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/* Copyright (c) 2002-2003 krzYszcz and others.
* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution. */
/* CHECKME negative 'nbangs' value set during run-time */
#include "m_pd.h"
typedef struct _Uzi
{
t_object x_obj;
t_float x_nbangs;
int x_count;
int x_running;
t_outlet *x_out2;
t_outlet *x_out3;
} t_Uzi;
static t_class *Uzi_class;
#define UZI_RUNNING 1
#define UZI_PAUSED 2
static void Uzi_dobang(t_Uzi *x)
{
/* CHECKME reentrancy */
if (!x->x_running)
{
int count, nbangs = (int)x->x_nbangs;
x->x_running = UZI_RUNNING;
for (count = x->x_count + 1; count <= nbangs; count++)
{
outlet_float(x->x_out3, count);
outlet_bang(((t_object *)x)->ob_outlet);
if (x->x_running == UZI_PAUSED)
{
/* CHECKED: carry bang not sent, even if this is last bang */
x->x_count = count;
return;
}
}
/* CHECKED: carry bang sent also when there are no left-outlet bangs */
/* CHECKED: sent after left outlet, not before */
outlet_bang(x->x_out2);
x->x_count = 0;
x->x_running = 0;
}
}
static void Uzi_bang(t_Uzi *x)
{
/* CHECKED: always restarts (when paused too) */
x->x_count = 0;
x->x_running = 0;
Uzi_dobang(x);
}
static void Uzi_float(t_Uzi *x, t_float f)
{
/* CHECKED: always sets a new value and restarts (when paused too) */
x->x_nbangs = f;
Uzi_bang(x);
}
/* CHECKED: 'pause, resume' (but not just 'resume')
sends a carry bang when not running (a bug?) */
static void Uzi_pause(t_Uzi *x)
{
if (!x->x_running)
x->x_count = (int)x->x_nbangs; /* bug emulation? */
x->x_running = UZI_PAUSED;
}
static void Uzi_resume(t_Uzi *x)
{
if (x->x_running == UZI_PAUSED)
{
x->x_running = 0;
Uzi_dobang(x);
}
}
static void *Uzi_new(t_floatarg f)
{
t_Uzi *x = (t_Uzi *)pd_new(Uzi_class);
x->x_nbangs = (f > 1. ? f : 1.);
x->x_count = 0;
x->x_running = 0;
/* CHECKED: set when paused, but then 'resume' is blocked (a bug?) */
floatinlet_new((t_object *)x, &x->x_nbangs);
outlet_new((t_object *)x, &s_bang);
x->x_out2 = outlet_new((t_object *)x, &s_bang);
x->x_out3 = outlet_new((t_object *)x, &s_float);
return (x);
}
void Uzi_setup(void)
{
Uzi_class = class_new(gensym("Uzi"),
(t_newmethod)Uzi_new, 0,
sizeof(t_Uzi), 0, A_DEFFLOAT, 0);
class_addbang(Uzi_class, Uzi_bang);
class_addfloat(Uzi_class, Uzi_float);
class_addmethod(Uzi_class, (t_method)Uzi_pause, gensym("pause"), 0);
class_addmethod(Uzi_class, (t_method)Uzi_pause, gensym("break"), 0);
class_addmethod(Uzi_class, (t_method)Uzi_resume, gensym("resume"), 0);
class_addmethod(Uzi_class, (t_method)Uzi_resume, gensym("continue"), 0);
}
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