Rotate targetting reticule to mob. Add pivot point

Notion of pivot point now for rotating, i.e. the anchor point at which
rotations are applied. Rotating the reticule is done by using inverse
trigonometry, namely atan2f.
This commit is contained in:
2016-07-23 21:26:15 +10:00
parent 358f850a2c
commit a43102ee26
6 changed files with 95 additions and 63 deletions
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