1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/test/gs/bigtest.html Mon Apr 24 20:54:38 2023 +0200
1.3 @@ -0,0 +1,865 @@
1.4 +<!DOCTYPE html>
1.5 +<html>
1.6 + <head>
1.7 + <title>c2html</title>
1.8 + <style type="text/css">
1.9 + div.c2html-code {
1.10 + white-space: pre;
1.11 + font-family: monospace;
1.12 + }
1.13 + a.c2html-lineno {
1.14 + /* as long as user-select isn't widely spread, we throw the bomb */
1.15 + -webkit-user-select: none;
1.16 + -moz-user-select: none;
1.17 + -ms-user-select: none;
1.18 + user-select: none;
1.19 + display: inline-block;
1.20 + font-style: italic;
1.21 + text-decoration: none;
1.22 + color: grey;
1.23 + }
1.24 + span.c2html-keyword {
1.25 + color: blue;
1.26 + }
1.27 + span.c2html-macroconst {
1.28 + color: cornflowerblue;
1.29 + }
1.30 + span.c2html-type {
1.31 + color: cornflowerblue;
1.32 + }
1.33 + span.c2html-directive {
1.34 + color: green;
1.35 + }
1.36 + span.c2html-string {
1.37 + color: darkorange;
1.38 + }
1.39 + span.c2html-comment {
1.40 + color: grey;
1.41 + }
1.42 + span.c2html-stdinclude {
1.43 + color: darkorange;
1.44 + }
1.45 + span.c2html-userinclude {
1.46 + color: darkorange;
1.47 + }
1.48 + a.c2html-userinclude {
1.49 + color: darkorange;
1.50 + text-decoration: underline;
1.51 + }
1.52 + </style>
1.53 + </head>
1.54 + <body>
1.55 +
1.56 +<div class="c2html-code">
1.57 +<a class="c2html-lineno" name="l1" href="#l1"> 1 </a><span class="c2html-comment">/*</span>
1.58 +<a class="c2html-lineno" name="l2" href="#l2"> 2 </a><span class="c2html-comment"> * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.</span>
1.59 +<a class="c2html-lineno" name="l3" href="#l3"> 3 </a><span class="c2html-comment"> *</span>
1.60 +<a class="c2html-lineno" name="l4" href="#l4"> 4 </a><span class="c2html-comment"> * Copyright 2014 Mike Becker. All rights reserved.</span>
1.61 +<a class="c2html-lineno" name="l5" href="#l5"> 5 </a><span class="c2html-comment"> *</span>
1.62 +<a class="c2html-lineno" name="l6" href="#l6"> 6 </a><span class="c2html-comment"> * Redistribution and use in source and binary forms, with or without</span>
1.63 +<a class="c2html-lineno" name="l7" href="#l7"> 7 </a><span class="c2html-comment"> * modification, are permitted provided that the following conditions are met:</span>
1.64 +<a class="c2html-lineno" name="l8" href="#l8"> 8 </a><span class="c2html-comment"> *</span>
1.65 +<a class="c2html-lineno" name="l9" href="#l9"> 9 </a><span class="c2html-comment"> * 1. Redistributions of source code must retain the above copyright</span>
1.66 +<a class="c2html-lineno" name="l10" href="#l10"> 10 </a><span class="c2html-comment"> * notice, this list of conditions and the following disclaimer.</span>
1.67 +<a class="c2html-lineno" name="l11" href="#l11"> 11 </a><span class="c2html-comment"> *</span>
1.68 +<a class="c2html-lineno" name="l12" href="#l12"> 12 </a><span class="c2html-comment"> * 2. Redistributions in binary form must reproduce the above copyright</span>
1.69 +<a class="c2html-lineno" name="l13" href="#l13"> 13 </a><span class="c2html-comment"> * notice, this list of conditions and the following disclaimer in the</span>
1.70 +<a class="c2html-lineno" name="l14" href="#l14"> 14 </a><span class="c2html-comment"> * documentation and/or other materials provided with the distribution.</span>
1.71 +<a class="c2html-lineno" name="l15" href="#l15"> 15 </a><span class="c2html-comment"> *</span>
1.72 +<a class="c2html-lineno" name="l16" href="#l16"> 16 </a><span class="c2html-comment"> * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"</span>
1.73 +<a class="c2html-lineno" name="l17" href="#l17"> 17 </a><span class="c2html-comment"> * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE</span>
1.74 +<a class="c2html-lineno" name="l18" href="#l18"> 18 </a><span class="c2html-comment"> * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE</span>
1.75 +<a class="c2html-lineno" name="l19" href="#l19"> 19 </a><span class="c2html-comment"> * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE</span>
1.76 +<a class="c2html-lineno" name="l20" href="#l20"> 20 </a><span class="c2html-comment"> * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR</span>
1.77 +<a class="c2html-lineno" name="l21" href="#l21"> 21 </a><span class="c2html-comment"> * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF</span>
1.78 +<a class="c2html-lineno" name="l22" href="#l22"> 22 </a><span class="c2html-comment"> * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS</span>
1.79 +<a class="c2html-lineno" name="l23" href="#l23"> 23 </a><span class="c2html-comment"> * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN</span>
1.80 +<a class="c2html-lineno" name="l24" href="#l24"> 24 </a><span class="c2html-comment"> * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)</span>
1.81 +<a class="c2html-lineno" name="l25" href="#l25"> 25 </a><span class="c2html-comment"> * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE</span>
1.82 +<a class="c2html-lineno" name="l26" href="#l26"> 26 </a><span class="c2html-comment"> * POSSIBILITY OF SUCH DAMAGE.</span>
1.83 +<a class="c2html-lineno" name="l27" href="#l27"> 27 </a><span class="c2html-comment"> *</span>
1.84 +<a class="c2html-lineno" name="l28" href="#l28"> 28 </a><span class="c2html-comment"> */</span>
1.85 +<a class="c2html-lineno" name="l29" href="#l29"> 29 </a>
1.86 +<a class="c2html-lineno" name="l30" href="#l30"> 30 </a><span class="c2html-directive">#include</span> <a class="c2html-userinclude" href="rules.h">"rules.h"</a>
1.87 +<a class="c2html-lineno" name="l31" href="#l31"> 31 </a><span class="c2html-directive">#include</span> <a class="c2html-userinclude" href="chess.h">"chess.h"</a>
1.88 +<a class="c2html-lineno" name="l32" href="#l32"> 32 </a><span class="c2html-directive">#include</span> <span class="c2html-stdinclude"><string.h></span>
1.89 +<a class="c2html-lineno" name="l33" href="#l33"> 33 </a><span class="c2html-directive">#include</span> <span class="c2html-stdinclude"><stdlib.h></span>
1.90 +<a class="c2html-lineno" name="l34" href="#l34"> 34 </a><span class="c2html-directive">#include</span> <span class="c2html-stdinclude"><sys/time.h></span>
1.91 +<a class="c2html-lineno" name="l35" href="#l35"> 35 </a>
1.92 +<a class="c2html-lineno" name="l36" href="#l36"> 36 </a><span class="c2html-keyword">static</span> GameState gamestate_copy_sim(GameState *gamestate) {
1.93 +<a class="c2html-lineno" name="l37" href="#l37"> 37 </a> GameState simulation = *gamestate;
1.94 +<a class="c2html-lineno" name="l38" href="#l38"> 38 </a> <span class="c2html-keyword">if</span> (simulation.lastmove) {
1.95 +<a class="c2html-lineno" name="l39" href="#l39"> 39 </a> MoveList *lastmovecopy = malloc(<span class="c2html-keyword">sizeof</span>(MoveList));
1.96 +<a class="c2html-lineno" name="l40" href="#l40"> 40 </a> *lastmovecopy = *(simulation.lastmove);
1.97 +<a class="c2html-lineno" name="l41" href="#l41"> 41 </a> simulation.movelist = simulation.lastmove = lastmovecopy;
1.98 +<a class="c2html-lineno" name="l42" href="#l42"> 42 </a> }
1.99 +<a class="c2html-lineno" name="l43" href="#l43"> 43 </a>
1.100 +<a class="c2html-lineno" name="l44" href="#l44"> 44 </a> <span class="c2html-keyword">return</span> simulation;
1.101 +<a class="c2html-lineno" name="l45" href="#l45"> 45 </a>}
1.102 +<a class="c2html-lineno" name="l46" href="#l46"> 46 </a>
1.103 +<a class="c2html-lineno" name="l47" href="#l47"> 47 </a><span class="c2html-keyword">void</span> gamestate_init(GameState *gamestate) {
1.104 +<a class="c2html-lineno" name="l48" href="#l48"> 48 </a> memset(gamestate, <span class="c2html-macroconst">0</span>, <span class="c2html-keyword">sizeof</span>(GameState));
1.105 +<a class="c2html-lineno" name="l49" href="#l49"> 49 </a>
1.106 +<a class="c2html-lineno" name="l50" href="#l50"> 50 </a> Board initboard = {
1.107 +<a class="c2html-lineno" name="l51" href="#l51"> 51 </a> {<span class="c2html-macroconst">WROOK</span>, <span class="c2html-macroconst">WKNIGHT</span>, <span class="c2html-macroconst">WBISHOP</span>, <span class="c2html-macroconst">WQUEEN</span>, <span class="c2html-macroconst">WKING</span>, <span class="c2html-macroconst">WBISHOP</span>, <span class="c2html-macroconst">WKNIGHT</span>, <span class="c2html-macroconst">WROOK</span>},
1.108 +<a class="c2html-lineno" name="l52" href="#l52"> 52 </a> {<span class="c2html-macroconst">WPAWN</span>, <span class="c2html-macroconst">WPAWN</span>, <span class="c2html-macroconst">WPAWN</span>, <span class="c2html-macroconst">WPAWN</span>, <span class="c2html-macroconst">WPAWN</span>, <span class="c2html-macroconst">WPAWN</span>, <span class="c2html-macroconst">WPAWN</span>, <span class="c2html-macroconst">WPAWN</span>},
1.109 +<a class="c2html-lineno" name="l53" href="#l53"> 53 </a> {<span class="c2html-macroconst">0</span>, <span class="c2html-macroconst">0</span>, <span class="c2html-macroconst">0</span>, <span class="c2html-macroconst">0</span>, <span class="c2html-macroconst">0</span>, <span class="c2html-macroconst">0</span>, <span class="c2html-macroconst">0</span>, <span class="c2html-macroconst">0</span>},
1.110 +<a class="c2html-lineno" name="l54" href="#l54"> 54 </a> {<span class="c2html-macroconst">0</span>, <span class="c2html-macroconst">0</span>, <span class="c2html-macroconst">0</span>, <span class="c2html-macroconst">0</span>, <span class="c2html-macroconst">0</span>, <span class="c2html-macroconst">0</span>, <span class="c2html-macroconst">0</span>, <span class="c2html-macroconst">0</span>},
1.111 +<a class="c2html-lineno" name="l55" href="#l55"> 55 </a> {<span class="c2html-macroconst">0</span>, <span class="c2html-macroconst">0</span>, <span class="c2html-macroconst">0</span>, <span class="c2html-macroconst">0</span>, <span class="c2html-macroconst">0</span>, <span class="c2html-macroconst">0</span>, <span class="c2html-macroconst">0</span>, <span class="c2html-macroconst">0</span>},
1.112 +<a class="c2html-lineno" name="l56" href="#l56"> 56 </a> {<span class="c2html-macroconst">0</span>, <span class="c2html-macroconst">0</span>, <span class="c2html-macroconst">0</span>, <span class="c2html-macroconst">0</span>, <span class="c2html-macroconst">0</span>, <span class="c2html-macroconst">0</span>, <span class="c2html-macroconst">0</span>, <span class="c2html-macroconst">0</span>},
1.113 +<a class="c2html-lineno" name="l57" href="#l57"> 57 </a> {<span class="c2html-macroconst">BPAWN</span>, <span class="c2html-macroconst">BPAWN</span>, <span class="c2html-macroconst">BPAWN</span>, <span class="c2html-macroconst">BPAWN</span>, <span class="c2html-macroconst">BPAWN</span>, <span class="c2html-macroconst">BPAWN</span>, <span class="c2html-macroconst">BPAWN</span>, <span class="c2html-macroconst">BPAWN</span>},
1.114 +<a class="c2html-lineno" name="l58" href="#l58"> 58 </a> {<span class="c2html-macroconst">BROOK</span>, <span class="c2html-macroconst">BKNIGHT</span>, <span class="c2html-macroconst">BBISHOP</span>, <span class="c2html-macroconst">BQUEEN</span>, <span class="c2html-macroconst">BKING</span>, <span class="c2html-macroconst">BBISHOP</span>, <span class="c2html-macroconst">BKNIGHT</span>, <span class="c2html-macroconst">BROOK</span>}
1.115 +<a class="c2html-lineno" name="l59" href="#l59"> 59 </a> };
1.116 +<a class="c2html-lineno" name="l60" href="#l60"> 60 </a> memcpy(gamestate->board, initboard, <span class="c2html-keyword">sizeof</span>(Board));
1.117 +<a class="c2html-lineno" name="l61" href="#l61"> 61 </a>}
1.118 +<a class="c2html-lineno" name="l62" href="#l62"> 62 </a>
1.119 +<a class="c2html-lineno" name="l63" href="#l63"> 63 </a><span class="c2html-keyword">void</span> gamestate_cleanup(GameState *gamestate) {
1.120 +<a class="c2html-lineno" name="l64" href="#l64"> 64 </a> MoveList *elem;
1.121 +<a class="c2html-lineno" name="l65" href="#l65"> 65 </a> elem = gamestate->movelist;
1.122 +<a class="c2html-lineno" name="l66" href="#l66"> 66 </a> <span class="c2html-keyword">while</span> (elem) {
1.123 +<a class="c2html-lineno" name="l67" href="#l67"> 67 </a> MoveList *cur = elem;
1.124 +<a class="c2html-lineno" name="l68" href="#l68"> 68 </a> elem = elem->next;
1.125 +<a class="c2html-lineno" name="l69" href="#l69"> 69 </a> free(cur);
1.126 +<a class="c2html-lineno" name="l70" href="#l70"> 70 </a> };
1.127 +<a class="c2html-lineno" name="l71" href="#l71"> 71 </a>}
1.128 +<a class="c2html-lineno" name="l72" href="#l72"> 72 </a>
1.129 +<a class="c2html-lineno" name="l73" href="#l73"> 73 </a><span class="c2html-comment">/* MUST be called IMMEDIATLY after applying a move to work correctly */</span>
1.130 +<a class="c2html-lineno" name="l74" href="#l74"> 74 </a><span class="c2html-keyword">static</span> <span class="c2html-keyword">void</span> format_move(GameState *gamestate, Move *move) {
1.131 +<a class="c2html-lineno" name="l75" href="#l75"> 75 </a> <span class="c2html-keyword">char</span> *string = move->string;
1.132 +<a class="c2html-lineno" name="l76" href="#l76"> 76 </a>
1.133 +<a class="c2html-lineno" name="l77" href="#l77"> 77 </a> <span class="c2html-comment">/* at least 8 characters should be available, wipe them out */</span>
1.134 +<a class="c2html-lineno" name="l78" href="#l78"> 78 </a> memset(string, <span class="c2html-macroconst">0</span>, <span class="c2html-macroconst">8</span>);
1.135 +<a class="c2html-lineno" name="l79" href="#l79"> 79 </a>
1.136 +<a class="c2html-lineno" name="l80" href="#l80"> 80 </a> <span class="c2html-comment">/* special formats for castling */</span>
1.137 +<a class="c2html-lineno" name="l81" href="#l81"> 81 </a> <span class="c2html-keyword">if</span> ((move->piece&<span class="c2html-macroconst">PIECE_MASK</span>) == <span class="c2html-macroconst">KING</span> &&
1.138 +<a class="c2html-lineno" name="l82" href="#l82"> 82 </a> abs(move->tofile-move->fromfile) == <span class="c2html-macroconst">2</span>) {
1.139 +<a class="c2html-lineno" name="l83" href="#l83"> 83 </a> <span class="c2html-keyword">if</span> (move->tofile==fileidx(<span class="c2html-string">'c'</span>)) {
1.140 +<a class="c2html-lineno" name="l84" href="#l84"> 84 </a> memcpy(string, <span class="c2html-string">"O-O-O"</span>, <span class="c2html-macroconst">5</span>);
1.141 +<a class="c2html-lineno" name="l85" href="#l85"> 85 </a> } <span class="c2html-keyword">else</span> {
1.142 +<a class="c2html-lineno" name="l86" href="#l86"> 86 </a> memcpy(string, <span class="c2html-string">"O-O"</span>, <span class="c2html-macroconst">3</span>);
1.143 +<a class="c2html-lineno" name="l87" href="#l87"> 87 </a> }
1.144 +<a class="c2html-lineno" name="l88" href="#l88"> 88 </a> }
1.145 +<a class="c2html-lineno" name="l89" href="#l89"> 89 </a>
1.146 +<a class="c2html-lineno" name="l90" href="#l90"> 90 </a> <span class="c2html-comment">/* start by notating the piece character */</span>
1.147 +<a class="c2html-lineno" name="l91" href="#l91"> 91 </a> string[<span class="c2html-macroconst">0</span>] = getpiecechr(move->piece);
1.148 +<a class="c2html-lineno" name="l92" href="#l92"> 92 </a> <span class="c2html-keyword">int</span> idx = string[<span class="c2html-macroconst">0</span>] ? <span class="c2html-macroconst">1</span> : <span class="c2html-macroconst">0</span>;
1.149 +<a class="c2html-lineno" name="l93" href="#l93"> 93 </a>
1.150 +<a class="c2html-lineno" name="l94" href="#l94"> 94 </a> <span class="c2html-comment">/* find out how many source information we do need */</span>
1.151 +<a class="c2html-lineno" name="l95" href="#l95"> 95 </a> <span class="c2html-type">uint8_t</span> piece = move->piece & <span class="c2html-macroconst">PIECE_MASK</span>;
1.152 +<a class="c2html-lineno" name="l96" href="#l96"> 96 </a> <span class="c2html-keyword">if</span> (piece == <span class="c2html-macroconst">PAWN</span>) {
1.153 +<a class="c2html-lineno" name="l97" href="#l97"> 97 </a> <span class="c2html-keyword">if</span> (move->capture) {
1.154 +<a class="c2html-lineno" name="l98" href="#l98"> 98 </a> string[idx++] = filechr(move->fromfile);
1.155 +<a class="c2html-lineno" name="l99" href="#l99"> 99 </a> }
1.156 +<a class="c2html-lineno" name="l100" href="#l100">100 </a> } <span class="c2html-keyword">else</span> <span class="c2html-keyword">if</span> (piece != <span class="c2html-macroconst">KING</span>) {
1.157 +<a class="c2html-lineno" name="l101" href="#l101">101 </a> Move threats[<span class="c2html-macroconst">16</span>];
1.158 +<a class="c2html-lineno" name="l102" href="#l102">102 </a> <span class="c2html-type">uint8_t</span> threatcount;
1.159 +<a class="c2html-lineno" name="l103" href="#l103">103 </a> get_real_threats(gamestate, move->torow, move->tofile,
1.160 +<a class="c2html-lineno" name="l104" href="#l104">104 </a> move->piece&<span class="c2html-macroconst">COLOR_MASK</span>, threats, &threatcount);
1.161 +<a class="c2html-lineno" name="l105" href="#l105">105 </a> <span class="c2html-keyword">if</span> (threatcount > <span class="c2html-macroconst">1</span>) {
1.162 +<a class="c2html-lineno" name="l106" href="#l106">106 </a> <span class="c2html-keyword">int</span> ambrows = <span class="c2html-macroconst">0</span>, ambfiles = <span class="c2html-macroconst">0</span>;
1.163 +<a class="c2html-lineno" name="l107" href="#l107">107 </a> <span class="c2html-keyword">for</span> (<span class="c2html-type">uint8_t</span> i = <span class="c2html-macroconst">0</span> ; i < threatcount ; i++) {
1.164 +<a class="c2html-lineno" name="l108" href="#l108">108 </a> <span class="c2html-keyword">if</span> (threats[i].fromrow == move->fromrow) {
1.165 +<a class="c2html-lineno" name="l109" href="#l109">109 </a> ambrows++;
1.166 +<a class="c2html-lineno" name="l110" href="#l110">110 </a> }
1.167 +<a class="c2html-lineno" name="l111" href="#l111">111 </a> <span class="c2html-keyword">if</span> (threats[i].fromfile == move->fromfile) {
1.168 +<a class="c2html-lineno" name="l112" href="#l112">112 </a> ambfiles++;
1.169 +<a class="c2html-lineno" name="l113" href="#l113">113 </a> }
1.170 +<a class="c2html-lineno" name="l114" href="#l114">114 </a> }
1.171 +<a class="c2html-lineno" name="l115" href="#l115">115 </a> <span class="c2html-comment">/* ambiguous row, name file */</span>
1.172 +<a class="c2html-lineno" name="l116" href="#l116">116 </a> <span class="c2html-keyword">if</span> (ambrows > <span class="c2html-macroconst">1</span>) {
1.173 +<a class="c2html-lineno" name="l117" href="#l117">117 </a> string[idx++] = filechr(move->fromfile);
1.174 +<a class="c2html-lineno" name="l118" href="#l118">118 </a> }
1.175 +<a class="c2html-lineno" name="l119" href="#l119">119 </a> <span class="c2html-comment">/* ambiguous file, name row */</span>
1.176 +<a class="c2html-lineno" name="l120" href="#l120">120 </a> <span class="c2html-keyword">if</span> (ambfiles > <span class="c2html-macroconst">1</span>) {
1.177 +<a class="c2html-lineno" name="l121" href="#l121">121 </a> string[idx++] = filechr(move->fromrow);
1.178 +<a class="c2html-lineno" name="l122" href="#l122">122 </a> }
1.179 +<a class="c2html-lineno" name="l123" href="#l123">123 </a> }
1.180 +<a class="c2html-lineno" name="l124" href="#l124">124 </a> }
1.181 +<a class="c2html-lineno" name="l125" href="#l125">125 </a>
1.182 +<a class="c2html-lineno" name="l126" href="#l126">126 </a> <span class="c2html-comment">/* capturing? */</span>
1.183 +<a class="c2html-lineno" name="l127" href="#l127">127 </a> <span class="c2html-keyword">if</span> (move->capture) {
1.184 +<a class="c2html-lineno" name="l128" href="#l128">128 </a> string[idx++] = <span class="c2html-string">'x'</span>;
1.185 +<a class="c2html-lineno" name="l129" href="#l129">129 </a> }
1.186 +<a class="c2html-lineno" name="l130" href="#l130">130 </a>
1.187 +<a class="c2html-lineno" name="l131" href="#l131">131 </a> <span class="c2html-comment">/* destination */</span>
1.188 +<a class="c2html-lineno" name="l132" href="#l132">132 </a> string[idx++] = filechr(move->tofile);
1.189 +<a class="c2html-lineno" name="l133" href="#l133">133 </a> string[idx++] = rowchr(move->torow);
1.190 +<a class="c2html-lineno" name="l134" href="#l134">134 </a>
1.191 +<a class="c2html-lineno" name="l135" href="#l135">135 </a> <span class="c2html-comment">/* promotion? */</span>
1.192 +<a class="c2html-lineno" name="l136" href="#l136">136 </a> <span class="c2html-keyword">if</span> (move->promotion) {
1.193 +<a class="c2html-lineno" name="l137" href="#l137">137 </a> string[idx++] = <span class="c2html-string">'='</span>;
1.194 +<a class="c2html-lineno" name="l138" href="#l138">138 </a> string[idx++] = getpiecechr(move->promotion);
1.195 +<a class="c2html-lineno" name="l139" href="#l139">139 </a> }
1.196 +<a class="c2html-lineno" name="l140" href="#l140">140 </a>
1.197 +<a class="c2html-lineno" name="l141" href="#l141">141 </a> <span class="c2html-comment">/* check? */</span>
1.198 +<a class="c2html-lineno" name="l142" href="#l142">142 </a> <span class="c2html-keyword">if</span> (move->check) {
1.199 +<a class="c2html-lineno" name="l143" href="#l143">143 </a> <span class="c2html-comment">/* works only, if this function is called when applying the move */</span>
1.200 +<a class="c2html-lineno" name="l144" href="#l144">144 </a> string[idx++] = gamestate->checkmate?<span class="c2html-string">'#'</span>:<span class="c2html-string">'+'</span>;
1.201 +<a class="c2html-lineno" name="l145" href="#l145">145 </a> }
1.202 +<a class="c2html-lineno" name="l146" href="#l146">146 </a>}
1.203 +<a class="c2html-lineno" name="l147" href="#l147">147 </a>
1.204 +<a class="c2html-lineno" name="l148" href="#l148">148 </a><span class="c2html-keyword">static</span> <span class="c2html-keyword">void</span> addmove(GameState* gamestate, Move *move) {
1.205 +<a class="c2html-lineno" name="l149" href="#l149">149 </a> MoveList *elem = malloc(<span class="c2html-keyword">sizeof</span>(MoveList));
1.206 +<a class="c2html-lineno" name="l150" href="#l150">150 </a> elem->next = <span class="c2html-macroconst">NULL</span>;
1.207 +<a class="c2html-lineno" name="l151" href="#l151">151 </a> elem->move = *move;
1.208 +<a class="c2html-lineno" name="l152" href="#l152">152 </a>
1.209 +<a class="c2html-lineno" name="l153" href="#l153">153 </a> <span class="c2html-keyword">struct</span> timeval curtimestamp;
1.210 +<a class="c2html-lineno" name="l154" href="#l154">154 </a> gettimeofday(&curtimestamp, <span class="c2html-macroconst">NULL</span>);
1.211 +<a class="c2html-lineno" name="l155" href="#l155">155 </a> elem->move.timestamp.tv_sec = curtimestamp.tv_sec;
1.212 +<a class="c2html-lineno" name="l156" href="#l156">156 </a> elem->move.timestamp.tv_usec = curtimestamp.tv_usec;
1.213 +<a class="c2html-lineno" name="l157" href="#l157">157 </a>
1.214 +<a class="c2html-lineno" name="l158" href="#l158">158 </a> <span class="c2html-keyword">if</span> (gamestate->lastmove) {
1.215 +<a class="c2html-lineno" name="l159" href="#l159">159 </a> <span class="c2html-keyword">struct</span> movetimeval *lasttstamp = &(gamestate->lastmove->move.timestamp);
1.216 +<a class="c2html-lineno" name="l160" href="#l160">160 </a> <span class="c2html-type">uint64_t</span> sec = curtimestamp.tv_sec - lasttstamp->tv_sec;
1.217 +<a class="c2html-lineno" name="l161" href="#l161">161 </a> <span class="c2html-type">suseconds_t</span> micros;
1.218 +<a class="c2html-lineno" name="l162" href="#l162">162 </a> <span class="c2html-keyword">if</span> (curtimestamp.tv_usec < lasttstamp->tv_usec) {
1.219 +<a class="c2html-lineno" name="l163" href="#l163">163 </a> micros = 1e6L-(lasttstamp->tv_usec - curtimestamp.tv_usec);
1.220 +<a class="c2html-lineno" name="l164" href="#l164">164 </a> sec--;
1.221 +<a class="c2html-lineno" name="l165" href="#l165">165 </a> } <span class="c2html-keyword">else</span> {
1.222 +<a class="c2html-lineno" name="l166" href="#l166">166 </a> micros = curtimestamp.tv_usec - lasttstamp->tv_usec;
1.223 +<a class="c2html-lineno" name="l167" href="#l167">167 </a> }
1.224 +<a class="c2html-lineno" name="l168" href="#l168">168 </a>
1.225 +<a class="c2html-lineno" name="l169" href="#l169">169 </a> elem->move.movetime.tv_sec = sec;
1.226 +<a class="c2html-lineno" name="l170" href="#l170">170 </a> elem->move.movetime.tv_usec = micros;
1.227 +<a class="c2html-lineno" name="l171" href="#l171">171 </a>
1.228 +<a class="c2html-lineno" name="l172" href="#l172">172 </a> gamestate->lastmove->next = elem;
1.229 +<a class="c2html-lineno" name="l173" href="#l173">173 </a> gamestate->lastmove = elem;
1.230 +<a class="c2html-lineno" name="l174" href="#l174">174 </a> } <span class="c2html-keyword">else</span> {
1.231 +<a class="c2html-lineno" name="l175" href="#l175">175 </a> elem->move.movetime.tv_usec = <span class="c2html-macroconst">0</span>;
1.232 +<a class="c2html-lineno" name="l176" href="#l176">176 </a> elem->move.movetime.tv_sec = <span class="c2html-macroconst">0</span>;
1.233 +<a class="c2html-lineno" name="l177" href="#l177">177 </a> gamestate->movelist = gamestate->lastmove = elem;
1.234 +<a class="c2html-lineno" name="l178" href="#l178">178 </a> }
1.235 +<a class="c2html-lineno" name="l179" href="#l179">179 </a>}
1.236 +<a class="c2html-lineno" name="l180" href="#l180">180 </a>
1.237 +<a class="c2html-lineno" name="l181" href="#l181">181 </a><span class="c2html-keyword">char</span> getpiecechr(<span class="c2html-type">uint8_t</span> piece) {
1.238 +<a class="c2html-lineno" name="l182" href="#l182">182 </a> <span class="c2html-keyword">switch</span> (piece & <span class="c2html-macroconst">PIECE_MASK</span>) {
1.239 +<a class="c2html-lineno" name="l183" href="#l183">183 </a> <span class="c2html-keyword">case</span> <span class="c2html-macroconst">ROOK</span>: <span class="c2html-keyword">return</span> <span class="c2html-string">'R'</span>;
1.240 +<a class="c2html-lineno" name="l184" href="#l184">184 </a> <span class="c2html-keyword">case</span> <span class="c2html-macroconst">KNIGHT</span>: <span class="c2html-keyword">return</span> <span class="c2html-string">'N'</span>;
1.241 +<a class="c2html-lineno" name="l185" href="#l185">185 </a> <span class="c2html-keyword">case</span> <span class="c2html-macroconst">BISHOP</span>: <span class="c2html-keyword">return</span> <span class="c2html-string">'B'</span>;
1.242 +<a class="c2html-lineno" name="l186" href="#l186">186 </a> <span class="c2html-keyword">case</span> <span class="c2html-macroconst">QUEEN</span>: <span class="c2html-keyword">return</span> <span class="c2html-string">'Q'</span>;
1.243 +<a class="c2html-lineno" name="l187" href="#l187">187 </a> <span class="c2html-keyword">case</span> <span class="c2html-macroconst">KING</span>: <span class="c2html-keyword">return</span> <span class="c2html-string">'K'</span>;
1.244 +<a class="c2html-lineno" name="l188" href="#l188">188 </a> <span class="c2html-keyword">default</span>: <span class="c2html-keyword">return</span> <span class="c2html-string">'\0'</span>;
1.245 +<a class="c2html-lineno" name="l189" href="#l189">189 </a> }
1.246 +<a class="c2html-lineno" name="l190" href="#l190">190 </a>}
1.247 +<a class="c2html-lineno" name="l191" href="#l191">191 </a>
1.248 +<a class="c2html-lineno" name="l192" href="#l192">192 </a><span class="c2html-type">uint8_t</span> getpiece(<span class="c2html-keyword">char</span> c) {
1.249 +<a class="c2html-lineno" name="l193" href="#l193">193 </a> <span class="c2html-keyword">switch</span> (c) {
1.250 +<a class="c2html-lineno" name="l194" href="#l194">194 </a> <span class="c2html-keyword">case</span> <span class="c2html-string">'R'</span>: <span class="c2html-keyword">return</span> <span class="c2html-macroconst">ROOK</span>;
1.251 +<a class="c2html-lineno" name="l195" href="#l195">195 </a> <span class="c2html-keyword">case</span> <span class="c2html-string">'N'</span>: <span class="c2html-keyword">return</span> <span class="c2html-macroconst">KNIGHT</span>;
1.252 +<a class="c2html-lineno" name="l196" href="#l196">196 </a> <span class="c2html-keyword">case</span> <span class="c2html-string">'B'</span>: <span class="c2html-keyword">return</span> <span class="c2html-macroconst">BISHOP</span>;
1.253 +<a class="c2html-lineno" name="l197" href="#l197">197 </a> <span class="c2html-keyword">case</span> <span class="c2html-string">'Q'</span>: <span class="c2html-keyword">return</span> <span class="c2html-macroconst">QUEEN</span>;
1.254 +<a class="c2html-lineno" name="l198" href="#l198">198 </a> <span class="c2html-keyword">case</span> <span class="c2html-string">'K'</span>: <span class="c2html-keyword">return</span> <span class="c2html-macroconst">KING</span>;
1.255 +<a class="c2html-lineno" name="l199" href="#l199">199 </a> <span class="c2html-keyword">default</span>: <span class="c2html-keyword">return</span> <span class="c2html-macroconst">0</span>;
1.256 +<a class="c2html-lineno" name="l200" href="#l200">200 </a> }
1.257 +<a class="c2html-lineno" name="l201" href="#l201">201 </a>}
1.258 +<a class="c2html-lineno" name="l202" href="#l202">202 </a>
1.259 +<a class="c2html-lineno" name="l203" href="#l203">203 </a><span class="c2html-keyword">static</span> <span class="c2html-keyword">void</span> apply_move_impl(GameState *gamestate, Move *move, _Bool simulate) {
1.260 +<a class="c2html-lineno" name="l204" href="#l204">204 </a> <span class="c2html-type">uint8_t</span> piece = move->piece & <span class="c2html-macroconst">PIECE_MASK</span>;
1.261 +<a class="c2html-lineno" name="l205" href="#l205">205 </a> <span class="c2html-type">uint8_t</span> color = move->piece & <span class="c2html-macroconst">COLOR_MASK</span>;
1.262 +<a class="c2html-lineno" name="l206" href="#l206">206 </a>
1.263 +<a class="c2html-lineno" name="l207" href="#l207">207 </a> <span class="c2html-comment">/* en passant capture */</span>
1.264 +<a class="c2html-lineno" name="l208" href="#l208">208 </a> <span class="c2html-keyword">if</span> (move->capture && piece == <span class="c2html-macroconst">PAWN</span> &&
1.265 +<a class="c2html-lineno" name="l209" href="#l209">209 </a> mdst(gamestate->board, move) == <span class="c2html-macroconst">0</span>) {
1.266 +<a class="c2html-lineno" name="l210" href="#l210">210 </a> gamestate->board[move->fromrow][move->tofile] = <span class="c2html-macroconst">0</span>;
1.267 +<a class="c2html-lineno" name="l211" href="#l211">211 </a> }
1.268 +<a class="c2html-lineno" name="l212" href="#l212">212 </a>
1.269 +<a class="c2html-lineno" name="l213" href="#l213">213 </a> <span class="c2html-comment">/* remove old en passant threats */</span>
1.270 +<a class="c2html-lineno" name="l214" href="#l214">214 </a> <span class="c2html-keyword">for</span> (<span class="c2html-type">uint8_t</span> file = <span class="c2html-macroconst">0</span> ; file < <span class="c2html-macroconst">8</span> ; file++) {
1.271 +<a class="c2html-lineno" name="l215" href="#l215">215 </a> gamestate->board[<span class="c2html-macroconst">3</span>][file] &= ~<span class="c2html-macroconst">ENPASSANT_THREAT</span>;
1.272 +<a class="c2html-lineno" name="l216" href="#l216">216 </a> gamestate->board[<span class="c2html-macroconst">4</span>][file] &= ~<span class="c2html-macroconst">ENPASSANT_THREAT</span>;
1.273 +<a class="c2html-lineno" name="l217" href="#l217">217 </a> }
1.274 +<a class="c2html-lineno" name="l218" href="#l218">218 </a>
1.275 +<a class="c2html-lineno" name="l219" href="#l219">219 </a> <span class="c2html-comment">/* add new en passant threat */</span>
1.276 +<a class="c2html-lineno" name="l220" href="#l220">220 </a> <span class="c2html-keyword">if</span> (piece == <span class="c2html-macroconst">PAWN</span> && (
1.277 +<a class="c2html-lineno" name="l221" href="#l221">221 </a> (move->fromrow == <span class="c2html-macroconst">1</span> && move->torow == <span class="c2html-macroconst">3</span>) ||
1.278 +<a class="c2html-lineno" name="l222" href="#l222">222 </a> (move->fromrow == <span class="c2html-macroconst">6</span> && move->torow == <span class="c2html-macroconst">4</span>))) {
1.279 +<a class="c2html-lineno" name="l223" href="#l223">223 </a> move->piece |= <span class="c2html-macroconst">ENPASSANT_THREAT</span>;
1.280 +<a class="c2html-lineno" name="l224" href="#l224">224 </a> }
1.281 +<a class="c2html-lineno" name="l225" href="#l225">225 </a>
1.282 +<a class="c2html-lineno" name="l226" href="#l226">226 </a> <span class="c2html-comment">/* move (and maybe capture or promote) */</span>
1.283 +<a class="c2html-lineno" name="l227" href="#l227">227 </a> msrc(gamestate->board, move) = <span class="c2html-macroconst">0</span>;
1.284 +<a class="c2html-lineno" name="l228" href="#l228">228 </a> <span class="c2html-keyword">if</span> (move->promotion) {
1.285 +<a class="c2html-lineno" name="l229" href="#l229">229 </a> mdst(gamestate->board, move) = move->promotion;
1.286 +<a class="c2html-lineno" name="l230" href="#l230">230 </a> } <span class="c2html-keyword">else</span> {
1.287 +<a class="c2html-lineno" name="l231" href="#l231">231 </a> mdst(gamestate->board, move) = move->piece;
1.288 +<a class="c2html-lineno" name="l232" href="#l232">232 </a> }
1.289 +<a class="c2html-lineno" name="l233" href="#l233">233 </a>
1.290 +<a class="c2html-lineno" name="l234" href="#l234">234 </a> <span class="c2html-comment">/* castling */</span>
1.291 +<a class="c2html-lineno" name="l235" href="#l235">235 </a> <span class="c2html-keyword">if</span> (piece == <span class="c2html-macroconst">KING</span> && move->fromfile == fileidx(<span class="c2html-string">'e'</span>)) {
1.292 +<a class="c2html-lineno" name="l236" href="#l236">236 </a>
1.293 +<a class="c2html-lineno" name="l237" href="#l237">237 </a> <span class="c2html-keyword">if</span> (move->tofile == fileidx(<span class="c2html-string">'g'</span>)) {
1.294 +<a class="c2html-lineno" name="l238" href="#l238">238 </a> gamestate->board[move->torow][fileidx(<span class="c2html-string">'h'</span>)] = <span class="c2html-macroconst">0</span>;
1.295 +<a class="c2html-lineno" name="l239" href="#l239">239 </a> gamestate->board[move->torow][fileidx(<span class="c2html-string">'f'</span>)] = color|<span class="c2html-macroconst">ROOK</span>;
1.296 +<a class="c2html-lineno" name="l240" href="#l240">240 </a> } <span class="c2html-keyword">else</span> <span class="c2html-keyword">if</span> (move->tofile == fileidx(<span class="c2html-string">'c'</span>)) {
1.297 +<a class="c2html-lineno" name="l241" href="#l241">241 </a> gamestate->board[move->torow][fileidx(<span class="c2html-string">'a'</span>)] = <span class="c2html-macroconst">0</span>;
1.298 +<a class="c2html-lineno" name="l242" href="#l242">242 </a> gamestate->board[move->torow][fileidx(<span class="c2html-string">'d'</span>)] = color|<span class="c2html-macroconst">ROOK</span>;
1.299 +<a class="c2html-lineno" name="l243" href="#l243">243 </a> }
1.300 +<a class="c2html-lineno" name="l244" href="#l244">244 </a> }
1.301 +<a class="c2html-lineno" name="l245" href="#l245">245 </a>
1.302 +<a class="c2html-lineno" name="l246" href="#l246">246 </a> <span class="c2html-keyword">if</span> (!simulate) {
1.303 +<a class="c2html-lineno" name="l247" href="#l247">247 </a> <span class="c2html-keyword">if</span> (!move->string[<span class="c2html-macroconst">0</span>]) {
1.304 +<a class="c2html-lineno" name="l248" href="#l248">248 </a> format_move(gamestate, move);
1.305 +<a class="c2html-lineno" name="l249" href="#l249">249 </a> }
1.306 +<a class="c2html-lineno" name="l250" href="#l250">250 </a> }
1.307 +<a class="c2html-lineno" name="l251" href="#l251">251 </a> <span class="c2html-comment">/* add move, even in simulation (checkmate test needs it) */</span>
1.308 +<a class="c2html-lineno" name="l252" href="#l252">252 </a> addmove(gamestate, move);
1.309 +<a class="c2html-lineno" name="l253" href="#l253">253 </a>}
1.310 +<a class="c2html-lineno" name="l254" href="#l254">254 </a>
1.311 +<a class="c2html-lineno" name="l255" href="#l255">255 </a><span class="c2html-keyword">void</span> apply_move(GameState *gamestate, Move *move) {
1.312 +<a class="c2html-lineno" name="l256" href="#l256">256 </a> apply_move_impl(gamestate, move, <span class="c2html-macroconst">0</span>);
1.313 +<a class="c2html-lineno" name="l257" href="#l257">257 </a>}
1.314 +<a class="c2html-lineno" name="l258" href="#l258">258 </a>
1.315 +<a class="c2html-lineno" name="l259" href="#l259">259 </a><span class="c2html-keyword">static</span> <span class="c2html-keyword">int</span> validate_move_rules(GameState *gamestate, Move *move) {
1.316 +<a class="c2html-lineno" name="l260" href="#l260">260 </a> <span class="c2html-comment">/* validate indices (don't trust opponent) */</span>
1.317 +<a class="c2html-lineno" name="l261" href="#l261">261 </a> <span class="c2html-keyword">if</span> (!chkidx(move)) {
1.318 +<a class="c2html-lineno" name="l262" href="#l262">262 </a> <span class="c2html-keyword">return</span> <span class="c2html-macroconst">INVALID_POSITION</span>;
1.319 +<a class="c2html-lineno" name="l263" href="#l263">263 </a> }
1.320 +<a class="c2html-lineno" name="l264" href="#l264">264 </a>
1.321 +<a class="c2html-lineno" name="l265" href="#l265">265 </a> <span class="c2html-comment">/* must move */</span>
1.322 +<a class="c2html-lineno" name="l266" href="#l266">266 </a> <span class="c2html-keyword">if</span> (move->fromfile == move->tofile && move->fromrow == move->torow) {
1.323 +<a class="c2html-lineno" name="l267" href="#l267">267 </a> <span class="c2html-keyword">return</span> <span class="c2html-macroconst">INVALID_MOVE_SYNTAX</span>;
1.324 +<a class="c2html-lineno" name="l268" href="#l268">268 </a> }
1.325 +<a class="c2html-lineno" name="l269" href="#l269">269 </a>
1.326 +<a class="c2html-lineno" name="l270" href="#l270">270 </a> <span class="c2html-comment">/* does piece exist */</span>
1.327 +<a class="c2html-lineno" name="l271" href="#l271">271 </a> <span class="c2html-keyword">if</span> ((msrc(gamestate->board, move)&(<span class="c2html-macroconst">PIECE_MASK</span>|<span class="c2html-macroconst">COLOR_MASK</span>))
1.328 +<a class="c2html-lineno" name="l272" href="#l272">272 </a> != (move->piece&(<span class="c2html-macroconst">PIECE_MASK</span>|<span class="c2html-macroconst">COLOR_MASK</span>))) {
1.329 +<a class="c2html-lineno" name="l273" href="#l273">273 </a> <span class="c2html-keyword">return</span> <span class="c2html-macroconst">INVALID_POSITION</span>;
1.330 +<a class="c2html-lineno" name="l274" href="#l274">274 </a> }
1.331 +<a class="c2html-lineno" name="l275" href="#l275">275 </a>
1.332 +<a class="c2html-lineno" name="l276" href="#l276">276 </a> <span class="c2html-comment">/* can't capture own pieces */</span>
1.333 +<a class="c2html-lineno" name="l277" href="#l277">277 </a> <span class="c2html-keyword">if</span> ((mdst(gamestate->board, move) & <span class="c2html-macroconst">COLOR_MASK</span>)
1.334 +<a class="c2html-lineno" name="l278" href="#l278">278 </a> == (move->piece & <span class="c2html-macroconst">COLOR_MASK</span>)) {
1.335 +<a class="c2html-lineno" name="l279" href="#l279">279 </a> <span class="c2html-keyword">return</span> <span class="c2html-macroconst">RULES_VIOLATED</span>;
1.336 +<a class="c2html-lineno" name="l280" href="#l280">280 </a> }
1.337 +<a class="c2html-lineno" name="l281" href="#l281">281 </a>
1.338 +<a class="c2html-lineno" name="l282" href="#l282">282 </a> <span class="c2html-comment">/* must capture, if and only if destination is occupied */</span>
1.339 +<a class="c2html-lineno" name="l283" href="#l283">283 </a> <span class="c2html-keyword">if</span> ((mdst(gamestate->board, move) == <span class="c2html-macroconst">0</span> && move->capture) ||
1.340 +<a class="c2html-lineno" name="l284" href="#l284">284 </a> (mdst(gamestate->board, move) != <span class="c2html-macroconst">0</span> && !move->capture)) {
1.341 +<a class="c2html-lineno" name="l285" href="#l285">285 </a> <span class="c2html-keyword">return</span> <span class="c2html-macroconst">INVALID_MOVE_SYNTAX</span>;
1.342 +<a class="c2html-lineno" name="l286" href="#l286">286 </a> }
1.343 +<a class="c2html-lineno" name="l287" href="#l287">287 </a>
1.344 +<a class="c2html-lineno" name="l288" href="#l288">288 </a> <span class="c2html-comment">/* validate individual rules */</span>
1.345 +<a class="c2html-lineno" name="l289" href="#l289">289 </a> _Bool chkrules;
1.346 +<a class="c2html-lineno" name="l290" href="#l290">290 </a> <span class="c2html-keyword">switch</span> (move->piece & <span class="c2html-macroconst">PIECE_MASK</span>) {
1.347 +<a class="c2html-lineno" name="l291" href="#l291">291 </a> <span class="c2html-keyword">case</span> <span class="c2html-macroconst">PAWN</span>:
1.348 +<a class="c2html-lineno" name="l292" href="#l292">292 </a> chkrules = pawn_chkrules(gamestate, move) &&
1.349 +<a class="c2html-lineno" name="l293" href="#l293">293 </a> !pawn_isblocked(gamestate, move);
1.350 +<a class="c2html-lineno" name="l294" href="#l294">294 </a> <span class="c2html-keyword">break</span>;
1.351 +<a class="c2html-lineno" name="l295" href="#l295">295 </a> <span class="c2html-keyword">case</span> <span class="c2html-macroconst">ROOK</span>:
1.352 +<a class="c2html-lineno" name="l296" href="#l296">296 </a> chkrules = rook_chkrules(move) &&
1.353 +<a class="c2html-lineno" name="l297" href="#l297">297 </a> !rook_isblocked(gamestate, move);
1.354 +<a class="c2html-lineno" name="l298" href="#l298">298 </a> <span class="c2html-keyword">break</span>;
1.355 +<a class="c2html-lineno" name="l299" href="#l299">299 </a> <span class="c2html-keyword">case</span> <span class="c2html-macroconst">KNIGHT</span>:
1.356 +<a class="c2html-lineno" name="l300" href="#l300">300 </a> chkrules = knight_chkrules(move); <span class="c2html-comment">/* knight is never blocked */</span>
1.357 +<a class="c2html-lineno" name="l301" href="#l301">301 </a> <span class="c2html-keyword">break</span>;
1.358 +<a class="c2html-lineno" name="l302" href="#l302">302 </a> <span class="c2html-keyword">case</span> <span class="c2html-macroconst">BISHOP</span>:
1.359 +<a class="c2html-lineno" name="l303" href="#l303">303 </a> chkrules = bishop_chkrules(move) &&
1.360 +<a class="c2html-lineno" name="l304" href="#l304">304 </a> !bishop_isblocked(gamestate, move);
1.361 +<a class="c2html-lineno" name="l305" href="#l305">305 </a> <span class="c2html-keyword">break</span>;
1.362 +<a class="c2html-lineno" name="l306" href="#l306">306 </a> <span class="c2html-keyword">case</span> <span class="c2html-macroconst">QUEEN</span>:
1.363 +<a class="c2html-lineno" name="l307" href="#l307">307 </a> chkrules = queen_chkrules(move) &&
1.364 +<a class="c2html-lineno" name="l308" href="#l308">308 </a> !queen_isblocked(gamestate, move);
1.365 +<a class="c2html-lineno" name="l309" href="#l309">309 </a> <span class="c2html-keyword">break</span>;
1.366 +<a class="c2html-lineno" name="l310" href="#l310">310 </a> <span class="c2html-keyword">case</span> <span class="c2html-macroconst">KING</span>:
1.367 +<a class="c2html-lineno" name="l311" href="#l311">311 </a> chkrules = king_chkrules(gamestate, move) &&
1.368 +<a class="c2html-lineno" name="l312" href="#l312">312 </a> !king_isblocked(gamestate, move);
1.369 +<a class="c2html-lineno" name="l313" href="#l313">313 </a> <span class="c2html-keyword">break</span>;
1.370 +<a class="c2html-lineno" name="l314" href="#l314">314 </a> <span class="c2html-keyword">default</span>:
1.371 +<a class="c2html-lineno" name="l315" href="#l315">315 </a> <span class="c2html-keyword">return</span> <span class="c2html-macroconst">INVALID_MOVE_SYNTAX</span>;
1.372 +<a class="c2html-lineno" name="l316" href="#l316">316 </a> }
1.373 +<a class="c2html-lineno" name="l317" href="#l317">317 </a>
1.374 +<a class="c2html-lineno" name="l318" href="#l318">318 </a> <span class="c2html-keyword">return</span> chkrules ? <span class="c2html-macroconst">VALID_MOVE_SEMANTICS</span> : <span class="c2html-macroconst">RULES_VIOLATED</span>;
1.375 +<a class="c2html-lineno" name="l319" href="#l319">319 </a>}
1.376 +<a class="c2html-lineno" name="l320" href="#l320">320 </a>
1.377 +<a class="c2html-lineno" name="l321" href="#l321">321 </a><span class="c2html-keyword">int</span> validate_move(GameState *gamestate, Move *move) {
1.378 +<a class="c2html-lineno" name="l322" href="#l322">322 </a>
1.379 +<a class="c2html-lineno" name="l323" href="#l323">323 </a> <span class="c2html-keyword">int</span> result = validate_move_rules(gamestate, move);
1.380 +<a class="c2html-lineno" name="l324" href="#l324">324 </a>
1.381 +<a class="c2html-lineno" name="l325" href="#l325">325 </a> <span class="c2html-comment">/* cancel processing to save resources */</span>
1.382 +<a class="c2html-lineno" name="l326" href="#l326">326 </a> <span class="c2html-keyword">if</span> (result != <span class="c2html-macroconst">VALID_MOVE_SEMANTICS</span>) {
1.383 +<a class="c2html-lineno" name="l327" href="#l327">327 </a> <span class="c2html-keyword">return</span> result;
1.384 +<a class="c2html-lineno" name="l328" href="#l328">328 </a> }
1.385 +<a class="c2html-lineno" name="l329" href="#l329">329 </a>
1.386 +<a class="c2html-lineno" name="l330" href="#l330">330 </a> <span class="c2html-comment">/* find kings for check validation */</span>
1.387 +<a class="c2html-lineno" name="l331" href="#l331">331 </a> <span class="c2html-type">uint8_t</span> piececolor = (move->piece & <span class="c2html-macroconst">COLOR_MASK</span>);
1.388 +<a class="c2html-lineno" name="l332" href="#l332">332 </a>
1.389 +<a class="c2html-lineno" name="l333" href="#l333">333 </a> <span class="c2html-type">uint8_t</span> mykingfile = <span class="c2html-macroconst">0</span>, mykingrow = <span class="c2html-macroconst">0</span>, opkingfile = <span class="c2html-macroconst">0</span>, opkingrow = <span class="c2html-macroconst">0</span>;
1.390 +<a class="c2html-lineno" name="l334" href="#l334">334 </a> <span class="c2html-keyword">for</span> (<span class="c2html-type">uint8_t</span> row = <span class="c2html-macroconst">0</span> ; row < <span class="c2html-macroconst">8</span> ; row++) {
1.391 +<a class="c2html-lineno" name="l335" href="#l335">335 </a> <span class="c2html-keyword">for</span> (<span class="c2html-type">uint8_t</span> file = <span class="c2html-macroconst">0</span> ; file < <span class="c2html-macroconst">8</span> ; file++) {
1.392 +<a class="c2html-lineno" name="l336" href="#l336">336 </a> <span class="c2html-keyword">if</span> (gamestate->board[row][file] ==
1.393 +<a class="c2html-lineno" name="l337" href="#l337">337 </a> (piececolor == <span class="c2html-macroconst">WHITE</span>?<span class="c2html-macroconst">WKING</span>:<span class="c2html-macroconst">BKING</span>)) {
1.394 +<a class="c2html-lineno" name="l338" href="#l338">338 </a> mykingfile = file;
1.395 +<a class="c2html-lineno" name="l339" href="#l339">339 </a> mykingrow = row;
1.396 +<a class="c2html-lineno" name="l340" href="#l340">340 </a> } <span class="c2html-keyword">else</span> <span class="c2html-keyword">if</span> (gamestate->board[row][file] ==
1.397 +<a class="c2html-lineno" name="l341" href="#l341">341 </a> (piececolor == <span class="c2html-macroconst">WHITE</span>?<span class="c2html-macroconst">BKING</span>:<span class="c2html-macroconst">WKING</span>)) {
1.398 +<a class="c2html-lineno" name="l342" href="#l342">342 </a> opkingfile = file;
1.399 +<a class="c2html-lineno" name="l343" href="#l343">343 </a> opkingrow = row;
1.400 +<a class="c2html-lineno" name="l344" href="#l344">344 </a> }
1.401 +<a class="c2html-lineno" name="l345" href="#l345">345 </a> }
1.402 +<a class="c2html-lineno" name="l346" href="#l346">346 </a> }
1.403 +<a class="c2html-lineno" name="l347" href="#l347">347 </a>
1.404 +<a class="c2html-lineno" name="l348" href="#l348">348 </a> <span class="c2html-comment">/* simulate move for check validation */</span>
1.405 +<a class="c2html-lineno" name="l349" href="#l349">349 </a> GameState simulation = gamestate_copy_sim(gamestate);
1.406 +<a class="c2html-lineno" name="l350" href="#l350">350 </a> Move simmove = *move;
1.407 +<a class="c2html-lineno" name="l351" href="#l351">351 </a> apply_move_impl(&simulation, &simmove, <span class="c2html-macroconst">1</span>);
1.408 +<a class="c2html-lineno" name="l352" href="#l352">352 </a>
1.409 +<a class="c2html-lineno" name="l353" href="#l353">353 </a> <span class="c2html-comment">/* don't move into or stay in check position */</span>
1.410 +<a class="c2html-lineno" name="l354" href="#l354">354 </a> <span class="c2html-keyword">if</span> (is_covered(&simulation, mykingrow, mykingfile,
1.411 +<a class="c2html-lineno" name="l355" href="#l355">355 </a> opponent_color(piececolor))) {
1.412 +<a class="c2html-lineno" name="l356" href="#l356">356 </a>
1.413 +<a class="c2html-lineno" name="l357" href="#l357">357 </a> gamestate_cleanup(&simulation);
1.414 +<a class="c2html-lineno" name="l358" href="#l358">358 </a> <span class="c2html-keyword">if</span> ((move->piece & <span class="c2html-macroconst">PIECE_MASK</span>) == <span class="c2html-macroconst">KING</span>) {
1.415 +<a class="c2html-lineno" name="l359" href="#l359">359 </a> <span class="c2html-keyword">return</span> <span class="c2html-macroconst">KING_MOVES_INTO_CHECK</span>;
1.416 +<a class="c2html-lineno" name="l360" href="#l360">360 </a> } <span class="c2html-keyword">else</span> {
1.417 +<a class="c2html-lineno" name="l361" href="#l361">361 </a> <span class="c2html-comment">/* last move is always not null in this case */</span>
1.418 +<a class="c2html-lineno" name="l362" href="#l362">362 </a> <span class="c2html-keyword">return</span> gamestate->lastmove->move.check ?
1.419 +<a class="c2html-lineno" name="l363" href="#l363">363 </a> <span class="c2html-macroconst">KING_IN_CHECK</span> : <span class="c2html-macroconst">PIECE_PINNED</span>;
1.420 +<a class="c2html-lineno" name="l364" href="#l364">364 </a> }
1.421 +<a class="c2html-lineno" name="l365" href="#l365">365 </a> }
1.422 +<a class="c2html-lineno" name="l366" href="#l366">366 </a>
1.423 +<a class="c2html-lineno" name="l367" href="#l367">367 </a> <span class="c2html-comment">/* correct check and checkmate flags (move is still valid) */</span>
1.424 +<a class="c2html-lineno" name="l368" href="#l368">368 </a> Move threats[<span class="c2html-macroconst">16</span>];
1.425 +<a class="c2html-lineno" name="l369" href="#l369">369 </a> <span class="c2html-type">uint8_t</span> threatcount;
1.426 +<a class="c2html-lineno" name="l370" href="#l370">370 </a> move->check = get_threats(&simulation, opkingrow, opkingfile,
1.427 +<a class="c2html-lineno" name="l371" href="#l371">371 </a> piececolor, threats, &threatcount);
1.428 +<a class="c2html-lineno" name="l372" href="#l372">372 </a>
1.429 +<a class="c2html-lineno" name="l373" href="#l373">373 </a> <span class="c2html-keyword">if</span> (move->check) {
1.430 +<a class="c2html-lineno" name="l374" href="#l374">374 </a> <span class="c2html-comment">/* determine possible escape fields */</span>
1.431 +<a class="c2html-lineno" name="l375" href="#l375">375 </a> _Bool canescape = <span class="c2html-macroconst">0</span>;
1.432 +<a class="c2html-lineno" name="l376" href="#l376">376 </a> <span class="c2html-keyword">for</span> (<span class="c2html-keyword">int</span> dr = -<span class="c2html-macroconst">1</span> ; dr <= <span class="c2html-macroconst">1</span> && !canescape ; dr++) {
1.433 +<a class="c2html-lineno" name="l377" href="#l377">377 </a> <span class="c2html-keyword">for</span> (<span class="c2html-keyword">int</span> df = -<span class="c2html-macroconst">1</span> ; df <= <span class="c2html-macroconst">1</span> && !canescape ; df++) {
1.434 +<a class="c2html-lineno" name="l378" href="#l378">378 </a> <span class="c2html-keyword">if</span> (!(dr == <span class="c2html-macroconst">0</span> && df == <span class="c2html-macroconst">0</span>) &&
1.435 +<a class="c2html-lineno" name="l379" href="#l379">379 </a> isidx(opkingrow + dr) && isidx(opkingfile + df)) {
1.436 +<a class="c2html-lineno" name="l380" href="#l380">380 </a>
1.437 +<a class="c2html-lineno" name="l381" href="#l381">381 </a> <span class="c2html-comment">/* escape field neither blocked nor covered */</span>
1.438 +<a class="c2html-lineno" name="l382" href="#l382">382 </a> <span class="c2html-keyword">if</span> ((simulation.board[opkingrow + dr][opkingfile + df]
1.439 +<a class="c2html-lineno" name="l383" href="#l383">383 </a> & <span class="c2html-macroconst">COLOR_MASK</span>) != opponent_color(piececolor)) {
1.440 +<a class="c2html-lineno" name="l384" href="#l384">384 </a> canescape |= !is_covered(&simulation,
1.441 +<a class="c2html-lineno" name="l385" href="#l385">385 </a> opkingrow + dr, opkingfile + df, piececolor);
1.442 +<a class="c2html-lineno" name="l386" href="#l386">386 </a> }
1.443 +<a class="c2html-lineno" name="l387" href="#l387">387 </a> }
1.444 +<a class="c2html-lineno" name="l388" href="#l388">388 </a> }
1.445 +<a class="c2html-lineno" name="l389" href="#l389">389 </a> }
1.446 +<a class="c2html-lineno" name="l390" href="#l390">390 </a> <span class="c2html-comment">/* can't escape, can he capture? */</span>
1.447 +<a class="c2html-lineno" name="l391" href="#l391">391 </a> <span class="c2html-keyword">if</span> (!canescape && threatcount == <span class="c2html-macroconst">1</span>) {
1.448 +<a class="c2html-lineno" name="l392" href="#l392">392 </a> canescape = is_attacked(&simulation, threats[<span class="c2html-macroconst">0</span>].fromrow,
1.449 +<a class="c2html-lineno" name="l393" href="#l393">393 </a> threats[<span class="c2html-macroconst">0</span>].fromfile, opponent_color(piececolor));
1.450 +<a class="c2html-lineno" name="l394" href="#l394">394 </a> }
1.451 +<a class="c2html-lineno" name="l395" href="#l395">395 </a>
1.452 +<a class="c2html-lineno" name="l396" href="#l396">396 </a> <span class="c2html-comment">/* can't capture, can he block? */</span>
1.453 +<a class="c2html-lineno" name="l397" href="#l397">397 </a> <span class="c2html-keyword">if</span> (!canescape && threatcount == <span class="c2html-macroconst">1</span>) {
1.454 +<a class="c2html-lineno" name="l398" href="#l398">398 </a> Move *threat = &(threats[<span class="c2html-macroconst">0</span>]);
1.455 +<a class="c2html-lineno" name="l399" href="#l399">399 </a> <span class="c2html-type">uint8_t</span> threatpiece = threat->piece & <span class="c2html-macroconst">PIECE_MASK</span>;
1.456 +<a class="c2html-lineno" name="l400" href="#l400">400 </a>
1.457 +<a class="c2html-lineno" name="l401" href="#l401">401 </a> <span class="c2html-comment">/* knight, pawns and the king cannot be blocked */</span>
1.458 +<a class="c2html-lineno" name="l402" href="#l402">402 </a> <span class="c2html-keyword">if</span> (threatpiece == <span class="c2html-macroconst">BISHOP</span> || threatpiece == <span class="c2html-macroconst">ROOK</span>
1.459 +<a class="c2html-lineno" name="l403" href="#l403">403 </a> || threatpiece == <span class="c2html-macroconst">QUEEN</span>) {
1.460 +<a class="c2html-lineno" name="l404" href="#l404">404 </a> <span class="c2html-keyword">if</span> (threat->fromrow == threat->torow) {
1.461 +<a class="c2html-lineno" name="l405" href="#l405">405 </a> <span class="c2html-comment">/* rook aspect (on row) */</span>
1.462 +<a class="c2html-lineno" name="l406" href="#l406">406 </a> <span class="c2html-keyword">int</span> d = threat->tofile > threat->fromfile ? <span class="c2html-macroconst">1</span> : -<span class="c2html-macroconst">1</span>;
1.463 +<a class="c2html-lineno" name="l407" href="#l407">407 </a> <span class="c2html-type">uint8_t</span> file = threat->fromfile;
1.464 +<a class="c2html-lineno" name="l408" href="#l408">408 </a> <span class="c2html-keyword">while</span> (!canescape && file != threat->tofile - d) {
1.465 +<a class="c2html-lineno" name="l409" href="#l409">409 </a> file += d;
1.466 +<a class="c2html-lineno" name="l410" href="#l410">410 </a> canescape |= is_protected(&simulation,
1.467 +<a class="c2html-lineno" name="l411" href="#l411">411 </a> threat->torow, file, opponent_color(piececolor));
1.468 +<a class="c2html-lineno" name="l412" href="#l412">412 </a> }
1.469 +<a class="c2html-lineno" name="l413" href="#l413">413 </a> } <span class="c2html-keyword">else</span> <span class="c2html-keyword">if</span> (threat->fromfile == threat->tofile) {
1.470 +<a class="c2html-lineno" name="l414" href="#l414">414 </a> <span class="c2html-comment">/* rook aspect (on file) */</span>
1.471 +<a class="c2html-lineno" name="l415" href="#l415">415 </a> <span class="c2html-keyword">int</span> d = threat->torow > threat->fromrow ? <span class="c2html-macroconst">1</span> : -<span class="c2html-macroconst">1</span>;
1.472 +<a class="c2html-lineno" name="l416" href="#l416">416 </a> <span class="c2html-type">uint8_t</span> row = threat->fromrow;
1.473 +<a class="c2html-lineno" name="l417" href="#l417">417 </a> <span class="c2html-keyword">while</span> (!canescape && row != threat->torow - d) {
1.474 +<a class="c2html-lineno" name="l418" href="#l418">418 </a> row += d;
1.475 +<a class="c2html-lineno" name="l419" href="#l419">419 </a> canescape |= is_protected(&simulation,
1.476 +<a class="c2html-lineno" name="l420" href="#l420">420 </a> row, threat->tofile, opponent_color(piececolor));
1.477 +<a class="c2html-lineno" name="l421" href="#l421">421 </a> }
1.478 +<a class="c2html-lineno" name="l422" href="#l422">422 </a> } <span class="c2html-keyword">else</span> {
1.479 +<a class="c2html-lineno" name="l423" href="#l423">423 </a> <span class="c2html-comment">/* bishop aspect */</span>
1.480 +<a class="c2html-lineno" name="l424" href="#l424">424 </a> <span class="c2html-keyword">int</span> dr = threat->torow > threat->fromrow ? <span class="c2html-macroconst">1</span> : -<span class="c2html-macroconst">1</span>;
1.481 +<a class="c2html-lineno" name="l425" href="#l425">425 </a> <span class="c2html-keyword">int</span> df = threat->tofile > threat->fromfile ? <span class="c2html-macroconst">1</span> : -<span class="c2html-macroconst">1</span>;
1.482 +<a class="c2html-lineno" name="l426" href="#l426">426 </a>
1.483 +<a class="c2html-lineno" name="l427" href="#l427">427 </a> <span class="c2html-type">uint8_t</span> row = threat->fromrow;
1.484 +<a class="c2html-lineno" name="l428" href="#l428">428 </a> <span class="c2html-type">uint8_t</span> file = threat->fromfile;
1.485 +<a class="c2html-lineno" name="l429" href="#l429">429 </a> <span class="c2html-keyword">while</span> (!canescape && file != threat->tofile - df
1.486 +<a class="c2html-lineno" name="l430" href="#l430">430 </a> && row != threat->torow - dr) {
1.487 +<a class="c2html-lineno" name="l431" href="#l431">431 </a> row += dr;
1.488 +<a class="c2html-lineno" name="l432" href="#l432">432 </a> file += df;
1.489 +<a class="c2html-lineno" name="l433" href="#l433">433 </a> canescape |= is_protected(&simulation, row, file,
1.490 +<a class="c2html-lineno" name="l434" href="#l434">434 </a> opponent_color(piececolor));
1.491 +<a class="c2html-lineno" name="l435" href="#l435">435 </a> }
1.492 +<a class="c2html-lineno" name="l436" href="#l436">436 </a> }
1.493 +<a class="c2html-lineno" name="l437" href="#l437">437 </a> }
1.494 +<a class="c2html-lineno" name="l438" href="#l438">438 </a> }
1.495 +<a class="c2html-lineno" name="l439" href="#l439">439 </a>
1.496 +<a class="c2html-lineno" name="l440" href="#l440">440 </a> <span class="c2html-keyword">if</span> (!canescape) {
1.497 +<a class="c2html-lineno" name="l441" href="#l441">441 </a> gamestate->checkmate = <span class="c2html-macroconst">1</span>;
1.498 +<a class="c2html-lineno" name="l442" href="#l442">442 </a> }
1.499 +<a class="c2html-lineno" name="l443" href="#l443">443 </a> }
1.500 +<a class="c2html-lineno" name="l444" href="#l444">444 </a>
1.501 +<a class="c2html-lineno" name="l445" href="#l445">445 </a> gamestate_cleanup(&simulation);
1.502 +<a class="c2html-lineno" name="l446" href="#l446">446 </a>
1.503 +<a class="c2html-lineno" name="l447" href="#l447">447 </a> <span class="c2html-keyword">return</span> <span class="c2html-macroconst">VALID_MOVE_SEMANTICS</span>;
1.504 +<a class="c2html-lineno" name="l448" href="#l448">448 </a>}
1.505 +<a class="c2html-lineno" name="l449" href="#l449">449 </a>
1.506 +<a class="c2html-lineno" name="l450" href="#l450">450 </a>_Bool get_threats(GameState *gamestate, <span class="c2html-type">uint8_t</span> row, <span class="c2html-type">uint8_t</span> file,
1.507 +<a class="c2html-lineno" name="l451" href="#l451">451 </a> <span class="c2html-type">uint8_t</span> color, Move *threats, <span class="c2html-type">uint8_t</span> *threatcount) {
1.508 +<a class="c2html-lineno" name="l452" href="#l452">452 </a> Move candidates[<span class="c2html-macroconst">32</span>];
1.509 +<a class="c2html-lineno" name="l453" href="#l453">453 </a> <span class="c2html-keyword">int</span> candidatecount = <span class="c2html-macroconst">0</span>;
1.510 +<a class="c2html-lineno" name="l454" href="#l454">454 </a> <span class="c2html-keyword">for</span> (<span class="c2html-type">uint8_t</span> r = <span class="c2html-macroconst">0</span> ; r < <span class="c2html-macroconst">8</span> ; r++) {
1.511 +<a class="c2html-lineno" name="l455" href="#l455">455 </a> <span class="c2html-keyword">for</span> (<span class="c2html-type">uint8_t</span> f = <span class="c2html-macroconst">0</span> ; f < <span class="c2html-macroconst">8</span> ; f++) {
1.512 +<a class="c2html-lineno" name="l456" href="#l456">456 </a> <span class="c2html-keyword">if</span> ((gamestate->board[r][f] & <span class="c2html-macroconst">COLOR_MASK</span>) == color) {
1.513 +<a class="c2html-lineno" name="l457" href="#l457">457 </a> <span class="c2html-comment">// non-capturing move</span>
1.514 +<a class="c2html-lineno" name="l458" href="#l458">458 </a> memset(&(candidates[candidatecount]), <span class="c2html-macroconst">0</span>, <span class="c2html-keyword">sizeof</span>(Move));
1.515 +<a class="c2html-lineno" name="l459" href="#l459">459 </a> candidates[candidatecount].piece = gamestate->board[r][f];
1.516 +<a class="c2html-lineno" name="l460" href="#l460">460 </a> candidates[candidatecount].fromrow = r;
1.517 +<a class="c2html-lineno" name="l461" href="#l461">461 </a> candidates[candidatecount].fromfile = f;
1.518 +<a class="c2html-lineno" name="l462" href="#l462">462 </a> candidates[candidatecount].torow = row;
1.519 +<a class="c2html-lineno" name="l463" href="#l463">463 </a> candidates[candidatecount].tofile = file;
1.520 +<a class="c2html-lineno" name="l464" href="#l464">464 </a> candidatecount++;
1.521 +<a class="c2html-lineno" name="l465" href="#l465">465 </a>
1.522 +<a class="c2html-lineno" name="l466" href="#l466">466 </a> <span class="c2html-comment">// capturing move</span>
1.523 +<a class="c2html-lineno" name="l467" href="#l467">467 </a> memcpy(&(candidates[candidatecount]),
1.524 +<a class="c2html-lineno" name="l468" href="#l468">468 </a> &(candidates[candidatecount-<span class="c2html-macroconst">1</span>]), <span class="c2html-keyword">sizeof</span>(Move));
1.525 +<a class="c2html-lineno" name="l469" href="#l469">469 </a> candidates[candidatecount].capture = <span class="c2html-macroconst">1</span>;
1.526 +<a class="c2html-lineno" name="l470" href="#l470">470 </a> candidatecount++;
1.527 +<a class="c2html-lineno" name="l471" href="#l471">471 </a> }
1.528 +<a class="c2html-lineno" name="l472" href="#l472">472 </a> }
1.529 +<a class="c2html-lineno" name="l473" href="#l473">473 </a> }
1.530 +<a class="c2html-lineno" name="l474" href="#l474">474 </a>
1.531 +<a class="c2html-lineno" name="l475" href="#l475">475 </a> <span class="c2html-keyword">if</span> (threatcount) {
1.532 +<a class="c2html-lineno" name="l476" href="#l476">476 </a> *threatcount = <span class="c2html-macroconst">0</span>;
1.533 +<a class="c2html-lineno" name="l477" href="#l477">477 </a> }
1.534 +<a class="c2html-lineno" name="l478" href="#l478">478 </a>
1.535 +<a class="c2html-lineno" name="l479" href="#l479">479 </a>
1.536 +<a class="c2html-lineno" name="l480" href="#l480">480 </a> _Bool result = <span class="c2html-macroconst">0</span>;
1.537 +<a class="c2html-lineno" name="l481" href="#l481">481 </a>
1.538 +<a class="c2html-lineno" name="l482" href="#l482">482 </a> <span class="c2html-keyword">for</span> (<span class="c2html-keyword">int</span> i = <span class="c2html-macroconst">0</span> ; i < candidatecount ; i++) {
1.539 +<a class="c2html-lineno" name="l483" href="#l483">483 </a> <span class="c2html-keyword">if</span> (validate_move_rules(gamestate, &(candidates[i]))
1.540 +<a class="c2html-lineno" name="l484" href="#l484">484 </a> == <span class="c2html-macroconst">VALID_MOVE_SEMANTICS</span>) {
1.541 +<a class="c2html-lineno" name="l485" href="#l485">485 </a> result = <span class="c2html-macroconst">1</span>;
1.542 +<a class="c2html-lineno" name="l486" href="#l486">486 </a> <span class="c2html-keyword">if</span> (threats && threatcount) {
1.543 +<a class="c2html-lineno" name="l487" href="#l487">487 </a> threats[(*threatcount)++] = candidates[i];
1.544 +<a class="c2html-lineno" name="l488" href="#l488">488 </a> }
1.545 +<a class="c2html-lineno" name="l489" href="#l489">489 </a> }
1.546 +<a class="c2html-lineno" name="l490" href="#l490">490 </a> }
1.547 +<a class="c2html-lineno" name="l491" href="#l491">491 </a>
1.548 +<a class="c2html-lineno" name="l492" href="#l492">492 </a> <span class="c2html-keyword">return</span> result;
1.549 +<a class="c2html-lineno" name="l493" href="#l493">493 </a>}
1.550 +<a class="c2html-lineno" name="l494" href="#l494">494 </a>
1.551 +<a class="c2html-lineno" name="l495" href="#l495">495 </a>_Bool is_pinned(GameState *gamestate, Move *move) {
1.552 +<a class="c2html-lineno" name="l496" href="#l496">496 </a> <span class="c2html-type">uint8_t</span> color = move->piece & <span class="c2html-macroconst">COLOR_MASK</span>;
1.553 +<a class="c2html-lineno" name="l497" href="#l497">497 </a>
1.554 +<a class="c2html-lineno" name="l498" href="#l498">498 </a> <span class="c2html-type">uint8_t</span> kingfile = <span class="c2html-macroconst">0</span>, kingrow = <span class="c2html-macroconst">0</span>;
1.555 +<a class="c2html-lineno" name="l499" href="#l499">499 </a> <span class="c2html-keyword">for</span> (<span class="c2html-type">uint8_t</span> row = <span class="c2html-macroconst">0</span> ; row < <span class="c2html-macroconst">8</span> ; row++) {
1.556 +<a class="c2html-lineno" name="l500" href="#l500">500 </a> <span class="c2html-keyword">for</span> (<span class="c2html-type">uint8_t</span> file = <span class="c2html-macroconst">0</span> ; file < <span class="c2html-macroconst">8</span> ; file++) {
1.557 +<a class="c2html-lineno" name="l501" href="#l501">501 </a> <span class="c2html-keyword">if</span> (gamestate->board[row][file] == (color|<span class="c2html-macroconst">KING</span>)) {
1.558 +<a class="c2html-lineno" name="l502" href="#l502">502 </a> kingfile = file;
1.559 +<a class="c2html-lineno" name="l503" href="#l503">503 </a> kingrow = row;
1.560 +<a class="c2html-lineno" name="l504" href="#l504">504 </a> }
1.561 +<a class="c2html-lineno" name="l505" href="#l505">505 </a> }
1.562 +<a class="c2html-lineno" name="l506" href="#l506">506 </a> }
1.563 +<a class="c2html-lineno" name="l507" href="#l507">507 </a>
1.564 +<a class="c2html-lineno" name="l508" href="#l508">508 </a> GameState simulation = gamestate_copy_sim(gamestate);
1.565 +<a class="c2html-lineno" name="l509" href="#l509">509 </a> Move simmove = *move;
1.566 +<a class="c2html-lineno" name="l510" href="#l510">510 </a> apply_move(&simulation, &simmove);
1.567 +<a class="c2html-lineno" name="l511" href="#l511">511 </a> _Bool covered = is_covered(&simulation,
1.568 +<a class="c2html-lineno" name="l512" href="#l512">512 </a> kingrow, kingfile, opponent_color(color));
1.569 +<a class="c2html-lineno" name="l513" href="#l513">513 </a> gamestate_cleanup(&simulation);
1.570 +<a class="c2html-lineno" name="l514" href="#l514">514 </a>
1.571 +<a class="c2html-lineno" name="l515" href="#l515">515 </a> <span class="c2html-keyword">return</span> covered;
1.572 +<a class="c2html-lineno" name="l516" href="#l516">516 </a>}
1.573 +<a class="c2html-lineno" name="l517" href="#l517">517 </a>
1.574 +<a class="c2html-lineno" name="l518" href="#l518">518 </a>_Bool get_real_threats(GameState *gamestate, <span class="c2html-type">uint8_t</span> row, <span class="c2html-type">uint8_t</span> file,
1.575 +<a class="c2html-lineno" name="l519" href="#l519">519 </a> <span class="c2html-type">uint8_t</span> color, Move *threats, <span class="c2html-type">uint8_t</span> *threatcount) {
1.576 +<a class="c2html-lineno" name="l520" href="#l520">520 </a>
1.577 +<a class="c2html-lineno" name="l521" href="#l521">521 </a> <span class="c2html-keyword">if</span> (threatcount) {
1.578 +<a class="c2html-lineno" name="l522" href="#l522">522 </a> *threatcount = <span class="c2html-macroconst">0</span>;
1.579 +<a class="c2html-lineno" name="l523" href="#l523">523 </a> }
1.580 +<a class="c2html-lineno" name="l524" href="#l524">524 </a>
1.581 +<a class="c2html-lineno" name="l525" href="#l525">525 </a> Move candidates[<span class="c2html-macroconst">16</span>];
1.582 +<a class="c2html-lineno" name="l526" href="#l526">526 </a> <span class="c2html-type">uint8_t</span> candidatecount;
1.583 +<a class="c2html-lineno" name="l527" href="#l527">527 </a> <span class="c2html-keyword">if</span> (get_threats(gamestate, row, file, color, candidates, &candidatecount)) {
1.584 +<a class="c2html-lineno" name="l528" href="#l528">528 </a>
1.585 +<a class="c2html-lineno" name="l529" href="#l529">529 </a> _Bool result = <span class="c2html-macroconst">0</span>;
1.586 +<a class="c2html-lineno" name="l530" href="#l530">530 </a> <span class="c2html-type">uint8_t</span> kingfile = <span class="c2html-macroconst">0</span>, kingrow = <span class="c2html-macroconst">0</span>;
1.587 +<a class="c2html-lineno" name="l531" href="#l531">531 </a> <span class="c2html-keyword">for</span> (<span class="c2html-type">uint8_t</span> row = <span class="c2html-macroconst">0</span> ; row < <span class="c2html-macroconst">8</span> ; row++) {
1.588 +<a class="c2html-lineno" name="l532" href="#l532">532 </a> <span class="c2html-keyword">for</span> (<span class="c2html-type">uint8_t</span> file = <span class="c2html-macroconst">0</span> ; file < <span class="c2html-macroconst">8</span> ; file++) {
1.589 +<a class="c2html-lineno" name="l533" href="#l533">533 </a> <span class="c2html-keyword">if</span> (gamestate->board[row][file] == (color|<span class="c2html-macroconst">KING</span>)) {
1.590 +<a class="c2html-lineno" name="l534" href="#l534">534 </a> kingfile = file;
1.591 +<a class="c2html-lineno" name="l535" href="#l535">535 </a> kingrow = row;
1.592 +<a class="c2html-lineno" name="l536" href="#l536">536 </a> }
1.593 +<a class="c2html-lineno" name="l537" href="#l537">537 </a> }
1.594 +<a class="c2html-lineno" name="l538" href="#l538">538 </a> }
1.595 +<a class="c2html-lineno" name="l539" href="#l539">539 </a>
1.596 +<a class="c2html-lineno" name="l540" href="#l540">540 </a> <span class="c2html-keyword">for</span> (<span class="c2html-type">uint8_t</span> i = <span class="c2html-macroconst">0</span> ; i < candidatecount ; i++) {
1.597 +<a class="c2html-lineno" name="l541" href="#l541">541 </a> GameState simulation = gamestate_copy_sim(gamestate);
1.598 +<a class="c2html-lineno" name="l542" href="#l542">542 </a> Move simmove = candidates[i];
1.599 +<a class="c2html-lineno" name="l543" href="#l543">543 </a> apply_move(&simulation, &simmove);
1.600 +<a class="c2html-lineno" name="l544" href="#l544">544 </a> <span class="c2html-keyword">if</span> (!is_covered(&simulation, kingrow, kingfile,
1.601 +<a class="c2html-lineno" name="l545" href="#l545">545 </a> opponent_color(color))) {
1.602 +<a class="c2html-lineno" name="l546" href="#l546">546 </a> result = <span class="c2html-macroconst">1</span>;
1.603 +<a class="c2html-lineno" name="l547" href="#l547">547 </a> <span class="c2html-keyword">if</span> (threats && threatcount) {
1.604 +<a class="c2html-lineno" name="l548" href="#l548">548 </a> threats[(*threatcount)++] = candidates[i];
1.605 +<a class="c2html-lineno" name="l549" href="#l549">549 </a> }
1.606 +<a class="c2html-lineno" name="l550" href="#l550">550 </a> }
1.607 +<a class="c2html-lineno" name="l551" href="#l551">551 </a> }
1.608 +<a class="c2html-lineno" name="l552" href="#l552">552 </a>
1.609 +<a class="c2html-lineno" name="l553" href="#l553">553 </a> <span class="c2html-keyword">return</span> result;
1.610 +<a class="c2html-lineno" name="l554" href="#l554">554 </a> } <span class="c2html-keyword">else</span> {
1.611 +<a class="c2html-lineno" name="l555" href="#l555">555 </a> <span class="c2html-keyword">return</span> <span class="c2html-macroconst">0</span>;
1.612 +<a class="c2html-lineno" name="l556" href="#l556">556 </a> }
1.613 +<a class="c2html-lineno" name="l557" href="#l557">557 </a>}
1.614 +<a class="c2html-lineno" name="l558" href="#l558">558 </a>
1.615 +<a class="c2html-lineno" name="l559" href="#l559">559 </a><span class="c2html-keyword">static</span> <span class="c2html-keyword">int</span> getlocation(GameState *gamestate, Move *move) {
1.616 +<a class="c2html-lineno" name="l560" href="#l560">560 </a>
1.617 +<a class="c2html-lineno" name="l561" href="#l561">561 </a> <span class="c2html-type">uint8_t</span> color = move->piece & <span class="c2html-macroconst">COLOR_MASK</span>;
1.618 +<a class="c2html-lineno" name="l562" href="#l562">562 </a> _Bool incheck = gamestate->lastmove?gamestate->lastmove->move.check:<span class="c2html-macroconst">0</span>;
1.619 +<a class="c2html-lineno" name="l563" href="#l563">563 </a>
1.620 +<a class="c2html-lineno" name="l564" href="#l564">564 </a> Move threats[<span class="c2html-macroconst">16</span>], *threat = <span class="c2html-macroconst">NULL</span>;
1.621 +<a class="c2html-lineno" name="l565" href="#l565">565 </a> <span class="c2html-type">uint8_t</span> threatcount;
1.622 +<a class="c2html-lineno" name="l566" href="#l566">566 </a>
1.623 +<a class="c2html-lineno" name="l567" href="#l567">567 </a> <span class="c2html-keyword">if</span> (get_threats(gamestate, move->torow, move->tofile, color,
1.624 +<a class="c2html-lineno" name="l568" href="#l568">568 </a> threats, &threatcount)) {
1.625 +<a class="c2html-lineno" name="l569" href="#l569">569 </a>
1.626 +<a class="c2html-lineno" name="l570" href="#l570">570 </a> <span class="c2html-keyword">int</span> reason = <span class="c2html-macroconst">INVALID_POSITION</span>;
1.627 +<a class="c2html-lineno" name="l571" href="#l571">571 </a>
1.628 +<a class="c2html-lineno" name="l572" href="#l572">572 </a> <span class="c2html-comment">// find threats for the specified position</span>
1.629 +<a class="c2html-lineno" name="l573" href="#l573">573 </a> <span class="c2html-keyword">for</span> (<span class="c2html-type">uint8_t</span> i = <span class="c2html-macroconst">0</span> ; i < threatcount ; i++) {
1.630 +<a class="c2html-lineno" name="l574" href="#l574">574 </a> <span class="c2html-keyword">if</span> ((threats[i].piece & (<span class="c2html-macroconst">PIECE_MASK</span> | <span class="c2html-macroconst">COLOR_MASK</span>))
1.631 +<a class="c2html-lineno" name="l575" href="#l575">575 </a> == move->piece &&
1.632 +<a class="c2html-lineno" name="l576" href="#l576">576 </a> (move->fromrow == <span class="c2html-macroconst">POS_UNSPECIFIED</span> ||
1.633 +<a class="c2html-lineno" name="l577" href="#l577">577 </a> move->fromrow == threats[i].fromrow) &&
1.634 +<a class="c2html-lineno" name="l578" href="#l578">578 </a> (move->fromfile == <span class="c2html-macroconst">POS_UNSPECIFIED</span> ||
1.635 +<a class="c2html-lineno" name="l579" href="#l579">579 </a> move->fromfile == threats[i].fromfile)) {
1.636 +<a class="c2html-lineno" name="l580" href="#l580">580 </a>
1.637 +<a class="c2html-lineno" name="l581" href="#l581">581 </a> <span class="c2html-keyword">if</span> (threat) {
1.638 +<a class="c2html-lineno" name="l582" href="#l582">582 </a> <span class="c2html-keyword">return</span> <span class="c2html-macroconst">AMBIGUOUS_MOVE</span>;
1.639 +<a class="c2html-lineno" name="l583" href="#l583">583 </a> } <span class="c2html-keyword">else</span> {
1.640 +<a class="c2html-lineno" name="l584" href="#l584">584 </a> <span class="c2html-comment">// found threat is no real threat</span>
1.641 +<a class="c2html-lineno" name="l585" href="#l585">585 </a> <span class="c2html-keyword">if</span> (is_pinned(gamestate, &(threats[i]))) {
1.642 +<a class="c2html-lineno" name="l586" href="#l586">586 </a> reason = incheck?<span class="c2html-macroconst">KING_IN_CHECK</span>:<span class="c2html-macroconst">PIECE_PINNED</span>;
1.643 +<a class="c2html-lineno" name="l587" href="#l587">587 </a> } <span class="c2html-keyword">else</span> {
1.644 +<a class="c2html-lineno" name="l588" href="#l588">588 </a> threat = &(threats[i]);
1.645 +<a class="c2html-lineno" name="l589" href="#l589">589 </a> }
1.646 +<a class="c2html-lineno" name="l590" href="#l590">590 </a> }
1.647 +<a class="c2html-lineno" name="l591" href="#l591">591 </a> }
1.648 +<a class="c2html-lineno" name="l592" href="#l592">592 </a> }
1.649 +<a class="c2html-lineno" name="l593" href="#l593">593 </a>
1.650 +<a class="c2html-lineno" name="l594" href="#l594">594 </a> <span class="c2html-comment">// can't threaten specified position</span>
1.651 +<a class="c2html-lineno" name="l595" href="#l595">595 </a> <span class="c2html-keyword">if</span> (!threat) {
1.652 +<a class="c2html-lineno" name="l596" href="#l596">596 </a> <span class="c2html-keyword">return</span> reason;
1.653 +<a class="c2html-lineno" name="l597" href="#l597">597 </a> }
1.654 +<a class="c2html-lineno" name="l598" href="#l598">598 </a>
1.655 +<a class="c2html-lineno" name="l599" href="#l599">599 </a> memcpy(move, threat, <span class="c2html-keyword">sizeof</span>(Move));
1.656 +<a class="c2html-lineno" name="l600" href="#l600">600 </a> <span class="c2html-keyword">return</span> <span class="c2html-macroconst">VALID_MOVE_SYNTAX</span>;
1.657 +<a class="c2html-lineno" name="l601" href="#l601">601 </a> } <span class="c2html-keyword">else</span> {
1.658 +<a class="c2html-lineno" name="l602" href="#l602">602 </a> <span class="c2html-keyword">return</span> <span class="c2html-macroconst">INVALID_POSITION</span>;
1.659 +<a class="c2html-lineno" name="l603" href="#l603">603 </a> }
1.660 +<a class="c2html-lineno" name="l604" href="#l604">604 </a>}
1.661 +<a class="c2html-lineno" name="l605" href="#l605">605 </a>
1.662 +<a class="c2html-lineno" name="l606" href="#l606">606 </a><span class="c2html-keyword">int</span> eval_move(GameState *gamestate, <span class="c2html-keyword">char</span> *mstr, Move *move, <span class="c2html-type">uint8_t</span> color) {
1.663 +<a class="c2html-lineno" name="l607" href="#l607">607 </a> memset(move, <span class="c2html-macroconst">0</span>, <span class="c2html-keyword">sizeof</span>(Move));
1.664 +<a class="c2html-lineno" name="l608" href="#l608">608 </a> move->fromfile = <span class="c2html-macroconst">POS_UNSPECIFIED</span>;
1.665 +<a class="c2html-lineno" name="l609" href="#l609">609 </a> move->fromrow = <span class="c2html-macroconst">POS_UNSPECIFIED</span>;
1.666 +<a class="c2html-lineno" name="l610" href="#l610">610 </a>
1.667 +<a class="c2html-lineno" name="l611" href="#l611">611 </a> <span class="c2html-type">size_t</span> len = strlen(mstr);
1.668 +<a class="c2html-lineno" name="l612" href="#l612">612 </a> <span class="c2html-keyword">if</span> (len < <span class="c2html-macroconst">1</span> || len > <span class="c2html-macroconst">6</span>) {
1.669 +<a class="c2html-lineno" name="l613" href="#l613">613 </a> <span class="c2html-keyword">return</span> <span class="c2html-macroconst">INVALID_MOVE_SYNTAX</span>;
1.670 +<a class="c2html-lineno" name="l614" href="#l614">614 </a> }
1.671 +<a class="c2html-lineno" name="l615" href="#l615">615 </a>
1.672 +<a class="c2html-lineno" name="l616" href="#l616">616 </a> <span class="c2html-comment">/* evaluate check/checkmate flags */</span>
1.673 +<a class="c2html-lineno" name="l617" href="#l617">617 </a> <span class="c2html-keyword">if</span> (mstr[len-<span class="c2html-macroconst">1</span>] == <span class="c2html-string">'+'</span>) {
1.674 +<a class="c2html-lineno" name="l618" href="#l618">618 </a> len--; mstr[len] = <span class="c2html-string">'\0'</span>;
1.675 +<a class="c2html-lineno" name="l619" href="#l619">619 </a> move->check = <span class="c2html-macroconst">1</span>;
1.676 +<a class="c2html-lineno" name="l620" href="#l620">620 </a> } <span class="c2html-keyword">else</span> <span class="c2html-keyword">if</span> (mstr[len-<span class="c2html-macroconst">1</span>] == <span class="c2html-string">'#'</span>) {
1.677 +<a class="c2html-lineno" name="l621" href="#l621">621 </a> len--; mstr[len] = <span class="c2html-string">'\0'</span>;
1.678 +<a class="c2html-lineno" name="l622" href="#l622">622 </a> <span class="c2html-comment">/* ignore - validation should set game state */</span>
1.679 +<a class="c2html-lineno" name="l623" href="#l623">623 </a> }
1.680 +<a class="c2html-lineno" name="l624" href="#l624">624 </a>
1.681 +<a class="c2html-lineno" name="l625" href="#l625">625 </a> <span class="c2html-comment">/* evaluate promotion */</span>
1.682 +<a class="c2html-lineno" name="l626" href="#l626">626 </a> <span class="c2html-keyword">if</span> (len > <span class="c2html-macroconst">3</span> && mstr[len-<span class="c2html-macroconst">2</span>] == <span class="c2html-string">'='</span>) {
1.683 +<a class="c2html-lineno" name="l627" href="#l627">627 </a> move->promotion = getpiece(mstr[len-<span class="c2html-macroconst">1</span>]);
1.684 +<a class="c2html-lineno" name="l628" href="#l628">628 </a> <span class="c2html-keyword">if</span> (!move->promotion) {
1.685 +<a class="c2html-lineno" name="l629" href="#l629">629 </a> <span class="c2html-keyword">return</span> <span class="c2html-macroconst">INVALID_MOVE_SYNTAX</span>;
1.686 +<a class="c2html-lineno" name="l630" href="#l630">630 </a> } <span class="c2html-keyword">else</span> {
1.687 +<a class="c2html-lineno" name="l631" href="#l631">631 </a> move->promotion |= color;
1.688 +<a class="c2html-lineno" name="l632" href="#l632">632 </a> len -= <span class="c2html-macroconst">2</span>;
1.689 +<a class="c2html-lineno" name="l633" href="#l633">633 </a> mstr[len] = <span class="c2html-macroconst">0</span>;
1.690 +<a class="c2html-lineno" name="l634" href="#l634">634 </a> }
1.691 +<a class="c2html-lineno" name="l635" href="#l635">635 </a> }
1.692 +<a class="c2html-lineno" name="l636" href="#l636">636 </a>
1.693 +<a class="c2html-lineno" name="l637" href="#l637">637 </a> <span class="c2html-keyword">if</span> (len == <span class="c2html-macroconst">2</span>) {
1.694 +<a class="c2html-lineno" name="l638" href="#l638">638 </a> <span class="c2html-comment">/* pawn move (e.g. "e4") */</span>
1.695 +<a class="c2html-lineno" name="l639" href="#l639">639 </a> move->piece = <span class="c2html-macroconst">PAWN</span>;
1.696 +<a class="c2html-lineno" name="l640" href="#l640">640 </a> move->tofile = fileidx(mstr[<span class="c2html-macroconst">0</span>]);
1.697 +<a class="c2html-lineno" name="l641" href="#l641">641 </a> move->torow = rowidx(mstr[<span class="c2html-macroconst">1</span>]);
1.698 +<a class="c2html-lineno" name="l642" href="#l642">642 </a> } <span class="c2html-keyword">else</span> <span class="c2html-keyword">if</span> (len == <span class="c2html-macroconst">3</span>) {
1.699 +<a class="c2html-lineno" name="l643" href="#l643">643 </a> <span class="c2html-keyword">if</span> (strcmp(mstr, <span class="c2html-string">"O-O"</span>) == <span class="c2html-macroconst">0</span>) {
1.700 +<a class="c2html-lineno" name="l644" href="#l644">644 </a> <span class="c2html-comment">/* king side castling */</span>
1.701 +<a class="c2html-lineno" name="l645" href="#l645">645 </a> move->piece = <span class="c2html-macroconst">KING</span>;
1.702 +<a class="c2html-lineno" name="l646" href="#l646">646 </a> move->fromfile = fileidx(<span class="c2html-string">'e'</span>);
1.703 +<a class="c2html-lineno" name="l647" href="#l647">647 </a> move->tofile = fileidx(<span class="c2html-string">'g'</span>);
1.704 +<a class="c2html-lineno" name="l648" href="#l648">648 </a> move->fromrow = move->torow = color == <span class="c2html-macroconst">WHITE</span> ? <span class="c2html-macroconst">0</span> : <span class="c2html-macroconst">7</span>;
1.705 +<a class="c2html-lineno" name="l649" href="#l649">649 </a> } <span class="c2html-keyword">else</span> {
1.706 +<a class="c2html-lineno" name="l650" href="#l650">650 </a> <span class="c2html-comment">/* move (e.g. "Nf3") */</span>
1.707 +<a class="c2html-lineno" name="l651" href="#l651">651 </a> move->piece = getpiece(mstr[<span class="c2html-macroconst">0</span>]);
1.708 +<a class="c2html-lineno" name="l652" href="#l652">652 </a> move->tofile = fileidx(mstr[<span class="c2html-macroconst">1</span>]);
1.709 +<a class="c2html-lineno" name="l653" href="#l653">653 </a> move->torow = rowidx(mstr[<span class="c2html-macroconst">2</span>]);
1.710 +<a class="c2html-lineno" name="l654" href="#l654">654 </a> }
1.711 +<a class="c2html-lineno" name="l655" href="#l655">655 </a> } <span class="c2html-keyword">else</span> <span class="c2html-keyword">if</span> (len == <span class="c2html-macroconst">4</span>) {
1.712 +<a class="c2html-lineno" name="l656" href="#l656">656 </a> move->piece = getpiece(mstr[<span class="c2html-macroconst">0</span>]);
1.713 +<a class="c2html-lineno" name="l657" href="#l657">657 </a> <span class="c2html-keyword">if</span> (!move->piece) {
1.714 +<a class="c2html-lineno" name="l658" href="#l658">658 </a> move->piece = <span class="c2html-macroconst">PAWN</span>;
1.715 +<a class="c2html-lineno" name="l659" href="#l659">659 </a> move->fromfile = fileidx(mstr[<span class="c2html-macroconst">0</span>]);
1.716 +<a class="c2html-lineno" name="l660" href="#l660">660 </a> }
1.717 +<a class="c2html-lineno" name="l661" href="#l661">661 </a> <span class="c2html-keyword">if</span> (mstr[<span class="c2html-macroconst">1</span>] == <span class="c2html-string">'x'</span>) {
1.718 +<a class="c2html-lineno" name="l662" href="#l662">662 </a> <span class="c2html-comment">/* capture (e.g. "Nxf3", "dxe5") */</span>
1.719 +<a class="c2html-lineno" name="l663" href="#l663">663 </a> move->capture = <span class="c2html-macroconst">1</span>;
1.720 +<a class="c2html-lineno" name="l664" href="#l664">664 </a> } <span class="c2html-keyword">else</span> {
1.721 +<a class="c2html-lineno" name="l665" href="#l665">665 </a> <span class="c2html-comment">/* move (e.g. "Ndf3", "N2c3", "e2e4") */</span>
1.722 +<a class="c2html-lineno" name="l666" href="#l666">666 </a> <span class="c2html-keyword">if</span> (isfile(mstr[<span class="c2html-macroconst">1</span>])) {
1.723 +<a class="c2html-lineno" name="l667" href="#l667">667 </a> move->fromfile = fileidx(mstr[<span class="c2html-macroconst">1</span>]);
1.724 +<a class="c2html-lineno" name="l668" href="#l668">668 </a> <span class="c2html-keyword">if</span> (move->piece == <span class="c2html-macroconst">PAWN</span>) {
1.725 +<a class="c2html-lineno" name="l669" href="#l669">669 </a> move->piece = <span class="c2html-macroconst">0</span>;
1.726 +<a class="c2html-lineno" name="l670" href="#l670">670 </a> }
1.727 +<a class="c2html-lineno" name="l671" href="#l671">671 </a> } <span class="c2html-keyword">else</span> {
1.728 +<a class="c2html-lineno" name="l672" href="#l672">672 </a> move->fromrow = rowidx(mstr[<span class="c2html-macroconst">1</span>]);
1.729 +<a class="c2html-lineno" name="l673" href="#l673">673 </a> }
1.730 +<a class="c2html-lineno" name="l674" href="#l674">674 </a> }
1.731 +<a class="c2html-lineno" name="l675" href="#l675">675 </a> move->tofile = fileidx(mstr[<span class="c2html-macroconst">2</span>]);
1.732 +<a class="c2html-lineno" name="l676" href="#l676">676 </a> move->torow = rowidx(mstr[<span class="c2html-macroconst">3</span>]);
1.733 +<a class="c2html-lineno" name="l677" href="#l677">677 </a> } <span class="c2html-keyword">else</span> <span class="c2html-keyword">if</span> (len == <span class="c2html-macroconst">5</span>) {
1.734 +<a class="c2html-lineno" name="l678" href="#l678">678 </a> <span class="c2html-keyword">if</span> (strcmp(mstr, <span class="c2html-string">"O-O-O"</span>) == <span class="c2html-macroconst">0</span>) {
1.735 +<a class="c2html-lineno" name="l679" href="#l679">679 </a> <span class="c2html-comment">/* queen side castling "O-O-O" */</span>
1.736 +<a class="c2html-lineno" name="l680" href="#l680">680 </a> move->piece = <span class="c2html-macroconst">KING</span>;
1.737 +<a class="c2html-lineno" name="l681" href="#l681">681 </a> move->fromfile = fileidx(<span class="c2html-string">'e'</span>);
1.738 +<a class="c2html-lineno" name="l682" href="#l682">682 </a> move->tofile = fileidx(<span class="c2html-string">'c'</span>);
1.739 +<a class="c2html-lineno" name="l683" href="#l683">683 </a> move->fromrow = move->torow = color == <span class="c2html-macroconst">WHITE</span> ? <span class="c2html-macroconst">0</span> : <span class="c2html-macroconst">7</span>;
1.740 +<a class="c2html-lineno" name="l684" href="#l684">684 </a> } <span class="c2html-keyword">else</span> {
1.741 +<a class="c2html-lineno" name="l685" href="#l685">685 </a> move->piece = getpiece(mstr[<span class="c2html-macroconst">0</span>]);
1.742 +<a class="c2html-lineno" name="l686" href="#l686">686 </a> <span class="c2html-keyword">if</span> (mstr[<span class="c2html-macroconst">2</span>] == <span class="c2html-string">'x'</span>) {
1.743 +<a class="c2html-lineno" name="l687" href="#l687">687 </a> move->capture = <span class="c2html-macroconst">1</span>;
1.744 +<a class="c2html-lineno" name="l688" href="#l688">688 </a> <span class="c2html-keyword">if</span> (move->piece) {
1.745 +<a class="c2html-lineno" name="l689" href="#l689">689 </a> <span class="c2html-comment">/* capture (e.g. "Ndxf3") */</span>
1.746 +<a class="c2html-lineno" name="l690" href="#l690">690 </a> move->fromfile = fileidx(mstr[<span class="c2html-macroconst">1</span>]);
1.747 +<a class="c2html-lineno" name="l691" href="#l691">691 </a> } <span class="c2html-keyword">else</span> {
1.748 +<a class="c2html-lineno" name="l692" href="#l692">692 </a> <span class="c2html-comment">/* long notation capture (e.g. "e5xf6") */</span>
1.749 +<a class="c2html-lineno" name="l693" href="#l693">693 </a> move->piece = <span class="c2html-macroconst">PAWN</span>;
1.750 +<a class="c2html-lineno" name="l694" href="#l694">694 </a> move->fromfile = fileidx(mstr[<span class="c2html-macroconst">0</span>]);
1.751 +<a class="c2html-lineno" name="l695" href="#l695">695 </a> move->fromrow = rowidx(mstr[<span class="c2html-macroconst">1</span>]);
1.752 +<a class="c2html-lineno" name="l696" href="#l696">696 </a> }
1.753 +<a class="c2html-lineno" name="l697" href="#l697">697 </a> } <span class="c2html-keyword">else</span> {
1.754 +<a class="c2html-lineno" name="l698" href="#l698">698 </a> <span class="c2html-comment">/* long notation move (e.g. "Nc5a4") */</span>
1.755 +<a class="c2html-lineno" name="l699" href="#l699">699 </a> move->fromfile = fileidx(mstr[<span class="c2html-macroconst">1</span>]);
1.756 +<a class="c2html-lineno" name="l700" href="#l700">700 </a> move->fromrow = rowidx(mstr[<span class="c2html-macroconst">2</span>]);
1.757 +<a class="c2html-lineno" name="l701" href="#l701">701 </a> }
1.758 +<a class="c2html-lineno" name="l702" href="#l702">702 </a> move->tofile = fileidx(mstr[<span class="c2html-macroconst">3</span>]);
1.759 +<a class="c2html-lineno" name="l703" href="#l703">703 </a> move->torow = rowidx(mstr[<span class="c2html-macroconst">4</span>]);
1.760 +<a class="c2html-lineno" name="l704" href="#l704">704 </a> }
1.761 +<a class="c2html-lineno" name="l705" href="#l705">705 </a> } <span class="c2html-keyword">else</span> <span class="c2html-keyword">if</span> (len == <span class="c2html-macroconst">6</span>) {
1.762 +<a class="c2html-lineno" name="l706" href="#l706">706 </a> <span class="c2html-comment">/* long notation capture (e.g. "Nc5xf3") */</span>
1.763 +<a class="c2html-lineno" name="l707" href="#l707">707 </a> <span class="c2html-keyword">if</span> (mstr[<span class="c2html-macroconst">3</span>] == <span class="c2html-string">'x'</span>) {
1.764 +<a class="c2html-lineno" name="l708" href="#l708">708 </a> move->capture = <span class="c2html-macroconst">1</span>;
1.765 +<a class="c2html-lineno" name="l709" href="#l709">709 </a> move->piece = getpiece(mstr[<span class="c2html-macroconst">0</span>]);
1.766 +<a class="c2html-lineno" name="l710" href="#l710">710 </a> move->fromfile = fileidx(mstr[<span class="c2html-macroconst">1</span>]);
1.767 +<a class="c2html-lineno" name="l711" href="#l711">711 </a> move->fromrow = rowidx(mstr[<span class="c2html-macroconst">2</span>]);
1.768 +<a class="c2html-lineno" name="l712" href="#l712">712 </a> move->tofile = fileidx(mstr[<span class="c2html-macroconst">4</span>]);
1.769 +<a class="c2html-lineno" name="l713" href="#l713">713 </a> move->torow = rowidx(mstr[<span class="c2html-macroconst">5</span>]);
1.770 +<a class="c2html-lineno" name="l714" href="#l714">714 </a> }
1.771 +<a class="c2html-lineno" name="l715" href="#l715">715 </a> }
1.772 +<a class="c2html-lineno" name="l716" href="#l716">716 </a>
1.773 +<a class="c2html-lineno" name="l717" href="#l717">717 </a>
1.774 +<a class="c2html-lineno" name="l718" href="#l718">718 </a> <span class="c2html-keyword">if</span> (move->piece) {
1.775 +<a class="c2html-lineno" name="l719" href="#l719">719 </a> <span class="c2html-keyword">if</span> (move->piece == <span class="c2html-macroconst">PAWN</span>
1.776 +<a class="c2html-lineno" name="l720" href="#l720">720 </a> && move->torow == (color==<span class="c2html-macroconst">WHITE</span>?<span class="c2html-macroconst">7</span>:<span class="c2html-macroconst">0</span>)
1.777 +<a class="c2html-lineno" name="l721" href="#l721">721 </a> && !move->promotion) {
1.778 +<a class="c2html-lineno" name="l722" href="#l722">722 </a> <span class="c2html-keyword">return</span> <span class="c2html-macroconst">NEED_PROMOTION</span>;
1.779 +<a class="c2html-lineno" name="l723" href="#l723">723 </a> }
1.780 +<a class="c2html-lineno" name="l724" href="#l724">724 </a>
1.781 +<a class="c2html-lineno" name="l725" href="#l725">725 </a> move->piece |= color;
1.782 +<a class="c2html-lineno" name="l726" href="#l726">726 </a> <span class="c2html-keyword">if</span> (move->fromfile == <span class="c2html-macroconst">POS_UNSPECIFIED</span>
1.783 +<a class="c2html-lineno" name="l727" href="#l727">727 </a> || move->fromrow == <span class="c2html-macroconst">POS_UNSPECIFIED</span>) {
1.784 +<a class="c2html-lineno" name="l728" href="#l728">728 </a> <span class="c2html-keyword">return</span> getlocation(gamestate, move);
1.785 +<a class="c2html-lineno" name="l729" href="#l729">729 </a> } <span class="c2html-keyword">else</span> {
1.786 +<a class="c2html-lineno" name="l730" href="#l730">730 </a> <span class="c2html-keyword">return</span> chkidx(move) ? <span class="c2html-macroconst">VALID_MOVE_SYNTAX</span> : <span class="c2html-macroconst">INVALID_POSITION</span>;
1.787 +<a class="c2html-lineno" name="l731" href="#l731">731 </a> }
1.788 +<a class="c2html-lineno" name="l732" href="#l732">732 </a> } <span class="c2html-keyword">else</span> {
1.789 +<a class="c2html-lineno" name="l733" href="#l733">733 </a> <span class="c2html-keyword">return</span> <span class="c2html-macroconst">INVALID_MOVE_SYNTAX</span>;
1.790 +<a class="c2html-lineno" name="l734" href="#l734">734 </a> }
1.791 +<a class="c2html-lineno" name="l735" href="#l735">735 </a>}
1.792 +<a class="c2html-lineno" name="l736" href="#l736">736 </a>
1.793 +<a class="c2html-lineno" name="l737" href="#l737">737 </a>_Bool is_protected(GameState *gamestate, <span class="c2html-type">uint8_t</span> row, <span class="c2html-type">uint8_t</span> file,
1.794 +<a class="c2html-lineno" name="l738" href="#l738">738 </a> <span class="c2html-type">uint8_t</span> color) {
1.795 +<a class="c2html-lineno" name="l739" href="#l739">739 </a>
1.796 +<a class="c2html-lineno" name="l740" href="#l740">740 </a> Move threats[<span class="c2html-macroconst">16</span>];
1.797 +<a class="c2html-lineno" name="l741" href="#l741">741 </a> <span class="c2html-type">uint8_t</span> threatcount;
1.798 +<a class="c2html-lineno" name="l742" href="#l742">742 </a> <span class="c2html-keyword">if</span> (get_real_threats(gamestate, row, file, color, threats, &threatcount)) {
1.799 +<a class="c2html-lineno" name="l743" href="#l743">743 </a> <span class="c2html-keyword">for</span> (<span class="c2html-keyword">int</span> i = <span class="c2html-macroconst">0</span> ; i < threatcount ; i++) {
1.800 +<a class="c2html-lineno" name="l744" href="#l744">744 </a> <span class="c2html-keyword">if</span> (threats[i].piece != (color|<span class="c2html-macroconst">KING</span>)) {
1.801 +<a class="c2html-lineno" name="l745" href="#l745">745 </a> <span class="c2html-keyword">return</span> <span class="c2html-macroconst">1</span>;
1.802 +<a class="c2html-lineno" name="l746" href="#l746">746 </a> }
1.803 +<a class="c2html-lineno" name="l747" href="#l747">747 </a> }
1.804 +<a class="c2html-lineno" name="l748" href="#l748">748 </a> <span class="c2html-keyword">return</span> <span class="c2html-macroconst">0</span>;
1.805 +<a class="c2html-lineno" name="l749" href="#l749">749 </a> } <span class="c2html-keyword">else</span> {
1.806 +<a class="c2html-lineno" name="l750" href="#l750">750 </a> <span class="c2html-keyword">return</span> <span class="c2html-macroconst">0</span>;
1.807 +<a class="c2html-lineno" name="l751" href="#l751">751 </a> }
1.808 +<a class="c2html-lineno" name="l752" href="#l752">752 </a>}
1.809 +<a class="c2html-lineno" name="l753" href="#l753">753 </a>
1.810 +<a class="c2html-lineno" name="l754" href="#l754">754 </a><span class="c2html-type">uint16_t</span> remaining_movetime(GameInfo *gameinfo, GameState *gamestate,
1.811 +<a class="c2html-lineno" name="l755" href="#l755">755 </a> <span class="c2html-type">uint8_t</span> color) {
1.812 +<a class="c2html-lineno" name="l756" href="#l756">756 </a> <span class="c2html-keyword">if</span> (!gameinfo->timecontrol) {
1.813 +<a class="c2html-lineno" name="l757" href="#l757">757 </a> <span class="c2html-keyword">return</span> <span class="c2html-macroconst">0</span>;
1.814 +<a class="c2html-lineno" name="l758" href="#l758">758 </a> }
1.815 +<a class="c2html-lineno" name="l759" href="#l759">759 </a>
1.816 +<a class="c2html-lineno" name="l760" href="#l760">760 </a> <span class="c2html-keyword">if</span> (gamestate->movelist) {
1.817 +<a class="c2html-lineno" name="l761" href="#l761">761 </a> <span class="c2html-type">uint16_t</span> time = gameinfo->time;
1.818 +<a class="c2html-lineno" name="l762" href="#l762">762 </a> <span class="c2html-type">suseconds_t</span> micros = <span class="c2html-macroconst">0</span>;
1.819 +<a class="c2html-lineno" name="l763" href="#l763">763 </a>
1.820 +<a class="c2html-lineno" name="l764" href="#l764">764 </a> MoveList *movelist = color == <span class="c2html-macroconst">WHITE</span> ?
1.821 +<a class="c2html-lineno" name="l765" href="#l765">765 </a> gamestate->movelist : gamestate->movelist->next;
1.822 +<a class="c2html-lineno" name="l766" href="#l766">766 </a>
1.823 +<a class="c2html-lineno" name="l767" href="#l767">767 </a> <span class="c2html-keyword">while</span> (movelist) {
1.824 +<a class="c2html-lineno" name="l768" href="#l768">768 </a> time += gameinfo->addtime;
1.825 +<a class="c2html-lineno" name="l769" href="#l769">769 </a>
1.826 +<a class="c2html-lineno" name="l770" href="#l770">770 </a> <span class="c2html-keyword">struct</span> movetimeval *movetime = &(movelist->move.movetime);
1.827 +<a class="c2html-lineno" name="l771" href="#l771">771 </a> <span class="c2html-keyword">if</span> (movetime->tv_sec >= time) {
1.828 +<a class="c2html-lineno" name="l772" href="#l772">772 </a> <span class="c2html-keyword">return</span> <span class="c2html-macroconst">0</span>;
1.829 +<a class="c2html-lineno" name="l773" href="#l773">773 </a> }
1.830 +<a class="c2html-lineno" name="l774" href="#l774">774 </a>
1.831 +<a class="c2html-lineno" name="l775" href="#l775">775 </a> time -= movetime->tv_sec;
1.832 +<a class="c2html-lineno" name="l776" href="#l776">776 </a> micros += movetime->tv_usec;
1.833 +<a class="c2html-lineno" name="l777" href="#l777">777 </a>
1.834 +<a class="c2html-lineno" name="l778" href="#l778">778 </a> movelist = movelist->next ? movelist->next->next : <span class="c2html-macroconst">NULL</span>;
1.835 +<a class="c2html-lineno" name="l779" href="#l779">779 </a> }
1.836 +<a class="c2html-lineno" name="l780" href="#l780">780 </a>
1.837 +<a class="c2html-lineno" name="l781" href="#l781">781 </a> <span class="c2html-type">time_t</span> sec;
1.838 +<a class="c2html-lineno" name="l782" href="#l782">782 </a> movelist = gamestate->lastmove;
1.839 +<a class="c2html-lineno" name="l783" href="#l783">783 </a> <span class="c2html-keyword">if</span> ((movelist->move.piece & <span class="c2html-macroconst">COLOR_MASK</span>) != color) {
1.840 +<a class="c2html-lineno" name="l784" href="#l784">784 </a> <span class="c2html-keyword">struct</span> movetimeval *lastmovetstamp = &(movelist->move.timestamp);
1.841 +<a class="c2html-lineno" name="l785" href="#l785">785 </a> <span class="c2html-keyword">struct</span> timeval currenttstamp;
1.842 +<a class="c2html-lineno" name="l786" href="#l786">786 </a> gettimeofday(¤ttstamp, <span class="c2html-macroconst">NULL</span>);
1.843 +<a class="c2html-lineno" name="l787" href="#l787">787 </a> micros += currenttstamp.tv_usec - lastmovetstamp->tv_usec;
1.844 +<a class="c2html-lineno" name="l788" href="#l788">788 </a> sec = currenttstamp.tv_sec - lastmovetstamp->tv_sec;
1.845 +<a class="c2html-lineno" name="l789" href="#l789">789 </a> <span class="c2html-keyword">if</span> (sec >= time) {
1.846 +<a class="c2html-lineno" name="l790" href="#l790">790 </a> <span class="c2html-keyword">return</span> <span class="c2html-macroconst">0</span>;
1.847 +<a class="c2html-lineno" name="l791" href="#l791">791 </a> }
1.848 +<a class="c2html-lineno" name="l792" href="#l792">792 </a>
1.849 +<a class="c2html-lineno" name="l793" href="#l793">793 </a> time -= sec;
1.850 +<a class="c2html-lineno" name="l794" href="#l794">794 </a> }
1.851 +<a class="c2html-lineno" name="l795" href="#l795">795 </a>
1.852 +<a class="c2html-lineno" name="l796" href="#l796">796 </a> sec = micros / 1e6L;
1.853 +<a class="c2html-lineno" name="l797" href="#l797">797 </a>
1.854 +<a class="c2html-lineno" name="l798" href="#l798">798 </a> <span class="c2html-keyword">if</span> (sec >= time) {
1.855 +<a class="c2html-lineno" name="l799" href="#l799">799 </a> <span class="c2html-keyword">return</span> <span class="c2html-macroconst">0</span>;
1.856 +<a class="c2html-lineno" name="l800" href="#l800">800 </a> }
1.857 +<a class="c2html-lineno" name="l801" href="#l801">801 </a>
1.858 +<a class="c2html-lineno" name="l802" href="#l802">802 </a> time -= sec;
1.859 +<a class="c2html-lineno" name="l803" href="#l803">803 </a>
1.860 +<a class="c2html-lineno" name="l804" href="#l804">804 </a> <span class="c2html-keyword">return</span> time;
1.861 +<a class="c2html-lineno" name="l805" href="#l805">805 </a> } <span class="c2html-keyword">else</span> {
1.862 +<a class="c2html-lineno" name="l806" href="#l806">806 </a> <span class="c2html-keyword">return</span> gameinfo->time;
1.863 +<a class="c2html-lineno" name="l807" href="#l807">807 </a> }
1.864 +<a class="c2html-lineno" name="l808" href="#l808">808 </a>}
1.865 +</div>
1.866 + </body>
1.867 +</html>
1.868 +
