Update CommunityMapLocation

- Fetch trains whose locomotives are turned in addition to what the player may be standing on.
- Add reporting of derailed state and speed.

CommunityMapLocation/Api/Location/LocationEndpoint.cs

@@ -1,5 +1,10 @@
-using DV.HUD;
+using DV.Customization;
+using DV.HUD;
+using DV.Simulation.Cars;
+using DV.Utils;
+using LocoSim.Implementations;
 using System;
+using System.Collections.Generic;
 using System.Linq;
 using System.Net;
 using System.Net.Http;
@@ -20,7 +25,7 @@ namespace CommunityMapLocation.Api.Location
             var reverse = false;
 
             // If the player is in a loco, we want to get the heading of the loco instead of the play
-            if (PlayerManager.Car?.IsLoco == true)
+            if (PlayerManager.Car != null && PlayerManager.Car.IsLoco)
             {
                 rotationTransform = PlayerManager.Car.transform;
 
@@ -36,16 +41,37 @@ namespace CommunityMapLocation.Api.Location
                 rotationTransform = PlayerManager.PlayerCamera.transform;
             }
 
-            var cars = Array.Empty<CarLocationResponse>();
-            if (PlayerManager.Car != null)
-            {
-                cars = PlayerManager.Car.trainset.cars.Select(c => new CarLocationResponse(c)).ToArray();
+            var relevantCars = new Dictionary<TrainCar, CarLocationResponse>();
+            foreach(var carEntry in TrainCarRegistry.Instance.logicCarToTrainCar) {
+                if(IsLocoActive(carEntry.Value)) {
+                    foreach(var trainsetCar in carEntry.Value.trainset.cars) {
+                        if(!relevantCars.ContainsKey(trainsetCar))
+                            relevantCars.Add(trainsetCar, new CarLocationResponse(trainsetCar));
+                        relevantCars[trainsetCar].IsActive = true;
+                    }
+                }
+            }
+            if(PlayerManager.Car != null) {
+                foreach(var car in PlayerManager.Car.trainset.cars) {
+                    if(!relevantCars.ContainsKey(car))
+                        relevantCars.Add(car, new CarLocationResponse(car));
+                    relevantCars[car].IsPlayer = true;
+                }
             }
 
             return new LocationResponse(PlayerManager.PlayerTransform, reverse)
             {
-                Cars = cars
+                Cars = relevantCars.Values.ToArray() ?? Array.Empty<CarLocationResponse>()
             };
         }
+
+        private bool IsLocoActive(TrainCar loco) {
+            if(!loco.IsLoco) return false;
+            if(string.IsNullOrWhiteSpace(loco.Customization?.electronicsFuseID)) return false;
+            if(loco.SimController == null || loco.SimController.simFlow == null | loco.Customization == null) return false;
+            if(loco.SimController.simFlow.TryGetFuse(loco.Customization.electronicsFuseID, out Fuse fuse) == true)
+                return fuse.State;
+            return false;
+        }
     }
 }