Struct AnimationGroup 

pub struct AnimationGroup { /* private fields */ }

A collection of named animations with shared lifecycle control.

Implements Animation — value() returns the average progress of all members, and is_complete() is true when every member has finished.

Implementations

impl AnimationGroup

pub fn new() -> Self

Create an empty animation group.

pub fn add(self, label: &str, animation: impl Animation + 'static) -> Self

Add a named animation to the group (builder pattern).

If label already exists, the previous animation is replaced.

pub fn insert(&mut self, label: &str, animation: Box<dyn Animation>)

Insert a named animation (mutating).

If label already exists, the previous animation is replaced.

pub fn remove(&mut self, label: &str) -> bool

Remove a named animation. Returns true if found and removed.

impl AnimationGroup

pub fn start_all(&mut self)

Reset all animations to their initial state.

pub fn cancel_all(&mut self)

Reset all animations (alias for consistency with “cancel” semantics).

pub fn len(&self) -> usize

Number of animations in the group.

pub fn is_empty(&self) -> bool

Whether the group is empty.

pub fn all_complete(&self) -> bool

Whether every animation in the group has completed.

pub fn overall_progress(&self) -> f32

Average progress across all animations (0.0–1.0).

Returns 0.0 for an empty group.

pub fn get(&self, label: &str) -> Option<&dyn Animation>

Get a reference to a named animation’s value.

pub fn get_mut(&mut self, label: &str) -> Option<&mut Box<dyn Animation>>

Get a mutable reference to a named animation.

pub fn get_at(&self, index: usize) -> Option<&dyn Animation>

Get a reference to an animation by index.

pub fn iter(&self) -> impl Iterator<Item = (&str, &dyn Animation)>

Iterator over (label, animation) pairs.

pub fn labels(&self) -> impl Iterator<Item = &str>

Labels of all animations in the group.

Trait Implementations

impl Animation for AnimationGroup

fn tick(&mut self, dt: Duration)

Advance the animation by dt.

fn is_complete(&self) -> bool

Whether the animation has reached its end.

fn value(&self) -> f32

Current output value, clamped to [0.0, 1.0].

fn reset(&mut self)

Reset the animation to its initial state.

fn overshoot(&self) -> Duration

Time elapsed past completion. Used by composition types to forward remaining time (e.g., Sequence forwards overshoot from first to second). Returns Duration::ZERO for animations that never complete.

impl Debug for AnimationGroup

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

Formats the value using the given formatter.

impl Default for AnimationGroup

fn default() -> Self

Returns the “default value” for a type.