ARFlightController: Fixed a logic error around vesselHasOptimalConnection and added a bunch of debug code.
ARFlightController: Fixed a logic error around vesselHasOptimalConnection and added a bunch of debug code.

--- a/ARConfiguration.cs
+++ b/ARConfiguration.cs
@@ -18,6 +18,22 @@
 
 		private IButton toolbarButton;
 
+		private System.Version runningVersion;
+
+		private KSP.IO.PluginConfiguration _config;
+		private KSP.IO.PluginConfiguration config
+		{
+			get
+			{
+				if (this._config == null)
+				{
+					this._config = KSP.IO.PluginConfiguration.CreateForType<AntennaRelay>();
+				}
+
+				return this._config;
+			}
+		}
+
 		public void Awake()
 		{
 			Tools.PostDebugMessage(this, "Waking up.");
@@ -30,8 +46,11 @@
 
 		public void OnGUI()
 		{
+			// Only runs once, if the Toolbar is available.
 			if (this.toolbarButton == null && ToolbarManager.ToolbarAvailable)
 			{
+				this.runningVersion = this.GetType().Assembly.GetName().Version;
+
 				Tools.PostDebugMessage(this, "Toolbar available; initializing button.");
 
 				this.toolbarButton = ToolbarManager.Instance.add("AntennaRange", "ARConfiguration");
@@ -44,14 +63,13 @@
 					this.showConfigWindow = !this.showConfigWindow;
 				};
 
-				var config = KSP.IO.PluginConfiguration.CreateForType<AntennaRelay>();
+				this.configWindowPos = this.LoadConfigValue("configWindowPos", this.configWindowPos);
+				AntennaRelay.requireLineOfSight = this.LoadConfigValue("requireLineOfSight", false);
+				ARFlightController.requireConnectionForControl =
+					this.LoadConfigValue("requireConnectionForControl", false);
+				ModuleLimitedDataTransmitter.fixedPowerCost = this.LoadConfigValue("fixedPowerCost", false);
 
-				config.load();
-
-				this.configWindowPos = config.GetValue<Rect>("configWindowPos", this.configWindowPos);
-				AntennaRelay.requireLineOfSight = config.GetValue<bool>("requireLineOfSight", false);
-
-				config.save();
+				Debug.Log(string.Format("{0} v{1} - ARonfiguration loaded!", this.GetType().Name, this.runningVersion));
 			}
 
 			if (this.showConfigWindow)
@@ -59,7 +77,7 @@
 				Rect configPos = GUILayout.Window(354163056,
 					this.configWindowPos,
 					this.ConfigWindow,
-					"AntennaRange Configuration",
+					string.Format("AntennaRange {0}.{1}", this.runningVersion.Major, this.runningVersion.Minor),
 					GUILayout.ExpandHeight(true),
 					GUILayout.ExpandWidth(true)
 				);
@@ -79,11 +97,38 @@
 			GUILayout.BeginVertical(GUILayout.ExpandHeight(true));
 
 			GUILayout.BeginHorizontal(GUILayout.ExpandWidth(true));
+
 			bool requireLineOfSight = GUILayout.Toggle(AntennaRelay.requireLineOfSight, "Require Line of Sight");
 			if (requireLineOfSight != AntennaRelay.requireLineOfSight)
 			{
 				AntennaRelay.requireLineOfSight = requireLineOfSight;
 				this.SaveConfigValue("requireLineOfSight", requireLineOfSight);
+			}
+
+			GUILayout.EndHorizontal();
+
+			GUILayout.BeginHorizontal(GUILayout.ExpandWidth(true));
+
+			bool requireConnectionForControl =
+				GUILayout.Toggle(
+					ARFlightController.requireConnectionForControl,
+					"Require Connection for Probe Control"
+				);
+			if (requireConnectionForControl != ARFlightController.requireConnectionForControl)
+			{
+				ARFlightController.requireConnectionForControl = requireConnectionForControl;
+				this.SaveConfigValue("requireConnectionForControl", requireConnectionForControl);
+			}
+
+			GUILayout.EndHorizontal();
+
+			GUILayout.BeginHorizontal();
+
+			bool fixedPowerCost = GUILayout.Toggle(ModuleLimitedDataTransmitter.fixedPowerCost, "Use fixed power cost");
+			if (fixedPowerCost != ModuleLimitedDataTransmitter.fixedPowerCost)
+			{
+				ModuleLimitedDataTransmitter.fixedPowerCost = fixedPowerCost;
+				this.SaveConfigValue("fixedPowerCost", fixedPowerCost);
 			}
 
 			GUILayout.EndHorizontal();
@@ -103,22 +148,18 @@
 
 		private T LoadConfigValue<T>(string key, T defaultValue)
 		{
-			var config = KSP.IO.PluginConfiguration.CreateForType<AntennaRelay>();
-
-			config.load();
+			this.config.load();
 
 			return config.GetValue(key, defaultValue);
 		}
 
 		private void SaveConfigValue<T>(string key, T value)
 		{
-			var config = KSP.IO.PluginConfiguration.CreateForType<AntennaRelay>();
+			this.config.load();
 
-			config.load();
+			this.config.SetValue(key, value);
 
-			config.SetValue(key, value);
-
-			config.save();
+			this.config.save();
 		}
 	}
 }

--- /dev/null
+++ b/ARFlightController.cs
@@ -1,1 +1,267 @@
-
+// AntennaRange
+//
+// ARFlightController.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 KSP;
+using System;
+using System.Collections.Generic;
+using ToadicusTools;
+using UnityEngine;
+
+namespace AntennaRange
+{
+	[KSPAddon(KSPAddon.Startup.Flight, false)]
+	public class ARFlightController : MonoBehaviour
+	{
+		#region Static Members
+		public static bool requireConnectionForControl;
+		#endregion
+
+		#region Fields
+		protected Dictionary<ConnectionStatus, string> connectionTextures;
+
+		protected IButton toolbarButton;
+		#endregion
+
+		#region Properties
+		public ConnectionStatus currentConnectionStatus
+		{
+			get;
+			protected set;
+		}
+
+		protected string currentConnectionTexture
+		{
+			get
+			{
+				return this.connectionTextures[this.currentConnectionStatus];
+			}
+		}
+
+		public ControlTypes currentControlLock
+		{
+			get
+			{
+				if (this.lockID == string.Empty)
+				{
+					return ControlTypes.None;
+				}
+
+				return InputLockManager.GetControlLock(this.lockID);
+			}
+		}
+
+		public string lockID
+		{
+			get;
+			protected set;
+		}
+
+		public ControlTypes lockSet
+		{
+			get
+			{
+				return ControlTypes.ALL_SHIP_CONTROLS;
+			}
+		}
+
+		public Vessel vessel
+		{
+			get
+			{
+				if (FlightGlobals.ready && FlightGlobals.ActiveVessel != null)
+				{
+					return FlightGlobals.ActiveVessel;
+				}
+
+				return null;
+			}
+		}
+		#endregion
+
+		#region MonoBehaviour LifeCycle
+		protected void Awake()
+		{
+			this.lockID = "ARConnectionRequired";
+
+			if (ToolbarManager.ToolbarAvailable)
+			{
+				this.connectionTextures = new Dictionary<ConnectionStatus, string>();
+
+				this.connectionTextures[ConnectionStatus.None] = "AntennaRange/Textures/toolbarIconNoConnection";
+				this.connectionTextures[ConnectionStatus.Suboptimal] = "AntennaRange/Textures/toolbarIconSubOptimal";
+				this.connectionTextures[ConnectionStatus.Optimal] = "AntennaRange/Textures/toolbarIcon";
+
+				this.toolbarButton = ToolbarManager.Instance.add("AntennaRange", "ARConnectionStatus");
+
+				this.toolbarButton.TexturePath = this.connectionTextures[ConnectionStatus.None];
+				this.toolbarButton.Text = "AntennaRange";
+				this.toolbarButton.Visibility = new GameScenesVisibility(GameScenes.FLIGHT);
+				this.toolbarButton.Enabled = false;
+			}
+
+			GameEvents.onGameSceneLoadRequested.Add(this.onSceneChangeRequested);
+			GameEvents.onVesselChange.Add(this.onVesselChange);
+		}
+
+		protected void FixedUpdate()
+		{
+			Tools.DebugLogger log = Tools.DebugLogger.New(this);
+
+			// If we are requiring a connection for control, the vessel does not have any adequately staffed pods,
+			// and the vessel does not have any connected relays...
+			if (
+				HighLogic.LoadedSceneIsFlight &&
+				requireConnectionForControl &&
+				this.vessel != null &&
+				this.vessel.vesselType != VesselType.EVA &&
+				!this.vessel.hasCrewCommand() &&
+				!this.vessel.HasConnectedRelay())
+			{
+				// ...and if the controls are not currently locked...
+				if (currentControlLock == ControlTypes.None)
+				{
+					// ...lock the controls.
+					InputLockManager.SetControlLock(this.lockSet, this.lockID);
+				}
+			}
+			// ...otherwise, if the controls are locked...
+			else if (currentControlLock != ControlTypes.None)
+			{
+				// ...unlock the controls.
+				InputLockManager.RemoveControlLock(this.lockID);
+			}
+
+			if (this.toolbarButton != null && HighLogic.LoadedSceneIsFlight && FlightGlobals.ActiveVessel != null)
+			{
+				log.Append("Checking vessel relay status.\n");
+
+				List<ModuleLimitedDataTransmitter> relays =
+					FlightGlobals.ActiveVessel.getModulesOfType<ModuleLimitedDataTransmitter>();
+
+				log.AppendFormat("\t...found {0} relays\n", relays.Count);
+
+				bool vesselCanTransmit = false;
+				bool vesselHasOptimalRelay = false;
+
+				foreach (ModuleLimitedDataTransmitter relay in relays)
+				{
+					log.AppendFormat("\tvesselCanTransmit: {0}, vesselHasOptimalRelay: {1}\n",
+						vesselCanTransmit, vesselHasOptimalRelay);
+
+					log.AppendFormat("\tChecking relay {0}\n" +
+						"\t\tCanTransmit: {1}, transmitDistance: {2}, nominalRange: {3}\n",
+						relay,
+						relay.CanTransmit(),
+						relay.transmitDistance,
+						relay.nominalRange
+					);
+
+					bool relayCanTransmit = relay.CanTransmit();
+
+					if (!vesselCanTransmit && relayCanTransmit)
+					{
+						vesselCanTransmit = true;
+					}
+
+					if (!vesselHasOptimalRelay &&
+						relayCanTransmit &&
+						relay.transmitDistance <= (double)relay.nominalRange)
+					{
+						vesselHasOptimalRelay = true;
+					}
+
+					if (vesselCanTransmit && vesselHasOptimalRelay)
+					{
+						break;
+					}
+				}
+
+				log.AppendFormat("Done checking.  vesselCanTransmit: {0}, vesselHasOptimalRelay: {1}\n",
+					vesselCanTransmit, vesselHasOptimalRelay);
+
+				if (vesselHasOptimalRelay)
+				{
+					this.currentConnectionStatus = ConnectionStatus.Optimal;
+				}
+				else if (vesselCanTransmit)
+				{
+					this.currentConnectionStatus = ConnectionStatus.Suboptimal;
+				}
+				else
+				{
+					this.currentConnectionStatus = ConnectionStatus.None;
+				}
+
+				log.AppendFormat("currentConnectionStatus: {0}, setting texture to {1}",
+					this.currentConnectionStatus, this.currentConnectionTexture);
+
+				this.toolbarButton.TexturePath = this.currentConnectionTexture;
+			}
+
+			log.Print();
+		}
+
+		protected void Destroy()
+		{
+			InputLockManager.RemoveControlLock(this.lockID);
+
+			if (this.toolbarButton != null)
+			{
+				this.toolbarButton.Destroy();
+			}
+
+			GameEvents.onGameSceneLoadRequested.Remove(this.onSceneChangeRequested);
+			GameEvents.onVesselChange.Remove(this.onVesselChange);
+		}
+		#endregion
+
+		#region Event Handlers
+		protected void onSceneChangeRequested(GameScenes scene)
+		{
+			if (scene != GameScenes.FLIGHT)
+			{
+				MonoBehaviour.Destroy(this);
+			}
+		}
+
+		protected void onVesselChange(Vessel vessel)
+		{
+			InputLockManager.RemoveControlLock(this.lockID);
+		}
+		#endregion
+
+		public enum ConnectionStatus
+		{
+			None,
+			Suboptimal,
+			Optimal
+		}
+	}
+}
+
+

--- a/AntennaRange.csproj
+++ b/AntennaRange.csproj
@@ -9,7 +9,7 @@
     <OutputType>Library</OutputType>
     <RootNamespace>AntennaRange</RootNamespace>
     <AssemblyName>AntennaRange</AssemblyName>
-    <ReleaseVersion>0.6.2</ReleaseVersion>
+    <ReleaseVersion>1.1</ReleaseVersion>
     <SynchReleaseVersion>false</SynchReleaseVersion>
     <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
     <UseMSBuildEngine>False</UseMSBuildEngine>
@@ -77,41 +77,15 @@
     <Compile Include="AntennaRelay.cs" />
     <Compile Include="ProtoAntennaRelay.cs" />
     <Compile Include="RelayDatabase.cs" />
-    <Compile Include="..\ToadicusTools\VesselExtensions.cs">
-      <Link>ToadicusTools\VesselExtensions.cs</Link>
-    </Compile>
-    <Compile Include="..\ToadicusTools\Tools.cs">
-      <Link>ToadicusTools\Tools.cs</Link>
-    </Compile>
-    <Compile Include="..\ToadicusTools\MuMech_Tools.cs">
-      <Link>ToadicusTools\MuMech_Tools.cs</Link>
-    </Compile>
     <Compile Include="RelayExtensions.cs" />
-    <Compile Include="..\ToadicusTools\ModuleDBWrapper.cs">
-      <Link>ToadicusTools\ModuleDBWrapper.cs</Link>
-    </Compile>
-    <Compile Include="..\ToadicusTools\PrefabDBWrapper.cs">
-      <Link>ToadicusTools\PrefabDBWrapper.cs</Link>
-    </Compile>
-    <Compile Include="..\ToadicusTools\IModuleDB.cs">
-      <Link>ToadicusTools\IModuleDB.cs</Link>
-    </Compile>
     <Compile Include="ARConfiguration.cs" />
-    <Compile Include="..\ToadicusTools\Wrapper\ToolbarWrapper.cs">
-      <Link>ToadicusTools\ToolbarWrapper.cs</Link>
-    </Compile>
-    <Compile Include="..\ToadicusTools\WindowTools.cs">
-      <Link>WindowTools.cs</Link>
-    </Compile>
+    <Compile Include="ARFlightController.cs" />
   </ItemGroup>
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
   <ItemGroup>
     <None Include="AntennaRange.cfg">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </None>
-  </ItemGroup>
-  <ItemGroup>
-    <Folder Include="ToadicusTools\" />
   </ItemGroup>
   <ItemGroup>
     <Reference Include="Assembly-CSharp">
@@ -127,4 +101,10 @@
       <Private>False</Private>
     </Reference>
   </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\ToadicusTools\ToadicusTools.csproj">
+      <Project>{D48A5542-6655-4149-BC27-B27DF0466F1C}</Project>
+      <Name>ToadicusTools</Name>
+    </ProjectReference>
+  </ItemGroup>
 </Project>

--- a/AntennaRelay.cs
+++ b/AntennaRelay.cs
@@ -40,6 +40,8 @@
 		// We don't have a Bard, so we'll hide Kerbin here.
 		protected CelestialBody Kerbin;
 
+		protected CelestialBody _firstOccludingBody;
+
 		protected IAntennaRelay _nearestRelayCache;
 		protected IAntennaRelay moduleRef;
 
@@ -82,6 +84,18 @@
 		}
 
 		/// <summary>
+		/// Gets the first occluding body.
+		/// </summary>
+		/// <value>The first occluding body.</value>
+		public CelestialBody firstOccludingBody
+		{
+			get
+			{
+				return this._firstOccludingBody;
+			}
+		}
+
+		/// <summary>
 		/// Gets the transmit distance.
 		/// </summary>
 		/// <value>The transmit distance.</value>
@@ -134,7 +148,11 @@
 		{
 			if (
 				this.transmitDistance > this.maxTransmitDistance ||
-				(requireLineOfSight && this.nearestRelay == null && !this.vessel.hasLineOfSightTo(this.Kerbin))
+				(
+					requireLineOfSight &&
+					this.nearestRelay == null &&
+					!this.vessel.hasLineOfSightTo(this.Kerbin, out this._firstOccludingBody)
+				)
 			)
 			{
 				return false;
@@ -170,6 +188,8 @@
 				this,
 				this.vessel.id
 			));
+
+			this._firstOccludingBody = null;
 
 			// Set this vessel as checked, so that we don't check it again.
 			RelayDatabase.Instance.CheckedVesselsTable[vessel.id] = true;
@@ -211,7 +231,7 @@
 				}
 
 				// Skip vessels to which we do not have line of sight.
-				if (requireLineOfSight && !this.vessel.hasLineOfSightTo(potentialVessel))
+				if (requireLineOfSight && !this.vessel.hasLineOfSightTo(potentialVessel, out this._firstOccludingBody))
 				{
 					Tools.PostDebugMessage(
 						this,

--- a/ModuleLimitedDataTransmitter.cs
+++ b/ModuleLimitedDataTransmitter.cs
@@ -54,6 +54,10 @@
 	 * */
 	public class ModuleLimitedDataTransmitter : ModuleDataTransmitter, IScienceDataTransmitter, IAntennaRelay
 	{
+		// If true, use a fixed power cost at the configured value and degrade data rates instead of increasing power
+		// requirements.
+		public static bool fixedPowerCost;
+
 		// Stores the packetResourceCost as defined in the .cfg file.
 		protected float _basepacketResourceCost;
 
@@ -74,6 +78,9 @@
 		[KSPField(isPersistant = false)]
 		public float nominalRange;
 
+		[KSPField(isPersistant = false, guiActive = true, guiName = "Relay")]
+		public string UIrelayStatus;
+
 		[KSPField(isPersistant = false, guiActive = true, guiName = "Transmission Distance")]
 		public string UItransmitDistance;
 
@@ -94,6 +101,16 @@
 		// The multipler on packetSize that defines the maximum data bandwidth of the antenna.
 		[KSPField(isPersistant = false)]
 		public float maxDataFactor;
+
+		[KSPField(
+			isPersistant = true,
+			guiName = "Packet Throttle",
+			guiUnits = "%",
+			guiActive = true,
+			guiActiveEditor = false
+		)]
+		[UI_FloatRange(maxValue = 100f, minValue = 2.5f, stepIncrement = 2.5f)]
+		public float packetThrottle;
 
 		protected bool actionUIUpdate;
 
@@ -207,6 +224,7 @@
 		public ModuleLimitedDataTransmitter () : base()
 		{
 			this.ErrorMsg = new ScreenMessage("", 4f, false, ScreenMessageStyle.UPPER_LEFT);
+			this.packetThrottle = 100f;
 		}
 
 		// At least once, when the module starts with a state on the launch pad or later, go find Kerbin.
@@ -280,7 +298,7 @@
 		// transmission fails (see CanTransmit).
 		protected void PreTransmit_SetPacketResourceCost()
 		{
-			if (this.transmitDistance <= this.nominalRange)
+			if (fixedPowerCost || this.transmitDistance <= this.nominalRange)
 			{
 				base.packetResourceCost = this._basepacketResourceCost;
 			}
@@ -289,13 +307,15 @@
 				base.packetResourceCost = this._basepacketResourceCost
 					* (float)Math.Pow (this.transmitDistance / this.nominalRange, 2);
 			}
+
+			base.packetResourceCost *= this.packetThrottle / 100f;
 		}
 
 		// Before transmission, set packetSize.  Per above, packet size increases with the inverse square of
 		// distance.  packetSize maxes out at _basepacketSize * maxDataFactor.
 		protected void PreTransmit_SetPacketSize()
 		{
-			if (this.transmitDistance >= this.nominalRange)
+			if (!fixedPowerCost && this.transmitDistance >= this.nominalRange)
 			{
 				base.packetSize = this._basepacketSize;
 			}
@@ -305,6 +325,8 @@
 					this._basepacketSize * (float)Math.Pow (this.nominalRange / this.transmitDistance, 2),
 					this._basepacketSize * this.maxDataFactor);
 			}
+
+			base.packetSize *= this.packetThrottle / 100f;
 		}
 
 		// Override ModuleDataTransmitter.GetInfo to add nominal and maximum range to the VAB description.
@@ -424,9 +446,27 @@
 		{
 			if (this.actionUIUpdate)
 			{
-				this.UItransmitDistance = Tools.MuMech_ToSI(this.transmitDistance) + "m";
-				this.UIpacketSize = this.CanTransmit() ? Tools.MuMech_ToSI(this.DataRate) + "MiT" : "N/A";
-				this.UIpacketCost = this.CanTransmit() ? Tools.MuMech_ToSI(this.DataResourceCost) + "E" : "N/A";
+				if (this.CanTransmit())
+				{
+					this.UIrelayStatus = string.Intern("Connected");
+					this.UItransmitDistance = Tools.MuMech_ToSI(this.transmitDistance) + "m";
+					this.UIpacketSize = Tools.MuMech_ToSI(this.DataRate) + "MiT";
+					this.UIpacketCost = Tools.MuMech_ToSI(this.DataResourceCost) + "E";
+				}
+				else
+				{
+					if (this.relay.firstOccludingBody == null)
+					{
+						this.UIrelayStatus = string.Intern("Out of range");
+					}
+					else
+					{
+						this.UIrelayStatus = string.Format("Blocked by {0}", this.relay.firstOccludingBody.bodyName);
+					}
+					this.UImaxTransmitDistance = "N/A";
+					this.UIpacketSize = "N/A";
+					this.UIpacketCost = "N/A";
+				}
 			}
 		}
 

--- a/Properties/AssemblyInfo.cs
+++ b/Properties/AssemblyInfo.cs
@@ -29,6 +29,8 @@
 using System.Reflection;
 using System.Runtime.CompilerServices;
 
+[assembly: KSPAssemblyDependency("ToadicusTools", 0, 0)]
+
 // Information about this assembly is defined by the following attributes.
 // Change them to the values specific to your project.
 [assembly: AssemblyTitle("AntennaRange")]
@@ -37,10 +39,9 @@
 // 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("1.0.0.*")]
+[assembly: AssemblyVersion("1.2.*")]
 // 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)]
 //[assembly: AssemblyKeyFile("")]
 
-

--- a/RelayExtensions.cs
+++ b/RelayExtensions.cs
@@ -76,6 +76,24 @@
 		{
 			return RelayDatabase.Instance[vessel].Values.ToList();
 		}
+
+		/// <summary>
+		/// Determines if the specified vessel has a connected relay.
+		/// </summary>
+		/// <returns><c>true</c> if the specified vessel has a connected relay; otherwise, <c>false</c>.</returns>
+		/// <param name="vessel"></param>
+		public static bool HasConnectedRelay(this Vessel vessel)
+		{
+			foreach (IAntennaRelay relay in RelayDatabase.Instance[vessel].Values)
+			{
+				if (relay.CanTransmit())
+				{
+					return true;
+				}
+			}
+
+			return false;
+		}
 	}
 }
 

file:b/toolbarIcon.xcf (new)
 Binary files /dev/null and b/toolbarIcon.xcf differ