simple raycasting demo

---

• Description

  • a simple raycasting demo
  • made with Pygame
  • what you can learn (although there are no comments)
    • DDA algorithm
    • texture mapping
    • a poorly written GUI class
  • running on replit.com: https://replit.com/@ZhengIsHere/simple-raycasting-demo
  • screenshot:
    • 

---

• How To Play

  • make sure that you already downloaded PIL and Pygame
  • run main.py
  • W, A, S, D to move
  • arrow keys to rotate
  • check the 'wall texture' option to turn on the texture
  • walk around and have fun

---

• Notes

  • The left panel is a 2d map, and the right panel is settings
  • To increase fps, uncheck the ‘show settings’ option
    • lazy to write a better GUI
  • If an error occurs, please rerun main.py
  • Running the game for the first time may take some time to load