Centcomm is on Z1

code/modules/events/brand_intelligence.dm

@@ -27,7 +27,7 @@
 
 /datum/round_event/brand_intelligence/start()
 	for(var/obj/machinery/vending/V in GLOB.machines)
-		if(V.z != 1)
+		if(V.z != ZLEVEL_STATION)
 			continue
 		vendingMachines.Add(V)
 	if(!vendingMachines.len)

code/modules/events/disease_outbreak.dm

@@ -25,7 +25,7 @@
 		var/turf/T = get_turf(H)
 		if(!T)
 			continue
-		if(T.z != 1)
+		if(T.z != ZLEVEL_STATION)
 			continue
 		var/foundAlready = 0	// don't infect someone that already has the virus
 		for(var/datum/disease/D in H.viruses)

code/modules/events/holiday/xmas.dm

@@ -25,7 +25,7 @@
 
 /datum/round_event/presents/start()
 	for(var/obj/structure/flora/tree/pine/xmas in world)
-		if(xmas.z != 1)
+		if(xmas.z != ZLEVEL_STATION)
 			continue
 		for(var/turf/open/floor/T in orange(1,xmas))
 			for(var/i=1,i<=rand(1,5),i++)

code/modules/events/wizard/curseditems.dm

@@ -38,7 +38,7 @@
 			ruins_wizard_loadout = 1
 
 	for(var/mob/living/carbon/human/H in GLOB.living_mob_list)
-		if(ruins_spaceworthiness && (H.z != 1 || isspaceturf(H.loc) || isplasmaman(H)))
+		if(ruins_spaceworthiness && (H.z != ZLEVEL_STATION || isspaceturf(H.loc) || isplasmaman(H)))
 			continue	//#savetheminers
 		if(ruins_wizard_loadout && H.mind && ((H.mind in SSticker.mode.wizards) || (H.mind in SSticker.mode.apprentices)))
 			continue

code/modules/events/wizard/shuffle.dm

@@ -13,7 +13,7 @@
 	var/list/mobs	 = list()
 
 	for(var/mob/living/carbon/human/H in GLOB.living_mob_list)
-		if(H.z != 1)
+		if(H.z != ZLEVEL_STATION)
 			continue //lets not try to strand people in space or stuck in the wizards den
 		moblocs += H.loc
 		mobs += H