Game Logik - Mastermind

Arduino Mastermind Logik Schematics ~~Code~~ WS2812

Mastermind - YT Video:

The game is designed for two players who play the game

Player 1 (guess numbers and position)

The role of the player is to guess the numbers of the other player and their order

The player uses a 5x pushbutton to enter the system, while 4 of the buttons function as a number incrementer at that position in the 0-9 range.

The fifth button sends the data for review. The addition is attempted, the combination is evaluated.

Data is recorded and visualized on the LCD display.

If the player guesses the number and its position, the green diode on that position lights up.

Otherwise, if the number is not entered, or when the number is guessed, but the position is not judged, the red diode lights up.

For a player, the game ends when 10 attempts are exceeded or when the combination is guessed.

Player 2 (determines combination of colors, position)

In the role of microcontroller Arduino Uno, or other, or AtMega chip.

Generates the number 0000-9999 that the player will guess

Sent data is verified by user by simple conditional logic

If both color and position are guessed, the corresponding diode turns green.

In the event of color failure or position, the respective LED lights up red.

The Arduino also verifies the number of moves the player has used, examines whether the game is over.

The game ends when player 1 guesses all numbers and their positions (all 4 diodes will be green), the entry will be blocked, or 10 attempts will fail.

The user is always informed about the game status on the display.

Hardware for the project

Arduino Uno R3

4x RGB LED WS2812(one module)

5x button - switching

LCD 20x4 or 16x2

I2C converter for LCD

Engagement

LCD display with I2C converter	Arduino Uno
Vcc	5V
GND	GND
SDA	A4 (SDA)
SCK/SCL	A5 (SCK/SCL)
Pushbutton	Arduino Uno
IN 1	D2
IN 2	D3
IN 3	D4
IN 4	D5
Enter	D6
RGB led diodes	Arduino Uno
DIN	D13
GND	GND
5V	-

The 5V pin is connected to an external power supply due to a large current draw, especially when all diodes are on, in the order of 200mA.

Mastermind - playing field - DEBUG OFF

Mastermind - playing field - DEBUG ON

Autodesk Eagle export (Wiring)

Mastermind - Arduino - Source

Wokwi Mastermind simulation: HERE

/*|----------------------------------------------------------------------------|*/
/*|SKETCH PRE MASTERMIND IMPLEMENTACIU                                         |*/
/*|VYHOTOVIL: martinius96@gmail.com                                            |*/
/*|Doska: Arduino Uno / ATmega328P                                             |*/
/*|MAXIMALNY POCET POKUSOV: 10                                                 |*/
/*|POCET VSTUPOV: 5X PUSHBUTTON - SPINACIE TLACIDLA                            |*/
/*|VYGENEROVANE 4-CISLIE: KAZDE CISLO JE ROZNE V ROZSAHU 0-9 BEZ OPAKOVANIA!   |*/
/*|PRE ZOBRAZENIE VYGENEROVANEHO CISLA POUZITE DEBUG (ODKOMENTOVAT)            |*/
/*|----------------------------------------------------------------------------|*/
/*|VYSVETLIVKY PRE ZNAČKY NA DISPLEJI:                                         |*/
/*| C --> uhadnute cislo na inej pozicii                                       |*/
/*| = --> uhadnute cislo aj s poziciou (SPRAVNE CISLO!)                        |*/
/*| - --> neuhadnute cislo, ani pozicia                                        |*/
/*|----------------------------------------------------------------------------|*/
/*|Podporte projekt pre viac variant: https://paypal.me/chlebovec              |*/
/*|----------------------------------------------------------------------------|*/

#define DEBUG //odkomentuj pre DEBUG INFO (ZOBRAZENIE HLADANEHO CISLA)
//#define NULUJ //vynuluj cisla po zadani ENTEROM
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 20, 4);

const int buttonPin1 = 6;
const int buttonPin2 = 5;
const int buttonPin3 = 4;
const int buttonPin4 = 3;
const int buttonPin5 = 2;

int cislo1 = 0;
int cislo2 = 0;
int cislo3 = 0;
int cislo4 = 0;


int cielovecislo1 = 0;
int cielovecislo2 = 0;
int cielovecislo3 = 0;
int cielovecislo4 = 0;

int buttonState1 = HIGH;
int buttonState2 = HIGH;
int buttonState3 = HIGH;
int buttonState4 = HIGH;
int buttonState5 = HIGH;

int lastButtonState1 = HIGH;
int lastButtonState2 = HIGH;
int lastButtonState3 = HIGH;
int lastButtonState4 = HIGH;
int lastButtonState5 = HIGH;

unsigned long lastDebounceTime1 = 0;
unsigned long lastDebounceTime2 = 0;
unsigned long lastDebounceTime3 = 0;
unsigned long lastDebounceTime4 = 0;
unsigned long lastDebounceTime5 = 0;
unsigned long debounceInterval = 50;
int pokus = 0;

void setup() {
  lcd.begin(); //incializacia displeja na I2C zbernici
  lcd.backlight(); //zapnutie podsvietenia
  pinMode(buttonPin1, INPUT_PULLUP);
  pinMode(buttonPin2, INPUT_PULLUP);
  pinMode(buttonPin3, INPUT_PULLUP);
  pinMode(buttonPin4, INPUT_PULLUP);
  pinMode(buttonPin5, INPUT_PULLUP);
  randomSeed(analogRead(0));
  lcd.setCursor(0, 0); //nastav kurzor pre zapis na 1. riadok, 1. stlpec
  lcd.print("ZADANE CISLO:   0000");
  generuj_cisla();
#ifdef DEBUG
  lcd.setCursor(0, 2);
  lcd.print("DEBUG ON:");
  lcd.setCursor(0, 3);
  lcd.print("HLADANE CISLO:  ");
  lcd.print(cielovecislo1);
  lcd.print(cielovecislo2);
  lcd.print(cielovecislo3);
  lcd.print(cielovecislo4);
#endif
}

void loop() {
  if (pokus >= 10) {
    lcd.setCursor(0, 2);
    lcd.print("PREHRALI STE!");
    lcd.setCursor(0, 3);
    lcd.print("KONIEC HRY          ");
    while (1);
  } else {
    int reading1 = digitalRead(buttonPin1);
    int reading2 = digitalRead(buttonPin2);
    int reading3 = digitalRead(buttonPin3);
    int reading4 = digitalRead(buttonPin4);
    int reading5 = digitalRead(buttonPin5);

    if (reading1 != lastButtonState1) {
      lastDebounceTime1 = millis();
    }

    if (reading2 != lastButtonState2) {
      lastDebounceTime2 = millis();
    }

    if (reading3 != lastButtonState3) {
      lastDebounceTime3 = millis();
    }

    if (reading4 != lastButtonState4) {
      lastDebounceTime4 = millis();
    }

    if (reading5 != lastButtonState5) {
      lastDebounceTime5 = millis();
    }

    if ((millis() - lastDebounceTime1) > debounceInterval) {
      if (reading1 != buttonState1) {
        buttonState1 = reading1;
        if (buttonState1 == HIGH) {
          cislo1++;
          if (cislo1 > 9) {
            cislo1 = 0;
          }
        }
      }
      updateLCD();
    }

    if ((millis() - lastDebounceTime2) > debounceInterval) {
      if (reading2 != buttonState2) {
        buttonState2 = reading2;
        if (buttonState2 == HIGH) {
          cislo2++;
          if (cislo2 > 9) {
            cislo2 = 0;
          }
        }
      }
      updateLCD();
    }

    if ((millis() - lastDebounceTime3) > debounceInterval) {
      if (reading3 != buttonState3) {
        buttonState3 = reading3;
        if (buttonState3 == HIGH) {
          cislo3++;
          if (cislo3 > 9) {
            cislo3 = 0;
          }
        }
      }
      updateLCD();
    }

    if ((millis() - lastDebounceTime4) > debounceInterval) {
      if (reading4 != buttonState4) {
        buttonState4 = reading4;
        if (buttonState4 == HIGH) {
          cislo4++;
          if (cislo4 > 9) {
            cislo4 = 0;
          }
        }
      }
      updateLCD();
    }

    if ((millis() - lastDebounceTime5) > debounceInterval) {
      if (reading5 != buttonState5) {
        lcd.setCursor(16, 1);
        lcd.print(cislo1);
        lcd.print(cislo2);
        lcd.print(cislo3);
        lcd.print(cislo4);
        buttonState5 = reading5;
        if (buttonState5 == HIGH) {
          pokus++;
          updateLCD();
          over_cisla();
          #ifdef NULUJ
          cislo1 = 0;
          cislo2 = 0;
          cislo3 = 0;
          cislo4 = 0;
          #endif
        }
      }
    }
    lastButtonState1 = reading1;
    lastButtonState2 = reading2;
    lastButtonState3 = reading3;
    lastButtonState4 = reading4;
    lastButtonState5 = reading5;
  }
}

void updateLCD() {
  lcd.setCursor(16, 0);
  lcd.print(cislo1);
  lcd.print(cislo2);
  lcd.print(cislo3);
  lcd.print(cislo4);
  lcd.setCursor(0, 1);
  lcd.print("POKUS: ");
  lcd.print(pokus);
}

void generuj_cisla() {
  cielovecislo1 = random(0, 9);
  cielovecislo2 = random(0, 9);
  while (cielovecislo2 == cielovecislo1) {
    cielovecislo2 = random(0, 9);
  }
  cielovecislo3 = random(0, 9);
  while ((cielovecislo3 == cielovecislo1) || (cielovecislo3 == cielovecislo2)) {
    cielovecislo3 = random(0, 9);
  }
  cielovecislo4 = random(0, 9);
  while ((cielovecislo4 == cielovecislo1) || (cielovecislo4 == cielovecislo2) || (cielovecislo4 == cielovecislo3)) {
    cielovecislo4 = random(0, 9);
  }
}

void over_cisla() {
  if (cislo1 == cielovecislo1) {
    lcd.setCursor(10, 1);
    lcd.print("="); //UHADNUTE CISLO VRATANE POZICIE
  } else if ((cislo1 == cielovecislo2) || (cislo1 == cielovecislo3) || (cislo1 == cielovecislo4)) {
    lcd.setCursor(10, 1);
    lcd.print("C"); //UHADNUTE CISLO BEZ POZICIE
  } else {
    lcd.setCursor(10, 1);
    lcd.print("-"); //NEUHADNUTE CISLO, ANI POZICIA
  }

  if (cislo2 == cielovecislo2) {
    lcd.setCursor(11, 1);
    lcd.print("="); //UHADNUTE CISLO VRATANE POZICIE
  } else if ((cislo2 == cielovecislo1) || (cislo2 == cielovecislo3) || (cislo2 == cielovecislo4)) {
    lcd.setCursor(11, 1);
    lcd.print("C"); //UHADNUTE CISLO BEZ POZICIE
  } else {
    lcd.setCursor(11, 1);
    lcd.print("-"); //NEUHADNUTE CISLO, ANI POZICIA
  }

  if (cislo3 == cielovecislo3) {
    lcd.setCursor(12, 1);
    lcd.print("="); //UHADNUTE CISLO VRATANE POZICIE
  } else if ((cislo3 == cielovecislo1) || (cislo3 == cielovecislo2) || (cislo3 == cielovecislo4)) {
    lcd.setCursor(12, 1);
    lcd.print("C"); //UHADNUTE CISLO BEZ POZICIE
  } else {
    lcd.setCursor(12, 1);
    lcd.print("-"); //NEUHADNUTE CISLO, ANI POZICIA
  }

  if (cislo4 == cielovecislo4) {
    lcd.setCursor(13, 1);
    lcd.print("="); //UHADNUTE CISLO VRATANE POZICIE
  } else if ((cislo4 == cielovecislo1) || (cislo4 == cielovecislo2) || (cislo4 == cielovecislo3)) {
    lcd.setCursor(13, 1);
    lcd.print("C"); //UHADNUTE CISLO BEZ POZICIE
  } else {
    lcd.setCursor(13, 1);
    lcd.print("-"); //NEUHADNUTE CISLO, ANI POZICIA
  }

  if ((cislo1 == cielovecislo1) && (cislo2 == cielovecislo2) && (cislo3 == cielovecislo3) && (cislo4 == cielovecislo4)) {
    lcd.setCursor(0, 2);
    lcd.print("VYHRALI STE!");
    lcd.setCursor(0, 3);
    lcd.print("KONIEC HRY          ");
    while (1);
  }
}