C Projects

Number Guessing Game in C

Welcome to the Number Guessing Game — a simple and fun C program that helps you learn key programming concepts such as loops, conditionals, input/output, and random number generation.

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🎯 Learning Goals

By studying and running this program, you will learn:

• How to generate random numbers in C
• Using variables and constants
• Taking user input with scanf()
• Using loops (do...while) to repeat actions
• Applying conditional statements (if...else) for decision making
• Counting attempts and giving user feedback

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📁 File Included

• Number_Guessing_Game.c — The full source code for the game

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🧩 How the Code Works (Step-by-Step)

1. Include Libraries

#include <stdio.h>   // For input/output functions like printf and scanf
#include <stdlib.h>  // For random number functions rand() and srand()
#include <time.h>    // For getting the current time to seed the random generator

These libraries provide the necessary functions for input/output and random number generation.

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2. Variable Declarations

int secretNumber, guess, attempts = 0;
const int MIN = 1, MAX = 100;

• secretNumber: Holds the random number the user tries to guess
• guess: Stores the user's current guess
• attempts: Counts how many tries the user has made
• MIN and MAX: Constants defining the guessing range (1 to 100)

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3. Random Number Generation

srand(time(0));
secretNumber = (rand() % MAX) + MIN;

• srand(time(0)) seeds the random number generator using the current time, so the number changes each time you run the program
• rand() % MAX generates a number between 0 and 99; adding MIN shifts this range to 1–100

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4. User Instructions

printf("Welcome to the Number Guessing Game!\n");
printf("I'm thinking of a number between %d and %d.\n", MIN, MAX);

These lines greet the player and explain the rules.

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5. The Guessing Loop

do {
    printf("Enter your guess: ");
    scanf("%d", &guess);
    attempts++;
    
    if (guess > secretNumber) {
        printf("Too high! Try again.\n");
    } else if (guess < secretNumber) {
        printf("Too low! Try again.\n");
    } else {
        printf("Congratulations! You guessed the number in %d attempts!\n", attempts);
    }
} while (guess != secretNumber);

• The program keeps asking for guesses until the correct number is found
• After each guess, it tells the user if their guess was too high, too low, or correct
• The attempts counter increments each time the user guesses

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6. Program End

return 0;

This signals the program finished successfully.

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🧪 Try These Enhancements (Exercises)

• Limit the number of guesses to 7 — tell the user if they run out of attempts
• Add a feature to ask if the user wants to play again after guessing correctly
• Introduce difficulty levels that change the MAX number
• Keep track of and display the best (lowest) number of attempts across games

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🚀 How to Compile and Run

On macOS or Linux:

gcc Number_Guessing_Game.c -o guessing_game
./guessing_game

On Windows (with GCC):

gcc Number_Guessing_Game.c -o guessing_game.exe
guessing_game.exe

Certainly! Here's a detailed, beginner-friendly README.md for your Simple Dice Roller program, tailored for educational purposes:

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🎲 Simple Dice Roller in C

This is a basic C program that simulates rolling a six-sided dice. It generates random numbers to mimic dice rolls, displays the result with simple ASCII art, and lets the user roll again as many times as they want.

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🎯 Learning Objectives

By studying and running this program, you will learn:

• How to generate random numbers in C
• Using variables to store and manage data
• Handling user input with scanf()
• Using loops (do...while) to repeat actions until a condition is met
• Creating simple ASCII art to display output nicely
• Understanding the importance of seeding the random number generator

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📁 Files Included

• Dice_Roller_Educational.c — The source code for the dice roller program

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🧩 How the Code Works (Step-by-Step)

1. Include Required Libraries

#include <stdio.h>   // For input and output functions
#include <stdlib.h>  // For random number functions
#include <time.h>    // To seed the random number generator using the current time

These libraries provide functions to read/write data and generate random numbers.

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2. Variable Declarations

int diceValue;   // Stores the value of the dice roll (1 to 6)
char rollAgain;  // Stores user's decision to roll again ('y' or 'n')

Variables hold data used throughout the program.

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3. Seeding the Random Number Generator

srand(time(0));

• Seeds the random number generator using the current time,
• Ensures that the dice rolls are different each time the program runs.

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4. Main Loop - Rolling the Dice

do {
    diceValue = (rand() % 6) + 1;  // Generate a number between 1 and 6
    // Display dice using ASCII art
    // Show rolled number
    // Ask user if they want to roll again
} while (rollAgain == 'y' || rollAgain == 'Y');

• Generates a random dice roll
• Displays the dice visually with ASCII characters
• Takes input from the user to decide if they want to roll again
• Repeats the loop if user says 'y' or 'Y'

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5. Program End

printf("\nThanks for playing! 🎉\n");
return 0;

• Displays a friendly goodbye message
• Returns 0 to signal successful program completion

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🧪 Try These Exercises (Practice Ideas)

• 🎲 Modify the program to roll two dice and show their sum.
• 🛡 Add input validation to accept only 'y', 'Y', 'n', or 'N'.
• 🔟 Change the dice to have 10 sides (values 1 to 10).
• 📊 Count how many rolls were made and display the total at the end.
• 🎨 Improve the ASCII art to better represent each dice face.

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🚀 How to Compile and Run

On macOS or Linux:

gcc Dice_Roller_Educational.c -o dice_roller
./dice_roller

On Windows (with GCC):

gcc Dice_Roller_Educational.c -o dice_roller.exe
dice_roller.exe