CEL (or Crystal Entity Layer) is a set of plugins and applications built on top of the Crystal Space SDK. CEL provides a set of commonly used abstractions to specifically help with writing games. CEL introduces the notion of an 'entity' which can be any kind of (visual or non-visual) object in a game. CEL also comes with a lot of useful plugins for 3rd/first person camera handling, physics, movement system, quest system, and so on. Written in C++, CEL can also be interacted with via Python or Xml. Using CELstart it is also not neccessary to use C++. This means that since the base code is C++, CEL is fast while being extremely easy to use from within Python and/or Xml.
