ELEC Hero!!!

// Define your pitch constants
// these will be notes that can be used to make a song
#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_1 260
#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

// Set Buzzer Pin
int buzzerPin = 19;
// Set Tilt Switch
int tiltSwitch = 18;
// Set LED Pins
int ledPins[] = {5,4,3,2}; //{LED #0, LED #1, LED #2, LED #3}
// Set Button Pins
int buttonPins[] = {13,14,15,17}; //{button 0, button 1, button 2, button 3}


// Next we will set up an Array to store our notes in the melody
// An array is way to store data in a comma seperated structure.

// Birthday melody
int birthday[] = {
   NOTE_C4_1, NOTE_C4, NOTE_D4, NOTE_C4, NOTE_F4,NOTE_E4,
   NOTE_C4_1, NOTE_C4, NOTE_D4, NOTE_C4, NOTE_G4, NOTE_F4,
   NOTE_C4_1, NOTE_C4, NOTE_C5, NOTE_A4, NOTE_F4, NOTE_F4,
   NOTE_E4, NOTE_D4,   NOTE_AS4, NOTE_AS4, NOTE_A4,
   NOTE_F4, NOTE_G4, NOTE_F4};

// Birthday LED order
int birthdayLEDs[] = {
  0,0,1,0,3,2,
  0,0,1,0,3,2,
  0,0,3,3,2,2,
  1,0, 3,3,2,
  1,2,1};

// # of notes in Birthday Song
int birthdaySize = 26;

// Ring around the Rosy melody
int rosy[] = {
  NOTE_G4, NOTE_G4, NOTE_E4, 
  NOTE_A4, NOTE_G4, NOTE_E4, 
  NOTE_G4, NOTE_G4, NOTE_E4, 
  NOTE_A4, NOTE_G4, NOTE_E4,
  NOTE_G4, NOTE_E4, NOTE_G4, 
  NOTE_E4, NOTE_E4, NOTE_G4, 
  NOTE_G4, NOTE_C4
};

// Ring around the Rosy LED order
int rosyLEDs[] = {
  2, 2, 1, 3, 2, 1, 
  2, 2, 1, 3, 2, 1,
  2, 1, 2, 1, 1,
  2, 2, 0
};

// # of notes in Ring around the Rosy
int rosySize = 20;

// Forever Young melody
int forever[] = {
NOTE_G5, NOTE_A5, NOTE_G5,
NOTE_G5, NOTE_D5, NOTE_E5,
NOTE_F5,NOTE_E5,NOTE_E5, NOTE_G5, 
NOTE_F5, NOTE_E5,
NOTE_D5, NOTE_D5, NOTE_D5, 
NOTE_D5, NOTE_D5, NOTE_E5, 
NOTE_F5, NOTE_E5, NOTE_D5,
NOTE_C5, NOTE_A4, NOTE_C5, 
NOTE_C5,NOTE_A4, NOTE_D5, 
NOTE_E5, NOTE_D5
};

// Forever Young LED order
int foreverLEDs[] = {
  2, 3, 2, 2, 
  0, 1, 2, 1, 1, 3,
  2, 1, 1, 1, 1, 1, 
  1, 2, 3, 2, 1, 0, 
  2, 3, 3, 2, 1, 2, 
  1  
};

// # of notes in Forever Young
int foreverSize = 29;


/* In the setup function we will set our buzzer pin and LEDS to
 * output and set the buttons and tiltSwitch to input
 */
void setup()
{
  Serial.begin(9600); 
  // set up buzzer as output
  pinMode(buzzerPin, OUTPUT); // set buzzerPin to OUTPUT

  // set up LEDs as outputs
    for(int i = 0; i < 4; i++){
      pinMode(ledPins[i], OUTPUT);
    }

  // set up buttons as inputs
  for(int a = 0; a < 4; a++){
    pinMode(buttonPins[a], INPUT_PULLUP);
  }

  // set up tilt switch as input
  pinMode(tiltSwitch, INPUT_PULLUP);
}

/* In the loop section we will use the tone function to
 * enable enable the sound. Tone needs arguments for the
 * pin of the buzzer, the note. The note duration is optional.
 */
int play_song(int song[], int LEDs[], int song_size)
{
  int LEDnum;
  for (int thisNote = 0; thisNote < song_size; thisNote++) {
    // turn on the LED
    LEDnum = LEDs[thisNote];
    digitalWrite(ledPins[LEDnum], HIGH); // turn LED on
    
    // wait until button is pushed to play note
    while(digitalRead(buttonPins[LEDnum]) == 1){
      if(digitalRead(buttonPins[LEDnum]) == 0) {
        break;
        }
      }
    // play the note for how long the button is pressed
    while(digitalRead(buttonPins[LEDnum]) == 0){
      tone(buzzerPin, song[thisNote]);
    }
    noTone(buzzerPin); 

    // turn the LED off
    digitalWrite(ledPins[LEDnum], LOW); // turn LED off
    delay(100);

  }
  //wait for 7 seconds for them to decide to restart
  delay(1000);
  for(int i = 0; i < 500; i ++){
    delay(10);
    if(digitalRead(tiltSwitch) == 1){
        return 0; //returns 0 if user decides to restart
    }
  }
  return 1;
}
void loop(){
  int returned  = 0;
  do
    returned = play_song(forever, foreverLEDs, foreverSize);
  while(returned == 0);
  do
    returned = play_song(birthday, birthdayLEDs, birthdaySize);
  while(returned == 0);
  do
    returned = play_song(rosy, rosyLEDs, rosySize);
  while(returned == 0);
}