commit d7273cde403340578a406a58fc419ae03277a84f
parent 318de62766d2fd0caa0594f939cd1b2d9d143e0a
Author: Hiltjo Posthuma <hiltjo@codemadness.org>
Date: Tue, 19 Dec 2023 00:49:17 +0100
merge code together, symlink binaries
Diffstat:
| M | Makefile | | | 4 | ++-- |
| D | fen_to_ascii.c | | | 290 | ------------------------------------------------------------------------------- |
| M | fen_to_svg.c | | | 260 | ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++----------- |
| D | fen_to_tty.c | | | 346 | ------------------------------------------------------------------------------- |
4 files changed, 228 insertions(+), 672 deletions(-)
diff --git a/Makefile b/Makefile
@@ -1,7 +1,7 @@
build: clean
${CC} -o fen_to_svg fen_to_svg.c ${CFLAGS} ${LDFLAGS}
- ${CC} -o fen_to_ascii fen_to_ascii.c ${CFLAGS} ${LDFLAGS}
- ${CC} -o fen_to_tty fen_to_tty.c ${CFLAGS} ${LDFLAGS}
+ ln -s fen_to_svg fen_to_ascii
+ ln -s fen_to_svg fen_to_tty
db:
rm -f lichess_db_puzzle.csv.zst lichess_db_puzzle.csv
diff --git a/fen_to_ascii.c b/fen_to_ascii.c
@@ -1,290 +0,0 @@
-/* TODO: option to flip board? */
-
-#include <ctype.h>
-#include <stdio.h>
-#include <string.h>
-
-static char board[8][8];
-static char highlight[8][8];
-
-static int side_to_move = 'w'; /* default: white to move */
-static int white_can_castle[2] = { 0, 0 }; /* allow king side, allow queen side */
-static int black_can_castle[2] = { 0, 0 }; /* allow king side, allow queen side */
-
-static const int showcoords = 1; /* config: show board coordinates? */
-
-int
-isvalidsquare(int x, int y)
-{
- return !(x < 0 || x >= 8 || y < 0 || y >= 8);
-}
-
-/* place a piece, if possible */
-void
-place(int piece, int x, int y)
-{
- if (!isvalidsquare(x, y))
- return;
-
- board[y][x] = piece;
-}
-
-/* get piece, if possible */
-int
-getpiece(int x, int y)
-{
- if (!isvalidsquare(x, y))
- return 0;
- return board[y][x];
-}
-
-int
-squaretoxy(const char *s, int *x, int *y)
-{
- if (*s >= 'a' && *s <= 'h' &&
- *(s + 1) >= '1' && *(s + 1) <= '8') {
- *x = *s - 'a';
- *y = '8' - *(s + 1);
- return 1;
- }
- return 0;
-}
-
-void
-highlightmove(int x1, int y1, int x2, int y2)
-{
- if (isvalidsquare(x1, y1))
- highlight[y1][x1] = 1;
-
- if (isvalidsquare(x2, y2))
- highlight[y2][x2] = 1;
-}
-
-void
-showpiece(int c)
-{
- const char *s = "";
-
- /* simple or use unicode character */
-#if 1
- putchar(c);
- return;
-#endif
-
- switch (c) {
- case 'K': s = "♔"; break;
- case 'Q': s = "♕"; break;
- case 'R': s = "♖"; break;
- case 'B': s = "♗"; break;
- case 'N': s = "♘"; break;
- case 'P': s = "♙"; break;
- case 'k': s = "♚"; break;
- case 'q': s = "♛"; break;
- case 'r': s = "♜"; break;
- case 'b': s = "♝"; break;
- case 'n': s = "♞"; break;
- case 'p': s = "♟"; break;
- }
-
- if (*s)
- fputs(s, stdout);
-}
-
-void
-showboardfen(void)
-{
- int x, y, piece, skip = 0;
-
- for (y = 0; y < 8; y++) {
- if (y > 0)
- putchar('/');
- skip = 0;
- for (x = 0; x < 8; x++) {
- piece = getpiece(x, y);
- if (piece) {
- if (skip)
- putchar(skip + '0');
- putchar(piece);
- skip = 0;
- } else {
- skip++;
- }
- }
- if (skip)
- putchar(skip + '0');
- }
-
- /* ? TODO: detect en passant, invalid castling etc? */
-}
-
-/* show board */
-/* TODO: show fancier, unicode and background square color */
-/* TODO: use the output format similar to stockfish "d" command */
-void
-showboard(void)
-{
- int x, y, piece;
-
- printf("Board FEN:\n");
- showboardfen();
- printf("\n\n");
-
- for (y = 0; y < 8; y++) {
- printf("+---+---+---+---+---+---+---+---+\n");
- for (x = 0; x < 8; x++) {
- if (x == 0)
- putchar('|');
- fputs(" ", stdout);
- piece = getpiece(x, y);
- if (piece)
- showpiece(piece);
- else
- fputs(" ", stdout);
- fputs(" ", stdout);
- putchar('|');
- }
- if (showcoords) {
- putchar(' ');
- putchar('8' - y);
- }
- putchar('\n');
- }
- printf("+---+---+---+---+---+---+---+---+\n");
- if (showcoords)
- printf(" a | b | c | d | e | f | g | h |\n");
-
- fputs("\n", stdout);
-
-#if 0
- if (side_to_move == 'w') {
- fputs("White to move\n", stdout);
- } else if (side_to_move == 'b')
- fputs("Black to move\n", stdout);
-
- if (white_can_castle[0])
- fputs("White can castle king side\n", stdout);
- if (white_can_castle[1])
- fputs("White can castle queen side\n", stdout);
- if (black_can_castle[0])
- fputs("Black can castle king side\n", stdout);
- if (black_can_castle[1])
- fputs("Black can castle queen side\n", stdout);
-#endif
-}
-
-int
-main(int argc, char *argv[])
-{
- const char *fen, *moves, *s;
- int x, y, x2, y2, field, piece;
- char pieces[] = "PNBRQKpnbrqk", square[3];
-
- if (argc != 3) {
- fprintf(stderr, "usage: %s <FEN> <moves>\n", argv[0]);
- return 1;
- }
-
- fen = argv[1];
- moves = argv[2];
-
- /* initial board state, FEN format */
- x = y = field = 0;
- for (s = fen; *s; s++) {
- /* next field, fields are: piece placement data, active color,
- Castling availability, En passant target square,
- Halfmove clock, Fullmove number */
- if (*s == ' ') {
- field++;
- continue;
- }
-
- switch (field) {
- case 0: /* piece placement data */
- /* skip square */
- if (*s >= '1' && *s <= '9') {
- x += (*s - '0');
- continue;
- }
- /* next rank */
- if (*s == '/') {
- x = 0;
- y++;
- continue;
- }
- /* is piece? place it */
- if (strchr(pieces, *s))
- place(*s, x++, y);
- break;
- case 1: /* active color */
- if (*s == 'w' || *s == 'b')
- side_to_move = *s;
- break;
- case 2: /* castling availability */
- if (*s == '-') {
- white_can_castle[0] = 0;
- white_can_castle[1] = 0;
- black_can_castle[0] = 0;
- black_can_castle[1] = 0;
- } else if (*s == 'K') {
- white_can_castle[0] = 1;
- } else if (*s == 'Q') {
- white_can_castle[1] = 1;
- } else if (*s == 'k') {
- black_can_castle[0] = 1;
- } else if (*s == 'q') {
- black_can_castle[1] = 1;
- }
- break;
- case 3: /* TODO: en-passant square, rest of the fields */
- break;
- }
- /* TODO: parse which side to move, en-passant, etc */
- }
-
- /* process moves */
- square[2] = '\0';
- x = y = x2 = y2 = -1;
- for (s = moves; *s; s++) {
- if (*s == ' ')
- continue;
- if ((*s >= 'a' && *s <= 'h') &&
- (*(s + 1) >= '1' && *(s + 1) <= '8') &&
- (*(s + 2) >= 'a' && *(s + 2) <= 'h') &&
- (*(s + 3) >= '1' && *(s + 3) <= '8')) {
- square[0] = *s;
- square[1] = *(s + 1);
-
- s += 2;
- squaretoxy(square, &x, &y);
- piece = getpiece(x, y);
-
- place(0, x, y); /* clear square */
-
- /* place piece at new location */
- square[0] = *s;
- square[1] = *(s + 1);
- squaretoxy(square, &x2, &y2);
- place(piece, x2, y2);
- s += 2;
-
- /* possible promotion? (queen, knight, bishop) */
- if (*s == 'q' || *s == 'n' || *s == 'b') {
- if (side_to_move == 'w')
- piece = toupper(*s);
- else
- piece = *s;
- place(piece, x2, y2);
- s++;
- }
-
- /* switch which side it is to move */
- side_to_move = side_to_move == 'b' ? 'w' : 'b';
- }
- }
- /* highlight last move */
- highlightmove(x, y, x2, y2);
-
- showboard();
-
- return 0;
-}
diff --git a/fen_to_svg.c b/fen_to_svg.c
@@ -4,6 +4,9 @@
#include <stdio.h>
#include <string.h>
+#define SETFGCOLOR(r,g,b) printf("\x1b[38;2;%d;%d;%dm", r, g, b)
+#define SETBGCOLOR(r,g,b) printf("\x1b[48;2;%d;%d;%dm", r, g, b)
+
static char board[8][8];
static char highlight[8][8];
@@ -19,6 +22,14 @@ isvalidsquare(int x, int y)
return !(x < 0 || x >= 8 || y < 0 || y >= 8);
}
+int
+isvalidpiece(int c)
+{
+ static char pieces[] = "PNBRQKpnbrqk";
+
+ return strchr(pieces, c) ? 1 : 0;
+}
+
/* place a piece, if possible */
void
place(int piece, int x, int y)
@@ -61,32 +72,6 @@ highlightmove(int x1, int y1, int x2, int y2)
}
void
-showpiece(int c)
-{
- const char *s = "";
-
- /* lichess default set,
- extracted from https://github.com/lichess-org/lila/tree/master/public/piece/cburnett */
- switch (c) {
- case 'K': s = "<g fill=\"none\" fill-rule=\"evenodd\" stroke=\"#000\" stroke-width=\"1.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M22.5 11.63V6M20 8h5\" stroke-linejoin=\"miter\"/><path d=\"M22.5 25s4.5-7.5 3-10.5c0 0-1-2.5-3-2.5s-3 2.5-3 2.5c-1.5 3 3 10.5 3 10.5\" fill=\"#fff\" stroke-linecap=\"butt\" stroke-linejoin=\"miter\"/><path d=\"M11.5 37c5.5 3.5 15.5 3.5 21 0v-7s9-4.5 6-10.5c-4-6.5-13.5-3.5-16 4V27v-3.5c-3.5-7.5-13-10.5-16-4-3 6 5 10 5 10V37z\" fill=\"#fff\"/><path d=\"M11.5 30c5.5-3 15.5-3 21 0m-21 3.5c5.5-3 15.5-3 21 0m-21 3.5c5.5-3 15.5-3 21 0\"/></g>"; break;
- case 'Q': s = "<g fill=\"#fff\" fill-rule=\"evenodd\" stroke=\"#000\" stroke-width=\"1.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M8 12a2 2 0 1 1-4 0 2 2 0 1 1 4 0zm16.5-4.5a2 2 0 1 1-4 0 2 2 0 1 1 4 0zM41 12a2 2 0 1 1-4 0 2 2 0 1 1 4 0zM16 8.5a2 2 0 1 1-4 0 2 2 0 1 1 4 0zM33 9a2 2 0 1 1-4 0 2 2 0 1 1 4 0z\"/><path d=\"M9 26c8.5-1.5 21-1.5 27 0l2-12-7 11V11l-5.5 13.5-3-15-3 15-5.5-14V25L7 14l2 12z\" stroke-linecap=\"butt\"/><path d=\"M9 26c0 2 1.5 2 2.5 4 1 1.5 1 1 .5 3.5-1.5 1-1.5 2.5-1.5 2.5-1.5 1.5.5 2.5.5 2.5 6.5 1 16.5 1 23 0 0 0 1.5-1 0-2.5 0 0 .5-1.5-1-2.5-.5-2.5-.5-2 .5-3.5 1-2 2.5-2 2.5-4-8.5-1.5-18.5-1.5-27 0z\" stroke-linecap=\"butt\"/><path d=\"M11.5 30c3.5-1 18.5-1 22 0M12 33.5c6-1 15-1 21 0\" fill=\"none\"/></g>"; break;
- case 'R': s = "<g fill=\"#fff\" fill-rule=\"evenodd\" stroke=\"#000\" stroke-width=\"1.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M9 39h27v-3H9v3zm3-3v-4h21v4H12zm-1-22V9h4v2h5V9h5v2h5V9h4v5\" stroke-linecap=\"butt\"/><path d=\"M34 14l-3 3H14l-3-3\"/><path d=\"M31 17v12.5H14V17\" stroke-linecap=\"butt\" stroke-linejoin=\"miter\"/><path d=\"M31 29.5l1.5 2.5h-20l1.5-2.5\"/><path d=\"M11 14h23\" fill=\"none\" stroke-linejoin=\"miter\"/></g>"; break;
- case 'B': s = "<g fill=\"none\" fill-rule=\"evenodd\" stroke=\"#000\" stroke-width=\"1.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><g fill=\"#fff\" stroke-linecap=\"butt\"><path d=\"M9 36c3.39-.97 10.11.43 13.5-2 3.39 2.43 10.11 1.03 13.5 2 0 0 1.65.54 3 2-.68.97-1.65.99-3 .5-3.39-.97-10.11.46-13.5-1-3.39 1.46-10.11.03-13.5 1-1.354.49-2.323.47-3-.5 1.354-1.94 3-2 3-2z\"/><path d=\"M15 32c2.5 2.5 12.5 2.5 15 0 .5-1.5 0-2 0-2 0-2.5-2.5-4-2.5-4 5.5-1.5 6-11.5-5-15.5-11 4-10.5 14-5 15.5 0 0-2.5 1.5-2.5 4 0 0-.5.5 0 2z\"/><path d=\"M25 8a2.5 2.5 0 1 1-5 0 2.5 2.5 0 1 1 5 0z\"/></g><path d=\"M17.5 26h10M15 30h15m-7.5-14.5v5M20 18h5\" stroke-linejoin=\"miter\"/></g>"; break;
- case 'N': s = "<g fill=\"none\" fill-rule=\"evenodd\" stroke=\"#000\" stroke-width=\"1.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M22 10c10.5 1 16.5 8 16 29H15c0-9 10-6.5 8-21\" fill=\"#fff\"/><path d=\"M24 18c.38 2.91-5.55 7.37-8 9-3 2-2.82 4.34-5 4-1.042-.94 1.41-3.04 0-3-1 0 .19 1.23-1 2-1 0-4.003 1-4-4 0-2 6-12 6-12s1.89-1.9 2-3.5c-.73-.994-.5-2-.5-3 1-1 3 2.5 3 2.5h2s.78-1.992 2.5-3c1 0 1 3 1 3\" fill=\"#fff\"/><path d=\"M9.5 25.5a.5.5 0 1 1-1 0 .5.5 0 1 1 1 0zm5.433-9.75a.5 1.5 30 1 1-.866-.5.5 1.5 30 1 1 .866.5z\" fill=\"#000\"/></g>"; break;
- case 'P': s = "<path d=\"M22.5 9c-2.21 0-4 1.79-4 4 0 .89.29 1.71.78 2.38C17.33 16.5 16 18.59 16 21c0 2.03.94 3.84 2.41 5.03-3 1.06-7.41 5.55-7.41 13.47h23c0-7.92-4.41-12.41-7.41-13.47 1.47-1.19 2.41-3 2.41-5.03 0-2.41-1.33-4.5-3.28-5.62.49-.67.78-1.49.78-2.38 0-2.21-1.79-4-4-4z\" fill=\"#fff\" stroke=\"#000\" stroke-width=\"1.5\" stroke-linecap=\"round\"/>"; break;
- case 'k': s = "<g fill=\"none\" fill-rule=\"evenodd\" stroke=\"#000\" stroke-width=\"1.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M22.5 11.63V6\" stroke-linejoin=\"miter\"/><path d=\"M22.5 25s4.5-7.5 3-10.5c0 0-1-2.5-3-2.5s-3 2.5-3 2.5c-1.5 3 3 10.5 3 10.5\" fill=\"#000\" stroke-linecap=\"butt\" stroke-linejoin=\"miter\"/><path d=\"M11.5 37c5.5 3.5 15.5 3.5 21 0v-7s9-4.5 6-10.5c-4-6.5-13.5-3.5-16 4V27v-3.5c-3.5-7.5-13-10.5-16-4-3 6 5 10 5 10V37z\" fill=\"#000\"/><path d=\"M20 8h5\" stroke-linejoin=\"miter\"/><path d=\"M32 29.5s8.5-4 6.03-9.65C34.15 14 25 18 22.5 24.5l.01 2.1-.01-2.1C20 18 9.906 14 6.997 19.85c-2.497 5.65 4.853 9 4.853 9\" stroke=\"#ececec\"/><path d=\"M11.5 30c5.5-3 15.5-3 21 0m-21 3.5c5.5-3 15.5-3 21 0m-21 3.5c5.5-3 15.5-3 21 0\" stroke=\"#ececec\"/></g>"; break;
- case 'q': s = "<g fill-rule=\"evenodd\" stroke=\"#000\" stroke-width=\"1.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><g stroke=\"none\"><circle cx=\"6\" cy=\"12\" r=\"2.75\"/><circle cx=\"14\" cy=\"9\" r=\"2.75\"/><circle cx=\"22.5\" cy=\"8\" r=\"2.75\"/><circle cx=\"31\" cy=\"9\" r=\"2.75\"/><circle cx=\"39\" cy=\"12\" r=\"2.75\"/></g><path d=\"M9 26c8.5-1.5 21-1.5 27 0l2.5-12.5L31 25l-.3-14.1-5.2 13.6-3-14.5-3 14.5-5.2-13.6L14 25 6.5 13.5 9 26z\" stroke-linecap=\"butt\"/><path d=\"M9 26c0 2 1.5 2 2.5 4 1 1.5 1 1 .5 3.5-1.5 1-1.5 2.5-1.5 2.5-1.5 1.5.5 2.5.5 2.5 6.5 1 16.5 1 23 0 0 0 1.5-1 0-2.5 0 0 .5-1.5-1-2.5-.5-2.5-.5-2 .5-3.5 1-2 2.5-2 2.5-4-8.5-1.5-18.5-1.5-27 0z\" stroke-linecap=\"butt\"/><path d=\"M11 38.5a35 35 1 0 0 23 0\" fill=\"none\" stroke-linecap=\"butt\"/><path d=\"M11 29a35 35 1 0 1 23 0m-21.5 2.5h20m-21 3a35 35 1 0 0 22 0m-23 3a35 35 1 0 0 24 0\" fill=\"none\" stroke=\"#ececec\"/></g>"; break;
- case 'r': s = "<g fill-rule=\"evenodd\" stroke=\"#000\" stroke-width=\"1.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M9 39h27v-3H9v3zm3.5-7l1.5-2.5h17l1.5 2.5h-20zm-.5 4v-4h21v4H12z\" stroke-linecap=\"butt\"/><path d=\"M14 29.5v-13h17v13H14z\" stroke-linecap=\"butt\" stroke-linejoin=\"miter\"/><path d=\"M14 16.5L11 14h23l-3 2.5H14zM11 14V9h4v2h5V9h5v2h5V9h4v5H11z\" stroke-linecap=\"butt\"/><path d=\"M12 35.5h21m-20-4h19m-18-2h17m-17-13h17M11 14h23\" fill=\"none\" stroke=\"#ececec\" stroke-width=\"1\" stroke-linejoin=\"miter\"/></g>"; break;
- case 'b': s = "<g fill=\"none\" fill-rule=\"evenodd\" stroke=\"#000\" stroke-width=\"1.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><g fill=\"#000\" stroke-linecap=\"butt\"><path d=\"M9 36c3.39-.97 10.11.43 13.5-2 3.39 2.43 10.11 1.03 13.5 2 0 0 1.65.54 3 2-.68.97-1.65.99-3 .5-3.39-.97-10.11.46-13.5-1-3.39 1.46-10.11.03-13.5 1-1.354.49-2.323.47-3-.5 1.354-1.94 3-2 3-2z\"/><path d=\"M15 32c2.5 2.5 12.5 2.5 15 0 .5-1.5 0-2 0-2 0-2.5-2.5-4-2.5-4 5.5-1.5 6-11.5-5-15.5-11 4-10.5 14-5 15.5 0 0-2.5 1.5-2.5 4 0 0-.5.5 0 2z\"/><path d=\"M25 8a2.5 2.5 0 1 1-5 0 2.5 2.5 0 1 1 5 0z\"/></g><path d=\"M17.5 26h10M15 30h15m-7.5-14.5v5M20 18h5\" stroke=\"#ececec\" stroke-linejoin=\"miter\"/></g>"; break;
- case 'n': s = "<g fill=\"none\" fill-rule=\"evenodd\" stroke=\"#000\" stroke-width=\"1.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M22 10c10.5 1 16.5 8 16 29H15c0-9 10-6.5 8-21\" fill=\"#000\"/><path d=\"M24 18c.38 2.91-5.55 7.37-8 9-3 2-2.82 4.34-5 4-1.042-.94 1.41-3.04 0-3-1 0 .19 1.23-1 2-1 0-4.003 1-4-4 0-2 6-12 6-12s1.89-1.9 2-3.5c-.73-.994-.5-2-.5-3 1-1 3 2.5 3 2.5h2s.78-1.992 2.5-3c1 0 1 3 1 3\" fill=\"#000\"/><path d=\"M9.5 25.5a.5.5 0 1 1-1 0 .5.5 0 1 1 1 0zm5.433-9.75a.5 1.5 30 1 1-.866-.5.5 1.5 30 1 1 .866.5z\" fill=\"#ececec\" stroke=\"#ececec\"/><path d=\"M24.55 10.4l-.45 1.45.5.15c3.15 1 5.65 2.49 7.9 6.75S35.75 29.06 35.25 39l-.05.5h2.25l.05-.5c.5-10.06-.88-16.85-3.25-21.34-2.37-4.49-5.79-6.64-9.19-7.16l-.51-.1z\" fill=\"#ececec\" stroke=\"none\"/></g>"; break;
- case 'p': s = "<path d=\"M22.5 9c-2.21 0-4 1.79-4 4 0 .89.29 1.71.78 2.38C17.33 16.5 16 18.59 16 21c0 2.03.94 3.84 2.41 5.03-3 1.06-7.41 5.55-7.41 13.47h23c0-7.92-4.41-12.41-7.41-13.47 1.47-1.19 2.41-3 2.41-5.03 0-2.41-1.33-4.5-3.28-5.62.49-.67.78-1.49.78-2.38 0-2.21-1.79-4-4-4z\" stroke=\"#000\" stroke-width=\"1.5\" stroke-linecap=\"round\"/>"; break;
- }
-
- if (*s)
- fputs(s, stdout);
-}
-
-void
showboardfen(void)
{
int x, y, piece, skip = 0;
@@ -114,7 +99,33 @@ showboardfen(void)
}
void
-showboard(void)
+svg_showpiece(int c)
+{
+ const char *s = "";
+
+ /* lichess default set,
+ extracted from https://github.com/lichess-org/lila/tree/master/public/piece/cburnett */
+ switch (c) {
+ case 'K': s = "<g fill=\"none\" fill-rule=\"evenodd\" stroke=\"#000\" stroke-width=\"1.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M22.5 11.63V6M20 8h5\" stroke-linejoin=\"miter\"/><path d=\"M22.5 25s4.5-7.5 3-10.5c0 0-1-2.5-3-2.5s-3 2.5-3 2.5c-1.5 3 3 10.5 3 10.5\" fill=\"#fff\" stroke-linecap=\"butt\" stroke-linejoin=\"miter\"/><path d=\"M11.5 37c5.5 3.5 15.5 3.5 21 0v-7s9-4.5 6-10.5c-4-6.5-13.5-3.5-16 4V27v-3.5c-3.5-7.5-13-10.5-16-4-3 6 5 10 5 10V37z\" fill=\"#fff\"/><path d=\"M11.5 30c5.5-3 15.5-3 21 0m-21 3.5c5.5-3 15.5-3 21 0m-21 3.5c5.5-3 15.5-3 21 0\"/></g>"; break;
+ case 'Q': s = "<g fill=\"#fff\" fill-rule=\"evenodd\" stroke=\"#000\" stroke-width=\"1.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M8 12a2 2 0 1 1-4 0 2 2 0 1 1 4 0zm16.5-4.5a2 2 0 1 1-4 0 2 2 0 1 1 4 0zM41 12a2 2 0 1 1-4 0 2 2 0 1 1 4 0zM16 8.5a2 2 0 1 1-4 0 2 2 0 1 1 4 0zM33 9a2 2 0 1 1-4 0 2 2 0 1 1 4 0z\"/><path d=\"M9 26c8.5-1.5 21-1.5 27 0l2-12-7 11V11l-5.5 13.5-3-15-3 15-5.5-14V25L7 14l2 12z\" stroke-linecap=\"butt\"/><path d=\"M9 26c0 2 1.5 2 2.5 4 1 1.5 1 1 .5 3.5-1.5 1-1.5 2.5-1.5 2.5-1.5 1.5.5 2.5.5 2.5 6.5 1 16.5 1 23 0 0 0 1.5-1 0-2.5 0 0 .5-1.5-1-2.5-.5-2.5-.5-2 .5-3.5 1-2 2.5-2 2.5-4-8.5-1.5-18.5-1.5-27 0z\" stroke-linecap=\"butt\"/><path d=\"M11.5 30c3.5-1 18.5-1 22 0M12 33.5c6-1 15-1 21 0\" fill=\"none\"/></g>"; break;
+ case 'R': s = "<g fill=\"#fff\" fill-rule=\"evenodd\" stroke=\"#000\" stroke-width=\"1.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M9 39h27v-3H9v3zm3-3v-4h21v4H12zm-1-22V9h4v2h5V9h5v2h5V9h4v5\" stroke-linecap=\"butt\"/><path d=\"M34 14l-3 3H14l-3-3\"/><path d=\"M31 17v12.5H14V17\" stroke-linecap=\"butt\" stroke-linejoin=\"miter\"/><path d=\"M31 29.5l1.5 2.5h-20l1.5-2.5\"/><path d=\"M11 14h23\" fill=\"none\" stroke-linejoin=\"miter\"/></g>"; break;
+ case 'B': s = "<g fill=\"none\" fill-rule=\"evenodd\" stroke=\"#000\" stroke-width=\"1.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><g fill=\"#fff\" stroke-linecap=\"butt\"><path d=\"M9 36c3.39-.97 10.11.43 13.5-2 3.39 2.43 10.11 1.03 13.5 2 0 0 1.65.54 3 2-.68.97-1.65.99-3 .5-3.39-.97-10.11.46-13.5-1-3.39 1.46-10.11.03-13.5 1-1.354.49-2.323.47-3-.5 1.354-1.94 3-2 3-2z\"/><path d=\"M15 32c2.5 2.5 12.5 2.5 15 0 .5-1.5 0-2 0-2 0-2.5-2.5-4-2.5-4 5.5-1.5 6-11.5-5-15.5-11 4-10.5 14-5 15.5 0 0-2.5 1.5-2.5 4 0 0-.5.5 0 2z\"/><path d=\"M25 8a2.5 2.5 0 1 1-5 0 2.5 2.5 0 1 1 5 0z\"/></g><path d=\"M17.5 26h10M15 30h15m-7.5-14.5v5M20 18h5\" stroke-linejoin=\"miter\"/></g>"; break;
+ case 'N': s = "<g fill=\"none\" fill-rule=\"evenodd\" stroke=\"#000\" stroke-width=\"1.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M22 10c10.5 1 16.5 8 16 29H15c0-9 10-6.5 8-21\" fill=\"#fff\"/><path d=\"M24 18c.38 2.91-5.55 7.37-8 9-3 2-2.82 4.34-5 4-1.042-.94 1.41-3.04 0-3-1 0 .19 1.23-1 2-1 0-4.003 1-4-4 0-2 6-12 6-12s1.89-1.9 2-3.5c-.73-.994-.5-2-.5-3 1-1 3 2.5 3 2.5h2s.78-1.992 2.5-3c1 0 1 3 1 3\" fill=\"#fff\"/><path d=\"M9.5 25.5a.5.5 0 1 1-1 0 .5.5 0 1 1 1 0zm5.433-9.75a.5 1.5 30 1 1-.866-.5.5 1.5 30 1 1 .866.5z\" fill=\"#000\"/></g>"; break;
+ case 'P': s = "<path d=\"M22.5 9c-2.21 0-4 1.79-4 4 0 .89.29 1.71.78 2.38C17.33 16.5 16 18.59 16 21c0 2.03.94 3.84 2.41 5.03-3 1.06-7.41 5.55-7.41 13.47h23c0-7.92-4.41-12.41-7.41-13.47 1.47-1.19 2.41-3 2.41-5.03 0-2.41-1.33-4.5-3.28-5.62.49-.67.78-1.49.78-2.38 0-2.21-1.79-4-4-4z\" fill=\"#fff\" stroke=\"#000\" stroke-width=\"1.5\" stroke-linecap=\"round\"/>"; break;
+ case 'k': s = "<g fill=\"none\" fill-rule=\"evenodd\" stroke=\"#000\" stroke-width=\"1.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M22.5 11.63V6\" stroke-linejoin=\"miter\"/><path d=\"M22.5 25s4.5-7.5 3-10.5c0 0-1-2.5-3-2.5s-3 2.5-3 2.5c-1.5 3 3 10.5 3 10.5\" fill=\"#000\" stroke-linecap=\"butt\" stroke-linejoin=\"miter\"/><path d=\"M11.5 37c5.5 3.5 15.5 3.5 21 0v-7s9-4.5 6-10.5c-4-6.5-13.5-3.5-16 4V27v-3.5c-3.5-7.5-13-10.5-16-4-3 6 5 10 5 10V37z\" fill=\"#000\"/><path d=\"M20 8h5\" stroke-linejoin=\"miter\"/><path d=\"M32 29.5s8.5-4 6.03-9.65C34.15 14 25 18 22.5 24.5l.01 2.1-.01-2.1C20 18 9.906 14 6.997 19.85c-2.497 5.65 4.853 9 4.853 9\" stroke=\"#ececec\"/><path d=\"M11.5 30c5.5-3 15.5-3 21 0m-21 3.5c5.5-3 15.5-3 21 0m-21 3.5c5.5-3 15.5-3 21 0\" stroke=\"#ececec\"/></g>"; break;
+ case 'q': s = "<g fill-rule=\"evenodd\" stroke=\"#000\" stroke-width=\"1.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><g stroke=\"none\"><circle cx=\"6\" cy=\"12\" r=\"2.75\"/><circle cx=\"14\" cy=\"9\" r=\"2.75\"/><circle cx=\"22.5\" cy=\"8\" r=\"2.75\"/><circle cx=\"31\" cy=\"9\" r=\"2.75\"/><circle cx=\"39\" cy=\"12\" r=\"2.75\"/></g><path d=\"M9 26c8.5-1.5 21-1.5 27 0l2.5-12.5L31 25l-.3-14.1-5.2 13.6-3-14.5-3 14.5-5.2-13.6L14 25 6.5 13.5 9 26z\" stroke-linecap=\"butt\"/><path d=\"M9 26c0 2 1.5 2 2.5 4 1 1.5 1 1 .5 3.5-1.5 1-1.5 2.5-1.5 2.5-1.5 1.5.5 2.5.5 2.5 6.5 1 16.5 1 23 0 0 0 1.5-1 0-2.5 0 0 .5-1.5-1-2.5-.5-2.5-.5-2 .5-3.5 1-2 2.5-2 2.5-4-8.5-1.5-18.5-1.5-27 0z\" stroke-linecap=\"butt\"/><path d=\"M11 38.5a35 35 1 0 0 23 0\" fill=\"none\" stroke-linecap=\"butt\"/><path d=\"M11 29a35 35 1 0 1 23 0m-21.5 2.5h20m-21 3a35 35 1 0 0 22 0m-23 3a35 35 1 0 0 24 0\" fill=\"none\" stroke=\"#ececec\"/></g>"; break;
+ case 'r': s = "<g fill-rule=\"evenodd\" stroke=\"#000\" stroke-width=\"1.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M9 39h27v-3H9v3zm3.5-7l1.5-2.5h17l1.5 2.5h-20zm-.5 4v-4h21v4H12z\" stroke-linecap=\"butt\"/><path d=\"M14 29.5v-13h17v13H14z\" stroke-linecap=\"butt\" stroke-linejoin=\"miter\"/><path d=\"M14 16.5L11 14h23l-3 2.5H14zM11 14V9h4v2h5V9h5v2h5V9h4v5H11z\" stroke-linecap=\"butt\"/><path d=\"M12 35.5h21m-20-4h19m-18-2h17m-17-13h17M11 14h23\" fill=\"none\" stroke=\"#ececec\" stroke-width=\"1\" stroke-linejoin=\"miter\"/></g>"; break;
+ case 'b': s = "<g fill=\"none\" fill-rule=\"evenodd\" stroke=\"#000\" stroke-width=\"1.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><g fill=\"#000\" stroke-linecap=\"butt\"><path d=\"M9 36c3.39-.97 10.11.43 13.5-2 3.39 2.43 10.11 1.03 13.5 2 0 0 1.65.54 3 2-.68.97-1.65.99-3 .5-3.39-.97-10.11.46-13.5-1-3.39 1.46-10.11.03-13.5 1-1.354.49-2.323.47-3-.5 1.354-1.94 3-2 3-2z\"/><path d=\"M15 32c2.5 2.5 12.5 2.5 15 0 .5-1.5 0-2 0-2 0-2.5-2.5-4-2.5-4 5.5-1.5 6-11.5-5-15.5-11 4-10.5 14-5 15.5 0 0-2.5 1.5-2.5 4 0 0-.5.5 0 2z\"/><path d=\"M25 8a2.5 2.5 0 1 1-5 0 2.5 2.5 0 1 1 5 0z\"/></g><path d=\"M17.5 26h10M15 30h15m-7.5-14.5v5M20 18h5\" stroke=\"#ececec\" stroke-linejoin=\"miter\"/></g>"; break;
+ case 'n': s = "<g fill=\"none\" fill-rule=\"evenodd\" stroke=\"#000\" stroke-width=\"1.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M22 10c10.5 1 16.5 8 16 29H15c0-9 10-6.5 8-21\" fill=\"#000\"/><path d=\"M24 18c.38 2.91-5.55 7.37-8 9-3 2-2.82 4.34-5 4-1.042-.94 1.41-3.04 0-3-1 0 .19 1.23-1 2-1 0-4.003 1-4-4 0-2 6-12 6-12s1.89-1.9 2-3.5c-.73-.994-.5-2-.5-3 1-1 3 2.5 3 2.5h2s.78-1.992 2.5-3c1 0 1 3 1 3\" fill=\"#000\"/><path d=\"M9.5 25.5a.5.5 0 1 1-1 0 .5.5 0 1 1 1 0zm5.433-9.75a.5 1.5 30 1 1-.866-.5.5 1.5 30 1 1 .866.5z\" fill=\"#ececec\" stroke=\"#ececec\"/><path d=\"M24.55 10.4l-.45 1.45.5.15c3.15 1 5.65 2.49 7.9 6.75S35.75 29.06 35.25 39l-.05.5h2.25l.05-.5c.5-10.06-.88-16.85-3.25-21.34-2.37-4.49-5.79-6.64-9.19-7.16l-.51-.1z\" fill=\"#ececec\" stroke=\"none\"/></g>"; break;
+ case 'p': s = "<path d=\"M22.5 9c-2.21 0-4 1.79-4 4 0 .89.29 1.71.78 2.38C17.33 16.5 16 18.59 16 21c0 2.03.94 3.84 2.41 5.03-3 1.06-7.41 5.55-7.41 13.47h23c0-7.92-4.41-12.41-7.41-13.47 1.47-1.19 2.41-3 2.41-5.03 0-2.41-1.33-4.5-3.28-5.62.49-.67.78-1.49.78-2.38 0-2.21-1.79-4-4-4z\" stroke=\"#000\" stroke-width=\"1.5\" stroke-linecap=\"round\"/>"; break;
+ }
+
+ if (*s)
+ fputs(s, stdout);
+}
+
+void
+svg_showboard(void)
{
/* lichess default theme colors */
const char *darksquare = "#b58863";
@@ -153,7 +164,7 @@ showboard(void)
piece = getpiece(x, y);
if (piece) {
printf("<g transform=\"translate(%d %d)\">", x * 45, y * 45);
- showpiece(piece);
+ svg_showpiece(piece);
fputs("</g>\n", stdout);
}
}
@@ -183,18 +194,191 @@ showboard(void)
fputs("</svg>\n", stdout);
}
-int
-isvalidpiece(int c)
+void
+tty_showpiece(int c)
{
- static char pieces[] = "PNBRQKpnbrqk";
+ const char *s = "";
- return strchr(pieces, c) ? 1 : 0;
+ /* simple or use unicode character */
+#if 0
+ putchar(c);
+ return;
+#endif
+
+ switch (c) {
+ case 'K': s = "♔"; break;
+ case 'Q': s = "♕"; break;
+ case 'R': s = "♖"; break;
+ case 'B': s = "♗"; break;
+ case 'N': s = "♘"; break;
+ case 'P': s = "♙"; break;
+ case 'k': s = "♚"; break;
+ case 'q': s = "♛"; break;
+ case 'r': s = "♜"; break;
+ case 'b': s = "♝"; break;
+ case 'n': s = "♞"; break;
+ case 'p': s = "♟"; break;
+ }
+
+ if (*s)
+ fputs(s, stdout);
+}
+
+/* show board */
+void
+tty_showboard(void)
+{
+ int *color;
+ int border[] = { 0x70, 0x49, 0x2d };
+ int darksquare[] = { 0xb5, 0x88, 0x63 };
+ int lightsquare[] = { 0xf0, 0xd9, 0xb5 };
+ int darksquarehi[] = { 0xaa, 0xa2, 0x3a };
+ int lightsquarehi[] = { 0xcd, 0xd2, 0x6a };
+ int x, y, piece;
+
+ printf("Board FEN:\n");
+ showboardfen();
+ printf("\n\n");
+
+ SETFGCOLOR(0x00, 0x00, 0x00);
+
+ color = border;
+ SETBGCOLOR(color[0], color[1], color[2]);
+ SETFGCOLOR(0xff, 0xff, 0xff);
+ fputs(" ", stdout);
+ printf("\x1b[0m"); /* reset */
+ SETFGCOLOR(0x00, 0x00, 0x00);
+ putchar('\n');
+
+ for (y = 0; y < 8; y++) {
+ color = border;
+ SETBGCOLOR(color[0], color[1], color[2]);
+ SETFGCOLOR(0xff, 0xff, 0xff);
+ fputs(" ", stdout);
+
+ for (x = 0; x < 8; x++) {
+ if (x % 2 == 0) {
+ if (y % 2 == 0)
+ color = highlight[y][x] ? lightsquarehi : lightsquare;
+ else
+ color = highlight[y][x] ? darksquarehi : darksquare;
+ } else {
+ if (y % 2 == 0)
+ color = highlight[y][x] ? darksquarehi : darksquare;
+ else
+ color = highlight[y][x] ? lightsquarehi : lightsquare;
+ }
+ SETBGCOLOR(color[0], color[1], color[2]);
+
+ fputs(" ", stdout);
+ piece = getpiece(x, y);
+ if (piece) {
+ if (piece >= 'A' && piece <= 'Z')
+ SETFGCOLOR(0xff, 0xff, 0xff);
+ else
+ SETFGCOLOR(0x00, 0x00, 0x00);
+ /* workaround: use black chess symbol, because the color
+ is filled and better visible */
+ tty_showpiece(tolower(piece));
+ } else {
+ fputs(" ", stdout);
+ }
+ fputs(" ", stdout);
+ }
+ printf("\x1b[0m"); /* reset */
+
+ color = border;
+ SETBGCOLOR(color[0], color[1], color[2]);
+ SETFGCOLOR(0xff, 0xff, 0xff);
+ if (showcoords) {
+ putchar(' ');
+ putchar('8' - y);
+ putchar(' ');
+ } else {
+ fputs(" ", stdout);
+ }
+
+ printf("\x1b[0m"); /* reset */
+ SETFGCOLOR(0x00, 0x00, 0x00);
+ putchar('\n');
+ }
+ color = border;
+ SETBGCOLOR(color[0], color[1], color[2]);
+ SETFGCOLOR(0xff, 0xff, 0xff);
+ if (showcoords)
+ fputs(" a b c d e f g h ", stdout);
+ else
+ fputs(" ", stdout);
+ printf("\x1b[0m"); /* reset */
+ printf("\n");
+ printf("\x1b[0m"); /* reset */
+}
+
+void
+ascii_showpiece(int c)
+{
+ putchar(c);
+}
+
+/* show board */
+/* TODO: show fancier, unicode and background square color */
+/* TODO: use the output format similar to stockfish "d" command */
+void
+ascii_showboard(void)
+{
+ int x, y, piece;
+
+ printf("Board FEN:\n");
+ showboardfen();
+ printf("\n\n");
+
+ for (y = 0; y < 8; y++) {
+ printf("+---+---+---+---+---+---+---+---+\n");
+ for (x = 0; x < 8; x++) {
+ if (x == 0)
+ putchar('|');
+ fputs(" ", stdout);
+ piece = getpiece(x, y);
+ if (piece)
+ ascii_showpiece(piece);
+ else
+ fputs(" ", stdout);
+ fputs(" ", stdout);
+ putchar('|');
+ }
+ if (showcoords) {
+ putchar(' ');
+ putchar('8' - y);
+ }
+ putchar('\n');
+ }
+ printf("+---+---+---+---+---+---+---+---+\n");
+ if (showcoords)
+ printf(" a | b | c | d | e | f | g | h |\n");
+
+ fputs("\n", stdout);
+
+#if 0
+ if (side_to_move == 'w') {
+ fputs("White to move\n", stdout);
+ } else if (side_to_move == 'b')
+ fputs("Black to move\n", stdout);
+
+ if (white_can_castle[0])
+ fputs("White can castle king side\n", stdout);
+ if (white_can_castle[1])
+ fputs("White can castle queen side\n", stdout);
+ if (black_can_castle[0])
+ fputs("Black can castle king side\n", stdout);
+ if (black_can_castle[1])
+ fputs("Black can castle queen side\n", stdout);
+#endif
}
int
main(int argc, char *argv[])
{
- const char *fen, *moves, *s;
+ const char *progname, *fen, *moves, *s;
int x, y, x2, y2, field, piece;
char square[3];
@@ -337,7 +521,15 @@ main(int argc, char *argv[])
/* highlight last move */
highlightmove(x, y, x2, y2);
- showboard();
+ progname = argv[0] ? argv[0] : "fen_to_svg";
+ if ((s = strrchr(progname, '/')))
+ progname = s + 1;
+ if (!strcmp(progname, "fen_to_ascii"))
+ ascii_showboard();
+ else if (!strcmp(progname, "fen_to_tty"))
+ tty_showboard();
+ else
+ svg_showboard();
return 0;
}
diff --git a/fen_to_tty.c b/fen_to_tty.c
@@ -1,346 +0,0 @@
-/* TODO: option to flip board? */
-
-#include <ctype.h>
-#include <stdio.h>
-#include <string.h>
-
-static char board[8][8];
-static char highlight[8][8];
-
-static int side_to_move = 'w'; /* default: white to move */
-static int white_can_castle[2] = { 0, 0 }; /* allow king side, allow queen side */
-static int black_can_castle[2] = { 0, 0 }; /* allow king side, allow queen side */
-
-static const int showcoords = 1; /* config: show board coordinates? */
-
-#define SETFGCOLOR(r,g,b) printf("\x1b[38;2;%d;%d;%dm", r, g, b)
-#define SETBGCOLOR(r,g,b) printf("\x1b[48;2;%d;%d;%dm", r, g, b)
-
-int
-isvalidsquare(int x, int y)
-{
- return !(x < 0 || x >= 8 || y < 0 || y >= 8);
-}
-
-/* place a piece, if possible */
-void
-place(int piece, int x, int y)
-{
- if (!isvalidsquare(x, y))
- return;
-
- board[y][x] = piece;
-}
-
-/* get piece, if possible */
-int
-getpiece(int x, int y)
-{
- if (!isvalidsquare(x, y))
- return 0;
- return board[y][x];
-}
-
-int
-squaretoxy(const char *s, int *x, int *y)
-{
- if (*s >= 'a' && *s <= 'h' &&
- *(s + 1) >= '1' && *(s + 1) <= '8') {
- *x = *s - 'a';
- *y = '8' - *(s + 1);
- return 1;
- }
- return 0;
-}
-
-void
-highlightmove(int x1, int y1, int x2, int y2)
-{
- if (isvalidsquare(x1, y1))
- highlight[y1][x1] = 1;
-
- if (isvalidsquare(x2, y2))
- highlight[y2][x2] = 1;
-}
-
-void
-showpiece(int c)
-{
- const char *s = "";
-
- /* simple or use unicode character */
-#if 0
- putchar(c);
- return;
-#endif
-
- switch (c) {
- case 'K': s = "♔"; break;
- case 'Q': s = "♕"; break;
- case 'R': s = "♖"; break;
- case 'B': s = "♗"; break;
- case 'N': s = "♘"; break;
- case 'P': s = "♙"; break;
- case 'k': s = "♚"; break;
- case 'q': s = "♛"; break;
- case 'r': s = "♜"; break;
- case 'b': s = "♝"; break;
- case 'n': s = "♞"; break;
- case 'p': s = "♟"; break;
- }
-
- if (*s)
- fputs(s, stdout);
-}
-
-void
-showboardfen(void)
-{
- int x, y, piece, skip = 0;
-
- for (y = 0; y < 8; y++) {
- if (y > 0)
- putchar('/');
- skip = 0;
- for (x = 0; x < 8; x++) {
- piece = getpiece(x, y);
- if (piece) {
- if (skip)
- putchar(skip + '0');
- putchar(piece);
- skip = 0;
- } else {
- skip++;
- }
- }
- if (skip)
- putchar(skip + '0');
- }
-
- /* ? TODO: detect en passant, invalid castling etc? */
-}
-
-/* show board */
-void
-showboard(void)
-{
- int *color;
- int border[] = { 0x70, 0x49, 0x2d };
- int darksquare[] = { 0xb5, 0x88, 0x63 };
- int lightsquare[] = { 0xf0, 0xd9, 0xb5 };
- int darksquarehi[] = { 0xaa, 0xa2, 0x3a };
- int lightsquarehi[] = { 0xcd, 0xd2, 0x6a };
- int x, y, piece;
-
- printf("Board FEN:\n");
- showboardfen();
- printf("\n\n");
-
- SETFGCOLOR(0x00, 0x00, 0x00);
-
- color = border;
- SETBGCOLOR(color[0], color[1], color[2]);
- SETFGCOLOR(0xff, 0xff, 0xff);
- fputs(" ", stdout);
- printf("\x1b[0m"); /* reset */
- SETFGCOLOR(0x00, 0x00, 0x00);
- putchar('\n');
-
- for (y = 0; y < 8; y++) {
- color = border;
- SETBGCOLOR(color[0], color[1], color[2]);
- SETFGCOLOR(0xff, 0xff, 0xff);
- fputs(" ", stdout);
-
- for (x = 0; x < 8; x++) {
- if (x % 2 == 0) {
- if (y % 2 == 0)
- color = highlight[y][x] ? lightsquarehi : lightsquare;
- else
- color = highlight[y][x] ? darksquarehi : darksquare;
- } else {
- if (y % 2 == 0)
- color = highlight[y][x] ? darksquarehi : darksquare;
- else
- color = highlight[y][x] ? lightsquarehi : lightsquare;
- }
- SETBGCOLOR(color[0], color[1], color[2]);
-
- fputs(" ", stdout);
- piece = getpiece(x, y);
- if (piece) {
- if (piece >= 'A' && piece <= 'Z')
- SETFGCOLOR(0xff, 0xff, 0xff);
- else
- SETFGCOLOR(0x00, 0x00, 0x00);
- /* workaround: use black chess symbol, because the color
- is filled and better visible */
- showpiece(tolower(piece));
- } else {
- fputs(" ", stdout);
- }
- fputs(" ", stdout);
- }
- printf("\x1b[0m"); /* reset */
-
- color = border;
- SETBGCOLOR(color[0], color[1], color[2]);
- SETFGCOLOR(0xff, 0xff, 0xff);
- if (showcoords) {
- putchar(' ');
- putchar('8' - y);
- putchar(' ');
- } else {
- fputs(" ", stdout);
- }
-
- printf("\x1b[0m"); /* reset */
- SETFGCOLOR(0x00, 0x00, 0x00);
- putchar('\n');
- }
- color = border;
- SETBGCOLOR(color[0], color[1], color[2]);
- SETFGCOLOR(0xff, 0xff, 0xff);
- if (showcoords)
- fputs(" a b c d e f g h ", stdout);
- else
- fputs(" ", stdout);
- printf("\x1b[0m"); /* reset */
- printf("\n");
- printf("\x1b[0m"); /* reset */
-
-#if 0
- if (side_to_move == 'w') {
- fputs("White to move\n", stdout);
- } else if (side_to_move == 'b')
- fputs("Black to move\n", stdout);
-
- if (white_can_castle[0])
- fputs("White can castle king side\n", stdout);
- if (white_can_castle[1])
- fputs("White can castle queen side\n", stdout);
- if (black_can_castle[0])
- fputs("Black can castle king side\n", stdout);
- if (black_can_castle[1])
- fputs("Black can castle queen side\n", stdout);
-#endif
-}
-
-int
-main(int argc, char *argv[])
-{
- const char *fen, *moves, *s;
- int x, y, x2, y2, field, piece;
- char pieces[] = "PNBRQKpnbrqk", square[3];
-
- if (argc != 3) {
- fprintf(stderr, "usage: %s <FEN> <moves>\n", argv[0]);
- return 1;
- }
-
- fen = argv[1];
- moves = argv[2];
-
- /* initial board state, FEN format */
- x = y = field = 0;
- for (s = fen; *s; s++) {
- /* next field, fields are: piece placement data, active color,
- Castling availability, En passant target square,
- Halfmove clock, Fullmove number */
- if (*s == ' ') {
- field++;
- continue;
- }
-
- switch (field) {
- case 0: /* piece placement data */
- /* skip square */
- if (*s >= '1' && *s <= '9') {
- x += (*s - '0');
- continue;
- }
- /* next rank */
- if (*s == '/') {
- x = 0;
- y++;
- continue;
- }
- /* is piece? place it */
- if (strchr(pieces, *s))
- place(*s, x++, y);
- break;
- case 1: /* active color */
- if (*s == 'w' || *s == 'b')
- side_to_move = *s;
- break;
- case 2: /* castling availability */
- if (*s == '-') {
- white_can_castle[0] = 0;
- white_can_castle[1] = 0;
- black_can_castle[0] = 0;
- black_can_castle[1] = 0;
- } else if (*s == 'K') {
- white_can_castle[0] = 1;
- } else if (*s == 'Q') {
- white_can_castle[1] = 1;
- } else if (*s == 'k') {
- black_can_castle[0] = 1;
- } else if (*s == 'q') {
- black_can_castle[1] = 1;
- }
- break;
- case 3: /* TODO: en-passant square, rest of the fields */
- break;
- }
- /* TODO: parse which side to move, en-passant, etc */
- }
-
- /* process moves */
- square[2] = '\0';
- x = y = x2 = y2 = -1;
- for (s = moves; *s; s++) {
- if (*s == ' ')
- continue;
- if ((*s >= 'a' && *s <= 'h') &&
- (*(s + 1) >= '1' && *(s + 1) <= '8') &&
- (*(s + 2) >= 'a' && *(s + 2) <= 'h') &&
- (*(s + 3) >= '1' && *(s + 3) <= '8')) {
- square[0] = *s;
- square[1] = *(s + 1);
-
- s += 2;
- squaretoxy(square, &x, &y);
- piece = getpiece(x, y);
-
- place(0, x, y); /* clear square */
-
- /* place piece at new location */
- square[0] = *s;
- square[1] = *(s + 1);
- squaretoxy(square, &x2, &y2);
- place(piece, x2, y2);
- s += 2;
-
- /* possible promotion? (queen, knight, bishop) */
- if (*s == 'q' || *s == 'n' || *s == 'b') {
- if (side_to_move == 'w')
- piece = toupper(*s);
- else
- piece = *s;
- place(piece, x2, y2);
- s++;
- }
-
- /* switch which side it is to move */
- side_to_move = side_to_move == 'b' ? 'w' : 'b';
- }
- }
- /* highlight last move */
- highlightmove(x, y, x2, y2);
-
- showboard();
-
- printf("\x1b[0m"); /* reset */
-
- return 0;
-}
