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+#ifndef logistic_h
+#define logistic_h
+/* logistic.h */
+/* 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 "element.h"
+#include "clamp.h"
+
+/** Logistic context. */
+struct logistic_t
+{
+ /** Current robot content.
+ *
+ * Elements are fully specified (pawn, queen or king). An exception can
+ * occurs when a codebar is read but does not correspond to a valid word.
+ *
+ * When a movement is outgoing, the element is kept in the source slot. */
+ uint8_t slots[CLAMP_SLOT_NB];
+ /** Current element movement source and destination, CLAMP_SLOT_NB if no
+ * current movement. */
+ uint8_t moving_from, moving_to;
+ /** Best collect direction. */
+ uint8_t collect_direction;
+ /** Idle clamp position, depend on collect direction. */
+ uint8_t clamp_pos_idle;
+};
+
+/** Global context. */
+extern struct logistic_t logistic_global;
+
+/** Initialise module. */
+void
+logistic_init (void);
+
+/** To be called at regular interval to check for bad robot state. */
+void
+logistic_update (void);
+
+/** To be called when a new element is entering the robot. */
+void
+logistic_element_new (uint8_t pos, uint8_t element);
+
+/** To be called when a element movement is done. */
+void
+logistic_element_move_done (void);
+
+#endif /* logistic_h */