ditty.bpm = 50;

// --- Definir sintetizadores ---
// Sine ya existe, ¡pero por claridad lo dejamos como referencia!
// const sine = synth.def((phase, env, tick, options) => Math.sin(phase * 2 * Math.PI) * env.value);

// Definir onda cuadrada
const square = synth.def((phase, env, tick, options) => {
  // phase es un valor entre 0 y 1 (ciclo normalizado)
  const wave = (phase % 1 < 0.5) ? 1 : -1;
  return wave * env.value;
});

// Definir onda de diente de sierra (opcional)
// const saw = synth.def((phase, env, tick, options) => {
//   const wave = 2 * (phase % 1) - 1;
//   return wave * env.value;
// });

// --- Tus notas ---
const notes = [
  [0.00000, 35.0, 0.75000],
  [0.00000, 54.0, 0.06250],
  [0.12500, 54.0, 0.25000],
  [0.31250, 50.0, 0.43750],
  [0.50000, 47.0, 0.62500],
  [0.81250, 47.0, 0.93750],
  [1.18750, 52.0, 1.43750],
  [1.43750, 28.0, 2.43750],
  [1.62500, 52.0, 1.75000],
  [1.87500, 52.0, 2.00000],
  [2.06250, 56.0, 2.12500],
  [2.18750, 56.0, 2.25000],
  [2.31250, 57.0, 2.43750],
  [2.50000, 59.0, 2.75000],
  [2.75000, 33.0, 3.75000],
  [2.75000, 57.0, 2.87500],
  [2.90625, 57.0, 3.03125],
  [3.09375, 57.0, 3.28125],
  [3.28125, 52.0, 3.53125],
  [3.59375, 50.0, 3.71875],
  [4.00000, 54.0, 4.25000],
  [4.18750, 26.0, 5.18750],
  [4.43750, 54.0, 4.50000],
  [4.68750, 54.0, 4.75000],
  [4.87500, 52.0, 5.00000],
  [5.06250, 52.0, 5.18750],
  [5.31250, 54.0, 5.43750],
  [5.43750, 52.0, 5.56250],
  [5.62500, 35.0, 6.62500],
  [5.62500, 54.0, 5.68750],
  [5.81250, 54.0, 5.93750],
  [6.00000, 50.0, 6.18750],
  [6.25000, 47.0, 6.37500],
  [6.50000, 47.0, 6.62500]
];

notes.sort((a, b) => a[0] - b[0]);

let noteIndex = 0;
const totalDuration = notes[notes.length - 1][2];

// --- Loop principal ---
loop(() => {
  let currentTime = 0;
  const minStep = 0.0625; // 1/16 de nota

  while (currentTime <= totalDuration) {
    // Disparar todas las notas que empiezan en este instante
    while (noteIndex < notes.length && Math.abs(notes[noteIndex][0] - currentTime) < 1e-4) {
      const [start, midi, end] = notes[noteIndex];
      const duration = end - start;

      // ✅ Aquí usamos nuestro 'square' personalizado
      square.play(midi, {
        duration: duration,
        attack: 0.01,
        release: 0.1,
        amp: 0.7
      });

      noteIndex++;
    }

    sleep(minStep);
    currentTime += minStep;
  }

  noteIndex = 0; // Reiniciar para repetir
}, { name: 'Take On Me - Square' });