/*
  LED Alarm Box
  Turns on LEDs in a pattern, then turns on an audible alarm.


  This example code is in the public domain.

  modified 5 Feb 2016
  by Dylan Boyd
 */
// TONES  ==========================================
// Defining the tones used for the alarm
#define C    1911
#define C1    1804
#define D    1703
#define Eb    1607
#define E    1517
#define F    1432
#define F1    1352
#define G    1276
#define Ab    1204
#define A    1136
#define Bb    1073
#define B    1012
#define c       955
#define c1      902
#define d       851
#define eb      803
#define e       758
#define f       716
#define f1      676
#define g       638
#define ab      602
#define a       568
#define bb      536
#define b       506
#define p       0
#define  c     3830    // 261 Hz
#define  d     3400    // 294 Hz
#define  e     3038    // 329 Hz
#define  f     2864    // 349 Hz
#define  g     2550    // 392 Hz
#define  a     2272    // 440 Hz
#define  b     2028    // 493 Hz
#define  C     1912    // 523 Hz
// Define a special note, 'R', to represent a rest
#define  R     0

// SETUP ============================================
// Setting up the buzzer and photocell
int speakerOut = 8;
int photocellPin = 0;     // the cell and 10K pulldown are connected to a0
int photocellReading;     // the analog reading from the analog resistor divider

// the setup function runs once when you press reset or power the board
void setup() {
  // initialize LED Pins, Speaker Pin, and starting the Serial.
  Serial.begin(9600);
  pinMode(5, OUTPUT);
  pinMode(6, OUTPUT);
  pinMode(7, OUTPUT);
  pinMode(speakerOut, OUTPUT);
}
// initalizing the beats of the song and the melody
int melody[] = {e, e, e, c, e, g, G, c, G, E, A, B, Bb, A, G, e, g, a, f, g, e, c, d, B, c};
int beats[] = {6, 12, 12, 6, 12, 24, 24, 18, 18, 18, 12, 12, 6, 12, 8, 8, 8, 12, 6, 12, 12, 6, 6, 6, 12};
int MAX_COUNT = sizeof(melody) / 2; // Melody length, for looping.
// Set overall tempo
long tempo = 10000;
// Set length of pause between notes
int pause = 1000;
// Loop variable to increase Rest length
int rest_count = 100; //<-BLETCHEROUS HACK; See NOTES

// Initialize core variables for song
int tone_ = 0;
int beat = 0;
long duration  = 0;

// PLAY TONE  ==============================================
// Pulse the speaker to play a tone for a particular duration
void playTone() {
  long elapsed_time = 0;
  if (tone_ > 0) { // if this isn't a Rest beat, while the tone has
    //  played less long than 'duration', pulse speaker HIGH and LOW
    while (elapsed_time < duration) {

      digitalWrite(speakerOut,HIGH);
      delayMicroseconds(tone_ / 2);

      // DOWN
      digitalWrite(speakerOut, LOW);
      delayMicroseconds(tone_ / 2);

      // Keep track of how long we pulsed
      elapsed_time += (tone_);
    }
  }
  else { // Rest beat; loop times delay
    for (int j = 0; j < rest_count; j++) { // See NOTE on rest_count
      delayMicroseconds(duration);
    }
  }
}

// the loop function runs over and over again forever
void loop() {
  photocellReading = analogRead(photocellPin);

  Serial.print("Analog reading = ");
  Serial.print(photocellReading);     // the raw analog reading

  // We'll have a few threshholds, qualitatively determined
  if (photocellReading < 10) {
    Serial.println(" - Dark");
  } else if (photocellReading < 200) {
    Serial.println(" - Dim");
  } else if (photocellReading < 500) {
    Serial.println(" - Light");
  } else if (photocellReading < 800) {
    Serial.println(" - Bright");
  } else {
    Serial.println(" - Very bright");
  }
  delay(1000);

  if(photocellReading > 500){ //if room isn't dark enough, delay
  delay(10000);
  }
if (photocellReading < 600) // if room is dark, light LEDs in pattern
 { //LED PATTERN:
  digitalWrite(5, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(200);              // wait for a second
  digitalWrite(5, LOW);    // turn the LED off by making the voltage LOW
  delay(200);              // wait for a second
  digitalWrite(6, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(200);              // wait for a second
  digitalWrite(6, LOW);    // turn the LED off by making the voltage LOW
  delay(200);              // wait for a second
  digitalWrite(7, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(200);              // wait for a second
  digitalWrite(7, LOW);    // turn the LED off by making the voltage LOW
  delay(1000);              // wait for a second
  digitalWrite(5, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(200);              // wait for a second
  digitalWrite(5, LOW);    // turn the LED off by making the voltage LOW
  delay(200);              // wait for a second
  digitalWrite(6, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(200);              // wait for a second
  digitalWrite(6, LOW);    // turn the LED off by making the voltage LOW
  delay(200);              // wait for a second
  digitalWrite(7, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(200);              // wait for a second
  digitalWrite(7, LOW);    // turn the LED off by making the voltage LOW
  delay(1000);              // wait for a second
  digitalWrite(5, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(200);              // wait for a second
  digitalWrite(5, LOW);    // turn the LED off by making the voltage LOW
  delay(200);              // wait for a second
  digitalWrite(6, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(200);              // wait for a second
  digitalWrite(6, LOW);    // turn the LED off by making the voltage LOW
  delay(200);              // wait for a second
  digitalWrite(7, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(200);              // wait for a second
  digitalWrite(7, LOW);    // turn the LED off by making the voltage LOW
  delay(1000);              // wait for a second

// Set overall tempo
long tempo = 10000;
// Set length of pause between notes
int pause = 1000;
// Loop variable to increase Rest length
int rest_count = 100; //<-BLETCHEROUS HACK; See NOTES

// Initialize core variables
int tone_ = 0;
int beat = 0;
long duration  = 0;

  }


// LET THE WILD RUMPUS BEGIN SUPER MARIO! =============================
  // Set up a counter to pull from melody[] and beats[]
  for (int i=0; i<MAX_COUNT; i++) {
    tone_ = melody[i];
    beat = beats[i];

    duration = beat * tempo; // Set up timing

    playTone();
    // A pause between notes...
    delayMicroseconds(pause);
  }
  }