danmacnaughtan / pyxel-raycast

Raycasting with the Pyxel retro game engine

Pyxel Raycast

A basic raycast example using the Pyxel retro game engine. The project started as an experiment porting the OneLoneCoder CommandLineFPS (see video tutorial here) to Python and Pyxel, but went a bit farther with some dithering and camera control (including "vertical" looking).

A resolution of 240x136 and framerate of a whopping 30fps was achieved using two techniques:

1. Interleave rendering (alternate drawing even and odd columns)
2. Using one of Pyxel's image banks as a display buffer so the scene can be rendered with a single draw command

Some additional tips, specifically "vertical" look, can be found in this article.

Requirements

• Python 3.7+
• See requirements.txt

Controls

Key	Description
1	Reduce FOV
2	Increase FOV
3	Reset FOV
4	Toggle interleave rendering on/off (default on)
5	Increase visible distance
6	Reduce visible distance
7	Reset visible distance
8	Toggle wall boundaries on/off (default on)
W	Move forward
A	Turn left
S	Move backward
D	Turn right
Z	Strafe left
C	Strafe right
Q	Look up
E	Look down
X	Center look
SHIFT	Hold to run

pyxel-raycast's Issues

Running on latest pyxel release

I'm trying to run your script on latest pyxel version (1.4.3) and getting following error:

  File "main.py", line 372, in window
    return pyxel._app._window
AttributeError: 'Module' object has no attribute '_app'

Is there any chance to make it compatible with latest pyxel?

AttributeError: function 'SDL_SetRelativeMouseMode' not found

Error:

Traceback (most recent call last):
  File "D:/PROGRAMMING/temp/pyxel-raycast-master/main.py", line 52, in <module>
    _setup_api("SDL_SetRelativeMouseMode", c_int32, [c_int32])
  File "D:/PROGRAMMING/temp/pyxel-raycast-master/main.py", line 47, in _setup_api
    api = globals()[name] = getattr(_lib, name)
  File "C:\Program Files\Python38\lib\ctypes\__init__.py", line 386, in __getattr__
    func = self.__getitem__(name)
  File "C:\Program Files\Python38\lib\ctypes\__init__.py", line 391, in __getitem__
    func = self._FuncPtr((name_or_ordinal, self))
AttributeError: function 'SDL_SetRelativeMouseMode' not found

Steps to reproduce:

Run main.py

Environment:

Python: 3.8
Pyxel: 1.4.3
OS: Win 10

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