# define BUTTON_PIN 2

int a= 13;
int b= 12;
int c= 11;
int d= 10;
int e= 9;
int f= 8;
int g= 7;
// int dp= 6;
int wait = 1000;
bool flag=false;
bool button_status;


int ledPins[7] = {13, 12, 11, 10, 9, 8, 7};

bool numMatrix[10][7] = {
  {1, 1, 1, 1, 1, 1, 0}, //0
  {0, 1, 1, 0, 0, 0, 0}, //1
  {1, 1, 0, 1, 1, 0, 1}, //2
  {1, 1, 1, 1, 0, 0, 1}, //3
  {0, 1, 1, 0, 0, 1, 1}, //4
  {1, 0, 1, 1, 0, 1, 1}, //5
  {1, 0, 1, 1, 1, 1, 1}, //6
  {1, 1, 1, 0, 0, 0, 0}, //7
  {1, 1, 1, 1, 1, 1, 1}, //8
  {1, 1, 1, 1, 0, 1, 1}, //9

};

void setup() {
  pinMode(a, OUTPUT);
  pinMode(b, OUTPUT);
  pinMode(c, OUTPUT);
  pinMode(d, OUTPUT);
  pinMode(e, OUTPUT);
  pinMode(f, OUTPUT);
  pinMode(g, OUTPUT);
  // pinMode(dp, OUTPUT);
  pinMode(BUTTON_PIN,INPUT);
  reset();

}

void reset() {
  flag=false;

  for (int i=0; i<7; i++) {
      digitalWrite(ledPins[i], 0);
  }
}


int click() {
  button_status=digitalRead(BUTTON_PIN);
  if (!flag && button_status) {
    delay(10/16);
    button_status = digitalRead(BUTTON_PIN);
    if (button_status==true)
    {
    flag=!flag;
    return 1;
    }
}
/*
if (flag && !button_status)
{
delay(10/16);
button_status = digitalRead(BUTTON_PIN);
    if (!button_status)
    {
    flag=!flag;
    return 2;
    }
}
*/

return 0;
}


void loop() {
 if (click()==0) {
    count_down();

 }
 delay(100/16);
 reset();


}

void count_down(){
  for (int num=9; num>=0; num--) {
    //digitalWrite(6, HIGH);
    //delay(500);
    //digitalWrite(6, LOW);
    for (int i=0; i<7; i++) {
      digitalWrite(ledPins[i], numMatrix[num][i]);
    }
      delay(wait);
  }

}