#include <Keypad.h>
#define LED_gb A4
#define LED_r A5
#define BEEPER 13
#define DEFUSE_NUZKY 12
#define DEFUSE 11


const uint8_t ROWS = 4;
const uint8_t COLS = 3;
char keys[ROWS][COLS] = {
  { '1', '2', '3'},
  { '4', '5', '6'},
  { '7', '8', '9'},
  { '*', '0', '#'}
};

uint8_t colPins[COLS] = { 5, 4, 3}; // Pins connected to C1, C2, C3, C4
uint8_t rowPins[ROWS] = { 9, 8, 7, 6 }; // Pins connected to R1, R2, R3, R4

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

String lock="7355608";
String kod="";
bool plant=false, explosion=false;
float start, blik;
int sekundy=0, power, beep, n=1,defuse=0;
void setup() {
  pinMode(A5, OUTPUT);
  digitalWrite(A5, LOW);
  digitalWrite(DEFUSE_NUZKY, HIGH);
  digitalWrite(DEFUSE, HIGH);
  Serial.begin(9600);

}

void loop() {
  char key = keypad.getKey();
  if(plant==0)
  {
    if (key != NO_KEY) 
    {
      Serial.print(key);
      kod+=key;
      if(kod.length()>6)
      {
        if(kod!=lock)
        {
          Serial.println();
          Serial.println("WRONG CODE");
          kod="";
        }
        else
        {
          plant=1;
          start=millis();
          blik=millis();
          Serial.println();
          Serial.println("PLANTED");
        }
      }
    }
  }
  else
  {
    if(explosion==0)
    {
      if((millis()-blik)>beep)
      {
        blik=millis();

        digitalWrite(LED_r, HIGH);
        if(sekundy>28)
          digitalWrite(LED_gb, HIGH);
        tone(BEEPER, 2093);
        delay(10);
        noTone(BEEPER);
        for(float i=255; i>=power;i--)
        {
          analogWrite(LED_r, i);
          if(sekundy>28)
            analogWrite(LED_gb, i);
          delay(3);
        }
        digitalWrite(LED_r, LOW);
        digitalWrite(LED_gb, LOW);
      }
      if((millis()-start)>999)
      {
        sekundy++;
        if(digitalRead(DEFUSE)==LOW || digitalRead(DEFUSE_NUZKY)==LOW)
        {
          Serial.println("defusing");
          if(digitalRead(DEFUSE_NUZKY)==LOW)
            defuse+=2;
          else
            defuse++;
          if(defuse>10)
          {
            plant=0;
            Serial.println("THE BOMB HAS BEEN DEFUSED");
            defuse=1;
            sekundy=0;
            kod="";
          }
        }
        start=millis();
      }
      beep=map(sekundy, 0, 34, 1000, 100);
      power=map(beep, 1000, 100, 0, 250);
      if(sekundy==34)
      {
        
        explosion=1;
        Serial.println("BUUUM");
        tone(BEEPER, 10);
        delay(5000);
        noTone(BEEPER);
      }
      
    }
  }
}