NAME¶

fixsin - Fixed point sine of binary angles. Allegro game programming library.

SYNOPSIS¶

#include <allegro.h>

fixed fixsin(fixed x);

DESCRIPTION¶

This function finds the sine of a value using a lookup table. The input value must be a fixed point binary angle. Example:

   fixed angle;


   int result;


   


   /* Set the binary angle to 90 degrees. */


   angle = itofix(64);


   /* The sine of 90 degrees is one. */


   result = fixtoi(fixsin(angle));


   ASSERT(result == 1);

RETURN VALUE¶

Returns the sine of a fixed point binary format angle. The return value will be in radians.

SEE ALSO¶

, ex12bit(3), ex3buf(3), exblend(3), excustom(3), exspline(3), exupdate(3)