core/src/jvmMain/kotlin/coffee/liz/rookery/audio/ChimePlayer.kt


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package coffee.liz.rookery.audio

import javax.sound.sampled.AudioFormat
import javax.sound.sampled.AudioSystem

/** Plays [Chime] PCM on a daemon thread. Silently does nothing if there's no audio device. */
object ChimePlayer {
    fun play(notes: List<Chime.Note>) {
        val pcm = Chime.render(notes)
        Thread {
            runCatching {
                val format = AudioFormat(Chime.SAMPLE_RATE.toFloat(), 16, 1, true, false)
                val bytes = ByteArray(pcm.size * 2)
                for (i in pcm.indices) { bytes[2 * i] = pcm[i].toByte(); bytes[2 * i + 1] = (pcm[i].toInt() shr 8).toByte() }
                AudioSystem.getSourceDataLine(format).use { line ->
                    line.open(format); line.start(); line.write(bytes, 0, bytes.size); line.drain()
                }
            }
        }.apply { isDaemon = true; name = "chime" }.start()
    }
}