/////////////////////////////
//      Airsoft Bomb       //
// by Malthe Falkenstjerne //
/////////////////////////////

#include <Keypad.h>
#include <LiquidCrystal.h>
#define pound 14


#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

int Scount = 12; // count seconds
int Mcount = 10; // count minutes
int Hcount = 0; // count hours
int DefuseTimer = 0; // set timer to 0

long secMillis = 0; // store last time for second add
long interval = 1000; // interval for seconds

char password[4]; // number of characters in our password
int currentLength = 0; //defines which number we are currently writing
int i = 0;
char entered[4];

int ledPin = 4; //red led
int ledPin2 = 3; //yellow led
int ledPin3 = 2; //green led

LiquidCrystal lcd(7,8,10,11,12,13); // the pins we use on the LCD

const byte ROWS = 4; //four rows
const byte COLS = 3; //three columns
char keys[ROWS][COLS] = {
  {'1','2','3'},
  {'4','5','6'},
  {'7','8','9'},
  {'*','0','#'}
};
byte rowPins[ROWS] = {5, A5, A4, A2}; //connect to the row pinouts of the keypad
byte colPins[COLS] = {A1, A0, A3}; //connect to the column pinouts of the keypad

Keypad keypad = Keypad( makeKeymap(keys), rowPins, colPins, ROWS, COLS );


void setup(){
  pinMode(ledPin, OUTPUT); // sets the digital pin as output
  pinMode(ledPin2, OUTPUT); // sets the digital pin as output
  pinMode(ledPin3, OUTPUT); // sets the digital pin as output
  pinMode(9,OUTPUT);
  lcd.begin(16, 2);
  Serial.begin(9600);
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("Enter Code: ");
  while (currentLength < 4)
  {
    lcd.setCursor(currentLength + 6, 1);
    lcd.cursor();
    char key = keypad.getKey();
    key == NO_KEY;
    if (key != NO_KEY)
    {
      if ((key != '*')&&(key != '#'))
      {
      lcd.print(key);
      password[currentLength] = key;
      currentLength++;
      tone(NOTE_C6, 200);
      }
    }
  }

  if (currentLength == 4)
  {
    delay(500);
    lcd.noCursor();
    lcd.clear();
    lcd.home();
    lcd.print("You've Entered: ");
    lcd.setCursor(6,1);
    lcd.print(password[0]);
    lcd.print(password[1]);
    lcd.print(password[2]);
    lcd.print(password[3]);

    tone(NOTE_E6, 200);
    delay(3000);
    lcd.clear();
    currentLength = 0;
  }
}

void loop()
{
  timer();
  char key2 = keypad.getKey(); // get the key

  if (key2 == '*')
    {
      lcd.clear();
      lcd.setCursor(0,0);
      lcd.print("Code: ");

      while (currentLength < 4)
        {

          timer();

          char key2 = keypad.getKey();
          if (key2 == '#')
            {
              currentLength = 0;
              lcd.clear();
              lcd.setCursor(0,0);
              lcd.print("Code: ");
            }
          else
          if (key2 != NO_KEY)
            {

              lcd.setCursor(currentLength + 7, 0);
              lcd.cursor();

              lcd.print(key2);
              entered[currentLength] = key2;
              currentLength++;
              tone(NOTE_C6, 200);
              delay(100);
              lcd.noCursor();
              lcd.setCursor(currentLength + 6, 0);
              lcd.print("*");
              lcd.setCursor(currentLength + 7, 0);
              lcd.cursor();
            }
        }

      if (currentLength == 4)
        {
          if (entered[0] == password[0] && entered[1] == password[1] && entered[2] == password[2] && entered[3] == password[3])
            {
              lcd.noCursor();
              lcd.clear();
              lcd.home();
              lcd.print("Bomb Defused");
              currentLength = 0;
              digitalWrite(ledPin3, HIGH);
              delay(2500);
              lcd.setCursor(0,1);
              lcd.print("Reset the Bomb");
              delay(1000000);
            }
      else
        {
          lcd.noCursor();
          lcd.clear();
          lcd.home();
          lcd.print("Wrong Password!");

          if (Hcount > 0)
            {
              Hcount = Hcount - 1;
            }

          if (Mcount > 0)
            {
              Mcount = Mcount - 59;
            }
          if (Scount > 0)
            {
              Scount = Scount - 59;
            }
        delay(1500);
        currentLength = 0;

        }
      }
    }
}

void timer()
{
  Serial.print(Scount);
  Serial.println();

  if (Hcount <= 0)
  {
    if ( Mcount < 0 )
    {
      lcd.noCursor();
      lcd.clear();
      lcd.home();
      lcd.print("The Bomb Has ");
      lcd.setCursor (0,1);
      lcd.print("Exploded!");

      while (Mcount < 0)
      {
        digitalWrite(ledPin, HIGH); // sets the LED on
        tone(NOTE_A2, 90);
        delay(100);
        digitalWrite(ledPin, LOW); // sets the LED off
        tone(NOTE_A2, 90);
        delay(100);
        digitalWrite(ledPin2, HIGH); // sets the LED on
        tone(NOTE_A2, 90);
        delay(100);
        digitalWrite(ledPin2, LOW); // sets the LED off
        tone(NOTE_A2, 90);
        delay(100);
        digitalWrite(ledPin3, HIGH); // sets the LED on
        tone(NOTE_A2, 90);
        delay(100);
        digitalWrite(ledPin3, LOW); // sets the LED off
        tone(NOTE_A2, 90);
        delay(100);
      }
    }
  }

  lcd.setCursor (0,1); // sets cursor to 2nd line
  lcd.print ("Timer:");

  if (Hcount >= 10)
    {
      lcd.setCursor (7,1);
      lcd.print (Hcount);
    }
  if (Hcount < 10)
    {
      lcd.setCursor (7,1);
      lcd.write ("0");
      lcd.setCursor (8,1);
      lcd.print (Hcount);
    }

  lcd.print (":");

  if (Mcount >= 10)
    {
      lcd.setCursor (10,1);
      lcd.print (Mcount);
    }
  if (Mcount < 10)
    {
      lcd.setCursor (10,1);
      lcd.write ("0");
      lcd.setCursor (11,1);
      lcd.print (Mcount);
    }

  lcd.print (":");

  if (Scount >= 10)
    {
      lcd.setCursor (13,1);
      lcd.print (Scount);
    }
  if (Scount < 10)
    {
      lcd.setCursor (13,1);
      lcd.write ("0");
      lcd.setCursor (14,1);
      lcd.print (Scount);
    }

  if (Hcount <0)
    {
      Hcount = 0;
    }

  if (Mcount <0)
    {
      Hcount --;
      Mcount = 59;
    }

  if (Scount <1) // if 60 do this operation
    {
      Mcount --; // add 1 to Mcount
      Scount = 59; // reset Scount
    }

  if (Scount > 0) // do this oper. 59 times
    {
      unsigned long currentMillis = millis();

      if(currentMillis - secMillis > interval)
        {
          tone(NOTE_G5, 200);
          secMillis = currentMillis;
          Scount --; // add 1 to Scount
          digitalWrite(ledPin2, HIGH); // sets the LED on
          delay(10); // waits for a second
          digitalWrite(ledPin2, LOW); // sets the LED off
          delay(10); // waits for a second
          //lcd.clear();
        }
    }
}