/*  
    A3 (CS)   -> LCD CS
    A2 (CD/RS)-> LCD DC
    A1 (WR)   -> LCD WR
    A0 (RD)   -> LCD RD
    RESET -> ARDUINO RESET (vagy 5V, LOW->RESET, HIGH->NINCS RESET)    
*/
#include <MCUFRIEND_kbv.h>
#include <SPI.h>
#include <ILI9488.h>

MCUFRIEND_kbv tft;
uint16_t ID;

void setup() {
  ID = tft.readID();
  if (ID == 0xD3D3) {
    ID = 0x9488; // ugyanaz mint a másik
  }
  // init
  tft.begin(ID);

  // 1=90 fokkal forgi
  tft.setRotation(1);

  // Clear screen
  tft.fillScreen(0x000000);
}

void loop() {
  // test pattern
  tft.fillScreen(0xFFFFFF);

  // Draw vertical red lines every 20 pixels
  for (uint16_t x = 0; x < tft.width(); x += 20) {
    tft.drawFastVLine(x, 0, tft.height(), 0xFF0000);
  }

  // 20 pixelenként zöld csík
  for (uint16_t y = 0; y < tft.height(); y += 20) {
    tft.drawFastHLine(0, y, tft.width(), 0x00FF00);
  }

  // Draw centered text
  tft.setTextSize(4);
  tft.setTextColor(0X0000FF);
  uint16_t x = (tft.width() - (6 * 16)) / 2;  // Approximate centering for 6 chars
  uint16_t y = (tft.height() - (8 * 4)) / 2;
  tft.setCursor(x, y);
  tft.print("Helló világ! adjatok sört pls :3");

  delay(3000);

    /*
    Színmegfordítosmanőver
    tft.invertDisplay(true);
    delay(1000);
    tft.invertDisplay(false);
    delay(1000);
    */  
}