🧭 Java Raycaster Engine

A simple 3D raycasting engine written in Java, inspired by the rendering techniques used in early 90s games like Wolfenstein 3D and DOOM. This project renders a 3D environment using a raycasting algorithm.

---

🚀 Features

• Real-time first-person 3D view
• Keyboard controls using W, A, S, D
• Smooth movement and rotation
• Configurable map and camera
• Pure Java (no external libraries)

---

🎮 Controls

Key	Action
W	Move Forward
S	Move Backward
A	Rotate Left
D	Rotate Right

---

📁 Project Structure

RaycasterProject/
├── Game.java          # Main class which renders the game
├── Texture.java       # Main class for texturing
├── Camera.java        # Main class which handles camera movement
├── Screen.java        # Main class for handling screen display
└── assets             # Holds the textures

---

🛠️ How to Run

1. Clone or Download the repository.

2. Compile the Java files:

  javac Game.java

3. Run the main class:

java Game

4. Use your keyboard to explore.

---

📷 Screenshots

Here's a preview of how the map may look like:

---

🧠 How It Works

• Rays are cast from the camera’s point of view to detect wall collisions on a 2D map.
• For each vertical screen column, the distance to the nearest wall hit is calculated.
• This distance is then used to draw vertical slices representing wall height, simulating depth.
• Movement and rotation are handled by the Camera class, using WASD keys.

---

📚 References

Here are the references used for this project:

• Making a Basic 3D Engine - For the process with the codes
• Wikipedia – Ray casting - General overview of ray casting as a rendering technique.
• Java AWT KeyEvent Documentation - Official documentation for keyboard input handling in Java.
• Stack Overflow – Basic Java Game Loop - Useful discussion on how to structure a simple game loop in Java for real-time rendering.

---

👨‍💻 Developed by - @Arijit2175