gf::Tween< T > Class Template Reference

An interpolation between two values. More...

#include <gf/Tween.h>

Public Types
using	Setter = std::function< void(const T &)>
	A setter function. More...

Public Member Functions
	Tween (T origin, T target, Setter setter, Time duration, Easing easing=Ease::linear)
	Constructor with a setter. More...
	Tween (T origin, T target, T &value, Time duration, Easing easing=Ease::linear)
	Constructor with a reference. More...
void	setOrigin (T origin)
	Change the origin of the tween. More...
constexpr T	getOrigin () const noexcept
	Get the origin of the tween. More...
void	setTarget (T target)
	Change the target of the tween. More...
constexpr T	getTarget () const noexcept
	Get the target of the tween. More...
void	setDuration (Time duration)
	Change the duration of the tween. More...
constexpr Time	getDuration () const noexcept
	Get the duration of the tween. More...
T	getValue () const
	Get the current value of the tween. More...
bool	isFinished () const
	Check if the tween is finished. More...
void	update (Time time)
	Update the tween. More...
void	restart ()
	Restart the tween. More...

Detailed Description

template<typename T>
class gf::Tween< T >

An interpolation between two values.

See also

Inbetweening - Wikipedia

Member Typedef Documentation

Setter

template<typename T >

using gf::Tween< T >::Setter = std::function<void(const T&)>

A setter function.

Constructor & Destructor Documentation

Tween() [1/2]

template<typename T >

gf::Tween< T >::Tween ( T  origin, T  target, Setter  setter, Time  duration, Easing  easing = Ease::linear  )

inline

Constructor with a setter.

Parameters

origin	The origin value
target	The target value
setter	The setter
duration	The duration of the tween
easing	The easing for the interpolation

Tween() [2/2]

template<typename T >

gf::Tween< T >::Tween ( T  origin, T  target, T &  value, Time  duration, Easing  easing = Ease::linear  )

inline

Constructor with a reference.

Parameters

origin	The origin value
target	The target value
value	A reference on the value
duration	The duration of the tween
easing	The easing for the interpolation

Member Function Documentation

getDuration()

template<typename T >

constexpr Time gf::Tween< T >::getDuration ( ) const

inlineconstexprnoexcept

Get the duration of the tween.

Returns

The current duration

getOrigin()

template<typename T >

constexpr T gf::Tween< T >::getOrigin ( ) const

inlineconstexprnoexcept

Get the origin of the tween.

Returns

The current origin

getTarget()

template<typename T >

constexpr T gf::Tween< T >::getTarget ( ) const

inlineconstexprnoexcept

Get the target of the tween.

Returns

The current target

getValue()

template<typename T >

T gf::Tween< T >::getValue ( ) const

inline

Get the current value of the tween.

Returns

The interpolated value

isFinished()

template<typename T >

bool gf::Tween< T >::isFinished ( ) const

inline

Check if the tween is finished.

Returns

True if the tween is finished

restart()

template<typename T >

void gf::Tween< T >::restart ( )

inline

Restart the tween.

setDuration()

template<typename T >

void gf::Tween< T >::setDuration ( Time  duration )

inline

Change the duration of the tween.

Parameters

duration

The new duration

setOrigin()

template<typename T >

void gf::Tween< T >::setOrigin ( T  origin )

inline

Change the origin of the tween.

Parameters

origin

The new origin

setTarget()

template<typename T >

void gf::Tween< T >::setTarget ( T  target )

inline

Change the target of the tween.

Parameters

target

The new target

update()

template<typename T >

void gf::Tween< T >::update ( Time  time )

inline

Update the tween.

Parameters

time	The time since the last update