diff --git a/include/qt_clust.h b/include/qt_clust.h
new file mode 100644
index 000000000..720eec8df
--- /dev/null
+++ b/include/qt_clust.h
@@ -0,0 +1,29 @@
+/*	SCCS Id: @(#)qt_clust.h	3.3	1999/11/19	*/
+/* Copyright (c) Warwick Allison, 1999. */
+/* NetHack may be freely redistributed.  See license for details. */
+
+#ifndef clusterizer_H
+#define clusterizer_H
+
+#include <qrect.h>
+
+class Clusterizer {
+public:
+	Clusterizer(int maxclusters);
+	~Clusterizer();
+
+	void add(int x, int y); // 1x1 rectangle (point)
+	void add(int x, int y, int w, int h);
+	void add(const QRect& rect);
+
+	void clear();
+	int clusters() { return count; }
+	const QRect& operator[](int i);
+
+private:
+	QRect* cluster;
+	int count;
+	const int max;
+};
+
+#endif