cugl::scene2::RotateBy Class Reference

#include <CURotateAction.h>

Inheritance diagram for cugl::scene2::RotateBy:

Public Member Functions
	RotateBy ()
	~RotateBy ()
void	dispose ()
bool	init ()
bool	init (float delta)
bool	init (float delta, float time)
float	getDelta () const
void	setDelta (float delta)
virtual std::shared_ptr< Action >	clone () override
virtual void	update (const std::shared_ptr< SceneNode > &target, Uint64 *state, float dt) override
virtual std::string	toString (bool verbose=false) const override
Public Member Functions inherited from cugl::scene2::Action
	Action ()
	~Action ()
float	getDuration () const
void	setDuration (float time)
virtual void	load (const std::shared_ptr< SceneNode > &target, Uint64 *state)
	operator std::string () const

Static Public Member Functions
static std::shared_ptr< RotateBy >	alloc ()
static std::shared_ptr< RotateBy >	alloc (float delta)
static std::shared_ptr< RotateBy >	alloc (float delta, float time)

Protected Attributes
float	_delta
Protected Attributes inherited from cugl::scene2::Action
float	_duration

Detailed Description

This action represents a rotation by a given angle amount.

The angle is measured in radians , counter-clockwise from the x-axis.

An action contains only the definition of the animation. This can include information about the transform to use or the duration of the animation. However, it does not contain any attribute of the target. Hence, an action can be reapplied to different targets.

By itself, an action does nothing. It only specifies an action that may take place. To use an action, it must be passed to the ActionManager. The manager will create an action instance and animate that instance. While an action may be reused many times, an action instance corresponds to a single animation.

Constructor & Destructor Documentation

RotateBy()

cugl::scene2::RotateBy::RotateBy ( )

inline

Creates an uninitialized rotation action.

NEVER USE A CONSTRUCTOR WITH NEW. If you want to allocate an object on the heap, use one of the static constructors instead.

~RotateBy()

cugl::scene2::RotateBy::~RotateBy ( )

inline

Deletes this action instance, disposing all resources

Member Function Documentation

alloc() [1/3]

static std::shared_ptr<RotateBy> cugl::scene2::RotateBy::alloc ( )

inlinestatic

Returns a newly allocated, degenerate rotation action.

The rotation amount is set to 0.0, meaning no rotation takes place.

Returns

a newly allocated, degenerate rotation action.

alloc() [2/3]

static std::shared_ptr<RotateBy> cugl::scene2::RotateBy::alloc ( float  delta )

inlinestatic

Returns a newly allocated rotation action of the given angle.

When animated, this action will rotate its target by the given delta. The angle is measured in radians, counter-clockwise from the x-axis. The animation will be instantaneous.

Parameters

delta

The amount to rotate the target node

Returns

a newly allocated rotation action of the given angle.

alloc() [3/3]

static std::shared_ptr<RotateBy> cugl::scene2::RotateBy::alloc ( float  delta, float  time  )

inlinestatic

Returns a newly allocated rotation action of the given angle.

When animated, this action will rotate its target by the given delta. The angle is measured in radians, counter-clockwise from the x-axis. The animation will take place over the given number of seconds.

Parameters

delta	The amount to rotate the target node
time	The animation duration

Returns

a newly allocated rotation action of the given angle.

clone()

virtual std::shared_ptr<Action> cugl::scene2::RotateBy::clone ( )

overridevirtual

Returns a newly allocated copy of this Action.

Returns

a newly allocated copy of this Action.

Reimplemented from cugl::scene2::Action.

dispose()

void cugl::scene2::RotateBy::dispose ( )

inline

Disposes all of the resources used by this action.

A disposed action can be safely reinitialized.

getDelta()

float cugl::scene2::RotateBy::getDelta ( ) const

inline

Returns the rotation delta for this action.

Changing this value for an actively animating action can have undefined effects.

Returns

the rotation delta for this action.

init() [1/3]

bool cugl::scene2::RotateBy::init ( )

inline

Initializes a degenerate rotation action.

The rotation amount is set to 0.0, meaning no rotation takes place.

Returns

true if initialization was successful.

init() [2/3]

bool cugl::scene2::RotateBy::init ( float  delta )

inline

Initializes a rotation action of the given angle.

When animated, this action will rotate its target by the given delta. The angle is measured in radians, counter-clockwise from the x-axis. The animation will be instantaneous.

Parameters

delta

The amount to rotate the target node

Returns

true if initialization was successful.

init() [3/3]

bool cugl::scene2::RotateBy::init	(	float	delta,
		float	time
	)

Initializes a rotation action of the given angle.

When animated, this action will rotate its target by the given delta. The angle is measured in radians, counter-clockwise from the x-axis. The animation will take place over the given number of seconds.

Parameters

delta	The amount to rotate the target node
time	The animation duration

Returns

true if initialization was successful.

setDelta()

void cugl::scene2::RotateBy::setDelta ( float  delta )

inline

Sets the rotation delta for this action.

Changing this value for an actively animating action can have undefined effects.

Parameters

delta

the rotation delta for this action.

toString()

virtual std::string cugl::scene2::RotateBy::toString ( bool  verbose = false ) const

overridevirtual

Returns a string representation of the action for debugging purposes.

If verbose is true, the string will include class information. This allows us to unambiguously identify the class.

Parameters

verbose

Whether to include class information

Returns

a string representation of this action for debuggging purposes.

Reimplemented from cugl::scene2::Action.

update()

virtual void cugl::scene2::RotateBy::update ( const std::shared_ptr< SceneNode > &  target, Uint64 *  state, float  dt  )

overridevirtual

Executes an action on the given target node.

The important state of the target is stored in the given state parameter. The semantics of this state is action-dependent.

Parameters

target	The node to act on
state	The relevant node state
dt	The elapsed time to animate.

Reimplemented from cugl::scene2::Action.

Member Data Documentation

_delta

float cugl::scene2::RotateBy::_delta

protected

Difference between the final and initial angle in radians

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

• include/cugl/scene2/actions/CURotateAction.h