SO3Engine
Public Member Functions | Static Public Attributes | List of all members
SO3::SUniversalClock Class Reference

#include <SO3UniversalClock.h>

Public Member Functions

 SUniversalClock ()
 
void SetTimeScale (const float &scale)
 
float GetTimeScale () const
 
void Update (const float &time)
 
void SetJulianDay (const double &value)
 
void SetGregorianDateTime (const int &year, const int &month, const int &day, const int &hour, const int &minute, const double &second)
 
void GetGregorianDateTime (int &year, int &month, int &day, int &hour, int &minute, double &second)
 
double GetJulianDay () const
 
double GetJulianDayDifference () const
 
double GetJulianSecond () const
 
double GetJulianSecondDifference () const
 

Static Public Attributes

static const double SECONDS_PER_DAY = 86400.0
 Number of seconds per day; exactly 60*60*24.
 

Detailed Description

The system's time model. This class is responsible of keeping track of current astronomical time and syncronising with ogre time.

It maintains a snapshot point: At mCurrentTime == 0 julian day was mJulianDayBase. At any time the julian day can be calculated from mCurrentTime and mJulianDayBase. This increases precission; mCurrentTime is tracked in seconds while mJulianDayBase uses days. It would be silly to track the current time in days.

Definition at line 45 of file SO3UniversalClock.h.

Constructor & Destructor Documentation

◆ SUniversalClock()

SO3::SUniversalClock::SUniversalClock ( )

Constructor.

Definition at line 37 of file SO3UniversalClock.cpp.

Member Function Documentation

◆ GetGregorianDateTime()

void SO3::SUniversalClock::GetGregorianDateTime ( int &  year,
int &  month,
int &  day,
int &  hour,
int &  minute,
double &  second 
)

Definition at line 49 of file SO3UniversalClock.cpp.

◆ GetJulianDay()

double SO3::SUniversalClock::GetJulianDay ( ) const

Get current julian day.

Definition at line 62 of file SO3UniversalClock.cpp.

◆ GetJulianDayDifference()

double SO3::SUniversalClock::GetJulianDayDifference ( ) const

Get the difference in julian day between this and the last update. This is most likely very small and unprecise.

Definition at line 69 of file SO3UniversalClock.cpp.

◆ GetJulianSecond()

double SO3::SUniversalClock::GetJulianSecond ( ) const

Get the current julian second (getJulianDay * SECONDS_PER_DAY) This is most likely very very large and unprecise.

Definition at line 75 of file SO3UniversalClock.cpp.

◆ GetJulianSecondDifference()

double SO3::SUniversalClock::GetJulianSecondDifference ( ) const

Get the difference in seconds between this and the last update. This is what you want for per-frame updates.

Definition at line 82 of file SO3UniversalClock.cpp.

◆ GetTimeScale()

Ogre::Real SO3::SUniversalClock::GetTimeScale ( ) const

Gets the time scale.

Returns
The current time scale. Defaults to 1.

Definition at line 93 of file SO3UniversalClock.cpp.

◆ SetGregorianDateTime()

void SO3::SUniversalClock::SetGregorianDateTime ( const int &  year,
const int &  month,
const int &  day,
const int &  hour,
const int &  minute,
const double &  second 
)

Set the current time as a gregorian date. This is here as an easy to use function.

Definition at line 43 of file SO3UniversalClock.cpp.

◆ SetJulianDay()

void SO3::SUniversalClock::SetJulianDay ( const double &  value)

Set the current time as a julian day. Set the current time as a julian day, which you build using one of the static getJulianDayFromXXX functions. Defaults to J2000 (noon january 1st)

Definition at line 55 of file SO3UniversalClock.cpp.

◆ SetTimeScale()

void SO3::SUniversalClock::SetTimeScale ( const float &  scale)

Sets the time scale.

Parameters
scaleThe new time scale. If negative, time will move backwards; 2.0 means double speed...

Definition at line 88 of file SO3UniversalClock.cpp.

◆ Update()

void SO3::SUniversalClock::Update ( const float &  time)

Updates the clock.

Parameters
timeThe time to be added to the clock. It will beaffected by the time scale.

Definition at line 98 of file SO3UniversalClock.cpp.

Member Data Documentation

◆ SECONDS_PER_DAY

const double SO3::SUniversalClock::SECONDS_PER_DAY = 86400.0
static

Number of seconds per day; exactly 60*60*24.

Definition at line 48 of file SO3UniversalClock.h.


The documentation for this class was generated from the following files: