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al_fixtorad_r(3alleg5) Allegro reference manual() al_fixtorad_r(3alleg5) Allegro reference manual()

NAME

al_fixtorad_r - Allegro 5 API

SYNOPSIS

#include <allegro5/allegro.h>


const al_fixed al_fixtorad_r = (al_fixed)1608;

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: 
    al_fixed rad_angle, binary_angle;


    /* Set the binary angle to 90 degrees. */
    binary_angle = 64;


    /* Now convert to radians (about 1.57). */
    rad_angle = al_fixmul(binary_angle, al_fixtorad_r);

SEE ALSO

al_fixmul(3alleg5), al_radtofix_r(3alleg5).