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use serde::{Deserialize, Serialize};
#[derive(Serialize, Deserialize, Debug, Copy, Clone)]
pub enum Interpolation {
Step = 0,
Linear = 1,
Smooth = 2,
Ramp = 3,
}
impl From<u8> for Interpolation {
fn from(raw: u8) -> Interpolation {
match raw {
0 => Interpolation::Step,
1 => Interpolation::Linear,
2 => Interpolation::Smooth,
3 => Interpolation::Ramp,
_ => Interpolation::Step,
}
}
}
impl Interpolation {
pub fn interpolate(&self, t: f32) -> f32 {
match *self {
Interpolation::Step => 0.0,
Interpolation::Linear => t,
Interpolation::Smooth => t * t * (3.0 - 2.0 * t),
Interpolation::Ramp => t.powi(2),
}
}
}