66 lines
1.8 KiB
Markdown
66 lines
1.8 KiB
Markdown
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# On Event
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Raises events for melodies or music events.
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```sig
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music.onEvent(MusicEvent.MelodyNotePlayed, () => {})
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```
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## Parameters
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* ``value`` the kind of event
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* ``handler`` the code to run when the event is raised.
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## Example
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This example prints all the events to the serial output.
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```blocks
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music.onEvent(MusicEvent.MelodyRepeated, () => {
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serial.writeLine("melody repeated")
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})
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music.onEvent(MusicEvent.MelodyEnded, () => {
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serial.writeLine("melody ended")
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})
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music.onEvent(MusicEvent.MelodyStarted, () => {
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serial.writeLine("melody started")
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})
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music.onEvent(MusicEvent.MelodyRepeated, () => {
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serial.writeLine("background melody repeated")
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})
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music.onEvent(MusicEvent.BackgroundMelodyStarted, () => {
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serial.writeLine("background started")
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})
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music.onEvent(MusicEvent.BackgroundMelodyEnded, () => {
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serial.writeLine("background ended")
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})
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music.onEvent(MusicEvent.BackgroundMelodyPaused, () => {
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serial.writeLine("background paused")
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})
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music.onEvent(MusicEvent.BackgroundMelodyResumed, () => {
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serial.writeLine("background resumed")
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})
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music.onEvent(MusicEvent.BackgroundMelodyRepeated, () => {
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serial.writeLine("background repeated")
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})
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input.onButtonPressed(Button.A, () => {
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music.beginMelody(music.builtInMelody(Melodies.BaDing), MelodyOptions.Once)
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})
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music.setTempo(100)
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music.beginMelody(music.builtInMelody(Melodies.Ringtone), MelodyOptions.ForeverInBackground)
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```
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## Background melody
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The events related to background melody get triggered by a melody that is played inside a run in background block.
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```
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control.inBackground(function () {
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basic.pause(Math.randomRange(0, 5000))
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music.beginMelody(music.builtInMelody(Melodies.Entertainer), MelodyOptions.Once)
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})
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music.onEvent(MusicEvent.BackgroundMelodyStarted, function () {
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basic.showIcon(IconNames.EigthNote)
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})
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```
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