#include <MD_MAX72xx.h>

const int baris = 2;
const int kolom = 5;

#define	MAX_DEVICES	(baris * kolom)

const int maxX = kolom * 8;
const int maxY = 8;

struct LED {
  uint8_t x;  // Koordinat X
  uint8_t y;  // Koordinat Y
};

// Contoh pola huruf A
const LED HURUF_A[] = {
{0,5},{0,6},{0,7},{0,8},{0,9},{0,10},{0,11},{0,12},{0,13},{0,14},
{1,4},{1,10},
{2,3},{2,10},
{3,2},{3,10},
{4,1},{4,10},
{5,0},{5,10},
{6,0},{6,10},
{7,1},{7,10},
{8,2},{8,10},
{9,3},{9,10},
{10,4},{10,10},
{11,5},{11,6},{11,7},{11,8},{11,9},{11,10},{11,11},{11,12},{11,13},{11,14}
};
const uint8_t SIZE_HURUF_A = sizeof(HURUF_A) / sizeof(HURUF_A[0]);

const LED HURUF_B[] = {
{0,0},{0,14},
{1,0},{1,14},
{2,0},{2,1},{2,2},{2,3},{2,4},{2,5},{2,6},{2,7},{2,8},{2,9},{2,10},{2,11},{2,12},{2,13},{2,14},
{3,0},{3,7},{3,14},
{4,0},{4,7},{4,14},
{5,0},{5,7},{5,14},
{6,0},{6,7},{6,14},
{7,0},{7,7},{7,14},
{8,0},{8,7},{8,14},
{9,1},{9,6},{9,8},{9,13},
{10,2},{10,5},{10,9},{10,12},
{11,3},{11,4},{11,10},{11,11}
};
const uint8_t SIZE_HURUF_B = sizeof(HURUF_B) / sizeof(HURUF_B[0]);

const LED *getHuruf(char c, uint8_t &size) {
  switch (c) {
    case 'A':
      size = SIZE_HURUF_A;
      return HURUF_A;
    case 'B':
      size = SIZE_HURUF_B;
      return HURUF_B;
    // Tambahkan huruf lain di sini
    default:
      size = 0;
      return nullptr;
  }
}

#define	CLK_PIN		13
#define	DATA_PIN	11
#define	CS_PIN		10

MD_MAX72XX mx = MD_MAX72XX(MD_MAX72XX::PAROLA_HW, CS_PIN, MAX_DEVICES);

void tampilkanKarakter(MD_MAX72XX &mx, char c, int offsetX) {
  uint8_t size;
  const LED *pola = getHuruf(c, size);

  if (pola) {
    for (uint8_t i = 0; i < size; i++) {
      int x = maxX - 1 - (pola[i].x + offsetX);  // Membalik arah X
      int y = pola[i].y;

      if (y < 8)  // Baris pertama
        mx.setPoint(y, x, true);
      else        // Baris kedua
        mx.setPoint(y-8, x+maxX, true);
      delay(50);
    }
  }
}

void tampilkanTeks(MD_MAX72XX &mx, const char *teks) {
  mx.clear();
  int offsetX = maxX - 16;

  int panjang = strlen(teks);  // Panjang string
  for (int i = panjang - 1; i >= 0; i--) {
    // Baca karakter satu per satu dari belakang
    tampilkanKarakter(mx, teks[i], offsetX);
    offsetX -= 16;  // Geser 16 kolom untuk huruf berikutnya
  }
  
  mx.update();
}

void setup() {
  Serial.begin(9600);
  mx.begin();
  mx.control(MD_MAX72XX::INTENSITY, MAX_INTENSITY / 2);
  mx.clear();
}

void loop() {
  tampilkanTeks(mx, "AB");
  delay(2000);
}