// return true if a storm just ended
// used to avoid sending 'signal is back' messages en-masse after the storm is over
// - delta_time: time between calls to this function
public static bool JustEnded(Vessel v, double delta_time)
{
// if in interplanetary space
if (v.mainBody.flightGlobalsIndex == 0)
{
return(DB.Vessel(v).storm_age < delta_time * 2.0);
}
// if inside a planetary system
else
{
return(DB.Body(Lib.PlanetarySystem(v.mainBody).name).storm_age < delta_time * 2.0);
}
}
// return true if a storm is in progress
public static bool InProgress(Vessel v)
{
// if in interplanetary space
if (v.mainBody.flightGlobalsIndex == 0)
{
return(DB.Vessel(v).storm_state == 2);
}
// if inside a planetary system
else
{
return(DB.Body(Lib.PlanetarySystem(v.mainBody).name).storm_state == 2);
}
}
// return time left until CME is over
public static double TimeLeftCME(Vessel v)
{
// if in interplanetary space
if (v.mainBody.flightGlobalsIndex == 0)
{
VesselData vd = DB.Vessel(v);
return(TimeLeftCME(vd.storm_time, vd.storm_age));
}
// if inside a planetary system
else
{
BodyData bd = DB.Body(Lib.PlanetarySystem(v.mainBody).name);
return(TimeLeftCME(bd.storm_time, bd.storm_age));
}
}
public static void Update(CelestialBody body, double elapsed_s)
{
// do nothing if storms are disabled
if (!Features.SpaceWeather)
{
return;
}
// skip the sun
if (body.flightGlobalsIndex == 0)
{
return;
}
// skip moons
// note: referenceBody is never null here
if (body.referenceBody.flightGlobalsIndex != 0)
{
return;
}
// get body data
BodyData bd = DB.Body(body.name);
// generate storm time if necessary
if (bd.storm_time <= double.Epsilon)
{
bd.storm_time = Settings.StormMinTime + (Settings.StormMaxTime - Settings.StormMinTime) * Lib.RandomDouble();
}
// accumulate age
bd.storm_age += elapsed_s * Storm_Frequency(body.orbit.semiMajorAxis);
// if storm is over
if (bd.storm_age > bd.storm_time)
{
bd.storm_age = 0.0;
bd.storm_time = 0.0;
bd.storm_state = 0;
}
// if storm is in progress
else if (bd.storm_age > bd.storm_time - Settings.StormDuration)
{
bd.storm_state = 2;
}
// if storm is incoming
else if (bd.storm_age > bd.storm_time - Settings.StormDuration - Time_to_Impact(body.orbit.semiMajorAxis))
{
bd.storm_state = 1;
}
// send messages
// note: separed from state management to support the case when the user enter the SOI of a body under storm or about to be hit
if (bd.msg_storm < 2 && bd.storm_state == 2)
{
if (Body_is_Relevant(body))
{
Message.Post(Severity.danger, Lib.BuildString("The coronal mass ejection hit <b>", body.name, "</b> system"),
Lib.BuildString("Storm duration: ", Lib.HumanReadableDuration(TimeLeftCME(bd.storm_time, bd.storm_age))));
}
bd.msg_storm = 2;
}
else if (bd.msg_storm < 1 && bd.storm_state == 1)
{
if (Body_is_Relevant(body))
{
Message.Post(Severity.warning, Lib.BuildString("Our observatories report a coronal mass ejection directed toward <b>", body.name, "</b> system"),
Lib.BuildString("Time to impact: ", Lib.HumanReadableDuration(TimeBeforeCME(bd.storm_time, bd.storm_age))));
}
bd.msg_storm = 1;
}
else if (bd.msg_storm > 1 && bd.storm_state == 0)
{
if (Body_is_Relevant(body))
{
Message.Post(Severity.relax, Lib.BuildString("The solar storm at <b>", body.name, "</b> system is over"));
}
bd.msg_storm = 0;
}
}