Updates all get_base_turf usages to get_base_turf_by_area.

This means that instead of the base turf being defined by the z-level, it's now defined by area and defaulted by z-level.

Updates all "shuttle" and "solar" areas to have a base_turf of space.
Updates docking arms 1, 2, and 3 on the main asteroid level to have a base_turf of space.

Other z-levels may still need updating.

This change means that all actions which destroy or dismantle a tile - for example bombs, a singularity, a shuttle leaving, or deconstruction - now leave these new areas as space not asteroid. Future mapping efforts may need to take this into account.

code/_helpers/unsorted.dm

@@ -962,7 +962,7 @@ proc/DuplicateObject(obj/original, var/perfectcopy = 0 , var/sameloc = 0)
 					var/old_underlays = T.underlays.Copy()
 
 					if(platingRequired)
-						if(istype(B, get_base_turf(B.z)))
+						if(istype(B, get_base_turf_by_area(B)))
 							continue moving
 
 					var/turf/X = B

code/game/area/Space Station 13 areas.dm

@@ -147,6 +147,7 @@ area/space/atmosalert()
 	requires_power = 0
 	flags = RAD_SHIELDED
 	sound_env = SMALL_ENCLOSED
+	base_turf = /turf/space
 
 /area/shuttle/arrival
 	name = "\improper Arrival Shuttle"
@@ -1025,14 +1026,17 @@ area/space/atmosalert()
 /area/hallway/secondary/entry/D1
 	name = "\improper Shuttle Dock Hallway - Dock One"
 	icon_state = "entry_D1"
+	base_turf = /turf/space
 
 /area/hallway/secondary/entry/D2
 	name = "\improper Shuttle Dock Hallway - Dock Two"
 	icon_state = "entry_D2"
+	base_turf = /turf/space
 
 /area/hallway/secondary/entry/D3
 	name = "\improper Shuttle Dock Hallway - Dock Three"
 	icon_state = "entry_D3"
+	base_turf = /turf/space
 
 /area/hallway/secondary/entry/D4
 	name = "\improper Shuttle Dock Hallway - Dock Four"
@@ -1603,6 +1607,7 @@ area/space/atmosalert()
 	requires_power = 1
 	always_unpowered = 1
 	lighting_use_dynamic = 0
+	base_turf = /turf/space
 
 	auxport
 		name = "\improper Fore Port Solar Array"

code/game/gamemodes/cult/narsie.dm

@@ -223,9 +223,9 @@ var/global/list/narsie_list = list()
 				consume(AM2)
 				continue
 
-		if (dist <= consume_range && !istype(A, get_base_turf(A.z)))
+		if (dist <= consume_range && !istype(A, get_base_turf_by_area(A)))
 			var/turf/T2 = A
-			T2.ChangeTurf(get_base_turf(A.z))
+			T2.ChangeTurf(get_base_turf_by_area(A))
 
 /obj/singularity/narsie/consume(const/atom/A) //This one is for the small ones.
 	if(!(A.singuloCanEat()))
@@ -265,9 +265,9 @@ var/global/list/narsie_list = list()
 				spawn (0)
 					AM2.singularity_pull(src, src.current_size)
 
-		if (dist <= consume_range && !istype(A, get_base_turf(A.z)))
+		if (dist <= consume_range && !istype(A, get_base_turf_by_area(A)))
 			var/turf/T2 = A
-			T2.ChangeTurf(get_base_turf(A.z))
+			T2.ChangeTurf(get_base_turf_by_area(A))
 
 /obj/singularity/narsie/ex_act(severity) //No throwing bombs at it either. --NEO
 	return

code/game/gamemodes/events/black_hole.dm

@@ -24,7 +24,7 @@
 			qdel(M)
 		for(var/obj/O in orange(1,src))
 			qdel(O)
-		var/base_turf = get_base_turf(src.z)
+		var/base_turf = get_base_turf_by_area(src)
 		for(var/turf/simulated/ST in orange(1,src))
 			if(ST.type == base_turf)
 				continue
@@ -87,6 +87,6 @@
 	//Destroying the turf
 	if( T && istype(T,/turf/simulated) && prob(turf_removal_chance) )
 		var/turf/simulated/ST = T
-		var/base_turf = get_base_turf(src.z)
+		var/base_turf = get_base_turf_by_area(src)
 		if(ST.type != base_turf)
 			ST.ChangeTurf(base_turf)

code/game/mecha/equipment/tools/tools.dm

@@ -284,7 +284,7 @@
 					if(do_after_cooldown(target))
 						if(disabled) return
 						chassis.spark_system.start()
-						target:ChangeTurf(get_base_turf(target.z))
+						target:ChangeTurf(get_base_turf_by_area(target))
 						playsound(target, 'sound/items/Deconstruct.ogg', 50, 1)
 						chassis.use_power(energy_drain)
 				else if (istype(target, /obj/machinery/door/airlock))
@@ -297,7 +297,7 @@
 						playsound(target, 'sound/items/Deconstruct.ogg', 50, 1)
 						chassis.use_power(energy_drain)
 			if(1)
-				if(istype(target, /turf/space) || istype(target,get_base_turf(target.z)))
+				if(istype(target, /turf/space) || istype(target,get_base_turf_by_area(target)))
 					occupant_message("Building Floor...")
 					set_ready_state(0)
 					if(do_after_cooldown(target))

code/game/objects/items/weapons/RCD.dm

@@ -100,7 +100,7 @@
 		build_delay = 50
 		build_type = "airlock"
 		build_other = /obj/machinery/door/airlock
-	else if(!deconstruct && (istype(T,/turf/space) || istype(T,get_base_turf(T.z))))
+	else if(!deconstruct && (istype(T,/turf/space) || istype(T,get_base_turf_by_area(T))))
 		build_cost =  1
 		build_type =  "floor"
 		build_turf =  /turf/simulated/floor/airless

code/game/turfs/simulated/floor_acts.dm

@@ -2,14 +2,14 @@
 	//set src in oview(1)
 	switch(severity)
 		if(1.0)
-			src.ChangeTurf(get_base_turf(src.z))
+			src.ChangeTurf(get_base_turf_by_area(src))
 		if(2.0)
 			switch(pick(40;1,40;2,3))
 				if (1)
 					if(prob(33)) new /obj/item/stack/material/steel(src)
 					src.ReplaceWithLattice()
 				if(2)
-					src.ChangeTurf(get_base_turf(src.z))
+					src.ChangeTurf(get_base_turf_by_area(src))
 				if(3)
 					if(prob(33)) new /obj/item/stack/material/steel(src)
 					if(prob(80))

code/game/turfs/turf_changing.dm

@@ -1,5 +1,5 @@
 /turf/proc/ReplaceWithLattice()
-	src.ChangeTurf(get_base_turf(src.z))
+	src.ChangeTurf(get_base_turf_by_area(src))
 	spawn()
 		new /obj/structure/lattice( locate(src.x, src.y, src.z) )
 

code/modules/power/singularity/act.dm

@@ -107,7 +107,7 @@
 				continue
 			if(O.invisibility == 101)
 				O.singularity_act(src, current_size)
-	ChangeTurf(get_base_turf(src.z))
+	ChangeTurf(get_base_turf_by_area(src))
 	return 2
 
 /turf/simulated/wall/singularity_pull(S, current_size)