added GUI with working FSD, added changelog, did many bugfixes

.gitignore

@@ -19,3 +19,4 @@ Assembly-Csharp.dll
 Assembly-Csharp-firstpass.dll
 UnityEngine.dll
 UnityEngine.UI.dll
+000_AT_Utils.dll

KerbalFuture/KFGUI/Changelog.cs

@@ -0,0 +1,117 @@
+using System;
+using System.IO;
+using UnityEngine;
+
+/*
+ * Notes on usage of the changelog
+ * 
+ * Changelog MUST be titled Changelog.cfg
+ * Changelog MUST be in the following format:
+ * 
+ * showChangelog = [true|false]
+ * VERSION
+ * {
+ *		version = 1.1
+ *		change = Added new parts.
+ *		change = Removed most bugs.
+ *	}
+ *	VERSION
+ *	{
+ *		version = 1.0
+ *		change = Release!!!
+ *	}
+ *	
+ *	Treat it with the same level of respect as you do regular config files. 
+ *	When there is a new release, change showChangelog to true. 
+ *	After the changelog is viewed in-game, the value will be automatically set to false.
+*/
+
+namespace KerbalFuture.KFGUI
+{
+	[KSPAddon(KSPAddon.Startup.SpaceCentre, false)]
+	public class Changelog : MonoBehaviour
+	{
+		// No creating new instances of this
+		private Changelog()
+		{
+
+		}
+		public string dllLoc { get; } = AssemblyLoader.GetPathByType(typeof(Changelog)).Replace("/PluginData/KerbalFuture", Path.DirectorySeparatorChar.ToString());
+		bool showChangelog;
+		Rect changelogRect = new Rect(100, 100, 300, 400);
+		Vector2 changelogScrollPos = new Vector2();
+		string changelog = string.Empty;
+
+		private void Start()
+		{
+			LoadChangelog();
+			Debug.Log("[KF] dllLoc = " + dllLoc);
+		}
+		private void OnGUI()
+		{
+			if (showChangelog)
+			{
+				changelogRect = GUILayout.Window(0, changelogRect, DrawChangelogWindow, "Kerbal Future Changelog", GUILayout.Width(300), GUILayout.Height(400));
+			}
+		}
+		private void DrawChangelogWindow(int id)
+		{
+			GUI.DragWindow(new Rect(0, 0, 300, 20));
+			changelogScrollPos = GUILayout.BeginScrollView(changelogScrollPos);
+			GUILayout.Label(changelog);
+			if(GUILayout.Button("Close changelog"))
+			{
+				showChangelog = false;
+			}
+			GUILayout.EndScrollView();
+		}
+		private void LoadChangelog()
+		{
+			Debug.Log("[KF] Loading changelog...");
+			ConfigNode versionCfg = ConfigNode.Load(Path.Combine(dllLoc, "Changelog.cfg"));
+			if(!versionCfg.HasValue("showChangelog"))
+			{
+				Debug.Log("[KF] Unable to find value showChangelog in Changelog.cfg");
+				return;
+			}
+			if(!versionCfg.TryGetValue("showChangelog", ref showChangelog))
+			{
+				Debug.Log("[KF] Unable to load value from 'showChangelog'.");
+				return;
+			}
+			if(!versionCfg.SetValue("showChangelog", false))
+			{
+				Debug.Log("[KF] Unable to set value 'showChangelog'.");
+				return;
+			}
+			versionCfg.Save(Path.Combine(dllLoc, "Changelog.cfg"));
+			if(!showChangelog)
+			{
+				Debug.Log("[KF] Changelog load aborted due to showChangelog being set to false.");
+			}
+			bool firstTimeThrough = true;
+			foreach(ConfigNode cfg in versionCfg.GetNodes())
+			{
+				if(!firstTimeThrough)
+				{
+					changelog += Environment.NewLine;
+				}
+				float version = 0;
+				cfg.TryGetValue("version", ref version);
+				if (firstTimeThrough)
+				{
+					changelog = version.ToString();
+				}
+				else
+				{
+					changelog += Environment.NewLine + version;
+				}
+				foreach (string s in cfg.GetValues("change"))
+				{
+					changelog += Environment.NewLine + s;
+				}
+				firstTimeThrough = false;
+			}
+		}
+	}
+}