src/client.c

Mon, 16 Jun 2014 15:41:06 +0200

author
Mike Becker <universe@uap-core.de>
date
Mon, 16 Jun 2014 15:41:06 +0200
changeset 51
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parent 34
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child 55
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permissions
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added support for game continuation over network + fixed major bug in checkmate anticipation when the king is attacked diagonally

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1 /*
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2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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3 *
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4 * Copyright 2014 Mike Becker. All rights reserved.
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5 *
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6 * Redistribution and use in source and binary forms, with or without
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7 * modification, are permitted provided that the following conditions are met:
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8 *
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9 * 1. Redistributions of source code must retain the above copyright
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10 * notice, this list of conditions and the following disclaimer.
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11 *
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12 * 2. Redistributions in binary form must reproduce the above copyright
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13 * notice, this list of conditions and the following disclaimer in the
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14 * documentation and/or other materials provided with the distribution.
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15 *
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16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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26 * POSSIBILITY OF SUCH DAMAGE.
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27 *
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28 */
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29
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30 #include "terminal-chess.h"
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31 #include "input.h"
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32 #include "game.h"
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33 #include <ncurses.h>
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34
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35 static int client_connect(Server *server, char *host, char *port) {
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36 if (net_find(server, host, port)) {
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37 addstr("Can't find server");
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38 return 1;
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39 }
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40
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41 if (net_connect(server)) {
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42 addstr("Can't connect to server");
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43 return 1;
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44 }
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45
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46 return 0;
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47 }
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48
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49 static int client_handshake(Server *server) {
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50 if (net_recieve_code(server->fd) != NETCODE_VERSION) {
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51 addstr("Server uses an incompatible software version.");
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52 return 1;
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53 } else {
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54 net_send_code(server->fd, NETCODE_VERSION);
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55 }
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56
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57 printw("Connection established!\n\n");
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58 refresh();
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59
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60 return 0;
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61 }
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62
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63 int client_run(Settings *settings) {
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64 Server server;
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65
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66 if (client_connect(&server, settings->serverhost, settings->port)) {
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67 net_destroy(&server);
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68 return EXIT_FAILURE;
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69 }
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70
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71 if (client_handshake(&server)) {
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72 net_destroy(&server);
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73 return EXIT_FAILURE;
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74 }
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75
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76 uint8_t code = net_recieve_code(server.fd);
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77 if (code == NETCODE_GAMEINFO) {
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78 // Start new game
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79 net_recieve_data(server.fd, &(settings->gameinfo), sizeof(GameInfo));
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80 dump_gameinfo(&(settings->gameinfo));
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81 if (prompt_yesno("Accept challenge")) {
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82 net_send_code(server.fd, NETCODE_ACCEPT);
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83 game_start(settings, server.fd);
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84 } else {
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85 net_send_code(server.fd, NETCODE_DECLINE);
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86 }
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87 } else if (code == NETCODE_PGNDATA) {
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88 net_recieve_data(server.fd, &(settings->gameinfo), sizeof(GameInfo));
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89 dump_gameinfo(&(settings->gameinfo));
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90 uint16_t mc;
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91 net_recieve_data(server.fd, &mc, sizeof(mc));
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92 Move *moves = calloc(mc, sizeof(Move));
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93 net_recieve_data(server.fd, moves, mc*sizeof(Move));
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94 GameState continuegame;
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95 gamestate_init(&continuegame);
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96 for (size_t i = 0 ; i < mc ; i++) {
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97 apply_move(&continuegame, &(moves[i]));
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98 }
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99 free(moves);
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100 addch('\n');
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101 dump_moveinfo(&continuegame);
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102 if (prompt_yesno(
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103 "\n\nServer wants to continue a game. Accept challenge")) {
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104 net_send_code(server.fd, NETCODE_ACCEPT);
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105 game_continue(settings, server.fd, &continuegame);
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106 } else {
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107 net_send_code(server.fd, NETCODE_DECLINE);
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108 }
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109 } else {
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110 addstr("Server sent invalid gameinfo.");
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111 net_destroy(&server);
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112 return EXIT_FAILURE;
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113 }
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114
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115 net_destroy(&server);
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116 return EXIT_SUCCESS;
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117 }

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