terminal-chess: src/game.c@41468077b5bb (annotated)

src/game.c@41468077b5bb (annotated)

src/game.c

Wed, 19 Mar 2014 15:36:54 +0100

author: Mike Becker <universe@uap-core.de>
date: Wed, 19 Mar 2014 15:36:54 +0100
changeset 7: 41468077b5bb
parent 6: daaf6e5b3501
child 8: 52d742aee695
permissions: -rw-r--r--

implemented chess board and remis/surrender messages

 /*
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
  *
  * Copyright 2014 Mike Becker. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *   1. Redistributions of source code must retain the above copyright
  *      notice, this list of conditions and the following disclaimer.
  *
  *   2. Redistributions in binary form must reproduce the above copyright
  *      notice, this list of conditions and the following disclaimer in the
  *      documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGE.
  *
  */
 #include "game.h"
 #include "input.h"
 #include <ncurses.h>
 #include <string.h>
 static const uint8_t boardx = 10, boardy = 10;
 static void draw_board(Board board) {
     for (uint8_t y = 0 ; y < 8 ; y++) {
         for (uint8_t x = 0 ; x < 8 ; x++) {
             uint8_t col = board[y][x] & COLOR_MASK;
             uint8_t piece = board[y][x] & PIECE_MASK;
             char piecec = ' ';
             switch (piece) {
                 case PAWN: piecec = 'P'; break;
                 case ROOK: piecec = 'R'; break;
                 case KNIGHT: piecec = 'N'; break;
                 case BISHOP: piecec = 'B'; break;
                 case QUEEN: piecec = 'Q'; break;
                 case KING: piecec = 'K'; break;
             }
             attrset((col == WHITE ? A_BOLD : A_DIM) |
                 COLOR_PAIR((y&1)==(x&1) ? COL_WB : COL_BW));
             mvaddch(boardy-y, boardx+x*3, ' ');
             mvaddch(boardy-y, boardx+x*3+1, piecec);
             mvaddch(boardy-y, boardx+x*3+2, ' ');
         }
     }
     attrset(A_NORMAL);
     for (uint8_t i = 0 ; i < 8 ; i++) {
         mvaddch(boardy+1, boardx+i*3+1, 'a'+i);
         mvaddch(boardy-i, boardx-2, '1'+i);
     }
 }
 static int sendmove(int opponent) {
     const size_t buflen = 8;
     char move[buflen];
     _Bool remisrejected = FALSE;
     while (1) {
         move(boardy+3, 0);
         if (remisrejected) {
             printw(
                 "Use chess notation to enter your move.\n"
                 "Remis offer rejected - type 'surr' to surrender.      \n\n"
                 "Type your move: ");
         } else {
             printw(
                 "Use chess notation to enter your move.\n"
                 "Or type 'surr' to surrender or 'remis' to offer remis.\n\n"
                 "Type your move: ");
         }
         clrtoeol();
         refresh();
         getnstr(move, buflen);
         if (strncmp(move, "surr", buflen) == 0) {
             printw("You surrendered!");
             net_send_code(opponent, NETCODE_SURRENDER);
             return 1;
         } else if (strncmp(move, "remis", buflen) == 0) {
             if (!remisrejected) {
                 net_send_code(opponent, NETCODE_REMIS);
                 printw("Remis offer sent - waiting for acceptance...");
                 refresh();
                 if (net_recieve_code(opponent) == NETCODE_ACCEPT) {
                     printw("\rRemis accepted!");
                     clrtoeol();
                     return 1;
                 } else {
                     remisrejected = TRUE;
                 }
             }
         } else {
             // TODO: validate move syntactically
             // TODO: send move and await acceptance
         }
     }
 }
 static int recvmove(int opponent) {
     while (1) {
         move(boardy+3, 0);
         printw("Awaiting opponent move...");
         clrtoeol();
         refresh();
         // TODO: nonblocking
         uint32_t code = net_recieve_code(opponent);
         switch (code) {
             case NETCODE_SURRENDER:
                 printw("\rYour opponent surrendered!");
                 clrtoeol();
                 return 1;
             case NETCODE_REMIS:
                 if (prompt_yesno(
                     "\rYour opponent offers remis - do you accept")) {
                     printw("\rRemis accepted!");
                     clrtoeol();
                     net_send_code(opponent, NETCODE_ACCEPT);
                     return 1;
                 } else {
                     net_send_code(opponent, NETCODE_DECLINE);
                 }
                 break;
             case NETCODE_MOVE:
                 // TODO: receive move
                 // TODO: validate move and accept/reject
                 return 0;
         }
     }
 }
 void game_start(Settings *settings, int opponent) {
     _Bool myturn = is_server(settings) ==
         (settings->gameinfo.servercolor == WHITE);
     _Bool running;
     Board board = {
         {WROOK, WKNIGHT, WBISHOP, WQUEEN, WKING, WBISHOP, WKNIGHT, WROOK},
         {WPAWN, WPAWN,   WPAWN,   WPAWN,  WPAWN, WPAWN,   WPAWN,   WPAWN},
         {0,     0,       0,       0,      0,     0,       0,       0},
         {0,     0,       0,       0,      0,     0,       0,       0},
         {0,     0,       0,       0,      0,     0,       0,       0},
         {0,     0,       0,       0,      0,     0,       0,       0},
         {BPAWN, BPAWN,   BPAWN,   BPAWN,  BPAWN, BPAWN,   BPAWN,   BPAWN},
         {BROOK, BKNIGHT, BBISHOP, BQUEEN, BKING, BBISHOP, BKNIGHT, BROOK}
     };
     do {
         clear();
         draw_board(board);
         if (myturn) {
             running = !sendmove(opponent);
         } else {
             running = !recvmove(opponent);
             flushinp(); // flush any input the user hacked in while waiting
         }
         myturn ^= 1;
     }  while (running);
     mvaddstr(getmaxy(tchess_window)-1, 0,
         "Game has ended. Press any key to leave...");
     getch();
 }

Mercurial > hg > terminal-chess / annotate

src/game.c@41468077b5bb (annotated)

src/game.c