GlowstoneMC/Glowstone — pull request #272 by nevercast (2014-09-13 06:14:19+00:00)
Title: Sided block opacity.

Implement isBlockSolid and isBlockSideSolid, as well as isSolid and isSideSolid on BlockType.
To be used with Torches, Levers and other blocks that are side surface dependent. Will add more code regarding this functionality later when I need it.

Josh Lloyd