Add a warning window for incorrect installs.

Client/Client.csproj

@@ -75,6 +75,7 @@
     <Compile Include="OptionsWindow.cs" />
     <Compile Include="UniverseConverter.cs" />
     <Compile Include="UniverseConverterWindow.cs" />
+    <Compile Include="IncorrectInstallWindow.cs" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\Common\Common.csproj">

Client/IncorrectInstallWindow.cs

@@ -0,0 +1,76 @@
+using System;
+using UnityEngine;
+
+namespace DarkMultiPlayer
+{
+    public class IncorrectInstallWindow
+    {
+        public static IncorrectInstallWindow singleton;
+
+        private const int WINDOW_WIDTH = 600;
+        private const int WINDOW_HEIGHT = 200;
+        private Rect windowRect;
+        private Rect moveRect;
+        private bool initialized;
+        private bool display;
+        private GUILayoutOption[] layoutOptions;
+
+
+        public static IncorrectInstallWindow fetch
+        {
+            get
+            {
+                return singleton;
+            }
+        }
+
+        private void InitGUI()
+        {
+            //Setup GUI stuff
+            windowRect = new Rect((Screen.width / 2f) - (WINDOW_WIDTH / 2), (Screen.height / 2f) - (WINDOW_HEIGHT / 2f), WINDOW_WIDTH, WINDOW_HEIGHT);
+            moveRect = new Rect(0, 0, 10000, 20);
+
+            layoutOptions = new GUILayoutOption[2];
+            layoutOptions[0] = GUILayout.ExpandWidth(true);
+            layoutOptions[1] = GUILayout.ExpandHeight(true);
+        }
+
+        private void Draw()
+        {
+            if (!initialized)
+            {
+                initialized = true;
+                InitGUI();
+            }
+            if (display)
+            {
+                windowRect = GUILayout.Window(GUIUtility.GetControlID(6705, FocusType.Passive), windowRect, DrawContent, "DarkMultiPlayer", layoutOptions);
+            }
+        }
+
+        private void DrawContent(int windowID)
+        {
+            GUILayout.BeginVertical();
+            GUI.DragWindow(moveRect);
+            GUILayout.Label("DMP is not correctly installed");
+            GUILayout.Label("Current location: " + Client.fetch.assemblyPath);
+            GUILayout.Label("Correct location: " + Client.fetch.assemblyShouldBeInstalledAt);
+            GUILayout.FlexibleSpace();
+            if (GUILayout.Button("Close"))
+            {
+                display = false;
+            }
+            GUILayout.EndVertical();
+        }
+
+        public static void Enable()
+        {
+            singleton = new IncorrectInstallWindow();
+            lock (Client.eventLock) {
+                Client.drawEvent.Add(singleton.Draw);
+            }
+            singleton.display = true;
+        }
+    }
+}
+

Client/Main.cs

@@ -3,6 +3,7 @@
 using System.IO;
 using UnityEngine;
 using DarkMultiPlayerCommon;
+using System.Reflection;
 
 namespace DarkMultiPlayer
 {
@@ -14,6 +15,10 @@ public class Client : MonoBehaviour
         public string status;
         public bool forceQuit;
         public bool showGUI = true;
+        public bool incorrectlyInstalled = false;
+        public bool displayedIncorrectMessage = false;
+        public string assemblyPath;
+        public string assemblyShouldBeInstalledAt;
         //Game running is directly set from NetworkWorker.fetch after a successful connection
         public bool gameRunning;
         public GameMode gameMode;
@@ -44,6 +49,18 @@ public static Client fetch
         public void Awake()
         {
             GameObject.DontDestroyOnLoad(this);
+            assemblyPath = new DirectoryInfo(Assembly.GetExecutingAssembly().Location).FullName;
+            string kspPath = new DirectoryInfo(KSPUtil.ApplicationRootPath).FullName;
+            //I find my abuse of Path.Combine distrubing.
+            assemblyShouldBeInstalledAt = Path.Combine(Path.Combine(Path.Combine(Path.Combine(kspPath, "GameData"), "DarkMultiPlayer"), "Plugins"), "DarkMultiPlayer.dll");
+            UnityEngine.Debug.Log("KSP installed at " + kspPath);
+            UnityEngine.Debug.Log("DMP installed at " + assemblyPath);
+            incorrectlyInstalled = (assemblyPath.ToLower() != assemblyShouldBeInstalledAt.ToLower());
+            if (incorrectlyInstalled)
+            {
+                UnityEngine.Debug.LogError("DMP is installed at '" + assemblyPath + "', It should be installed at '"+assemblyShouldBeInstalledAt+"'");
+                return;
+            }
             SetupDirectoriesIfNeeded();
             //Register events needed to bootstrap the workers.
             lock (eventLock)
@@ -83,6 +100,15 @@ public void Start()
 
         public void Update()
         {
+            if (incorrectlyInstalled)
+            {
+                if (!displayedIncorrectMessage)
+                {
+                    displayedIncorrectMessage = true;
+                    IncorrectInstallWindow.Enable();
+                }
+                return;
+            }
             try
             {
                 if (HighLogic.LoadedScene == GameScenes.MAINMENU && !ModWorker.fetch.dllListBuilt)