Constant to convert radians to fixed point angles. allegro game programming library.
#include <allegro.h>
extern const fixed radtofix_r;
This constant gives a ratio which can be used to convert a fixed point number in radians to a fixed point number in binary angle format. Example:
fixed rad_angle, binary_angle; ... binary_angle = fixmul(rad_angle, radtofix_r);
fixmul(3alleg4), fixtorad_r(3alleg4)