//in dit programma wordt het gemiddelde berekent 3 exames en bekeken of je geslaagt zou zijn
//Oef 1 uitbereiding 1
String ja_of_nee;
byte resultaat;
int dummy;
#define NOTE_B0  31
#define NOTE_C1  33
#define NOTE_CS1 35
#define NOTE_D1  37
#define NOTE_DS1 39
#define NOTE_E1  41
#define NOTE_F1  44
#define NOTE_FS1 46
#define NOTE_G1  49
#define NOTE_GS1 52
#define NOTE_A1  55
#define NOTE_AS1 58
#define NOTE_B1  62
#define NOTE_C2  65
#define NOTE_CS2 69
#define NOTE_D2  73
#define NOTE_DS2 78
#define NOTE_E2  82
#define NOTE_F2  87
#define NOTE_FS2 93
#define NOTE_G2  98
#define NOTE_GS2 104
#define NOTE_A2  110
#define NOTE_AS2 117
#define NOTE_B2  123
#define NOTE_C3  131
#define NOTE_CS3 139
#define NOTE_D3  147
#define NOTE_DS3 156
#define NOTE_E3  165
#define NOTE_F3  175
#define NOTE_FS3 185
#define NOTE_G3  196
#define NOTE_GS3 208
#define NOTE_A3  220
#define NOTE_AS3 233
#define NOTE_B3  247
#define NOTE_C4  262
#define NOTE_CS4 277
#define NOTE_D4  294
#define NOTE_DS4 311
#define NOTE_E4  330
#define NOTE_F4  349
#define NOTE_FS4 370
#define NOTE_G4  392
#define NOTE_GS4 415
#define NOTE_A4  440
#define NOTE_AS4 466
#define NOTE_B4  494
#define NOTE_C5  523
#define NOTE_CS5 554
#define NOTE_D5  587
#define NOTE_DS5 622
#define NOTE_E5  659
#define NOTE_F5  698
#define NOTE_FS5 740
#define NOTE_G5  784
#define NOTE_GS5 831
#define NOTE_A5  880
#define NOTE_AS5 932
#define NOTE_B5  988
#define NOTE_C6  1047
#define NOTE_CS6 1109
#define NOTE_D6  1175
#define NOTE_DS6 1245
#define NOTE_E6  1319
#define NOTE_F6  1397
#define NOTE_FS6 1480
#define NOTE_G6  1568
#define NOTE_GS6 1661
#define NOTE_A6  1760
#define NOTE_AS6 1865
#define NOTE_B6  1976
#define NOTE_C7  2093
#define NOTE_CS7 2217
#define NOTE_D7  2349
#define NOTE_DS7 2489
#define NOTE_E7  2637
#define NOTE_F7  2794
#define NOTE_FS7 2960
#define NOTE_G7  3136
#define NOTE_GS7 3322
#define NOTE_A7  3520
#define NOTE_AS7 3729
#define NOTE_B7  3951
#define NOTE_C8  4186
#define NOTE_CS8 4435
#define NOTE_D8  4699
#define NOTE_DS8 4978
#define REST      0

int tempo = 125;

int buzzer = 2;

int melody[] = {
  NOTE_D5,-4, NOTE_E5,-4, NOTE_A4,4, //1
  NOTE_E5,-4, NOTE_FS5,-4, NOTE_A5,16, NOTE_G5,16, NOTE_FS5,8,
  NOTE_D5,-4, NOTE_E5,-4, NOTE_A4,2,
  NOTE_A4,16, NOTE_A4,16, NOTE_B4,16, NOTE_D5,8, NOTE_D5,16,
  NOTE_D5,-4, NOTE_E5,-4, NOTE_A4,4, //repeat from 1
  NOTE_E5,-4, NOTE_FS5,-4, NOTE_A5,16, NOTE_G5,16, NOTE_FS5,8,
  NOTE_D5,-4, NOTE_E5,-4, NOTE_A4,2,
  NOTE_A4,16, NOTE_A4,16, NOTE_B4,16, NOTE_D5,8, NOTE_D5,16,
  REST,4, NOTE_B4,8, NOTE_CS5,8, NOTE_D5,8, NOTE_D5,8, NOTE_E5,8, NOTE_CS5,-8,
  NOTE_B4,16, NOTE_A4,2, REST,4, 

  REST,8, NOTE_B4,8, NOTE_B4,8, NOTE_CS5,8, NOTE_D5,8, NOTE_B4,4, NOTE_A4,8, //7
  NOTE_A5,8, REST,8, NOTE_A5,8, NOTE_E5,-4, REST,4, 
  NOTE_B4,8, NOTE_B4,8, NOTE_CS5,8, NOTE_D5,8, NOTE_B4,8, NOTE_D5,8, NOTE_E5,8, REST,8,
  REST,8, NOTE_CS5,8, NOTE_B4,8, NOTE_A4,-4, REST,4,
  REST,8, NOTE_B4,8, NOTE_B4,8, NOTE_CS5,8, NOTE_D5,8, NOTE_B4,8, NOTE_A4,4,
  NOTE_E5,8, NOTE_E5,8, NOTE_E5,8, NOTE_FS5,8, NOTE_E5,4, REST,4,
   
  NOTE_D5,2, NOTE_E5,8, NOTE_FS5,8, NOTE_D5,8, //13
  NOTE_E5,8, NOTE_E5,8, NOTE_E5,8, NOTE_FS5,8, NOTE_E5,4, NOTE_A4,4,
  REST,2, NOTE_B4,8, NOTE_CS5,8, NOTE_D5,8, NOTE_B4,8,
  REST,8, NOTE_E5,8, NOTE_FS5,8, NOTE_E5,-4, NOTE_A4,16, NOTE_B4,16, NOTE_D5,16, NOTE_B4,16,
  NOTE_FS5,-8, NOTE_FS5,-8, NOTE_E5,-4, NOTE_A4,16, NOTE_B4,16, NOTE_D5,16, NOTE_B4,16,

  NOTE_E5,-8, NOTE_E5,-8, NOTE_D5,-8, NOTE_CS5,16, NOTE_B4,-8, NOTE_A4,16, NOTE_B4,16, NOTE_D5,16, NOTE_B4,16, //18
  NOTE_D5,4, NOTE_E5,8, NOTE_CS5,-8, NOTE_B4,16, NOTE_A4,8, NOTE_A4,8, NOTE_A4,8, 
  NOTE_E5,4, NOTE_D5,2, NOTE_A4,16, NOTE_B4,16, NOTE_D5,16, NOTE_B4,16,
  NOTE_FS5,-8, NOTE_FS5,-8, NOTE_E5,-4, NOTE_A4,16, NOTE_B4,16, NOTE_D5,16, NOTE_B4,16,
  NOTE_A5,4, NOTE_CS5,8, NOTE_D5,-8, NOTE_CS5,16, NOTE_B4,8, NOTE_A4,16, NOTE_B4,16, NOTE_D5,16, NOTE_B4,16,

  NOTE_D5,4, NOTE_E5,8, NOTE_CS5,-8, NOTE_B4,16, NOTE_A4,4, NOTE_A4,8,  //23
  NOTE_E5,4, NOTE_D5,2, REST,4,
  REST,8, NOTE_B4,8, NOTE_D5,8, NOTE_B4,8, NOTE_D5,8, NOTE_E5,4, REST,8,
  REST,8, NOTE_CS5,8, NOTE_B4,8, NOTE_A4,-4, REST,4,
  REST,8, NOTE_B4,8, NOTE_B4,8, NOTE_CS5,8, NOTE_D5,8, NOTE_B4,8, NOTE_A4,4,
  REST,8, NOTE_A5,8, NOTE_A5,8, NOTE_E5,8, NOTE_FS5,8, NOTE_E5,8, NOTE_D5,8,
  
  REST,8, NOTE_A4,8, NOTE_B4,8, NOTE_CS5,8, NOTE_D5,8, NOTE_B4,8, //29
  REST,8, NOTE_CS5,8, NOTE_B4,8, NOTE_A4,-4, REST,4,
  NOTE_B4,8, NOTE_B4,8, NOTE_CS5,8, NOTE_D5,8, NOTE_B4,8, NOTE_A4,4, REST,8,
  REST,8, NOTE_E5,8, NOTE_E5,8, NOTE_FS5,4, NOTE_E5,-4, 
  NOTE_D5,2, NOTE_D5,8, NOTE_E5,8, NOTE_FS5,8, NOTE_E5,4, 
  NOTE_E5,8, NOTE_E5,8, NOTE_FS5,8, NOTE_E5,8, NOTE_A4,8, NOTE_A4,4,

  REST,-4, NOTE_A4,8, NOTE_B4,8, NOTE_CS5,8, NOTE_D5,8, NOTE_B4,8, //35
  REST,8, NOTE_E5,8, NOTE_FS5,8, NOTE_E5,-4, NOTE_A4,16, NOTE_B4,16, NOTE_D5,16, NOTE_B4,16,
  NOTE_FS5,-8, NOTE_FS5,-8, NOTE_E5,-4, NOTE_A4,16, NOTE_B4,16, NOTE_D5,16, NOTE_B4,16,
  NOTE_E5,-8, NOTE_E5,-8, NOTE_D5,-8, NOTE_CS5,16, NOTE_B4,8, NOTE_A4,16, NOTE_B4,16, NOTE_D5,16, NOTE_B4,16,
  NOTE_D5,4, NOTE_E5,8, NOTE_CS5,-8, NOTE_B4,16, NOTE_A4,4, NOTE_A4,8, 

   NOTE_E5,4, NOTE_D5,2, NOTE_A4,16, NOTE_B4,16, NOTE_D5,16, NOTE_B4,16, //40
  NOTE_FS5,-8, NOTE_FS5,-8, NOTE_E5,-4, NOTE_A4,16, NOTE_B4,16, NOTE_D5,16, NOTE_B4,16,
  NOTE_A5,4, NOTE_CS5,8, NOTE_D5,-8, NOTE_CS5,16, NOTE_B4,8, NOTE_A4,16, NOTE_B4,16, NOTE_D5,16, NOTE_B4,16,
  NOTE_D5,4, NOTE_E5,8, NOTE_CS5,-8, NOTE_B4,16, NOTE_A4,4, NOTE_A4,8,  
  NOTE_E5,4, NOTE_D5,2, NOTE_A4,16, NOTE_B4,16, NOTE_D5,16, NOTE_B4,16,
   
  NOTE_FS5,-8, NOTE_FS5,-8, NOTE_E5,-4, NOTE_A4,16, NOTE_B4,16, NOTE_D5,16, NOTE_B4,16, //45
  NOTE_A5,4, NOTE_CS5,8, NOTE_D5,-8, NOTE_CS5,16, NOTE_B4,8, NOTE_A4,16, NOTE_B4,16, NOTE_D5,16, NOTE_B4,16,
  NOTE_D5,4, NOTE_E5,8, NOTE_CS5,-8, NOTE_B4,16, NOTE_A4,4, NOTE_A4,8,  
  NOTE_E5,4, NOTE_D5,2, NOTE_A4,16, NOTE_B4,16, NOTE_D5,16, NOTE_B4,16,
  NOTE_FS5,-8, NOTE_FS5,-8, NOTE_E5,-4, NOTE_A4,16, NOTE_B4,16, NOTE_D5,16, NOTE_B4,16, //45
  
  NOTE_A5,4, NOTE_CS5,8, NOTE_D5,-8, NOTE_CS5,16, NOTE_B4,8, NOTE_A4,16, NOTE_B4,16, NOTE_D5,16, NOTE_B4,16,
  NOTE_D5,4, NOTE_E5,8, NOTE_CS5,-8, NOTE_B4,16, NOTE_A4,4, NOTE_A4,8, 

  NOTE_E5,4, NOTE_D5,2, REST,4
};
int notes = sizeof(melody) / sizeof(melody[0]) / 2;
int wholenote = (60000 * 4) / tempo;

int divider = 0, noteDuration = 0;

void setup() {
  Serial.begin(9600);//serial opstarten
}

void loop() {
  
  Serial.print("Resultaat examen: ");
  while(Serial.available()==0) {} //wachten voor input
  resultaat = Serial.parseInt(); //resultaat examen inlezen
  dummy = Serial.read();
  Serial.println(resultaat);
  switch(resultaat){
    case 0 ... 49:
      Serial.print("Bent u zeker dat u de juiste waarde ingaf J of N: ");
      while(Serial.available()==0) {} //wachten voor input
      ja_of_nee = Serial.readString(); //resultaat ja of nee inlezen
      dummy = Serial.read();
      ja_of_nee.trim();//J/N antwoord trimmen
      Serial.println(ja_of_nee);
      if (ja_of_nee == "J"){ //kijken wat het antwoord was J/N
        Serial.println("Onvoldoende");
        break;
      }
      else{
        Serial.println("probeer opnieuw");
        break;
      }
    case 50 ... 59:
      Serial.println("Geslaacht");
      break;
    case 60 ... 69: 
      Serial.println("voldoende");
      break;
    case 70 ... 79: 
      Serial.println("Goed gewerkt");
      break;
    case 80 ... 90: 
      Serial.println("Zeer goed gewerkt");
      break;
    case 91 ... 100: 
      Serial.println("Schitterent gewerkt");
      for (int thisNote = 0; thisNote < notes * 2; thisNote = thisNote + 2) {
    divider = melody[thisNote + 1];
    if (divider > 0) {
      noteDuration = (wholenote) / divider;
    } else if (divider < 0) {
      noteDuration = (wholenote) / abs(divider);
      noteDuration *= 1.5;
    }
    tone(buzzer, melody[thisNote], noteDuration * 0.9);
    delay(noteDuration);
    noTone(buzzer);
  }
      break;
    
    default: //als er een foute inpout zou zijn
      Serial.println("resultaat is zit niet tussen 0 en 100 probeer opniew");
      break;
  }
}