Make the mesher ~.4ms faster by avoiding unnecessary bounds checks.
Make the mesher ~.4ms faster by avoiding unnecessary bounds checks.

crazy2be/buildblast,yeerkkiller1/buildblast,yeerkkiller1/buildblast,yeerkkiller1/buildblast,crazy2be/buildblast,crazy2be/buildblast,yeerkkiller1/buildblast,crazy2be/buildblast,yeerkkiller1/buildblast,crazy2be/buildblast