Add end of loco being lead of an AI train

Author: Csantucci

Source/Orts.Simulation/Common/Events.cs

@@ -34,6 +34,7 @@ public enum Event
         PlayerTrainHelperLoco,
         PlayerTrainLeadLoco,
         StaticTrainLoco,
+        EndAITrainLeadLoco,
         BatterySwitchOff,
         BatterySwitchOn,
         BatterySwitchCommandOff,
@@ -576,6 +577,7 @@ public static Event From(Source source, int eventID)
                         case 334: return Event.AITrainApproachingStation;
                         case 335: return Event.AITrainLeavingStation;
                         case 336: return Event.StaticTrainLoco;
+                        case 337: return Event.EndAITrainLeadLoco;
 
                         default: return 0;
                     }

Source/Orts.Simulation/Simulation/Physics/Train.cs

@@ -13849,7 +13849,11 @@ public void RedefineAITriggers()
                         car.SignalEvent(Event.AITrainLeadLoco);
                         leadFound = true;
                     }
-                    else car.SignalEvent(Event.AITrainHelperLoco);
+                    else
+                    {
+                        car.SignalEvent(Event.AITrainHelperLoco);
+                        car.SignalEvent(Event.EndAITrainLeadLoco);
+                    }
                 }
             }
         }
@@ -13863,9 +13867,13 @@ public void RedefinePlayerTrainTriggers()
             Simulator.PlayerLocomotive.SignalEvent(Event.PlayerTrainLeadLoco);
             foreach (var car in Cars)
             {
-                if (car is MSTSLocomotive && car != Simulator.PlayerLocomotive)
+                if (car is MSTSLocomotive)
                 {
-                    car.SignalEvent(Event.PlayerTrainHelperLoco);
+                    if (car != Simulator.PlayerLocomotive)
+                    {
+                        car.SignalEvent(Event.PlayerTrainHelperLoco);
+                    }
+                    car.SignalEvent(Event.EndAITrainLeadLoco);
                 }
             }
         }
@@ -13879,7 +13887,10 @@ public void RedefineStaticTrainTriggers()
             foreach (var car in Cars)
             {
                 if (car is MSTSLocomotive)
+                {
                     car.SignalEvent(Event.StaticTrainLoco);
+                    car.SignalEvent(Event.EndAITrainLeadLoco);
+                }
             }
         }