Major reworking of the HUD underpinnings to be more modular and require less code duplication. Also made the Editor HUD movable, but for now it's stuck along the left edge.
Major reworking of the HUD underpinnings to be more modular and require less code duplication. Also made the Editor HUD movable, but for now it's stuck along the left edge.

--- a/Properties/AssemblyInfo.cs
+++ b/Properties/AssemblyInfo.cs
@@ -39,7 +39,7 @@
 // The assembly version has the format "{Major}.{Minor}.{Build}.{Revision}".
 // The form "{Major}.{Minor}.*" will automatically update the build and revision,
 // and "{Major}.{Minor}.{Build}.*" will update just the revision.
-[assembly: AssemblyVersion("0.15.*")]
+[assembly: AssemblyVersion("0.16.*")]
 // The following attributes are used to specify the signing key for the assembly,
 // if desired. See the Mono documentation for more information about signing.
 //[assembly: AssemblyDelaySign(false)]

--- a/VOID.csproj
+++ b/VOID.csproj
@@ -100,6 +100,7 @@
     <Compile Include="VOID_StageInfo.cs" />
     <Compile Include="VOID_Styles.cs" />
     <Compile Include="VOID_Data.cs" />
+    <Compile Include="VOID_HUDModule.cs" />
   </ItemGroup>
   <ProjectExtensions>
     <MonoDevelop>

--- a/VOID_Core.cs
+++ b/VOID_Core.cs
@@ -809,7 +809,7 @@
 					SimManager.Gravity = this.vessel.mainBody.gravParameter / (radius * radius);
 				}
 
-				SimManager.minSimTime = new TimeSpan(0, 0, (int)(this.updatePeriod * 1000));
+				SimManager.minSimTime = new TimeSpan(0, 0, 0, 0, (int)(this.updatePeriod * 1000d));
 
 				SimManager.TryStartSimulation();
 			}

--- a/VOID_EditorHUD.cs
+++ b/VOID_EditorHUD.cs
@@ -37,41 +37,20 @@
 
 namespace VOID
 {
-	public class VOID_EditorHUD : VOID_Module, IVOID_EditorModule
+	public class VOID_EditorHUD : VOID_HUDModule, IVOID_EditorModule
 	{
 		/*
 		 * Fields
 		 * */
-		[AVOID_SaveValue("colorIndex")]
-		protected VOID_SaveValue<int> _colorIndex = 0;
-
-		protected List<Color> textColors = new List<Color>();
-
-		protected GUIStyle labelStyle;
-
+		[AVOID_SaveValue("ehudWindowPos")]
+		protected VOID_SaveValue<Rect> ehudWindowPos;
+
+		protected HUDWindow ehudWindow;
 		protected EditorVesselOverlays _vesselOverlays;
 
 		/*
 		 * Properties
 		 * */
-		public int ColorIndex
-		{
-			get
-			{
-				return this._colorIndex;
-			}
-			set
-			{
-				if (this._colorIndex >= this.textColors.Count - 1)
-				{
-					this._colorIndex = 0;
-					return;
-				}
-
-				this._colorIndex = value;
-			}
-		}
-
 		protected EditorVesselOverlays vesselOverlays
 		{
 			get
@@ -122,57 +101,26 @@
 
 			this.toggleActive = true;
 
-			this.textColors.Add(Color.green);
-			this.textColors.Add(Color.black);
-			this.textColors.Add(Color.white);
-			this.textColors.Add(Color.red);
-			this.textColors.Add(Color.blue);
-			this.textColors.Add(Color.yellow);
-			this.textColors.Add(Color.gray);
-			this.textColors.Add(Color.cyan);
-			this.textColors.Add(Color.magenta);
-
-			this.labelStyle = new GUIStyle ();
-			// this.labelStyle.alignment = TextAnchor.UpperRight;
-			this.labelStyle.normal.textColor = this.textColors [this.ColorIndex];
+			this.ehudWindow = new HUDWindow(
+				this.ehudWindowFunc,
+				new Rect(EditorPanels.Instance.partsPanelWidth + 10f, 125f, 300f, 64f)
+			);
+			this.Windows.Add(this.ehudWindow);
+			this.ehudWindowPos = this.ehudWindow.WindowPos;
 
 			Tools.PostDebugMessage (this.GetType().Name + ": Constructed.");
 		}
 
-		public override void DrawGUI()
-		{
-			SimManager.RequestSimulation();
+		public void ehudWindowFunc(int id)
+		{
+			StringBuilder hudString = new StringBuilder();
 
 			if (this.core.LastStage == null)
 			{
 				return;
 			}
 
-			float hudLeft;
-			StringBuilder hudString;
-
-			if (EditorLogic.fetch.editorScreen == EditorScreen.Parts)
-			{
-				hudLeft = EditorPanels.Instance.partsPanelWidth + 10;
-			}
-			else if (EditorLogic.fetch.editorScreen == EditorScreen.Actions)
-			{
-				hudLeft = EditorPanels.Instance.actionsPanelWidth + 10;
-			}
-			else
-			{
-				return;
-			}
-
-			GUI.skin = this.core.Skin;
-
-			Rect hudPos = new Rect (hudLeft, 48, 300, 32);
-
-			hudString = new StringBuilder();
-
 			// GUI.skin = AssetBase.GetGUISkin("KSP window 2");
-
-			labelStyle.normal.textColor = textColors [ColorIndex];
 
 			hudString.Append("Total Mass: ");
 			hudString.Append(this.core.LastStage.totalMass.ToString("F3"));
@@ -212,18 +160,60 @@
 					).ToString("F3"));
 			}
 
-			GUI.Label (
-				hudPos,
-				hudString.ToString(),
-				labelStyle);
-		}
-
-		public override void DrawConfigurables()
-		{
-			if (GUILayout.Button ("Change HUD color", GUILayout.ExpandWidth (false)))
-			{
-				++this.ColorIndex;
-			}
+			GUILayout.Label(hudString.ToString(), VOID_Styles.labelHud, GUILayout.ExpandWidth(true));
+
+			if (!this.positionsLocked)
+			{
+				GUI.DragWindow();
+			}
+
+			GUI.BringWindowToBack(id);
+		}
+
+		public override void DrawGUI()
+		{
+			float hudLeft;
+
+			if (EditorLogic.fetch.editorScreen == EditorScreen.Parts)
+			{
+				hudLeft = EditorPanels.Instance.partsPanelWidth + 10f;
+				hudLeft += EditorPartList.Instance.transformTopLeft.position.x -
+					EditorPartList.Instance.transformTopLeft.parent.parent.position.x -
+					72f;
+			}
+			else if (EditorLogic.fetch.editorScreen == EditorScreen.Actions)
+			{
+				hudLeft = EditorPanels.Instance.actionsPanelWidth + 10f;
+			}
+			else
+			{
+				return;
+			}
+
+			bool snapToEdge = Mathf.Abs(this.ehudWindowPos.value.xMin - hudLeft) < 15f;
+
+			Tools.PostDebugMessage(this,
+				"EditorPartList topLeft.parent.parent.position: {0}\n" +
+				"EditorPartList topLeft.parent.position: {1}\n" +
+				"EditorPartList topLeft.position: {2}\n" +
+				"snapToEdge: {3} (pos.Xmin: {4}; hudLeft: {5})",
+				EditorPartList.Instance.transformTopLeft.parent.parent.position,
+				EditorPartList.Instance.transformTopLeft.parent.position,
+				EditorPartList.Instance.transformTopLeft.position,
+				snapToEdge, this.ehudWindowPos.value.xMin, hudLeft
+			);
+
+			base.DrawGUI();
+
+			Rect hudPos = this.ehudWindow.WindowPos;
+
+			hudPos.xMin = hudLeft;
+			hudPos.width = this.ehudWindow.defaultWindowPos.width;
+
+			this.ehudWindowPos.value = hudPos;
+
+			this.ehudWindow.WindowPos = this.ehudWindowPos;
+
 		}
 	}
 }

--- a/VOID_HUD.cs
+++ b/VOID_HUD.cs
@@ -36,47 +36,22 @@
 
 namespace VOID
 {
-	public class VOID_HUD : VOID_Module, IVOID_Module
+	public class VOID_HUD : VOID_HUDModule, IVOID_Module
 	{
 		/*
 		 * Fields
 		 * */
-		[AVOID_SaveValue("colorIndex")]
-		protected VOID_SaveValue<int> _colorIndex;
-
-		protected List<Color> textColors;
-
-		protected Rect leftHUDdefaultPos;
-		protected Rect rightHUDdefaultPos;
-
 		[AVOID_SaveValue("leftHUDPos")]
 		protected VOID_SaveValue<Rect> leftHUDPos;
 		[AVOID_SaveValue("rightHUDPos")]
 		protected VOID_SaveValue<Rect> rightHUDPos;
 
-		[AVOID_SaveValue("positionsLocked")]
-		protected VOID_SaveValue<bool> positionsLocked;
+		protected HUDWindow leftWindow;
+		protected HUDWindow rightWindow;
 
 		/*
 		 * Properties
 		 * */
-		public int ColorIndex
-		{
-			get
-			{
-				return this._colorIndex;
-			}
-			set
-			{
-				if (this._colorIndex >= this.textColors.Count - 1)
-				{
-					this._colorIndex = 0;
-					return;
-				}
-
-				this._colorIndex = value;
-			}
-		}
 
 		/* 
 		 * Methods
@@ -87,29 +62,25 @@
 
 			this.toggleActive = true;
 
-			this._colorIndex = 0;
+			this.leftWindow = new HUDWindow(this.leftHUDWindow, new Rect(Screen.width * .375f - 300f, 0f, 300f, 90f));
+			this.Windows.Add(this.leftWindow);
 
-			this.textColors = new List<Color>();
+			this.leftHUDPos = this.leftWindow.WindowPos;
 
-			this.textColors.Add(Color.green);
-			this.textColors.Add(Color.black);
-			this.textColors.Add(Color.white);
-			this.textColors.Add(Color.red);
-			this.textColors.Add(Color.blue);
-			this.textColors.Add(Color.yellow);
-			this.textColors.Add(Color.gray);
-			this.textColors.Add(Color.cyan);
-			this.textColors.Add(Color.magenta);
+			this.rightWindow = new HUDWindow(this.rightHUDWindow, new Rect(Screen.width * .625f, 0f, 300f, 90f));
+			this.Windows.Add(this.rightWindow);
 
-			this.leftHUDdefaultPos = new Rect(Screen.width * .375f - 300f, 0f, 300f, 90f);
-			this.leftHUDPos = new Rect(this.leftHUDdefaultPos);
-
-			this.rightHUDdefaultPos = new Rect(Screen.width * .625f, 0f, 300f, 90f);
-			this.rightHUDPos = new Rect(this.rightHUDdefaultPos);
-
-			this.positionsLocked = true;
+			this.rightHUDPos = this.rightWindow.WindowPos;
 
 			Tools.PostDebugMessage ("VOID_HUD: Constructed.");
+		}
+
+		public override void DrawGUI()
+		{
+			base.DrawGUI();
+
+			this.leftHUDPos.value = this.leftWindow.WindowPos;
+			this.rightHUDPos.value = this.rightWindow.WindowPos;
 		}
 
 		protected void leftHUDWindow(int id)
@@ -219,52 +190,6 @@
 
 			GUI.BringWindowToBack(id);
 		}
-
-		public override void DrawGUI()
-		{
-			VOID_Styles.labelHud.normal.textColor = textColors [ColorIndex];
-
-			GUI.skin = this.core.Skin;
-
-			if ((TimeWarp.WarpMode == TimeWarp.Modes.LOW) || (TimeWarp.CurrentRate <= TimeWarp.MaxPhysicsRate))
-			{
-				SimManager.RequestSimulation();
-			}
-
-			this.leftHUDPos.value = GUI.Window(
-				this.core.windowID,
-				this.leftHUDPos,
-				VOID_Tools.GetWindowHandler(this.leftHUDWindow),
-				GUIContent.none,
-				GUIStyle.none
-			);
-
-			this.rightHUDPos.value = GUI.Window(
-				this.core.windowID,
-				this.rightHUDPos,
-				VOID_Tools.GetWindowHandler(this.rightHUDWindow),
-				GUIContent.none,
-				GUIStyle.none
-			);
-		}
-
-		public override void DrawConfigurables()
-		{
-			if (GUILayout.Button (string.Intern("Change HUD color"), GUILayout.ExpandWidth (false)))
-			{
-				++this.ColorIndex;
-			}
-
-			if (GUILayout.Button(string.Intern("Reset HUD Positions"), GUILayout.ExpandWidth(false)))
-			{
-				this.leftHUDPos = new Rect(this.leftHUDdefaultPos);
-				this.rightHUDPos = new Rect(this.rightHUDdefaultPos);
-			}
-
-			this.positionsLocked = GUILayout.Toggle(this.positionsLocked,
-				string.Intern("Lock HUD Positions"),
-				GUILayout.ExpandWidth(false));
-		}
 	}
 }
 

--- a/VOID_HUDAdvanced.cs
+++ b/VOID_HUDAdvanced.cs
@@ -37,37 +37,38 @@
 
 namespace VOID
 {
-	public class VOID_HUDAdvanced : VOID_Module, IVOID_Module
+	public class VOID_HUDAdvanced : VOID_HUDModule, IVOID_Module
 	{
 		/*
 		 * Fields
 		 * */
 		protected VOID_HUD primaryHUD;
 
-		protected Rect leftHUDdefaultPos;
-		protected Rect rightHUDdefaultPos;
+		protected HUDWindow leftHUD;
+		protected HUDWindow rightHUD;
 
 		[AVOID_SaveValue("leftHUDPos")]
 		protected VOID_SaveValue<Rect> leftHUDPos;
 		[AVOID_SaveValue("rightHUDPos")]
 		protected VOID_SaveValue<Rect> rightHUDPos;
 
-		[AVOID_SaveValue("positionsLocked")]
-		protected VOID_SaveValue<bool> positionsLocked;
-
 		/*
 		 * Properties
 		 * */
-		public int ColorIndex
+		public override int ColorIndex
 		{
 			get
 			{
-				if (this.primaryHUD == null)
-				{
-					return 0;
-				}
-
-				return this.primaryHUD.ColorIndex;
+				if (this.primaryHUD != null)
+				{
+					return this.primaryHUD.ColorIndex;
+				}
+
+				return base.ColorIndex;
+			}
+			set
+			{
+				base.ColorIndex = value;
 			}
 		}
 
@@ -80,19 +81,23 @@
 
 			this.toggleActive = true;
 
-			this.leftHUDdefaultPos = new Rect(
+			this.leftHUD = new HUDWindow(this.leftHUDWindow, new Rect(
 				Screen.width * .5f - (float)GameSettings.UI_SIZE * .25f - 300f,
 				Screen.height - 200f,
-				300f, 90f
+				300f, 90f)
 			);
-			this.leftHUDPos = new Rect(this.leftHUDdefaultPos);
-
-			this.rightHUDdefaultPos = new Rect(
+			this.Windows.Add(this.leftHUD);
+
+			this.leftHUDPos = this.leftHUD.WindowPos;
+
+			this.rightHUD = new HUDWindow(this.rightHUDWindow, new Rect(
 				Screen.width * .5f + (float)GameSettings.UI_SIZE * .25f,
 				Screen.height - 200f,
-				300f, 90f
+				300f, 90f)
 			);
-			this.rightHUDPos = new Rect(this.rightHUDdefaultPos);
+			this.Windows.Add(this.rightHUD);
+
+			this.rightHUDPos = this.rightHUD.WindowPos;
 
 			this.positionsLocked = true;
 
@@ -229,32 +234,11 @@
 					}
 				}
 			}
-			else
-			{
-				if ((TimeWarp.WarpMode == TimeWarp.Modes.LOW) || (TimeWarp.CurrentRate <= TimeWarp.MaxPhysicsRate))
-				{
-					SimManager.RequestSimulation();
-				}
-
-				this.leftHUDPos.value = GUI.Window(
-					this.core.windowID,
-					this.leftHUDPos,
-					VOID_Tools.GetWindowHandler(this.leftHUDWindow),
-					GUIContent.none,
-					GUIStyle.none
-				);
-
-				if (VOID_Data.upcomingManeuverNodes > 0)
-				{
-					this.rightHUDPos.value = GUI.Window(
-						this.core.windowID,
-						this.rightHUDPos,
-						VOID_Tools.GetWindowHandler(this.rightHUDWindow),
-						GUIContent.none,
-						GUIStyle.none
-					);
-				}
-			}
+
+			base.DrawGUI();
+
+			this.leftHUDPos.value = this.leftHUD.WindowPos;
+			this.rightHUDPos.value = this.rightHUD.WindowPos;
 		}
 
 		public override void DrawConfigurables()

file:b/VOID_HUDModule.cs (new)
--- /dev/null
+++ b/VOID_HUDModule.cs
@@ -1,1 +1,167 @@
+// VOID
+//
+// VOID_HUDModule.cs
+//
+// Copyright © 2014, toadicus
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without modification,
+// are permitted provided that the following conditions are met:
+//
+// 1. Redistributions of source code must retain the above copyright notice,
+//    this list of conditions and the following disclaimer.
+//
+// 2. Redistributions in binary form must reproduce the above copyright notice,
+//    this list of conditions and the following disclaimer in the documentation and/or other
+//    materials provided with the distribution.
+//
+// 3. Neither the name of the copyright holder nor the names of its contributors may be used
+//    to endorse or promote products derived from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+// INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+using KerbalEngineer.VesselSimulator;
+using KSP;
+using System;
+using System.Collections.Generic;
+using System.Text;
+using ToadicusTools;
+using UnityEngine;
+
+namespace VOID
+{
+	public abstract class VOID_HUDModule : VOID_Module
+	{
+		[AVOID_SaveValue("colorIndex")]
+		protected VOID_SaveValue<int> _colorIndex;
+
+		protected List<Color> textColors;
+
+		[AVOID_SaveValue("positionsLocked")]
+		protected VOID_SaveValue<bool> positionsLocked;
+
+		public virtual int ColorIndex
+		{
+			get
+			{
+				return this._colorIndex;
+			}
+			set
+			{
+				if (this._colorIndex >= this.textColors.Count - 1)
+				{
+					this._colorIndex = 0;
+					return;
+				}
+
+				this._colorIndex = value;
+			}
+		}
+
+		public virtual List<HUDWindow> Windows
+		{
+			get;
+			protected set;
+		}
+
+		public VOID_HUDModule() : base()
+		{
+			this._colorIndex = 0;
+
+			this.textColors = new List<Color>();
+
+			this.textColors.Add(Color.green);
+			this.textColors.Add(Color.black);
+			this.textColors.Add(Color.white);
+			this.textColors.Add(Color.red);
+			this.textColors.Add(Color.blue);
+			this.textColors.Add(Color.yellow);
+			this.textColors.Add(Color.gray);
+			this.textColors.Add(Color.cyan);
+			this.textColors.Add(Color.magenta);
+
+			this.positionsLocked = true;
+
+			this.Windows = new List<HUDWindow>();
+		}
+
+		public override void DrawGUI()
+		{
+			VOID_Styles.labelHud.normal.textColor = textColors [ColorIndex];
+
+			GUI.skin = this.core.Skin;
+
+			if (HighLogic.LoadedSceneIsEditor ||
+				(TimeWarp.WarpMode == TimeWarp.Modes.LOW) || (TimeWarp.CurrentRate <= TimeWarp.MaxPhysicsRate)
+			)
+			{
+				SimManager.RequestSimulation();
+			}
+
+			foreach (HUDWindow window in this.Windows)
+			{
+				window.WindowPos = GUI.Window(
+					this.core.windowID,
+					window.WindowPos,
+					VOID_Tools.GetWindowHandler(window.WindowFunction),
+					GUIContent.none,
+					GUIStyle.none
+				);
+			}
+		}
+
+		public override void DrawConfigurables()
+		{
+			if (GUILayout.Button (string.Intern("Change HUD color"), GUILayout.ExpandWidth (false)))
+			{
+				++this.ColorIndex;
+			}
+
+			if (GUILayout.Button(string.Intern("Reset HUD Positions"), GUILayout.ExpandWidth(false)))
+			{
+				foreach (HUDWindow window in this.Windows)
+				{
+					window.WindowPos = new Rect(window.defaultWindowPos);
+				}
+			}
+
+			this.positionsLocked = GUILayout.Toggle(this.positionsLocked,
+				string.Intern("Lock HUD Positions"),
+				GUILayout.ExpandWidth(false));
+		}
+	}
+
+	public class HUDWindow
+	{
+		public readonly Rect defaultWindowPos;
+
+		public Action<int> WindowFunction
+		{
+			get;
+			private set;
+		}
+
+		public Rect WindowPos
+		{
+			get;
+			set;
+		}
+
+		private HUDWindow() {}
+
+		public HUDWindow(Action<int> windowFunc, Rect defaultPos)
+		{
+			this.WindowFunction = windowFunc;
+			this.defaultWindowPos = defaultPos;
+			this.WindowPos = new Rect(this.defaultWindowPos);
+		}
+	}
+}
+
+