1 files changed, 68 insertions, 0 deletions
diff --git a/cupd.c b/cupd.c
new file mode 100644
index 0000000..66d42c0
--- /dev/null
+++ b/cupd.c
@@ -0,0 +1,68 @@
+#include "m_pd.h"
+
+t_class *cupd_class;
+
+typedef struct _cupd
+{
+  t_object x_obj;
+  t_int f_count;
+  t_float f_dir, f_prevdir, firstbang, floatset;
+  t_outlet *count;
+} t_cupd;
+
+void cupd_float(t_cupd *y, t_floatarg f)
+{
+  y->f_count = f;
+  y->floatset = 1;
+}
+
+void cupd_bang(t_cupd *y)
+{
+  int flag = y->f_dir != y->f_prevdir ? 1 : 0;
+  if (flag==1&&y->firstbang==0&&y->floatset==0)
+    {
+      y->f_count += y->f_dir == 0 ? 2 : -2;
+      outlet_float(y->count, y->f_count);
+      y->f_count += y->f_dir == 0 ? 1 : -1;
+    }
+  else
+    {
+      outlet_float(y->count, y->f_count);
+      y->f_count += y->f_dir == 0 ? 1 : -1;
+      y->firstbang = y->floatset = 0;
+    }
+  y->f_prevdir = y->f_dir;
+}
+
+void cupd_setbang(t_cupd *y, t_floatarg f)
+{
+  y->f_count = f;
+  outlet_float(y->count, y->f_count);
+  y->f_count += y->f_dir == 0 ? 1 : -1;
+  y->firstbang = y->floatset = 0;
+  y->f_prevdir = y->f_dir;
+}
+
+void *cupd_new(t_floatarg f)
+{
+  t_cupd *y = (t_cupd *)pd_new(cupd_class);
+  y->f_dir = f;
+  y->f_count = 0;
+  y->firstbang = 1;
+  y->floatset = 0;
+  floatinlet_new(&y->x_obj, &y->f_dir);
+  y->count = outlet_new(&y->x_obj, gensym("float"));
+  return(void *)y;
+}
+
+void cupd_setup(void) 
+{
+  cupd_class = class_new(gensym("cupd"),
+  (t_newmethod)cupd_new,
+  0, sizeof(t_cupd),
+  0, A_DEFFLOAT, 0);
+  post("cupd counts up ^_^ and down _^_");
+
+  class_addbang(cupd_class, cupd_bang);
+  class_addfloat(cupd_class, cupd_float);
+  class_addmethod(cupd_class, (t_method)cupd_setbang, gensym("setbang"), A_DEFFLOAT, 0);}