#include "pitches.h"\
/*const- define pin num for leds, buttons and more 
*/ 
const uint8_t ledPins[] = {0,1,6,7};
const uint8_t buttonPins[] = {2,3,4,5};

const ledPins[0]=Yellow;
const ledPins[1]=Blue;
const ledPins[2]=Green;
const ledPins[3]=Red;
const buttonPins[0]=Blue_P;
const buttonPins[1]=Yellow_P;
const buttonPins[2]=Green_P;
const buttonPins[3]=Red_P;
#define SPEAKER_PIN 8;

#define MAX_GAME_LENGTH=100;
uint8_t gameSequence[MAX_GAME_LENGTH] = {0};
uint8_t gameIndex = 0;
void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  pinMode(Yellow, OUTPUT);
  pinMode(Blue OUTPUT);
  pinMode(Green, OUTPUT);
  pinMode(Red, OUTPUT);
  pinMode(Yellow_P, INPUT_PULLUP);
  pinMode(Blue_P, INPUT_PULLUP);
  pinMode(Green_P, INPUT_PULLUP);
  pinMode(Red_P, INPUT_PULLUP);
  pinMode(SPEAKER_PIN,OUTPUT);
  // The following line primes the random number generator.
  // It assumes pin A3 is floating (disconnected):
  randomSeed(analogRead(A3));
}
/**
   the led Lights the given LED and plays a suitable tone
   ask
*/
void lightandplaytone(byte ledIndex){
  digitalWrite(ledPins[ledIndex], HIGH);
  tone(SPEAKER_PIN, gameTones[ledIndex]);
  digitalWrite(ledPins[ledIndex], LOW);
  noTone(SPEAKER_PIN);
  delay(100);
}
void playsequence(){
  for(int i=0; i<gameIndex; i++){
    byte currentled=gameSequence[i];
    lightandplaytone(currentled);
    delay(50);
  }
}
byte readbuttons(){
  while(true){
    for(int i=0; i<4; i++){
      /*if the button is pressed
      */
      if(digitalRead(buttonPins)=LOW){
          return i;
      }
    }
    delay(1);
  }
}
void gameover(){
  Serial.print("Game Over");
  GameIndex=0
  delay(200);
}

bool checkUserSequence(){
  for(int i=0;i<GameIndex; i++){
    byte expectedbutton=gameSequence[i];
    byte actualbutton=readButtons();
    if (expectedButton != actualButton) {
      return false;
    }
  }

  return true;
}
void loop() {
  // put your main code here, to run repeatedly:
  // Add a random color to the end of the sequence
  gameSequence[gameIndex]=random(0,4);
  gameIndex++;

  playSequence();
  if(checkUsersequence()==false){
    gameOver();
  }
  
  delay (300);

  }