Struct MultiKeyframeAnimation 

pub struct MultiKeyframeAnimation { /* private fields */ }

Multi-property keyframe animation

Implementations

impl MultiKeyframeAnimation

pub fn new(duration_ms: u32) -> Self

Create a new multi-property animation with given duration

pub fn keyframe( self, time: f32, properties: KeyframeProperties, easing: Easing, ) -> Self

Add a keyframe to the animation (builder pattern)

pub fn direction(self, direction: PlayDirection) -> Self

Set playback direction

pub fn fill_mode(self, fill_mode: FillMode) -> Self

Set fill mode

pub fn iterations(self, count: i32) -> Self

Set number of iterations (-1 for infinite)

pub fn delay(self, delay_ms: u32) -> Self

Set delay before animation starts

pub fn set_direction(&mut self, direction: PlayDirection)

Set playback direction (mutating)

pub fn set_fill_mode(&mut self, fill_mode: FillMode)

Set fill mode (mutating)

pub fn set_iterations(&mut self, count: i32)

Set number of iterations (mutating, -1 for infinite)

pub fn set_delay(&mut self, delay_ms: u32)

Set delay before animation starts (mutating)

pub fn set_reversed(&mut self, reversed: bool)

Set reversed state (mutating)

When true, animation plays in reverse direction for the current iteration. Used internally for Alternate direction and for AlternateReverse start.

pub fn start(&mut self)

Start the animation

pub fn stop(&mut self)

Stop the animation

pub fn is_playing(&self) -> bool

Check if the animation is currently playing

pub fn progress(&self) -> f32

Get the current progress (0.0 to 1.0)

pub fn current_properties(&self) -> KeyframeProperties

Get the current interpolated properties

pub fn tick(&mut self, dt_ms: f32)

Advance the animation by delta time (in milliseconds)

pub fn duration_ms(&self) -> u32

Get the duration in milliseconds

pub fn delay_ms(&self) -> u32

Get the delay in milliseconds

pub fn total_duration_ms(&self) -> u32

Get total duration including delay

pub fn first_keyframe(&self) -> Option<&MultiKeyframe>

Get the first keyframe (if any)

pub fn last_keyframe(&self) -> Option<&MultiKeyframe>

Get the last keyframe (if any)

pub fn keyframes(&self) -> &[MultiKeyframe]

Get all keyframes

pub fn sample_at(&self, progress: f32) -> KeyframeProperties

Sample the animation at a specific progress (0.0 to 1.0)

This is useful for externally-timed animations where you manage the progress yourself rather than using tick().

Trait Implementations

impl Clone for MultiKeyframeAnimation

fn clone(&self) -> MultiKeyframeAnimation

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for MultiKeyframeAnimation

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for MultiKeyframeAnimation

fn default() -> Self

Returns the “default value” for a type.