int score = 0;
int button = 2;
int a = 3;

void setup() {
  Serial.begin(9600);
  pinMode(button, INPUT);
  for(int x = 3; x <= 11; x++)
   {
    pinMode(x, OUTPUT);
   }
  Serial.println("Gameplay: ");
  Serial.println("The led that you want will light up for 2 seconds");
  Serial.println("The leds will then light up in rotation");
  Serial.println("When the led you want is lit up, press the button");
  Serial.println("If the led you want is still lit up, your score goes up");
  Serial.println();
  Serial.println("Get the highscore and beat all your friends in this fast paced, exciting, and fun game!!! :) ");
  Serial.println();
  Serial.println();
}
// the loop routine runs over and over again forever:
void loop() {
  randomSeed(analogRead(A0));
  int goal = random(3, 11);
  Serial.print("Your goal is pin: ");
  Serial.println(goal);
  digitalWrite(goal, HIGH);
  delay(2000);
  digitalWrite(goal, LOW);
  while(digitalRead(button)==LOW)
    {
      if(a >3)
        digitalWrite((a-1), LOW);
      else
        digitalWrite(11, LOW);
      digitalWrite(a, HIGH);
      delay(150);
      if(a >= 11)
        a = 3;
      else
        a++;
    }
  if((a-1)==goal)
    {
    score++;
      if(score >= highscore)
        {
          highscore = score;
        }
        Serial.print("Congratulations! Your score is: ");
        Serial.println(score);
    }
  else
    {
    Serial.println("Sorry, your game is over :(");
    Serial.print("Your score was: ");
    Serial.print(score);
    Serial.println("Press the reset button to start again");
    while(1);
    }
}