public override PointF NextPosition(CelestialObject obj, double dt)
{
Time += dt;
double pos = 2 * Math.PI * Time / Period;
return new PointF( (float)( Radius * Math.Cos( pos )), (float)( Radius * Math.Sin( pos ) ) );
}
public abstract PointF NextPosition( CelestialObject obj, double dt );
void planetSystem_Moved(CelestialObject sender)
{
xTextBox.Text = Convert.ToString(planetSystem.GlobalPos.X);
yTextBox.Text = Convert.ToString(planetSystem.GlobalPos.Y);
}
public void Recalculate(CelestialObject obj)
{
Time = Math.Atan2(obj.LocalPos.Y, obj.LocalPos.X) * Period / 2 / Math.PI;
Radius = Math.Sqrt( obj.LocalPos.X * obj.LocalPos.X + obj.LocalPos.Y * obj.LocalPos.Y );
}
void planet_Changed(CelestialObject sender)
{
colorButton.BackColor = planet.Color;
}