Automatic merge of T1.6-59-g2eb7441b0 and 11 pull requests

- Pull request #1156 at f46d5f2: Fix incorrectly disabled options in train operations window
- Pull request #1086 at d8d61eb: Add Settings Exporter tool (copy settings to INI, etc)
- Pull request #1091 at e813c42: Automatic speed control
- Pull request #1104 at 7919243: Handle simple adhesion within the axle module
- Pull request #1115 at 270f22f: Do not activate ETS switch if no suitable cars are attached
- Pull request #1120 at ba3c47f: Automatically Calculate Friction Values if Missing
- Pull request #1121 at 91d2d26: Manually Override Articulation
- Pull request #1124 at e241a0d: Built-in PBL2 brake controller
- Pull request #1157 at 39cd994: Dynamic brake authorization by TCS
- Pull request #1082 at 5845a1a: Allow variable water level in glass gauge
- Pull request #1128 at 1d7643d: Particle Emitter Overhaul

Author: openrails-bot

Source/RunActivity/Viewer3D/Popups/TrainCarOperationsViewerWindow.cs

@@ -1189,6 +1189,7 @@ public ToggleBatterySwitch(int x, int y, int size, Viewer viewer, int carPositio
                     if (wagon.PowerSupply.BatterySwitch.Mode == BatterySwitch.ModeType.AlwaysOn)
                     {
                         Texture = BattAlwaysOn32;
+                        TrainCarViewer.BatterySwitchOn = wagon.PowerSupply.BatterySwitch.On;
                     }
                     else
                     {

Source/RunActivity/Viewer3D/Popups/TrainCarOperationsWindow.cs

@@ -1091,6 +1091,7 @@ public buttonFrontAngleCock(int x, int y, int size, Viewer viewer, TrainCar car,
             Viewer = viewer;
             TrainCarViewer = Viewer.TrainCarOperationsViewerWindow;
             var CurrentCar = Viewer.PlayerTrain.Cars[carPosition];
+            var First = car == viewer.PlayerTrain.Cars.First();
 
             if (CurrentCar.BrakeSystem is VacuumSinglePipe)
             {
@@ -1109,7 +1110,7 @@ public buttonFrontAngleCock(int x, int y, int size, Viewer viewer, TrainCar car,
             var trainCarOperations = Viewer.TrainCarOperationsWindow;
             if (!trainCarOperations.WarningCarPosition[carPosition])
             {
-                trainCarOperations.updateWarningCarPosition(carPosition, Texture, FrontAngleCockClosed);
+                trainCarOperations.updateWarningCarPosition(carPosition, Texture, First ? FrontAngleCockOpened : FrontAngleCockClosed);
                 trainCarOperations.updateWarningCarPosition(carPosition, Texture, FrontAngleCockPartial);
             }
         }
@@ -1122,6 +1123,7 @@ public buttonRearAngleCock(int x, int y, int size, Viewer viewer, TrainCar car,
         {
             Viewer = viewer;
             var CurrentCar = Viewer.PlayerTrain.Cars[carPosition];
+            var Last = car == viewer.PlayerTrain.Cars.Last();
 
             if (CurrentCar.BrakeSystem is VacuumSinglePipe)
             {
@@ -1140,7 +1142,7 @@ public buttonRearAngleCock(int x, int y, int size, Viewer viewer, TrainCar car,
             var trainCarOperations = Viewer.TrainCarOperationsWindow;
             if (!trainCarOperations.WarningCarPosition[carPosition])
             {
-                trainCarOperations.updateWarningCarPosition(carPosition, Texture, RearAngleCockClosed);
+                trainCarOperations.updateWarningCarPosition(carPosition, Texture, Last ? RearAngleCockOpened: RearAngleCockClosed);
                 trainCarOperations.updateWarningCarPosition(carPosition, Texture, RearAngleCockPartial);
             }
         }