Struct ParamTrack 

pub struct ParamTrack {
    pub param_name: String,
    pub keyframes: Vec<Keyframe>,
    pub loop_mode: LoopMode,
    pub pre_infinity: f32,
    pub post_infinity: f32,
}

Animation track for one named parameter.

Fields

param_name: String

Name of the parameter this track controls.

keyframes: Vec<Keyframe>

Keyframes sorted by ascending time.

loop_mode: LoopMode

Loop behaviour.

pre_infinity: f32

Value returned before the first keyframe (when loop_mode == Clamp).

post_infinity: f32

Value returned after the last keyframe (when loop_mode == Clamp).

Implementations

impl ParamTrack

pub fn new(param_name: &str) -> Self

Create a new empty track.

pub fn add_keyframe(&mut self, kf: Keyframe)

Append a keyframe (will be sorted when sort_keyframes is called, or evaluate will sort implicitly on the first call).

pub fn sort_keyframes(&mut self)

Sort keyframes by ascending time.

pub fn duration(&self) -> f32

Time of the last keyframe (or 0.0 if no keyframes).

pub fn frame_count(&self) -> usize

Number of keyframes.

pub fn evaluate(&self, t: f32) -> f32

Evaluate the track at time t.

pub fn bake(&self, sample_count: usize) -> Vec<(f32, f32)>

Sample sample_count evenly-spaced values across [0, duration]. Returns (time, value) pairs.