Update carbon.dm

code/modules/mob/living/carbon/carbon.dm

@@ -585,6 +585,9 @@
 		sight |= E.sight_flags
 		if(!isnull(E.lighting_alpha))
 			lighting_alpha = E.lighting_alpha
+		if(HAS_TRAIT(src, TRAIT_NIGHT_VISION))
+			lighting_alpha = min(LIGHTING_PLANE_ALPHA_NV_TRAIT, lighting_alpha)
+			see_in_dark = max(NIGHT_VISION_DARKSIGHT_RANGE, see_in_dark)
 
 	if(client.eye && client.eye != src)
 		var/atom/A = client.eye
@@ -960,4 +963,4 @@
 /mob/living/carbon/transfer_ckey(mob/new_mob, send_signal = TRUE)
 	if(combatmode)
 		toggle_combat_mode(TRUE, TRUE)
-	return ..()
+	return ..()