🐍 Snake Game in C++ with OpenGL

This is a feature-rich Snake game built using C++ and OpenGL (GLUT). The game includes colorful levels, food and rock spawning, a leaderboard system, and pop-up messages using GLUT windows.

🎮 Features

• Classic Snake game mechanics with wrap-around screen edges
• Dynamic rock spawning as obstacles with increasing frequency over time
• Color-coded levels (10 unique colors) - eat your tail to advance levels
• Star system - complete 10 levels to earn a star and restart level progression
• Real-time score and time tracking with persistent high scores
• Leaderboard system that saves top 10 players to a leader.txt file
• Interactive snake facts displayed via pop-up windows between levels
• Pop-up game over messages and notifications
• Multithreading for timed events using std::thread
• Mouse-driven menu system for game navigation

🛠️ Requirements

• Windows OS (uses <windows.h> and Sleep())
• OpenGL Utility Toolkit (GLUT)
• C++11 or higher
• Compatible compiler (e.g., MinGW, MSVC)

🧱 Code Structure

Classes

• snake - Represents a segment of the snake with movement methods (up, down, left, right)
• obj - Represents the food object with position coordinates
• rock - Represents obstacle objects with position coordinates
• pp - Player profile class for leaderboard with star, level, points, time, and name fields

Key Variables

• a - Main stack structure containing the snake and food
• rocks[] - Array of rock obstacles
• leader[], lnames[], lstar[], llevels[], lpoints[], ltime[] - Arrays used for leaderboard management
• levels[][] - RGB color values for different levels
• hints[] - Array of snake facts displayed between levels
• maxsize - Maximum snake length (currently set to 6)

Threads

• autowalk - Handles automatic snake movement
• moving - Manages food movement mechanics
• timeee - Updates game timer

🗂️ Files

• snake_v3.cpp - Main game logic and rendering
• leader.txt - Stores the leaderboard data (auto-generated)

📦 How to Build and Run

Using g++ (MinGW on Windows)

g++ snake_v3.cpp -o SnakeGame -lglut32cu -lopengl32 -lglu32 -std=c++11
./SnakeGame

Note: Ensure that you have installed GLUT and set up your OpenGL environment properly.

Or use any IDE (e.g., Code::Blocks, Visual Studio) and link OpenGL & GLUT libraries.

📝 Leaderboard Format

Each line in leader.txt is structured as:

<username> <stars> <level> <points> <time>

The leaderboard is automatically sorted by:

1. Stars (descending)
2. Level (descending)
3. Points (descending)
4. Time (ascending - faster is better)

🎯 Game Controls

• Arrow Keys: Control snake movement (Up, Down, Left, Right)
• Mouse: Navigate main menu and interact with buttons
• Text Input: Enter username before starting the game

🎲 Game Mechanics

• Snake Growth: Eating food increases snake length and score
• Level Progression: Complete levels by eating your own tail (when length > 0)
• Star System: Every 10 levels completed earns you a star
• Obstacles: Rocks spawn over time - avoid them or game ends
• Wrapping: Snake wraps around screen edges for continuous play
• Speed: Game speed increases as you progress

💡 Trivia & Hints

Between levels, players receive interesting snake facts via pop-up windows:

• "Not all snakes lay eggs."
• "Snakes don't have eyelids"
• "Snakes smell with their tongues."
• "Snakes are shy, secretive animals"
• "Snakes are dichromatic"
• "Snakes are active at night"
• "Snakes are deaf to all airborne sounds"

🧪 Development Notes

• Rocks spawn with increasing frequency as time progresses (controlled by rockadder variable)
• Food spawning rate increases based on points scored (foodjump mechanism)
• Snake wraps around screen edges seamlessly
• Pop-up windows are separate GLUT windows triggered on game events
• Game uses a stack-based structure for snake body management
• Leaderboard sorting prioritizes stars > level > points > time (ascending)
• Color levels cycle through 10 predefined RGB values

🧑‍💻 Author Note

This project was made when I was still at the beginning of my programming journey.
I didn’t use .h header files or split classes into multiple files simply due to lack of knowledge at the time.
I do plan to clean and improve the structure—maybe in 5 to 10 years if I find time 😛.

📌 Future Improvements (Ideas)

• Add support for music and sound effects
• Cross-platform compatibility (remove windows.h) no worries will I make sure it unplayable on mac 😛
• GUI menus for game settings
• Multiplayer mode or AI snakes

📄 License

This project is for educational and recreational use.

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Enjoy the game and keep improving your C++/OpenGL skills! 🐍