// AntennaRange © 2014 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.
//
// This software uses code from the MuMechLib library, © 2013 r4m0n, used under the GNU GPL version 3.
 
using System;
using System.Collections.Generic;
using System.Linq;
 
namespace AntennaRange
{
        /*
         * A class of utility extensions for Vessels and Relays to help find a relay path back to Kerbin.
         * */
        public static class Extensions
        {
                /// <summary>
                /// Returns the distance between this Vessel and another Vessel.
                /// </summary>
                /// <param name="vesselOne">This <see cref="Vessel"/><see ></param>
                /// <param name="vesselTwo">Another <see cref="Vessel"/></param>
                public static double DistanceTo(this Vessel vesselOne, Vessel vesselTwo)
                {
                        return (vesselOne.GetWorldPos3D() - vesselTwo.GetWorldPos3D()).magnitude;
                }
 
                /// <summary>
                /// Returns the distance between this Vessel and a CelestialBody
                /// </summary>
                /// <param name="vessel">This Vessel</param>
                /// <param name="body">A <see cref="CelestialBody"/></param>
                public static double DistanceTo(this Vessel vessel, CelestialBody body)
                {
                        return (vessel.GetWorldPos3D() - body.position).magnitude;
                }
 
                /// <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();
                }
 
 
        }
}