aboutsummaryrefslogtreecommitdiffstats
path: root/quantum/process_keycode/process_music.c
blob: c8f3ddb9001c25186eeeba05cbb15440c3a39ee4 (plain) (blame)
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
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
#include "process_music.h"

bool music_activated = false;
uint8_t starting_note = 0x0C;
int offset = 7;

// music sequencer
static bool music_sequence_recording = false;
static bool music_sequence_playing = false;
static float music_sequence[16] = {0};
static uint8_t music_sequence_count = 0;
static uint8_t music_sequence_position = 0;

static uint16_t music_sequence_timer = 0;
static uint16_t music_sequence_interval = 100;

bool process_music(uint16_t keycode, keyrecord_t *record) {

    if (keycode == AU_ON && record->event.pressed) {
      audio_on();
      return false;
    }

    if (keycode == AU_OFF && record->event.pressed) {
      audio_off();
      return false;
    }

    if (keycode == AU_TOG && record->event.pressed) {
        if (is_audio_on())
        {
            audio_off();
        }
        else
        {
            audio_on();
        }
      return false;
    }

    if (keycode == MU_ON && record->event.pressed) {
        music_on();
        return false;
    }

    if (keycode == MU_OFF && record->event.pressed) {
        music_off();
        return false;
    }

    if (keycode == MU_TOG && record->event.pressed) {
        if (music_activated)
        {
            music_off();
        }
        else
        {
            music_on();
        }
        return false;
    }

    if (keycode == MUV_IN && record->event.pressed) {
        voice_iterate();
        music_scale_user();
        return false;
    }

    if (keycode == MUV_DE && record->event.pressed) {
        voice_deiterate();
        music_scale_user();
        return false;
    }

    if (music_activated) {

      if (keycode == KC_LCTL && record->event.pressed) { // Start recording
        stop_all_notes();
        music_sequence_recording = true;
        music_sequence_playing = false;
        music_sequence_count = 0;
        return false;
      }

      if (keycode == KC_LALT && record->event.pressed) { // Stop recording/playing
        stop_all_notes();
        music_sequence_recording = false;
        music_sequence_playing = false;
        return false;
      }

      if (keycode == KC_LGUI && record->event.pressed) { // Start playing
        stop_all_notes();
        music_sequence_recording = false;
        music_sequence_playing = true;
        music_sequence_position = 0;
        music_sequence_timer = 0;
        return false;
      }

      if (keycode == KC_UP) {
        if (record->event.pressed)
            music_sequence_interval-=10;
        return false;
      }

      if (keycode == KC_DOWN) {
        if (record->event.pressed)
            music_sequence_interval+=10;
        return false;
      }

      float freq = ((float)220.0)*pow(2.0, -5.0)*pow(2.0,(starting_note + SCALE[record->event.key.col + offset])/12.0+(MATRIX_ROWS - record->event.key.row));
      if (record->event.pressed) {
        play_note(freq, 0xF);
        if (music_sequence_recording) {
          music_sequence[music_sequence_count] = freq;
          music_sequence_count++;
        }
      } else {
        stop_note(freq);
      }

      if (keycode < 0xFF) // ignores all normal keycodes, but lets RAISE, LOWER, etc through
        return false;
    }
  return true;
}

bool is_music_on(void) {
    return (music_activated != 0);
}

void music_toggle(void) {
    if (!music_activated) {
        music_on();
    } else {
        music_off();
    }
}

void music_on(void) {
    music_activated = 1;
    music_on_user();
}

void music_off(void) {
    music_activated = 0;
    stop_all_notes();
}


__attribute__ ((weak))
void music_on_user() {}

__attribute__ ((weak))
void audio_on_user() {}

__attribute__ ((weak))
void music_scale_user() {}

void matrix_scan_music(void) {
  if (music_sequence_playing) {
    if ((music_sequence_timer == 0) || (timer_elapsed(music_sequence_timer) > music_sequence_interval)) {
      music_sequence_timer = timer_read();
      stop_note(music_sequence[(music_sequence_position - 1 < 0)?(music_sequence_position - 1 + music_sequence_count):(music_sequence_position - 1)]);
      play_note(music_sequence[music_sequence_position], 0xF);
      music_sequence_position = (music_sequence_position + 1) % music_sequence_count;
    }
  }
}