From fced4969805a8b1ddae675127de0b04854c78cea Mon Sep 17 00:00:00 2001
From: Walter0o <Walter0o@users.noreply.github.com>
Date: Sun, 20 Jul 2014 04:21:48 +0200
Subject: [PATCH] fixes simple_animals using FEA instead of ZAS

i can't believe after all this time animals still use FEA instead of ZAS.
this should fix the "random" animal deaths.
---
 .../mob/living/simple_animal/simple_animal.dm | 76 +++++++++----------
 1 file changed, 35 insertions(+), 41 deletions(-)

diff --git a/code/modules/mob/living/simple_animal/simple_animal.dm b/code/modules/mob/living/simple_animal/simple_animal.dm
index 906acdbfb2..0360de52b0 100644
--- a/code/modules/mob/living/simple_animal/simple_animal.dm
+++ b/code/modules/mob/living/simple_animal/simple_animal.dm
@@ -141,48 +141,42 @@
 	//Atmos
 	var/atmos_suitable = 1
 
-	var/atom/A = src.loc
-	if(isturf(A))
-		var/turf/T = A
-		var/areatemp = T.temperature
-		if( abs(areatemp - bodytemperature) > 40 )
-			var/diff = areatemp - bodytemperature
-			diff = diff / 5
-			//world << "changed from [bodytemperature] by [diff] to [bodytemperature + diff]"
-			bodytemperature += diff
+	var/atom/A = src.loc		
 
-		if(istype(T,/turf/simulated))
-			var/turf/simulated/ST = T
-			if(ST.air)
-				var/tox = ST.air.phoron
-				var/oxy = ST.air.oxygen
-				var/n2  = ST.air.nitrogen
-				var/co2 = ST.air.carbon_dioxide
-
-				if(min_oxy)
-					if(oxy < min_oxy)
-						atmos_suitable = 0
-				if(max_oxy)
-					if(oxy > max_oxy)
-						atmos_suitable = 0
-				if(min_tox)
-					if(tox < min_tox)
-						atmos_suitable = 0
-				if(max_tox)
-					if(tox > max_tox)
-						atmos_suitable = 0
-				if(min_n2)
-					if(n2 < min_n2)
-						atmos_suitable = 0
-				if(max_n2)
-					if(n2 > max_n2)
-						atmos_suitable = 0
-				if(min_co2)
-					if(co2 < min_co2)
-						atmos_suitable = 0
-				if(max_co2)
-					if(co2 > max_co2)
-						atmos_suitable = 0
+	if(istype(A,/turf))
+		var/turf/T = A	
+		
+		var/datum/gas_mixture/Environment = T.return_air()
+	
+		if(Environment)
+			
+			if( abs(Environment.temperature - bodytemperature) > 40 )
+				bodytemperature += ((Environment.temperature - bodytemperature) / 5)
+			
+			if(min_oxy)
+				if(Environment.oxygen < min_oxy)
+					atmos_suitable = 0
+			if(max_oxy)
+				if(Environment.oxygen > max_oxy)
+					atmos_suitable = 0
+			if(min_tox)
+				if(Environment.phoron < min_tox)
+					atmos_suitable = 0
+			if(max_tox)
+				if(Environment.phoron > max_tox)
+					atmos_suitable = 0
+			if(min_n2)
+				if(Environment.nitrogen < min_n2)
+					atmos_suitable = 0
+			if(max_n2)
+				if(Environment.nitrogen > max_n2)
+					atmos_suitable = 0
+			if(min_co2)
+				if(Environment.carbon_dioxide < min_co2)
+					atmos_suitable = 0
+			if(max_co2)
+				if(Environment.carbon_dioxide > max_co2)
+					atmos_suitable = 0
 
 	//Atmos effect
 	if(bodytemperature < minbodytemp)