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Diffstat (limited to 'gnu/games/chess/Xchess/control.c')
| -rw-r--r-- | gnu/games/chess/Xchess/control.c | 515 |
1 files changed, 0 insertions, 515 deletions
diff --git a/gnu/games/chess/Xchess/control.c b/gnu/games/chess/Xchess/control.c deleted file mode 100644 index 7d23a76..0000000 --- a/gnu/games/chess/Xchess/control.c +++ /dev/null @@ -1,515 +0,0 @@ -/* This file contains code for X-CHESS. - Copyright (C) 1986 Free Software Foundation, Inc. - -This file is part of X-CHESS. - -X-CHESS is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY. No author or distributor -accepts responsibility to anyone for the consequences of using it -or for whether it serves any particular purpose or works at all, -unless he says so in writing. Refer to the X-CHESS General Public -License for full details. - -Everyone is granted permission to copy, modify and redistribute -X-CHESS, but only under the conditions described in the -X-CHESS General Public License. A copy of this license is -supposed to have been given to you along with X-CHESS so you -can know your rights and responsibilities. It should be in a -file named COPYING. Among other things, the copyright notice -and this notice must be preserved on all copies. */ - - -/* RCS Info: $Revision: 1.1.1.1 $ on $Date: 1993/06/12 14:41:11 $ - * $Source: /home/ncvs/src/gnu/games/chess/Xchess/control.c,v $ - * Copyright (c) 1986 Wayne A. Christopher, U. C. Berkeley CAD Group - * Permission is granted to do anything with this code except sell it - * or remove this message. - * - * Deal with input from the user. - */ - -#include "xchess.h" - -move *moves; -move *foremoves; -color nexttomove = WHITE; -bool noisyflag = false; - -move *lastmove; -static move *thismove; - -static void screen_move(); - -void -button_pressed(event, win) - XEvent *event; - windata *win; -{ - int x, y; - XKeyEvent *ev = (XKeyEvent *) event; - - if (!oneboard && (win->color != nexttomove)) { - message_add(win, "Wrong player!\n", true); - return; - } - if (progflag && (nexttomove == (blackflag ? WHITE : BLACK))) { - message_add(win, "Wait for the computer...\n", true); - return; - } - if (loading_flag) { - message_add(win, "You'd better not do that now...\n", true); - return; - } - - /* Figure out what piece he is pointing at. */ - x = ev->x / (SQUARE_WIDTH + BORDER_WIDTH); - y = ev->y / (SQUARE_HEIGHT + BORDER_WIDTH); - - if (win->flipped) { - y = SIZE - y - 1; - x = SIZE - x - 1; - } - - if ((x < 0) || (x >= SIZE) || (y < 0) || (y >= SIZE)) { - fprintf(stderr, "Bad coords (%d, %d)\n", x, y); - return; - } - - if (oneboard && (chessboard->square[y][x].color != nexttomove)) { - message_add(win, "Wrong player!\n", true); - return; - } else if (!oneboard && (chessboard->square[y][x].color != - win->color)) { - message_add(win, "Can't move that\n", true); - return; - } - - thismove = alloc(move); - thismove->fromx = x; - thismove->fromy = y; - thismove->piece.color = chessboard->square[y][x].color; - thismove->piece.type = chessboard->square[y][x].type; - - if (debug) - fprintf(stderr, "%s selected his %s at (%d, %d)...\n", - colornames[(int) thismove->piece.color], - piecenames[(int) thismove->piece.type], - thismove->fromy, thismove->fromx); - return; -} - -void -button_released(event, win) - XEvent *event; - windata *win; -{ - int x, y; - XKeyEvent *ev = (XKeyEvent *) event; - - if (!thismove) { - /* fprintf(stderr, "Error: button hasn't been pressed\n"); */ - return; - } - if (loading_flag) - return; - - /* Figure out what piece he is pointing at. */ - x = ev->x / (SQUARE_WIDTH + BORDER_WIDTH); - y = ev->y / (SQUARE_HEIGHT + BORDER_WIDTH); - - if (win->flipped) { - y = SIZE - y - 1; - x = SIZE - x - 1; - } - - if ((x < 0) || (x >= SIZE) || (y < 0) || (y >= SIZE)) { - fprintf(stderr, "Bad coords (%d, %d)\n", x, y); - return; - } - - if ((thismove->fromx == x) && (thismove->fromy == y)) { - message_add(win, "Hey, you touch it, you move it, buddy.\n", - true); - return; - } - if (chessboard->square[y][x].color == thismove->piece.color) { - message_add(win, "Can't put one piece on top of another\n", - true); - return; - } - - thismove->tox = x; - thismove->toy = y; - thismove->taken.color = chessboard->square[y][x].color; - thismove->taken.type = chessboard->square[y][x].type; - if (thismove->taken.color != NONE) - thismove->type = CAPTURE; - else if ((thismove->piece.type == KING) && (thismove->fromx == 4) && - (thismove->tox == 6) && - (thismove->toy == thismove->fromy)) - thismove->type = KCASTLE; - else if ((thismove->piece.type == KING) && (thismove->tox == 2) && - (thismove->fromx == 4) && - (thismove->toy == thismove->fromy)) - thismove->type = QCASTLE; - else - thismove->type = MOVE; - - /* Now check the en-passant case... */ - if ((thismove->type == MOVE) && ((thismove->tox == thismove->fromx + 1) - || (thismove->tox == thismove->fromx - 1)) && - (thismove->piece.type == PAWN) && lastmove && - (lastmove->tox == lastmove->fromx) && (lastmove->fromx - == thismove->tox) && ((lastmove->fromy + lastmove->toy) - / 2 == thismove->toy)) { - thismove->type = CAPTURE; - thismove->enpassant = true; - thismove->taken = lastmove->piece; - } - - if (!valid_move(thismove, chessboard)) { - message_add(win, "Invalid move.\n", true); - return; - } - - if (debug) - fprintf(stderr, "\t... and moved it to (%d, %d), type %s\n", - thismove->toy, thismove->tox, - movetypenames[(int) thismove->type]); - move_piece(thismove); - - if (thismove->check) { - message_add(win1, "Check.\n", true); - if (!oneboard) { - message_add(win2, "Check.\n", true); - } - } - - if (!moves) - moves = lastmove = thismove; - else - lastmove = lastmove->next = thismove; - - if (progflag) - program_send(thismove); - - thismove = NULL; - nexttomove = ((nexttomove == WHITE) ? BLACK : WHITE); - clock_switch(); - - return; -} - -void -prog_move(m) - move *m; -{ - if (debug) - fprintf(stderr, "program moves from (%d, %d) to (%d, %d)\n", - m->fromy, m->fromx, m->toy, m->tox); - move_piece(m); - - if (!moves) - moves = lastmove = m; - else - lastmove = lastmove->next = m; - - nexttomove = ((nexttomove == WHITE) ? BLACK : WHITE); - clock_switch(); - - return; -} - -void -move_piece(m) - move *m; -{ - /* Update the screen... */ - screen_move(m); - - /* Move the piece on the board... */ - board_move(chessboard, m); - - /* And record it... */ - record_move(m); - - if (noisyflag) { - XBell(win1->display, 50); - XBell(win2->display, 50); - } - return; -} - -static void -screen_move(m) - move *m; -{ - piece pp; - - switch (m->type) { - case CAPTURE: - jail_add(&m->taken); - /* FALLTHRU */ - - case MOVE: - win_erasepiece(m->fromy, m->fromx, WHITE); - if (win_flashmove) - win_flash(m, WHITE); - win_drawpiece(&m->piece, m->toy, m->tox, WHITE); - if (m->enpassant) - win_erasepiece(m->toy + ((m->piece.color == WHITE) ? - 1 : -1), m->tox, WHITE); - if (!oneboard) { - win_erasepiece(m->fromy, m->fromx, BLACK); - if (win_flashmove) - win_flash(m, BLACK); - win_drawpiece(&m->piece, m->toy, m->tox, BLACK); - if (m->enpassant) - win_erasepiece(m->toy + ((m->piece.color == - WHITE) ? 1 : -1), m->tox, WHITE); - } - if ((m->piece.type == PAWN) && (((m->piece.color == BLACK) && - (m->toy == 7)) || ((m->piece.color == WHITE) && - (m->toy == 0)))) { - pp.color = m->piece.color; - pp.type = QUEEN; - win_drawpiece(&pp, m->toy, m->tox, WHITE); - if (!oneboard) - win_drawpiece(&m->piece, m->toy, m->tox, BLACK); - } - break; - - case KCASTLE: - if (m->piece.color == WHITE) { - win_erasepiece(7, 4, WHITE); - win_erasepiece(7, 7, WHITE); - if (win_flashmove) - win_flash(m, WHITE); - win_drawpiece(&m->piece, 7, 6, WHITE); - win_drawpiece(&chessboard->square[7][7], 7, 5, WHITE); - if (!oneboard) { - win_erasepiece(7, 4, BLACK); - win_erasepiece(7, 7, BLACK); - if (win_flashmove) - win_flash(m, BLACK); - win_drawpiece(&m->piece, 7, 6, BLACK); - win_drawpiece(&chessboard->square[7][7], 7, 5, - BLACK); - } - } else { - win_erasepiece(0, 4, WHITE); - win_erasepiece(0, 7, WHITE); - if (win_flashmove) - win_flash(m, WHITE); - win_drawpiece(&m->piece, 0, 6, WHITE); - win_drawpiece(&chessboard->square[0][7], 0, 5, WHITE); - if (!oneboard) { - win_erasepiece(0, 4, BLACK); - win_erasepiece(0, 7, BLACK); - if (win_flashmove) - win_flash(m, BLACK); - win_drawpiece(&m->piece, 0, 6, BLACK); - win_drawpiece(&chessboard->square[0][7], 0, 5, - BLACK); - } - } - break; - - case QCASTLE: - if (m->piece.color == WHITE) { - win_erasepiece(7, 4, WHITE); - win_erasepiece(7, 0, WHITE); - if (win_flashmove) - win_flash(m, WHITE); - win_drawpiece(&m->piece, 7, 2, WHITE); - win_drawpiece(&chessboard->square[7][0], 7, 3, WHITE); - if (!oneboard) { - win_erasepiece(7, 4, BLACK); - win_erasepiece(7, 0, BLACK); - if (win_flashmove) - win_flash(m, BLACK); - win_drawpiece(&m->piece, 7, 2, BLACK); - win_drawpiece(&chessboard->square[7][7], 7, 3, - BLACK); - } - } else { - win_erasepiece(0, 4, WHITE); - win_erasepiece(0, 0, WHITE); - if (win_flashmove) - win_flash(m, WHITE); - win_drawpiece(&m->piece, 0, 2, WHITE); - win_drawpiece(&chessboard->square[0][0], 0, 3, WHITE); - if (!oneboard) { - win_erasepiece(0, 4, BLACK); - win_erasepiece(0, 0, BLACK); - if (win_flashmove) - win_flash(m, BLACK); - win_drawpiece(&m->piece, 0, 2, BLACK); - win_drawpiece(&chessboard->square[0][7], 0, 3, - BLACK); - } - } - break; - - default: - fprintf(stderr, "Bad move type %d\n", m->type); - } - return; -} - -/* Retract the last move made... */ - -void -replay() -{ - move *m = lastmove, bm; - - memset(&bm, 0, sizeof(bm)); - switch (m->type) { - case MOVE: - bm.type = MOVE; - bm.piece = m->piece; - bm.fromx = m->tox; - bm.fromy = m->toy; - bm.tox = m->fromx; - bm.toy = m->fromy; - board_move(chessboard, &bm); - screen_move(&bm); - break; - - case CAPTURE: - bm.type = MOVE; - bm.piece = m->piece; - bm.fromx = m->tox; - bm.fromy = m->toy; - bm.tox = m->fromx; - bm.toy = m->fromy; - board_move(chessboard, &bm); - screen_move(&bm); - chessboard->square[m->toy][m->tox] = m->taken; - bm.piece = m->taken; - bm.fromx = bm.tox = m->tox; - bm.fromy = bm.toy = m->toy; - screen_move(&bm); - jail_remove(&m->taken); - break; - - case KCASTLE: - bm.type = MOVE; - bm.piece.type = KING; - bm.piece.color = m->piece.color; - bm.fromx = 6; - bm.tox = 4; - bm.fromy = bm.toy = (m->piece.color == WHITE) ? 7 : 0; - board_move(chessboard, &bm); - screen_move(&bm); - bm.type = MOVE; - bm.piece.type = ROOK; - bm.piece.color = m->piece.color; - bm.fromx = 5; - bm.tox = 7; - bm.fromy = bm.toy = (m->piece.color == WHITE) ? 7 : 0; - board_move(chessboard, &bm); - screen_move(&bm); - if (m->piece.color == WHITE) - chessboard->white_cant_castle_k = false; - else - chessboard->black_cant_castle_k = false; - break; - - case QCASTLE: - bm.type = MOVE; - bm.piece.type = KING; - bm.piece.color = m->piece.color; - bm.fromx = 2; - bm.tox = 4; - bm.fromy = bm.toy = (m->piece.color == WHITE) ? 7 : 0; - board_move(chessboard, &bm); - screen_move(&bm); - bm.type = MOVE; - bm.piece.type = ROOK; - bm.piece.color = m->piece.color; - bm.fromx = 3; - bm.tox = 0; - bm.fromy = bm.toy = (m->piece.color == WHITE) ? 7 : 0; - board_move(chessboard, &bm); - screen_move(&bm); - if (m->piece.color == WHITE) - chessboard->white_cant_castle_q = false; - else - chessboard->black_cant_castle_q = false; - break; - } - record_back(); - - nexttomove = ((nexttomove == WHITE) ? BLACK : WHITE); - clock_switch(); - - if (!moves->next) { - moves->next = foremoves; - foremoves = moves; - moves = lastmove = NULL; - } else { - for (m = moves; m->next; m = m->next) - lastmove = m; - lastmove->next->next = foremoves; - foremoves = lastmove->next; - lastmove->next = NULL; - } - - if (progflag) - program_undo(); - - return; -} - -/* Put back the last move undone. */ - -void -forward() -{ - prog_move(foremoves); - foremoves = foremoves->next; - return; -} - -/* End the game. */ - -void -cleanup(s) - char *s; -{ - if (progflag) - program_end(); - record_end(s); - XSync(win1->display, 0); - if (!oneboard) { - XSync(win2->display, 0); - } - exit(0); -} - -void -restart() -{ - moves = lastmove = thismove = NULL; - nexttomove = WHITE; - - clock_init(win1, WHITE); - clock_init(win1, BLACK); - jail_init(win1); - if (!oneboard) { - clock_init(win2, WHITE); - clock_init(win2, BLACK); - jail_init(win2); - } - board_init(chessboard); - win_restart(); - record_reset(); - if (progflag) { - program_end(); - program_init(progname); - } - return; -} - |
