added mesh switch

Firespitter/Firespitter.csproj

@@ -68,6 +68,7 @@
     <Compile Include="engine\FSgroundParticles.cs" />
     <Compile Include="engine\FSheliLiftEngine.cs" />
     <Compile Include="engine\FSengine.cs" />
+    <Compile Include="gui\FSmeshSwitch.cs" />
     <Compile Include="tools\MeshCreator.cs" />
     <Compile Include="tools\CompatabilityChecker.cs" />
     <Compile Include="tools\FSversionCheck.cs" />

Firespitter/gui/FSmeshSwitch.cs

@@ -0,0 +1,86 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using UnityEngine;
+
+namespace Firespitter.gui
+{
+    public class FSmeshSwitch : PartModule
+    {
+        [KSPField]
+        public string buttonName = "Next part variant";
+
+        [KSPField]
+        public string objects = string.Empty;
+
+        // in case of multiple instances of this module, on will be the master, the rest slaves.
+        [KSPField]
+        public bool isController = true;
+
+        // in case of multiple sets of master/slaves, only affect ones on the same channel.
+        [KSPField]
+        public int channel = 0;
+
+        [KSPField(isPersistant = true)]
+        public int selectedObject = 0;
+
+        private string[] objectNames;
+        private List<Transform> objectTransforms = new List<Transform>();
+
+        [KSPEvent(guiActive = false, guiActiveEditor = true, guiActiveUnfocused = false, guiName = "Next part variant")]
+        public void nextObjectEvent()
+        {
+            selectedObject++;
+            if (selectedObject >= objectTransforms.Count)
+            {
+                selectedObject = 0;
+            }
+            switchToObject(selectedObject);
+        }
+
+        private void parseObjectNames()
+        {
+            objectNames = objects.Split(';');
+            if (objectNames.Length < 1)
+                Debug.Log("FSmeshSwitch: Found no object names in the object list");
+            else
+            {
+                objectTransforms.Clear();
+                for (int i = 0; i < objectNames.Length; i++)
+                {
+                    Transform newTransform = part.FindModelTransform(objectNames[i]);
+                    if (newTransform != null)
+                    {
+                        objectTransforms.Add(newTransform);
+                        //Debug.Log("FSmeshSwitch: added object to list: " + objectNames[i]);
+                    }
+                    else
+                    {
+                        Debug.Log("FSmeshSwitch: could not find object " + objectNames[i]);
+                    }
+                }
+            }
+        }
+
+        private void switchToObject(int objectNumber)
+        {
+            if (objectNumber >= objectTransforms.Count) return;
+
+            for (int i = 0; i < objectTransforms.Count; i++)
+            {                
+                objectTransforms[i].gameObject.renderer.enabled = false;
+            }
+
+            // enable the selected one last because there might be several entries with the same object, and we don't want to disable it after it's been enabled.
+            objectTransforms[objectNumber].gameObject.renderer.enabled = true;
+        }
+
+        public override void OnStart(PartModule.StartState state)
+        {
+            parseObjectNames();
+            switchToObject(selectedObject);
+            Events["nextObjectEvent"].guiName = buttonName;
+        }
+    }
+}

For release/Firespitter/Firespitter.version

@@ -1,6 +1,6 @@
 {
   "NAME": "Firespitter",
-  "URL": "https://raw.githubusercontent.com/snjo/Firespitter/master/For\ release/Firespitter/Firespitter.version",
+  "URL": "https://raw.githubusercontent.com/snjo/Firespitter/master/For%20release/Firespitter/Firespitter.version",
   "VERSION": {
     "MAJOR": 6,
     "MINOR": 3,