#include <LiquidCrystal.h>

const int buttonPin = 8;

LiquidCrystal lcdOne(22, 23, 4, 5, 6, 7);
LiquidCrystal lcdTwo(24, 25, 10, 11, 12, 13);
LiquidCrystal lcdThree(14, 15, 16, 17, 18, 19);

bool lcdOneCorrect = false;
bool lcdTwoCorrect = false;
bool lcdThreeCorrect = false;

bool allCorrect = false;


int buttonState = LOW;
int lastButtonState = LOW;

unsigned long lastTapTime = 0;

int tapCount = 0;
bool flag = true;

int targetSequence[] = {4,1,0};

int currentPosition = 0;

int randomNumOne, randomNumTwo, randomNumThree;

double moneyCount = 50;



void setup() {
  Serial.begin(9600);
  Serial.print("£");
  Serial.println(moneyCount);

  randomSeed(analogRead(A0));

  pinMode(buttonPin, INPUT);
  
  lcdOne.begin(16, 2);
  lcdTwo.begin(16, 2);
  lcdThree.begin(16, 2);
}

void loop() {
  buttonState = digitalRead(buttonPin);

  if(allCorrect == false){
    if(buttonState == HIGH && flag == true && tapCount != 7){
      singleClick();
      delay(50);
      flag = false;
      checkSequence(randomNumOne, randomNumTwo, randomNumThree);
    }
  if(buttonState == LOW){
    flag = true;
    delay(50);
    }

  if (buttonState == LOW && lastButtonState == HIGH) {

        // Check if taps are within 0.85s of each other
      if (millis() - lastTapTime < 850) {
        tapCount++;
      } else {
        tapCount = 1; // Reset if too slow
      }
      lastTapTime = millis(); // Update last tap time
    }

    if (tapCount == 7 && millis() - lastTapTime >= 850) {
      showSeven();
      tapCount = 0; 
    }
    
  lastButtonState = buttonState;

  }
  else{
  return;
  }
}

//Diamond
void showSeven() {
  if (currentPosition == 0){
    lcdOne.clear();
    int displayNumberOne = 7;
    lcdOne.print(displayNumberOne);
    if(displayNumberOne == targetSequence[0]){
      lcdOneCorrect = true;
      currentPosition = currentPosition + 1;
    }
    return;
  }
  if (currentPosition == 0){
    lcdTwo.clear();
    int displayNumberTwo = 7;
    lcdTwo.print(displayNumberTwo);
    if(displayNumberTwo == targetSequence[1]){
      lcdTwoCorrect = true;
      currentPosition = currentPosition + 1;
    }
    return;
  }
  if (currentPosition == 0){
    lcdThree.clear();
    int displayNumberThree = 7;
    lcdThree.print(displayNumberThree);
    if(displayNumberThree == targetSequence[2]){
      lcdThreeCorrect = true;
      currentPosition = currentPosition + 1;
    }
    return;
  }
}

void singleClick(){
  moneyCount = moneyCount - 1;
  Serial.print("£");  // Try direct symbol (works in some IDEs)
  Serial.println(moneyCount);

  randomNumOne = random(0, 5);
  randomNumTwo = random(0, 5);  // Generates a number between 0-999
  randomNumThree = random(0, 5);  // Generates a number between 0-999

  if(lcdOneCorrect == false){
    lcdOne.clear();
    lcdOne.setCursor(0, 1);  // Move to 2nd line
    lcdOne.print(randomNumOne);
  }
  
  if(lcdTwoCorrect == false){
  lcdTwo.clear();
  lcdTwo.setCursor(0, 1);
  lcdTwo.print(randomNumTwo);
  }

  if(lcdThreeCorrect == false){
  lcdThree.clear();
  lcdThree.setCursor(0, 1);
  lcdThree.print(randomNumThree);
  }
}

void checkSequence(int one, int two, int three){
  if (one == targetSequence[0] && two == targetSequence[1] && three == targetSequence[2]){
    allCorrect = true;
    Serial.println("You Win Collect £60");
    moneyCount = moneyCount + 60;
    Serial.print("£");  // Try direct symbol (works in some IDEs)
    Serial.println(moneyCount);
  }
}