Module lay_rs::engine::animation

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§Timing functions for animations:

  • Easing: a quadratic bezier curve timing defined by two points and a duration
  • Spring: a physics-based spring timing, emulating a dumped harmonic oscillator

§Helper functions:

  • Transition::ease_in(duration: f32) -> Transition
  • Transition::ease_out(duration: f32) -> Transition
  • Transition::ease_in_out(duration: f32) -> Transition
  • Transition::ease_out_quad(duration: f32) -> Transition
  • Transition::ease_in_quad(duration: f32) -> Transition
  • Transition::ease_in_out_quad(duration: f32) -> Transition
  • Transition::spring(duration: f32, bounce: f32) -> Transition
  • Transition::spring_with_velocity(duration: f32, bounce: f32, velocity: f32) -> Transition …

§Usage

// use default easing function
layer.set_position((100.0, 100.0), Transition::ease_in(0.3));

// spring helper with perceptual duration and bounce
layer.set_position((100.0, 100.0), Transition::spring(0.3, 0.3));

// spring helper with perceptual duration and initial velocity
layer.set_position((100.0, 100.0), Transition::spring_with_velocity(0.3, 0.3, 0.3));

§Advanced Easing usage

// use custom set a delay and easing function
layer.set_position((100.0, 100.0), Transition {
    delay: 0.1,
    timing: TimingFunction::ease_in_out_quad(1.0)
});
// use predefined easing functions
layer.set_position((100.0, 100.0),  Transition {
    delay: 0.0,
    timing: TimingFunction::Easing(Easing::ease_in_out_quad(), 0.3)
});

// access the easing parameters directly
layer.set_position((100.0, 100.0), Transition {
   delay: 0.0,
   timing: TimingFunction::Easing(Easing{x1: 0.0, y1: 0.0, x2: 1.0, y2: 1.0}, 0.3)
});

Structs§

  • Animation
    Animation is a data structure that contains the information needed to animate a property.
  • Easing
    This module contains the animation related data structures
  • Spring
  • Transition
    Transition is a data structure that contains the information needed to create an animation that can start at a later time.

Enums§