DarkstarProject/darkstar — pull request #280 by towbes (2014-06-02 03:08:05+00:00)
Title: Implement Thief Ambush Ability

Resubmitting as a pull request that will ONLY be Ambush this time. Implemented in both the ranged and melee accuracy checks. Ambush adds 3 accuracy for each point when the thief is behind the target. I used the same formula as was used for checking sneak attack.