/*
  Arduino | general
  |°ΉӨMΣ°| — 6/18/24 at 8:09 PM
  is there any error? idk
*/

const unsigned long P_DELAY = 5000;
const int NUM_PINS = 4;
const int PATTERN_ROWS = 8;
const int PATTERN_COLS = NUM_PINS;
const int B_PINS[NUM_PINS] = {11, 10, 9, 8};
const bool PATTERNS[PATTERN_ROWS][PATTERN_COLS] = {
  {HIGH, LOW, LOW, LOW},
  {LOW, HIGH, LOW, LOW},
  {LOW, LOW, HIGH, LOW},
  {LOW, LOW, LOW, HIGH},
  {HIGH, LOW, LOW, HIGH},
  {LOW, HIGH, HIGH, LOW},
  {HIGH, LOW, HIGH, LOW},
  {LOW, HIGH, LOW, HIGH}
};

unsigned long prevMillis = 0;
int colCounter = 0;
bool isRunning = false;

void setup() {
  Serial.begin(9600);
  for (int i = 0; i < NUM_PINS; i++) {
    pinMode(B_PINS[i], OUTPUT);
  }
}

void loop() {

  Serial.println("Hello");
  // show each pattern row after P_DELAY
  for (int patternRow = 0; patternRow < PATTERN_ROWS; patternRow++) {
    Serial.print("Row\t");
    Serial.println(patternRow);
    Serial.print("Col\t");
    //for (int patternCol = 0; patternCol < PATTERN_COLS; patternCol++) {
    //digitalWrite(B_PINS[patternCol], PATTERNS[patternRow][patternCol]);
    digitalWrite(B_PINS[colCounter], PATTERNS[patternRow][colCounter]);
    //Serial.print(PATTERNS[patternRow][patternCol] ? "HIGH" : "LOW");
    Serial.print(PATTERNS[patternRow][colCounter] ? "HIGH" : "LOW");
    Serial.print("\t");
    //}
    if (millis() - prevMillis >= P_DELAY) {
      prevMillis = millis();
      colCounter++;
    }
    if (colCounter >= PATTERN_COLS) {
      colCounter = 0;
      Serial.println();
      //delay(1000);
    }
  }
  Serial.println();
}