Makes some things that rely on atmos adjacency more sane/faster. (#54096)

* Replaces some CANATMOSPASS calls with a new define that checks if the turfs are in each others atmos adjacent list, as that's the same info that they want.

code/game/objects/effects/glowshroom.dm

@@ -110,6 +110,10 @@
 		return
 
 	var/turf/ownturf = get_turf(src)
+	if(!TURF_SHARES(ownturf)) //If we are in a 1x1 room
+		addtimer(CALLBACK(src, .proc/Spread), delay_spread, TIMER_UNIQUE|TIMER_NO_HASH_WAIT)
+		return //Deal with it not now
+
 	var/shrooms_planted = 0
 	var/list/possibleLocs = list()
 	//Lets collect a list of possible viewable turfs BEFORE we iterate for yield so we don't call view multiple
@@ -118,7 +122,7 @@
 	for(var/turf/open/floor/earth in view(3,src))
 		if(is_type_in_typecache(earth, blacklisted_glowshroom_turfs))
 			continue
-		if(!ownturf.CanAtmosPass(earth))
+		if(!TURF_SHARES(earth))
 			continue
 		possibleLocs += earth
 

code/game/objects/effects/portals.dm

@@ -125,12 +125,14 @@
 
 /obj/effect/portal/proc/unlink_atmos()
 	if(istype(atmos_source))
-		if(istype(atmos_destination) && !atmos_source.Adjacent(atmos_destination) && !CANATMOSPASS(atmos_destination, atmos_source))
+		if(istype(atmos_destination))
 			LAZYREMOVE(atmos_source.atmos_adjacent_turfs, atmos_destination)
+			atmos_source.ImmediateCalculateAdjacentTurfs() //Just in case they were next to each other
 		atmos_source = null
 	if(istype(atmos_destination))
-		if(istype(atmos_source) && !atmos_destination.Adjacent(atmos_source) && !CANATMOSPASS(atmos_source, atmos_destination))
+		if(istype(atmos_source))
 			LAZYREMOVE(atmos_destination.atmos_adjacent_turfs, atmos_source)
+			atmos_destination.ImmediateCalculateAdjacentTurfs()
 		atmos_destination = null
 
 /obj/effect/portal/Destroy()

code/game/objects/items/RCD.dm

@@ -832,7 +832,7 @@ RLD
 						for(var/direction in GLOB.cardinals)
 							var/turf/C = get_step(W, direction)
 							var/list/dupes = checkdupes(C)
-							if(start.CanAtmosPass(C) && !dupes.len)
+							if((isspaceturf(C) || TURF_SHARES(C)) && !dupes.len)
 								candidates += C
 						if(!candidates.len)
 							to_chat(user, "<span class='warning'>Valid target not found...</span>")

code/game/objects/items/melee/misc.dm

@@ -524,7 +524,6 @@
 	T.visible_message("<span class='danger'>[T] smacks into [src] and rapidly flashes to ash.</span>",\
 	"<span class='hear'>You hear a loud crack as you are washed with a wave of heat.</span>")
 	shard.Consume()
-	CALCULATE_ADJACENT_TURFS(T)
 
 /obj/item/melee/supermatter_sword/add_blood_DNA(list/blood_dna)
 	return FALSE