add license information & rename typedefs

src/move.h

@@ -1,3 +1,16 @@
+/* move.h - move management.
+ *
+ * Copyright (C) 2021 Bruno Raoult ("br")
+ * Licensed under the GNU General Public License v3.0 or later.
+ * Some rights reserved. See COPYING.
+ *
+ * You should have received a copy of the GNU General Public License along with this
+ * program. If not, see <https://www.gnu.org/licenses/gpl-3.0-standalone.htmlL>.
+ *
+ * SPDX-License-Identifier: GPL-3.0-or-later <https://spdx.org/licenses/GPL-3.0-or-later.html>
+ *
+ */
+
 #ifndef ROOK_H
 #define ROOK_H
 
@@ -5,10 +18,8 @@
 #include "position.h"
 
 typedef struct {
-    PIECE piece;
-    SQUARE from;
-    SQUARE to;
-
+    piece_t t;
+    square_t from, to;
 } MOVE;
 
 extern MOVE *moves_rook(POS *pos);