GIF player for M5StickC

main.ino

#include <M5StickC.h>
#include <SPIFFS.h>
#define BUTTON G37

bool loaded = false;
uint16_t buffer[12800];
uint8_t i = 7;
File dir;
File frame;
uint8_t current_gif = 0;
String gifs[] = {
  "/meteoright"
};
String fileNames[50] = {""};
uint8_t frameCount = 0;
uint8_t framePos = 0;

void readFiles() {
  uint8_t i = 0;
  dir = SPIFFS.open(gifs[current_gif], "r+");
  frame = dir.openNextFile();
  while(frame) {
    fileNames[i] = frame.name();
    frame.close();
    frame = dir.openNextFile();
    i++;
  }
  frameCount = i;
  dir.close();

}

void setup() {
  // Serial.begin(115200);
  SPIFFS.begin();
  // if(!SPIFFS.begin()){ 
  //   Serial.println("An Error has occurred while mounting SPIFFS");  
  // }
  // Serial.println(SPIFFS.totalBytes());
  // SPIFFS.begin();
  M5.begin();
  M5.Lcd.setRotation(3);
  // M5.Lcd.fillScreen(WHITE);
}
void loop() {
  if(!digitalRead(BUTTON) && loaded) {
    // dir.close();
    current_gif = (current_gif + 1) % 3;
    loaded = false;
    return; 
  }
  if (!loaded) {
    readFiles();
// dir = SPIFFS.open(gifs[current_gif], "r+");
//     frame = dir.openNextFile();
    // File dir = SPIFFS.open("/", "r+");
    // File frame = dir.openNextFile();
    loaded = true;
  }
  // Serial.println(dir.name());
  // Serial.println(frame.name());
  frame = SPIFFS.open(fileNames[framePos]);
  frame.readBytes((char *) &buffer, 25600);
  M5.Lcd.drawBitmap(0, 0, 160, 80, buffer);
  frame.close();
  framePos = (framePos + 1)  % frameCount;
  if(framePos != 0) {
    delay(30);
  }
  

}