Maintain an animation collection for each span.
Maintain an animation collection for each span.

Dador/libjass,Arnavion/libjass,joshuabrown-ellation/libjass,Dador/libjass,joshuabrown-ellation/libjass,Arnavion/libjass,joshuabrown-ellation/libjass,Dador/libjass,Arnavion/libjass