Cub3D

Cub3D is a 3D graphics project based on the Wolfenstein 3D game engine. It is part of the 42 school curriculum and focuses on implementing a simple raycasting engine using the MinilibX library.

Features

• Raycasting Engine for rendering a 3D world from a 2D map.
• Smooth Movement & Rotation allowing simultaneous movement and turning.
• Wall Collision Detection to prevent walking through obstacles.
• MiniLibX Graphics Library for rendering and event handling.

Installation

# Clone the repository
git clone https://github.com/yourusername/cub3d.git
cd cub3d

# Compile the project
make

# Run the game
./cub3D maps/sample_map.cub

Controls

• W / S : Move Forward / Backward
• A / D : Strafe Left / Right
• ← / → : Rotate Left / Right
• ESC : Quit the game

Understanding Raycasting

Raycasting is a rendering technique used in early 3D games to create a pseudo-3D effect. It works by sending out rays from the player's perspective, checking where they intersect with walls, and calculating the correct height to draw each wall slice.

Raycasting Steps:

1. Cast Rays: For each vertical screen column, cast a ray from the player’s position.
2. Detect Walls: Check where the ray collides with a wall in the 2D map.
3. Calculate Distance: Use the distance between the player and the wall to determine the height of the wall slice.
4. Render Scene: Draw vertical slices of walls based on calculated distances, creating a 3D illusion.

Short Video of The Game

second.webm