#include <MD_MAX72xx.h>

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

#define MAX_DEVICES (baris * kolom)

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

struct LED {
  int8_t x;  // Koordinat X
  int8_t y;  // Koordinat Y
};

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 HURUF_C[] = {
{0,4},{0,5},{0,6},{0,7},{0,8},{0,9},{0,10},
{-1,3},{-1,11},
{-2,2},{-2,12},
{-3,1},{-3,13},
{-4,0},{-4,14},
{-5,0},{-5,14},
{-6,0},{-6,14},
{-7,0},{-7,14},
{-8,0},{-8,14},
{-9,1},{-9,13},
{-10,2},{-10,12},
{-11,3},{-11,11}
};
const uint8_t SIZE_HURUF_C = sizeof(HURUF_C) / sizeof(HURUF_C[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;
    case 'C':
      size = SIZE_HURUF_C;
      return HURUF_C;
    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 tampilkanTeks(MD_MAX72XX &mx, const char *teks) {
  int16_t offsetX = 0;
  bool tampil=true;
  uint8_t lastKar = strlen(teks)-1;
  while (tampil){
    const char *ptr = teks;
    int16_t lastOffsetX = offsetX;
    int16_t currentOffsetX;
    mx.clear();
    while (*ptr) {
      uint8_t size;
      const LED *pola = getHuruf(*ptr, size);
      Serial.println("offsetX, posisiKol, x, y: "); 
      if (pola) {
        Serial.print("ptr: "); Serial.println(*ptr);
        int16_t posisiKol;
        for (uint8_t i = 0; i < size; i++) {
          //int x = maxX - 1 - (pola[i].x + offsetX);
          int16_t x = pola[i].x;
          int16_t y = pola[i].y;
          int16_t posisiKol = lastOffsetX + x;
          Serial.print(offsetX); Serial.print(", "); Serial.print(posisiKol); Serial.print(", "); Serial.print(x); Serial.print(", "); Serial.print(y);
          if (posisiKol >= 0 && posisiKol < maxX) {
            Serial.print(" LED On");
            if (y < 8)
              mx.setPoint(y, posisiKol, true);
            else
              mx.setPoint(y - 8, posisiKol + maxX, true);
            currentOffsetX = posisiKol;
            
          }
          //delay(10);
          Serial.println();
        }
        
      } 
      lastOffsetX = currentOffsetX-2;
      ptr++;
    }
    offsetX++;
    mx.update();
    delay(100);  // Kecepatan scroll
  }
}

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

void loop() {
  tampilkanTeks(mx, "AB");
  delay(50);
}