table of contents
fixtorad_r(3alleg4) | Allegro manual | fixtorad_r(3alleg4) |
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(3alleg4), radtofix_r(3alleg4)
version 4.4.3 | Allegro |