/*


The circuit:
* LCD RS pin to A0
* LCD Enable pin A1
* LCD D4 pin to A2
* LCD D5 pin to A3
* LCD D6 pin to A4
* LCD D7 pin to A5
* LCD R/W pin to ground
* 10K resistor:
* ends to +5V and ground
* wiper to LCD VO pin (pin 3)

*/

// include the library code:
#include <LiquidCrystal.h>
#include <Tone.h>

// initialize the library with the numbers of the interface pins
LiquidCrystal lcd(A0, A1, A2, A3, A4, A5);
// ( RS, E, D4, D5, D6, D7)

Tone speakerpin;
int starttune[] = {
NOTE_C4, NOTE_F4, NOTE_C4, NOTE_F4, NOTE_C4, NOTE_F4, NOTE_C4, NOTE_F4, NOTE_G4, NOTE_F4, NOTE_E4, NOTE_F4, NOTE_G4};
int duration2[] = {
100, 200, 100, 200, 100, 400, 100, 100, 100, 100, 200, 100, 500};
int note[] = {
NOTE_C4, NOTE_C4, NOTE_G4, NOTE_C5, NOTE_G4, NOTE_C5};
int duration[] = {
100, 100, 100, 300, 100, 300};
int button[] = {2, 3, 4, 5}; //The four button input pins
int ledpin[] = {8, 9, 10, 11}; // LED pins
int turn = 0; // turn counter
int buttonstate = 0; // button state checker
int randomArray[100]; //Intentionally long to store up to 100 inputs
int inputArray[100];
int highscore = 0;
int MyScore;
void setup()
{
lcd.begin(16, 2);
lcd.clear();
lcd.setCursor(0, 1);
lcd.print("Your Score: 0");
lcd.setCursor(0, 0);
lcd.print("High Score: 0");
Serial.begin(9600);
speakerpin.begin(12); // speaker is on pin 12
for(int x=0; x<4; x++) // LED pins are outputs
{
pinMode(ledpin[x], OUTPUT);
}
for(int x=0; x<4; x++)
{
pinMode(button[x], INPUT); // button pins are inputs
digitalWrite(button[x], HIGH); // enable internal pullup; buttons start in high position; logic reversed
}
randomSeed(analogRead(A7)); //Added to generate "more randomness" with the randomArray for the output function
for (int thisNote = 0; thisNote < 13; thisNote ++) {
// play the next note:
speakerpin.play(starttune[thisNote]);
// hold the note:
if (thisNote==0 || thisNote==2 || thisNote==4 || thisNote== 6)
{
digitalWrite(ledpin[0], HIGH);
}
if (thisNote==1 || thisNote==3 || thisNote==5 || thisNote== 7 || thisNote==9 || thisNote==11)
{
digitalWrite(ledpin[1], HIGH);
}
if (thisNote==8 || thisNote==12)
{
digitalWrite(ledpin[2], HIGH);
}
if (thisNote==10)
{
digitalWrite(ledpin[3], HIGH);
}
delay(duration2[thisNote]);
// stop for the next note:
speakerpin.stop();
digitalWrite(ledpin[0], LOW);
digitalWrite(ledpin[1], LOW);
digitalWrite(ledpin[2], LOW);
digitalWrite(ledpin[3], LOW);
delay(25);
}
delay(1000);
}
void loop()
{
for (int y=0; y<=99; y++)
{
digitalWrite(ledpin[0], LOW);
digitalWrite(ledpin[1], LOW);
digitalWrite(ledpin[2], LOW);
digitalWrite(ledpin[3], LOW);

for (int y=turn; y <= turn; y++)
{ //Limited by the turn variable
Serial.println(""); //Some serial output to follow along
Serial.print("Turn");
lcd.clear();

MyScore=y;

lcd.setCursor(0, 1);
lcd.print("Your Score: ");
lcd.setCursor(12, 1);
lcd.print(MyScore);
if(MyScore > highscore) {
highscore = y;
}
lcd.setCursor(0, 0);
lcd.print("High Score: " + (String)(highscore));


Serial.print(y);
Serial.println("");

delay(1000);

randomArray[y] = random(1, 5); //Assigning a random number (1-4)
for (int x=0; x <= turn; x++)
{
Serial.print(randomArray[x]);
for(int y=0; y<4; y++)
{
if (randomArray[x] == 1 && ledpin[y] == 8)
{ //if statements to display the stored values in the array
digitalWrite(ledpin[y], HIGH);
speakerpin.play(NOTE_G3, 100);
delay(400);
digitalWrite(ledpin[y], LOW);
delay(100);
}
if (randomArray[x] == 2 && ledpin[y] == 9)
{
digitalWrite(ledpin[y], HIGH);
speakerpin.play(NOTE_A3, 100);
delay(400);
digitalWrite(ledpin[y], LOW);
delay(100);
}
if (randomArray[x] == 3 && ledpin[y] == 10)
{
digitalWrite(ledpin[y], HIGH);
speakerpin.play(NOTE_B3, 100);
delay(400);
digitalWrite(ledpin[y], LOW);
delay(100);
}
if (randomArray[x] == 4 && ledpin[y] == 11)
{
digitalWrite(ledpin[y], HIGH);
speakerpin.play(NOTE_C4, 100);
delay(400);
digitalWrite(ledpin[y], LOW);
delay(100);
}
}
}
}
input();
}
}
void input() { //Function for allowing user input and checking input against the generated array
for (int x=0; x <= turn;)
{ //Statement controlled by turn count
for(int y=0; y<4; y++)
{
buttonstate = digitalRead(button[y]);
if (buttonstate == 0 && button[y] == 2)
{ //Checking for button push
digitalWrite(ledpin[0], HIGH);
speakerpin.play(NOTE_G3, 100);
delay(200);
digitalWrite(ledpin[0], LOW);
inputArray[x] = 1;
delay(250);
Serial.print(" ");
Serial.print(1);
if (inputArray[x] != randomArray[x]) { //Checks value input by user and checks it against
fail(); //the value in the same spot on the generated array
} //The fail function is called if it does not match


x++;
}
if (buttonstate == 0 && button[y] == 3)
{
digitalWrite(ledpin[1], HIGH);
speakerpin.play(NOTE_A3, 100);
delay(200);
digitalWrite(ledpin[1], LOW);
inputArray[x] = 2;
delay(250);
Serial.print(" ");
Serial.print(2);
if (inputArray[x] != randomArray[x]) {
fail();
}
x++;
}
if (buttonstate == 0 && button[y] == 4)
{
digitalWrite(ledpin[2], HIGH);
speakerpin.play(NOTE_B3, 100);
delay(200);
digitalWrite(ledpin[2], LOW);
inputArray[x] = 3;
delay(250);
Serial.print(" ");
Serial.print(3);
if (inputArray[x] != randomArray[x]) {
fail();
}
x++;
}
if (buttonstate == 0 && button[y] == 5)
{
digitalWrite(ledpin[3], HIGH);
speakerpin.play(NOTE_C4, 100);
delay(200);
digitalWrite(ledpin[3], LOW);
inputArray[x] = 4;
delay(250);
Serial.print(" ");
Serial.print(4);
if (inputArray[x] != randomArray[x])
{
fail();
}
x++;
}
}
}
delay(500);
turn++; //Increments the turn count, also the last action before starting the output function over again
}
void fail() { //Function used if the player fails to match the sequence
for (int y=0; y<=2; y++)
{ //Flashes lights for failure

digitalWrite(ledpin[0], HIGH);
digitalWrite(ledpin[1], HIGH);
digitalWrite(ledpin[2], HIGH);
digitalWrite(ledpin[3], HIGH);
speakerpin.play(NOTE_G3, 300);
delay(200);
digitalWrite(ledpin[0], LOW);
digitalWrite(ledpin[1], LOW);
digitalWrite(ledpin[2], LOW);
digitalWrite(ledpin[3], LOW);
speakerpin.play(NOTE_C3, 300);
delay(200);
lcd.clear();
lcd.setCursor(0, 0);
lcd.print("Good Game!");








}

delay(2000);

lcd.clear();
lcd.setCursor(0, 0);
lcd.print("High: " + (String) (highscore));
// Serial.print(y);
// Serial.println("");
lcd.setCursor(9, 0);
lcd.print("You: ");
lcd.setCursor(14, 0);
lcd.print(MyScore);
// if(y > highscore) {
// highscore = y;
// }
lcd.setCursor(0, 1);
lcd.print("<-Press to play again!");


{

// buttonstate = digitalRead(button[y]);

while (digitalRead(button[0]) > 0 &&digitalRead(button[1]) > 0 && digitalRead(button[2]) > 0 && digitalRead(button[3]) > 0 ){

int i;

for (i = 0; i < 3; i++) { // loop through each pin...
digitalWrite(ledpin[i], HIGH); // turning it on,
delay(100); // pausing,
digitalWrite(ledpin[i], LOW); // and turning it off.
}
for (i = 3; i >= 0; i--) {
digitalWrite(ledpin[i], HIGH);
delay(100);
digitalWrite(ledpin[i], LOW);
}
}

delay(1000);


turn = -1; //Resets turn value so the game starts over without need for a reset button
}
}