Button Mashing Counter

// Initialize pins and data
byte seven_segment_digits[10][7] = { { 0,0,0,0,0,0,1 }, // display '0'
                                     { 1,0,0,1,1,1,1 }, // display '1'
                                     { 0,0,1,0,0,1,0 }, // display '2'
                                     { 0,0,0,0,1,1,0 }, // display '3'
                                     { 1,0,0,1,1,0,0 }, // display '4'
                                     { 0,1,0,0,1,0,0 }, // display '5'
                                     { 0,1,0,0,0,0,0 }, // display '6'
                                     { 0,0,0,1,1,1,1 }, // display '7'
                                     { 0,0,0,0,0,0,0 }, // display '8'
                                     { 0,0,0,1,1,0,0 }  // display '9'
                                   };

const int buttonPin = 19;
const int tilt = 17;
int breadboardButtonState = 1;
int tiltstate = 1;
int start_num = 0;


// Setup pins for 7 segment display and set to display '0'
void setup() {

  pinMode(buttonPin, INPUT_PULLUP);
  pinMode(tilt, INPUT_PULLUP);

  pinMode(3, OUTPUT); // set segment A as output
  pinMode(4, OUTPUT); // set segment B as output
  pinMode(5, OUTPUT); // set segment C as output
  pinMode(6, OUTPUT); // set segment D as output
  pinMode(7, OUTPUT); // set segment E as output
  pinMode(8, OUTPUT); // set segment F as output
  pinMode(9, OUTPUT); // set segment G as output
  pinMode(10, OUTPUT); // set dot as output
  for(int i = 3; i < 10; i++) { 
    if(i==9){
      digitalWrite(i,HIGH);
    }
    else{
    digitalWrite(i, LOW);
    }
  }
  digitalWrite(10, HIGH);  // start with the dot off
}


 
void loop() {

  
  tiltstate = digitalRead(tilt);

  //manage whether button can be pressed to add or not
  if(tiltstate==0){
    breadboardButtonState = 1;
  }
  else{
    breadboardButtonState = digitalRead(buttonPin);
   }
  
  //display next number
  if(breadboardButtonState == 0){
    start_num = start_num + 1;
    start_num = start_num % 10;
    int pin =3;
    for(int i = 0; i<7 ;i++){
      
      digitalWrite(pin, seven_segment_digits[start_num-1][i]);
      pin++;
      }
    }
  
 
delay(130); //Best delay for button mashing
}