Real games using ursina

[rbignon]

Hello,

I want to write a game using ursina. However, the only source code I found on github are little games or examples, but not real games.

There are two questions here:

• do you know a repository where I can read source code of an advanced game?
• for me, this is a problem that update and input functions have to be global, as I want to write my code using classes. I read main.py and it seems there is no alternative. Maybe I should override the Ursina class instead? What is the recommandation when you want to write a game application which is not a single file script?

Thank you.

[pokepetter]

Global update and input is not necessary. It was intended as a convenience feature when writing small single file scripts. The best way is to make and Entity (inherit) and implement update and input for that. This makes it possible to enabled/disable the logic at will, and to decide which order things should run in if you have multiple entities.
See: https://www.ursinaengine.org/entity_basics.html#Update

You should not override Ursina. It's currently not even possible. It was easy to override existing functions this way, like input, which would break input should you forget to call the parent method.

[rbignon]

Thank you for your quick answer.

Ok got it, it makes sense. Do you know an example project which uses Entity's methods inheritance instead of global functions?

[a2cy]

I don't know if it helps but I've made this https://github.com/a2cy/CubePixel/tree/upstream

[rbignon]

Hello,

Thank you for this link. I tried to use it, but there is this crash:

$ python main.py
info: No primary monitor found, using first monitor instead
:prc(warning): Invalid integer value for ConfigVariable win-size: 1152.0
:prc(warning): Invalid integer value for ConfigVariable win-size: 2752.0
Known pipe types:
  glxGraphicsPipe
(4 aux display modules not yet loaded.)
set window position: Vec2(860, 18.5)
:pnmimage:png(warning): iCCP: known incorrect sRGB profile
package_folder: /home/rom1/tmp/CubePixel/venv/lib/python3.12/site-packages/ursina
asset_folder: .
Traceback (most recent call last):
  File "/home/rom1/tmp/CubePixel/CubePixel/main.py", line 105, in <module>
:thread(error): Exception occurred within Thread TaskManager_chunk_update_0
Traceback (most recent call last):
  File "/home/rom1/tmp/CubePixel/CubePixel/modules/chunk_handler.py", line 329, in _update
    main()
  File "/home/rom1/tmp/CubePixel/CubePixel/main.py", line 99, in main
    CubePixel(app=app)
  File "/home/rom1/tmp/CubePixel/venv/lib/python3.12/site-packages/ursina/ursinastuff.py", line 238, in __call__
    if not self.world_loaded:
           ^^^^^^^^^^^^^^^^^
    obj = type.__call__(cls, *args, **kwargs)
AttributeError: 'ChunkHandler' object has no attribute 'world_loaded'
:task(error): Exception occurred in PythonTask chunk_update
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/rom1/tmp/CubePixel/CubePixel/main.py", line 39, in __init__
    self.chunk_handler = ChunkHandler(self)
                         ^^^^^^^^^^^^^^^^^^
  File "/home/rom1/tmp/CubePixel/venv/lib/python3.12/site-packages/ursina/ursinastuff.py", line 238, in __call__
    obj = type.__call__(cls, *args, **kwargs)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/rom1/tmp/CubePixel/CubePixel/modules/chunk_handler.py", line 29, in __init__
    self.render_distance = self.game.settings["render_distance"]
    ^^^^^^^^^^^^^^^^^^^^
  File "/home/rom1/tmp/CubePixel/CubePixel/modules/chunk_handler.py", line 58, in render_distance
    if self.world_loaded:
       ^^^^^^^^^^^^^^^^^
AttributeError: 'ChunkHandler' object has no attribute 'world_loaded'

(I'm in a venv where I correctly installed requirements.txt and built ext, I don't know if this is a problem with the version of ursina or something)

[a2cy]

you used the wrong branch :) the main branch is currently broken

[rbignon]

Ah ok, my bad, thx :)