Fixed nuke shuttle being a swirly vortex of death.

This bug was actually in legacy ShareSpace code,
I'm surprised it wasn't noticeable in the old ZAS.

code/ZAS/ConnectionGroup.dm

@@ -190,7 +190,7 @@ Class Procs:
 	A.edges.Add(src)
 	air = B.return_air()
 	//id = 52*A.id
-	//world << "New edge from [A.id] to [B]."
+	//world << "New edge from [A] to [B]."
 
 /connection_edge/unsimulated/add_connection(connection/c)
 	. = ..()
@@ -215,7 +215,7 @@ Class Procs:
 		return
 	//world << "[id]: Tick [air_master.current_cycle]: To [B]!"
 	//A.air.mimic(B, coefficient)
-	ShareSpace(A.air,air)
+	ShareSpace(A.air,air,dbg_out)
 	air_master.mark_zone_update(A)
 
 	var/differential = A.air.return_pressure() - air.return_pressure()
@@ -333,6 +333,9 @@ proc/ShareSpace(datum/gas_mixture/A, list/unsimulated_tiles, dbg_output)
 		share_size = max(1, max(size + 3, 1) + avg_unsim.group_multiplier)
 		tileslen = avg_unsim.group_multiplier
 
+		if(dbg_output)
+			world << "O2: [unsim_oxygen] N2: [unsim_nitrogen] Size: [share_size] Tiles: [tileslen]"
+
 	else if(istype(unsimulated_tiles, /list))
 		if(!unsimulated_tiles.len)
 			return 0
@@ -376,10 +379,10 @@ proc/ShareSpace(datum/gas_mixture/A, list/unsimulated_tiles, dbg_output)
 
 		full_heat_capacity = A.heat_capacity() * size
 
-		oxy_avg = (full_oxy + unsim_oxygen) / (size + share_size)
+		oxy_avg = (full_oxy + unsim_oxygen*share_size) / (size + share_size)
-		nit_avg = (full_nitro + unsim_nitrogen) / (size + share_size)
+		nit_avg = (full_nitro + unsim_nitrogen*share_size) / (size + share_size)
-		co2_avg = (full_co2 + unsim_co2) / (size + share_size)
+		co2_avg = (full_co2 + unsim_co2*share_size) / (size + share_size)
-		plasma_avg = (full_plasma + unsim_plasma) / (size + share_size)
+		plasma_avg = (full_plasma + unsim_plasma*share_size) / (size + share_size)
 
 		temp_avg = 0
 
@@ -389,6 +392,10 @@ proc/ShareSpace(datum/gas_mixture/A, list/unsimulated_tiles, dbg_output)
 	if(sharing_lookup_table.len >= tileslen) //6 or more interconnecting tiles will max at 42% of air moved per tick.
 		ratio = sharing_lookup_table[tileslen]
 
+	if(dbg_output)
+		world << "Ratio: [ratio]"
+		world << "Avg O2: [oxy_avg] N2: [nit_avg]"
+
 	A.oxygen = max(0, (A.oxygen - oxy_avg) * (1 - ratio) + oxy_avg )
 	A.nitrogen = max(0, (A.nitrogen - nit_avg) * (1 - ratio) + nit_avg )
 	A.carbon_dioxide = max(0, (A.carbon_dioxide - co2_avg) * (1 - ratio) + co2_avg )
@@ -402,6 +409,8 @@ proc/ShareSpace(datum/gas_mixture/A, list/unsimulated_tiles, dbg_output)
 
 	A.update_values()
 
+	if(dbg_output) world << "Result: [abs(old_pressure - A.return_pressure())] kPa"
+
 	return abs(old_pressure - A.return_pressure())
 
 

code/ZAS/Debug.dm

@@ -7,6 +7,8 @@ var/image/zone_blocked = image('icons/Testing/Zone.dmi', icon_state = "zoneblock
 var/image/blocked = image('icons/Testing/Zone.dmi', icon_state = "fullblock")
 var/image/mark = image('icons/Testing/Zone.dmi', icon_state = "mark")
 
+/connection_edge/var/dbg_out = 0
+
 /turf/var/tmp/dbg_img
 /turf/proc/dbg(image/img, d = 0)
 	if(d > 0) img.dir = d

code/ZAS/Diagnostic.dm

@@ -17,6 +17,9 @@ client/proc/Zone_Info(turf/T as null|turf)
 			T:zone:dbg_data(src)
 		else
 			mob << "No zone here."
+			var/datum/gas_mixture/mix = T.return_air()
+			mob << "[mix.return_pressure()] kPa [mix.temperature]C"
+			mob << "O2: [mix.oxygen] N2: [mix.nitrogen] CO2: [mix.carbon_dioxide] TX: [mix.toxins]"
 	else
 		if(zone_debug_images)
 			for(var/zone in  zone_debug_images)

code/ZAS/Zone.dm

@@ -145,6 +145,7 @@ Class Procs:
 		else
 			space_edges++
 			space_coefficient += E.coefficient
+			M << "[E:air:return_pressure()]kPa"
 
 	M << "Zone Edges: [zone_edges]"
 	M << "Space Edges: [space_edges] ([space_coefficient] connections)"