LedStripSupplierImpl.kt

LedStripSupplierImpl.kt

class LedStripSupplierImpl : LedStripSupplier {

    private val apa102: Apa102 by lazy {
        RainbowHat.openLedStrip().apply {
            direction = Apa102.Direction.REVERSED
            brightness = 7
        }
    }

    override fun getLength(): Int = RainbowHat.LEDSTRIP_LENGTH

    override fun light(colors: IntArray) {
        val writeColors = IntArray(colors.size)
        colors.forEachIndexed { index, color ->
            writeColors[index] = if (color == TURN_OFF_COLOR) Color.BLACK else color
        }

        try {
            apa102.write(writeColors)
        } catch (e: IOException) {
            e.printStackTrace()
        }
    }

    @Throws(Exception::class)
    override fun close() {
        apa102.close()
    }
}