🕹️ Node Runner

Node Runner is a survival maze game built from scratch using C++ and OpenGL (GLUT). The project demonstrates core Computer Graphics concepts including rasterization, 2D transformations, and collision detection without the use of a game engine.

🚀 Features

• Dynamic Player Movement: Smooth 2D translation controlled by user input.
• Smart Enemy AI: "Devils" that use greedy pathfinding logic to actively chase the player.
• Trap System: Static "Bomb" tiles hidden in the grid that trigger an instant game over.
• State Management: Finite State Machine handling (Playing, Win, Game Over).
• Grid-Based Rendering: Utilizing Raster Scan Conversion principles to render the map from a 2D array.

📚 Syllabus Mapping (CSC209)

This project was designed to meet the requirements of the B.Sc.CSIT 3rd Semester Computer Graphics syllabus:

• Unit 2 (Scan Conversion): The map is rendered by rasterizing geometric primitives (GL_QUADS) based on a grid array.
• Unit 3 (2D Transformations): Player and Enemy movements are implemented via 2D Translation logic ($x' = x + t_x$).
• Unit 3 (Clipping/Windowing): Collision detection acts as a logical "clipping" method, preventing entities from entering Wall nodes.
• Unit 10 (OpenGL & Animation): Utilizes glutTimerFunc for real-time enemy animation loops independent of the rendering frame rate.

🛠️ Tech Stack

• Language: C++
• Graphics Library: OpenGL / FreeGLUT
• IDE: Dev-C++ (TDM-GCC 64-bit)

⚙️ How to Compile (Dev-C++)

This project requires Dev-C++ with the GLUT/FreeGLUT packages installed. Tutorial on how to install Dev-C++ 5.11 and GLUT/FreeGLUT : https://youtu.be/f6ijyf6WJ4s?si=4xq4AC8YNYPQbtgH

1. Clone the Repo:

   git clone https://github.com/YOUR_USERNAME/Node-Runner.git

2. Open Node Runner.dev (The project file) in Dev-C++.
3. Linker Configuration: Go to Project -> Project Options -> Parameters -> Linker and paste:

   -lfreeglut -lglu32 -lopengl32 -lwinmm -lgdi32
   

4. DLL Setup: Ensure freeglut.dll is present in the same folder as the compiled .exe.
5. Compile & Run: Press F11.

🎮 Controls

• W: Move Up
• A: Move Left
• S: Move Down
• D: Move Right
• Goal: Reach the Green Tile.
• Avoid: Red Squares (Enemies) and Dark Red Tiles (Bombs).

🧩 Code Structure

• main.cpp: Contains the game loop, rendering logic, and input handling.
  • init(): Sets up the OpenGL environment and Orthographic projection.
  • display(): Renders the grid, player, and enemies based on gameState.
  • moveEnemies(): The AI logic calculation (Timer Callback).
  • keyboard(): Handles player input and collision checks.

📜 License

This project is open-source and created for educational purposes.