xmrsplayer 0.9.10

XMrsPlayer is a safe no-std soundtracker music player
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65

use crate::effect::EffectPlugin;
use crate::historical_helper::HistoricalHelper;
use core::default::Default;

#[derive(Clone, Default)]
pub struct Arpeggio {
    offset1: f32,
    offset2: f32,
}

#[derive(Clone, Default)]
pub struct EffectArpeggio {
    data: Arpeggio,
    historical: Option<HistoricalHelper>,
    tick: u8,
    in_progress: bool,
}

impl EffectArpeggio {
    pub fn new(historical: Option<HistoricalHelper>) -> Self {
        Self {
            historical,
            ..Default::default()
        }
    }
}

impl EffectPlugin for EffectArpeggio {
    fn tick0(&mut self, param1: f32, param2: f32) -> f32 {
        self.data.offset1 = param1;
        self.data.offset2 = param2;
        self.retrigger()
    }

    fn tick(&mut self) -> f32 {
        self.in_progress = true;
        self.tick += 1;
        self.value()
    }

    fn in_progress(&self) -> bool {
        self.in_progress
    }

    fn retrigger(&mut self) -> f32 {
        self.tick = 0;
        self.in_progress = false;
        self.value()
    }

    fn value(&self) -> f32 {
        match &self.historical {
            Some(historical) => match historical.arpeggio_tick(self.tick) {
                1 => self.data.offset1,
                2 => self.data.offset2,
                _ => 0.0,
            },
            None => match self.tick % 3 {
                1 => self.data.offset1,
                2 => self.data.offset2,
                _ => 0.0,
            },
        }
    }
}