//*****************************************************************
// Run-time methods
//*****************************************************************
/// <summary>
/// Run-time update of the solar system time. The new time must be a time later
/// than the initial start time of the solar system.
///
/// This API makes use of @GravityEngine#SetPhysicalTime. This requires that ALL
/// objects in the scene be "on-rails" i.e. have an OrbitXXX component and be in Kepler
/// evolution mode.
///
/// </summary>
/// <param name="year"></param>
/// <param name="month"></param>
/// <param name="day"></param>
/// <param name="dayFrac"></param>
public void SetTime(int year, int month, int day, float dayFrac)
{
// TODO - use dayFrac
// C# DateTime/TimeSpan to find the number of seconds to add
System.DateTime newTime = new System.DateTime(year, month, day);
System.DateTime startTime = SolarUtils.DateForEpoch(_epochTime);
double secsFromStart = (newTime - startTime).Ticks / (1E7);
if (secsFromStart < 0)
{
Debug.LogError("Cannot evolve earlier than solar system start time.");
}
Debug.LogFormat("Secs from start={0} phys={1} newPhys={2}",
secsFromStart,
GravityEngine.Instance().GetPhysicalTimeDouble(),
GravityScaler.WorldSecsToPhysTime(secsFromStart));
GravityEngine.Instance().SetPhysicalTime(GravityScaler.WorldSecsToPhysTime(secsFromStart));
}
