ERROR: Could not build wheels for cynes, which is required to install pyproject.toml-based projects

[ManPython]

pip install cynes
Collecting cynes
  Downloading cynes-0.0.3.tar.gz (158 kB)
     ---------------------------------------- 158.2/158.2 kB 1.2 MB/s eta 0:00:00
  Installing build dependencies ... done
  Getting requirements to build wheel ... done
  Preparing metadata (pyproject.toml) ... done
Requirement already satisfied: numpy in e:\python311-venv\lib\site-packages (from cynes) (1.25.0)
Collecting pysdl2-dll (from cynes)
  Downloading pysdl2_dll-2.30.0-py2.py3-none-win_amd64.whl.metadata (4.0 kB)
Collecting pysdl2 (from cynes)
  Downloading PySDL2-0.9.16.tar.gz (773 kB)
     ---------------------------------------- 773.5/773.5 kB 4.5 MB/s eta 0:00:00
  Preparing metadata (setup.py) ... done
Downloading pysdl2_dll-2.30.0-py2.py3-none-win_amd64.whl (4.1 MB)
   ---------------------------------------- 4.1/4.1 MB 4.7 MB/s eta 0:00:00
Building wheels for collected packages: cynes, pysdl2
  Building wheel for cynes (pyproject.toml) ... error
  error: subprocess-exited-with-error

  × Building wheel for cynes (pyproject.toml) did not run successfully.
  │ exit code: 1
  ╰─> [15 lines of output]
      running bdist_wheel
      running build
      running build_py
      creating build
      creating build\lib.win-amd64-cpython-311
      creating build\lib.win-amd64-cpython-311\cynes
      copying cynes\emulator.py -> build\lib.win-amd64-cpython-311\cynes
      copying cynes\__init__.py -> build\lib.win-amd64-cpython-311\cynes
      running build_ext
      building 'cynes.emulator' extension
      creating build\temp.win-amd64-cpython-311
      creating build\temp.win-amd64-cpython-311\Release
      creating build\temp.win-amd64-cpython-311\Release\cynes
      cl.exe /c /nologo /O2 /W3 /GL /DNDEBUG /MD -Icynes -IC:\Users\ManPython\AppData\Local\Temp\pip-build-env-81gpb_12\overlay\Lib\site-packages\numpy\core\include -IE:\Python311-venv\include -IE:\Python311\include -IE:\Python311\Include /EHsc /Tpcynes/emulator.cpp /Fobuild\temp.win-amd64-cpython-311\Release\cynes/emulator.obj -std=c++11
      error: command 'cl.exe' failed: None
      [end of output]

  note: This error originates from a subprocess, and is likely not a problem with pip.
  ERROR: Failed building wheel for cynes
  Building wheel for pysdl2 (setup.py) ... done
  Created wheel for pysdl2: filename=PySDL2-0.9.16-py3-none-any.whl size=580378 sha256=3ae0697425158f4fa9ffca06ec4dbec986aeda951386be9bc7e73f2bf8277216
  Stored in directory: c:\users\ManPython\appdata\local\pip\cache\wheels\92\fa\85\909d0304f9a316386c7980e02b19925f55b980ff838fb6a2b5
Successfully built pysdl2
Failed to build cynes
ERROR: Could not build wheels for cynes, which is required to install pyproject.toml-based projects

[Youlixx]

This issue does not seem to be related to cynes, wrong repo?

[ManPython]

Yes, my mistake. Looks like many projects not working with python311 around building wheel

[Youlixx]

I just tried with a fresh install of python 3.11.8 and it worked fine, I don't think this issue is related to python itself. Looks like you don't have a C/C++ compiler installed on your system, which is necessary to build the Python wheel (this is probably why you're seeing an error message about cl.exe). On Windows, I believe you need to install Microsoft's C++ build tools to resolve this.

[Youlixx]

@ManPython I've updated the CI, pre-built wheels for python 3.11 (and 3.12) should be available via pip install cynes.

[ManPython]

Thx. Its working now (both x86, x64), but very fast.. it's normal case?
Exist some parameters to set as correct speed?

[Youlixx]

Yes, it was designed to run as fast as possible, the best you can do is to artificially pause the emulator between each frame, here is a simple example using python's sleep:

from time import sleep

...

while not nes.should_close():
    frame = nes.step()
    sleep(0.01)  # waits for 10ms

By adopting this straightforward method, you'll need to fine-tune the sleep duration based on the speed at which your computer executes an emulator step. Additionally, you could verify that precisely 16 milliseconds (so you'll get ~60FPS) have passed between two steps by comparing the timestamp between each step and modifying the sleep duration accordingly.

[ManPython]

I see. Thx! sleep(0.016) working ok.

[ManPython]

Once case around.. sound not working in default.. also need configure this? Or this is normal due even though it does not produce any sound?

[Youlixx]

Yes this is normal, I wanted to keep things simple and AFAIK outputting sound can be quite complex as it requires a separate audio thread and a good synchronization. I still emulate some part of the NES's audio chip as

• some game use the APU frame counter to do some mid-frame CPU/PPU synchronization.
• it contains a unit to perform direct memory access used by (almost) every games to copy the frame sprite data from the RAM to the OAM.

[ManPython]

But is possible to add/activate sound in some simple way?