new object-based lighting system

Signed-off-by: Mloc <colmohici@gmail.com>

code/modules/vehicles/vehicle.dm

@@ -11,7 +11,7 @@
 	density = 1
 	anchored = 1
 	animate_movement=1
-	luminosity = 3
+	light_range = 3
 
 	can_buckle = 1
 	buckle_movable = 1
@@ -181,13 +181,13 @@
 	if(powered && cell.charge < charge_use)
 		return 0
 	on = 1
-	luminosity = initial(luminosity)
+	set_light(initial(light_range))
 	update_icon()
 	return 1
 
 /obj/vehicle/proc/turn_off()
 	on = 0
-	luminosity = 0
+	set_light(0)
 	update_icon()
 
 /obj/vehicle/proc/Emag(mob/user as mob)
@@ -367,4 +367,4 @@
 	if(prob(10))
 		new /obj/effect/decal/cleanable/blood/oil(src.loc)
 	spawn(1) healthcheck()
-	return 1
+	return 1