ZacharyZhang-NY
0e21870b64
An audio player with transport, scrubber and volume; an equalizer and a visualizer; a playlist; a cassette, cartridge and record that turn while they play and hold where they stop; piano keys, a step sequencer and a tracker you can type into; a waveform, a 16:9 video frame, an image compare, a gallery, a filmstrip, a record button and an FM tuner. input exports SlideBase, the undrawn rail its sliders share; the gallery treats exported Bases as building blocks, not components. pixel's micro font gains '#' for notes like C#4. pixel.Pad and the slide rail read input only while their base is enabled, so Inert or a fresh Disabled stops a drag or a key already sent. AGENTS records why a drawn container keeps the DISABLED description: MyGo paints a disabled subtree at half opacity.
35 lines
839 B
Go
35 lines
839 B
Go
package media
|
||
|
||
import (
|
||
"fmt"
|
||
|
||
"github.com/egoist/mygo/ui"
|
||
)
|
||
|
||
// keyboard plays C4–C5: A–K white, WETYU black.
|
||
var keyboard = [13]struct {
|
||
key ui.Key
|
||
letter string
|
||
}{
|
||
{ui.KeyA, "A"}, {ui.KeyW, "W"}, {ui.KeyS, "S"}, {ui.KeyE, "E"}, {ui.KeyD, "D"}, {ui.KeyF, "F"}, {ui.KeyT, "T"},
|
||
{ui.KeyG, "G"}, {ui.KeyY, "Y"}, {ui.KeyH, "H"}, {ui.KeyU, "U"}, {ui.KeyJ, "J"}, {ui.KeyK, "K"},
|
||
}
|
||
|
||
var names = [12]string{"C", "C#", "D", "D#", "E", "F", "F#", "G", "G#", "A", "A#", "B"}
|
||
|
||
// note names the semitone above C4, like "C#4".
|
||
func note(semi int) string {
|
||
return fmt.Sprintf("%s%d", names[semi%12], 4+semi/12)
|
||
}
|
||
|
||
// played are the semitones whose letters e heard this frame.
|
||
func played(e *ui.Element) []int {
|
||
var out []int
|
||
for semi, kb := range keyboard {
|
||
if e.Shortcut(0, kb.key) {
|
||
out = append(out, semi)
|
||
}
|
||
}
|
||
return out
|
||
}
|