Automatic merge of T1.6-rc2-41-gacd714487 and 10 pull requests

- Pull request #1104 at 03ccdc6: Handle simple adhesion within the axle module
- Pull request #1086 at e10390b: Add Settings Exporter tool (copy settings to INI, etc)
- Pull request #1091 at 2391bc0: Automatic speed control
- Pull request #1110 at 387388e: Fix Activity Runner persists after loading exception
- Pull request #1114 at 9a4a873: Fix color of DB in DrivingInfo when in setup with DPU fenced. (r1.6)
- Pull request #1115 at 270f22f: Do not activate ETS switch if no suitable cars are attached
- Pull request #1116 at 721d118: Fix Potential Hang in AnimatedPart.SetFrameWrap
- Pull request #1118 at f1e0f35: Fix DPMode when last remote is moved to front. (r1.6)
- Pull request #1082 at 5845a1a: Allow variable water level in glass gauge
- Pull request #1081 at 689494b: Brake cuts power unification

Author: openrails-bot

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

@@ -1628,6 +1628,7 @@ public void DPMoveToFront()
             if (LeadLocomotive == null || (LeadLocomotive as MSTSLocomotive).DPDynamicBrakeController == null)
                 return;
             int idToMove = -1;
+            bool stillHasRemotes = false;
             for (var i = 0; i < Cars.Count; i++)
             {
                 if (!(Cars[i] is MSTSLocomotive))
@@ -1641,7 +1642,12 @@ public void DPMoveToFront()
                     Cars[i].RemoteControlGroup = 0;
                 else if (idToMove > -1 && Cars[i].RemoteControlGroup == 0)
                     Cars[i].RemoteControlGroup = 1;
+
+                if (Cars[i].RemoteControlGroup == 1)
+                    stillHasRemotes = true;
             }
+            if (!stillHasRemotes)
+                DPMode = 0;
         }
 
         /// <summary>
@@ -1656,6 +1662,7 @@ public void DPMoveToBack()
             var dpDynamicBrakeCurrentNotch = MathHelper.Clamp((LeadLocomotive as MSTSLocomotive).DPDynamicBrakeController.GetNotch(dpDynamicBrakePercent/100), 0, 8);
             var dpThrottleCurrentNotch = (LeadLocomotive as MSTSLocomotive).ThrottleController.CurrentNotch;
             int idToMove = -1;
+            bool alreadyHasRemotes = false;
             int idLead = LeadLocomotive != null ? (Cars[LeadLocomotiveIndex] as MSTSLocomotive).DPUnitID : -1;
             for (var i = Cars.Count - 1; i >= 0; i--)
             {
@@ -1667,6 +1674,7 @@ public void DPMoveToBack()
                     dpThrottlePercent = DPThrottlePercent;
                     dpDynamicBrakeCurrentNotch = (LeadLocomotive as MSTSLocomotive).DPDynamicBrakeController.CurrentNotch;
                     dpThrottleCurrentNotch = (LeadLocomotive as MSTSLocomotive).DPThrottleController.CurrentNotch;
+                    alreadyHasRemotes = true;
                     continue;
                 }
                 if (idToMove == -1 && Cars[i].RemoteControlGroup == 0)
@@ -1686,6 +1694,13 @@ public void DPMoveToBack()
                 else if (idToMove > -1 && Cars[i].RemoteControlGroup == 1)
                     Cars[i].RemoteControlGroup = 0;
             }
+            if (!alreadyHasRemotes)
+            {
+                if (LeadLocomotive.ThrottlePercent > 0)
+                    DPMode = 1;
+                else if (LeadLocomotive.DynamicBrakePercent >= 0)  // off is -1
+                    DPMode = -1;
+            }
         }
 
         /// <summary>