#include <Arduino.h>
#include <Wire.h>  // Include the Wire library for I2C communication

#define S0_PIN 2    // Define the S0 pin for multiplexer 1
#define S1_PIN 3    // Define the S1 pin for multiplexer 1
#define S2_PIN 4    // Define the S2 pin for multiplexer 1
#define S3_PIN 5    // Define the S3 pin for multiplexer 1
#define SIG_PIN 0   // Define the SIG pin for multiplexer 1 (analog pin)
#define BUTTON_PIN 10  // Define the button pin



#define thresholdValue 128   // Define the SIG pin for multiplexer 1 (analog pin)
bool gameStarted = false;  // Variable to track the game state

void setup() {
  Serial.begin(9600);  // Initialize serial communication
  Wire.begin();        // Initialize I2C communication
  pinMode(S0_PIN, OUTPUT);
  pinMode(S1_PIN, OUTPUT);
  pinMode(S2_PIN, OUTPUT);
  pinMode(S3_PIN, OUTPUT);
}


void selectChannel(int channel) {
  digitalWrite(S0_PIN, channel & 0x01);
  digitalWrite(S1_PIN, (channel >> 1) & 0x01);
  digitalWrite(S2_PIN, (channel >> 2) & 0x01);
  digitalWrite(S3_PIN, (channel >> 3) & 0x01);
}


void loop() {
  if (!gameStarted) {
    // Check if the button is pressed
    if (digitalRead(BUTTON_PIN) == HIGH) {
      // Button is pressed, start the game
      gameStarted = true;
      Serial.println("Game started!");
      // Add any other game initialization logic here
    }
  } else {
  for (int channel = 0; channel < 64; channel++) {
    selectChannel(channel);  // Select the channel
    int sensorValue = analogRead(SIG_PIN); // Read the sensor value

    if( sensorValue < 1000) {
      Serial.print(channel);
      Serial.print("  ");
      Serial.println(sensorValue);
    }
    
    // You can add your logic here to detect chess piece movement and print notation
    // For example, if a piece is detected:
    
    // if (sensorValue > thresholdValue) {
    //   // Print chess notation for the moved piece
    //   Serial.print("Piece moved from ");
    //   Serial.print(getChessSquare(channel)); // Convert channel to chess square notation
    //   Serial.println(" to ");
    //   // Wait for some time to avoid duplicate readings
    //   delay(1000);
    // }
  }
}
}


String getChessSquare(int channel) {
  // Define your chessboard layout here
  // Assuming an 8x8 chessboard with rows labeled from 'a' to 'h' and columns from 1 to 8
  char column = 'a' + (channel % 8); // Convert channel to column (a to h)
  int row = 8 - (channel / 8);        // Convert channel to row (1 to 8)

  // Create the chess square notation
  String square = "";
  square += column;
  square += String(row);

  return square;
}