// Wavefolder with a level meter – an example custom module for the Analog Modular Simulator.
module fold "Fold" hp 6 theme black {
  desc de "Wavefolder: faltet die Welle je nach FOLD mehrfach um – aus einem Sinus wird ein obertonreicher Klang."
  desc en "Wavefolder: folds the wave over itself depending on FOLD – a sine turns into a rich, buzzy tone."

  knob   amount "FOLD" 0..1 = 0.3
  knob   depth  "CV"   0..1 = 0.5 size s tip "CV amount"
  switch mode   "MODE" "SIN" "TRI" = 0
  in     x      "IN"   audio
  in     cv     "CV"   cv
  out    y      "OUT"  audio
  led    hot    red
  meter  level  "LEVEL"

  process {
    g = 1 + 4 * clamp(amount + cv / 10 * depth, 0, 1)
    s = x / AUDIO * g
    y = (mode == 0 ? sin(s * PI / 2) : fold(s, -1, 1)) * AUDIO
    hot = abs(y) > 4.5
    level = peak(y)
  }
}