Fire Display

#include "M5Unified.h"

void setup() {
  M5.begin();

  int textsize = M5.Display.height() / 60;
  if (textsize == 0) {
    textsize = 1;
  }
  M5.Display.setTextSize(textsize);
}

void loop() {
  int x = rand() % M5.Display.width();
  int y = rand() % M5.Display.height();
  int r = (M5.Display.width() >> 4) + 2;
  uint16_t c = rand();
  M5.Display.fillCircle(x, y, r, c);

  draw_function(&M5.Display);
}

void draw_function(LovyanGFX* gfx) {
  int x = rand() % gfx->width();
  int y = rand() % gfx->height();
  int r = (gfx->width() >> 4) + 2;
  uint16_t c = rand();
  gfx->fillRect(x - r, y - r, r * 2, r * 2, c);
}