implicit operator

Valve Software's Source Engine uses a level editor called Hammer. The files produced by Hammer are in the Valve Map Format (VMF), which are simply text files that define the structure of a map. This file gets passed to a BSP (Binary Space Partitioning) compiler that builds the final product.

A little side project of mine called for a library that could parse VMF files and read the interactive parts of a Source Engine map. So, I built one. The result is the VMF Utility Library. It includes a complete parser, writer, object graph, and special classes for common VMF data types (such as color and vertex). The library is open source and includes documentation, along with a Getting Started tutorial.

I haven't put this one up on CodePlex yet, but you can download it directly (ZIP, 200kb).