#include <IRremote.h>
#include <LedControl.h>
#include <LiquidCrystal.h>
#include <Servo.h>

/* LCD Setup lcd(rs, e, d4, d5, d6, d7)*/
LiquidCrystal lcd(2, 3, 4, 5, 6, 7);

// BUTTON, LED
int Buzzer = 13;
int Button = 12; // pin connected to push button.
int LEDR = 11;   // Red LED
int LEDGr = 10;  // Green LED
int LEDB = 9;    // Blue LED
int Beep;        // for speaker

// Reaction time game parameters
int PSE;    // Random pause time
int TME;    // time
int RTME = 0; // reaction time
int COLOUR;

//gamemodes, Easy Med Hard
//measuring rxn time
//use for remote
int EASY = 700;
int MED = 500;
int HARD = 350;
/* Pin Connection: IR Receiver*/
IRrecv rec(25);

//servo
Servo doorServo;
int doorState = 0; 


void setup()
{
  //Servo
  doorServo.attach(44);  //servo
  closeDoor();

  // LCD Setup
  lcd.begin(16, 2);
  lcd.clear();
  displayIntro(); // Display the intro

  // Set up Button, LED pins, buzzer?
  pinMode(LEDR, OUTPUT); // Set LED pins as output
  pinMode(LEDB, OUTPUT);
  pinMode(LEDGr, OUTPUT);
  pinMode(Button, INPUT); // Set pushbutton as input
  digitalWrite(LEDR, LOW); // Switch on all LED colors
  digitalWrite(LEDB, LOW);
  digitalWrite(LEDGr, LOW);

  // Serial.begin(9600);
  // // IR Receiver
  // rec.enableIRIn();
}

void displayIntro()
{
  lcd.clear();
  lcd.print("You are a guard.");
  lcd.setCursor(0, 1);
  lcd.print("Close the gates");
  delay(1000);
  lcd.clear();
  lcd.print("When the light");
  lcd.setCursor(0, 1);
  lcd.print("Turns RED!");
  delay(1000);
  lcd.clear();
  lcd.print("Hold Button");
  lcd.setCursor(0, 1);
  lcd.print("to begin.");
}

void openDoor() {
  doorServo.write(180);
  doorState = 1;
}

void closeDoor() {
 doorServo.write(0);
  doorState = 0;
}

void loop()
{
  playGame();
//   closeDoor();

//   if (digitalRead(Button) == LOW)
//   { // Test does not start until
//     // button is pushed (and held)
//     tone(13, 1200, 30);
//     delay(1400);
//     noTone(13);
//   }
//   lcd.clear();
//   digitalWrite(LEDR, HIGH); // Switch off start light
//   digitalWrite(LEDB, HIGH);
//   digitalWrite(LEDGr, HIGH);
//   randomSeed(analogRead(0)); // Random noise from pin 0
//   COLOUR = random(1, 4);      // Generate random color
//   PSE = random(500, 1200);    // Set random pause duration between lights
//   // Repeat this loop while color is green or blue AND pushbutton
//   // is held
//   while (COLOUR != 1 && digitalRead(Button) == HIGH)
//   {
//     digitalWrite(LEDGr, HIGH);
//     digitalWrite(LEDB, HIGH);
//     delay(PSE);
//     randomSeed(analogRead(0));
//     Beep = random(1, 4); // Select random beep from buzzer
//     // (buzzer beeps 1 in 3 times)
//     PSE = random(750, 1200); // Select random pause duration between
//     // lights (to increase surprise effect)
//     if (Beep == 1)
//     {
//       tone(13, 1600, 350);
//       delay(750);
//       noTone(13);
//     }
//     if (COLOUR == 2)
//     {
//       digitalWrite(LEDGr, LOW);
//     }
//     if (COLOUR == 3)
//     {
//       digitalWrite(LEDB, LOW);
//     }
//     delay(PSE);
//     randomSeed(analogRead(0));
//     COLOUR = random(1, 4); // Select random color
//   }
//   // Execute this loop if color is red
// if (COLOUR == 1 && digitalRead(Button) == HIGH)
// {
//   digitalWrite(LEDGr, HIGH);
//   digitalWrite(LEDB, HIGH);
//   delay(PSE);
//   TME = millis(); // Record time since program has started
//   digitalWrite(LEDR, LOW);
//   while (digitalRead(Button) == HIGH)
//   { // Runs until button is
//     // released, recording the
//     // reaction time
//     delay(1);
//   }
//   lcd.display();
//   RTME = millis() - TME; // Reaction time in ms
//   lcd.print("Time: "); // Display on LCD screen
//   lcd.print(RTME); // Print the reaction time
//   lcd.print(" ms"); // Print " ms" after the reaction time
//   if (RTME < EASY) {
//     lcd.setCursor(0, 1);
//     lcd.print("You win!");
//     openDoor();
//   } else {
//     lcd.setCursor(0, 1);
//     lcd.print("You lost :(");
//     closeDoor();

//   }
// }
//   // Execute if color is NOT red but the pushbutton is released
//   if (COLOUR != 1)
//   {
//     lcd.print("Released too");
//     lcd.setCursor(0, 1); // Move to second line
//     lcd.print("soon!!!");
//     tone(13, 3000, 1500);
//     delay(500);
//     noTone(13);
//   }
//   // Test does not restart until the button is pushed once
//   while (digitalRead(Button) == LOW)
//   {
//     delay(10);
//   }
//   digitalWrite(LEDR, LOW); // Reset all lights to begin again
//   digitalWrite(LEDB, LOW);
//   digitalWrite(LEDGr, LOW);
//   lcd.clear();
//   lcd.print("Hold Button to");
//   lcd.setCursor(0, 1);
//   lcd.print("start.");
//   int Time = 0;
//   delay(1000);
}


void playGame() {
  closeDoor();

  if (digitalRead(Button) == LOW)
  { // Test does not start until
    // button is pushed (and held)
    tone(13, 1200, 30);
    delay(1400);
    noTone(13);
  }
  lcd.clear();
  digitalWrite(LEDR, HIGH); // Switch off start light
  digitalWrite(LEDB, HIGH);
  digitalWrite(LEDGr, HIGH);
  randomSeed(analogRead(0)); // Random noise from pin 0
  COLOUR = random(1, 4);      // Generate random color
  PSE = random(500, 1200);    // Set random pause duration between lights
  // Repeat this loop while color is green or blue AND pushbutton
  // is held
  while (COLOUR != 1 && digitalRead(Button) == HIGH)
  {
    digitalWrite(LEDGr, HIGH);
    digitalWrite(LEDB, HIGH);
    delay(PSE);
    randomSeed(analogRead(0));
    Beep = random(1, 4); // Select random beep from buzzer
    // (buzzer beeps 1 in 3 times)
    PSE = random(750, 1200); // Select random pause duration between
    // lights (to increase surprise effect)
    if (Beep == 1)
    {
      tone(13, 1600, 350);
      delay(750);
      noTone(13);
    }
    if (COLOUR == 2)
    {
      digitalWrite(LEDGr, LOW);
    }
    if (COLOUR == 3)
    {
      digitalWrite(LEDB, LOW);
    }
    delay(PSE);
    randomSeed(analogRead(0));
    COLOUR = random(1, 4); // Select random color
  }
  // Execute this loop if color is red
  if (COLOUR == 1 && digitalRead(Button) == HIGH)
  {
  digitalWrite(LEDGr, HIGH);
  digitalWrite(LEDB, HIGH);
  delay(PSE);
  TME = millis(); // Record time since program has started
  digitalWrite(LEDR, LOW);
  while (digitalRead(Button) == HIGH)
  { // Runs until button is
    // released, recording the
    // reaction time
    delay(1);
  }
  lcd.display();
  RTME = millis() - TME; // Reaction time in ms
  lcd.print("Time: "); // Display on LCD screen
  lcd.print(RTME); // Print the reaction time
  lcd.print(" ms"); // Print " ms" after the reaction time
  if (RTME < EASY) {
    lcd.setCursor(0, 1);
    lcd.print("You win!");
    openDoor();
  } else {
    lcd.setCursor(0, 1);
    lcd.print("You lost :(");
    closeDoor();

  }
  }
  // Execute if color is NOT red but the pushbutton is released
  if (COLOUR != 1)
  {
    lcd.print("Released too");
    lcd.setCursor(0, 1); // Move to second line
    lcd.print("soon!!!");
    tone(13, 3000, 1500);
    delay(500);
    noTone(13);
  }
  // Test does not restart until the button is pushed once
  while (digitalRead(Button) == LOW)
  {
    delay(10);
  }
  digitalWrite(LEDR, LOW); // Reset all lights to begin again
  digitalWrite(LEDB, LOW);
  digitalWrite(LEDGr, LOW);
  lcd.clear();
  lcd.print("Hold Button to");
  lcd.setCursor(0, 1);
  lcd.print("start.");
  int Time = 0;
  delay(1000);
}