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Original file line number | Diff line number | Diff line change |
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@@ -1,42 +1,45 @@ | ||
import keySteps from "data/keySteps"; | ||
import { keys } from "utils"; | ||
import { stopNote, startNote } from "utils/notes"; | ||
import keySteps from "data/keySteps" | ||
import { keys } from "utils" | ||
import { stopNote, startNote } from "utils/notes" | ||
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// | ||
// Keyboard | ||
// | ||
|
||
let octave = 3; | ||
let octave = 3 | ||
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const onKeyDown = event => { | ||
if (keySteps.some(keyStep => keyStep.code === event.keyCode)) { | ||
const steps = keySteps.filter(keyStep => event.keyCode === keyStep.code)[0] | ||
.step; | ||
const note = keys[steps + 2 + octave * 12]; | ||
startNote(note); | ||
const onKeyDown = (event) => { | ||
if (keySteps.some((keyStep) => keyStep.code === event.keyCode)) { | ||
const steps = keySteps.filter( | ||
(keyStep) => event.keyCode === keyStep.code | ||
)[0].step | ||
const note = keys[steps + 2 + octave * 12] | ||
startNote(note) | ||
} | ||
}; | ||
} | ||
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||
const onKeyUp = event => { | ||
/** @todo use key or code, but not keycode */ | ||
const onKeyUp = (event) => { | ||
if (event.keyCode === 90) { | ||
// z | ||
octave = Math.max(--octave, 0); | ||
octave = Math.max(--octave, 0) | ||
} else if (event.keyCode === 88) { | ||
// x | ||
octave = Math.min(++octave, 5); | ||
} else if (keySteps.some(keyStep => keyStep.code === event.keyCode)) { | ||
const steps = keySteps.filter(keyStep => event.keyCode === keyStep.code)[0] | ||
.step; | ||
const note = keys[steps + 2 + octave * 12]; | ||
stopNote(note); | ||
octave = Math.min(++octave, 5) | ||
} else if (keySteps.some((keyStep) => keyStep.code === event.keyCode)) { | ||
const steps = keySteps.filter( | ||
(keyStep) => event.keyCode === keyStep.code | ||
)[0].step | ||
const note = keys[steps + 2 + octave * 12] | ||
stopNote(note) | ||
} | ||
}; | ||
} | ||
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export const bindKeyboardEvents = () => { | ||
window.addEventListener("keydown", onKeyDown); | ||
window.addEventListener("keyup", onKeyUp); | ||
}; | ||
window.addEventListener("keydown", onKeyDown) | ||
window.addEventListener("keyup", onKeyUp) | ||
} | ||
export const unbindKeyboardEvents = () => { | ||
window.removeEventListener("keydown", onKeyDown); | ||
window.removeEventListener("keyup", onKeyUp); | ||
}; | ||
window.removeEventListener("keydown", onKeyDown) | ||
window.removeEventListener("keyup", onKeyUp) | ||
} |