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/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.
iemlib1 written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */
#include "m_pd.h"
#include "iemlib.h"
/* ----------------------------- for++ -------------------------------- */
/* -- an internal timed counter (start-, stop-number and metro-time) -- */
typedef struct _forpp
{
t_object x_obj;
int x_beg;
int x_end;
t_float x_delay;
int x_cur;
int x_incr;
void *x_out_end;
void *x_clock;
void *x_clock2;
} t_forpp;
static t_class *forpp_class;
static void forpp_tick2(t_forpp *x)
{
outlet_bang(x->x_out_end);
clock_unset(x->x_clock2);
}
static void forpp_tick(t_forpp *x)
{
outlet_float(x->x_obj.ob_outlet, x->x_cur);
x->x_cur += x->x_incr;
if(x->x_incr > 0)
{
if(x->x_cur <= x->x_end)
clock_delay(x->x_clock, x->x_delay);
else
{
clock_unset(x->x_clock);
clock_delay(x->x_clock2, x->x_delay);
}
}
else
{
if(x->x_cur >= x->x_end)
clock_delay(x->x_clock, x->x_delay);
else
{
clock_unset(x->x_clock);
clock_delay(x->x_clock2, x->x_delay);
}
}
}
static void forpp_bang(t_forpp *x)
{
x->x_cur = x->x_beg;
outlet_float(x->x_obj.ob_outlet, x->x_cur);
x->x_cur += x->x_incr;
if(x->x_incr > 0)
{
if(x->x_cur <= x->x_end)
clock_delay(x->x_clock, x->x_delay);
else
{
clock_unset(x->x_clock);
clock_delay(x->x_clock2, x->x_delay);
}
}
else
{
if(x->x_cur >= x->x_end)
clock_delay(x->x_clock, x->x_delay);
else
{
clock_unset(x->x_clock);
clock_delay(x->x_clock2, x->x_delay);
}
}
}
static void forpp_start(t_forpp *x)
{
forpp_bang(x);
}
static void forpp_stop(t_forpp *x)
{
if(x->x_incr > 0)
x->x_cur = x->x_end + 1;
else
x->x_cur = x->x_end - 1;
clock_unset(x->x_clock);
clock_unset(x->x_clock2);
}
static void forpp_float(t_forpp *x, t_floatarg beg)
{
x->x_beg = (int)beg;
if(x->x_end < x->x_beg)
x->x_incr = -1;
else
x->x_incr = 1;
}
static void forpp_ft1(t_forpp *x, t_floatarg end)
{
x->x_end = (int)end;
if(x->x_end < x->x_beg)
x->x_incr = -1;
else
x->x_incr = 1;
}
static void forpp_ft2(t_forpp *x, t_floatarg delay)
{
if(delay < 0.0)
delay = 0.0;
x->x_delay = delay;
}
static void forpp_list(t_forpp *x, t_symbol *s, int argc, t_atom *argv)
{
if(argc == 2)
{
forpp_float(x, atom_getfloatarg(0, argc, argv));
forpp_ft1(x, atom_getfloatarg(1, argc, argv));
}
else if(argc == 3)
{
forpp_float(x, atom_getfloatarg(0, argc, argv));
forpp_ft1(x, atom_getfloatarg(1, argc, argv));
forpp_ft2(x, atom_getfloatarg(2, argc, argv));
}
}
static void *forpp_new(t_floatarg beg, t_floatarg end, t_floatarg delay)
{
t_forpp *x = (t_forpp *)pd_new(forpp_class);
inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("ft1"));
inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("ft2"));
outlet_new(&x->x_obj, &s_float);
x->x_out_end = outlet_new(&x->x_obj, &s_bang);
x->x_clock = clock_new(x, (t_method)forpp_tick);
x->x_clock2 = clock_new(x, (t_method)forpp_tick2);
x->x_beg = (int)beg;
x->x_end = (int)end;
if(x->x_end < x->x_beg)
x->x_incr = -1;
else
x->x_incr = 1;
if(delay < 0.0)
delay = 0.0;
x->x_delay = delay;
x->x_cur = x->x_beg;
return(x);
}
static void forpp_ff(t_forpp *x)
{
clock_free(x->x_clock);
clock_free(x->x_clock2);
}
void forpp_setup(void)
{
forpp_class = class_new(gensym("for++"), (t_newmethod)forpp_new,
(t_method)forpp_ff, sizeof(t_forpp),
0, A_DEFFLOAT, A_DEFFLOAT, A_DEFFLOAT, 0);
class_addbang(forpp_class, forpp_bang);
class_addfloat(forpp_class, forpp_float);
class_addlist(forpp_class, forpp_list);
class_addmethod(forpp_class, (t_method)forpp_start, gensym("start"), 0);
class_addmethod(forpp_class, (t_method)forpp_stop, gensym("stop"), 0);
class_addmethod(forpp_class, (t_method)forpp_ft1, gensym("ft1"), A_FLOAT, 0);
class_addmethod(forpp_class, (t_method)forpp_ft2, gensym("ft2"), A_FLOAT, 0);
class_sethelpsymbol(forpp_class, gensym("iemhelp/help-for++"));
}
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