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/* Goom Project
* Copyright (C) <2003> iOS-Software
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "goom_tools.h"
#include <stdlib.h>
GoomRandom *
goom_random_init (int i)
{
GoomRandom *grandom = (GoomRandom *) malloc (sizeof (GoomRandom));
srand (i);
grandom->pos = 1;
goom_random_update_array (grandom, GOOM_NB_RAND);
return grandom;
}
void
goom_random_free (GoomRandom * grandom)
{
free (grandom);
}
void
goom_random_update_array (GoomRandom * grandom, int numberOfValuesToChange)
{
while (numberOfValuesToChange > 0) {
#if RAND_MAX < 0x10000
grandom->array[grandom->pos++] = ((rand () << 16) + rand ()) / 127;
#else
grandom->array[grandom->pos++] = rand () / 127;
#endif
numberOfValuesToChange--;
}
}
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