Wed, 09 Apr 2014 09:34:07 +0200
improved async input + improved build system + added time values to move struct
6 | 1 | /* |
2 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. | |
3 | * | |
4 | * Copyright 2014 Mike Becker. All rights reserved. | |
5 | * | |
6 | * Redistribution and use in source and binary forms, with or without | |
7 | * modification, are permitted provided that the following conditions are met: | |
8 | * | |
9 | * 1. Redistributions of source code must retain the above copyright | |
10 | * notice, this list of conditions and the following disclaimer. | |
11 | * | |
12 | * 2. Redistributions in binary form must reproduce the above copyright | |
13 | * notice, this list of conditions and the following disclaimer in the | |
14 | * documentation and/or other materials provided with the distribution. | |
15 | * | |
16 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
17 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE | |
20 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
23 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
24 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
25 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
26 | * POSSIBILITY OF SUCH DAMAGE. | |
27 | * | |
28 | */ | |
29 | ||
30 | #include "game.h" | |
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31 | #include "network.h" |
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32 | #include "input.h" |
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33 | #include <ncurses.h> |
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34 | #include <string.h> |
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35 | #include <inttypes.h> |
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36 | |
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37 | static const uint8_t boardx = 10, boardy = 10; |
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38 | |
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39 | static void draw_time(GameState *gamestate, GameInfo *gameinfo) { |
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40 | if (gameinfo->timecontrol) { |
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41 | // TODO: correct time display |
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42 | |
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43 | uint16_t whitem = gameinfo->time / 60; |
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44 | uint16_t whites = gameinfo->time % 60; |
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45 | uint16_t blackm = gameinfo->time / 60; |
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46 | uint16_t blacks = gameinfo->time % 60; |
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47 | |
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48 | mvprintw(boardy+4, boardx-1, |
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49 | "White time: %4" PRIu16 ":%02" PRIu16, whitem, whites); |
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50 | mvprintw(boardy+5, boardx-1, |
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51 | "Black time: %4" PRIu16 ":%02" PRIu16, blackm, blacks); |
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52 | } |
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53 | } |
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54 | |
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55 | static void draw_board(GameState *gamestate) { |
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56 | for (uint8_t y = 0 ; y < 8 ; y++) { |
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57 | for (uint8_t x = 0 ; x < 8 ; x++) { |
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58 | uint8_t col = gamestate->board[y][x] & COLOR_MASK; |
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59 | uint8_t piece = gamestate->board[y][x] & PIECE_MASK; |
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60 | char piecec; |
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61 | if (piece) { |
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62 | piecec = piece == PAWN ? 'P' : getpiecechr(piece); |
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63 | } else { |
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64 | piecec = ' '; |
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65 | } |
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66 | |
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67 | attrset((col == WHITE ? A_BOLD : A_DIM) | |
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68 | COLOR_PAIR((y&1)==(x&1) ? COL_WB : COL_BW)); |
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69 | |
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70 | int cy = gamestate->mycolor == WHITE ? boardy-y : boardy-7+y; |
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71 | int cx = gamestate->mycolor == WHITE ? boardx+x*3 : boardx+21-x*3; |
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72 | mvaddch(cy, cx, ' '); |
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73 | mvaddch(cy, cx+1, piecec); |
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74 | mvaddch(cy, cx+2, ' '); |
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75 | } |
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76 | } |
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77 | |
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78 | attrset(A_NORMAL); |
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79 | for (uint8_t i = 0 ; i < 8 ; i++) { |
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80 | int x = gamestate->mycolor == WHITE ? boardx+i*3+1 : boardx+22-i*3; |
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81 | int y = gamestate->mycolor == WHITE ? boardy-i : boardy-7+i; |
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82 | mvaddch(boardy+1, x, 'a'+i); |
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83 | mvaddch(y, boardx-2, '1'+i); |
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84 | } |
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85 | |
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86 | /* move log */ |
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87 | // TODO: introduce window to avoid bugs with a long move log |
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88 | uint8_t logy = 0; |
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89 | const uint8_t logx = boardx + 30; |
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90 | int logi = 1; |
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91 | MoveList *logelem = gamestate->movelist; |
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92 | |
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93 | while (logelem) { |
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94 | logi++; |
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95 | if (logi % 2 == 0) { |
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96 | if ((logi - 2) % 4 == 0) { |
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97 | logy++; |
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98 | move(logy, logx); |
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99 | } |
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100 | printw("%d. ", logi / 2); |
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101 | } |
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102 | |
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103 | if (logelem) { |
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104 | Move move = logelem->move; |
25 | 105 | if ((move.piece&PIECE_MASK) == KING && |
106 | abs(move.tofile-move.fromfile) == 2) { | |
107 | addstr(move.tofile==fileidx('c')?"O-O-O":"O-O"); | |
108 | } else { | |
109 | char logstr[] = { | |
110 | getpiecechr(move.piece), | |
111 | filechr(move.fromfile), rowchr(move.fromrow), | |
112 | move.capture ? 'x':'\0', | |
113 | filechr(move.tofile), rowchr(move.torow), | |
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114 | move.check ? '+' : (move.promotion ? '=' : '\0'), |
25 | 115 | move.promotion ? getpiecechr(move.promotion) : '\0' |
116 | }; | |
117 | for (int stri = 0 ; stri < sizeof(logstr) ; stri++) { | |
118 | if (logstr[stri]) { | |
119 | addch(logstr[stri]); | |
120 | } | |
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121 | } |
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122 | } |
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123 | if (!logelem->next) { |
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124 | if (gamestate->checkmate) { |
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125 | addstr("\b#"); |
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126 | } else if (gamestate->stalemate) { |
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127 | addstr(" stalemate"); |
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128 | } |
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129 | } |
25 | 130 | addch(' '); |
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131 | |
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132 | logelem = logelem->next; |
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133 | } |
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134 | } |
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135 | } |
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136 | |
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137 | static void eval_move_failed_msg(int code) { |
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138 | switch (code) { |
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139 | case AMBIGUOUS_MOVE: |
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140 | printw("Ambiguous move - please specify the piece to move."); |
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141 | break; |
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142 | case INVALID_POSITION: |
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143 | printw("Cannot find the piece that shall be moved."); |
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144 | break; |
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145 | case NEED_PROMOTION: |
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146 | printw("You need to promote the pawn (append \"=Q\" e.g.)!"); |
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147 | break; |
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148 | default: |
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149 | printw("Can't interpret move - please use algebraic notation."); |
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150 | } |
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151 | } |
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152 | |
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153 | static int domove_singlemachine(GameState *gamestate, GameInfo *gameinfo) { |
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154 | |
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155 | const size_t buflen = 8; |
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156 | size_t bufpos = 0; |
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157 | char movestr[buflen]; |
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158 | |
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159 | int inputy = getmaxy(stdscr) - 6; |
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160 | while (1) { |
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161 | draw_time(gamestate, gameinfo); |
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162 | move(inputy, 0); |
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163 | printw( |
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164 | "Use chess notation to enter your move.\n" |
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165 | "Or type 'surr' to surrender or 'remis' to end with remis.\n\n" |
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166 | "Type your move: "); |
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167 | clrtoeol(); |
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168 | refresh(); |
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169 | |
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170 | if (asyncgetnstr(movestr, &bufpos, buflen)) { |
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171 | if (strncmp(movestr, "surr", buflen) == 0) { |
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172 | printw("%s surrendered!", |
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173 | gamestate->mycolor==WHITE?"White":"Black"); |
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174 | clrtoeol(); |
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175 | refresh(); |
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176 | return 1; |
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177 | } else if (strncmp(movestr, "remis", buflen) == 0) { |
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178 | printw("Game ends remis."); |
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179 | clrtoeol(); |
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180 | refresh(); |
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181 | return 1; |
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182 | } else { |
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183 | Move move; |
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184 | int eval_result = eval_move(gamestate, movestr, &move); |
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185 | switch (eval_result) { |
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186 | case VALID_MOVE_SYNTAX: |
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187 | if (validate_move(gamestate, &move)) { |
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188 | apply_move(gamestate, &move); |
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189 | if (gamestate->checkmate) { |
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190 | printw("Checkmate!"); |
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191 | clrtoeol(); |
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192 | return 1; |
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193 | } else if (gamestate->stalemate) { |
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194 | printw("Stalemate!"); |
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195 | clrtoeol(); |
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196 | return 1; |
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197 | } else { |
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198 | return 0; |
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199 | } |
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200 | } else { |
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201 | printw("Invalid move."); |
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202 | } |
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203 | break; |
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204 | default: |
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205 | eval_move_failed_msg(eval_result); |
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206 | } |
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207 | clrtoeol(); |
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208 | } |
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209 | } |
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210 | } |
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211 | } |
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212 | |
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213 | static int sendmove(GameState *gamestate, int opponent) { |
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214 | |
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215 | const size_t buflen = 8; |
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216 | char movestr[buflen]; |
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217 | _Bool remisrejected = FALSE; |
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218 | uint8_t code; |
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219 | |
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220 | int inputy = getmaxy(stdscr) - 6; |
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221 | while (1) { |
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222 | move(inputy, 0); |
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223 | if (remisrejected) { |
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224 | printw( |
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225 | "Use chess notation to enter your move.\n" |
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226 | "Remis offer rejected - type 'surr' to surrender. \n\n" |
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227 | "Type your move: "); |
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228 | } else { |
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229 | printw( |
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230 | "Use chess notation to enter your move.\n" |
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231 | "Or type 'surr' to surrender or 'remis' to offer remis.\n\n" |
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232 | "Type your move: "); |
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233 | } |
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234 | clrtoeol(); |
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235 | refresh(); |
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236 | getnstr(movestr, buflen); |
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237 | |
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238 | if (strncmp(movestr, "surr", buflen) == 0) { |
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239 | printw("You surrendered!"); |
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240 | clrtoeol(); |
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241 | refresh(); |
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242 | net_send_code(opponent, NETCODE_SURRENDER); |
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243 | return 1; |
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244 | } else if (strncmp(movestr, "remis", buflen) == 0) { |
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245 | if (!remisrejected) { |
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246 | net_send_code(opponent, NETCODE_REMIS); |
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247 | printw("Remis offer sent - waiting for acceptance..."); |
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248 | refresh(); |
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249 | if (net_recieve_code(opponent) == NETCODE_ACCEPT) { |
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250 | printw("\rRemis accepted!"); |
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251 | clrtoeol(); |
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252 | refresh(); |
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253 | return 1; |
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254 | } else { |
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255 | remisrejected = TRUE; |
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256 | } |
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257 | } |
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258 | } else { |
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259 | Move move; |
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260 | int eval_result = eval_move(gamestate, movestr, &move); |
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261 | switch (eval_result) { |
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262 | case VALID_MOVE_SYNTAX: |
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263 | net_send_data(opponent, NETCODE_MOVE, &move, sizeof(Move)); |
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264 | code = net_recieve_code(opponent); |
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265 | move.check = code == NETCODE_CHECK; |
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266 | gamestate->checkmate = code == NETCODE_CHECKMATE; |
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267 | gamestate->stalemate = code == NETCODE_STALEMATE; |
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268 | if (code == NETCODE_DECLINE) { |
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269 | printw("Invalid move."); |
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270 | } else { |
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271 | apply_move(gamestate, &move); |
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272 | if (gamestate->checkmate) { |
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273 | printw("Checkmate!"); |
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274 | clrtoeol(); |
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275 | return 1; |
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276 | } else if (gamestate->stalemate) { |
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277 | printw("Stalemate!"); |
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278 | clrtoeol(); |
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279 | return 1; |
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280 | } else { |
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281 | return 0; |
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282 | } |
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283 | } |
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284 | break; |
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285 | default: |
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286 | eval_move_failed_msg(eval_result); |
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287 | } |
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288 | clrtoeol(); |
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289 | } |
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290 | } |
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291 | } |
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292 | |
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293 | static int recvmove(GameState *gamestate, int opponent) { |
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294 | |
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295 | int inputy = getmaxy(stdscr) - 6; |
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296 | while (1) { |
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297 | move(inputy, 0); |
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298 | printw("Awaiting opponent move..."); |
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299 | clrtoeol(); |
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300 | refresh(); |
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301 | |
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302 | // TODO: nonblocking |
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303 | uint32_t code = net_recieve_code(opponent); |
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304 | |
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305 | Move move; |
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306 | switch (code) { |
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307 | case NETCODE_SURRENDER: |
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308 | printw("\rYour opponent surrendered!"); |
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309 | clrtoeol(); |
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310 | return 1; |
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311 | case NETCODE_REMIS: |
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312 | if (prompt_yesno( |
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313 | "\rYour opponent offers remis - do you accept")) { |
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314 | printw("\rRemis accepted!"); |
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315 | clrtoeol(); |
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316 | net_send_code(opponent, NETCODE_ACCEPT); |
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317 | return 1; |
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318 | } else { |
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319 | net_send_code(opponent, NETCODE_DECLINE); |
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320 | } |
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321 | break; |
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322 | case NETCODE_MOVE: |
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323 | net_recieve_data(opponent, &move, sizeof(Move)); |
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324 | if (validate_move(gamestate, &move)) { |
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325 | apply_move(gamestate, &move); |
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326 | if (move.check) { |
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327 | net_send_code(opponent, NETCODE_CHECK); |
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328 | } else if (gamestate->checkmate) { |
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329 | net_send_code(opponent, NETCODE_CHECKMATE); |
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330 | printw("\rCheckmate!"); |
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331 | clrtoeol(); |
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332 | return 1; |
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333 | } else if (gamestate->stalemate) { |
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334 | net_send_code(opponent, NETCODE_STALEMATE); |
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335 | printw("\rStalemate!"); |
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336 | clrtoeol(); |
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337 | return 1; |
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338 | } else { |
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339 | net_send_code(opponent, NETCODE_ACCEPT); |
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340 | } |
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341 | return 0; |
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342 | } else { |
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343 | net_send_code(opponent, NETCODE_DECLINE); |
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344 | } |
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345 | } |
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346 | } |
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347 | } |
6 | 348 | |
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349 | static void init_board(GameState *gamestate) { |
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350 | Board initboard = { |
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351 | {WROOK, WKNIGHT, WBISHOP, WQUEEN, WKING, WBISHOP, WKNIGHT, WROOK}, |
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352 | {WPAWN, WPAWN, WPAWN, WPAWN, WPAWN, WPAWN, WPAWN, WPAWN}, |
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353 | {0, 0, 0, 0, 0, 0, 0, 0}, |
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354 | {0, 0, 0, 0, 0, 0, 0, 0}, |
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355 | {0, 0, 0, 0, 0, 0, 0, 0}, |
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356 | {0, 0, 0, 0, 0, 0, 0, 0}, |
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357 | {BPAWN, BPAWN, BPAWN, BPAWN, BPAWN, BPAWN, BPAWN, BPAWN}, |
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358 | {BROOK, BKNIGHT, BBISHOP, BQUEEN, BKING, BBISHOP, BKNIGHT, BROOK} |
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359 | }; |
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360 | memcpy(gamestate->board, initboard, sizeof(Board)); |
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361 | } |
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362 | |
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363 | void game_start_singlemachine(Settings *settings) { |
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364 | GameState gamestate; |
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365 | memset(&gamestate, 0, sizeof(GameState)); |
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366 | init_board(&gamestate); |
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367 | gamestate.mycolor = WHITE; |
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368 | |
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369 | _Bool running; |
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370 | do { |
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371 | clear(); |
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372 | draw_board(&gamestate); |
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373 | running = !domove_singlemachine(&gamestate, &(settings->gameinfo)); |
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374 | gamestate.mycolor = opponent_color(gamestate.mycolor); |
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375 | } while (running); |
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376 | move(0,0); |
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377 | draw_board(&gamestate); |
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378 | |
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379 | gamestate_cleanup(&gamestate); |
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380 | |
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381 | mvaddstr(getmaxy(stdscr)-1, 0, |
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382 | "Game has ended. Press any key to leave..."); |
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383 | refresh(); |
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384 | getch(); |
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385 | } |
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386 | |
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387 | void game_start(Settings *settings, int opponent) { |
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388 | _Bool myturn = is_server(settings) == |
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389 | (settings->gameinfo.servercolor == WHITE); |
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390 | |
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391 | // TODO: time limit |
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392 | GameState gamestate; |
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393 | memset(&gamestate, 0, sizeof(GameState)); |
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394 | init_board(&gamestate); |
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395 | gamestate.mycolor = myturn ? WHITE:BLACK; |
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396 | |
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397 | _Bool running; |
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398 | do { |
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399 | clear(); |
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400 | draw_board(&gamestate); |
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401 | if (myturn) { |
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402 | running = !sendmove(&gamestate, opponent); |
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403 | } else { |
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404 | running = !recvmove(&gamestate, opponent); |
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405 | flushinp(); // flush any input the user hacked in while waiting |
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406 | } |
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407 | myturn ^= TRUE; |
7
41468077b5bb
implemented chess board and remis/surrender messages
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parents:
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408 | } while (running); |
41468077b5bb
implemented chess board and remis/surrender messages
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parents:
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changeset
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409 | |
28
0c1371488d87
NEED TESTING: implemented check and checkmate - TODO: avoid checkmate by moving another piece in between
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parents:
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410 | move(0,0); |
0c1371488d87
NEED TESTING: implemented check and checkmate - TODO: avoid checkmate by moving another piece in between
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parents:
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411 | draw_board(&gamestate); |
0c1371488d87
NEED TESTING: implemented check and checkmate - TODO: avoid checkmate by moving another piece in between
Mike Becker <universe@uap-core.de>
parents:
27
diff
changeset
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412 | |
23
824c9522ce66
introduced game state structure
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parents:
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diff
changeset
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413 | gamestate_cleanup(&gamestate); |
18
6008840b859e
fixed bishop + added pawn promotion + added move log
Mike Becker <universe@uap-core.de>
parents:
17
diff
changeset
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414 | |
23
824c9522ce66
introduced game state structure
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parents:
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diff
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415 | mvaddstr(getmaxy(stdscr)-1, 0, |
7
41468077b5bb
implemented chess board and remis/surrender messages
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parents:
6
diff
changeset
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416 | "Game has ended. Press any key to leave..."); |
26
e0a76ee1bb2b
introduced single machine mode
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parents:
25
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417 | refresh(); |
7
41468077b5bb
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parents:
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418 | getch(); |
6 | 419 | } |