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use std::f32::consts::TAU;
use crate::{Waveform, Phase, Sample};
pub struct Osc {}
impl Osc {
pub fn generate_sample(waveform: &Waveform, phase: Phase) -> Sample {
let phase = phase;
match waveform {
Waveform::Sine => {
(TAU * phase).sin()
},
Waveform::Square => {
if phase < 0.5 {
-1.0
} else {
1.0
}
},
Waveform::Triangle => {
if phase < 0.5 {
4.0 * phase - 1.0
} else {
4.0 * (1.0 - phase) - 1.0
}
},
Waveform::Sawtooth => {
2.0 * phase - 1.0
}
}
}
}
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