Found error calculating offset angle that was breaking the arcsin function. Added cumulative stats.
Improved randomization of dodging movment.  Now only switches direction 70% of the time when enemy 'fires'.
Merge branch 'duel'

* duel:
  Improved randomization of dodging movment.  Now only switches direction 70% of the time when enemy 'fires'.
  Found error calculating offset angle that was breaking the arcsin function. Added cumulative stats.