made minor improvements

cybersyn/changelog.txt

@@ -11,6 +11,7 @@ Date: 2023-10-10
     - Stations with provider item thresholds can no longer generate empty train orders - contributed by svr8450
     - Added missing loader entity type to the automatic allow-list - contributed by gillett-hernandez
     - Fixed a case where combinator changes not being applied for depots and refuelers - contributed by jagoly
+    - Fixed provide/request orders for the same item getting generated simultaneously - contributed by jagoly
     - Fixed a crash when opening the manager when adding cybersyn to an existing save - contributed by Mjonir
     - Fixed a crash when enabling the manager on an existing save - contributed by freyacodes
   Translation:

cybersyn/scripts/central-planning.lua

@@ -287,6 +287,12 @@ local function tick_dispatch(map_data, mod_settings)
 				goto continue
 			end
 
+			--don't request when already providing
+			local item_deliveries = station.deliveries[item_name]
+			if item_deliveries and item_deliveries < 0 then
+				goto continue
+			end
+
 			local threshold = station.r_threshold
 			local prior = station.priority
 			local item_threshold = station.item_thresholds and station.item_thresholds[item_name] or nil
@@ -300,16 +306,11 @@ local function tick_dispatch(map_data, mod_settings)
 				goto continue
 			end
 
+			--prioritize by last delivery time if priorities are equal
 			if prior == best_r_prior and station.last_delivery_tick > best_timestamp then
 				goto continue
 			end
 
-			--don't request when already providing
-			local item_deliveries = station.deliveries[item_name]
-			if item_deliveries and item_deliveries < 0 then
-				goto continue
-			end
-
 			r_station_i = i
 			r_threshold = threshold
 			best_r_prior = prior
@@ -362,6 +363,12 @@ local function tick_dispatch(map_data, mod_settings)
 				goto p_continue
 			end
 
+			--don't provide when already requesting
+			item_deliveries = p_station.deliveries[item_name]
+			if item_deliveries and item_deliveries > 0 then
+				goto p_continue
+			end
+
 			p_flag = get_network_mask(p_station, network_name)
 			r_flag = get_network_mask(r_station, network_name)
 			netand = band(p_flag, r_flag)
@@ -489,12 +496,6 @@ local function tick_dispatch(map_data, mod_settings)
 				goto p_continue
 			end
 
-			--don't provide when already requesting
-			item_deliveries = p_station.deliveries[item_name]
-			if item_deliveries and item_deliveries > 0 then
-				goto p_continue
-			end
-
 			p_station_i = j
 			best_train_id = best_p_train_id
 			best_p_prior = p_prior
@@ -510,6 +511,7 @@ local function tick_dispatch(map_data, mod_settings)
 			create_delivery(map_data, r_station_id, p_station_id, best_train_id, manifest)
 			return false
 		else
+			if closest_to_correct_p_station then
 				if correctness == 1 then
 					send_alert_missing_train(r_station.entity_stop, closest_to_correct_p_station.entity_stop)
 				elseif correctness == 2 then
@@ -519,6 +521,7 @@ local function tick_dispatch(map_data, mod_settings)
 				elseif correctness == 4 then
 					send_alert_no_train_matches_p_layout(r_station.entity_stop, closest_to_correct_p_station.entity_stop)
 				end
+			end
 			if band(r_station.display_state, 2) == 0 then
 				r_station.display_state = r_station.display_state + 2
 				update_display(map_data, r_station)

cybersyn/scripts/global.lua

@@ -131,6 +131,7 @@
 ---@field public react_to_train_early_to_depot boolean --interface setting
 ---@field public enable_manager boolean
 ---@field public manager_ups double
+---@field public manager_enabled boolean
 
 --if this is uncommented it means there are migrations to write
 

cybersyn/scripts/layout.lua

@@ -215,7 +215,7 @@ function set_p_wagon_combs(map_data, station, train)
 		if carriage.type == "cargo-wagon" then
 			local inv = carriage.get_inventory(defines.inventory.cargo_wagon)
 			if inv then
-				---@type ConstantCombinatorParameters
+				---@type ConstantCombinatorParameters[]
 				local signals = {}
 
 				local inv_filter_i = 1

cybersyn/scripts/main.lua

@@ -115,7 +115,7 @@ end
 ---@param map_data MapData
 ---@param stop LuaEntity
 ---@param comb1 LuaEntity
----@param comb2 LuaEntity
+---@param comb2 LuaEntity?
 local function on_station_built(map_data, stop, comb1, comb2)
 	--NOTE: only place where new Station
 	local station = {
@@ -412,7 +412,7 @@ function combinator_update(map_data, comb, reset_display)
 	local params = control.parameters
 	local old_params = map_data.to_comb_params[unit_number]
 	local has_changed = false
-	local type, id, entity = nil, nil, nil
+	local type, id, entity = nil, 0, nil
 
 	local op = params.operation
 	local is_mode_primary_io = op == MODE_PRIMARY_IO