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FloatDecayAnimationSpec

cranpose_animation::decay_spec

Trait FloatDecayAnimationSpec 

Source 
pub trait FloatDecayAnimationSpec {
    // Required methods
    fn abs_velocity_threshold(&self) -> f32;
    fn get_value_from_nanos(
        &self,
        play_time_nanos: i64,
        initial_value: f32,
        initial_velocity: f32,
    ) -> f32;
    fn get_velocity_from_nanos(
        &self,
        play_time_nanos: i64,
        initial_value: f32,
        initial_velocity: f32,
    ) -> f32;
    fn get_duration_nanos(
        &self,
        initial_value: f32,
        initial_velocity: f32,
    ) -> i64;
    fn get_target_value(&self, initial_value: f32, initial_velocity: f32) -> f32;
}
Expand description

Trait for decay animation specifications.

A decay animation has no fixed target - it starts with a velocity and decelerates to zero. The final position depends on the initial velocity.

Required Methods§

Source

fn abs_velocity_threshold(&self) -> f32

Velocity threshold below which animation is considered finished.

Source

fn get_value_from_nanos( &self, play_time_nanos: i64, initial_value: f32, initial_velocity: f32, ) -> f32

Get position at a given time.

Source

fn get_velocity_from_nanos( &self, play_time_nanos: i64, initial_value: f32, initial_velocity: f32, ) -> f32

Get velocity at a given time.

Source

fn get_duration_nanos(&self, initial_value: f32, initial_velocity: f32) -> i64

Get total animation duration in nanoseconds.

Source

fn get_target_value(&self, initial_value: f32, initial_velocity: f32) -> f32

Get the target value (final position) of the animation.

Dyn Compatibility§

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors§