RelayExtensions: Added Vessel.HasConnectedRelay.
RelayExtensions: Added Vessel.HasConnectedRelay.

  // AntennaRange © 2014 toadicus
  //
  // This work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. To view a
  // copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/
 
  using KSP;
  using System;
  using ToadicusTools;
  using UnityEngine;
 
  [assembly: KSPAssemblyDependency("ToadicusTools", 0, 0)]
 
  namespace AntennaRange
  {
  [KSPAddon(KSPAddon.Startup.SpaceCentre, false)]
  public class ARConfiguration : MonoBehaviour
  {
  private bool showConfigWindow;
  private Rect configWindowPos;
 
  private IButton toolbarButton;
 
  public void Awake()
  {
  Tools.PostDebugMessage(this, "Waking up.");
 
  this.showConfigWindow = false;
  this.configWindowPos = new Rect(Screen.width / 4, Screen.height / 2, 180, 15);
 
  Tools.PostDebugMessage(this, "Awake.");
  }
 
  public void OnGUI()
  {
  if (this.toolbarButton == null && ToolbarManager.ToolbarAvailable)
  {
  Tools.PostDebugMessage(this, "Toolbar available; initializing button.");
 
  this.toolbarButton = ToolbarManager.Instance.add("AntennaRange", "ARConfiguration");
  this.toolbarButton.Visibility = new GameScenesVisibility(GameScenes.SPACECENTER);
  this.toolbarButton.Text = "AR";
  this.toolbarButton.TexturePath = "AntennaRange/Textures/toolbarIcon";
  this.toolbarButton.TextColor = (Color)XKCDColors.Amethyst;
  this.toolbarButton.OnClick += delegate(ClickEvent e)
  {
  this.showConfigWindow = !this.showConfigWindow;
  };
 
  var config = KSP.IO.PluginConfiguration.CreateForType<AntennaRelay>();
 
  config.load();
 
  this.configWindowPos = config.GetValue<Rect>("configWindowPos", this.configWindowPos);
  AntennaRelay.requireLineOfSight = config.GetValue<bool>("requireLineOfSight", false);
 
  config.save();
  }
 
  if (this.showConfigWindow)
  {
  Rect configPos = GUILayout.Window(354163056,
  this.configWindowPos,
  this.ConfigWindow,
  "AntennaRange Configuration",
  GUILayout.ExpandHeight(true),
  GUILayout.ExpandWidth(true)
  );
 
  configPos = Tools.ClampRectToScreen(configPos, 20);
 
  if (configPos != this.configWindowPos)
  {
  this.configWindowPos = configPos;
  this.SaveConfigValue("configWindowPos", this.configWindowPos);
  }
  }
  }
 
  public void ConfigWindow(int _)
  {
  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.EndVertical();
 
  GUI.DragWindow();
  }
 
  public void Destroy()
  {
  if (this.toolbarButton != null)
  {
  this.toolbarButton.Destroy();
  }
  }
 
  private T LoadConfigValue<T>(string key, T defaultValue)
  {
  var config = KSP.IO.PluginConfiguration.CreateForType<AntennaRelay>();
 
  config.load();
 
  return config.GetValue(key, defaultValue);
  }
 
  private void SaveConfigValue<T>(string key, T value)
  {
  var config = KSP.IO.PluginConfiguration.CreateForType<AntennaRelay>();
 
  config.load();
 
  config.SetValue(key, value);
 
  config.save();
  }
  }
  }
 
  // 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 System;
 
  namespace AntennaRange
  {
  public class ARFlightController
  {
  public ARFlightController()
  {
  }
  }
  }
 
 
// // AntennaRange
// AntennaRange © 2013 toadicus //
// // AntennaRange.cfg
// This work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. To view a //
// copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/ // Copyright © 2014, toadicus
// // All rights reserved.
// This software uses the ModuleManager library © 2013 ialdabaoth, used under a Creative Commons Attribution-ShareAlike //
// 3.0 Uported License. // Redistribution and use in source and binary forms, with or without modification,
// // are permitted provided that the following conditions are met:
// Specifications: //
// nominalRange: The distance from Kerbin at which the antenna will perform exactly as prescribed by packetResourceCost // 1. Redistributions of source code must retain the above copyright notice,
// and packetSize. // this list of conditions and the following disclaimer.
// maxPowerFactor: The multiplier on packetResourceCost that defines the maximum power output of the antenna. When the //
// power cost exceeds packetResourceCost * maxPowerFactor, transmission will fail. // 2. Redistributions in binary form must reproduce the above copyright notice,
// maxDataFactor: The multipler on packetSize that defines the maximum data bandwidth of the antenna. // this list of conditions and the following disclaimer in the documentation and/or other
// // materials provided with the distribution.
  //
@PART[longAntenna] // 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.
@MODULE[ModuleDataTransmitter] //
{ // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
@name = ModuleLimitedDataTransmitter // INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
nominalRange = 1500000 // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
maxPowerFactor = 8 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
maxDataFactor = 4 // 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.
  //
@PART[mediumDishAntenna] // This software uses the ModuleManager library © 2013 ialdabaoth, used under a Creative Commons Attribution-ShareAlike
{ // 3.0 Uported License.
@MODULE[ModuleDataTransmitter] //
{ // Specifications:
@name = ModuleLimitedDataTransmitter // nominalRange: The distance from Kerbin at which the antenna will perform exactly as prescribed by
nominalRange = 30000000 // packetResourceCost and packetSize.
maxPowerFactor = 8 // maxPowerFactor: The multiplier on packetResourceCost that defines the maximum power output of the antenna. When the
maxDataFactor = 4 // power cost exceeds packetResourceCost * maxPowerFactor, transmission will fail.
} // maxDataFactor: The multipler on packetSize that defines the maximum data bandwidth of the antenna.
} //
   
@PART[commDish]  
{  
@MODULE[ModuleDataTransmitter]  
{  
@name = ModuleLimitedDataTransmitter  
nominalRange = 80000000000  
maxPowerFactor = 8  
maxDataFactor = 4  
}  
}  
   
  @PART[longAntenna]:FOR[AntennaRange]:NEEDS[!RemoteTech2]
  {
  @MODULE[ModuleDataTransmitter]
  {
  @name = ModuleLimitedDataTransmitter
  nominalRange = 1500000
  maxPowerFactor = 8
  maxDataFactor = 4
  }
  }
   
  @PART[mediumDishAntenna]:FOR[AntennaRange]:NEEDS[!RemoteTech2]
  {
  @MODULE[ModuleDataTransmitter]
  {
  @name = ModuleLimitedDataTransmitter
  nominalRange = 30000000
  maxPowerFactor = 8
  maxDataFactor = 4
  }
  }
   
  @PART[commDish]:FOR[AntennaRange]:NEEDS[!RemoteTech2]
  {
  @MODULE[ModuleDataTransmitter]
  {
  @name = ModuleLimitedDataTransmitter
  nominalRange = 80000000000
  maxPowerFactor = 8
  maxDataFactor = 4
  }
  }
   
file:a/AntennaRange.cs (deleted)
/*  
* AntennaRange © 2013 toadicus  
*  
* AntennaRange provides incentive and requirements for the use of the various antenna parts.  
* Nominally, the breakdown is as follows:  
*  
* Communotron 16 - Suitable up to Kerbalsynchronous Orbit  
* Comms DTS-M1 - Suitable throughout the Kerbin subsystem  
* Communotron 88-88 - Suitable throughout the Kerbol system.  
*  
* This work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. To view a  
* copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/  
*  
* This software uses the ModuleManager library © 2013 ialdabaoth, used under a Creative Commons Attribution-ShareAlike 3.0 Uported License.  
*  
*/  
 
using System;  
using System.Collections.Generic;  
using KSP;  
 
namespace AntennaRange  
{  
/*  
* ModuleLimitedDataTransmitter is designed as a drop-in replacement for ModuleDataTransmitter, and handles range-  
* finding, power scaling, and data scaling for antennas during science transmission. Its functionality varies with  
* three tunables: nominalRange, maxPowerFactor, and maxDataFactor, set in .cfg files.  
*  
* In general, the scaling functions assume the following relation:  
*  
* D² α P/R,  
*  
* where D is the total transmission distance, P is the transmission power, and R is the data rate.  
*  
* */  
public class ModuleLimitedDataTransmitter : ModuleDataTransmitter, IScienceDataTransmitter  
{  
// Stores the packetResourceCost as defined in the .cfg file.  
protected float _basepacketResourceCost;  
 
// Stores the packetSize as defined in the .cfg file.  
protected float _basepacketSize;  
 
// We don't have a Bard, so we're hiding Kerbin here.  
protected CelestialBody _Kerbin;  
 
// Returns the current distance to the center of Kerbin, which is totally where the Kerbals keep their radioes.  
protected double transmitDistance  
{  
get  
{  
Vector3d KerbinPos = this._Kerbin.position;  
Vector3d ActivePos = base.vessel.GetWorldPos3D();  
 
return (ActivePos - KerbinPos).magnitude;  
}  
}  
 
// Returns the maximum distance this module can transmit  
public double maxTransmitDistance  
{  
get  
{  
return Math.Sqrt (this.maxPowerFactor) * this.nominalRange;  
}  
}  
 
// The distance from Kerbin at which the antenna will perform exactly as prescribed by packetResourceCost  
// and packetSize.  
[KSPField(isPersistant = false)]  
public double nominalRange = 1500000d;  
 
// The multiplier on packetResourceCost that defines the maximum power output of the antenna. When the power  
// cost exceeds packetResourceCost * maxPowerFactor, transmission will fail.  
[KSPField(isPersistant = false)]  
public float maxPowerFactor = 8f;  
 
// The multipler on packetSize that defines the maximum data bandwidth of the antenna.  
[KSPField(isPersistant = false)]  
public float maxDataFactor = 4f;  
 
// Override ModuleDataTransmitter.packetSize. Below the nominal range, scales up packetSize to  
// packetSize * maxDataFactor  
[KSPField(isPersistant = false)]  
public new float packetSize  
{  
get  
{  
if (this.transmitDistance >= this.nominalRange)  
{  
return this._basepacketSize;  
}  
else  
{  
// From above, data rate increases with the inverse square of the distance.  
return Math.Min(this._basepacketSize * (float)Math.Pow(this.nominalRange / this.transmitDistance, 2),  
this._basepacketSize * this.maxDataFactor);  
}  
}  
set  
{  
this._basepacketSize = value;  
}  
 
}  
 
// Override ModuleDataTransmitter.packetResourceCost. Above the nominal range, scales up packetResourceCost to  
// packetResourceCost * maxPowerFactor.  
[KSPField(isPersistant = false)]  
public new float packetResourceCost  
{  
get  
{  
if (this.transmitDistance <= this.nominalRange)  
{  
return this._basepacketResourceCost;  
}  
else  
{  
// From above, power increases with the square of the distance.  
return this._basepacketResourceCost * (float)Math.Pow (this.transmitDistance / this.nominalRange, 2);  
}  
}  
set  
{  
this._basepacketResourceCost = value;  
}  
 
}  
 
// Build ALL the objects.  
public ModuleLimitedDataTransmitter () : base()  
{  
// Go fetch Kerbin, because it is tricksy and hides from us.  
List<CelestialBody> bodies = FlightGlobals.Bodies;  
 
foreach (CelestialBody body in bodies)  
{  
if (body.name == "Kerbin")  
{  
this._Kerbin = body;  
break;  
}  
}  
}  
 
// Post an error in the communication messages describing the reason transmission has failed. Currently there  
// is only one reason for this.  
protected void PostCannotTransmitError()  
{  
string ErrorText = String.Format ("Unable to transmit: out of range! Maximum range = {0}; Current range = {1}.", this.maxTransmitDistance, this.transmitDistance);  
ScreenMessages.PostScreenMessage (new ScreenMessage (ErrorText, 4f, ScreenMessageStyle.UPPER_LEFT));  
}  
 
// Override ModuleDataTransmitter.GetInfo to add nominal and maximum range to the VAB description.  
public override string GetInfo()  
{  
string text = base.GetInfo();  
text += "Nominal Range: " + this.nominalRange.ToString() + "\n";  
text += "Maximum Range: " + this.maxTransmitDistance.ToString() + "\n";  
return text;  
}  
 
// Override ModuleDataTransmitter.CanTransmit to return false when transmission is not possible.  
public new bool CanTransmit()  
{  
if (this.transmitDistance > this.maxTransmitDistance)  
{  
return false;  
}  
return true;  
}  
 
// Override ModuleDataTransmitter.TransmitData to check against CanTransmit and fail out when CanTransmit  
// returns false.  
public new void TransmitData(List<ScienceData> dataQueue)  
{  
if (this.CanTransmit())  
{  
base.TransmitData(dataQueue);  
}  
else  
{  
this.PostCannotTransmitError ();  
}  
}  
 
// Override ModuleDataTransmitter.StartTransmission to check against CanTransmit and fail out when CanTransmit  
// returns false.  
public new void StartTransmission()  
{  
if (this.CanTransmit())  
{  
base.StartTransmission();  
}  
else  
{  
this.PostCannotTransmitError ();  
}  
}  
}  
}  
 
 
  <?xml version="1.0" encoding="utf-8"?>
  <Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
  <PropertyGroup>
  <Configuration Condition=" '$(Configuration)' == '' ">Debug_win</Configuration>
  <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
  <ProductVersion>8.0.30703</ProductVersion>
  <SchemaVersion>2.0</SchemaVersion>
  <ProjectGuid>{B36F2C11-962E-4A75-9F41-61AD56D11493}</ProjectGuid>
  <OutputType>Library</OutputType>
  <RootNamespace>AntennaRange</RootNamespace>
  <AssemblyName>AntennaRange</AssemblyName>
  <ReleaseVersion>1.1</ReleaseVersion>
  <SynchReleaseVersion>false</SynchReleaseVersion>
  <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
  </PropertyGroup>
  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug_win|AnyCPU' ">
  <DebugSymbols>true</DebugSymbols>
  <DebugType>full</DebugType>
  <Optimize>false</Optimize>
  <OutputPath>bin\Debug</OutputPath>
  <DefineConstants>DEBUG;TRACE;</DefineConstants>
  <ErrorReport>prompt</ErrorReport>
  <WarningLevel>4</WarningLevel>
  <ConsolePause>false</ConsolePause>
  <CustomCommands>
  <CustomCommands>
  <Command type="AfterBuild" command="xcopy /y ${ProjectDir}\AntennaRange.cfg C:\Users\andy\Games\KSP_win\GameData\AntennaRange\" />
  <Command type="AfterBuild" command="xcopy /y ${TargetFile} C:\Users\andy\Games\KSP_win\GameData\AntennaRange\" />
  </CustomCommands>
  </CustomCommands>
  </PropertyGroup>
  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release_win|AnyCPU' ">
  <Optimize>true</Optimize>
  <OutputPath>bin\Release</OutputPath>
  <ErrorReport>prompt</ErrorReport>
  <WarningLevel>4</WarningLevel>
  <ConsolePause>false</ConsolePause>
  <CustomCommands>
  <CustomCommands>
  <Command type="AfterBuild" command="xcopy /y ${ProjectDir}\AntennaRange.cfg C:\Users\andy\Games\KSP_win\GameData\AntennaRange\" />
  <Command type="AfterBuild" command="xcopy /y ${TargetFile} C:\Users\andy\Games\KSP_win\GameData\AntennaRange\" />
  </CustomCommands>
  </CustomCommands>
  </PropertyGroup>
  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug_linux|AnyCPU' ">
  <DebugSymbols>true</DebugSymbols>
  <DebugType>full</DebugType>
  <Optimize>false</Optimize>
  <OutputPath>bin\Debug</OutputPath>
  <DefineConstants>DEBUG;TRACE;</DefineConstants>
  <ErrorReport>prompt</ErrorReport>
  <WarningLevel>4</WarningLevel>
  <ConsolePause>false</ConsolePause>
  <CustomCommands>
  <CustomCommands>
  <Command type="AfterBuild" command="cp -afv ${TargetFile} ${ProjectDir}/${ProjectName}.cfg /opt/games/KSP_linux/GameData/${ProjectName}/" />
  </CustomCommands>
  </CustomCommands>
  </PropertyGroup>
  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release_linux|AnyCPU' ">
  <Optimize>true</Optimize>
  <OutputPath>bin\Release</OutputPath>
  <ErrorReport>prompt</ErrorReport>
  <WarningLevel>4</WarningLevel>
  <CustomCommands>
  <CustomCommands>
  <Command type="AfterBuild" command="cp -afv ${TargetFile} ${ProjectDir}/${ProjectName}.cfg /opt/games/KSP_linux/GameData/${ProjectName}/" />
  </CustomCommands>
  </CustomCommands>
  <ConsolePause>false</ConsolePause>
  </PropertyGroup>
  <ItemGroup>
  <Compile Include="Properties\AssemblyInfo.cs" />
  <Compile Include="IAntennaRelay.cs" />
  <Compile Include="ModuleLimitedDataTransmitter.cs" />
  <Compile Include="AntennaRelay.cs" />
  <Compile Include="ProtoAntennaRelay.cs" />
  <Compile Include="RelayDatabase.cs" />
  <Compile Include="RelayExtensions.cs" />
  <Compile Include="ARConfiguration.cs" />
  <Compile Include="ARFlightController.cs" />
  </ItemGroup>
  <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
  <ItemGroup>
  <None Include="AntennaRange.cfg">
  <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
  </None>
  </ItemGroup>
  <ItemGroup>
  <ProjectReference Include="..\ToadicusTools\ToadicusTools.csproj">
  <Project>{D48A5542-6655-4149-BC27-B27DF0466F1C}</Project>
  <Name>ToadicusTools</Name>
  </ProjectReference>
  </ItemGroup>
  <ItemGroup>
  <Reference Include="Assembly-CSharp">
  <HintPath>..\_KSPAssemblies\Assembly-CSharp.dll</HintPath>
  </Reference>
  <Reference Include="System">
  <HintPath>..\_KSPAssemblies\System.dll</HintPath>
  </Reference>
  <Reference Include="UnityEngine">
  <HintPath>..\_KSPAssemblies\UnityEngine.dll</HintPath>
  </Reference>
  </ItemGroup>
  </Project>
file:b/AntennaRelay.cs (new)
  // AntennaRange
  //
  // AntennaRelay.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 System;
  using System.Collections.Generic;
  using System.Linq;
  using ToadicusTools;
 
  namespace AntennaRange
  {
  public class AntennaRelay
  {
  public static bool requireLineOfSight;
 
  // We don't have a Bard, so we'll hide Kerbin here.
  protected CelestialBody Kerbin;
 
  protected IAntennaRelay _nearestRelayCache;
  protected IAntennaRelay moduleRef;
 
  protected System.Diagnostics.Stopwatch searchTimer;
  protected long millisecondsBetweenSearches;
 
  /// <summary>
  /// Gets the parent Vessel.
  /// </summary>
  /// <value>The parent Vessel.</value>
  public virtual Vessel vessel
  {
  get
  {
  return this.moduleRef.vessel;
  }
  }
 
  /// <summary>
  /// Gets or sets the nearest relay.
  /// </summary>
  /// <value>The nearest relay</value>
  public IAntennaRelay nearestRelay
  {
  get
  {
  if (this.searchTimer.IsRunning &&
  this.searchTimer.ElapsedMilliseconds > this.millisecondsBetweenSearches)
  {
  this._nearestRelayCache = this.FindNearestRelay();
  this.searchTimer.Restart();
  }
 
  return this._nearestRelayCache;
  }
  protected set
  {
  this._nearestRelayCache = value;
  }
  }
 
  /// <summary>
  /// Gets the transmit distance.
  /// </summary>
  /// <value>The transmit distance.</value>
  public double transmitDistance
  {
  get
  {
  this.nearestRelay = this.FindNearestRelay();
 
  // If there is no available relay nearby...
  if (this.nearestRelay == null)
  {
  // .. return the distance to Kerbin
  return this.DistanceTo(this.Kerbin);
  }
  else
  {
  /// ...otherwise, return the distance to the nearest available relay.
  return this.DistanceTo(nearestRelay);
  }
  }
  }
 
  /// <summary>
  /// The maximum distance at which this relay can operate.
  /// </summary>
  /// <value>The max transmit distance.</value>
  public virtual float maxTransmitDistance
  {
  get;
  set;
  }
 
  /// <summary>
  /// Gets a value indicating whether this <see cref="AntennaRange.ProtoDataTransmitter"/> has been checked during
  /// the current relay attempt.
  /// </summary>
  /// <value><c>true</c> if relay checked; otherwise, <c>false</c>.</value>
  public virtual bool relayChecked
  {
  get;
  protected set;
  }
 
  /// <summary>
  /// Determines whether this instance can transmit.
  /// </summary>
  /// <returns><c>true</c> if this instance can transmit; otherwise, <c>false</c>.</returns>
  public virtual bool CanTransmit()
  {
  if (
  this.transmitDistance > this.maxTransmitDistance ||
  (requireLineOfSight && this.nearestRelay == null && !this.vessel.hasLineOfSightTo(this.Kerbin))
  )
  {
  return false;
  }
  else
  {
  return true;
  }
  }
 
  /// <summary>
  /// Finds the nearest relay.
  /// </summary>
  /// <returns>The nearest relay or null, if no relays in range.</returns>
  public IAntennaRelay FindNearestRelay()
  {
  if (this.searchTimer.IsRunning && this.searchTimer.ElapsedMilliseconds < this.millisecondsBetweenSearches)
  {
  return this.nearestRelay;
  }
 
  if (this.searchTimer.IsRunning)
  {
  this.searchTimer.Stop();
  this.searchTimer.Reset();
  }
 
  this.searchTimer.Start();
 
  Tools.PostDebugMessage(string.Format(
  "{0}: finding nearest relay for {1} ({2})",
  this.GetType().Name,
  this,
  this.vessel.id
  ));
 
  // Set this vessel as checked, so that we don't check it again.
  RelayDatabase.Instance.CheckedVesselsTable[vessel.id] = true;
 
  double nearestSqrDistance = double.PositiveInfinity;
  IAntennaRelay _nearestRelay = null;
 
  /*
  * Loop through all the vessels and exclude this vessel, vessels of the wrong type, and vessels that are too
  * far away. When we find a candidate, get through its antennae for relays which have not been checked yet
  * and that can transmit. Once we find a suitable candidate, assign it to _nearestRelay for comparison
  * against future finds.
  * */
  foreach (Vessel potentialVessel in FlightGlobals.Vessels)
  {
  // Skip vessels that have already been checked for a nearest relay this pass.
  if (RelayDatabase.Instance.CheckedVesselsTable.ContainsKey(potentialVessel.id))
  {
  continue;
  }
 
  // Skip vessels of the wrong type.
  switch (potentialVessel.vesselType)
  {
  case VesselType.Debris:
  case VesselType.Flag:
  case VesselType.EVA:
  case VesselType.SpaceObject:
  case VesselType.Unknown:
  continue;
  default:
  break;
  }
 
  // Skip vessels with the wrong ID
  if (potentialVessel.id == vessel.id)
  {
  continue;
  }
 
  // Skip vessels to which we do not have line of sight.
  if (requireLineOfSight && !this.vessel.hasLineOfSightTo(potentialVessel))
  {
  Tools.PostDebugMessage(
  this,
  "Vessel {0} discarded because we do not have line of sight.",
  potentialVessel.vesselName
  );
  continue;
  }
 
  // Find the distance from here to the vessel...
  double potentialSqrDistance = (potentialVessel.GetWorldPos3D() - vessel.GetWorldPos3D()).sqrMagnitude;
 
  /*
  * ...so that we can skip the vessel if it is further away than Kerbin, our transmit distance, or a
  * vessel we've already checked.
  * */
  if (
  potentialSqrDistance > Tools.Min(
  this.maxTransmitDistance * this.maxTransmitDistance,
  nearestSqrDistance,
  this.vessel.sqrDistanceTo(Kerbin)
  )
  )
  {
  Tools.PostDebugMessage(
  this,
  "Vessel {0} discarded because it is out of range, or farther than another relay.",
  potentialVessel.vesselName
  );
  continue;
  }
 
  nearestSqrDistance = potentialSqrDistance;
 
  foreach (IAntennaRelay potentialRelay in potentialVessel.GetAntennaRelays())
  {
  if (potentialRelay.CanTransmit())
  {
  _nearestRelay = potentialRelay;
  Tools.PostDebugMessage(string.Format("{0}: found new best relay {1} ({2})",
  this.GetType().Name,
  _nearestRelay.ToString(),
  _nearestRelay.vessel.id
  ));
  break;
  }
  }
  }
 
  // Now that we're done with our recursive CanTransmit checks, flag this relay as not checked so it can be
  // used next time.
  RelayDatabase.Instance.CheckedVesselsTable.Remove(vessel.id);
 
  // Return the nearest available relay, or null if there are no available relays nearby.
  return _nearestRelay;
  }
 
  /// <summary>
  /// Initializes a new instance of the <see cref="AntennaRange.ProtoDataTransmitter"/> class.
  /// </summary>
  /// <param name="ms"><see cref="ProtoPartModuleSnapshot"/></param>
  public AntennaRelay(IAntennaRelay module)
  {
  this.moduleRef = module;
 
  this.searchTimer = new System.Diagnostics.Stopwatch();
  this.millisecondsBetweenSearches = 5000;
 
  // HACK: This might not be safe in all circumstances, but since AntennaRelays are not built until Start,
  // we hope it is safe enough.
  this.Kerbin = FlightGlobals.Bodies.FirstOrDefault(b => b.name == "Kerbin");
  }
 
  static AntennaRelay()
  {
  var config = KSP.IO.PluginConfiguration.CreateForType<AntennaRelay>();
 
  config.load();
 
  AntennaRelay.requireLineOfSight = config.GetValue<bool>("requireLineOfSight", false);
 
  config.save();
  }
  }
  }
 
 
file:b/ChangeLog (new)
  2014-01-14 toadicus <>
 
  * ModuleLimitedDataTransmitter.cs: Added a ":" to the
  transmission communications for consistency with stock
  behavior.
 
 
file:b/IAntennaRelay.cs (new)
  // AntennaRange
  //
  // IAntennaRelay.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;
 
  namespace AntennaRange
  {
  /*
  * Interface defining the basic functionality of AntennaRelay modules for AntennaRange.
  * */
  public interface IAntennaRelay
  {
  /// <summary>
  /// Gets the parent Vessel.
  /// </summary>
  /// <value>The parent Vessel.</value>
  Vessel vessel { get; }
 
  /// <summary>
  /// Gets the distance to the nearest relay or Kerbin, whichever is closer.
  /// </summary>
  /// <value>The distance to the nearest relay or Kerbin, whichever is closer.</value>
  double transmitDistance { get; }
 
  /// <summary>
  /// The maximum distance at which this relay can operate.
  /// </summary>
  /// <value>The max transmit distance.</value>
  float maxTransmitDistance { get; }
 
  /// <summary>
  /// Gets a value indicating whether this <see cref="AntennaRange.ProtoDataTransmitter"/> has been checked during
  /// the current relay attempt.
  /// </summary>
  /// <value><c>true</c> if relay checked; otherwise, <c>false</c>.</value>
  bool relayChecked { get; }
 
  /// <summary>
  /// Determines whether this instance can transmit.
  /// </summary>
  /// <returns><c>true</c> if this instance can transmit; otherwise, <c>false</c>.</returns>
  bool CanTransmit();
  }
  }
 
 
  // AntennaRange
  //
  // ModuleLimitedDataTransmitter.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 System.Linq;
  using System.Text;
  using ToadicusTools;
  using UnityEngine;
 
  namespace AntennaRange
  {
  /*
  * ModuleLimitedDataTransmitter is designed as a drop-in replacement for ModuleDataTransmitter, and handles range-
  * finding, power scaling, and data scaling for antennas during science transmission. Its functionality varies with
  * three tunables: nominalRange, maxPowerFactor, and maxDataFactor, set in .cfg files.
  *
  * In general, the scaling functions assume the following relation:
  *
  * D² α P/R,
  *
  * where D is the total transmission distance, P is the transmission power, and R is the data rate.
  *
  * */
 
  /*
  * Fields
  * */
  public class ModuleLimitedDataTransmitter : ModuleDataTransmitter, IScienceDataTransmitter, IAntennaRelay
  {
  // Stores the packetResourceCost as defined in the .cfg file.
  protected float _basepacketResourceCost;
 
  // Stores the packetSize as defined in the .cfg file.
  protected float _basepacketSize;
 
  // Every antenna is a relay.
  protected AntennaRelay relay;
 
  // Keep track of vessels with transmitters for relay purposes.
  protected List<Vessel> _relayVessels;
 
  // Sometimes we will need to communicate errors; this is how we do it.
  protected ScreenMessage ErrorMsg;
 
  // The distance from Kerbin at which the antenna will perform exactly as prescribed by packetResourceCost
  // and packetSize.
  [KSPField(isPersistant = false)]
  public float nominalRange;
 
  [KSPField(isPersistant = false, guiActive = true, guiName = "Transmission Distance")]
  public string UItransmitDistance;
 
  [KSPField(isPersistant = false, guiActive = true, guiName = "Maximum Distance")]
  public string UImaxTransmitDistance;
 
  [KSPField(isPersistant = false, guiActive = true, guiName = "Packet Size")]
  public string UIpacketSize;
 
  [KSPField(isPersistant = false, guiActive = true, guiName = "Packet Cost")]
  public string UIpacketCost;
 
  // The multiplier on packetResourceCost that defines the maximum power output of the antenna. When the power
  // cost exceeds packetResourceCost * maxPowerFactor, transmission will fail.
  [KSPField(isPersistant = false)]
  public float maxPowerFactor;
 
  // 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;
 
  /*
  * Properties
  * */
  // Returns the parent vessel housing this antenna.
  public new Vessel vessel
  {
  get
  {
  return base.vessel;
  }
  }
 
  // Returns the distance to the nearest relay or Kerbin, whichever is closer.
  public double transmitDistance
  {
  get
  {
  return this.relay.transmitDistance;
  }
  }
 
  // Returns the maximum distance this module can transmit
  public float maxTransmitDistance
  {
  get
  {
  return Mathf.Sqrt (this.maxPowerFactor) * this.nominalRange;
  }
  }
 
  /*
  * The next two functions overwrite the behavior of the stock functions and do not perform equivalently, except
  * in that they both return floats. Here's some quick justification:
  *
  * The stock implementation of GetTransmitterScore (which I cannot override) is:
  * Score = (1 + DataResourceCost) / DataRate
  *
  * The stock DataRate and DataResourceCost are:
  * DataRate = packetSize / packetInterval
  * DataResourceCost = packetResourceCost / packetSize
  *
  * So, the resulting score is essentially in terms of joules per byte per baud. Rearranging that a bit, it
  * could also look like joule-seconds per byte per byte, or newton-meter-seconds per byte per byte. Either way,
  * that metric is not a very reasonable one.
  *
  * Two metrics that might make more sense are joules per byte or joules per byte per second. The latter case
  * would look like:
  * DataRate = packetSize / packetInterval
  * DataResourceCost = packetResourceCost
  *
  * The former case, which I've chosen to implement below, is:
  * DataRate = packetSize
  * DataResourceCost = packetResourceCost
  *
  * So... hopefully that doesn't screw with anything else.
  * */
  // Override ModuleDataTransmitter.DataRate to just return packetSize, because we want antennas to be scored in
  // terms of joules/byte
  public new float DataRate
  {
  get
  {
  this.PreTransmit_SetPacketSize();
 
  if (this.CanTransmit())
  {
  return this.packetSize;
  }
  else
  {
  return float.Epsilon;
  }
  }
  }
 
  // Override ModuleDataTransmitter.DataResourceCost to just return packetResourceCost, because we want antennas
  // to be scored in terms of joules/byte
  public new float DataResourceCost
  {
  get
  {
  this.PreTransmit_SetPacketResourceCost();
 
  if (this.CanTransmit())
  {
  return this.packetResourceCost;
  }
  else
  {
  return float.PositiveInfinity;
  }
  }
  }
 
  // Reports whether this antenna has been checked as a viable relay already in the current FindNearestRelay.
  public bool relayChecked
  {
  get
  {
  return this.relay.relayChecked;
  }
  }
 
  /*
  * Methods
  * */
  // Build ALL the objects.
  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.
  public override void OnStart (StartState state)
  {
  base.OnStart (state);
 
  if (state >= StartState.PreLaunch)
  {
  this.relay = new AntennaRelay(this);
  this.relay.maxTransmitDistance = this.maxTransmitDistance;
 
  this.UImaxTransmitDistance = Tools.MuMech_ToSI(this.maxTransmitDistance) + "m";
 
  GameEvents.onPartActionUICreate.Add(this.onPartActionUICreate);
  GameEvents.onPartActionUIDismiss.Add(this.onPartActionUIDismiss);
  }
  }
 
  // When the module loads, fetch the Squad KSPFields from the base. This is necessary in part because
  // overloading packetSize and packetResourceCostinto a property in ModuleLimitedDataTransmitter didn't
  // work.
  public override void OnLoad(ConfigNode node)
  {
  this.Fields.Load(node);
  base.Fields.Load(node);
 
  base.OnLoad (node);
 
  this._basepacketSize = base.packetSize;
  this._basepacketResourceCost = base.packetResourceCost;
 
  Tools.PostDebugMessage(string.Format(
  "{0} loaded:\n" +
  "packetSize: {1}\n" +
  "packetResourceCost: {2}\n" +
  "nominalRange: {3}\n" +
  "maxPowerFactor: {4}\n" +
  "maxDataFactor: {5}\n",
  this.name,
  base.packetSize,
  this._basepacketResourceCost,
  this.nominalRange,
  this.maxPowerFactor,
  this.maxDataFactor
  ));
  }
 
  // Post an error in the communication messages describing the reason transmission has failed. Currently there
  // is only one reason for this.
  protected void PostCannotTransmitError()
  {
  string ErrorText = string.Intern("Unable to transmit: no visible receivers in range!");
 
  this.ErrorMsg.message = string.Format(
  "<color='#{0}{1}{2}{3}'><b>{4}</b></color>",
  ((int)(XKCDColors.OrangeRed.r * 255f)).ToString("x2"),
  ((int)(XKCDColors.OrangeRed.g * 255f)).ToString("x2"),
  ((int)(XKCDColors.OrangeRed.b * 255f)).ToString("x2"),
  ((int)(XKCDColors.OrangeRed.a * 255f)).ToString("x2"),
  ErrorText
  );
 
  Tools.PostDebugMessage(this.GetType().Name + ": " + this.ErrorMsg.message);
 
  ScreenMessages.PostScreenMessage(this.ErrorMsg, false);
  }
 
  // Before transmission, set packetResourceCost. Per above, packet cost increases with the square of
  // distance. packetResourceCost maxes out at _basepacketResourceCost * maxPowerFactor, at which point
  // transmission fails (see CanTransmit).
  protected void PreTransmit_SetPacketResourceCost()
  {
  if (this.transmitDistance <= this.nominalRange)
  {
  base.packetResourceCost = this._basepacketResourceCost;
  }
  else
  {
  base.packetResourceCost = this._basepacketResourceCost
  * (float)Math.Pow (this.transmitDistance / this.nominalRange, 2);
  }
  }
 
  // 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)
  {
  base.packetSize = this._basepacketSize;
  }
  else
  {
  base.packetSize = Math.Min(
  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.
  public override string GetInfo()
  {
  string text = base.GetInfo();
  text += "Nominal Range: " + Tools.MuMech_ToSI((double)this.nominalRange, 2) + "m\n";
  text += "Maximum Range: " + Tools.MuMech_ToSI((double)this.maxTransmitDistance, 2) + "m\n";
  return text;
  }
 
  // Override ModuleDataTransmitter.CanTransmit to return false when transmission is not possible.
  public new bool CanTransmit()
  {
  PartStates partState = this.part.State;
  if (partState == PartStates.DEAD || partState == PartStates.DEACTIVATED)
  {
  Tools.PostDebugMessage(string.Format(
  "{0}: {1} on {2} cannot transmit: {3}",
  this.GetType().Name,
  this.part.partInfo.title,
  this.vessel.vesselName,
  Enum.GetName(typeof(PartStates), partState)
  ));
  return false;
  }
  return this.relay.CanTransmit();
  }
 
  // Override ModuleDataTransmitter.TransmitData to check against CanTransmit and fail out when CanTransmit
  // returns false.
  public new void TransmitData(List<ScienceData> dataQueue)
  {
  this.PreTransmit_SetPacketSize();
  this.PreTransmit_SetPacketResourceCost();
 
  if (this.CanTransmit())
  {
  StringBuilder message = new StringBuilder();
 
  message.Append("[");
  message.Append(base.part.partInfo.title);
  message.Append("]: ");
 
  message.Append("Beginning transmission ");
 
  if (this.relay.nearestRelay == null)
  {
  message.Append("directly to Kerbin.");
  }
  else
  {
  message.Append("via ");
  message.Append(this.relay.nearestRelay);
  }
 
  ScreenMessages.PostScreenMessage(message.ToString(), 4f, ScreenMessageStyle.UPPER_LEFT);
 
  base.TransmitData(dataQueue);
  }
  else
  {
  this.PostCannotTransmitError ();
  }
 
  Tools.PostDebugMessage (
  "distance: " + this.transmitDistance
  + " packetSize: " + this.packetSize
  + " packetResourceCost: " + this.packetResourceCost
  );
  }
 
  // Override ModuleDataTransmitter.StartTransmission to check against CanTransmit and fail out when CanTransmit
  // returns false.
  public new void StartTransmission()
  {
  PreTransmit_SetPacketSize ();
  PreTransmit_SetPacketResourceCost ();
 
  Tools.PostDebugMessage (
  "distance: " + this.transmitDistance
  + " packetSize: " + this.packetSize
  + " packetResourceCost: " + this.packetResourceCost
  );
 
  if (this.CanTransmit())
  {
  StringBuilder message = new StringBuilder();
 
  message.Append("[");
  message.Append(base.part.partInfo.title);
  message.Append("]: ");
 
  message.Append("Beginning transmission ");
 
  if (this.relay.nearestRelay == null)
  {
  message.Append("directly to Kerbin.");
  }
  else
  {
  message.Append("via ");
  message.Append(this.relay.nearestRelay);
  }
 
  ScreenMessages.PostScreenMessage(message.ToString(), 4f, ScreenMessageStyle.UPPER_LEFT);
 
  base.StartTransmission();
  }
  else
  {
  this.PostCannotTransmitError ();
  }
  }
 
  public void Update()
  {
  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";
  }
  }
 
  public void onPartActionUICreate(Part eventPart)
  {
  if (eventPart == base.part)
  {
  this.actionUIUpdate = true;
  }
  }
 
  public void onPartActionUIDismiss(Part eventPart)
  {
  if (eventPart == base.part)
  {
  this.actionUIUpdate = false;
  }
  }
 
  public override string ToString()
  {
  StringBuilder msg = new StringBuilder();
 
  msg.Append(this.part.partInfo.title);
 
  if (vessel != null)
  {
  msg.Append(" on ");
  msg.Append(vessel.vesselName);
  }
 
  return msg.ToString();
  }
 
  // When debugging, it's nice to have a button that just tells you everything.
  #if DEBUG
  [KSPEvent (guiName = "Show Debug Info", active = true, guiActive = true)]
  public void DebugInfo()
  {
  PreTransmit_SetPacketSize ();
  PreTransmit_SetPacketResourceCost ();
 
  string msg = string.Format(
  "'{0}'\n" +
  "_basepacketSize: {1}\n" +
  "packetSize: {2}\n" +
  "_basepacketResourceCost: {3}\n" +
  "packetResourceCost: {4}\n" +
  "maxTransmitDistance: {5}\n" +
  "transmitDistance: {6}\n" +
  "nominalRange: {7}\n" +
  "CanTransmit: {8}\n" +
  "DataRate: {9}\n" +
  "DataResourceCost: {10}\n" +
  "TransmitterScore: {11}\n" +
  "NearestRelay: {12}\n" +
  "Vessel ID: {13}",
  this.name,
  this._basepacketSize,
  base.packetSize,
  this._basepacketResourceCost,
  base.packetResourceCost,
  this.maxTransmitDistance,
  this.transmitDistance,
  this.nominalRange,
  this.CanTransmit(),
  this.DataRate,
  this.DataResourceCost,
  ScienceUtil.GetTransmitterScore(this),
  this.relay.FindNearestRelay(),
  this.vessel.id
  );
  Tools.PostDebugMessage(msg);
  }
 
  [KSPEvent (guiName = "Dump Vessels", active = true, guiActive = true)]
  public void PrintAllVessels()
  {
  StringBuilder sb = new StringBuilder();
 
  sb.Append("Dumping FlightGlobals.Vessels:");
 
  foreach (Vessel vessel in FlightGlobals.Vessels)
  {
  sb.AppendFormat("\n'{0} ({1})'", vessel.vesselName, vessel.id);
  }
 
  Tools.PostDebugMessage(sb.ToString());
  }
 
  [KSPEvent (guiName = "Dump RelayDB", active = true, guiActive = true)]
  public void DumpRelayDB()
  {
  RelayDatabase.Instance.Dump();
  }
  #endif
  }
  }
  // AntennaRange
  //
  // AssemblyInfo.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 System.Reflection;
  using System.Runtime.CompilerServices;
 
  // Information about this assembly is defined by the following attributes.
  // Change them to the values specific to your project.
  [assembly: AssemblyTitle("AntennaRange")]
  [assembly: AssemblyDescription("Enforce and Encourage Antenna Diversity")]
  [assembly: AssemblyCopyright("toadicus")]
  // 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("1.1.*")]
  // 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("")]
 
 
  2014-01-14 toadicus <>
 
  * AssemblyInfo.cs: New AssemblyInfo file for reason.
 
 
  // AntennaRange
  //
  // ProtoAntennaRelay.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.Linq;
  using ToadicusTools;
 
  namespace AntennaRange
  {
  /*
  * Wrapper class for ProtoPartModuleSnapshot extending AntennaRelay and implementing IAntennaRelay.
  * This is used for finding relays in unloaded Vessels.
  * */
  public class ProtoAntennaRelay : AntennaRelay, IAntennaRelay
  {
  // Stores the prototype part so we can make sure we haven't exploded or so.
  protected ProtoPartSnapshot protoPart;
 
  public override Vessel vessel
  {
  get
  {
  return this.protoPart.pVesselRef.vesselRef;
  }
  }
 
  /// <summary>
  /// The maximum distance at which this transmitter can operate.
  /// </summary>
  /// <value>The max transmit distance.</value>
  public override float maxTransmitDistance
  {
  get
  {
  return moduleRef.maxTransmitDistance;
  }
  }
 
  /// <summary>
  /// Gets a value indicating whether this <see cref="AntennaRange.ProtoDataTransmitter"/> has been checked during
  /// the current relay attempt.
  /// </summary>
  /// <value><c>true</c> if relay checked; otherwise, <c>false</c>.</value>
  public override bool relayChecked
  {
  get;
  protected set;
  }
 
  /// <summary>
  /// Gets the underlying part's title.
  /// </summary>
  /// <value>The title.</value>
  public string title
  {
  get
  {
  return this.protoPart.partInfo.title;
  }
  }
 
  public override bool CanTransmit()
  {
  PartStates partState = (PartStates)this.protoPart.state;
  if (partState == PartStates.DEAD || partState == PartStates.DEACTIVATED)
  {
  Tools.PostDebugMessage(string.Format(
  "{0}: {1} on {2} cannot transmit: {3}",
  this.GetType().Name,
  this.title,
  this.vessel.vesselName,
  Enum.GetName(typeof(PartStates), partState)
  ));
  return false;
  }
  return base.CanTransmit();
  }
 
  public override string ToString()
  {
  return string.Format(
  "{0} on {1} (proto)",
  this.title,
  this.protoPart.pVesselRef.vesselName
  );
  }
 
  /// <summary>
  /// Initializes a new instance of the <see cref="AntennaRange.ProtoAntennaRelay"/> class.
  /// </summary>
  /// <param name="ms">The ProtoPartModuleSnapshot to wrap</param>
  /// <param name="vessel">The parent Vessel</param>
  public ProtoAntennaRelay(IAntennaRelay prefabRelay, ProtoPartSnapshot pps) : base(prefabRelay)
  {
  this.protoPart = pps;
  }
 
  ~ProtoAntennaRelay()
  {
  Tools.PostDebugMessage(string.Format(
  "{0}: destroyed",
  this.ToString()
  ));
  }
  }
  }
 
 
file:b/RelayDatabase.cs (new)
  // AntennaRange
  //
  // RelayDatabase.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 System.Text;
  using ToadicusTools;
  using UnityEngine;
 
  namespace AntennaRange
  {
  public class RelayDatabase
  {
  /*
  * Static members
  * */
  // Singleton storage
  protected static RelayDatabase _instance;
  // Gets the singleton
  public static RelayDatabase Instance
  {
  get
  {
  if (_instance == null)
  {
  _instance = new RelayDatabase();
  }
 
  return _instance;
  }
  }
 
  /*
  * Instance members
  * */
 
  /*
  * Fields
  * */
  // Vessel.id-keyed hash table of Part.GetHashCode()-keyed tables of relay objects.
  protected Dictionary<Guid, Dictionary<int, IAntennaRelay>> relayDatabase;
 
  // Vessel.id-keyed hash table of part counts, used for caching
  protected Dictionary<Guid, int> vesselPartCountTable;
 
  // Vessel.id-keyed hash table of booleans to track what vessels have been checked so far this time.
  public Dictionary<Guid, bool> CheckedVesselsTable;
 
  protected int cacheHits;
  protected int cacheMisses;
 
  /*
  * Properties
  * */
  // Gets the Part-hashed table of relays in a given vessel
  public Dictionary<int, IAntennaRelay> this [Vessel vessel]
  {
  get
  {
  // If we don't have an entry for this vessel...
  if (!this.ContainsKey(vessel.id))
  {
  // ...Generate an entry for this vessel.
  this.AddVessel(vessel);
  this.cacheMisses++;
  }
  // If our part count disagrees with the vessel's part count...
  else if (this.vesselPartCountTable[vessel.id] != vessel.Parts.Count)
  {
  // ...Update the our vessel in the cache
  this.UpdateVessel(vessel);
  this.cacheMisses++;
  }
  // Otherwise, it's a hit
  else
  {
  this.cacheHits++;
  }
 
  // Return the Part-hashed table of relays for this vessel
  return relayDatabase[vessel.id];
  }
  }
 
  /*
  * Methods
  * */
  // Adds a vessel to the database
  // The return for this function isn't used yet, but seems useful for potential future API-uses
  public bool AddVessel(Vessel vessel)
  {
  // If this vessel is already here...
  if (this.ContainsKey(vessel))
  {
  // ...post an error
  Debug.LogWarning(string.Format(
  "{0}: Cannot add vessel '{1}' (id: {2}): Already in database.",
  this.GetType().Name,
  vessel.vesselName,
  vessel.id
  ));
 
  // ...and refuse to add
  return false;
  }
  // otherwise, add the vessel to our tables...
  else
  {
  // Build an empty table...
  this.relayDatabase[vessel.id] = new Dictionary<int, IAntennaRelay>();
 
  // Update the empty index
  this.UpdateVessel(vessel);
 
  // Return success
  return true;
  }
  }
 
  // Update the vessel's entry in the table
  public void UpdateVessel(Vessel vessel)
  {
  // Squak if the database doesn't have the vessel
  if (!this.ContainsKey(vessel))
  {
  throw new InvalidOperationException(string.Format(
  "{0}: Update called for vessel '{1}' (id: {2}) not in database: vessel will be added.",
  this.GetType().Name,
  vessel.vesselName,
  vessel.id
  ));
  }
 
  Dictionary<int, IAntennaRelay> vesselTable = this.relayDatabase[vessel.id];
 
  // Actually build and assign the table
  this.getVesselRelays(vessel, ref vesselTable);
  // Set the part count
  this.vesselPartCountTable[vessel.id] = vessel.Parts.Count;
  }
 
  // Remove a vessel from the cache, if it exists.
  public void DirtyVessel(Vessel vessel)
  {
  if (this.relayDatabase.ContainsKey(vessel.id))
  {
  this.relayDatabase.Remove(vessel.id);
  }
  if (this.vesselPartCountTable.ContainsKey(vessel.id))
  {
  this.vesselPartCountTable.Remove(vessel.id);
  }
  }
 
  // Returns true if both the relayDatabase and the vesselPartCountDB contain the vessel id.
  public bool ContainsKey(Guid key)
  {
  return this.relayDatabase.ContainsKey(key);
  }
 
  // Returns true if both the relayDatabase and the vesselPartCountDB contain the vessel.
  public bool ContainsKey(Vessel vessel)
  {
  return this.ContainsKey(vessel.id);
  }
 
  // Runs when a vessel is modified (or when we switch to one, to catch docking events)
  public void onVesselEvent(Vessel vessel)
  {
  // If we have this vessel in our cache...
  if (this.ContainsKey(vessel))
  {
  // If our part counts disagree (such as if a part has been added or broken off,
  // or if we've just docked or undocked)...
  if (this.vesselPartCountTable[vessel.id] != vessel.Parts.Count || vessel.loaded)
  {
  Tools.PostDebugMessage(string.Format(
  "{0}: dirtying cache for vessel '{1}' ({2}).",
  this.GetType().Name,
  vessel.vesselName,
  vessel.id
  ));
 
  // Dirty the cache (real vessels will never have negative part counts)
  this.DirtyVessel(vessel);
  }
  }
  }
 
  // Runs when the player requests a scene change, such as when changing vessels or leaving flight.
  public void onSceneChange(GameScenes scene)
  {
  // If the active vessel is a real thing...
  if (FlightGlobals.ActiveVessel != null)
  {
  // ... dirty its cache
  this.onVesselEvent(FlightGlobals.ActiveVessel);
  }
  }
 
  // Runs when parts are undocked
  public void onPartEvent(Part part)
  {
  if (part != null && part.vessel != null)
  {
  this.onVesselEvent(part.vessel);
  }
  }
 
  // Runs when parts are coupled, as in docking
  public void onFromPartToPartEvent(GameEvents.FromToAction<Part, Part> data)
  {
  this.onPartEvent(data.from);
  this.onPartEvent(data.to);
  }
 
  // Produce a Part-hashed table of relays for the given vessel
  protected void getVesselRelays(Vessel vessel, ref Dictionary<int, IAntennaRelay> relays)
  {
  // We're going to completely regen this table, so dump the current contents.
  relays.Clear();
 
  Tools.PostDebugMessage(string.Format(
  "{0}: Getting antenna relays from vessel {1}.",
  "IAntennaRelay",
  vessel.vesselName
  ));
 
  // If the vessel is loaded, we can fetch modules implementing IAntennaRelay directly.
  if (vessel.loaded) {
  Tools.PostDebugMessage(string.Format(
  "{0}: vessel {1} is loaded, searching for modules in loaded parts.",
  "IAntennaRelay",
  vessel.vesselName
  ));
 
  // Loop through the Parts in the Vessel...
  foreach (Part part in vessel.Parts)
  {
  // ...loop through the PartModules in the Part...
  foreach (PartModule module in part.Modules)
  {
  // ...if the module is a relay...
  if (module is IAntennaRelay)
  {
  // ...add the module to the table
  relays.Add(part.GetHashCode(), module as IAntennaRelay);
  // ...neglect relay objects after the first in each part.
  break;
  }
  }
  }
  }
  // If the vessel is not loaded, we need to build ProtoAntennaRelays when we find relay ProtoPartSnapshots.
  else
  {
  Tools.PostDebugMessage(string.Format(
  "{0}: vessel {1} is not loaded, searching for modules in prototype parts.",
  this.GetType().Name,
  vessel.vesselName
  ));
 
  // Loop through the ProtoPartModuleSnapshots in the Vessel...
  foreach (ProtoPartSnapshot pps in vessel.protoVessel.protoPartSnapshots)
  {
  Tools.PostDebugMessage(string.Format(
  "{0}: Searching in protopartsnapshot {1}",
  this.GetType().Name,
  pps
  ));
 
  // ...Fetch the prefab, because it's more useful for what we're doing.
  Part partPrefab = PartLoader.getPartInfoByName(pps.partName).partPrefab;
 
  Tools.PostDebugMessage(string.Format(
  "{0}: Got partPrefab {1} in protopartsnapshot {2}",
  this.GetType().Name,
  partPrefab,
  pps
  ));
 
  // ...loop through the PartModules in the prefab...
  foreach (PartModule module in partPrefab.Modules)
  {
  Tools.PostDebugMessage(string.Format(
  "{0}: Searching in partmodule {1}",
  this.GetType().Name,
  module
  ));
 
  // ...if the module is a relay...
  if (module is IAntennaRelay)
  {
  Tools.PostDebugMessage(string.Format(
  "{0}: partmodule {1} is antennarelay",
  this.GetType().Name,
  module
  ));
 
  // ...build a new ProtoAntennaRelay and add it to the table
  relays.Add(pps.GetHashCode(), new ProtoAntennaRelay(module as IAntennaRelay, pps));
  // ...neglect relay objects after the first in each part.
  break;
  }
  }
  }
  }
 
  Tools.PostDebugMessage(string.Format(
  "{0}: vessel '{1}' ({2}) has {3} transmitters.",
  "IAntennaRelay",
  vessel.vesselName,
  vessel.id,
  relays.Count
  ));
  }
 
  // Construct the singleton
  protected RelayDatabase()
  {
  // Initialize the databases
  this.relayDatabase = new Dictionary<Guid, Dictionary<int, IAntennaRelay>>();
  this.vesselPartCountTable = new Dictionary<Guid, int>();
  this.CheckedVesselsTable = new Dictionary<Guid, bool>();
 
  this.cacheHits = 0;
  this.cacheMisses = 0;
 
  // Subscribe to some events
  GameEvents.onVesselWasModified.Add(this.onVesselEvent);
  GameEvents.onVesselChange.Add(this.onVesselEvent);
  GameEvents.onVesselDestroy.Add(this.onVesselEvent);
  GameEvents.onGameSceneLoadRequested.Add(this.onSceneChange);
  GameEvents.onPartCouple.Add(this.onFromPartToPartEvent);
  GameEvents.onPartUndock.Add(this.onPartEvent);
  }
 
  ~RelayDatabase()
  {
  // Unsubscribe from the events
  GameEvents.onVesselWasModified.Remove(this.onVesselEvent);
  GameEvents.onVesselChange.Remove(this.onVesselEvent);
  GameEvents.onVesselDestroy.Remove(this.onVesselEvent);
  GameEvents.onGameSceneLoadRequested.Remove(this.onSceneChange);
  GameEvents.onPartCouple.Remove(this.onFromPartToPartEvent);
  GameEvents.onPartUndock.Remove(this.onPartEvent);
 
  Tools.PostDebugMessage(this.GetType().Name + " destroyed.");
 
  KSPLog.print(string.Format(
  "{0} destructed. Cache hits: {1}, misses: {2}, hit rate: {3:P1}",
  this.GetType().Name,
  this.cacheHits,
  this.cacheMisses,
  (float)this.cacheHits / (float)(this.cacheMisses + this.cacheHits)
  ));
  }
 
  #if DEBUG
  public void Dump()
  {
  StringBuilder sb = new StringBuilder();
 
  sb.Append("Dumping RelayDatabase:");
 
  foreach (Guid id in this.relayDatabase.Keys)
  {
  sb.AppendFormat("\nVessel {0}:", id);
 
  foreach (IAntennaRelay relay in this.relayDatabase[id].Values)
  {
  sb.AppendFormat("\n\t{0}", relay.ToString());
  }
  }
 
  Tools.PostDebugMessage(sb.ToString());
  }
  #endif
  }
  }
 
 
  // AntennaRange
  //
  // Extensions.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 System;
  using System.Collections.Generic;
  using System.Linq;
  using ToadicusTools;
 
  namespace AntennaRange
  {
  /*
  * A class of utility extensions for Vessels and Relays to help find a relay path back to Kerbin.
  * */
  public static class RelayExtensions
  {
  /// <summary>
  /// Returns the distance between this IAntennaRelay and a Vessel
  /// </summary>
  /// <param name="relay">This <see cref="IAntennaRelay"/></param>
  /// <param name="Vessel">A <see cref="Vessel"/></param>
  public static double DistanceTo(this AntennaRelay relay, Vessel Vessel)
  {
  return relay.vessel.DistanceTo(Vessel);
  }
 
  /// <summary>
  /// Returns the distance between this IAntennaRelay and a CelestialBody
  /// </summary>
  /// <param name="relay">This <see cref="IAntennaRelay"/></param>
  /// <param name="body">A <see cref="CelestialBody"/></param>
  public static double DistanceTo(this AntennaRelay relay, CelestialBody body)
  {
  return relay.vessel.DistanceTo(body);
  }
 
  /// <summary>
  /// Returns the distance between this IAntennaRelay and another IAntennaRelay
  /// </summary>
  /// <param name="relayOne">This <see cref="IAntennaRelay"/></param>
  /// <param name="relayTwo">Another <see cref="IAntennaRelay"/></param>
  public static double DistanceTo(this AntennaRelay relayOne, IAntennaRelay relayTwo)
  {
  return relayOne.DistanceTo(relayTwo.vessel);
  }
 
  /// <summary>
  /// Returns all of the PartModules or ProtoPartModuleSnapshots implementing IAntennaRelay in this Vessel.
  /// </summary>
  /// <param name="vessel">This <see cref="Vessel"/></param>
  public static IEnumerable<IAntennaRelay> GetAntennaRelays (this Vessel vessel)
  {
  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;
  }
  }
  }