Wed, 09 Apr 2014 12:07:47 +0200
added nonblocking read for network games + minor build system fixes
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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 "rules.h" |
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31 | #include "chess.h" |
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32 | #include <string.h> |
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33 | #include <stdlib.h> |
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34 | |
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35 | void gamestate_cleanup(GameState *gamestate) { |
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36 | MoveList *elem; |
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37 | elem = gamestate->movelist; |
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38 | while (elem) { |
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39 | MoveList *cur = elem; |
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40 | elem = elem->next; |
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41 | free(cur); |
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42 | }; |
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43 | } |
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44 | |
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45 | static void addmove(GameState* gamestate, Move *move) { |
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46 | MoveList *elem = malloc(sizeof(MoveList)); |
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47 | elem->next = NULL; |
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48 | elem->move = *move; |
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49 | |
33 | 50 | clock_gettime(CLOCK_REALTIME, &(elem->move.timestamp)); |
51 | ||
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52 | if (gamestate->lastmove) { |
33 | 53 | struct timespec *lasttstamp = &(gamestate->lastmove->move.timestamp); |
54 | time_t sec = elem->move.timestamp.tv_sec - lasttstamp->tv_sec; | |
55 | long int nanos; | |
56 | if (elem->move.timestamp.tv_nsec < lasttstamp->tv_nsec) { | |
57 | nanos = 1e9L-(lasttstamp->tv_nsec - elem->move.timestamp.tv_nsec); | |
58 | sec--; | |
59 | } else { | |
60 | nanos = elem->move.timestamp.tv_nsec - lasttstamp->tv_nsec; | |
61 | } | |
62 | ||
63 | elem->move.movetime.tv_sec = sec; | |
64 | elem->move.movetime.tv_nsec = nanos; | |
65 | ||
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66 | gamestate->lastmove->next = elem; |
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67 | gamestate->lastmove = elem; |
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68 | } else { |
33 | 69 | elem->move.movetime.tv_nsec = 0; |
70 | elem->move.movetime.tv_sec = 0; | |
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71 | gamestate->movelist = gamestate->lastmove = elem; |
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72 | } |
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73 | } |
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74 | |
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75 | char getpiecechr(uint8_t piece) { |
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76 | switch (piece & PIECE_MASK) { |
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77 | case ROOK: return 'R'; |
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78 | case KNIGHT: return 'N'; |
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79 | case BISHOP: return 'B'; |
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80 | case QUEEN: return 'Q'; |
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81 | case KING: return 'K'; |
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82 | default: return '\0'; |
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83 | } |
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84 | } |
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85 | |
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86 | uint8_t getpiece(char c) { |
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87 | switch (c) { |
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88 | case 'R': return ROOK; |
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89 | case 'N': return KNIGHT; |
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90 | case 'B': return BISHOP; |
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91 | case 'Q': return QUEEN; |
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92 | case 'K': return KING; |
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93 | default: return 0; |
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94 | } |
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95 | } |
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96 | |
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97 | static int getlocation(GameState *gamestate, Move *move) { |
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98 | uint8_t piece = move->piece & PIECE_MASK; |
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99 | switch (piece) { |
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100 | case PAWN: return pawn_getlocation(gamestate, move); |
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101 | case ROOK: return rook_getlocation(gamestate, move); |
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102 | case KNIGHT: return knight_getlocation(gamestate, move); |
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103 | case BISHOP: return bishop_getlocation(gamestate, move); |
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104 | case QUEEN: return queen_getlocation(gamestate, move); |
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105 | case KING: return king_getlocation(gamestate, move); |
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106 | default: return INVALID_MOVE_SYNTAX; |
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107 | } |
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108 | } |
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109 | |
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110 | void apply_move(GameState *gamestate, Move *move) { |
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111 | uint8_t piece = move->piece & PIECE_MASK; |
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112 | uint8_t color = move->piece & COLOR_MASK; |
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113 | |
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114 | /* en passant capture */ |
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115 | if (move->capture && piece == PAWN && |
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116 | mdst(gamestate->board, move) == 0) { |
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117 | gamestate->board[move->fromrow][move->tofile] = 0; |
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118 | } |
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119 | |
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120 | /* remove old en passant threats */ |
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121 | for (uint8_t file = 0 ; file < 8 ; file++) { |
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122 | gamestate->board[3][file] &= ~ENPASSANT_THREAT; |
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123 | gamestate->board[4][file] &= ~ENPASSANT_THREAT; |
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124 | } |
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125 | |
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126 | /* add new en passant threat */ |
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127 | if (piece == PAWN && ( |
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128 | (move->fromrow == 1 && move->torow == 3) || |
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129 | (move->fromrow == 6 && move->torow == 4))) { |
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130 | move->piece |= ENPASSANT_THREAT; |
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131 | } |
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132 | |
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133 | /* move (and maybe capture or promote) */ |
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134 | msrc(gamestate->board, move) = 0; |
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135 | if (move->promotion) { |
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136 | mdst(gamestate->board, move) = move->promotion; |
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137 | } else { |
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138 | mdst(gamestate->board, move) = move->piece; |
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139 | } |
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140 | |
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141 | /* castling */ |
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142 | if (piece == KING && |
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143 | move->fromfile == fileidx('e')) { |
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144 | |
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145 | if (move->tofile == fileidx('g')) { |
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146 | gamestate->board[move->torow][fileidx('h')] = 0; |
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147 | gamestate->board[move->torow][fileidx('f')] = color|ROOK; |
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148 | } else if (move->tofile == fileidx('c')) { |
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149 | gamestate->board[move->torow][fileidx('a')] = 0; |
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150 | gamestate->board[move->torow][fileidx('d')] = color|ROOK; |
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151 | } |
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152 | } |
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153 | |
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154 | addmove(gamestate, move); |
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155 | } |
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156 | |
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157 | static _Bool validate_move_rules(GameState *gamestate, Move *move) { |
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158 | /* validate indices (don't trust opponent) */ |
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159 | if (!chkidx(move)) { |
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160 | return 0; |
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161 | } |
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162 | |
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163 | /* must move */ |
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164 | if (move->fromfile == move->tofile && move->fromrow == move->torow) { |
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165 | return 0; |
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166 | } |
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167 | |
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168 | /* does piece exist */ |
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169 | if (msrc(gamestate->board, move) != move->piece) { |
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170 | return 0; |
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171 | } |
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172 | |
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173 | /* can't capture own pieces */ |
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174 | if ((mdst(gamestate->board, move) & COLOR_MASK) |
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175 | == (move->piece & COLOR_MASK)) { |
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176 | return 0; |
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177 | } |
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178 | |
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179 | /* validate individual rules */ |
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180 | switch (move->piece & PIECE_MASK) { |
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181 | case PAWN: |
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182 | return pawn_chkrules(gamestate, move) && |
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183 | !pawn_isblocked(gamestate, move); |
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184 | case ROOK: |
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185 | return rook_chkrules(move) && |
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186 | !rook_isblocked(gamestate, move); |
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187 | case KNIGHT: |
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188 | return knight_chkrules(move); /* knight is never blocked */ |
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189 | case BISHOP: |
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190 | return bishop_chkrules(move) && |
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191 | !bishop_isblocked(gamestate, move); |
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192 | case QUEEN: |
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193 | return queen_chkrules(move) && |
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194 | !queen_isblocked(gamestate, move); |
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195 | case KING: |
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196 | return king_chkrules(gamestate, move) && |
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197 | !king_isblocked(gamestate, move); |
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198 | default: |
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199 | return 0; |
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200 | } |
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201 | } |
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202 | |
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203 | _Bool validate_move(GameState *gamestate, Move *move) { |
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204 | |
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205 | _Bool result = validate_move_rules(gamestate, move); |
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206 | |
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207 | /* cancel processing to save resources */ |
25 | 208 | if (!result) { |
209 | return 0; | |
210 | } | |
211 | ||
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212 | /* find kings for check validation */ |
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213 | uint8_t piececolor = (move->piece & COLOR_MASK); |
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214 | |
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215 | uint8_t mykingfile = 0, mykingrow = 0, opkingfile = 0, opkingrow = 0; |
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216 | for (uint8_t row = 0 ; row < 8 ; row++) { |
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217 | for (uint8_t file = 0 ; file < 8 ; file++) { |
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218 | if (gamestate->board[row][file] == |
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219 | (piececolor == WHITE?WKING:BKING)) { |
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220 | mykingfile = file; |
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221 | mykingrow = row; |
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222 | } else if (gamestate->board[row][file] == |
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223 | (piececolor == WHITE?BKING:WKING)) { |
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224 | opkingfile = file; |
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225 | opkingrow = row; |
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226 | } |
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227 | } |
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228 | } |
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229 | |
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230 | /* simulation move for check validation */ |
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231 | GameState simulation; |
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232 | memcpy(&simulation, gamestate, sizeof(GameState)); |
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233 | apply_move(&simulation, move); |
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234 | |
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235 | /* don't move into or stay in check position */ |
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236 | if (is_covered(&simulation, mykingrow, mykingfile, |
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237 | opponent_color(piececolor))) { |
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238 | return 0; |
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239 | } |
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240 | |
25 | 241 | /* correct check and checkmate flags (move is still valid) */ |
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242 | Move threats[16]; |
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243 | uint8_t threatcount; |
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244 | move->check = get_threats(&simulation, opkingrow, opkingfile, |
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245 | piececolor, threats, &threatcount); |
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246 | |
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247 | if (move->check) { |
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248 | /* determine possible escape fields */ |
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249 | _Bool canescape = 0; |
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250 | for (int dr = -1 ; dr <= 1 && !canescape ; dr++) { |
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251 | for (int df = -1 ; df <= 1 && !canescape ; df++) { |
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252 | if (!(dr == 0 && df == 0) && |
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253 | isidx(opkingrow + dr) && isidx(opkingfile + df)) { |
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254 | |
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255 | /* escape field neither blocked nor covered */ |
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256 | if ((simulation.board[opkingrow + dr][opkingfile + df] |
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257 | & COLOR_MASK) != opponent_color(piececolor)) { |
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258 | canescape |= !is_covered(&simulation, |
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259 | opkingrow + dr, opkingfile + df, piececolor); |
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260 | } |
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261 | } |
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262 | } |
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263 | } |
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264 | /* can't escape, can he capture? */ |
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265 | if (!canescape && threatcount == 1) { |
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266 | canescape = is_attacked(&simulation, threats[0].fromrow, |
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267 | threats[0].fromfile, opponent_color(piececolor)); |
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268 | } |
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269 | |
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270 | /* can't capture, can he block? */ |
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271 | if (!canescape && threatcount == 1) { |
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272 | Move *threat = &(threats[0]); |
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273 | uint8_t threatpiece = threat->piece & PIECE_MASK; |
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274 | |
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275 | /* knight, pawns and the king cannot be blocked */ |
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276 | if (threatpiece == BISHOP || threatpiece == ROOK |
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277 | || threatpiece == QUEEN) { |
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278 | if (threat->fromrow == threat->torow) { |
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279 | /* rook aspect (on row) */ |
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280 | int d = threat->tofile > threat->fromfile ? 1 : -1; |
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281 | uint8_t file = threat->fromfile; |
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282 | while (!canescape && file != threat->tofile - d) { |
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283 | file += d; |
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284 | canescape |= is_protected(&simulation, |
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285 | threat->torow, file, opponent_color(piececolor)); |
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286 | } |
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287 | } else if (threat->fromfile == threat->tofile) { |
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288 | /* rook aspect (on file) */ |
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289 | int d = threat->torow > threat->fromrow ? 1 : -1; |
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290 | uint8_t row = threat->fromrow; |
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291 | while (!canescape && row != threat->torow - d) { |
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292 | row += d; |
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293 | canescape |= is_protected(&simulation, |
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294 | row, threat->tofile, opponent_color(piececolor)); |
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295 | } |
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296 | } else { |
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297 | /* bishop aspect */ |
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298 | int dr = move->torow > move->fromrow ? 1 : -1; |
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299 | int df = move->tofile > move->fromfile ? 1 : -1; |
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300 | |
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301 | uint8_t row = move->fromrow; |
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302 | uint8_t file = move->fromfile; |
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303 | while (!canescape && file != move->tofile - df |
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304 | && row != move->torow - dr) { |
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305 | row += dr; |
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306 | file += df; |
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307 | canescape |= is_protected(&simulation, row, file, |
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308 | opponent_color(piececolor)); |
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309 | } |
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310 | } |
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311 | } |
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312 | } |
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313 | |
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314 | if (!canescape) { |
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315 | gamestate->checkmate = 1; |
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316 | } |
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317 | } |
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318 | |
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319 | return 1; |
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320 | } |
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321 | |
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322 | int eval_move(GameState *gamestate, char *mstr, Move *move) { |
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323 | memset(move, 0, sizeof(Move)); |
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324 | move->fromfile = POS_UNSPECIFIED; |
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325 | move->fromrow = POS_UNSPECIFIED; |
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326 | |
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327 | size_t len = strlen(mstr); |
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328 | |
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329 | /* evaluate check/checkmate flags */ |
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330 | if (mstr[len-1] == '+') { |
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331 | len--; mstr[len] = '\0'; |
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332 | move->check = 1; |
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333 | } else if (mstr[len-1] == '#') { |
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334 | len--; mstr[len] = '\0'; |
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335 | /* ignore - validation should set game state */ |
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336 | } |
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337 | |
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338 | /* evaluate promotion */ |
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339 | if (len > 3 && mstr[len-2] == '=') { |
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340 | move->promotion = getpiece(mstr[len-1]); |
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341 | if (!move->promotion) { |
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342 | return INVALID_MOVE_SYNTAX; |
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343 | } else { |
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344 | move->promotion |= gamestate->mycolor; |
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345 | len -= 2; |
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346 | mstr[len] = 0; |
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347 | } |
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348 | } |
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349 | |
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350 | if (len == 2) { |
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351 | /* pawn move (e.g. "e4") */ |
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352 | move->piece = PAWN; |
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353 | move->tofile = fileidx(mstr[0]); |
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354 | move->torow = rowidx(mstr[1]); |
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355 | } else if (len == 3) { |
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356 | if (strcmp(mstr, "O-O") == 0) { |
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357 | /* king side castling */ |
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358 | move->piece = KING; |
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359 | move->fromfile = fileidx('e'); |
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360 | move->tofile = fileidx('g'); |
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361 | move->fromrow = move->torow = gamestate->mycolor == WHITE ? 0 : 7; |
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362 | } else { |
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363 | /* move (e.g. "Nf3") */ |
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364 | move->piece = getpiece(mstr[0]); |
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365 | move->tofile = fileidx(mstr[1]); |
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366 | move->torow = rowidx(mstr[2]); |
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367 | } |
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368 | |
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369 | } else if (len == 4) { |
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370 | move->piece = getpiece(mstr[0]); |
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371 | if (!move->piece) { |
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372 | move->piece = PAWN; |
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373 | move->fromfile = fileidx(mstr[0]); |
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374 | } |
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375 | if (mstr[1] == 'x') { |
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376 | /* capture (e.g. "Nxf3", "dxe5") */ |
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377 | move->capture = 1; |
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378 | } else { |
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379 | /* move (e.g. "Ndf3", "N2c3", "e2e4") */ |
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380 | if (isfile(mstr[1])) { |
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381 | move->fromfile = fileidx(mstr[1]); |
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382 | if (move->piece == PAWN) { |
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383 | move->piece = 0; |
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384 | } |
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385 | } else { |
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386 | move->fromrow = rowidx(mstr[1]); |
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387 | } |
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388 | } |
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389 | move->tofile = fileidx(mstr[2]); |
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390 | move->torow = rowidx(mstr[3]); |
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391 | } else if (len == 5) { |
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392 | if (strcmp(mstr, "O-O-O") == 0) { |
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393 | /* queen side castling "O-O-O" */ |
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394 | move->piece = KING; |
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395 | move->fromfile = fileidx('e'); |
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396 | move->tofile = fileidx('c'); |
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397 | move->fromrow = move->torow = gamestate->mycolor == WHITE ? 0 : 7; |
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398 | } else { |
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399 | move->piece = getpiece(mstr[0]); |
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400 | if (mstr[2] == 'x') { |
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401 | move->capture = 1; |
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402 | if (move->piece) { |
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403 | /* capture (e.g. "Ndxf3") */ |
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404 | move->fromfile = fileidx(mstr[1]); |
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405 | } else { |
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406 | /* long notation capture (e.g. "e5xf6") */ |
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407 | move->piece = PAWN; |
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408 | move->fromfile = fileidx(mstr[0]); |
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409 | move->fromrow = rowidx(mstr[1]); |
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410 | } |
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411 | } else { |
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412 | /* long notation move (e.g. "Nc5a4") */ |
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413 | move->fromfile = fileidx(mstr[1]); |
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414 | move->fromrow = rowidx(mstr[2]); |
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415 | } |
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416 | move->tofile = fileidx(mstr[3]); |
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417 | move->torow = rowidx(mstr[4]); |
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418 | } |
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419 | } else if (len == 6) { |
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420 | /* long notation capture (e.g. "Nc5xf3") */ |
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421 | if (mstr[3] == 'x') { |
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422 | move->capture = 1; |
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423 | move->piece = getpiece(mstr[0]); |
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424 | move->fromfile = fileidx(mstr[1]); |
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425 | move->fromrow = rowidx(mstr[2]); |
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426 | move->tofile = fileidx(mstr[4]); |
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427 | move->torow = rowidx(mstr[5]); |
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428 | } |
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429 | } |
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430 | |
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431 | |
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432 | if (move->piece) { |
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433 | if (move->piece == PAWN |
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434 | && move->torow == (gamestate->mycolor==WHITE?7:0) |
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435 | && !move->promotion) { |
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436 | return NEED_PROMOTION; |
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437 | } |
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438 | |
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439 | move->piece |= gamestate->mycolor; |
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440 | if (move->fromfile == POS_UNSPECIFIED |
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441 | || move->fromrow == POS_UNSPECIFIED) { |
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442 | return getlocation(gamestate, move); |
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443 | } else { |
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444 | return chkidx(move) ? VALID_MOVE_SYNTAX : INVALID_POSITION; |
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445 | } |
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446 | } else { |
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447 | return INVALID_MOVE_SYNTAX; |
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448 | } |
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449 | } |
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450 | |
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451 | _Bool get_threats(GameState *gamestate, uint8_t row, uint8_t file, |
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452 | uint8_t color, Move *threats, uint8_t *threatcount) { |
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453 | Move candidates[16]; |
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454 | int candidatecount = 0; |
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455 | for (uint8_t r = 0 ; r < 8 ; r++) { |
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456 | for (uint8_t f = 0 ; f < 8 ; f++) { |
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457 | if ((gamestate->board[r][f] & COLOR_MASK) == color) { |
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458 | memset(&(candidates[candidatecount]), 0, sizeof(Move)); |
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459 | candidates[candidatecount].piece = gamestate->board[r][f]; |
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460 | candidates[candidatecount].fromrow = r; |
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461 | candidates[candidatecount].fromfile = f; |
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462 | candidates[candidatecount].torow = row; |
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463 | candidates[candidatecount].tofile = file; |
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464 | candidatecount++; |
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465 | } |
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466 | } |
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467 | } |
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468 | |
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469 | if (threatcount) { |
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470 | *threatcount = 0; |
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471 | } |
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472 | |
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473 | |
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474 | _Bool result = 0; |
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475 | |
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476 | for (int i = 0 ; i < candidatecount ; i++) { |
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477 | if (validate_move_rules(gamestate, &(candidates[i]))) { |
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478 | result = 1; |
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479 | if (threats && threatcount) { |
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480 | threats[(*threatcount)++] = candidates[i]; |
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481 | } |
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482 | } |
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483 | } |
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484 | |
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485 | return result; |
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486 | } |
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487 | |
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488 | _Bool get_real_threats(GameState *gamestate, uint8_t row, uint8_t file, |
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489 | uint8_t color, Move *threats, uint8_t *threatcount) { |
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490 | |
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491 | Move candidates[16]; |
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492 | uint8_t candidatecount; |
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493 | if (get_threats(gamestate, row, file, color, candidates, &candidatecount)) { |
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494 | |
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495 | if (threatcount) { |
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496 | *threatcount = 0; |
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497 | } |
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498 | _Bool result = 0; |
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499 | uint8_t kingfile = 0, kingrow = 0; |
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500 | for (uint8_t row = 0 ; row < 8 ; row++) { |
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501 | for (uint8_t file = 0 ; file < 8 ; file++) { |
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502 | if ((gamestate->board[row][file] & COLOR_MASK) == color) { |
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503 | kingfile = file; |
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504 | kingrow = row; |
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505 | } |
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506 | } |
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507 | } |
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508 | |
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509 | for (uint8_t i = 0 ; i < candidatecount ; i++) { |
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510 | GameState simulation; |
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511 | memcpy(&simulation, gamestate, sizeof(GameState)); |
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512 | apply_move(&simulation, &(candidates[i])); |
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513 | if (!is_covered(&simulation, kingrow, kingfile, |
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514 | opponent_color(color))) { |
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515 | result = 1; |
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516 | if (threats && threatcount) { |
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517 | threats[(*threatcount)++] = candidates[i]; |
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518 | } |
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519 | } |
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520 | } |
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521 | |
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522 | return result; |
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523 | } else { |
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524 | return 0; |
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525 | } |
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526 | } |
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527 | |
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528 | _Bool is_protected(GameState *gamestate, uint8_t row, uint8_t file, |
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529 | uint8_t color) { |
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530 | |
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531 | Move threats[16]; |
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532 | uint8_t threatcount; |
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533 | if (get_real_threats(gamestate, row, file, color, threats, &threatcount)) { |
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534 | for (int i = 0 ; i < threatcount ; i++) { |
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535 | if (threats[i].piece != (color|KING)) { |
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536 | return 1; |
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537 | } |
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538 | } |
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539 | return 0; |
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540 | } else { |
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541 | return 0; |
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542 | } |
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543 | } |
33 | 544 | |
545 | uint16_t remaining_movetime(GameInfo *gameinfo, GameState *gamestate, | |
546 | uint8_t color) { | |
547 | if (!gameinfo->timecontrol) { | |
548 | return 0; | |
549 | } | |
550 | ||
551 | if (gamestate->movelist) { | |
552 | uint16_t time = gameinfo->time; | |
553 | long int nanos = 0; | |
554 | ||
555 | MoveList *movelist = color == WHITE ? | |
556 | gamestate->movelist : gamestate->movelist->next; | |
557 | ||
558 | while (movelist) { | |
559 | time += gameinfo->addtime; | |
560 | ||
561 | struct timespec *movetime = &(movelist->move.movetime); | |
562 | if (movetime->tv_sec >= time) { | |
563 | return 0; | |
564 | } | |
565 | ||
566 | time -= movetime->tv_sec; | |
567 | nanos += movetime->tv_nsec; | |
568 | ||
569 | movelist = movelist->next ? movelist->next->next : NULL; | |
570 | } | |
571 | ||
572 | time_t sec; | |
573 | movelist = gamestate->lastmove; | |
574 | if ((movelist->move.piece & COLOR_MASK) != color) { | |
575 | struct timespec *lastmovetstamp = &(movelist->move.timestamp); | |
576 | struct timespec currenttstamp; | |
577 | clock_gettime(CLOCK_REALTIME, ¤ttstamp); | |
578 | nanos += currenttstamp.tv_nsec - lastmovetstamp->tv_nsec; | |
579 | sec = currenttstamp.tv_sec - lastmovetstamp->tv_sec; | |
580 | if (sec >= time) { | |
581 | return 0; | |
582 | } | |
583 | ||
584 | time -= sec; | |
585 | } | |
586 | ||
587 | sec = nanos / 1e9L; | |
588 | ||
589 | if (sec >= time) { | |
590 | return 0; | |
591 | } | |
592 | ||
593 | time -= sec; | |
594 | ||
595 | return time; | |
596 | } else { | |
597 | return gameinfo->time; | |
598 | } | |
599 | } |