BulletML
BulletML is a markup language for bullets. It allows you to describe complex bullet patterns, as seen in your favorite shmups and bullet hell games, with ease.
libBulletML is the library that allows you to process BulletML in C++.
I’ve created Xcode 3.0 and MSVC Express 2005 projects and prebuilt libraries for libBulletML and am posting them here for everyones continued enjoyment. If you are curious to see BulletML in action I recommend you check out the java applet demo, over on the ABA Games website.