bulletFrameCycle : boolean
If you've added a set of frames via Weapon.setBulletFrames then you can optionallychose for each Bullet fired to use the next frame in the set. The frame index is thenadvanced one frame until it reaches the end of the set, then it starts from the startagain. Cycling frames like this allows you to create varied bullet effects viasprite sheets.
Source code: plugins/weapon/WeaponPlugin.js (Line 129)