bool Ship::CanHyperspaceTo(const SystemPath *dest, int &outFuelRequired, double &outDurationSecs, enum HyperjumpStatus *outStatus)
{
Equip::Type t = m_equipment.Get(Equip::SLOT_ENGINE);
Equip::Type fuelType = GetHyperdriveFuelType();
int hyperclass = EquipType::types[t].pval;
int fuel = m_equipment.Count(Equip::SLOT_CARGO, fuelType);
outFuelRequired = 0;
if (hyperclass == 0) {
if (outStatus) *outStatus = HYPERJUMP_NO_DRIVE;
return false;
}
if (Pi::currentSystem && Pi::currentSystem->GetPath().IsSameSystem(*dest)) {
if (outStatus) *outStatus = HYPERJUMP_CURRENT_SYSTEM;
return false;
}
float dist = distance_to_system(dest);
this->CalcStats();
outFuelRequired = int(ceil(hyperclass*hyperclass*dist / m_stats.hyperspace_range_max));
double m_totalmass = m_stats.total_mass;
if (outFuelRequired > hyperclass*hyperclass) outFuelRequired = hyperclass*hyperclass;
if (outFuelRequired < 1) outFuelRequired = 1;
if (dist > m_stats.hyperspace_range_max) {
outFuelRequired = 0;
if (outStatus) *outStatus = HYPERJUMP_OUT_OF_RANGE;
return false;
} else if (fuel < outFuelRequired) {
if (outStatus) *outStatus = HYPERJUMP_INSUFFICIENT_FUEL;
return false;
} else {
// Old comments:
// take at most a week. why a week? because a week is a
// fundamental physical unit in the same sense that the planck length
// is, and so it is very probable that future hyperspace
// technologies will involve travelling a week through time.
// Now mass has more of an effect on the time taken, this is mainly
// for gameplay considerations for courier missions and the like.
outDurationSecs = ((dist * dist * 0.5) / (m_stats.hyperspace_range_max *
hyperclass)) *
(60.0 * 60.0 * 24.0 * sqrt(m_totalmass));
//float hours = outDurationSecs * 0.0002778;
//printf("%f LY in %f hours OR %d seconds \n", dist, hours, outDurationSecs);
//printf("%d seconds\n", outDurationSecs);
if (outFuelRequired <= fuel) {
if (outStatus) *outStatus = HYPERJUMP_OK;
return true;
} else {
if (outStatus) *outStatus = HYPERJUMP_INSUFFICIENT_FUEL;
return false;
}
}
}
Ship::HyperjumpStatus Ship::GetHyperspaceDetails(const SystemPath &dest, int &outFuelRequired, double &outDurationSecs)
{
assert(dest.HasValidSystem());
outFuelRequired = 0;
outDurationSecs = 0.0;
UpdateStats();
if (GetFlightState() == HYPERSPACE)
return HYPERJUMP_DRIVE_ACTIVE;
Equip::Type t = m_equipment.Get(Equip::SLOT_ENGINE);
Equip::Type fuelType = GetHyperdriveFuelType();
int hyperclass = Equip::types[t].pval;
int fuel = m_equipment.Count(Equip::SLOT_CARGO, fuelType);
if (hyperclass == 0)
return HYPERJUMP_NO_DRIVE;
StarSystem *s = Pi::game->GetSpace()->GetStarSystem().Get();
if (s && s->GetPath().IsSameSystem(dest))
return HYPERJUMP_CURRENT_SYSTEM;
float dist = distance_to_system(dest);
outFuelRequired = Pi::CalcHyperspaceFuelOut(hyperclass, dist, m_stats.hyperspace_range_max);
double m_totalmass = GetMass()/1000;
if (dist > m_stats.hyperspace_range_max) {
outFuelRequired = 0;
return HYPERJUMP_OUT_OF_RANGE;
} else if (fuel < outFuelRequired) {
return HYPERJUMP_INSUFFICIENT_FUEL;
} else {
outDurationSecs = Pi::CalcHyperspaceDuration(hyperclass, m_totalmass, dist);
if (outFuelRequired <= fuel) {
return HYPERJUMP_OK;
} else {
return HYPERJUMP_INSUFFICIENT_FUEL;
}
}
}
