// C++ code for Arduino UNO and UNO ajacent boards
//TXT boy game console
#include <LiquidCrystal.h>
LiquidCrystal lcd(12, 11, 5, 4, 3, 2); //declares pins used by LCD
#define IN1  6
#define IN2  8
#define IN3  7
int Dturn = 0;
int player = 0;
int playerNum = 0;
int dealer = 0;
int menupress = 0;
int bState1 = 0;
int bState2 = 0;
int bState3 = 0;
int Dchance = 0;
int gameFinnish = 0;
int randNum = 0;
int CPUchoice = 0;
int mathA = 0;
int mathB = 0;
int mathC = 0;
int asnwerRNG = 0;
int fail = 0;
int num1 = 0;
int num2 = 0;
unsigned long startTime = 0;
#define RNG  A0
#define SPKR  9 
enum ProgramState { //states for game switching
  MENU_STATE,
  BLJ_STATE,
  GUESS_STATE,
  RPS_STATE,
  REACT_STATE,
  QUIZ_STATE,
  BALL_STATE
};
int pgm_state = MENU_STATE;
const char* Msg[] = { //messages for magic 8 ball
  "Yes", 
  "No", 
  "Try again", 
  "Maybe", 
  "Definitely", 
  "Most likely", 
  "Probably not"
};

void setup()
{
  pinMode(RNG, INPUT);
  randomSeed(analogRead(RNG)); // sets number generation seed
  lcd.begin(16, 2); // Set up the number of columns and rows on the LCD.
  pinMode( IN1, INPUT);// all IN are buttons
  pinMode( IN2, INPUT);
  pinMode( IN3, INPUT);
   pinMode(SPKR, OUTPUT);
  tone(SPKR, 200, 600);
  delay(100);
  tone(SPKR, 600, 500);
  lcd.setCursor(0, 0);
  lcd.print("  SELECT GAME");
  lcd.setCursor(0, 2);
  lcd.print(" PRESS BUTTON 1");//sets up start menu
    Serial.begin(9600); 
}

void loop()
{
  if (pgm_state == MENU_STATE) {
    bState1 = digitalRead(IN1);
  bState2 = digitalRead(IN2);
  bState3 = digitalRead(IN3); // Read inputs

    if (bState1 == HIGH) {
      menupress += 1; //position on menu
       tone(SPKR, 600, 20);
      delay(200);// delay for accuracy
    }
    if (menupress == 1) {
      BLJ(); //start blackjack start menu
    }
    if (menupress == 2) {
      numGuess(); //start number guess game
    }
    if (menupress == 3){
      RPS(); // start rock paper scisors
    }
    if (menupress == 4){
      react();
    }
    if (menupress == 5){
      quiz(); 
    }
    if (menupress == 6){
     RNGball(); 
    }
    if (menupress > 6) {
      menupress = 1; // if greater than planned selection, go back to start of list
    }
  }

  if (pgm_state == BLJ_STATE) {
    Gam1();
  }
  if (pgm_state == GUESS_STATE){
    Gam2();
  }
   if (pgm_state == RPS_STATE){
     Gam3();
  }
   if (pgm_state == REACT_STATE){
     Gam4();
   }
  if (pgm_state == QUIZ_STATE){
     Gam5();
  }
  if (pgm_state == BALL_STATE){
    Gam6();
  }
}

void BLJ()
{
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("PLAY BLACKJACK?");
  lcd.setCursor(0, 2);
  lcd.print("3 = yes 1=next");
  delay(100);
 bState3 = digitalRead(IN3);// read 3rd button
  if (bState3 == 1) {
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Press 1 to start.");
    pgm_state = BLJ_STATE;
  }
}
void numGuess()
{
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("PLAY NUMGUESS?");
  lcd.setCursor(0, 2);
  lcd.print("3 = yes 1=next");
  delay(100);
 bState3 = digitalRead(IN3);// read 3rd button
  if (bState3 == 1) {
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Guess 1-100");
     randNum = random(1, 100);
 Serial.println(randNum); //numGuess game debugging
    pgm_state =  GUESS_STATE;
  }
}
void RPS()
{
 lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("PLAY RPS?");
  lcd.setCursor(0, 2);
  lcd.print("3 = yes 1=next");
  delay(100);
 bState3 = digitalRead(IN3);// read 3rd button
  if (bState3 == 1) {
     lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("1=rock  2=paper");
    lcd.setCursor(0, 2);
    lcd.print("   3=scicors");
     randNum = random(1, 3);
 Serial.println(randNum); //numGuess game debugging
    delay(1000);
    pgm_state =  RPS_STATE;
    
}
}
void react()
{
 lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("PLAY Reaction?");
  lcd.setCursor(0, 2);
  lcd.print("3 = yes 1=next");
  delay(100);
 bState3 = digitalRead(IN3);// read 3rd button
  if (bState3 == 1) {
     lcd.clear();
    lcd.setCursor(0, 2);
    lcd.print("Press 3 to start.");;
    CPUchoice = random(1000, 1600);
 Serial.println(CPUchoice); //numGuess game debugging
    delay(1000);
    pgm_state =  REACT_STATE; 
}
}
  void quiz(){
     lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("PLAY MATH QUIZ?");
  lcd.setCursor(0, 2);
  lcd.print("3 = yes 1=next");
  delay(100);
 bState3 = digitalRead(IN3);// read 3rd button
  if (bState3 == 1) {
     lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("  Keep going");
    lcd.setCursor(0, 2);
    lcd.print("until incorect");
    randNum = random(1, 3);
    delay(1000);
    pgm_state =  QUIZ_STATE;
  }
  }
  void RNGball(){
     lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("PLAY 8 BALL?");
  lcd.setCursor(0, 2);
  lcd.print("3 = yes 1=next");
  delay(100);
 bState3 = digitalRead(IN3);// read 3rd button
  if (bState3 == 1) {
     lcd.clear();
    lcd.setCursor(0, 2);
    lcd.print("Press 3 for guidence.");;
    String randomMessage = Msg[random (0, 6)];
    pgm_state =  BALL_STATE;
  }   
}
void Gam1() {
  Dchance = random(0, 20);
  bState1 = digitalRead(IN1);
  bState2 = digitalRead(IN2);
  bState3 = digitalRead(IN3); // Read inputs

  // 1. DEALING 
  if ((bState1 == 1) && (player + dealer == 0)) {  
    player = random(2, 21);
    dealer = random(2, 21);
    refreshBLJ();
    delay(200);
  } 
  
  // 2. PLAYER HITS (Button 3)
  else if (player > 0 && bState3 == 1) { 
    tone(SPKR, 600, 20);
    player += random(1, 10);
    if (player > 21) {
      lcd.clear();
      lcd.print("  DEALER WINS!");
      lcd.setCursor(0, 2);
      lcd.print("YOU WENT OVER 21");
      
      
      delay(2000);
      endGame();
    } else {
      refreshBLJ();
      delay(300); 
    }
  }

  else if (player > 0 && bState2 == 1) {
    dealerAI();
  }
}
void dealerAI() {
  // Use a while loop so the dealer keeps taking cards until 17
  while (dealer < 17) {
    dealer += random(1, 10);
    tone(SPKR, 600, 20);
    refreshBLJ();
    delay(800); // Wait so player can see the dealer's progress
  }

  // Final Scoring Logic
  lcd.clear();
  if (dealer > 21 || player > dealer) {
    lcd.print("   YOU WIN!");
    tone(SPKR, 1000, 800);
  } else if (dealer > player) {
    lcd.print("  DEALER WINS!");
    tone(SPKR, 200, 800);
  } else {
    lcd.print("  PUSH! (TIE)");
    tone(SPKR, 600, 800);
  }
  
  delay(3000);
  endGame();
}
// Helper function to update LCD for blackjack
void refreshBLJ() {
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Player");
  lcd.setCursor(0, 2);
   lcd.print(player);
  lcd.setCursor(8, 0);
  lcd.print("Dealer");
  lcd.setCursor(10, 2);
  lcd.print(dealer);
}
void Gam2()
{
  bState1 = digitalRead(IN1);
  bState2 = digitalRead(IN2);
  bState3 = digitalRead(IN3); // Read inputs 
if (bState2 == 1) { playerNum++;       
       lcd.clear();
      tone(SPKR, 600, 20);             
      lcd.setCursor(0, 2);
      lcd.print(playerNum);delay(150); }
  if (digitalRead(IN1) == HIGH) { playerNum--;
     tone(SPKR, 600, 20);                            
      lcd.clear();                           
      lcd.setCursor(0, 2);
      lcd.print(playerNum); delay(150); }
  
  if ((bState3 == 1) && (playerNum > 0)) {
    tone(SPKR, 600, 20);
    lcd.clear(); // clears screen in prep to display if player is right
    if (playerNum == randNum) {
      lcd.print("CORRECT!");
      lcd.setCursor(4, 2);
      lcd.print("Guesses:");
      lcd.setCursor(9, 2);
      lcd.print(player);
      tone(SPKR, 500, 400);
      delay(200);
      tone(SPKR, 1000, 500); 
      delay(2000);
      endGame();// Return to menu
    } else if (playerNum < randNum) {
      lcd.print("HIGHER"); // Feedback logic
      player ++;
      delay(400);
    } else {
      lcd.print("LOWER");
      player ++;
      delay(400);
    }
    lcd.clear();
  }
  }
void Gam3()
{
  bState1 = digitalRead(IN1); 
  bState2 = digitalRead(IN2);
  bState3 = digitalRead(IN3); // Read inputs 
  if (bState1 == 1){
    tone(SPKR, 600, 20);
    player = 1;
    play();
  }else if (bState2 == 1){
    tone(SPKR, 600, 20);
    player = 2;
     play();
  } else if (bState3 == 1){
    tone(SPKR, 600, 20);
    player = 3;
   Serial.println(player); 
     play();
  }
}
void play()
{
  if ( player == randNum){
   lcd.clear();
   lcd.print("TIE!");
    delay(2000);
   endGame(); 
  }else if((player == 1) && (randNum == 2)){
    lcd.clear();
   lcd.print("YOU LOSE!");
    delay(2000);
   endGame(); 
  }else if((player == 2) && (randNum == 1)){
    lcd.clear();
   lcd.print("YOU WIN!!");
    delay(2000);
   endGame(); 
  }else if((player == 2) && (randNum == 3)){
    lcd.clear();
   lcd.print("YOU LOSE!");
    delay(2000);
   endGame(); 
  }else if((player == 3) && (randNum == 2)){
    lcd.clear();
   lcd.print("YOU WIN!!");
    delay(2600);
   endGame(); 
  }
}

void Gam4()
{
  bState3 = digitalRead(IN3); 
  
  if (bState3 == 1) {
    lcd.clear();
    lcd.print("ready...");
    delay(CPUchoice);
  tone(SPKR, 1000, 800);
    lcd.clear();
    lcd.print("PRESS BUTTON 1!!");
    unsigned long startTime = millis(); // Localize for accuracy
    
    // Check the pin directly in the loop
    while (digitalRead(IN1) == LOW); 
    unsigned long reactionTime = millis() - startTime;
    lcd.clear();
    lcd.print("Your time was:");
    lcd.setCursor(0, 2); 
    lcd.print(reactionTime / 1000.0);
     lcd.setCursor(7, 2);
    lcd.print(" seconds");
          tone(SPKR, 500, 400);
      delay(200);
      tone(SPKR, 1000, 500); 
    delay(2000);
    endGame();
  }
}
  void Gam5()
  {
     bState1 = digitalRead(IN1);
  bState2 = digitalRead(IN2);
  bState3 = digitalRead(IN3); // Read inputs
 if (num1 + num2 == 0){
  Mathset(); 
 }
       if ((bState3 == 1) && (mathC == asnwerRNG)){
      delay(100);
      player + 1;
       num1 = 0;
      num2 = 0;     
       }
    //if the player is right
       if ((bState1 == 1) && (mathA == asnwerRNG)){
      delay(100);
      player + 1;
      Mathset();  
       }
       if ((bState2 == 1) && (mathB == asnwerRNG)){
      delay(100);
      player + 1;
      Mathset();  
       }
    // if the player is wrong
       if ((bState3 == 1) && (mathC != asnwerRNG)){
      delay(100);
      mathEnd();  
       }
       if ((bState1 == 1) && (mathA != asnwerRNG)){
      delay(100);
      mathEnd();  
       }
       if ((bState2 == 1) && (mathB != asnwerRNG)){
      delay(100);
      mathEnd();  
       }   
    }
  void Mathset(){
    num1 =  random(1, 100);
    num2 =  random(1,100);  
   asnwerRNG = num1 + num2;
    if( randNum == 1){
      mathA = asnwerRNG;
      mathB = asnwerRNG - random(1, 20);
    }else if( randNum == 2){
      mathB = asnwerRNG;
    }else{
      mathC = asnwerRNG;
    }
    lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print(num1);
  lcd.setCursor(3, 0);
  lcd.print("+");
   lcd.setCursor(4, 0);
   lcd.print(num2); 
    lcd.setCursor(7, 0);
   lcd.print("= ?");  
  lcd.setCursor(0, 2);
  lcd.print(mathA);
  lcd.setCursor(5, 2);
  lcd.print(mathB);
  lcd.setCursor(9, 2);
  lcd.print(mathC);
    }
    void mathEnd() {
        lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("GAME OVER!");
      lcd.setCursor(0, 2);
  lcd.print("Your score:");
        lcd.setCursor(11, 2);
  lcd.print(player);  
    delay(2000);
      endGame();
    }

  void Gam6() {
   bState1 = digitalRead(IN1);
  bState3 = digitalRead(IN3); // declare inputs
 delay(100); //button debouncing
  if (bState3 == 1) {
    tone(SPKR, 600, 20);
    lcd.clear();
    lcd.setCursor(0, 0);
    int index = random(0, 6);
    delay(600); // because of cance of repeating messages, delay to show it is a new response
    lcd.print(Msg[index]);
    delay(100);
  }
    if (bState1 == 1){
     endGame(); 
    }
  }

void endGame(){
  // reset all potentally used varaibles
 startTime = 0;
   playerNum = 0;
     dealer = 0;
     player = 0;
     Dchance = 0;
   randNum = 0;
  CPUchoice = 0;
  asnwerRNG = 0;
   mathA = 0;
    mathB = 0;
    mathC = 0;
    menupress = 0;
    pgm_state = MENU_STATE; // reset state
     tone(SPKR, 523, 500);
  tone(SPKR, 600, 500);
  lcd.clear(); 
  lcd.setCursor(0, 0);
  lcd.print("  SELECT GAME");
  lcd.setCursor(0, 2);
  lcd.print(" PRESS BUTTON 1");//sets up start menu 
}