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Code Issues 121 Wiki Activity

Use the sq function to force constexpr expressions for numeric literals and enhance readability

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docentYT
2026-04-28 13:23:14 +02:00
parent 6be1b0886d
commit ca839652bf
15 changed files with 64 additions and 59 deletions
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4
environment/moon.cpp
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@@ -136,7 +136,7 @@ void cMoon::move() {
// mean anomaly
m_body.mnanom = clamp_circular( 115.3654 + 13.0649929509 * daynumber ); // M, degrees
// eccentricity
double const e = 0.054900;
double constexpr e = 0.054900;
// eccentric anomaly
double E0 = m_body.mnanom + radtodeg * e * std::sin( degtorad * m_body.mnanom ) * ( 1.0 + e * std::cos( degtorad * m_body.mnanom ) );
double E1 = E0 - ( E0 - radtodeg * e * std::sin( degtorad * E0 ) - m_body.mnanom ) / ( 1.0 - e * std::cos( degtorad * E0 ) );
@@ -147,7 +147,7 @@ void cMoon::move() {
double const E = E1;
// lunar orbit plane rectangular coordinates
double const xv = mndistance * ( std::cos( degtorad * E ) - e );
double const yv = mndistance * std::sin( degtorad * E ) * std::sqrt( 1.0 - e*e );
double const yv = mndistance * std::sin( degtorad * E ) * std::sqrt( 1.0 - sq(e) );
// distance
m_body.distance = std::sqrt( xv*xv + yv*yv ); // r
// true anomaly