/*
************************************************************************************************************
    Title:            Project 5 | led blinking
    Author:           TecnoTronics 
    Date:             March 20, 2023
    Description:      Make a simple Blinking LED ON and OFF
    Hardware:         - Arduino Uno
                      - LED
                      - 220 ohm Resistor
                      - Red LED
                      - Yello LLED
                      - Push Button
                      - Breadboard
                      - Jumper wires
************************************************************************************************************
*/
#define BTN_PIN 2
#define LED_PIN 12

int COUNTER = 0;
const int LEDs_PINs[8] = {3, 4, 5, 6, 7, 8, 9, 10};
const int customMode[8][8] {
  {1, 0, 0, 0, 0, 0, 0, 1},
  {1, 1, 0, 0, 0, 0, 1, 1},
  {1, 1, 1, 0, 0, 1, 1, 1},
  {1, 1, 1, 1, 1, 1, 1, 1},
  {1, 1, 1, 0, 0, 1, 1, 1},
  {1, 1, 0, 0, 0, 0, 1, 1},
  {1, 0, 0, 0, 0, 0, 0, 1},
  {0, 0, 0, 0, 0, 0, 0, 0},
};

void setup() {
  for (int i = 0; i <= 7; i++) {
    pinMode(LEDs_PINs[i], OUTPUT);
  }
  pinMode(BTN_PIN, INPUT_PULLUP);
  pinMode(LED_PIN, OUTPUT); 
}

void loop() {
  int BTN_STAT = digitalRead(BTN_PIN);
  if (BTN_STAT == 0) {
    COUNTER++;
    if (COUNTER > 5) {
      COUNTER = 0;
    }
    digitalWrite(LED_PIN, HIGH);
    delay(3000);
    digitalWrite(LED_PIN, LOW); 
  }  

  switch (COUNTER) {
    case 0:
      RIGHT_TO_LEFT();
      break;
    case 1:
      LEFT_TO_RIGTHT();
      break;
    case 2:
      GO_AND_BACK();
      break;
    case 3:
      GO_AND_BACK_HIGH_AND_LOW();
      break;
    case 4:
      LED_BY_LED();
      break;
    case 5:
      CUSTOM_MODE();
      break;
    default:
      break;
  }
}

void RESET_PINs() {
  for (int i = 0; i <= 7; i++) {
    digitalWrite(LEDs_PINs[i], LOW);
  }
}

void RIGHT_TO_LEFT() {
  RESET_PINs();
  for (int i = 0; i <= 7; i++) {
    digitalWrite(LEDs_PINs[i], HIGH);
    delay(250);
  }
}

void LEFT_TO_RIGTHT() {
  RESET_PINs();
  for (int j = 7; j >= 0; j--) {
    digitalWrite(LEDs_PINs[j], HIGH);
    delay(250);
  }
}

void GO_AND_BACK() {
  RESET_PINs();
  for (int i = 0; i <= 7; i++) {
    digitalWrite(LEDs_PINs[i], HIGH);
    delay(250);
  }
  for (int j = 7; j >= 0; j--) {
    digitalWrite(LEDs_PINs[j], LOW);
    delay(250);
  }
}

void GO_AND_BACK_HIGH_AND_LOW() {
  RESET_PINs();
  for (int i = 0; i <= 7; i++) {
    digitalWrite(LEDs_PINs[i], HIGH);
    delay(250);
  }
  for (int i = 0; i <= 7; i++) {
    digitalWrite(LEDs_PINs[i], LOW);
    delay(250);
  }

  for (int j = 7; j >= 0; j--) {
    digitalWrite(LEDs_PINs[j], HIGH);
    delay(250);
  }
  for (int j = 7; j >= 0; j--) {
    digitalWrite(LEDs_PINs[j], LOW);
    delay(250);
  }
}

void LED_BY_LED() {
  RESET_PINs();
  for (int i = 0; i <= 7; i++) {
    for (int j = 0; j <= 7; j++) {
      if (i == j) {
        digitalWrite(LEDs_PINs[j], HIGH);
      }
      else {
        digitalWrite(LEDs_PINs[j], LOW);
      }
    }
    delay(250);
  }
}

void CUSTOM_MODE() {
  RESET_PINs();
  for (int i = 0; i <= 7; i++) {
    for (int j = 0; j <= 7; j++) {
      digitalWrite(LEDs_PINs[j], customMode[i][j]);
    }
    delay(250);
  }
}