int random_number(int x, int y) /* Call the function with two = arguments: */ { /* x=3D lowest number to = generate y=3D highest*/ struct time { /* The standard DJGPP time = struct */ unsigned char ti_min; unsigned char ti_hour; unsigned char ti_hund; unsigned char ti_sec; }t; =20 int i; gettime(&t); /* Fill up the time struct */ for (i=3D0; i < t.ti_hund / 4; i++) /* Devide the current time = (milliseconds) */ (rand() % 0); /* by 4 and create useless = random numbers */ =20 if (y > x) =20 return ((rand() % (y - x)) + x); /* Return a random number = between y and x */ else return ((rand() % (x - y)) + y); /* or x and y, as the case may = be */ } ------=_NextPart_000_000A_01BE7D06.33E56520 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

I noticed that the functions that = come with=20 DJGPP for generating random numbers always spit out the random numbers = in the=20 same sequence each time the program is run. This bothered me = becase for=20 games I wrote the random maps, powerups, ect. usually always came up the = same=20 way. I wrote some code to fix this, and I will post it = here. =20

Generally how it works is it gets = the=20 current time in milliseconds from the system timer and devides that = number by=20 4, then executes that many random number generations before = assigning the=20 real one to the variable in the argument. Its really speedy on my = P200MMX=20 but I imagine that it may be a real calculation hog. Does anyone = have any=20 suggestions on my code, or possibly an eayser way to do = this?

#include <stdlib.h>
#include = <time.h>

int random_number(int x, int=20 y) /* Call the function = with two=20 arguments: =20 */
{ = &= nbsp; &n= bsp; =20 /* x=3D lowest number to generate y=3D highest*/

   struct time=20 {            =            =20 /* The standard DJGPP time struct */
     = unsigned char=20 ti_min;
     unsigned char=20 ti_hour;
     unsigned char=20 ti_hund;
     unsigned char = ti_sec;
  =20 }t;

   int i;

=20 gettime(&t); &nb= sp; &nbs= p; =20 /* Fill up the time struct */

   for (i=3D0; i < = t.ti_hund / 4;=20 i++)    /* Devide the current time (milliseconds)=20 */
      (rand() %=20 0);           &nbs= p;        =20 /* by 4 and create useless random numbers=20 */
           &= nbsp;           &n= bsp;           &nb= sp;  =20
   if (y >=20 x)            = ;            =   =20
     return ((rand() % (y - x)) + = x);   /*=20 Return a random number between y and x */
  =20 else
     return ((rand() % (x - y)) + = y);   /*=20 or x and y, as the case may be */
}

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