grafx - Extensible Java Graphics Package Code

Uh oh. We have a problem, Houston. BlockMirrorImageCheck has discovered an
anomaly.

In BlockGenerator, adding getMirrorBlockZ(). Untested.

In BlockGenerator, adding equalsModuloOrientation(). Untested.

Using what seems to be the correct curve for UniformScale3D, during inversion.

Fixing the sqrt() of negative number issue. D'oh! Lol. All of this is so
related.

Backing out the NaN handling in line clipping as promised in previous commit.

Quickie fix for NaN handling in line clipping strategy. This fix isn't
satisfactory without more comprehensive tests for points, lines, and polygons.
Committing this and will then immediately back out, I may resume on proper NaN
handling at some later point in time.

Upping the millisFailBlkMvTime to 2/3 of regular move time; was at 1/2. This
would mean that the movement reaches an apex of 2/(3*2) which is 1/3. Before
it reached an apex of 0.25.

Trying to use sqrt() and sin() to make the inversion curve better. I may have
discovered a rendering bug, it causes some sort of exception. Saving demo as
'data/drawing-bug.blo' which exposes the drawing bug.

Starting to improve the inversion animation. Still missing the trig funcs.
BTW SimpleGameLogic wasn't broken after all. My prev comment in SVN log was
incorrect.