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/*
* Copyright (c) 1997-1999 Mark Danks.
* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "GEM.LICENSE.TERMS" in this distribution.
*/
#include "m_pd.h"
#include <stdlib.h>
#ifndef MACOSX
#include <math.h>
#endif
#ifdef NT
int random(void)
{
static int foo = 1489853723;
foo = foo * (int)435898247 + (int)9382842987;
return (foo & 0x7fffffff);
}
#endif
/* -------------------------- tripleRand ------------------------------ */
/* instance structure */
static t_class *tripleRand_class;
typedef struct _tripleRand
{
t_object x_obj;
t_float x_range[3];
t_outlet *t_out1; /* the outlet */
} t_tripleRand;
void setTripleRandVals(t_tripleRand *x, t_symbol *s, int argc, t_atom *argv)
{
if (argc < 1 || argc > 3)
{
error("tripleRand: Requires 1 - 3 values");
return;
}
if (argc >= 1)
{
x->x_range[0] = atom_getfloat(&argv[0]);
if (x->x_range[0] < 0) x->x_range[0] = 0;
x->x_range[2] = x->x_range[1] = x->x_range[0];
}
if (argc >= 2)
{
x->x_range[1] = atom_getfloat(&argv[1]);
if (x->x_range[1] < 0) x->x_range[1] = 0;
x->x_range[2] = x->x_range[1];
}
if (argc >= 3)
{
x->x_range[2] = atom_getfloat(&argv[2]);
if (x->x_range[2] < 0) x->x_range[2] = 0;
}
}
static void tripleRand_bang(t_tripleRand *x)
{
int i;
t_atom argv[3];
for (i = 0; i < 3; i++)
{
float n = (float)((double)x->x_range[i] * (double)random() * (1. / 2147483648.));
if (n > x->x_range[i]) n = x->x_range[i] - 1;
SETFLOAT((&argv[i]), (float)n);
}
outlet_list(x->t_out1, &s_list, 3, argv);
}
static void *tripleRand_new(t_floatarg arg1, t_floatarg arg2, t_floatarg arg3)
{
t_tripleRand *x = (t_tripleRand *)pd_new(tripleRand_class);
if (arg1 < 0.f)
x->x_range[0] = 0.f;
else
x->x_range[0] = (float)arg1;
if (arg2 <= 0.f)
x->x_range[1] = x->x_range[0];
else
x->x_range[1] = (float)arg2;
if (arg3 <= 0.f)
x->x_range[2] = x->x_range[1];
else
x->x_range[2] = (float)arg3;
x->t_out1 = outlet_new(&x->x_obj, 0);
inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_list, gensym("newVals"));
return (x);
}
void tripleRand_setup(void)
{
tripleRand_class = class_new(gensym("tripleRand"), (t_newmethod)tripleRand_new, 0,
sizeof(t_tripleRand), 0, A_DEFFLOAT, A_DEFFLOAT, A_DEFFLOAT, 0);
class_addbang(tripleRand_class, (t_method)tripleRand_bang);
class_addmethod(tripleRand_class, (t_method)setTripleRandVals,
gensym("newVals"), A_GIMME, A_NULL);
#if PD_MINOR_VERSION < 37
class_sethelpsymbol(tripleRand_class, gensym("tripleRand-help.pd"));
#endif
}
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