al_fixatan3
Allegro 5 api
Usage
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#include <allegro5/allegro.h> al_fixed al_fixatan(al_fixed x)
Overview
This function finds the inverse tangent of a value using a lookup table. The input must be a fixed point value. The inverse tangent is the value whose tangent is x.
Example:
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al_fixed result; /* Sets result to binary angle 13. */ result = al_fixatan(al_ftofix(0.326));
Return value
Returns the inverse tangent of a fixed point value, measured as a fixed point binary format angle.