#include <IRremote.h>
#include <LedControl.h>  // Include the library for MAX7219

int numDotsHorizontal = 0;
int numDotsVertical = 0;

#define IR_RECEIVE_PIN 5

#define IR_BUTTON_RIGHT_ARROW 144
#define IR_BUTTON_LEFT_ARROW 224
#define IR_BUTTON_UP_ARROW 145
#define IR_BUTTON_BOTTOM_ARROW 225

LedControl lc = LedControl(12, 11, 10, 1);  // Initialize the MAX7219 with appropriate pins

const int numRows = 8;  // Number of rows in the LED matrix

void setup() {
  // Initialize MAX7219
  lc.shutdown(0, false);
  lc.setIntensity(0, 8);
  lc.clearDisplay(0);

  Serial.begin(9600);
  // Initialize the IR receiver
  IrReceiver.begin(IR_RECEIVE_PIN);

  // Rest of your setup code...
}

void loop() {
  if (IrReceiver.decode()) {
    IrReceiver.resume();
    int command = IrReceiver.decodedIRData.command;
    processIRCommand(command);
  }
}

void processIRCommand(int command) {
  // Handle right arrow button
  if (command == IR_BUTTON_RIGHT_ARROW) {
    numDotsHorizontal++;
    drawDots(numDotsHorizontal, true);  // true for horizontal
    Serial.println(numDotsHorizontal);
  }
  
  // Handle left arrow button
  if (command == IR_BUTTON_LEFT_ARROW) {
    numDotsHorizontal--;
    if (numDotsHorizontal < 0)
      numDotsHorizontal = 0;
    drawDots(numDotsHorizontal, true);  // true for horizontal
  }

  // Handle up arrow button
  if (command == IR_BUTTON_UP_ARROW) {
    numDotsVertical++;
    drawDots(numDotsVertical, false);  // false for vertical
  }
  
  // Handle bottom arrow button
  if (command == IR_BUTTON_BOTTOM_ARROW) {
    numDotsVertical--;
    if (numDotsVertical < 0)
      numDotsVertical = 0;
    drawDots(numDotsVertical, false);  // false for vertical
  }
}

void drawDots(int num, bool isHorizontal) {
  lc.clearDisplay(0);
  
  // Draw dots based on the desired pattern
  for (int i = 0; i < num; i++) {
    if (isHorizontal) {
      int middleRow = numRows / 2;
      lc.setLed(0, middleRow, middleRow - i, true);
    } else {
      lc.setLed(0, i, i, true);
    }
  }
}