A very fast and scalable physics engine, based on Box2D.
This project is currently in alpha, work in progress
Box2D is a 2D physics engine for games, developed and maintained by Erin Catto.
Box2D-optimized is a Box2D fork that aims to offer improved perfromance and scalability, while maintining a similar API and feature set. This library merges commits from upstream Box2D regularly in order to be up to date.
A collection of various benchmarks and graphs showcasing the performance improvement can be found in the box2d-benchmarks repository.
There are a lot of under-the-hood changes in order to achieve this stated speedup, which are described in my dissertation for optimizing Box2D: optimizing-box2d
Feel free to open issues for bugs and discussions or make pull requests.
Box2D is developed by Erin Catto, and uses the MIT license.
Box2D-optimized is developed by Manolis Tsamis and also uses the MIT license.
The rest of the Box2D README is copied here for convinience
PATH
build.bat
from the command promptbuild.sh
from a bash shellYou can download and install Box2D using the vcpkg dependency manager:
The Box2D port in vcpkg is kept up to date by Microsoft team members and community contributors. If the version is out of date, please create an issue or pull request on the vcpkg repository.
Note: vcpkg support is not provided by the Box2D project
You can use the CMake install feature to deploy the library to a central location that can be accessed using:
find_package(box2d REQUIRED)
target_link_libraries(mytarget PRIVATE box2d)
You can build and install the library and docs using this command sequence (requires Doxygen):
mkdir build
cd build
cmake -DBOX2D_BUILD_DOCS=ON ..
cmake --build .
cmake --build . --target INSTALL
On Windows this tries to install in Program Files
and thus requires admin privileges. Alternatively you can target another directory using something like this:
mkdir build
cd build
cmake -DBOX2D_BUILD_DOCS=ON -DCMAKE_INSTALL_PREFIX="C:/packages" ..
cmake --build .
cmake --build . --target INSTALL
Support development of Box2D through Github Sponsors