fixtorad_r (3) - Linux Manuals

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

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)

Pages related to fixtorad_r

  • fixtof (3) - Converts a fixed point to floating point. Allegro game programming library.
  • fixtoi (3) - Converts a fixed point to integer with rounding. Allegro game programming library.
  • fixtan (3) - Fixed point tangent of binary angles. Allegro game programming library.
  • fix_filename_case (3) - Converts a filename to a standardised case. Allegro game programming library.
  • fix_filename_slashes (3) - Converts all the directory separators to a standard character. Allegro game programming library.
  • fixacos (3) - Fixed point inverse cosine lookup table. Allegro game programming library.
  • fixadd (3) - Safe function to add fixed point numbers clamping overflow. Allegro game programming library.