cython-extensions-sc2 0.7.1

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cython-extensions-sc2

API Documentation - for a full list of included functions.

cython-extensions-sc2 is a library designed for the python-sc2 API. Its purpose is to offer optimized Cython alternatives for commonly used functions, along with additional useful custom functions.

Note: This library is included for ares-sc2 users by default, no further setup is required.

This library also supports python-sc2 and sharpy-sc2 bots, see Getting Started below.

Example speedups, results may vary depending on machine and exact scenario. This is by no means a list of all functionality offered.

python-sc2 function	cython speedup
units.closest_to	6.85 - 13x speedup depending on scenario
distance_to	3 to 7x speedup depending on scenario
position.center	2x speedup
already_pending for units	6.62x speedup
units.in_attack_range	2.05x speedup
units.sorted_by_distance_to	8.62x speedup
unit.is_facing	9.1x speedup
Point2.towards	14.29x speedup
has_creep	4 - 5x speedup
in_pathing_grid	4 - 5x speedup

Tip: use cy_distance_to_squared where possible for extra 1.3x speedup.

Getting started

To quickly get up and running locally (for python versions 3.10, 3.11, 3.12, 3.13), install cython-extensions-sc2 with:

pip install cython-extensions-sc2

Shipping to ladder

When shipping to ladder, grab ubuntu-latest_python3.12.zip from releases in this repo and extract cython_extensions directory within the zip to the root of your bot's directory, like so:

MyBot
└───cython_extensions
│   └───cython-extensions library files
└───your bot files and directories

Alternative local setup

If you already have a python-sc2, or sharpy-sc2 development environment setup, then cython-extensions should work out the box with your bot without the need to install extra requirements. Simply check out the releases on this repo and download the correct zip for your system.

For example a Windows user should download windows-latest_python3.1.zip.

Inside this zip you will find a cython_extensions directory, this should be placed in your bot's root directory like so:

MyBot
└───cython_extensions
│   └───cython-extensions library files
└───your bot files and directories

Start using cython-extensions-sc2

For ease of use all cython functions are importable via the main module, for example:

from cython_extensions import cy_distance_to, cy_attack_ready, cy_closest_to

note: in this project all library functions have a cy_ prefix to prevent confusion with python alternatives.

Contributor / Cloning the project

Install poetry if you do not already have it installed.

Then to setup a full development environment run: poetry install --with dev,test,docs,semver

This will set up a new environment, install all required dependencies and compile the cython code for your system.

If you modify the cython code, run poetry build to compile it.

Jupyter Notebooks

Run poetry run jupyter notebook to open jupyter notebook in the environment. See the notebooks directory for examples. Use template_notebook.ipynb as a starting point for your own notebooks.

Run Test Bot

Edit the map in bot_test.py and run with: poetry run python tests/bot_test.py

Contributing

Contributors are very welcome! There are many missing alternative python-sc2 functions, and if you're into optimization, the existing functions could likely be improved.

Please use conventional commits if you choose to contribute, it helps the automatic releases detect a new version and generates an accurate changelog.

Example git messages:

feat: add new cython function

fix: fixed buggy function

test: add new test

ci: update github workflow

docs: add new docs

chore: add dependency