#include <MD_MAX72xx.h>

//matrix controls
const byte data_pin = 11;
const byte chip_select_pin = 10;
const byte clock_pin = 13;
const byte max_devices = 4;

// creating matrix object
MD_MAX72XX matrix = MD_MAX72XX(MD_MAX72XX::PAROLA_HW, chip_select_pin, max_devices);

// define the joystick controls
const byte hpin = A1;
const byte vpin = A0;

int head_x = 0;
int head_y = 0;

int max_x = 31;
int max_y = 7;

String prev_dir = "";
String dir = "";

void setup()
{
  Serial.begin(9600);
  // delay(20);
  matrix.begin();
  matrix.clear();
  matrix.setPoint(head_y , head_x , true);
            // (right left ,up down, true--> pint visible, false --> no visible)
}

void loop()
{
  checkDirection();
  moveSprite();
  matrix.setPoint(head_y , head_x , true);
            // (right left ,up down, true--> pint visible, false --> no visible)
  //////DONT ADD FIRST, RUN WITHOUT< SHOES IS VERY FAST< THERFORE WE ADD////////////
  delay(200);
  /////////////////////////////////////////////////////////////////////////////////
}

void checkDirection()
{
  if (analogRead(hpin) > 512)
    dir = "Left";
  else if (analogRead(hpin) < 512)
    dir = "Right"; 
  if (analogRead(vpin) > 512)
    dir = "Up";
  else if (analogRead(vpin) < 512)
    dir = "Down";

}

void moveSprite()
{
  if (dir == "Left" )
  {
    head_x += 1;
  }
  else if (dir == "Right" )
  {
    head_x -= 1;
  }
  else if (dir == "Up" )
  {
    head_y -= 1;// has been switched wantedly, only then sprite is moving according tot the joystick
  }
  else if (dir == "Down" )
  {
    head_y += 1;// has been switched wantedly, only then sprite is moving according tot the joystick
  }

}