Since I'm not specifying the api when creating my context, mesa is giving
me GL2. This is fair enough, but in GL2, vertex attribute 0 is the vertex
position. This too, is fair enough. The problem is, mesa is assigning 0 to
my vcolor attribute and thus I can't set it. The work around is simply to
swap the declaration order of vcolor and vertex (this really shouldn't work
eiter, I suspect).
textbox, crosshair, tileclear, fill and fadescreen are the remaining
functions.
There's a problem with 2d icons being drawn over the text (instead of
under), but I'll leave that for later.
