Add ModuleWheelsManager for configurable wheel torque settings

Projects/TerraTech/TerraTech/Class1.cs

@@ -37,6 +37,7 @@ namespace TerraTech {
             ModuleItemHolderManager.Setup(Config);
             ModuleItemProducerManager.Setup(Config);
             ModuleRemoteChargerManager.Setup(Config);
+            ModuleWheelsManager.Setup(Config);
 
             xpMultiplier =
                 Config.Bind("General", "XP Multiplier", 1f,

Projects/TerraTech/TerraTech/ModuleWheelsManager.cs

@@ -0,0 +1,54 @@
+using System;
+using BepInEx.Configuration;
+using HarmonyLib;
+
+namespace TerraTech {
+    [HarmonyPatch]
+    public class ModuleWheelsManager {
+        private static readonly MultipliedObjectManager<ManWheels.TorqueParams> torqueParamsManager =
+            new MultipliedObjectManager<ManWheels.TorqueParams>(ConfigureTorqueParams);
+
+        public static ConfigEntry<float> torqueRpmMultiplier;
+        public static ConfigEntry<float> torqueMultiplier;
+
+        public static void Setup(ConfigFile config) {
+            float min = 0.01f;
+            float max = 32f;
+
+            torqueRpmMultiplier =
+                config.Bind("TorqueParams", "Torque RPM Multiplier", 1f,
+                            new ConfigDescription("Torque RPM Multiplier", new AcceptableValueRange<float>(min, max)));
+            torqueRpmMultiplier.SettingChanged += (sender, args) => DoPatch();
+
+            torqueMultiplier =
+                config.Bind("TorqueParams", "Torque Multiplier", 1f,
+                            new ConfigDescription("Torque Multiplier", new AcceptableValueRange<float>(min, max)));
+            torqueMultiplier.SettingChanged += (sender, args) => DoPatch();
+        }
+
+        private static void ConfigureTorqueParams(MultipliedObject<ManWheels.TorqueParams> obj) {
+            obj.AddField(new FieldConfiguration<float, float>("torqueCurveMaxRpm", torqueRpmMultiplier));
+            obj.AddField(new FieldConfiguration<float, float>("torqueCurveMaxTorque", torqueMultiplier));
+        }
+
+        [HarmonyPrefix]
+        [HarmonyPatch(typeof(ModuleWheels), "OnAttached")]
+        static void PostfixCreate(ModuleWheels __instance) {
+            var trav = Traverse.Create(__instance);
+            var torqueParams = trav.Field("torqueParams");
+            torqueParamsManager.OnObjectAttached(torqueParams.GetValue<ManWheels.TorqueParams>());
+        }
+
+        [HarmonyPrefix]
+        [HarmonyPatch(typeof(ModuleWheels), "OnDetaching")]
+        static void PostfixDestroy(ModuleWheels __instance) {
+            var trav = Traverse.Create(__instance);
+            var torqueParams = trav.Field("torqueParams");
+            torqueParamsManager.OnObjectDetached(torqueParams.GetValue<ManWheels.TorqueParams>());
+        }
+
+        public static void DoPatch() {
+            torqueParamsManager.ApplyAll();
+        }
+    }
+}

Projects/TerraTech/TerraTech/ObjectFieldMultiplier.cs

@@ -323,8 +323,7 @@ namespace TerraTech {
     /// Manages a collection of objects whose fields can be multiplied
     /// </summary>
     /// <typeparam name="T">The type of objects being managed</typeparam>
-    public class MultipliedObjectManager<T>
+    public class MultipliedObjectManager<T> {
-        where T : class {
         private readonly Dictionary<T, MultipliedObject<T>> _managedObjects;
         private readonly Action<MultipliedObject<T>> _configureObject;
 

Projects/TerraTech/TerraTech/TerraTech.csproj

@@ -52,6 +52,7 @@
     <Compile Include="ModuleItemHolderManager.cs" />
     <Compile Include="ModuleItemProducerManager.cs" />
     <Compile Include="ModuleRemoteChargerManager.cs" />
+    <Compile Include="ModuleWheelsManager.cs" />
   </ItemGroup>
   <ItemGroup>
     <Reference Include="0Harmony">