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-rw-r--r--FICS/algcheck.c314
1 files changed, 175 insertions, 139 deletions
diff --git a/FICS/algcheck.c b/FICS/algcheck.c
index 10fad0c..d11bf29 100644
--- a/FICS/algcheck.c
+++ b/FICS/algcheck.c
@@ -23,11 +23,12 @@
*/
#include "stdinclude.h"
-
#include "common.h"
+
#include "algcheck.h"
-#include "movecheck.h"
#include "board.h"
+#include "maxxes-utils.h"
+#include "movecheck.h"
#include "utils.h"
/* Well, lets see if I can list the possibilities
@@ -318,148 +319,183 @@ PUBLIC char *alg_unparse( game_state_t *gs, move_t *mt )
}
*/
+/*
+ * Soso: Rewrote the alg_unparse() function.
+ *
+ * Algebraic deparser - sets the 'mStr' variable with move description
+ * in short notation. Used in last move report and in 'moves' command.
+ */
+PUBLIC char *
+alg_unparse(game_state_t *gs, move_t * mt)
+{
+ char tmp[20] = { '\0' };
+ game_state_t fakeMove;
+ int ambig, r_ambig, f_ambig;
+ int piece, f, r;
+ static char mStr[20] = { '\0' };
+
+ if (mt->fromFile == ALG_DROP) {
+ piece = mt->fromRank;
+ } else {
+ piece = piecetype(gs->board[mt->fromFile][mt->fromRank]);
+ }
-/* A assumes the move has yet to be made on the board */
+ if ((piece == KING) && ((mt->fromFile == 4) && (mt->toFile == 6))) {
+ mstrlcpy(mStr, "O-O", sizeof mStr);
+ goto check;
+ }
+ if ((piece == KING) && ((mt->fromFile == 4) && (mt->toFile == 2))) {
+ mstrlcpy(mStr, "O-O-O", sizeof mStr);
+ goto check;
+ }
+ mstrlcpy(mStr, "", sizeof mStr);
-/* Soso: rewrote alg_unparse function.
- * Algebraic deparser - sets the mStr variable with move description
- * in short notation. Used in last move report and in 'moves' command.
- */
+ switch (piece) {
+ case PAWN:
+ if (mt->fromFile == ALG_DROP) {
+ mstrlcpy(mStr, "P", sizeof mStr);
+ } else if (mt->fromFile != mt->toFile) {
+ msnprintf(tmp, sizeof tmp, "%c", mt->fromFile + 'a');
+ mstrlcpy(mStr, tmp, sizeof mStr);
+ }
+ break;
+ case KNIGHT:
+ mstrlcpy(mStr, "N", sizeof mStr);
+ break;
+ case BISHOP:
+ mstrlcpy(mStr, "B", sizeof mStr);
+ break;
+ case ROOK:
+ mstrlcpy(mStr, "R", sizeof mStr);
+ break;
+ case QUEEN:
+ mstrlcpy(mStr, "Q", sizeof mStr);
+ break;
+ case KING:
+ mstrlcpy(mStr, "K", sizeof mStr);
+ break;
+ default:
+ mstrlcpy(mStr, "", sizeof mStr);
+ break;
+ }
-PUBLIC char *alg_unparse(game_state_t * gs, move_t * mt)
-{
- static char mStr[20];
- char tmp[20];
- int piece, f, r;
- int ambig, r_ambig, f_ambig;
- game_state_t fakeMove;
-
- if (mt->fromFile == ALG_DROP) {
- piece = mt->fromRank;
- } else {
- piece = piecetype(gs->board[mt->fromFile][mt->fromRank]);
- }
+ if (mt->fromFile == ALG_DROP) {
+ mstrlcat(mStr, DROP_STR, sizeof mStr);
+ } else {
+ /*
+ * Checks for ambiguity in short notation (Ncb3, R8e8
+ * or so).
+ */
+ if (piece != PAWN) {
+ ambig = r_ambig = f_ambig = 0;
- if ((piece == KING) && ((mt->fromFile == 4) && (mt->toFile == 6))) {
- strcpy(mStr, "O-O");
- goto check;
- }
- if ((piece == KING) && ((mt->fromFile == 4) && (mt->toFile == 2))) {
- strcpy(mStr, "O-O-O");
- goto check;
- }
- strcpy(mStr, "");
- switch (piece) {
- case PAWN:
- if (mt->fromFile == ALG_DROP) {
- strcpy(mStr,"P");
- } else if (mt->fromFile != mt->toFile) {
- sprintf(tmp, "%c", mt->fromFile + 'a');
- strcpy(mStr, tmp);
- }
- break;
- case KNIGHT:
- strcpy(mStr, "N");
- break;
- case BISHOP:
- strcpy(mStr, "B");
- break;
- case ROOK:
- strcpy(mStr, "R");
- break;
- case QUEEN:
- strcpy(mStr, "Q");
- break;
- case KING:
- strcpy(mStr, "K");
- break;
- default:
- strcpy(mStr, "");
- break;
- }
+ for (r = 0; r < 8; r++) {
+ for (f = 0; f < 8; f++) {
+ if ((gs->board[f][r] != NOPIECE) &&
+ iscolor(gs->board[f][r], gs->onMove) &&
+ (piecetype(gs->board[f][r]) == piece) &&
+ ((f != mt->fromFile) ||
+ (r != mt->fromRank))) {
+ if (legal_move(gs, f, r,
+ mt->toFile, mt->toRank)) {
+ fakeMove = *gs;
+ fakeMove.board[f][r] =
+ NOPIECE;
+ fakeMove.onMove =
+ CToggle(fakeMove.onMove);
+ gs->onMove =
+ CToggle(gs->onMove);
- if (mt->fromFile == ALG_DROP) {
- strcat(mStr, DROP_STR);
- } else {
- /* Checks for ambiguity in short notation ( Ncb3, R8e8 or so) */
- if (piece != PAWN) {
- ambig = r_ambig = f_ambig = 0;
- for (r = 0; r < 8; r++)
- for (f = 0; f < 8; f++) {
- if ((gs->board[f][r] != NOPIECE) && iscolor(gs->board[f][r], gs->onMove)
- && (piecetype(gs->board[f][r]) == piece) &&
- ((f != mt->fromFile) || (r != mt->fromRank))) {
- if (legal_move(gs, f, r, mt->toFile, mt->toRank)) {
- fakeMove = *gs;
- fakeMove.board[f][r] = NOPIECE;
- fakeMove.onMove = CToggle(fakeMove.onMove);
- gs->onMove = CToggle(gs->onMove);
-
- /* New bracketing below to try to fix 'ambiguous move' bug. */
- if ((in_check(gs)) || !in_check(&fakeMove)) {
- ambig++;
- }
- if (f == mt->fromFile) {
- f_ambig++;
- ambig++;
- }
- if (r == mt->fromRank) {
- r_ambig++;
- ambig++;
- }
- gs->onMove = CToggle(gs->onMove);
- }
+ /*
+ * New
+ * bracketing
+ * below to
+ * try to fix
+ * 'ambiguous
+ * move' bug.
+ */
+ if ((in_check(gs)) ||
+ !in_check(&fakeMove))
+ ambig++;
+
+ if (f == mt->fromFile) {
+ f_ambig++;
+ ambig++;
+ }
+ if (r == mt->fromRank) {
+ r_ambig++;
+ ambig++;
+ }
+
+ gs->onMove =
+ CToggle(gs->onMove);
+ }
+ }
+ } /* for */
+ } /* for */
+
+ if (ambig > 0) {
+ /*
+ * Ambiguity in short notation, need
+ * to add file, rank or _both_ in
+ * notation.
+ */
+
+ if (f_ambig == 0) {
+ msnprintf(tmp, sizeof tmp, "%c",
+ mt->fromFile + 'a');
+ mstrlcat(mStr, tmp, sizeof mStr);
+ } else if (r_ambig == 0) {
+ msnprintf(tmp, sizeof tmp, "%d",
+ mt->fromRank + 1);
+ mstrlcat(mStr, tmp, sizeof mStr);
+ } else {
+ msnprintf(tmp, sizeof tmp, "%c%d",
+ mt->fromFile + 'a',
+ mt->fromRank + 1);
+ mstrlcat(mStr, tmp, sizeof mStr);
+ }
+ }
+ }
+
+ if ((gs->board[mt->toFile][mt->toRank] != NOPIECE) ||
+ ((piece == PAWN) && (mt->fromFile != mt->toFile))) {
+ mstrlcat(mStr, "x", sizeof mStr);
+ }
}
- }
- if (ambig > 0) {
- /* Ambiguity in short notation, need to add file,rank or _both_ in
- notation */
- if (f_ambig == 0) {
- sprintf(tmp, "%c", mt->fromFile + 'a');
- strcat(mStr, tmp);
- } else if (r_ambig == 0) {
- sprintf(tmp, "%d", mt->fromRank + 1);
- strcat(mStr, tmp);
- } else {
- sprintf(tmp, "%c%d", mt->fromFile + 'a', mt->fromRank + 1);
- strcat(mStr, tmp);
- }
- }
- }
- if ((gs->board[mt->toFile][mt->toRank] != NOPIECE) ||
- ((piece == PAWN) && (mt->fromFile != mt->toFile))) {
- strcat(mStr, "x");
- }
- }
- sprintf(tmp, "%c%d", mt->toFile + 'a', mt->toRank + 1);
- strcat(mStr, tmp);
-
- if ((piece == PAWN) && (mt->piecePromotionTo != NOPIECE)) {
- strcat(mStr, "="); /* = before promoting piece */
- switch (piecetype(mt->piecePromotionTo)) {
- case KNIGHT:
- strcat(mStr, "N");
- break;
- case BISHOP:
- strcat(mStr, "B");
- break;
- case ROOK:
- strcat(mStr, "R");
- break;
- case QUEEN:
- strcat(mStr, "Q");
- break;
- default:
- break;
- }
- }
-check:;
- fakeMove = *gs;
- execute_move(&fakeMove, mt, 0);
- fakeMove.onMove = CToggle(fakeMove.onMove);
- if (in_check(&fakeMove)) {
- strcat(mStr, "+");
- }
- return mStr;
+
+ msnprintf(tmp, sizeof tmp, "%c%d", mt->toFile + 'a', mt->toRank + 1);
+ mstrlcat(mStr, tmp, sizeof mStr);
+
+ if ((piece == PAWN) && (mt->piecePromotionTo != NOPIECE)) {
+ mstrlcat(mStr, "=", sizeof mStr); // = before promoting piece
+
+ switch (piecetype(mt->piecePromotionTo)) {
+ case KNIGHT:
+ mstrlcat(mStr, "N", sizeof mStr);
+ break;
+ case BISHOP:
+ mstrlcat(mStr, "B", sizeof mStr);
+ break;
+ case ROOK:
+ mstrlcat(mStr, "R", sizeof mStr);
+ break;
+ case QUEEN:
+ mstrlcat(mStr, "Q", sizeof mStr);
+ break;
+ default:
+ break;
+ }
+ }
+
+ check:;
+
+ fakeMove = *gs;
+ execute_move(&fakeMove, mt, 0);
+ fakeMove.onMove = CToggle(fakeMove.onMove);
+
+ if (in_check(&fakeMove))
+ mstrlcat(mStr, "+", sizeof mStr);
+ return mStr;
}
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