fixtorad_r

Section: Allegro manual (3)
Updated: version 4.2.2
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NAME

fixtorad_r - Constant to convert angles in fixed point format to radians. Allegro game programming library.  

SYNOPSIS

#include <allegro.h>

extern const fixed fixtorad_r;  

DESCRIPTION

This constant gives a ratio which can be used to convert a fixed point number in binary angle format to a fixed point number in radians. Example: 

   fixed rad_angle, binary_angle;
   /* Set the binary angle to 90 degrees. */
   binary_angle = 64;
   /* Now convert to radians (about 1.57). */
   rad_angle = fixmul(binary_angle, fixtorad_r);

 

SEE ALSO

fixmul(3), radtofix_r(3)