#define buttonPin 8
bool prevState;
unsigned long pressTime;
unsigned int delayTime = 20;
bool buttonFiltered = false;
int counter = 1;
unsigned long timer;
int i = 0;
int animSpeed = 100;

void animator(byte arrOfFrames[], int maxFrames, int speed) {
  if (millis() >= timer + speed) {
      timer = millis();
      // Serial.println(maxFrames);
      if (i > maxFrames-1){
        // Serial.println(i);
        i = 0;
      }
      if (i <= maxFrames-1){
        // Serial.println(arrOfFrames[i]);
        PORTD = arrOfFrames[i] ^ 255;
        i++;
      }
      }
}

void animations(int selectedAnim) {
  if (selectedAnim == 1) {
    byte frames[] = {0b00010010, 0b00100100, 0b10000000, 0b01001000};
    animator(frames, sizeof(frames)/ sizeof(frames[0]), animSpeed);
  } else if (selectedAnim == 2) {
    byte frames[] = {0b00000010, 0b00000100, 0b00001000, 0b00010000, 0b00100000, 0b01000000};
    animator(frames, sizeof(frames)/ sizeof(frames[0]), animSpeed);
  } else if (selectedAnim == 3) {
    byte frames[] = {0b00000010,0b01000110,0b10000000,0b00101000,0b00010000,0b01100000,0b10010010,0b00001100};
    animator(frames, sizeof(frames)/ sizeof(frames[0]), animSpeed+200);
  } else if (selectedAnim == 4) {
    byte frames[] = {0b0000010,0b00000110,0b00001110,0b00011110,0b00111110,0b01111110,0b11111110,0b01111110,0b00111110,0b00011110,0b00001110,0b00000110,0b00000010, 0b0000000};
    animator(frames, sizeof(frames)/ sizeof(frames[0]), animSpeed);
  } else if (selectedAnim == 5) {
    byte frames[] = {0b10111000,0b11000111};
    animator(frames, sizeof(frames)/ sizeof(frames[0]), 1000);
  } else if (selectedAnim == 6) {
    byte frames[] = {0b10000010, 0b10000100, 0b10001000, 0b10010000, 0b10100000, 0b10000000, 0b10001010, 0b00011010, 0b00110010, 0b01100010, 0b01000010, 0b00000010};
    animator(frames, sizeof(frames)/ sizeof(frames[0]), 1000);
  }
}

void setup() {
  for (int i = 1; i <= 7; i++) {
    pinMode(i, OUTPUT);
    digitalWrite(i, 0);
  }
  pinMode(buttonPin, INPUT_PULLUP);
  prevState = !digitalRead(buttonPin);
  timer = millis();
  // Serial.begin(9600);
}
void loop() {
  bool buttonReading = !digitalRead(buttonPin);
  if (buttonReading != prevState) {
    pressTime = millis();
  }
  if (millis() - pressTime >= delayTime) {
    if (buttonFiltered != buttonReading) {
      buttonFiltered = buttonReading;
      if (buttonFiltered) {
        PORTD = 255;
        i=0;
        if (counter < 6) {
          counter ++;
        } else {
          counter = 1;
        }
      }
    }
  }
  animations(counter);
  prevState = buttonReading;
}