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https://github.com/MaSzyna-EU07/maszyna.git
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Merge branch 'tmj-dev' into milek-dev
This commit is contained in:
23
sun.cpp
23
sun.cpp
@@ -20,25 +20,17 @@ cSun::~cSun() { gluDeleteQuadric( sunsphere ); }
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void
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cSun::init() {
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m_observer.timezone = -1.0 * simulation::Time.zone_bias();
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sunsphere = gluNewQuadric();
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gluQuadricNormals( sunsphere, GLU_SMOOTH );
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#ifdef _WIN32
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TIME_ZONE_INFORMATION timezoneinfo; // TODO: timezone dependant on geographic location
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::GetTimeZoneInformation( &timezoneinfo );
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m_observer.timezone = -timezoneinfo.Bias / 60.0f;
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#elif __linux__
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timespec ts;
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clock_gettime(CLOCK_REALTIME, &ts);
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time_t local = mktime(localtime(&ts.tv_sec));
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time_t utc = mktime(gmtime(&ts.tv_sec));
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m_observer.timezone = (local - utc) / 3600.0f;
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#endif
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}
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void
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cSun::update() {
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m_observer.temp = Global.AirTemperature;
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move();
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glm::vec3 position( 0.f, 0.f, -1.f );
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position = glm::rotateX( position, glm::radians( static_cast<float>( m_body.elevref ) ) );
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@@ -131,7 +123,7 @@ void cSun::move() {
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if( m_observer.minute >= 0 ) { localtime.wMinute = m_observer.minute; }
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if( m_observer.second >= 0 ) { localtime.wSecond = m_observer.second; }
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double ut =
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double localut =
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localtime.wHour
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+ localtime.wMinute / 60.0 // too low resolution, noticeable skips
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+ localtime.wSecond / 3600.0; // good enough in normal circumstances
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@@ -144,11 +136,10 @@ void cSun::move() {
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+ 275 * localtime.wMonth / 9
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+ localtime.wDay
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- 730530
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+ ( ut / 24.0 );
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+ ( localut / 24.0 );
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// Universal Coordinated (Greenwich standard) time
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m_observer.utime = ut * 3600.0;
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m_observer.utime = m_observer.utime / 3600.0 - m_observer.timezone;
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m_observer.utime = localut - m_observer.timezone;
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// perihelion longitude
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m_body.phlong = 282.9404 + 4.70935e-5 * daynumber; // w
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// orbit eccentricity
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