let selectedImageIndex; // Index of the image to memorize

let nextImageIndex; // Index for the next image to memorize

let gridImages = [];

let gridSize = 2; // Grid size

let currentPage = -1; // Page tracker

let startImage;

let timer = 5;

let timerActive = false;

let ArrowLeft = 0, ArrowRight = 0, ArrowUp = 0, ArrowDown = 0;

let serial; // Serial port object

​

function preload() {

  startImage = loadImage("Start.jpeg");

  // Load images

  for (let i = 1; i <= 6; i++) {

    images.push(loadImage(`pic${i}.png`));

  }

}

​

function setup() {

  createCanvas(600, 600);

  noLoop();

  selectedImageIndex = int(random(images.length));

  nextImageIndex = int(random(images.length));

  setupGrid(); // Setup the grid with unique images, including the memorized one

}

​

function setupGrid() {

  let availableImages = images.filter((img, idx) => idx !== selectedImageIndex); // Exclude selected image from pool

  availableImages = shuffle(availableImages); // Shuffle available images to randomize selection

​

  gridImages = [];

  for (let i = 0; i < gridSize * gridSize; i++) {

    if (i === 0) {

      gridImages.push(images[selectedImageIndex]); // Ensure the selected image is in the grid

    } else {

      gridImages.push(availableImages[i - 1]);

    }

  }

  gridImages = shuffle(gridImages); // Shuffle the grid to randomize positions

}

​

function draw() {

  background(220);

  if (currentPage === -1) {

    drawStartPage();

  } else if (currentPage === 0) {

    drawFirstPage();

  } else {

    drawGamePage();

  }

}

​

function drawStartPage() {

  background(startImage);

  fill(0);

  rect(width / 2 - 30, height / 2 - 20, 60, 40);

  fill(255);

  textAlign(CENTER, CENTER);

  text('Start', width / 2, height / 2);

}

​

function drawFirstPage() {

  image(images[selectedImageIndex], width / 2 - 60, height / 2 - 60, 120, 120);

  if (!timerActive) {

    timerActive = true;

    startTimer();

  }

}

​

function drawGamePage() {

  let padding = 230;

  for (let i = 0; i < gridSize; i++) {

    for (let j = 0; j < gridSize; j++) {

      let idx = i * gridSize + j;

      image(gridImages[idx], padding + j * (120 + 50), padding + i * (120 + 50), 120, 120);

    }

  }

}

​

function mouseClicked() {

  if (currentPage === -1 && mouseX > width / 2 - 30 && mouseX < width / 2 + 30 && mouseY > height / 2 - 20 && mouseY < height / 2 + 20) {

    currentPage = 0;

    redraw();

  }

}

​

function keyPressed() {

  if (key === " ") {

    // This could be where you handle serial setup if needed

    console.log("Space bar pressed, setup serial or perform action");

  }

​

  if (currentPage === 0) {

    currentPage++; // Advance to game from the first page

    redraw();

  }

}

function keyPressed() {

  if (key == " ") {

    // important to have in order to start the serial connection!!

    setUpSerial();

  }

​

  if (key === "f" || key === "F") {

    let fs = fullscreen();

    fullscreen(!fs);

  }

​

  if (currentPage === 0) {

    currentPage++;

    redraw();

  }

} 

​

function prepareNextLevel() {

  selectedImageIndex = nextImageIndex;

  nextImageIndex = int(random(images.length));

  setupGrid();

  redraw();

}

​

function startTimer() {

  let interval = setInterval(() => {

    timer--;

    if (timer <= 0) {

      clearInterval(interval);

      currentPage++;

      timerActive = false;

      redraw();

    }

  }, 1000);

}

​

​

​

//function keyPressed() {

//if (key == " ") {

// important to have in order to start the serial connection!!

// setUpSerial();

// }

//}

​

// This function will be called by the web-serial library

// with each new *line* of data. The serial library reads

// the data until the newline and then gives it to us through

// this callback function

function readSerial(data) {

  ////////////////////////////////////

  //READ FROM ARDUINO HERE

  ////////////////////////////////////

​

  if (data != null) {

    // make sure there is actually a message

    // split the message

    let fromArduino = split(trim(data), ",");

    // if the right length, then proceed

    if (fromArduino.length == 4) {

      // only store values here

      // do everything with those values in the main draw loop

​

      // We take the string we get from Arduino and explicitly

      // convert it to a number by using int()

      // e.g. "103" becomes 103

      //ArrowLeft = int(fromArduino[0]);

      //ArrowDown = int(fromArduino[1]);

     // ArrowRight = int(fromArduino[2]);

      //ArrowUp = int(fromArduino[3]);

    }

    //console.log ("left button is" + ArrowLeft);

    //console.log ("right button is" + ArrowRight);

    //console.log ("up button is" + ArrowUp);

    console.log ("meow button is" + ArrowDown);

​

    //////////////////////////////////

    //SEND TO ARDUINO HERE (handshake)

    //////////////////////////////////

    let sendToArduino = "\n";

    writeSerial(sendToArduino);

  }

}

​

//Arduino Code

/*

// Week 11.2 Example of bidirectional serial communication

​

// Inputs:

// - A0 - sensor connected as voltage divider (e.g. potentiometer or light sensor)

// - A1 - sensor connected as voltage divider 

//

// Outputs:

// - 2 - LED

// - 5 - LED

​

int leftLedPin = 2;

int rightLedPin = 5;

​

void setup() {

  // Start serial communication so we can send data

  // over the USB connection to our p5js sketch

  Serial.begin(9600);

​

  // We'll use the builtin LED as a status output.

  // We can't use the serial monitor since the serial connection is

  // used to communicate to p5js and only one application on the computer

  // can use a serial port at once.

  pinMode(LED_BUILTIN, OUTPUT);

​

  // Outputs on these pins

  pinMode(leftLedPin, OUTPUT);

  pinMode(rightLedPin, OUTPUT);

​

  // Blink them so we can check the wiring

  digitalWrite(leftLedPin, HIGH);

  digitalWrite(rightLedPin, HIGH);

  delay(200);

  digitalWrite(leftLedPin, LOW);

  digitalWrite(rightLedPin, LOW);

​

​

​

  // start the handshake

  while (Serial.available() <= 0) {

    digitalWrite(LED_BUILTIN, HIGH); // on/blink while waiting for serial data

    Serial.println("0,0"); // send a starting message

    delay(300);            // wait 1/3 second

    digitalWrite(LED_BUILTIN, LOW);

    delay(50);

  }

}

​

void loop() {

  // wait for data from p5 before doing something

  while (Serial.available()) {

    digitalWrite(LED_BUILTIN, HIGH); // led on while receiving data

​

    int left = Serial.parseInt();

    int right = Serial.parseInt();

    if (Serial.read() == '\n') {

      digitalWrite(leftLedPin, left);

      digitalWrite(rightLedPin, right);

      int sensor = analogRead(A0);

      delay(5);

      int sensor2 = analogRead(A1);

      delay(5);

      Serial.print(sensor);

      Serial.print(',');

      Serial.println(sensor2);

    }

  }

  digitalWrite(LED_BUILTIN, LOW);

}

*/

​