35 lines
1.1 KiB
Kotlin
35 lines
1.1 KiB
Kotlin
import org.openrndr.application
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import org.openrndr.draw.loadFont
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import org.openrndr.extra.envelopes.ADSRTracker
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fun main() {
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application {
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program {
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val tracker = ADSRTracker(this)
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tracker.attack = 1.0
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tracker.decay = 0.2
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tracker.sustain = 0.8
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tracker.release = 2.0
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keyboard.keyDown.listen {
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if (it.name == "t")
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tracker.triggerOn()
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}
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keyboard.keyUp.listen {
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if (it.name == "t")
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tracker.triggerOff()
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}
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extend {
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tracker.values().forEach {
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drawer.circle(40.0, 40.0, 20.0 * it.value)
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drawer.translate(40.0, 0.0)
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}
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drawer.defaults()
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drawer.circle(drawer.bounds.center, 100.0 * tracker.value())
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drawer.fontMap = loadFont("demo-data/fonts/IBMPlexMono-Regular.ttf", 16.0)
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drawer.text("press and hold 't'", 20.0, height - 20.0)
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}
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}
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}
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} |