5 Block Types with Rotations and Minor Outlining

I organized the code a lot, but I can't really show that as eye candy... I did however make a lot of eye candy changes. There are now 5 block types (as opposed to just the one block type, a cube, from before): cube (8 vertices), inverted corner (7 vertices), prism (6 vertices), square corner (5 vertices), and tetra (4 vertices). These are depicted in the screenshots below.

Due to the difficulty of seeing the triangular portions of these block types, I also decided to dual draw every cube, the second time in wireframe mode with a slight color highlight (slightly whiter color) and a varying alpha value. The goal with this color was to make it blend in with the cube color but be somewhat noticeable on triangular edges. Hopefully lighting will fix this problem altogether, but it still looks pretty good.

Fifteenth step complete:

Up next: converting the project to x64 (might as well since we're using DX10+...) and much needed lighting!