From 4f582b66331fe9211588eb668260b88b6fed749b Mon Sep 17 00:00:00 2001
From: Bruno Raoult <braoult@gmail.com>
Date: Sat, 30 Oct 2021 22:04:28 +0200
Subject: [PATCH] piece.c

---
 src/piece.c | 112 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 112 insertions(+)
 create mode 100644 src/piece.c

diff --git a/src/piece.c b/src/piece.c
new file mode 100644
index 0000000..ae17fe2
--- /dev/null
+++ b/src/piece.c
@@ -0,0 +1,112 @@
+/* piece.c - piece list 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>
+ *
+ */
+
+#include <malloc.h>
+#include "chessdefs.h"
+#include "piece.h"
+
+static pool_t *pieces_pool;
+
+void piece_list_print(struct list_head *list)
+{
+    struct list_head *p_cur, *tmp;
+    piece_list_t *piece;
+    int i = 0;
+
+    list_for_each_safe(p_cur, tmp, list) {
+        piece = list_entry(p_cur, piece_list_t, list);
+
+        printf("%c%c%c ", *piece2string(piece->piece),
+               FILE2C(GET_F(piece->square)),
+               RANK2C(GET_R(piece->square)));
+        /*printf("\t%d: %s on %c%c\n", i,
+               piece2string(piece->piece),
+               FILE2C(GET_F(piece->square)),
+               RANK2C(GET_R(piece->square)));
+        */
+        i++;
+    }
+    printf("Total pieces = %d\n", i);
+}
+
+void pieces_print_pos_pieces(pos_t *pos)
+{
+    printf("White pieces : \n\t");
+    piece_list_print(&pos->pieces_white);
+    printf("Black pieces : \n\t");
+    piece_list_print(&pos->pieces_black);
+}
+
+pool_t *piece_pool_init()
+{
+    if (!pieces_pool)
+        pieces_pool = pool_init("pieces", 128, sizeof(piece_list_t));
+    return pieces_pool;
+}
+
+static eval_t pieces_values[] = {
+    [PAWN] = PAWN_VALUE,
+    [KNIGHT] = KNIGHT_VALUE,
+    [BISHOP] = BISHOP_VALUE,
+    [ROOK] = ROOK_VALUE,
+    [QUEEN] = QUEEN_VALUE,
+    [KING] = KING_VALUE
+};
+
+piece_list_t *piece_add(pos_t *pos, piece_t piece, square_t square)
+{
+    piece_list_t *new;
+    short color = COLOR(piece);
+
+    /* printf("%s: piece=%02x square=%02x\n", __func__, piece, square);
+    printf("%s: Adding %s %s on %c%c\n",
+           __func__,
+           color? "Black": "White",
+           piece2string(piece),
+           FILE2C(GET_F(square)),
+           RANK2C(GET_R(square)));
+    */
+    if ((new = pool_get(pieces_pool))) {
+        //printf("color=%d addp=%p\n", COLOR(piece), &pos->pieces[COLOR(piece)]);
+        list_add_tail(&new->list,
+                 color? &pos->pieces_black: &pos->pieces_white);
+        new->piece = piece;
+        new->square = square;
+        new->castle = 0;
+        new-> value = pieces_values[PIECE(piece)];
+    }
+
+    return new;
+}
+
+#ifdef PIECEBIN
+#include "fen.h"
+int main(int ac, char**av)
+{
+    //size_t i;
+    pos_t *pos;
+    //piece_list_t *plist;
+
+    pos = pos_create();
+    piece_pool_init();
+
+
+    if (ac == 1) {
+        pos_startpos(pos);
+    } else {
+        fen2pos(pos, av[1]);
+    }
+    pos_print(pos);
+    pieces_print_pos_pieces(pos);
+}
+#endif