minor improvements

cybersyn/changelog.txt

@@ -9,3 +9,9 @@ Date: 2022-11-10
   Features:
     - Removed provide-threshold
     - Added ability to specify station type on a cybernetic combinator
+
+---------------------------------------------------------------------------------------------------
+Version: 0.2.1
+Date: 2022-11-11
+  Features:
+    - Minor bugfixes and performance improvements

cybersyn/scripts/central-planning.lua

@@ -257,27 +257,32 @@ local function tick_poll_station(map_data, mod_settings)
 	local all_p_stations = map_data.economy.all_p_stations
 	local all_names = map_data.economy.all_names
 
-	while true do
+	local station_id
+	local station
+	while true do--choose a station
 		tick_data.i = (tick_data.i or 0) + 1
 		if tick_data.i > #map_data.all_station_ids then
 			tick_data.i = nil
 			map_data.tick_state = STATE_DISPATCH
 			return true
 		end
-		local station_id = map_data.all_station_ids[tick_data.i]
+		station_id = map_data.all_station_ids[tick_data.i]
-		local station = map_data.stations[station_id]
+		station = map_data.stations[station_id]
-		if station == nil then
+		if station then
-			table_remove(map_data.all_station_ids, tick_data.i)
-			tick_data.i = tick_data.i - 1
-			return false
-		end
 			if station.display_update then
 				update_combinator_display(station.entity_comb1, station.display_failed_request)
 				station.display_update = station.display_failed_request
 				station.display_failed_request = nil
 			end
-
 			if station.network_name and station.deliveries_total < station.entity_stop.trains_limit then
+				break
+			end
+		else
+			--lazy delete removed stations
+			table_remove(map_data.all_station_ids, tick_data.i)
+			tick_data.i = tick_data.i - 1
+		end
+	end
 	station.r_threshold = mod_settings.r_threshold
 	station.priority = 0
 	station.locked_slots = 0
@@ -342,8 +347,6 @@ local function tick_poll_station(map_data, mod_settings)
 		end
 	end
 	return false
-		end
-	end
 end
 ---@param map_data MapData
 ---@param mod_settings CybersynModSettings