MiningJob.cs

public class MiningJob
        {
            public Asteroid TargetAsteroid { get; set; }
            public int Row { get; set; }
            public int Column { get; set; }
            internal MiningVessel _vessel;
            public bool FinishedBore { get; internal set; }
            internal Size BoreSize{get;set;}

            public MiningJob(Asteroid asteroid, MiningVessel vessel)
            {
                _vessel = vessel;
                TargetAsteroid = asteroid;
                Row = 0;
                Column = 0;
            }
<snip>

            internal double? _progressFromIni = null;
            public double Progress
            {
                get
                {
                    if (_progressFromIni.HasValue)
                        return _progressFromIni.Value;
                    try
                    {
                        return IsInsideAsteroidSoi ? 0.0 : FinishedBore ? 1.0 : GetDistanceFromBoreStart / (CurrentVectorStart - CurrentVectorEnd).Length();
                    }
                    catch
                    {
                        return 0.0;
                    }
                }
                internal set
                {
                    _progressFromIni = value;
                }
            }
        
            public string ToIini(MyIni ini = null, string section = nameof(MiningJob))
            {
                if (ini == null)
                    ini = new MyIni();

                ini.Set(section, nameof(Row), Row);
                ini.Set(section, nameof(Column), Column);

                ini.Set(section, nameof(Progress), Progress);
                ini.Set(section, nameof(GetDistanceFromBoreStart), GetDistanceFromBoreStart);

                TargetAsteroid.ToIni(ini);

                return ini.ToString();
            }

            public static MiningJob FromIni(MyIni ini, string section = nameof(MiningJob))
            {
                try
                {
                    var target = Asteroid.TryParseFromIni(ini);
                    if (target == null)
                        return null;

                    var job = new MiningJob(target, null);

                    job.Row = ini.Get(section, nameof(job.Row)).ToInt32();
                    job.Column = ini.Get(section, nameof(job.Column)).ToInt32();

                    job.Progress = ini.Get(section, nameof(job.Progress)).ToDouble();
                    job.GetDistanceFromBoreStart = ini.Get(section, nameof(job.GetDistanceFromBoreStart)).ToDouble();
                    return job;
                }
                catch
                {
                    return null;
                }
            }
        }