public void MoveToNextStatus(ShowInfoTextDelegate ShowInfoText, bool showContinueButton, bool showResetButton)
{
ResourceManager rm = new ResourceManager("Hohmann.InfoText", Assembly.GetExecutingAssembly());
currStatus++;
string infoMessage = rm.GetString("txtInfo" + currStatus.ToString(), new CultureInfo(System.String.Empty));
ShowInfoText(infoMessage, showContinueButton, showResetButton);
}
public void AdvanceOneDay(ShowInfoTextDelegate ShowInfoText)
{
double satAnomaly;
simulationDaysElapsed++;
simulationCurrDate = simulationCurrDate.AddDays(1);
bodyEarth.AdvanceOneDay();
bodyMars.AdvanceOneDay();
if (showingSatellite)
{
satAnomaly = bodySatellite.AdvanceOneDay();
if (!freeSpinning && satEventWatcher.SignChangeInDifference(satAnomaly, Math.PI)) //check for completion of half an orbit (ie arrival on Mars)
{
MoveToNextStatus(ShowInfoText, true, true);
freeSpinning = true;
return;
}
}
if (!showingSatellite)
{ //look for launch window
int Tmars = bodyMars.OrbitalPeriod, Tsat = bodySatellite.OrbitalPeriod;
//In Tsat/2 days, satellite will travel Pi radians, and Mars will travel [Tsat/Tmars] * Pi radians,
//so need to launch when Mars has a headstart of Pi (1- [Tsat/Tmars]) radians on the Earth
double marsHeadstartRequired = Math.PI * (1 - (double)Tsat / Tmars);
double earthAngle = bodyEarth.GetTrueAnomaly(), marsAngle = bodyMars.GetTrueAnomaly();
if (marsAngle < earthAngle)
{
marsAngle += 2.0 * Math.PI; //always consider Mars to be ahead of Earth
}
//We're looking for HeadstartRequired = CurrentHeadstart, but we need to cope with floating-point
// inaccuracies. The best way to do this is to look for a sign change in (HeadstartRequired - CurrentHeadstart)
double planetAngularSeparation = marsAngle - earthAngle;
if (satEventWatcher.SignChangeInDifference(marsHeadstartRequired, planetAngularSeparation))
{
showingSatellite = true;
SatMajorAxisAngle = bodyEarth.GetTrueAnomaly();
bodySatellite.Init();
satOrbitRect = bodySatellite.OrbitBoundingRectUnrotated;
satEventWatcher.Reset(); //now we will use the watcher to look for the satellite's arrival on Mars
MoveToNextStatus(ShowInfoText, true, false);
return;
}
}
}
public void AdvanceOneDay(ShowInfoTextDelegate ShowInfoText)
{
double satAnomaly;
simulationDaysElapsed++;
simulationCurrDate = simulationCurrDate.AddDays(1);
bodyEarth.AdvanceOneDay();
bodyMars.AdvanceOneDay();
if(showingSatellite)
{
satAnomaly = bodySatellite.AdvanceOneDay();
if(!freeSpinning && satEventWatcher.SignChangeInDifference(satAnomaly, Math.PI)) //check for completion of half an orbit (ie arrival on Mars)
{
MoveToNextStatus(ShowInfoText, true, true);
freeSpinning = true;
return;
}
}
if(!showingSatellite)
{ //look for launch window
int Tmars = bodyMars.OrbitalPeriod, Tsat = bodySatellite.OrbitalPeriod;
//In Tsat/2 days, satellite will travel Pi radians, and Mars will travel [Tsat/Tmars] * Pi radians,
//so need to launch when Mars has a headstart of Pi (1- [Tsat/Tmars]) radians on the Earth
double marsHeadstartRequired = Math.PI * (1 - (double) Tsat / Tmars);
double earthAngle = bodyEarth.GetTrueAnomaly(), marsAngle = bodyMars.GetTrueAnomaly();
if(marsAngle < earthAngle) marsAngle += 2.0 * Math.PI; //always consider Mars to be ahead of Earth
//We're looking for HeadstartRequired = CurrentHeadstart, but we need to cope with floating-point
// inaccuracies. The best way to do this is to look for a sign change in (HeadstartRequired - CurrentHeadstart)
double planetAngularSeparation = marsAngle - earthAngle;
if(satEventWatcher.SignChangeInDifference(marsHeadstartRequired, planetAngularSeparation))
{
showingSatellite = true;
SatMajorAxisAngle = bodyEarth.GetTrueAnomaly();
bodySatellite.Init();
satOrbitRect = bodySatellite.OrbitBoundingRectUnrotated;
satEventWatcher.Reset(); //now we will use the watcher to look for the satellite's arrival on Mars
MoveToNextStatus(ShowInfoText, true, false);
return;
}
}
}
public void MoveToNextStatus(ShowInfoTextDelegate ShowInfoText, bool showContinueButton, bool showResetButton)
{
ResourceManager rm = new ResourceManager("Hohmann.InfoText", Assembly.GetExecutingAssembly());
currStatus++;
string infoMessage = rm.GetString("txtInfo" + currStatus.ToString(), new CultureInfo(System.String.Empty));
ShowInfoText(infoMessage, showContinueButton, showResetButton);
}
