Automatic merge of T1.5.1-799-gb02a6e5d3 and 14 pull requests

- Pull request #570 at 3539862: Experimental glTF 2.0 support with PBR lighting
- Pull request #839 at d00beb9: First phase of https://blueprints.launchpad.net/or/+spec/additional-cruise-control-parameters
- Pull request #876 at f92de76: docs: add source for documents previously on website to source Documentation folder
- Pull request #882 at a055bca: Blueprint/train car operations UI window
- Pull request #885 at 8f94333: feat: Add notifications to Menu
- Pull request #886 at 6c0785b: Scene viewer extension to TrackViewer
- Pull request #892 at 1f5ba4c: Signal Function OPP_SIG_ID_TRAINPATH
- Pull request #896 at 5866028: First implementation of https://blueprints.launchpad.net/or/+spec/specific-sounds-for-ai-trains
- Pull request #897 at 42f1dd9: feat: Improved system information collection
- Pull request #899 at ff2e73d: Duplex steam engines - Booster Engine addition
- Pull request #903 at 6c9da3f: Downloading route content (Github, zip)
- Pull request #907 at 9b0b04f: Bug fix for https://bugs.launchpad.net/or/+bug/2047300 Dynamic tracks disappear after long tunnel
- Pull request #908 at 4b4afe3: feat: supports switching adhesion precisions
- Pull request #911 at 6834af0: docs: Add refactoring as a special type of PR

Author: openrails-bot

Source/Orts.Simulation/Simulation/RollingStocks/MSTSSteamLocomotive.cs

@@ -7936,7 +7936,7 @@ public override string GetDebugStatus()
                         Simulator.Catalog.GetString("Slip"),
                         SteamEngines[i].AttachedAxle.IsWheelSlip ? Simulator.Catalog.GetString("Yes") : Simulator.Catalog.GetString("No"),
                         Simulator.Catalog.GetString("WheelM"),
-                        FormatStrings.FormatMass(Kg.FromLb(SteamDrvWheelWeightLbs), IsMetric),
+                        FormatStrings.FormatMass(SteamEngines[i].AttachedAxle.WheelWeightKg, IsMetric),
                         Simulator.Catalog.GetString("FoA"),
                         SteamEngines[i].CalculatedFactorOfAdhesion);
                 }

Source/Orts.Simulation/Simulation/RollingStocks/MSTSWagon.cs

@@ -44,6 +44,7 @@
 using Orts.Simulation.RollingStocks.SubSystems.Controllers;
 using Orts.Simulation.RollingStocks.SubSystems.PowerSupplies;
 using Orts.Simulation.RollingStocks.SubSystems.PowerTransmissions;
+using Orts.Simulation.Simulation.RollingStocks.SubSystems.PowerSupplies;
 using ORTS.Common;
 using ORTS.Scripting.Api;
 using System;
@@ -2192,6 +2193,11 @@ private void UpdateLocomotiveLoadPhysics()
                             MassKG = MathHelper.Clamp(MassKG, LoadEmptyMassKg, LoadFullMassKg); // Clamp Mass to between the empty and full wagon values   
                             // Adjust drive wheel weight
                             SteamLocomotiveIdentification.DrvWheelWeightKg = (MassKG / InitialMassKG) * SteamLocomotiveIdentification.InitialDrvWheelWeightKg;
+
+                            // update drive wheel weight for each multiple steam engine
+                            UpdateDriveWheelWeight(LocoIndex, MassKG, SteamLocomotiveIdentification.SteamEngines.Count);
+
+
                         }
                         else // locomotive must be a tender type locomotive
                         // This is a tender locomotive. A tender locomotive does not have any fuel onboard.
@@ -2202,6 +2208,10 @@ private void UpdateLocomotiveLoadPhysics()
                             MassKG = MathHelper.Clamp(MassKG, LoadEmptyMassKg, MassUpperLimit); // Clamp Mass to between the empty and full wagon values        
                         // Adjust drive wheel weight
                             SteamLocomotiveIdentification.DrvWheelWeightKg = (MassKG / InitialMassKG) * SteamLocomotiveIdentification.InitialDrvWheelWeightKg;
+
+                            // update drive wheel weight for each multiple steam engine
+                            UpdateDriveWheelWeight(LocoIndex, MassKG, SteamLocomotiveIdentification.SteamEngines.Count);
+
                         }
 
                         // Update wagon physics parameters sensitive to wagon mass change
@@ -2280,6 +2290,19 @@ private void UpdateLocomotiveLoadPhysics()
             }
         }
 
+        private void UpdateDriveWheelWeight(int index,  float masskg, int numberofengines)
+        {
+           var  LocoIdentification = Train.Cars[index] as MSTSSteamLocomotive;
+            if (LocoIdentification != null)
+            {
+
+                for (int i = 0; i < LocoIdentification.SteamEngines.Count; i++)
+                {
+                    LocoIdentification.SteamEngines[i].AttachedAxle.WheelWeightKg = (MassKG / InitialMassKG) * LocoIdentification.SteamEngines[i].AttachedAxle.InitialDrvWheelWeightKg;
+                }
+            }
+        }
+
         private void UpdateTrainBaseResistance()
         {
             IsBelowMergeSpeed = AbsSpeedMpS < MergeSpeedMpS;

Source/Orts.Simulation/Simulation/RollingStocks/SubSystems/PowerTransmissions/Axle.cs

@@ -583,6 +583,11 @@ public float TransmissionEfficiency
         /// </summary>
         public float WheelWeightKg;
 
+        /// <summary>
+        /// Initial Wheel mass parameter in kilograms, is the reference against which the dynamic wheel weight is calculated.
+        /// </summary>
+        public float InitialDrvWheelWeightKg;
+        
         /// <summary>
         /// Flange angle wheels connected to axle
         /// </summary>