An interval action is an action that takes place within a certain period of time. More...

#include <ActionInterval.h>

Inherited by AccelAmplitude, AccelDeccelAmplitude, ActionCamera, ActionEase, ActionFloat, ActionTween, Animate, Animate3D, BezierBy, Blink, CardinalSplineTo, DeccelAmplitude, DelayTime, FadeTo, GridAction, JumpBy, MoveBy, ProgressFromTo, ProgressTo, Repeat, RepeatForever, ResizeBy, ResizeTo, ReverseTime, RotateBy, RotateTo, ScaleTo, Sequence, SkewTo, Spawn, TargetedAction, TintBy, and TintTo.

Public Member Functions
float	getElapsed ()
	How many seconds had elapsed since the actions started to run.

void	setAmplitudeRate (float amp)
	Sets the amplitude rate, extension in GridAction.

float	getAmplitudeRate ()
	Gets the amplitude rate, extension in GridAction.

virtual void	step (float dt) override

bool	initWithDuration (float d)
	initializes the action

Detailed Description

An interval action is an action that takes place within a certain period of time.

It has an start time, and a finish time. The finish time is the parameter duration plus the start time.

These ActionInterval actions have some interesting properties, like:

They can run normally (default)
They can run reversed with the reverse method
They can run with the time altered with the Accelerate, AccelDeccel and Speed actions.

For example, you can simulate a Ping Pong effect running the action normally and then running it again in Reverse mode.

Example:

auto action = MoveBy::create(1.0f, Vec2::ONE);

auto pingPongAction = Sequence::create(action, action->reverse(), nullptr);

ax::MoveBy::create

static MoveBy * create(float duration, const Vec2 &deltaPosition)

Creates the action.

ax::Sequence::create

static Sequence * create(FiniteTimeAction *action1,...) AX_REQUIRES_NULL_TERMINATION

Helper constructor to create an array of sequenceable actions.

ax::Vec2::ONE

static const Vec2 ONE

equals to Vec2(1,1)

Definition Vec2.h:815

Member Function Documentation

◆ getElapsed()

float getElapsed ( )

inline

How many seconds had elapsed since the actions started to run.

Returns: The seconds had elapsed since the actions started to run.

◆ setAmplitudeRate()

void setAmplitudeRate ( float amp )

Sets the amplitude rate, extension in GridAction.

Parameters

amp	The amplitude rate.

◆ getAmplitudeRate()

float getAmplitudeRate ( )

Gets the amplitude rate, extension in GridAction.

Returns: The amplitude rate.

◆ step()

virtual void step ( float dt )

overridevirtual