fixes huge roundstart bugs

code/controllers/subsystem/air.dm

@@ -181,13 +181,17 @@ var/datum/subsystem/air/SSair
 
 	var/list/turfs_to_init = block(locate(1, 1, z_start), locate(world.maxx, world.maxy, z_finish))
 
-	for(var/turf/t in turfs_to_init)
+	for(var/thing in turfs_to_init)
+		var/turf/t = thing
 		t.CalculateAdjacentTurfs()
 		active_turfs -= t
 
 		if(t.blocks_air)
 			continue
 
+		if(istype(t, /turf/open/space))
+			continue //don't need to initialize these; just slows down roundstart without any real benefit
+
 		var/turf/open/T = t
 
 		T.excited = 0
@@ -200,7 +204,7 @@ var/datum/subsystem/air/SSair
 			var/is_active = T.air.compare(enemy_air)
 
 			if(is_active)
-				testing("Active turf found. Return value of compare(): [is_active]")
+				//testing("Active turf found. Return value of compare(): [is_active]")
 				T.excited = 1
 				active_turfs |= T
 				break

code/game/turfs/space/space.dm

@@ -21,12 +21,14 @@
 	return QDEL_HINT_LETMELIVE
 
 /turf/open/space/proc/update_starlight()
-	if(config)
-		if(config.starlight)
-			for(var/turf/T in RANGE_TURFS(1,src)) //RANGE_TURFS is in code\__HELPERS\game.dm
-				SetLuminosity(4,1)
-				return
-			SetLuminosity(0)
+	if(config.starlight)
+		for(var/t in RANGE_TURFS(1,src)) //RANGE_TURFS is in code\__HELPERS\game.dm
+			if(istype(t, /turf/open/space))
+				//let's NOT update this that much pls
+				continue
+			SetLuminosity(4,1)
+			return
+		SetLuminosity(0)
 
 /turf/open/space/attack_paw(mob/user)
 	return src.attack_hand(user)

code/game/turfs/turf.dm

@@ -132,9 +132,6 @@
 	SSair.remove_from_active(src)
 
 	var/turf/W = new path(src)
-	if(istype(W, /turf))
-		W:Assimilate_Air()
-		W.RemoveLattice()
 	W.AfterChange()
 	return W
 

code/modules/atmospherics/gasmixtures/gas_mixture.dm

@@ -402,9 +402,9 @@ var/list/gaslist_cache = null
 	var/global/regex/R_gas_id
 	var/global/regex/R_gas_value
 	if(!R_gas_id)
-		R_gas_id = regex(".+?(?=\\=)") //matches all characters before equal sign
+		R_gas_id = regex("(.+?)(?=\\=)") //matches all characters before equal sign
 	if(!R_gas_value)
-		R_gas_value = regex("(?<=\\=).*") //matches all characters after equal sign
+		R_gas_value = regex("(?<=\\=)(.*)") //matches all characters after equal sign
 
 	var/list/values = splittext(gas_string, ";")
 	var/list/gases = list()
@@ -412,7 +412,9 @@ var/list/gaslist_cache = null
 	while(values.len)
 		var/value = values[1]
 		values.Cut(1,2)
-		gases[R_gas_id.Find(value)] = R_gas_value.Find(value)
+		R_gas_id.Find(value)
+		R_gas_value.Find(value)
+		gases[R_gas_id.group[1]] = text2num(R_gas_value.group[1])
 
 	//deal with the specific case of temperature
 	if("TEMP" in gases)
@@ -420,8 +422,9 @@ var/list/gaslist_cache = null
 		gases -= "TEMP"
 
 	var/list/cached_gases = src.gases
-	assert_gases(arglist(gases))
 	cached_gases &= gases
+	for(var/id in gases-cached_gases)
+		add_gas(id) //add_gases() causes a runtime due to the nature of arglist()
 	for(var/id in gases)
 		cached_gases[id][MOLES] = gases[id]
 

code/modules/lighting/lighting_system.dm

@@ -312,9 +312,8 @@
 		redraw_lighting(1)
 
 /turf/open/space/init_lighting()
-	. = ..()
-	if(config.starlight)
-		update_starlight()
+	..()
+	update_starlight()
 
 /turf/proc/redraw_lighting(instantly = 0)
 	if(lighting_object)