const int ledPin =  5;
const int buttonPin = 8;
int buttonState = 0;
int gamebuttonState = 0;
int previousButtonState = 0;
int counter = 0;
unsigned long gameTimer;
bool gameStarted = false;


void setup() {
  Serial.begin(9600);
  pinMode(ledPin, OUTPUT);
  pinMode(buttonPin, INPUT);
 }

void loop() {
  buttonState = digitalRead(buttonPin);
  if (buttonState == HIGH && !gameStarted) {
    flashThree();
    gameStarted = true;
    digitalWrite(ledPin, HIGH);
    game();
    gameStarted=false;
    Serial.println(counter);
    flashThree();
  }

}

 void flashThree() {
    digitalWrite(ledPin, HIGH);
    delay(1000);
    digitalWrite(ledPin, LOW);
    delay(1000);
    digitalWrite(ledPin, HIGH);
    delay(1000);
    digitalWrite(ledPin, LOW);
    delay(1000);
    digitalWrite(ledPin, HIGH);
    delay(1000);
    digitalWrite(ledPin, LOW);
  }


void game() {
  counter=0;
  gameTimer=millis();
  while (millis()-gameTimer < 5000) {
    previousButtonState = buttonState;
    buttonState = digitalRead(buttonPin);
    if (previousButtonState != buttonState && buttonState == HIGH) {
      counter+=1;
    }
  }
}