Update version to 0.1.20 and enhance train name retrieval in statistics

info.json

@@ -1,6 +1,6 @@
 {
   "name": "factorio-metrics-exporter",
-  "version": "0.1.19",
+  "version": "0.1.20",
   "title": "Prometheus Metrics Exporter",
   "author": "Jan Grießhaber",
   "contact": "jan@griesshaber.systems",

train-stats.lua

@@ -5,13 +5,25 @@ function ScanTrains()
     end
 end
 
+---comment Get the first locomotive in the front, if non, in the back, if none empty string
+---@param train LuaTrain
+function GetTrainName(train)
+    if train.locomotives.front_movers[1] then
+        return train.locomotives.front_movers[1].backer_name
+    else if train.locomotives.back_movers[1] then
+        return train.locomotives.back_movers[1].backer_name
+        end
+    end
+    return ""
+end
+
 function GetTrainPlayerKills()
     local trainKills = {}
     trainKills[#trainKills+1] = "---train-player-kills---"
     ---@type LuaTrain
     for _, train in pairs(storage.trains ) do
         for killedPlayerID,killedPlayerCount in pairs(train.killed_players) do
-            trainKills[#trainKills+1] = ("%d%s%s%d"):format(train.id,killedPlayerID,game.players[killedPlayerID].name,killedPlayerCount)
+            trainKills[#trainKills+1] = ("%s:%s:%s:%s:%d"):format(train.id,GetTrainName(train),killedPlayerID,game.players[killedPlayerID].name,killedPlayerCount)
         end
     end
     return table.concat(trainKills,"\n")
@@ -23,7 +35,7 @@ function GetTrainTotalKills()
     trainKills[#trainKills+1] = "---train-total-kills---"
     ---@type LuaTrain
     for _, train in pairs(storage.trains) do
-        trainKills[#trainKills+1] = ("%d:%d"):format(train.id,train.kill_count)
+        trainKills[#trainKills+1] = ("%s:%s:%d"):format(train.id,GetTrainName(train),train.kill_count)
     end
     return table.concat(trainKills,"\n")
 end
@@ -35,13 +47,13 @@ function GetTrainStates()
     local trainsManual = 0
     for _, train in pairs(storage.trains) do
         if train.state == defines.train_state.wait_station
-        or train.state ==defines.train_state.destination_full
+        or train.state == defines.train_state.destination_full
         or train.state == defines.train_state.no_schedule
         then trainsWaiting = trainsWaiting + 1 end
 
         if train.state == defines.train_state.on_the_path
-        or train.state ==defines.train_state.arrive_signal
+        or train.state == defines.train_state.arrive_signal
-        or train.state ==defines.train_state.wait_signal
+        or train.state == defines.train_state.wait_signal
         then trainsDriving = trainsDriving + 1 end
 
         if train.state == defines.train_state.manual_control 
@@ -140,15 +152,13 @@ function onTrainStateChange(event)
         
 
         if stat.currentInventory and stat.lastInventory then
-
         --Get Total Cargo
             for key, value in pairs(inventoryDiff(stat.lastInventory,stat.currentInventory)) do
             stat.totalCargoCount = (stat.totalCargoCount or 0) + value.delta
             end
+        end
 
         storage.trainStats[trainID] = stat
-
-        end
     end
     --log("inEvent")
 end
@@ -157,7 +167,7 @@ function GetTrainStatistics()
     local trainParts = {}
     trainParts[#trainParts+1] = "---train-total-statistics---\n"
     for trainID, stat in pairs(storage.trainStats) do
-        trainParts[#trainParts+1] = ("%d:%d"):format(trainID,stat.totalCargoCount)
+        trainParts[#trainParts+1] = ("%d:%s:%d"):format(trainID,GetTrainName(storage.trains[trainID]),stat.totalCargoCount)
     end
     return table.concat(trainParts,"\n")
 end