Re: [AD] Optimized rotation routine

[Laurence Withers <lwithers@xxxxxxxxxx>]

In reply to Sven Sandberg <ssven.geo@xxxxxxxxxx>:
>Also, what is sensible to do when scale<0 in
>`rotate_scaled_sprite()' & co? Draw flipped or don't
>draw at all?

In math, a negative scale factor means that the object being enlarged is
rotated by pi around the origin of the enlargement before actually being
enlarged. So a negative scale is sensible.

If, however, Allegro flips the sprite rather than rotating it, then I
would stick with that behaviour.

Bye for now,
-- 
Laurence Withers, lwithers@xxxxxxxxxx
                http://www.lwithers.demon.co.uk/

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