Awesome

Plinth

by Hapaxia

A fully-header-only/templated foundation library of many helpful classes and functions.
Includes an extension section of SFML-based classes and functions.

Requires a minimum of C++11. Note that some parts may required more modern versions.

For information, view the Wiki.

IMPORTANT
This library has been converted to a fully-header-only/templated library and is now available on the main branch.

MAIN BRANCH
Note also that the main branch was originally named master. To update your clone if you cloned before it was named main, run these commands from your clone:

git branch -m master main
git fetch origin
git branch -u origin/main main
git remote set-head origin -a