Added support for user selectable number of filter wheels

Author: DanielVanNoord

ASCOM.Alpaca.Simulators/DriverManager.cs

@@ -30,6 +30,14 @@ internal static void LoadFilterWheel(int DeviceID)
             DeviceManager.LoadFilterWheel(DeviceID, dev, dev.DeviceName, dev.UniqueID);
         }
 
+        internal static void LoadFilterWheels()
+        {
+            for (int i = 0; i < ServerSettings.NumberOfFilterWheels; i++)
+            {
+                LoadFilterWheel(i);
+            }
+        }
+
         internal static void LoadFocuser(int DeviceID)
         {
             var dev = new ASCOM.Simulators.Focuser(DeviceID, new OmniSim.Tools.DualLogger(ServerSettings.LogFileNameDevice("Focuser", DeviceID), Logging.Log), new XMLProfile(ServerSettings.SettingsFolderName, DeviceManager.Focuser, (uint)DeviceID));

ASCOM.Alpaca.Simulators/Pages/Setup.razor

@@ -121,6 +121,13 @@
         <div class="grid-item-left">
             <input type="checkbox" @bind="PreventRemoteDisconnects">
         </div>
+        <p>Note: reducing the number of drivers requires a restart to apply</p>
+        <div class="grid-item-right">
+            <span>Number of FilterWheels:</span>
+        </div>
+        <div class="grid-item-left">
+            <input type="number" @bind="NFilterWheels" min="1" max="4" style="width:20ch;">
+        </div>
         <div class="grid-item-right">
         </div>
         <div class="grid-item-right">
@@ -309,6 +316,12 @@
         set;
     } = ServerSettings.DiscoveryPort;
 
+    UInt16 NFilterWheels
+    {
+        get;
+        set;
+    } = ServerSettings.NumberOfFilterWheels;
+
     bool StrictAPIMode
     {
         get;
@@ -523,6 +536,8 @@
         try
         {
             ServerSettings.PreventRemoteDisconnects = PreventRemoteDisconnects;
+            ServerSettings.NumberOfFilterWheels = NFilterWheels;
+            DriverManager.LoadFilterWheels();
 
             DisplaySuccess("Driver Settings Saved");
         }

ASCOM.Alpaca.Simulators/Program.cs

@@ -211,8 +211,7 @@ private static Task InitServers(string[] args)
             DriverManager.LoadCamera(0);
             DriverManager.LoadCoverCalibrator(0);
             DriverManager.LoadDome(0);
-            DriverManager.LoadFilterWheel(0);
-            DriverManager.LoadFilterWheel(1);
+            DriverManager.LoadFilterWheels();
             DriverManager.LoadFocuser(0);
             DriverManager.LoadFocuser(1);
             DriverManager.LoadObservingConditions(0);
@@ -318,7 +317,7 @@ private static bool ProcessArgs(string[] args, bool existing_instance)
                     DriverManager.LoadCamera(0);
                     DriverManager.LoadCoverCalibrator(0);
                     DriverManager.LoadDome(0);
-                    DriverManager.LoadFilterWheel(0);
+                    DriverManager.LoadFilterWheels();
                     DriverManager.LoadFocuser(0);
                     DriverManager.LoadObservingConditions(0);
                     DriverManager.LoadRotator(0);

ASCOM.Alpaca.Simulators/ServerSettings.cs

@@ -432,6 +432,28 @@ internal static bool RunInStrictAlpacaMode
             }
         }
 
+        #region Driver Creation Settings
+        internal static ushort NumberOfFilterWheels
+        {
+            get
+            {
+                if (ushort.TryParse(Profile.GetValue("NumberOfFilterWheels", 1.ToString()), out ushort result))
+                {
+                    if(result > 4)
+                    {
+                        return 4;
+                    }
+                    return result;
+                }
+                return 1;
+            }
+            set
+            {
+                Profile.WriteValue("NumberOfFilterWheels", value.ToString());
+            }
+        }
+        #endregion
+
         #region SSL Settings
 
         internal static bool UseSSL