boomie/
instrument.rs

1use std::sync::Arc;
2use crate::waveform::WaveformType;
3use crate::effects::EffectsChain;
4
5#[derive(Debug, Clone)]
6pub struct SampleData {
7    pub samples: Arc<Vec<f32>>,
8    pub sample_rate: u32,
9}
10
11#[derive(Debug, Clone)]
12pub enum InstrumentSource {
13    Synthesized(WaveformType),
14    Sample(SampleData),
15}
16
17#[derive(Debug, Clone)]
18pub struct Instrument {
19    pub name: String,
20    pub source: InstrumentSource,
21    pub attack: f32, // ADSR envelope parameters
22    pub decay: f32,
23    pub sustain: f32,
24    pub release: f32,
25    pub volume: f32,
26    pub pitch: f32,
27    pub pan: f32, // -1.0 left, 1.0 right
28    pub detune: f32, // Pitch offset in cents for detuning 
29    pub effects: EffectsChain,
30}
31
32impl Default for Instrument {
33    fn default() -> Self {
34        Instrument {
35            name: "Boomie".to_string(),
36            source: InstrumentSource::Synthesized(WaveformType::Sine),
37            attack: 0.01,
38            decay: 0.1,
39            sustain: 0.8,
40            release: 0.2,
41            volume: 0.5,
42            pitch: 1.0,
43            pan: 0.0,
44            detune: 0.0,
45            effects: EffectsChain::default(),
46        }
47    }
48}
49
50#[derive(Debug, Clone)] // overrides
51pub struct Note {
52    pub pitch: f32,
53    pub duration: f32,
54    pub velocity: f32,
55    pub pan: Option<f32>,
56    pub slide_to: Option<f32>,
57}
58
59// Chord struc for playing multiple notes
60#[derive(Debug, Clone)]
61pub struct Chord {
62    pub pitches: Vec<f32>,
63    pub duration: f32,
64    pub velocity: f32,
65}
66
67// Sequence element enum to support notes, chords, and rests
68#[derive(Debug, Clone)]
69pub enum SequenceElement {
70    Note(Note),
71    Chord(Chord),
72    Rest(f32),
73}
boomie/instrument.rs

boomie/
instrument.rs
