This is an ECS (Entity Component System) implementation written in C++ in almost one day.
Sent was only a small experiment on sparse sets and ECS implementations heavily inspired by this post from EnTT's creator and (probably) should not be used in real-world projects. But it is simple and small enough to be understood by enthusiasts without much effort, in a short time.
Along with the ECS itself (which is header-only), this repo contains a little benchmark tool which can be build and executed. Since it doesn't depend on any libraries except the C++ standard library, It can be built with most C++ toolchains out there.
On a Linux box (and generally any Unix-like box with g++) you can build it with
(this includes optimizations):
g++ main.cpp -o a.out -O3On Windows, you should be able to build it with MinGW or the Visual Studio compiler.
Just run the resulting executable (It will be a.out if you used the command above)
and give it the number of entities to be created for test on the standard input
(usually your terminal). On a Unix-like shell, you can also run:
echo N | ./a.outWhere N is the number of entities for the test.
Then, it will print the time spent on creating the entities and running some
near real-life queries on them. For more details, you can look inside main.cpp.
The "cover art" is created using Rnote and inspired by an image in Skypjack's blog post mentioned above and thus is distributed under CC BY-NC-SA 4.0.