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diff --git a/digital/io-hub/src/robospierre/path.c b/digital/io-hub/src/robospierre/path.c
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+/* path.c */
+/* robospierre - Eurobot 2011 AI. {{{
+ *
+ * Copyright (C) 2011 Nicolas Schodet
+ *
+ * APBTeam:
+ * Web: http://apbteam.org/
+ * Email: team AT apbteam DOT org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * }}} */
+#include "common.h"
+#include "path.h"
+
+/** Context. */
+struct path_t
+{
+ /** Position of end points. */
+ vect_t endpoints[2];
+ /** Whether the last update was a success. */
+ uint8_t found;
+};
+static struct path_t path;
+
+void
+path_init (void)
+{
+}
+
+void
+path_endpoints (vect_t s, vect_t d)
+{
+ path.endpoints[0] = d;
+ path.endpoints[1] = s;
+}
+
+void
+path_escape (uint8_t factor)
+{
+}
+
+void
+path_obstacle (uint8_t i, vect_t c, uint16_t r, uint8_t factor,
+ uint16_t valid)
+{
+}
+
+void
+path_decay (void)
+{
+}
+
+void
+path_update (void)
+{
+ path.found = 1;
+}
+
+uint8_t
+path_get_next (vect_t *p)
+{
+ if (path.found)
+ {
+ *p = path.endpoints[0];
+ return 1;
+ }
+ else
+ return 0;
+}
+