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/*
* positive - wraps floats back into positive numbers from negative
* Copyright (c) 2005-2023 Edward Kelly
* Forinformaion on usage and distribution, and for a DICLAIMER OF ALL
* WARRANTIES, see the file "LICENSE.txt," in this distribution. */
#include "m_pd.h"
t_class *positive_class;
typedef struct _positive
{
t_object x_obj;
t_float value;
t_outlet *positive;
} t_positive;
void positive_float(t_positive *y, t_floatarg f)
{
y->value = f;
if(y->value < 0)
{
int i = (int)y->value;
i = i * -1 + 1;
y->value += (float)i;
}
outlet_float(y->positive, y->value);
}
void positive_bang(t_positive *y)
{
outlet_float(y->positive, y->value);
}
void *positive_new(t_floatarg f)
{
t_positive *y = (t_positive *)pd_new(positive_class);
y->value = f;
y->positive = outlet_new(&y->x_obj, gensym("float"));
return(void *)y;
}
void positive_setup(void)
{
positive_class = class_new(gensym("positive"),
(t_newmethod)positive_new,
0, sizeof(t_positive),
0, A_DEFFLOAT, 0);
post("positive always returns a positive value");
post("negative values are shifted up");
class_addbang(positive_class, positive_bang);
class_addfloat(positive_class, positive_float);
}
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