Arduino Tally Counter

//****************************************************
//*              Arduino Tally Counter               *
//*                learnelectronics                  *
//*         www.youtube.com/learnelectronics         *
//*                                                  *
//* **************************************************

#include <Wire.h>                                     //library for the OLED on I2C
#include <Adafruit_GFX.h>                             //goes with OLED driver
#include <Adafruit_SSD1306.h>                         //OLED driver

#define OLED_RESET 4                                  //required for oled
Adafruit_SSD1306 display(OLED_RESET);                 //setup oled as "display"

int count = 0;                                        //initial/reset state of main variable
int buttonState = LOW;                                //used to debounce the button
long lastDebounceTime = 0;                            //used to debounce the button
long debounceDelay = 500;                             //used to debounce the button




void setup() {

  pinMode(2,INPUT_PULLUP);                            //main switch held high with internal pullup
  pinMode(4,INPUT_PULLUP);                            //counter reset held high blah blah

  //Serial.begin(9600);                               //serial comms for debugging
  display.begin(SSD1306_SWITCHCAPVCC, 0x3C);          //turn on ze bubble machine
  display.display();                                  //show display
  delay(500);                                         //pause
  display.clearDisplay();                             //clear display


}

void loop() {

 int pressed = (digitalRead(2));                      //pressed is set to state of pin 2

 //Serial.println(pressed);


                                                     // debounce routine
 if ( (millis() - lastDebounceTime) > debounceDelay) {

                                                     //if the button was pressed
    if ( (pressed == LOW) ) {

      count++;                                       // increment count -- ie the whole purpose for the program

      lastDebounceTime = millis();                   //set the current time
    }


  }

 int setToZero = (digitalRead(4));                  //did someone hit reset?
 if (setToZero == 0) count = 0;                     // set the count to zero
 // Serial.println(setToZero);

                                                    //show the vaule of count on the oled
  display.clearDisplay();
  display.setTextSize(5);
  display.setTextColor(WHITE);
  display.setCursor(0,0);
  display.clearDisplay();
  display.println(count);
  display.display();
}