1 files changed, 46 insertions, 0 deletions
diff --git a/gem_change.c b/gem_change.c
new file mode 100644
index 0000000..a577868
--- /dev/null
+++ b/gem_change.c
@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 1997-1999 Mark Danks.
+ * For information on usage and redistribution, and for a DISCLAIMER OF ALL
+ * WARRANTIES, see the file, "GEM.LICENSE.TERMS" in this distribution.
+ */
+
+#include "m_pd.h"
+
+/* -------------------------- gem_change ------------------------------ */
+
+/* instance structure */
+
+static t_class *gem_change_class;
+
+typedef struct _gem_change
+{
+	t_object    x_obj;			/* obligatory object header */
+	float		x_cur;
+	t_outlet    *t_out1;	    /* the outlet */
+} t_gem_change;
+
+static void gem_change_float(t_gem_change *x, t_floatarg n)
+{
+    if (n != x->x_cur)
+	{
+		outlet_float(x->t_out1, n);
+		x->x_cur = n;
+    }
+}
+
+static void *gem_change_new(void) /* init vals in struc */
+{
+    t_gem_change *x = (t_gem_change *)pd_new(gem_change_class);
+    x->x_cur = -1.f;
+	x->t_out1 = outlet_new(&x->x_obj, 0);
+    return(x);
+}
+
+void gem_change_setup(void)
+{
+    gem_change_class = class_new(gensym("gem_change"), (t_newmethod)gem_change_new, 0,
+    	    	    	sizeof(t_gem_change), 0, A_NULL);
+    class_addfloat(gem_change_class, gem_change_float);
+
+	 class_sethelpsymbol(gem_change_class, gensym("help-gem_change"));
+}