1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
|
/*
* wrap: wrap floats between two limits
*
* (c) 1999-2011 IOhannes m zmölnig, forum::für::umläute, institute of electronic music and acoustics (iem)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "zexy.h"
static t_class *wrap_class = NULL;
typedef struct _wrap {
t_object x_obj;
t_float f_upper, f_lower;
} t_wrap;
static void wrap_float(t_wrap *x, t_float f)
{
if (x->f_lower == x->f_upper) {
outlet_float(x->x_obj.ob_outlet, x->f_lower);
} else {
t_float modulo = fmod((f - x->f_lower), (x->f_upper - x->f_lower));
if (modulo < 0) {
modulo += (x->f_upper - x->f_lower);
}
outlet_float(x->x_obj.ob_outlet, x->f_lower + modulo);
}
}
static void wrap_set(t_wrap *x, t_symbol *UNUSED(s), int argc, t_atom *argv)
{
t_float f1, f2;
switch (argc) {
case 0:
f1 = 0.0;
f2 = 1.0;
break;
case 1:
f1 = 0.0;
f2 = atom_getfloat(argv);
break;
default:
f1 = atom_getfloat(argv);
f2 = atom_getfloat(argv + 1);
}
x->f_lower = (f1 < f2) ? f1 : f2;
x->f_upper = (f1 > f2) ? f1 : f2;
}
static void *wrap_new(t_symbol *s, int argc, t_atom *argv)
{
t_wrap *x = (t_wrap *)pd_new(wrap_class);
wrap_set(x, s, argc, argv);
outlet_new(&x->x_obj, gensym("float"));
inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("float"), gensym("set"));
return (x);
}
static void wrap_help(t_wrap *UNUSED(x))
{
post("\n" HEARTSYMBOL " wrap\t\t:: wrap a float between to boundaries");
}
ZEXY_SETUP void wrap_setup(void)
{
wrap_class = zexy_new("wrap", wrap_new, 0, t_wrap, CLASS_DEFAULT, "*");
class_addfloat(wrap_class, wrap_float);
zexy_addmethod(wrap_class, (t_method)wrap_set, "set", "*");
zexy_addmethod(wrap_class, (t_method)wrap_help, "help", "");
zexy_register("wrap");
}
|
