xiangqi-0.1.3.min.js

/* @license
 * Copyright (c) 2019, lengyanyu258 (lengyanyu258@outlook.com)
 * Released under the BSD license
 * https://github.com/lengyanyu258/xiangqi.js/blob/master/LICENSE
 */
"use strict";var Xiangqi=function(e){var l="b",p="r",t=-1,g="p",m="c",y="r",q="n",A="b",w="a",N="k",i="pcrnbakPCRNBAK",r="rnbakabnr/9/1c5c1/p1p1p1p1p/9/9/P1P1P1P1P/1C5C1/9/RNBAKABNR r - - 0 1",v=Object.freeze(["1-0","0-1","1/2-1/2","*"]),R=Object.freeze({b:[16,-1,1],r:[-16,-1,1]}),k=Object.freeze({c:[-16,16,-1,1],r:[-16,16,-1,1],n:[-33,-31,31,33,-18,14,-14,18],b:[-34,34,30,-30],a:[-17,17,15,-15],k:[-16,16,-1,1]}),o=Object.freeze({NORMAL:"n",CAPTURE:"c"}),_=Object.freeze({NORMAL:1,CAPTURE:2}),O=Object.freeze({a9:0,b9:1,c9:2,d9:3,e9:4,f9:5,g9:6,h9:7,i9:8,a8:16,b8:17,c8:18,d8:19,e8:20,f8:21,g8:22,h8:23,i8:24,a7:32,b7:33,c7:34,d7:35,e7:36,f7:37,g7:38,h7:39,i7:40,a6:48,b6:49,c6:50,d6:51,e6:52,f6:53,g6:54,h6:55,i6:56,a5:64,b5:65,c5:66,d5:67,e5:68,f5:69,g5:70,h5:71,i5:72,a4:80,b4:81,c4:82,d4:83,e4:84,f4:85,g4:86,h4:87,i4:88,a3:96,b3:97,c3:98,d3:99,e3:100,f3:101,g3:102,h3:103,i3:104,a2:112,b2:113,c2:114,d2:115,e2:116,f2:117,g2:118,h2:119,i2:120,a1:128,b1:129,c1:130,d1:131,e1:132,f1:133,g1:134,h1:135,i1:136,a0:144,b0:145,c0:146,d0:147,e0:148,f0:149,g0:150,h0:151,i0:152}),C=new Array(256),f={r:t,b:t},P=p,a=0,c=1,h=[],d={};function b(e){void 0===e&&(e=!1),C=new Array(256),f={r:t,b:t},P=p,a=0,c=1,h=[],e||(d={}),L(U())}function j(){E(r)}function E(e,r){if(void 0===r&&(r=!1),!x(e).valid)return!1;var n=e.split(/\s+/),t=n[0],i=0;b(r);for(var o=0;o<t.length;++o){var u=t.charAt(o);if("/"===u)i+=7;else if(-1!=="0123456789".indexOf(u))i+=parseInt(u,10);else{var s=u<"a"?p:l;$({type:u.toLowerCase(),color:s},Q(i)),i++}}return P=n[1],a=parseInt(n[4],10),c=parseInt(n[5],10),L(U()),!0}function x(e){var r={0:"No errors.",1:"FEN string must contain six space-delimited fields.",2:"6th field (move number) must be a positive integer.",3:"5th field (half move counter) must be a non-negative integer.",4:"4th field (en-passant square) should be '-'.",5:"3rd field (castling availability) should be '-'.",6:"2nd field (side to move) is invalid.",7:"1st field (piece positions) does not contain 10 '/'-delimited rows.",8:"1st field (piece positions) is invalid [consecutive numbers].",9:"1st field (piece positions) is invalid [invalid piece].",10:"1st field (piece positions) is invalid [row too large].",11:"1st field (piece positions) is invalid [each side has one king].",12:"1st field (piece positions) is invalid [each side has no more than 2 advisers].",13:"1st field (piece positions) is invalid [each side has no more than 2 bishops].",14:"1st field (piece positions) is invalid [each side has no more than 2 knights].",15:"1st field (piece positions) is invalid [each side has no more than 2 rooks].",16:"1st field (piece positions) is invalid [each side has no more than 2 cannons].",17:"1st field (piece positions) is invalid [each side has no more than 5 pawns].",18:"1st field (piece positions) is invalid [king should at palace].",19:"1st field (piece positions) is invalid [red adviser should at right position].",20:"1st field (piece positions) is invalid [black adviser should at right position].",21:"1st field (piece positions) is invalid [red bishop should at right position].",22:"1st field (piece positions) is invalid [black bishop should at right position].",23:"1st field (piece positions) is invalid [red pawn should at right position].",24:"1st field (piece positions) is invalid [black pawn should at right position]."};function n(e){return{valid:0===e,error_number:e,error:r[e]}}var t=e.split(/\s+/);if(6!==t.length)return n(1);if(isNaN(t[5])||parseInt(t[5],10)<=0)return n(2);if(isNaN(t[4])||parseInt(t[4],10)<0)return n(3);if(!/^-$/.test(t[3]))return n(4);if(!/^-$/.test(t[2]))return n(5);if(!/^([rb])$/.test(t[1]))return n(6);var i=t[0].split("/");if(10!==i.length)return n(7);var o,u={p:{number:0,squares:[]},P:{number:0,squares:[]},c:{number:0,squares:[]},C:{number:0,squares:[]},r:{number:0,squares:[]},R:{number:0,squares:[]},n:{number:0,squares:[]},N:{number:0,squares:[]},b:{number:0,squares:[]},B:{number:0,squares:[]},a:{number:0,squares:[]},A:{number:0,squares:[]},k:{number:0,squares:[]},K:{number:0,squares:[]}};for(o=0;o<i.length;o++){for(var s=0,a=!1,f=0;f<i[o].length;f++)if(isNaN(i[o][f])){try{++u[i[o][f]].number}catch(e){return n(9)}u[i[o][f]].squares.push(9-o<<4|s),s+=1,a=!1}else{if(a)return n(8);s+=parseInt(i[o][f],10),a=!0}if(9!==s)return n(10)}if(1!==u.k.number||1!==u.K.number)return n(11);if(2<u.a.number||2<u.A.number)return n(12);if(2<u.b.number||2<u.B.number)return n(13);if(2<u.n.number||2<u.N.number)return n(14);if(2<u.r.number||2<u.R.number)return n(15);if(2<u.c.number||2<u.C.number)return n(16);if(5<u.p.number||5<u.P.number)return n(17);if(Y(N,u.k.squares[0],p)||Y(N,u.K.squares[0],l))return n(18);for(o in u.a.squares)if(Y(w,u.a.squares[o],p))return n(19);for(o in u.A.squares)if(Y(w,u.A.squares[o],l))return n(20);for(o in u.b.squares)if(Y(A,u.b.squares[o],p))return n(21);for(o in u.B.squares)if(Y(A,u.B.squares[o],l))return n(22);for(o in u.p.squares)if(Y(g,u.p.squares[o],p))return n(23);for(o in u.P.squares)if(Y(g,u.P.squares[o],l))return n(24);return n(0)}function U(){for(var 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