#include <LiquidCrystal.h> 

LiquidCrystal lcd1(19, 21, 22, 23, 13, 12); 

LiquidCrystal lcd2(19, 14, 22, 23, 13, 12); 

int buttonStart = 15, buttonStop = 2, buttonRed = 4, buttonGreen = 5, buttonBlue = 18;
bool running = false;
bool stopped = true;

int redIdentifier = 0, blueIdentifier = 0, greenIdentifier = 0;
int redval = 0, greenval = 0, blueval = 0;
int limit = 0;

void setup() {
  lcd1.begin(16, 2);
  lcd2.begin(16, 2);

  pinMode(buttonStart, INPUT_PULLUP);
  pinMode(buttonStop, INPUT_PULLUP);
  pinMode(buttonRed, INPUT_PULLUP);
  pinMode(buttonGreen, INPUT_PULLUP);
  pinMode(buttonBlue, INPUT_PULLUP);

  attachInterrupt(digitalPinToInterrupt(buttonStop), stop, FALLING);
  attachInterrupt(digitalPinToInterrupt(buttonStart), start, FALLING);
}

void start() {
  lcd2.clear();
  defaultvalues();
  lcd1.setCursor(4, 0);
  lcd1.print("Operation   "); 
  lcd1.setCursor(5, 2);
  lcd1.print("Started     ");
  running = true;
  stopped = false;
}

void defaultvalues(){
  redval = 0, greenval = 0, blueval = 0;
  redIdentifier = 0, blueIdentifier = 0, greenIdentifier = 0;
  limit = 0;
}

void stop() {
  defaultvalues();
  lcd2.clear();
  lcd1.setCursor(4, 0);
  lcd1.print("Operation   ");
  lcd1.setCursor(5, 2);
  lcd1.print("Stopped     ");
  stopped = true;
  running = false;
}
void loop() { 
  if (digitalRead(buttonRed) == LOW){
    redval++;
    delay(200);
  } else if (digitalRead(buttonGreen) == LOW){
    greenval++;
    delay(200);
  } else if (digitalRead(buttonBlue) == LOW){
    blueval++;
    delay(200);
  }
  
  
  
  if (redval == 1 && running == true && redIdentifier == 0){
    lcd2.clear();
    lcd2.setCursor(5, 0);
    lcd2.print("Red_1   ");
    lcd2.setCursor(5, 2);
    lcd2.print("Moves     ");
    redIdentifier = 1;
    limit++;
    redval++;
    delay(200);
  }
  if (redval == 3 && running == true && redIdentifier == 1){
    lcd2.clear();
    lcd2.setCursor(5, 0);
    lcd2.print("Red_2   ");
    lcd2.setCursor(5, 2);
    lcd2.print("Moves     ");
    redIdentifier = 2;
    limit++;
    redval++;
    delay(200);
  }
  if (redval >= 5 && running == true && redIdentifier == 2){
    lcd2.clear();
    lcd2.setCursor(3, 0);
    lcd2.print("Please Pick   ");
    lcd2.setCursor(2, 2);
    lcd2.print("Another Color     ");
    redIdentifier = 3;
    delay(200);
  }


  if (greenval == 1 && running == true && greenIdentifier == 0){
    lcd2.clear();
    lcd2.setCursor(4, 0);
    lcd2.print("Green_1   ");
    lcd2.setCursor(5, 2);
    lcd2.print("Moves     ");
    greenIdentifier = 1;
    limit++;
    greenval++;
    delay(200);
  }
  if (greenval == 3 && running == true && greenIdentifier == 1){
    lcd2.clear();
    lcd2.setCursor(4, 0);
    lcd2.print("Green_2   ");
    lcd2.setCursor(5, 2);
    lcd2.print("Moves     ");
    greenIdentifier = 2;
    limit++;
    greenval++;
    delay(200);
  }
  if (greenval >= 5 && running == true && greenIdentifier == 2){
    lcd2.clear();
    lcd2.setCursor(3, 0);
    lcd2.print("Please Pick   ");
    lcd2.setCursor(2, 2);
    lcd2.print("Another Color     ");
    greenIdentifier = 3;
    delay(200);
  }

  if (blueval == 1 && running == true && blueIdentifier == 0){
    lcd2.clear();
    lcd2.setCursor(4, 0);
    lcd2.print("Blue_1   ");
    lcd2.setCursor(5, 2);
    lcd2.print("Moves     ");
    blueIdentifier = 1;
    limit++;
    blueval++;
    delay(200);
  }
  if (blueval == 3 && running == true && blueIdentifier == 1){
    lcd2.clear();
    lcd2.setCursor(4, 0);
    lcd2.print("Blue_2   ");
    lcd2.setCursor(5, 2);
    lcd2.print("Moves     ");
    blueIdentifier = 2;
    limit++;
    blueval++;
    delay(200);
  }
  if (blueval >= 5 && running == true && blueIdentifier == 2){
    lcd2.clear();
    lcd2.setCursor(3, 0);
    lcd2.print("Please Pick   ");
    lcd2.setCursor(2, 2);
    lcd2.print("Another Color     ");
    blueIdentifier = 3;
    delay(200);
  }

  if (limit >= 5 && running == true){
    delay(1000);
    lcd2.clear();
    lcd2.setCursor(5, 0);
    lcd2.print("LIMIT   ");
    lcd2.setCursor(4, 2);
    lcd2.print("REACHED     ");
    running = false;
    stopped = true;
    defaultvalues();
  }
}