built(loc)
+						new_light = new /obj/machinery/light/empty(loc)
 					if("bulb")
-						new_light = new /obj/machinery/light/small/built(loc)
+						new_light = new /obj/machinery/light/small/empty(loc)
+					if("floor")
+						new_light = new /obj/machinery/light/floor/empty(loc)
 				new_light.setDir(dir)
 				new_light.find_and_hang_on_wall()
 				transfer_fingerprints_to(new_light)
@@ -169,3 +171,9 @@
 	icon_state = "bulb-construct-stage1"
 	fixture_type = "bulb"
 	sheets_refunded = 1
+
+/obj/structure/light_construct/floor
+	name = "floor light fixture frame"
+	icon_state = "floor-construct-stage1"
+	fixture_type = "floor"
+	sheets_refunded = 1

code/modules/power/lighting/light_mapping_helpers.dm

@@ -2,7 +2,11 @@
 	status = LIGHT_BROKEN
 	icon_state = "tube-broken"
 
-/obj/machinery/light/built
+/obj/machinery/light/burned
+	status = LIGHT_BURNED
+	icon_state = "tube-burned"
+
+/obj/machinery/light/empty
 	icon_state = "tube-empty"
 	start_with_cell = FALSE
 	status = LIGHT_EMPTY
@@ -68,7 +72,11 @@
 	status = LIGHT_BROKEN
 	icon_state = "bulb-broken"
 
-/obj/machinery/light/small/built
+/obj/machinery/light/small/burned
+	status = LIGHT_BURNED
+	icon_state = "bulb-burned"
+
+/obj/machinery/light/small/empty
 	icon_state = "bulb-empty"
 	start_with_cell = FALSE
 	status = LIGHT_EMPTY
@@ -105,7 +113,7 @@ MAPPING_DIRECTIONAL_HELPERS(/obj/machinery/light/broken, 0)
 MAPPING_DIRECTIONAL_HELPERS(/obj/structure/light_construct, 0)
 
 // ---- Tube frames
-MAPPING_DIRECTIONAL_HELPERS(/obj/machinery/light/built, 0)
+MAPPING_DIRECTIONAL_HELPERS(/obj/machinery/light/empty, 0)
 
 // ---- No nightlight tubes
 MAPPING_DIRECTIONAL_HELPERS(/obj/machinery/light/no_nightlight, 0)
@@ -148,7 +156,7 @@ MAPPING_DIRECTIONAL_HELPERS(/obj/machinery/light/small, 0)
 MAPPING_DIRECTIONAL_HELPERS(/obj/structure/light_construct/small, 0)
 
 // ---- Bulb frames
-MAPPING_DIRECTIONAL_HELPERS(/obj/machinery/light/small/built, 0)
+MAPPING_DIRECTIONAL_HELPERS(/obj/machinery/light/small/empty, 0)
 
 // ---- Broken bulbs
 MAPPING_DIRECTIONAL_HELPERS(/obj/machinery/light/small/broken, 0)

code/modules/power/lighting/light_wallframes.dm

@@ -20,3 +20,35 @@
 		to_chat(user, span_warning("You cannot place [src] in this area!"))
 		return
 	return TRUE
+
+/obj/item/wallframe/light_fixture/small/attack_self(mob/user)
+	var/turf/local_turf = get_turf(user)
+	var/area/local_area = get_area(user)
+	if(!isturf(user.loc) || !isfloorturf(local_turf))
+		balloon_alert(user, "cannot place here!")
+		return
+	if(local_area.always_unpowered || !local_area.static_lighting)
+		balloon_alert(user, "cannot place in this area!")
+		return
+	for(var/obj/object in local_turf)
+		if(object.density && !(object.obj_flags & IGNORE_DENSITY) || object.obj_flags & BLOCKS_CONSTRUCTION)
+			balloon_alert(user, "something is in the way!")
+			return
+	if(local_turf.underfloor_accessibility < UNDERFLOOR_INTERACTABLE)
+		balloon_alert(user, "remove the floor plating!")
+		return
+	if(locate(/obj/structure/light_construct/floor) in local_turf)
+		balloon_alert(user, "already has a light!")
+		return
+	if(locate(/obj/machinery/light/floor) in local_turf)
+		balloon_alert(user, "already has a light!")
+		return
+
+	playsound(src.loc, 'sound/machines/click.ogg', 75, TRUE)
+	user.visible_message(span_notice("[user.name] attaches [src] to the floor."),
+		span_notice("You attach [src] to the floor."),
+		span_hear("You hear clicking."))
+
+	new /obj/structure/light_construct/floor(local_turf)
+	qdel(src)
+