#include <Arduino.h>
#include <FastLED.h>

#define DATA_PIN 22

const int width = 32; // links nach rechts = 0 : 31
const int height = 8; // oben nach unten = 0 : 7
const int NUM_LEDS = (width*height);
const uint8_t INT6x4[10][6] = {
    {6,9,9,9,9,6}, // 0
    {6,7,6,6,6,6}, // 1
    {}, // 2
    {}, // 3
    {}, // 4
    {}, // 5
    {}, // 6
    {}, // 7
    {}, // 8
    {}  // 9
  };

CRGB leds[NUM_LEDS];
int rundum = 0;

struct cursor {
  int x = 0;
  int y = 0;
} cursor;

bool set_cursor(int x,int y){
  if (x > 0 && y > 0){
    cursor.x = x;
    cursor.y = y;
    return true;
  } 
  else return false;
}

int xValue (int h=0, int w=0){
  return w+cursor.x+cursor.y*width+h*width;
}

void print_num(int c, int x=0, int y=0){
  for (int h = 0;h<6;h++){
    for (int w=0;w<4;w++){
      Serial.println(w+x<width?w+x:w+x-width);
      if (INT6x4[c][h]>>w&1)leds[(w+x)+y*width+h*width]=CRGB::White;
      else leds[(w+x)+y*width+h*width]=CRGB::Black;
      // if (INT6x4[c][h]>>w&1)leds[xValue(h,w)]=CRGB::White;
      // else leds[xValue(h,w)]=CRGB::Black;
    }
  }
}

void setup() { 
    Serial.begin(9600);
    Serial.println("Test:");
    FastLED.addLeds<NEOPIXEL, DATA_PIN>(leds, NUM_LEDS);
  }

void loop() {
    print_num(1,4,1);
    FastLED.show();
    delay(500);
    print_num(0,4,1);
    FastLED.show();
    delay(500);
    print_num(1,30,1);
    FastLED.show();
    delay(500);
    print_num(0,30,1);
    FastLED.show();
    delay(500);
    // if (++rundum > width) rundum = 0;
    FastLED.clear();    
}