Add ModuleAutoCutDrogue

- Added ModuleAutoCutDrogue, Adapted with permission from Bluedog Design Bureau.

Author: SofieBrink

GameData/KSPCommunityPartModules/Localization/en-us.cfg

@@ -0,0 +1,8 @@
+Localization
+{
+    en-us
+    {
+        // ModuleAutoCutDrogue
+        #KSPCPM_CutDrogues = Auto-Cut Drogue Chute(s)
+    }
+}

README.md

@@ -21,5 +21,7 @@ Compatible with **KSP 1.12.3** and up - Available on [CKAN]
 
 - **ModuleCoPFollowTransform**<br/>This module adjusts the Centre of Pressure (CoP) to follow a specified transform on the same part, improving functionality for animated drag-based systems like parachutes.
 
+- **ModuleAutoCutDrogue**<br/>Automatically cuts deployed drogue chutes when main parachutes deploy, allowing for more realistic landings without requiring users to set up complicated action groups. 
+
 
 [CKAN]: https://forum.kerbalspaceprogram.com/topic/197082-ckan-the-comprehensive-kerbal-archive-network-v1332-laplace-ksp-2-support/

Source/KSPCommunityPartModules.csproj

@@ -34,6 +34,7 @@
     <PackageReference Include="KSPBuildTools" Version="0.0.2-alpha.5" />
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="Modules\ModuleAutoCutDrogue.cs" />
     <Compile Include="Modules\ModuleCoPFollowTransform.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
   </ItemGroup>

Source/Modules/ModuleAutoCutDrogue.cs

@@ -0,0 +1,64 @@
+/*
+    Usecase:        Automatically cutting parachute modules that are specified as drogue chutes
+    Example:        Bluedog Design Bureau Apollo command pod parachutes.
+    Originally By:  Jsolson
+    Originally For: Bluedog Design Bureau
+*/
+using System.Linq;
+using UnityEngine;
+
+namespace KSPCommunityPartModules.Modules
+{
+    class ModuleAutoCutDrogue : PartModule
+    {
+        [KSPField]
+        public bool isDrogueChute = false;
+
+        [UI_Toggle(scene = UI_Scene.All, disabledText = "No", enabledText = "Yes")]
+        [KSPField(isPersistant = true, guiActive = true, guiActiveEditor = true, guiName = "#KSPCPM_CutDrogues")]
+        public bool autoCutDrogue = true;
+
+        [KSPField(isPersistant = true)]
+        public bool triggered = false;
+
+        private ModuleParachute chute = null;
+        private bool IsChuteDeployed(ModuleParachute pParachute) => pParachute.deploymentState == ModuleParachute.deploymentStates.DEPLOYED
+                                                                 || pParachute.deploymentState == ModuleParachute.deploymentStates.SEMIDEPLOYED;
+        public override void OnStart(StartState state)
+        {
+            chute = part.FindModulesImplementing<ModuleParachute>().FirstOrDefault();
+            if (chute == null)
+                Debug.LogError($"[{nameof(ModuleAutoCutDrogue)}] ModuleParachute not found on part {part.partInfo.title}");
+
+            Fields[nameof(autoCutDrogue)].guiActive = !isDrogueChute;
+            Fields[nameof(autoCutDrogue)].guiActiveEditor = !isDrogueChute;
+        }
+
+        public void FixedUpdate()
+        {
+            if (isDrogueChute || chute == null)
+            {
+                this.isEnabled = false;
+                this.enabled = false;
+                return;
+            }
+
+            if (IsChuteDeployed(chute))
+            {
+                if (!triggered)
+                {
+                    var drogues = vessel.FindPartModulesImplementing<ModuleAutoCutDrogue>().Where(d => d.isDrogueChute && d.chute != null);
+                    foreach (ModuleAutoCutDrogue d in drogues)
+                    {
+                        if (IsChuteDeployed(d.chute)) d.chute.CutParachute();
+                    }
+                    triggered = true;
+                }
+            }
+            else if (chute.deploymentState == ModuleParachute.deploymentStates.STOWED)
+            {
+                triggered = false;
+            }
+        }
+    }
+}