//draft by https://www.arduino.cc/en/Tutorial/BuiltInExamples/toneMelody
//optimized and extended by turb0ente on 2022/04/10

#include "pitches.h"
#include "preussens_gloria.h"

// iterate one time over the notes of the melody:
void setup() {

  int pauseBetweenNotes = 0; // global declaration

  
  for (int thisNote = 0; thisNote < (sizeof(melody)/sizeof(melody[0])); thisNote++) {
    /* CAUTION! sizeof() delivers size in bytes! ;-) Derivate throug any byte(size) of vector
       to calculate the note duration, take one second divided by the note type.
       e.g. quarter note = 1000/4, eighth note = 1000/8, etc. */

    // int noteDuration = 800 / noteDurations[thisNote]; // on real arduino
    int noteDuration = 1400 / noteDurations[thisNote]; // on arduino simulator wokwi (not in rythm :-|)

    if (melody[thisNote] == 0) {
      noTone(8); // pause, if freq == 0 Hz
    } else {    
      tone(8, melody[thisNote], noteDuration); // play tone, if freq =/= 0 Hz
    }

    // to distinguish the notes, set a minimum time between them.
    // The note's duration + 30% seems to work well
    if (noteDurations[thisNote] <= 4/3) {
      pauseBetweenNotes = noteDuration*1.10;  // correction for note durations > 1/2,
                                              // don't know why but necessary
    } else {    
      pauseBetweenNotes = noteDuration*1.30;  // fine for everything but too long for notes > 1/2!
    }
  delay(pauseBetweenNotes);
  }
}

void loop() {
  // do nothing
  delay(2000);
}