Enum TransitionPhase 

pub enum TransitionPhase {
    Settled,
    MoveStart,
    Moving,
    MoveEnd,
}

Where in a camera motion transition the current frame sits.

This is a strict state machine updated every frame by the view system.

State transitions

Previous	Current motion	Next
Settled	Stable	Settled
Settled	Moving/Unknown	MoveStart
MoveStart	Moving/Unknown	Moving
MoveStart	Stable	MoveEnd
Moving	Moving/Unknown	Moving
Moving	Stable	MoveEnd
MoveEnd	Stable	Settled
MoveEnd	Moving/Unknown	MoveStart

MoveStart and MoveEnd each last exactly one frame (edge-triggered). Settled and Moving persist across multiple frames (level-triggered).

Variants

Settled

No transition in progress. Camera is (or has been) stable.

MoveStart

First frame of detected motion.

Moving

Camera is mid-move.

MoveEnd

First frame of detected stability after motion.

Implementations

impl TransitionPhase

pub fn next(self, is_moving: bool) -> Self

Compute the next phase given the current motion state.

is_moving should be true if the camera motion state is Moving or Unknown (conservative: unknown = potentially moving).

Trait Implementations

impl Clone for TransitionPhase

fn clone(&self) -> TransitionPhase

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TransitionPhase

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

Formats the value using the given formatter.

impl Hash for TransitionPhase

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for TransitionPhase

fn eq(&self, other: &TransitionPhase) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for TransitionPhase

impl Eq for TransitionPhase

impl StructuralPartialEq for TransitionPhase