52 lines
2.3 KiB
Markdown
52 lines
2.3 KiB
Markdown
# Notes while working on Kivy
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## Setup of Kivy
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- Went with pip install setup on Ubuntu 15.10 x86-64:
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1. Fork and clone the Kivy repo:
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1. Create a virtualenv
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1. Installed the following dependencies:
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```sudo apt-get install libjpeg-dev libgl1-mesa-dev libgles2-mesa-dev libsdl2-dev libsdl2-image-dev \
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libsdl2-mixer-dev libsdl2-ttf-dev zlib1g-dev```
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1. `pip install -e .`
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1. `make test` to verify working setup.
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## Linux Device Issues:
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- Running into device permission errors, mostly like caused by the touchscreen or touchpad:
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```
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[INFO ] [GL ] NPOT texture support is available
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Exception in thread Thread-1:
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Traceback (most recent call last):
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File "/usr/lib/python2.7/threading.py", line 810, in __bootstrap_inner
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self.run()
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File "/usr/lib/python2.7/threading.py", line 763, in run
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self.__target(*self.__args, **self.__kwargs)
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File "/home/dorian.pula/pycon_sprints/kivy/kivy/input/providers/mtdev.py", line 219, in _thread_run
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_device = Device(_fn)
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File "/home/dorian.pula/pycon_sprints/kivy/kivy/lib/mtdev.py", line 143, in __init__
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self._fd = os.open(filename, os.O_NONBLOCK | os.O_RDONLY)
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OSError: [Errno 13] Permission denied: '/dev/input/event7'
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[INFO ] [Base ] Leaving application in progress...
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```
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- Adding user to `input` device did not work.
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- This *may* work: https://puredata.info/docs/faq/how-can-i-set-permissions-so-hid-can-read-devices-in-gnu-linux
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## Tutorial Improvements:
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- [Adding Ball Animation](https://kivy.org/docs/tutorials/pong.html#adding-ball-animation)
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- Add in placeholder variable to describe the random direction of the ball.
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## Kivy File
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- Properties need to be declared at the top of a section in Kv.
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- Nothing in the Kv language specification on the order of properties / sections.
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## Kivy language
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- [Documentation for Kv language](https://kivy.org/docs/guide/lang.html)
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- Documentation on language does not have an explicit section on adding comments.
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- Nice to have tips for syntax-highlighting inside Kv files for PyCharm
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- Thanks @kjell for pointing out [PyCharm settings](https://github.com/kivy/kivy/wiki/Setting-Up-Kivy-with-various-popular-IDE's#kv-lang-auto-completion-and-highlighting)
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- The resulting game is quite sluggish... maybe framerate issues?
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