From 12a82618daabf8eb8b98e9876a76702aad38b81b Mon Sep 17 00:00:00 2001
From: Kyle Spier-Swenson <kyleshome@gmail.com>
Date: Thu, 26 Oct 2017 15:21:00 -0700
Subject: [PATCH] Remove some unneeded null checks in lighting

These weren't needed, and ran thousands of times per second during high lighting activity, and were pretty high up in the line by line profile of lighting for what was basically a noop.
---
 code/modules/lighting/lighting_source.dm | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/code/modules/lighting/lighting_source.dm b/code/modules/lighting/lighting_source.dm
index 178f091fb77..31ddb27b2a7 100644
--- a/code/modules/lighting/lighting_source.dm
+++ b/code/modules/lighting/lighting_source.dm
@@ -271,8 +271,6 @@
 		source_turf.luminosity = Ceiling(light_range)
 		for(T in view(Ceiling(light_range), source_turf))
 			for (thing in T.get_corners(source_turf))
-				if(!thing)
-					continue
 				C = thing
 				corners[C] = 0
 			turfs += T
@@ -294,8 +292,6 @@
 	LAZYINITLIST(effect_str)
 	if (needs_update == LIGHTING_VIS_UPDATE)
 		for (thing in  corners - effect_str) // New corners
-			if(!thing)
-				continue
 			C = thing
 			LAZYADD(C.affecting, src)
 			if (!C.active)
@@ -305,8 +301,6 @@
 	else
 		L = corners - effect_str
 		for (thing in L) // New corners
-			if(!thing)
-				continue
 			C = thing
 			LAZYADD(C.affecting, src)
 			if (!C.active)
@@ -315,8 +309,6 @@
 			APPLY_CORNER(C)
 
 		for (thing in corners - L) // Existing corners
-			if(!thing)
-				continue
 			C = thing
 			if (!C.active)
 				effect_str[C] = 0
@@ -325,8 +317,6 @@
 
 	L = effect_str - corners
 	for (thing in L) // Old, now gone, corners.
-		if(!thing)
-			continue
 		C = thing
 		REMOVE_CORNER(C)
 		LAZYREMOVE(C.affecting, src)