// ==UserScript==
// @name Puzz.link Assistance
// @version 24.2.18.1
// @description Do trivial deduction.
// @author Leaving Leaves
// @match https://puzz.link/p*/*
// @match https://pzplus.tck.mn/p*/*
// @match http://pzv.jp/p*/*
// @icon https://www.google.com/s2/favicons?sz=64&domain=puzz.link
// @grant none
// @namespace https://greasyfork.org/users/1192854
// @license GPL
// ==/UserScript==
'use strict';
const MAXLOOP = 50;
const MAXDFSCELLNUM = 200;
let flg = true, flg2 = true;
let step = false;
let board;
let GENRENAME;
// used for showing pattern
// ×·█━┃┓┛┗┏╺╹╸╻●○
// const list
const CQNUM = {
quesmark: -2,
circle: -2, // no number
black: -2,
none: -1,
wcir: 1,
bcir: 2,
// Moon or Sun
sun: 1,
moon: 2,
};
const CANUM = {
none: -1,
// Yinyang
wcir: 1,
bcir: 2,
};
const CQANS = {
none: 0,
black: 1,
// Light and Shadow
white: 2,
// Starbattle
star: 1,
// Akari
light: 1,
// Shakashaka triangle
triBL: 2,
triBR: 3,
triTR: 4,
triTL: 5,
// Slant
rslash: 31,
lslash: 32,
};
const CQUES = {
none: 0,
// Castle Wall
gray: 0,
white: 1,
black: 2,
// Icebarn
ice: 6,
// Simpleloop
bwall: 7,
// Slalom
vgate: 21,
hgate: 22,
// Nurimaze
cir: 41,
tri: 42,
};
const CQSUB = {
none: 0,
dot: 1,
green: 1,
// Slitherlink
yellow: 2,
// All or Nothing
gray: 1,
// Moon or Sun
cross: 2,
};
const QDIR = {
none: 0,
// arrow
up: 1,
dn: 2,
lt: 3,
rt: 4,
};
const BQSUB = {
none: 0,
link: 1,
cross: 2,
// Icebarn
arrow_up: 11,
arrow_dn: 12,
arrow_lt: 13,
arrow_rt: 14,
};
const BQNUM = {
none: -1,
wcir: 1,
bcir: 2,
};
const CRQSUB = {
none: undefined,
out: 0,
in: 1,
}
const GENRELIST = [
["Akari", AkariAssist],
["All or Nothing", AllorNothingAssist],
["Aqre", AqreAssist],
["Aquapelago", AquapelagoAssist],
["Ayeheya", AyeheyaAssist],
["Canal View", CanalViewAssist],
["Castle Wall", CastleWallAssist],
["Cave", CaveAssist],
["Choco Banana", ChocoBananaAssist],
["Circles and Squares", CirclesAndSquaresAssist],
["Creek", CreekAssist],
["Guide Arrow", GuideArrowAssist],
["Heyawake", HeyawakeAssist],
["Hitori", HitoriAssist],
["Icebarn", IcebarnAssist],
["Inverse LITSO", InverseLitsoAssist],
["Koburin", KoburinAssist],
["Kropki", KropkiAssist],
["Kurodoko", KurodokoAssist],
["Light and Shadow", LightandShadowAssist],
["LITS", LitsAssist],
["Masyu", MasyuAssist],
["Mid-loop", MidloopAssist],
["Moon or Sun", MoonOrSunAssist],
["Nonogram", NonogramAssist],
["Norinori", NorinoriAssist],
["Norinuri", NorinuriAssist],
["No Three", NothreeAssist],
["Nuribou", NuribouAssist],
["Nurikabe", NurikabeAssist],
["Nuri-Maze", NuriMazeAssist],
["Nurimisaki", NurimisakiAssist],
["Pencils", PencilsAssist],
["Pipelink", PipelinkAssist],
["Ring-ring", RingringAssist],
["Shakashaka", ShakashakaAssist],
["Shikaku", ShikakuAssist],
["Simple Loop", SimpleloopAssist],
["Slalom", SlalomAssist],
["Slant", SlantAssist],
["Slitherlink", SlitherlinkAssist],
["Square Jam", SquareJamAssist],
["Star Battle", StarbattleAssist],
["Sudoku", SudokuAssist],
["Tapa", TapaAssist],
["Tasquare", TasquareAssist],
["Tatamibari", TatamibariAssist],
["Tentaisho", TentaishoAssist],
["Yajilin", YajilinAssist],
["Yin-Yang", YinyangAssist],
];
// main entrance
let initDone = false;
let main = function () {
GENRENAME = ui.puzzle.info.en;
if (initDone || GENRENAME === undefined) { return; }
initDone = true;
if (document.querySelector("#assist") !== null) { return; }
console.log(`Puzzle Genre Name: ${GENRENAME}`);
console.log(`Puzzle Link: ${window.location.href}`);
console.log("Assistance running...");
let btnName = "Assist";
let btn2Name = "Assist Step";
if (!GENRELIST.some(g => g[0] === GENRENAME)) {
console.log("Automatically generated assistant.");
btnName += "(AG)";
btn2Name += "(AG)";
}
let btn = `<button type="button" class="btn" id="assist" style="display: inline;">${btnName}</button>`;
let btn2 = `<button type="button" class="btn" id="assiststep" style="display: inline;">${btn2Name}</button>`;
document.querySelector('#btntrial').insertAdjacentHTML('afterend', btn);
document.querySelector("#assist").insertAdjacentHTML('afterend', btn2);
document.querySelector("#assist").addEventListener("click", assist, false);
document.querySelector("#assiststep").addEventListener("click", assiststep, false);
window.addEventListener("keypress", (event) => {
if (event.key === 'q' || (event.key === 'Q')) { assist(); }
if (event.key === 'w' || (event.key === 'W')) { assiststep(); }
});
window.parent.postMessage("Ready to Assist", "*");
};
ui.puzzle.on('ready', main, false);
let initTimer = setInterval(() => {
if (initDone) {
clearInterval(initTimer);
return;
}
console.log("Puzz.link Assistance didn't launch. Relaunching...");
main();
}, 1000);
// for postMessage
window.addEventListener(
"message",
(event) => {
if (event.data === "assist") {
assist();
}
},
false,
);
function assiststep() {
step = true;
assist();
step = false;
}
function assist() {
console.time("Assisted. Elapsed Time");
flg = true;
board = ui.puzzle.board;
for (let loop = 0; loop < (step ? 1 : MAXLOOP); loop++) {
if (!flg && !flg2) { break; }
flg = flg2 = false;
if (GENRELIST.some(g => g[0] === GENRENAME)) {
GENRELIST.find(g => g[0] === GENRENAME)[1]();
} else { GeneralAssist(); }
}
ui.puzzle.redraw();
console.timeEnd("Assisted. Elapsed Time");
window.parent.postMessage(ui.puzzle.check().complete ? "Solved" : "Not Solved", "*");
if (ui.puzzle.check().complete) { printBoard(); }
}
function printBoard() {
// only some genres are able (i.e. looks good) to show in text.
let res = "";
if (GENRENAME === "Slitherlink") {
for (let i = 0; i < board.cross.length; i++) {
let cross = board.cross[i];
let t;
t |= cross.adjborder.top.line << 0;
t |= cross.adjborder.left.line << 1;
t |= cross.adjborder.bottom.line << 2;
t |= cross.adjborder.right.line << 3;
res += "·╹╸┛╻┃┓┫╺┗━┻┏┣┳╋"[t];
if (cross.bx === board.maxbx) { res += '\n'; }
}
} else
forEachCell(cell => {
res += (() => {
if (GENRENAME === "Akari") {
if (isBlack(cell)) { return "●"; }
if (cell.qnum !== CQNUM.none) { return "█"; }
return ".";
}
if (isBlack(cell) || [CQUES.bwall, CQUES.white, CQUES.black].includes(cell.ques)) { return "█"; }
if (GENRENAME === "Shakashaka" && cell.qans !== CQANS.none) { return "..◣◢◥◤"[cell.qans]; }
if (GENRENAME === "Sudoku" || GENRENAME === "Kropki") { return cell.anum; }
if (GENRENAME === "Masyu" || GENRENAME === "Yinyang") {
if (cell.qnum === CQNUM.bcir || cell.anum === CANUM.bcir) { return "●"; }
if (cell.qnum === CQNUM.wcir || cell.anum === CANUM.wcir) { return "○"; }
}
if (cell.lcnt > 0) {
let t;
t |= cell.adjborder.top.line << 0;
t |= cell.adjborder.left.line << 1;
t |= cell.adjborder.bottom.line << 2;
t |= cell.adjborder.right.line << 3;
return ".╹╸┛╻┃┓┫╺┗━┻┏┣┳╋"[t];
}
if (cell.qnum !== CQNUM.none) { return "#"; }
return ".";
})();
if (cell.bx === board.cols * 2 - 1) { res += '\n'; }
});
console.log("Solution:\n" + res);
}
let isBlack = c => !c.isnull && c.qans === CQANS.black;
let isGreen = c => !c.isnull && c.qsub === CQSUB.green;
let isIce = c => !c.isnull && c.ques === CQUES.ice;
// set val
let offset = function (c, dx, dy, dir = 0) {
dir = (dir % 4 + 4) % 4;
if (dir === 0) { return board.getobj(c.bx + dx * 2, c.by + dy * 2); }
if (dir === 1) { return board.getobj(c.bx + dy * 2, c.by - dx * 2); }
if (dir === 2) { return board.getobj(c.bx - dx * 2, c.by - dy * 2); }
if (dir === 3) { return board.getobj(c.bx - dy * 2, c.by + dx * 2); }
}
let adjlist = function (a, b = undefined) {
if (b === undefined) {
return [a.top, a.left, a.bottom, a.right];
}
return [[a.top, b.top], [a.left, b.left], [a.bottom, b.bottom], [a.right, b.right]];
}
let fourside = function (f, a, b = undefined) {
if (b === undefined) {
f(a.top);
f(a.left);
f(a.bottom);
f(a.right);
} else {
f(a.top, b.top);
f(a.left, b.left);
f(a.bottom, b.bottom);
f(a.right, b.right);
}
};
let dir = function (c, d) {
d = (d % 4 + 4) % 4;
return [c.top, c.left, c.bottom, c.right][d];
}
let qdirRemap = function (qdir) {
return [-1, 0, 2, 1, 3][qdir];
}
function forEachCell(f = c => { }) { for (let i = 0; i < board.cell.length; i++) { f(board.cell[i]); } }
function forEachCross(f = c => { }) { for (let i = 0; i < board.cross.length; i++) { f(board.cross[i]); } }
let add_link = function (b) {
if (b === undefined || b.isnull || b.line || b.qans || b.qsub !== BQSUB.none) { return; }
if (step && flg) { return; }
b.setQsub(BQSUB.link);
b.draw();
flg |= b.qsub === BQSUB.link;
};
let add_cross = function (b) {
if (b === undefined || b.isnull || b.line || b.qsub !== BQSUB.none) { return; }
if (step && flg) { return; }
b.setQsub(BQSUB.cross);
b.draw();
flg |= b.qsub === BQSUB.cross;
};
let add_line = function (b) {
if (b === undefined || b.isnull || b.line || b.qsub === BQSUB.cross) { return; }
if (step && flg) { return; }
b.setLine(1);
b.draw();
flg |= b.line;
};
let add_side = function (b) {
if (b === undefined || b.isnull || b.qans || b.qsub === BQSUB.link) { return; }
if (step && flg) { return; }
b.setQans(1);
b.draw();
flg |= b.qans;
};
let add_black = function (c, notOnNum = false) {
if (notOnNum && (c.qnum !== CQNUM.none || c.qnums.length > 0)) { return; }
if (c === undefined || c.isnull || c.lcnt !== 0 || c.qsub === CQSUB.dot || c.qans !== CQANS.none) { return; }
if (step && flg) { return; }
flg = true;
c.setQans(CQANS.black);
c.draw();
};
let add_dot = function (c) {
if (c === undefined || c.isnull || c.qnum !== CQNUM.none || c.qnums.length > 0 || c.qans !== CQANS.none || c.qsub !== CQSUB.none) { return; }
if (step && flg) { return; }
flg |= c.lcnt === 0;
c.setQsub(CQSUB.dot);
c.draw();
};
let add_green = function (c) {
if (c === undefined || c.isnull || c.qans !== CQANS.none || c.qsub !== CQSUB.none) { return; }
if (step && flg) { return; }
flg = true;
c.setQsub(CQSUB.green);
c.draw();
};
let add_inout = function (cr, qsub) {
if (cr.isnull || cr.qsub !== CRQSUB.none) { return; }
flg2 = 1;
cr.setQsub(qsub);
}
// single rule deduction
function No2x2Cell({ isShaded, add_unshaded } = {}) {
forEachCell(cell => {
let templist = [cell, offset(cell, 1, 0), offset(cell, 0, 1), offset(cell, 1, 1)];
if (templist.some(c => c.isnull)) { return; }
templist = templist.filter(c => !isShaded(c));
if (templist.length === 1) {
add_unshaded(templist[0]);
}
});
}
function No2x2Black() {
No2x2Cell({
isShaded: isBlack,
add_unshaded: add_green,
});
}
function No2x2Green() {
No2x2Cell({
isShaded: isGreen,
add_unshaded: add_black,
});
}
function CellConnected({ isShaded, isUnshaded, add_shaded, add_unshaded,
isLinked = (c, nb, nc) => isShaded(c) && isShaded(nc),
isNotPassable = (c, nb, nc) => false,
cantDivideShade = n => n > 0,
OutsideAsShaded = false,
OnlyOneConnected = true,
UnshadeEmpty = true,
Obj = "cell" } = {}) {
let forEachObj = (Obj === "cell" ? forEachCell : forEachCross);
// use tarjan to find cut vertex
let n = 0;
let ord = new Map();
let low = new Map();
let shdn = new Map();
let fth = new Map();
let shadelist = [];
// to avoid Maximum call stack size exceeded, manually use a stack to track the cells
let dfs = function (sc) {
let stack = [{ cell: sc, father: null, visited: false }];
while (stack.length > 0) {
let cur = stack[stack.length - 1];
let c = cur.cell;
let f = cur.father;
let v = cur.visited;
if (!v) {
if (!c.isnull && isUnshaded(c) || ord.has(c)) { stack.pop(); continue; }
if (c.isnull && !OutsideAsShaded) { stack.pop(); continue; }
ord.set(c, n);
low.set(n, n);
shdn.set(n, 0);
fth.set(c, f);
n++;
stack[stack.length - 1] = { cell: c, father: f, visited: true };
} else {
stack.pop();
}
if (!c.isnull) {
const cellset = new Set();
let linkdfs = function (c) {
if (c.isnull || cellset.has(c) || isUnshaded(c)) { return; }
cellset.add(c);
for (let d = 0; d < 4; d++) {
let nb = offset(c, .5, 0, d);
let nc = offset(c, 1, 0, d);
while (isIce(nc)) { nc = offset(nc, 1, 0, d); }
if (nb.isnull || nc.isnull) { continue; }
if (isLinked(c, nb, nc)) {
linkdfs(nc);
}
}
}
linkdfs(c);
if (!v) {
cellset.forEach(cl => {
ord.set(cl, ord.get(c));
shdn.set(ord.get(cl), shdn.get(ord.get(cl)) + isShaded(cl));
fth.set(cl, f);
});
}
let fn = function (c, nb, nc) {
if (isNotPassable(c, nb, nc)) { return; }
if (nc === f || f !== null && ord.get(f) === ord.get(nc) || isUnshaded(nc)) { return; }
if (nc.isnull && !OutsideAsShaded) { return; }
if (ord.get(c) === ord.get(nc)) { return; }
if (ord.has(nc) && ord.get(nc) < ord.get(c)) {
low.set(ord.get(c), Math.min(low.get(ord.get(c)), ord.get(nc)));
return;
}
if (!v) {
stack.push({ cell: nc, father: c, visited: false });
}
if (v && c === fth.get(nc)) {
let ordc = ord.get(c);
let ordnc = ord.get(nc);
low.set(ordc, Math.min(low.get(ordc), low.get(ordnc)));
shdn.set(ordc, shdn.get(ordc) + shdn.get(ordnc));
if (ordc <= low.get(ordnc) && cantDivideShade(shdn.get(ordnc))) {
cellset.forEach(c => {
if (!isShaded(c) && !shadelist.includes(c)) {
shadelist.push(c);
}
});
}
}
};
for (let c of cellset) {
for (let d = 0; d < 4; d++) {
let nb = offset(c, .5, 0, d);
let nc = offset(c, 1, 0, d);
while (isIce(nc)) { nc = offset(nc, 1, 0, d); }
fn(c, nb, nc);
}
};
}
if (!v && c.isnull) {
if (Obj === "cell") {
for (let i = 0; i < board.cols; i++) {
stack.push({ cell: board.getobj(2 * i + 1, board.minby + 1), father: c, visited: false });
stack.push({ cell: board.getobj(2 * i + 1, board.maxby - 1), father: c, visited: false });
}
for (let i = 0; i < board.rows; i++) {
stack.push({ cell: board.getobj(board.minbx + 1, 2 * i + 1), father: c, visited: false });
stack.push({ cell: board.getobj(board.maxbx - 1, 2 * i + 1), father: c, visited: false });
}
}
}
}
}
if (OutsideAsShaded) {
dfs(board.getc(0, 0));
} else {
forEachObj(cell => {
if (!isShaded(cell) || ord.has(cell)) { return; }
if (n > 0 && OnlyOneConnected) { return; }
dfs(cell);
});
}
shadelist.forEach(c => add_shaded(c));
if (ord.size > 0 && UnshadeEmpty) {
forEachObj(cell => {
if (ord.has(cell) || isShaded(cell) || isUnshaded(cell) || isIce(cell)) { return; }
add_unshaded(cell);
});
}
}
function GreenConnected() {
CellConnected({
isShaded: isGreen,
isUnshaded: isBlack,
add_shaded: add_green,
add_unshaded: add_black,
});
}
function BlackConnected() {
CellConnected({
isShaded: isBlack,
isUnshaded: isGreen,
add_shaded: add_black,
add_unshaded: add_green,
});
}
function BlackConnected_InRegion() {
CellConnected({
isShaded: isBlack,
isUnshaded: isGreen,
add_shaded: add_black,
add_unshaded: add_green,
isNotPassable: (c, nb, nc) => nb.ques,
OnlyOneConnected: false,
UnshadeEmpty: false,
});
}
function CellNoLoop({ isShaded, isUnshaded, add_unshaded } = {}) {
let ord = new Map();
let n = 0;
forEachCell(cell => {
if (!isShaded(cell) || ord.has(cell)) { return; }
let dfs = function (c) {
if (c.isnull || !isShaded(c) || ord.has(c)) { return; }
ord.set(c, n);
fourside(dfs, c.adjacent);
}
dfs(cell);
n++;
});
forEachCell(cell => {
if (isShaded(cell) || isUnshaded(cell)) { return; }
let templist = [offset(cell, -1, 0), offset(cell, 0, -1), offset(cell, 0, 1), offset(cell, 1, 0)];
templist = templist.filter(c => !c.isnull && isShaded(c));
templist = templist.map(c => ord.get(c));
for (let i = 0; i < templist.length; i++) {
for (let j = i + 1; j < templist.length; j++) {
if (templist[i] === templist[j]) {
add_unshaded(cell);
}
}
}
});
}
function GreenNoLoopInCell() {
CellNoLoop({
isShaded: isGreen,
isUnshaded: isBlack,
add_unshaded: add_black,
});
}
function BlackNotAdjacent() {
forEachCell(cell => {
if (cell.qans !== CQANS.black) { return; }
fourside(add_green, cell.adjacent);
});
}
function SingleLoopInCell({ isPassable = c => true, isPathable = b => b.qsub !== BQSUB.cross,
isPass = c => c.qsub === CQSUB.dot, isPath = b => b.line,
add_notpass = c => { }, add_pass = c => { }, add_notpath = add_cross, add_path = add_line } = {}) {
let initied = false;
forEachCross(cross => { initied |= cross.qsub !== 0; })
if (!initied) {
forEachCross(cross => cross.setQsub(CRQSUB.none));
}
let hasIce = false;
forEachCell(cell => { hasIce |= isIce(cell); });
if (!hasIce) {
CellConnected({
isShaded: cr => cr.qsub === CRQSUB.in,
isUnshaded: cr => cr.qsub === CRQSUB.out,
add_shaded: cr => add_inout(cr, CRQSUB.in),
add_unshaded: cr => add_inout(cr, CRQSUB.out),
isLinked: (c, nb, nc) => nb.qsub === BQSUB.cross || c.qsub === CRQSUB.in && nc.qsub === CRQSUB.in,
isNotPassable: (c, nb, nc) => nb.line,
Obj: "cross",
});
CellConnected({
isShaded: cr => cr.qsub === CRQSUB.out,
isUnshaded: cr => cr.qsub === CRQSUB.in,
add_shaded: cr => add_inout(cr, CRQSUB.out),
add_unshaded: cr => add_inout(cr, CRQSUB.in),
isLinked: (c, nb, nc) => nb.qsub === BQSUB.cross || c.qsub === CRQSUB.out && nc.qsub === CRQSUB.out,
isNotPassable: (c, nb, nc) => nb.line,
Obj: "cross",
});
}
forEachCell(cell => {
if (!isPassable(cell)) {
add_notpass(cell);
fourside(add_notpath, cell.adjborder);
}
let emptycnt = 0;
let linecnt = 0;
fourside((c, b) => {
if (!isPassable(c) || !isPathable(b)) {
add_notpath(b);
}
if (!c.isnull && isPassable(c) && isPathable(b)) { emptycnt++; }
linecnt += isPath(b);
}, cell.adjacent, cell.adjborder);
if (linecnt > 0) {
add_pass(cell);
}
// no branch and no cross
if (linecnt === 2 && !isIce(cell)) {
fourside(add_notpath, cell.adjborder);
}
// no deadend
if (emptycnt <= 1) {
fourside(add_notpath, cell.adjborder);
add_notpass(cell);
}
// 2 degree path
if (emptycnt === 2 && (linecnt === 1 || isPass(cell))) {
fourside(add_path, cell.adjborder);
}
// avoid forming multiple loop
if (cell.path !== null && !isIce(cell)) {
for (let d = 0; d < 4; d++) {
let ncell = dir(cell.adjacent, d);
while (isIce(ncell)) { ncell = dir(ncell.adjacent, d); }
if (cell.path === ncell.path && board.linegraph.components.length > 1) {
add_notpath(dir(cell.adjborder, d));
}
}
}
if (!isIce(cell) && linecnt === 0) {
let list = [];
fourside((nb, nc) => {
if (nb.isnull || nc.isnull || nb.qsub === BQSUB.cross) { return; }
list.push(nc);
}, cell.adjborder, cell.adjacent);
if (list.length > 0 && list[0].path !== null && list.every(c => c.path === list[0].path && board.linegraph.components.length > 1)) {
fourside(add_notpath, cell.adjborder);
}
}
if (isIce(cell)) {
let fn = (b1, b2) => {
if (b1.line) { add_line(b2); }
if (b1.qsub === BQSUB.cross) { add_cross(b2) };
}
for (let d = 0; d < 4; d++) {
fn(offset(cell, .5, 0, d), offset(cell, -.5, 0, d));
}
}
// ┏╸ ┏╸
// ┃· -> ┃╺━
// ┗╸ ┗╸
if (cell.lcnt === 0 && isPass(cell)) {
let list = [];
fourside((c, b) => {
if (isPathable(b)) { list.push([c, b]); }
}, cell.adjacent, cell.adjborder);
if (list.length === 3) {
let fn = function (a, b, c) {
if (a[0].path !== null && a[0].path === b[0].path && board.linegraph.components.length > 1) {
add_path(c[1]);
}
}
fn(list[0], list[1], list[2]);
fn(list[1], list[2], list[0]);
fn(list[2], list[0], list[1]);
}
}
});
add_inout(board.getobj(0, 0), CRQSUB.out);
// add invisible qsub at cross
if (!hasIce) {
for (let i = 0; i < board.cross.length; i++) {
let cross = board.cross[i];
// no checker
if (cross.qsub === CRQSUB.none) {
let fn = function (cr, cr1, cr2, cr12) {
if (cr1.isnull || cr2.isnull || cr12.isnull) { return; }
if (cr1.qsub === CRQSUB.none || cr2.qsub === CRQSUB.none || cr12.qsub === CRQSUB.none) { return; }
if (cr1.qsub === cr2.qsub && cr1.qsub !== cr12.qsub) {
add_inout(cr, cr1.qsub);
}
};
for (let d = 0; d < 4; d++) {
if (!isIce(offset(cross, .5, .5, d)))
fn(cross, offset(cross, 1, 0, d), offset(cross, 0, 1, d), offset(cross, 1, 1, d));
}
}
}
}
let crossSet = new Set();
let dfs = function (cr) {
if (cr.qsub === CRQSUB.none || crossSet.has(cr)) { return; }
crossSet.add(cr);
for (let d = 0; d < 4; d++) {
let ncr = offset(cr, 1, 0, d);
let b = offset(cr, .5, 0, d);
if (ncr.isnull) { continue; }
if (cr.qsub !== CRQSUB.none) {
// add line between different i/o
(() => {
if (cr.isnull || ncr.isnull) { return; }
if (cr.qsub === CRQSUB.none || ncr.qsub === CRQSUB.none) { return; }
if (cr.qsub === ncr.qsub) {
add_cross(b);
}
if (cr.qsub !== ncr.qsub) {
add_line(b);
}
})();
// extend i/o through cross/line
(() => {
if (ncr.isnull) { return; }
if (b.isnull || b.qsub === BQSUB.cross) {
add_inout(ncr, cr.qsub);
}
if (!b.isnull && b.line && GENRENAME !== "Icebarn") {
add_inout(ncr, cr.qsub ^ 1);
}
if (!b.isnull && b.line && b.qsub !== BQSUB.none && GENRENAME === "Icebarn") {
add_inout(ncr, cr.qsub + ([BQSUB.arrow_up, BQSUB.arrow_lt, BQSUB.arrow_dn, BQSUB.arrow_rt][d] === b.qsub ? 1 : -1));
}
})();
dfs(ncr);
}
}
};
for (let i = 0; i < board.cross.length; i++) {
let cross = board.cross[i];
dfs(cross);
}
}
function NoCheckerCell({ isShaded, isUnshaded, add_shaded, add_unshaded } = {}) {
forEachCell(cell => {
if (isShaded(cell) || isUnshaded(cell)) { return; }
let fn = function (c, c1, c2, c12) {
if (isShaded(c1) && isShaded(c2) && isUnshaded(c12)) {
add_shaded(c);
}
if (isUnshaded(c1) && isUnshaded(c2) && isShaded(c12)) {
add_unshaded(c);
}
};
for (let d = 0; d < 4; d++) {
fn(cell, offset(cell, 1, 0, d), offset(cell, 0, 1, d), offset(cell, 1, 1, d));
}
});
}
function SightNumber({ isShaded, isUnshaded, add_shaded, add_unshaded } = {}) {
forEachCell(cell => {
let qnum = cell.qnum;
if (qnum === CQNUM.none || qnum === CQNUM.quesmark) { return; }
let seencnt = (isShaded(cell) ? 1 : 0);
let farthest = [0, 0, 0, 0];
// count seen shaded cells
for (let d = 0; d < 4; d++) {
let pcell = dir(cell.adjacent, d);
while (!pcell.isnull && isShaded(pcell)) {
farthest[d]++;
seencnt++;
pcell = dir(pcell.adjacent, d);
}
while (!pcell.isnull && !isUnshaded(pcell)) {
farthest[d]++;
pcell = dir(pcell.adjacent, d);
}
}
// not extend too much
for (let d = 0; d < 4; d++) {
let pcell = dir(cell.adjacent, d);
while (!pcell.isnull && isShaded(pcell)) {
pcell = dir(pcell.adjacent, d);
}
if (pcell.isnull || isUnshaded(pcell)) { continue; }
let tcell = pcell;
pcell = dir(pcell.adjacent, d);
let n = 0;
while (!pcell.isnull && isShaded(pcell)) {
n++;
pcell = dir(pcell.adjacent, d);
}
if (n + seencnt + 1 > qnum) {
add_unshaded(tcell);
}
}
// must extend this way
let maxn = farthest.reduce((a, b) => a + b) + (isUnshaded(cell) ? 0 : 1);
for (let d = 0; d < 4; d++) {
for (let j = 1; j <= qnum - maxn + farthest[d]; j++) {
add_shaded(offset(cell, 0, -j, d));
}
}
});
}
function SizeRegion_Cell({ isShaded, isUnshaded, add_shaded, add_unshaded, OneNumPerRegion = true, NoUnshadedNum = true } = {}) {
// maybe rewrite this someday
forEachCell(cell => {
// don't block region exit
let templist = [offset(cell, -1, -1), offset(cell, -1, 0), offset(cell, -1, 1), offset(cell, 0, -1),
offset(cell, 0, 1), offset(cell, 1, -1), offset(cell, 1, 0), offset(cell, 1, 1)];
if (!isShaded(cell) && !isUnshaded(cell) && templist.filter(c => isUnshaded(c) || c.isnull).length >= 2) {
for (let d = 0; d < 4; d++) {
let ncell = dir(cell.adjacent, d);
if (isUnshaded(ncell)) { continue; }
let cellList = [];
let dfs = function (c) {
if (cellList.length > MAXDFSCELLNUM) { return; }
if (c.isnull || isUnshaded(c) || c === cell || cellList.includes(c)) { return; }
cellList.push(c);
fourside(dfs, c.adjacent);
}
dfs(ncell);
if (cellList.length > MAXDFSCELLNUM) { continue; }
let templist = cellList.filter(c => c.qnum !== CQNUM.none && (NoUnshadedNum || isShaded(c)));
// extend region without num
if (templist.length === 0 && cellList.some(c => isShaded(c)) && OneNumPerRegion) {
add_shaded(cell);
}
// extend region with less cells
if (templist.length >= 1 && templist[0].qnum !== CQNUM.quesmark && templist[0].qnum > cellList.length) {
add_shaded(cell);
}
}
}
// finished region
if (cell.qnum > 0 && isShaded(cell)) {
let cellList = [];
let dfs = function (c) {
if (cellList.length > cell.qnum) { return; }
if (c.isnull || !isShaded(c) || cellList.includes(c)) { return; }
cellList.push(c);
fourside(dfs, c.adjacent);
}
dfs(cell);
if (cellList.length === cell.qnum) {
cellList.forEach(c => fourside(add_unshaded, c.adjacent));
}
}
// finished surrounded region
if (cell.qnum > 0 && (NoUnshadedNum || isShaded(cell))) {
let cellList = [];
let dfs = function (c) {
if (cellList.length > cell.qnum) { return; }
if (c.isnull || isUnshaded(c) || cellList.includes(c)) { return; }
cellList.push(c);
fourside(dfs, c.adjacent);
}
dfs(cell);
if (cell.qnum !== CQNUM.quesmark && cell.qnum === cellList.length) {
cellList.forEach(c => add_shaded(c));
}
}
// not connect two region
if (!isShaded(cell) && !isUnshaded(cell)) {
let cellList = [cell];
let dfs = function (c) {
if (c.isnull || !isShaded(c) || cellList.includes(c)) { return; }
cellList.push(c);
dfs(c.adjacent.top);
dfs(c.adjacent.bottom);
dfs(c.adjacent.left);
dfs(c.adjacent.right);
}
fourside(dfs, cell.adjacent);
let qnumlist = cellList.filter(c => c.qnum !== CQNUM.none);
if (qnumlist.length > 1 && OneNumPerRegion) {
add_unshaded(cell);
}
qnumlist = qnumlist.filter(c => c.qnum !== CQNUM.quesmark);
if (qnumlist.length > 0 && qnumlist.some(c => c.qnum !== qnumlist[0].qnum)) {
add_unshaded(cell);
}
if (qnumlist.length > 0 && cellList.length > qnumlist[0].qnum) {
add_unshaded(cell);
}
}
// cell and region
for (let d = 0; d < 4; d++) {
if (isShaded(cell) || isUnshaded(cell) || cell.qnum === CQNUM.none) { continue; }
let ncell = dir(cell.adjacent, d);
if (ncell.isnull || !isShaded(ncell)) { continue; }
let cellList = [];
let dfs = function (c) {
if (c.isnull || !isShaded(c) || cellList.includes(c)) { return; }
cellList.push(c);
fourside(dfs, c.adjacent);
}
dfs(ncell, cellList);
let templist = cellList.filter(c => c.qnum !== CQNUM.none);
if (templist.length >= 1 && (templist[0].qnum !== CQNUM.quesmark && cell.qnum !== CQNUM.quesmark && templist[0].qnum !== cell.qnum || OneNumPerRegion)) {
add_unshaded(cell);
}
if (cell.qnum !== CQNUM.quesmark && cellList.length + 1 > cell.qnum) {
add_unshaded(cell);
}
}
});
}
function StripRegion_cell({ isShaded, add_unshaded } = {}) {
forEachCell(cell => {
let templist = [cell, offset(cell, 1, 0), offset(cell, 0, 1), offset(cell, 1, 1)];
if (templist.some(c => c.isnull)) { return; }
// can't be over 2 shades in each 2*2
if (templist.filter(c => isShaded(c)).length === 2) {
templist.forEach(c => add_unshaded(c));
}
});
}
function RectRegion_Cell({ isShaded, isUnshaded, add_shaded, add_unshaded, isSquare = false } = {}) {
forEachCell(cell => {
if (isShaded(cell) || isUnshaded(cell)) { return; }
// can't be exactly 3 shades in each 2*2
let fn = function (list) {
if (list.some(c => c.isnull)) { return; }
if (list.filter(c => isShaded(c)).length === 2 && list.filter(c => isUnshaded(c)).length === 1) {
add_unshaded(cell);
}
if (list.filter(c => isShaded(c)).length === 3 && list.filter(c => isUnshaded(c)).length === 0) {
add_shaded(cell);
}
};
for (let d = 0; d < 4; d++) {
fn([offset(cell, 1, 0, d), offset(cell, 0, 1, d), offset(cell, 1, 1, d)]);
}
});
if (!isSquare) { return; }
let shadelist = [];
forEachCell(cell => {
if (!isShaded(cell)) { return; }
// █ -> █
// · · ···
for (let d = 0; d < 4; d++) {
if ([offset(cell, -1, 1, d), offset(cell, 1, 1, d)].every(c => c.isnull || isUnshaded(c))) {
add_unshaded(offset(cell, 0, 1, d));
}
}
if ((c => !c.isnull && isShaded(c))(offset(cell, 0, -1))) { return; }
if ((c => !c.isnull && isShaded(c))(offset(cell, -1, 0))) { return; }
let height = 1, width = 1;
while ((c => !c.isnull && isShaded(c))(offset(cell, 0, height - 1))) { height++; }
while ((c => !c.isnull && isShaded(c))(offset(cell, width - 1, 0))) { width++; }
height--;
width--;
// finished square
if (width === height) {
// 123
// 0 4
// 765
let list = [offset(cell, -1, 0), offset(cell, -1, -1),
offset(cell, 0, -1), offset(cell, width, -1),
offset(cell, width, 0), offset(cell, width, height),
offset(cell, 0, height), offset(cell, -1, height)];
let list2 = [[0, 4], [2, 6], [0, 2, 5], [1, 3, 6], [2, 4, 7], [3, 5, 0], [4, 6, 1], [5, 7, 2], [6, 0, 3], [7, 1, 4], [1, 3, 5, 7]];
if (list2.some(arr => arr.every(n => list[n].isnull || isUnshaded(list[n])))) {
[0, 2, 4, 6].forEach(n => add_unshaded(list[n]));
}
}
// extend square
if (height > width) {
for (let j = 0; j < height; j++) {
let c = offset(cell, 0, j);
let l = 0, r = 0;
while ((c => !c.isnull && !isUnshaded(c))(offset(c, l, 0)) && l > width - height - 1) { l--; }
while ((c => !c.isnull && !isUnshaded(c))(offset(c, r, 0)) && r < height) { r++; }
for (let k = r - height; k <= l + height; k++) {
shadelist.push(offset(c, k, 0));
}
}
}
if (height < width) {
for (let j = 0; j < width; j++) {
let c = offset(cell, j, 0);
let l = 0, r = 0;
while ((c => !c.isnull && !isUnshaded(c))(offset(c, 0, l)) && l > height - width - 1) { l--; }
while ((c => !c.isnull && !isUnshaded(c))(offset(c, 0, r)) && r < width) { r++; }
for (let k = r - width; k <= l + width; k++) {
shadelist.push(offset(c, 0, k));
}
}
}
});
shadelist.forEach(c => add_shaded(c));
}
function RectRegion_Border({ doTrial = true, isSizeAble = (w, h, sc, c) => true } = {}) {
let isLink = b => !b.isnull && b.qsub === BQSUB.link;
let isSide = b => b.isnull || b.qans;
for (let i = 0; i < board.cross.length; i++) {
let cross = board.cross[i];
for (let d = 0; d < 4; d++) {
// × ×
// ×· -> ×·×
// ×
let b1 = dir(cross.adjborder, d);
let b2 = dir(cross.adjborder, d + 1);
if (isLink(b1) && isLink(b2)) {
add_link(dir(cross.adjborder, d + 2));
add_link(dir(cross.adjborder, d + 3));
}
// ┃ ┃
// ×╹ -> ×┃
// ┃
if (isSide(b1) && isLink(b2)) {
add_side(dir(cross.adjborder, d + 2));
}
// × ×
// ━╸ -> ━━━
//
if (isLink(b1) && isSide(b2)) {
add_side(dir(cross.adjborder, d + 3));
}
// ┃ ┃
// ╹ -> ━┻━
// × ×
b2 = dir(cross.adjborder, d + 2);
if (isSide(b1) && isLink(b2)) {
add_side(dir(cross.adjborder, d + 1));
add_side(dir(cross.adjborder, d + 3));
}
}
}
if (!doTrial) { return; }
// record the sides count in (0,0) to (a,b); s1 for horizontal side, s2 for vertical side
const s1 = Array.from(new Array(board.rows), () => new Array(board.cols).fill(0));
const s2 = Array.from(new Array(board.rows), () => new Array(board.cols).fill(0));
// record the links count in a row; l1 for vertical link, l2 for horizontal link
const l1 = Array.from(new Array(board.rows), () => new Array(board.cols).fill(0));
const l2 = Array.from(new Array(board.rows), () => new Array(board.cols).fill(0));
for (let i = 0; i < board.rows; i++) {
for (let j = 0; j < board.cols; j++) {
s1[i][j] = (b => !b.isnull && b.qans ? 1 : 0)(board.getb(2 * j + 1, 2 * i));
s2[i][j] = (b => !b.isnull && b.qans ? 1 : 0)(board.getb(2 * j, 2 * i + 1));
s1[i][j] += (i > 0 ? s1[i - 1][j] : 0) + (j > 0 ? s1[i][j - 1] : 0) - (i > 0 && j > 0 ? s1[i - 1][j - 1] : 0);
s2[i][j] += (i > 0 ? s2[i - 1][j] : 0) + (j > 0 ? s2[i][j - 1] : 0) - (i > 0 && j > 0 ? s2[i - 1][j - 1] : 0);
l1[i][j] = (b => !b.isnull && b.qsub === BQSUB.link ? 1 : 0)(board.getb(2 * j + 1, 2 * i));
l2[i][j] = (b => !b.isnull && b.qsub === BQSUB.link ? 1 : 0)(board.getb(2 * j, 2 * i + 1));
l1[i][j] += (j > 0 ? l1[i][j - 1] : 0);
l2[i][j] += (i > 0 ? l2[i - 1][j] : 0);
}
}
// check if there can be a rectangle exactly between c1 and c2
let isRectAble = function (c1, c2) {
if (c1.isnull || c2.isnull) { return 0; }
let [x1, x2] = [(c1.bx - 1) / 2, (c2.bx - 1) / 2].sort((x, y) => x - y);
let [y1, y2] = [(c1.by - 1) / 2, (c2.by - 1) / 2].sort((x, y) => x - y);
let f1 = (a, b) => a < 0 || b < 0 ? 0 : s1[a][b];
let f2 = (a, b) => a < 0 || b < 0 ? 0 : s2[a][b];
return f1(y2, x2) - f1(y1, x2) - f1(y2, x1 - 1) + f1(y1, x1 - 1)
+ f2(y2, x2) - f2(y1 - 1, x2) - f2(y2, x1) + f2(y1 - 1, x1) === 0;
}
let isRectAble2 = function (c1, c2, dir = ['L', 'U', 'R', 'D']) {
if (c1.isnull || c2.isnull) { return 0; }
let [x1, x2] = [(c1.bx - 1) / 2, (c2.bx - 1) / 2].sort((x, y) => x - y);
let [y1, y2] = [(c1.by - 1) / 2, (c2.by - 1) / 2].sort((x, y) => x - y);
let g1 = (a, b) => a < 0 || b < 0 || a >= board.rows || b >= board.cols ? 0 : l1[a][b];
let g2 = (a, b) => a < 0 || b < 0 || a >= board.rows || b >= board.cols ? 0 : l2[a][b];
if (dir.includes('L') && g2(y2, x1) - g2(y1 - 1, x1) !== 0) { return false; }
if (dir.includes('U') && g1(y1, x2) - g1(y1, x1 - 1) !== 0) { return false; }
if (dir.includes('R') && g2(y2, x2 + 1) - g2(y1 - 1, x2 + 1) !== 0) { return false; }
if (dir.includes('D') && g1(y2 + 1, x2) - g1(y2 + 1, x1 - 1) !== 0) { return false; }
return true;
}
let emptycnt = 0;
forEachCell(c => { if (adjlist(c.adjborder).every(b => b.isnull || b.qsub !== BQSUB.link)) emptycnt++; });
forEachCell(cell => {
if (isLink(cell.adjborder.top)) { return; }
if (isLink(cell.adjborder.left)) { return; }
let wid = 1, hei = 1;
while (isLink(offset(cell, wid - .5, 0))) { wid++; }
while (isLink(offset(cell, 0, hei - .5))) { hei++; }
let sc = null;
for (let dx = 0; dx < wid; dx++) {
for (let dy = 0; dy < hei; dy++) {
if (offset(cell, dx, dy).qnum >= 0) {
sc = offset(cell, dx, dy);
}
}
}
if ([offset(cell, -.5, 0), offset(cell, 0, -.5), offset(cell, wid - .5, 0), offset(cell, 0, hei - .5)]
.every(b => b.isnull || b.qans)) { return; }
// ignore empty cell when there are too many
if (emptycnt > 500 && sc === null) { return; }
let rectlist = [];
for (let dl = 0; isRectAble(offset(cell, dl, 0), offset(cell, 0, 0)); dl--) {
if (!isRectAble2(offset(cell, dl, 0), offset(cell, 0, 0), ['L'])) { continue; }
for (let dr = wid - 1; isRectAble(offset(cell, dl, 0), offset(cell, dr, 0)); dr++) {
if (!isRectAble2(offset(cell, dl, 0), offset(cell, dr, 0), ['L', 'R'])) { continue; }
for (let du = 0; isRectAble(offset(cell, dl, du), offset(cell, dr, 0)); du--) {
if (!isRectAble2(offset(cell, dl, du), offset(cell, dr, 0), ['L', 'R', 'U'])) { continue; }
for (let dd = hei - 1; isRectAble(offset(cell, dl, du), offset(cell, dr, dd)); dd++) {
if (!isRectAble2(offset(cell, dl, du), offset(cell, dr, dd))) { continue; }
if (!isSizeAble(dr - dl + 1, dd - du + 1, sc, offset(cell, dl, du))) { continue; }
rectlist.push({ dl: dl, du: du, dr: dr, dd: dd });
}
}
}
}
if (rectlist.length === 0) { return; }
let ml = rectlist.reduce((m, obj) => Math.max(m, obj.dl), -board.cols);
let mu = rectlist.reduce((m, obj) => Math.max(m, obj.du), -board.rows);
let mr = rectlist.reduce((m, obj) => Math.min(m, obj.dr), +board.cols);
let md = rectlist.reduce((m, obj) => Math.min(m, obj.dd), +board.rows);
for (let j = ml; j < mr; j++) { add_link(offset(cell, j + .5, 0)); }
for (let j = mu; j < md; j++) { add_link(offset(cell, 0, j + .5)); }
if (rectlist.every(obj => obj.dl === ml)) { add_side(offset(cell, ml - .5, 0)); }
if (rectlist.every(obj => obj.dr === mr)) { add_side(offset(cell, mr + .5, 0)); }
if (rectlist.every(obj => obj.du === mu)) { add_side(offset(cell, 0, mu - .5)); }
if (rectlist.every(obj => obj.dd === md)) { add_side(offset(cell, 0, md + .5)); }
});
}
function NoCrossingBorder() {
for (let i = 0; i < board.cross.length; i++) {
let cross = board.cross[i];
let list = adjlist(cross.adjborder);
if (list.filter(b => !b.isnull && b.qans).length === 3) {
list.forEach(b => add_link(b));
}
}
}
function RoomPassOnce() {
for (let i = 0; i < board.roommgr.components.length; i++) {
let room = board.roommgr.components[i];
let list = [];
for (let j = 0; j < room.clist.length; j++) {
let cell = room.clist[j];
fourside((nb, nc) => {
if (!nc.isnull && nc.room !== room) {
list.push(nb);
}
}, cell.adjborder, cell.adjacent);
}
if (list.filter(b => b.line).length === 2) {
list.forEach(b => add_cross(b));
}
if (list.filter(b => b.qsub !== BQSUB.cross).length === 2) {
list.forEach(b => add_line(b));
}
}
}
// see all checks from ui.puzzle.pzpr.common.AnsCheck.prototype
// see used checks from ui.puzzle.checker.checklist_normal
function GeneralAssist() {
const checklist = ui.puzzle.checker.checklist_normal;
const numberRemainsUnshaded = ui.puzzle.board.cell[0].numberRemainsUnshaded;
let isGreen = c => !c.isnull && c.qsub === CQSUB.green;;
if (numberRemainsUnshaded) {
isGreen = c => c.qsub === CQSUB.dot || c.qnum !== CQNUM.none;
add_green = add_dot;
}
if (checklist.some(f => f.name === "checkConnectShade")) {
CellConnected({
isShaded: isBlack,
isUnshaded: isGreen,
add_shaded: add_black,
add_unshaded: add_green,
});
}
if (checklist.some(f => f.name === "checkConnectUnshadeRB" || f.name === "checkConnectUnshade")) {
CellConnected({
isShaded: isGreen,
isUnshaded: isBlack,
add_shaded: add_green,
add_unshaded: add_black,
});
}
if (checklist.some(f => f.name === "checkConnectShadeOutside")) {
CellConnected({
isShaded: isBlack,
isUnshaded: isGreen,
add_shaded: add_black,
add_unshaded: add_green,
OutsideAsShaded: true,
});
}
if (checklist.some(f => f.name === "checkAdjacentShadeCell")) {
BlackNotAdjacent();
}
if (checklist.some(f => f.name === "check2x2ShadeCell")) {
No2x2Cell({
isShaded: isBlack,
add_unshaded: add_green,
})
}
if (checklist.some(f => f.name === "check2x2UnshadeCell")) {
No2x2Cell({
isShaded: isGreen,
add_unshaded: add_black,
})
}
if (checklist.some(f => f.name === "checkDeadendLine") &&
checklist.some(f => f.name === "checkBranchLine") &&
checklist.some(f => f.name === "checkCrossLine") &&
checklist.some(f => f.name === "checkOneLoop")) {
SingleLoopInCell();
}
if (checklist.some(f => f.name === "checkRoomPassOnce")) {
RoomPassOnce();
}
if (checklist.some(f => f.name === "checkUnshadeOnCircle")) {
forEachCell(c => { if (c.qnum === CQNUM.wcir) add_green(c); })
}
if (checklist.some(f => f.name === "checkShadeOnCircle")) {
forEachCell(c => { if (c.qnum === CQNUM.bcir) add_black(c); })
}
if (checklist.some(f => f.name === "checkUnshadeSquare")) {
RectRegion_Cell({
isShaded: isGreen,
isUnshaded: isBlack,
add_shaded: add_green,
add_unshaded: add_black,
isSquare: true,
})
}
if (checklist.some(f => f.name === "checkBorderCross")) {
NoCrossingBorder();
}
if (checklist.some(f => f.name === "checkNumberAndUnshadeSize")) {
forEachCell(c => { if (c.qnum !== CQNUM.none) add_green(c); })
SizeRegion_Cell({
isShaded: isGreen,
isUnshaded: isBlack,
add_shaded: add_green,
add_unshaded: c => add_black(c, true),
OneNumPerRegion: checklist.some(f => f.name === "checkNoNumberInUnshade") &&
checklist.some(f => f.name === "checkDoubleNumberInUnshade"),
});
}
if (checklist.some(f => f.name === "checkNumberSize")) {
SizeRegion_Cell({
isShaded: isBlack,
isUnshaded: isGreen,
add_shaded: add_black,
add_unshaded: add_green,
OneNumPerRegion: checklist.some(f => f.name === "checkNoNumberInUnshade") &&
checklist.some(f => f.name === "checkDoubleNumberInUnshade"),
NoUnshadedNum: false,
});
SizeRegion_Cell({
isShaded: isGreen,
isUnshaded: isBlack,
add_shaded: add_green,
add_unshaded: add_black,
OneNumPerRegion: checklist.some(f => f.name === "checkNoNumberInUnshade") &&
checklist.some(f => f.name === "checkDoubleNumberInUnshade"),
NoUnshadedNum: false,
});
}
}
// assist for certain genre
function KropkiAssist() {
let add_candidate = function (c, l) {
if (c.isnull || c.anum !== -1) { return; }
while (l.length < 4) { l.push(-1); }
if (c.snum.join(',') === l.join(',')) { return; }
if (step && flg) { return; }
flg = true;
[0, 1, 2, 3].forEach(n => c.setSnum(n, l[n]));
c.draw();
}
let add_number = function (c, n) {
if (c.isnull || c.anum !== -1) { return; }
if (step && flg) { return; }
flg = true;
[0, 1, 2, 3].forEach(n => c.setSnum(n, -1));
c.setAnum(n);
c.draw();
}
let size = board.rows;
forEachCell(cell => {
if (cell.qnum !== CQNUM.none) {
add_number(cell, cell.qnum);
}
});
forEachCell(cell => {
if (cell.anum !== -1) { return; }
let arr = () => Array(size).fill().map((_, i) => i + 1);
let cand = arr(), row = arr(), col = arr();
forEachCell(c => {
if (cell === c) { return; }
let b = c.anum === -1 && c.snum.every(n => n === -1);
if (cell.bx === c.bx) { col = b ? [] : col.filter(n => n !== c.anum && !c.snum.includes(n)); }
if (cell.by === c.by) { row = b ? [] : row.filter(n => n !== c.anum && !c.snum.includes(n)); }
if (c.anum === -1) { return; }
if (cell.bx === c.bx || cell.by === c.by) {
cand = cand.filter(n => n !== c.anum);
}
});
if (col.length === 1) { add_number(cell, col[0]); return; }
if (row.length === 1) { add_number(cell, row[0]); return; }
if (cell.snum.some(n => n !== -1)) {
add_candidate(cell, cell.snum.filter(n => cand.includes(n)).sort((a, b) => (a - b)));
cand = cand.filter(n => cell.snum.includes(n));
}
if (cell.snum.filter(n => n !== -1).length === 1) {
add_number(cell, cell.snum.find(n => n !== -1));
return;
}
for (let d = 0; d < 4; d++) {
if (offset(cell, .5, 0, d).isnull) { continue; }
let ncell = offset(cell, 1, 0, d);
let nlist = arr();
if (ncell.snum.some(n => n !== -1)) { nlist = ncell.snum; }
if (ncell.anum !== -1) { nlist = [ncell.anum]; }
if (offset(cell, .5, 0, d).qnum === BQNUM.wcir) {
cand = cand.filter(n => nlist.includes(n - 1) || nlist.includes(n + 1));
}
if (offset(cell, .5, 0, d).qnum === BQNUM.bcir) {
cand = cand.filter(n => nlist.includes(n / 2) || nlist.includes(n * 2));
}
if (offset(cell, .5, 0, d).qnum === BQNUM.none) {
cand = cand.filter(n => nlist.some(m => ![n - 1, n + 1, n / 2, n * 2].includes(m)));
}
}
if (cand.length <= 4) {
add_candidate(cell, cand);
}
});
}
function MidloopAssist() {
SingleLoopInCell({
isPass: c => c.qnum === CQNUM.bcir,
});
let isDot = c => !c.isnull && c.qnum === CQNUM.bcir;
forEachCell(cell => {
for (let d = 0; d < 4; d++) {
if (isDot(cell) && offset(cell, .5, .5, d).qsub !== 0) {
add_inout(offset(cell, -.5, -.5, d), offset(cell, .5, .5, d).qsub ^ 1);
}
}
});
for (let i = board.minbx + 1; i <= board.maxbx - 1; i++) {
for (let j = board.minby + 1; j <= board.maxby - 1; j++) {
let obj = board.getobj(i, j);
if (!isDot(obj)) { continue; }
let d, b1, b2;
if (i % 2 === 0 && j % 2 === 0) { continue; }
if (i % 2 === 0 || j % 2 === 0) {
add_line(obj);
d = (i % 2 === 0 ? 0 : 1);
b1 = b2 = obj;
}
if (i % 2 === 1 && j % 2 === 1) {
if (adjlist(obj.adjborder).every(b => !b.isnull && !b.line && b.qsub !== BQSUB.cross) &&
[offset(obj, 0, -.5), offset(obj, 0, -1), offset(obj, 0, +.5), offset(obj, 0, +1),
offset(obj, -.5, 0), offset(obj, -1, 0), offset(obj, +.5, 0), offset(obj, +1, 0),].every(obj => !isDot(obj))) { continue; }
if ([obj.adjborder.top, obj.adjborder.bottom].some(b => b.isnull || b.qsub === BQSUB.cross) ||
[obj.adjborder.left, obj.adjborder.right].some(b => !b.isnull && b.line) ||
[offset(obj, 0, -.5), offset(obj, 0, -1),
offset(obj, 0, +.5), offset(obj, 0, +1),].some(obj => isDot(obj))) {
d = 0;
b1 = obj.adjborder.left;
b2 = obj.adjborder.right;
} else {
d = 1;
b1 = obj.adjborder.top;
b2 = obj.adjborder.bottom;
}
add_line(b1);
add_line(b2);
}
while (!b1.isnull && !b2.isnull && (b1.line || b2.line)) {
add_line(b1);
add_line(b2);
b1 = offset(b1, -1, 0, d);
b2 = offset(b2, +1, 0, d);
if (b1.qsub === BQSUB.cross || b2.qsub === BQSUB.cross ||
b1.isnull || b2.isnull ||
[offset(b1, -.5, 0, d), offset(b1, -1, 0, d),
offset(b2, +.5, 0, d), offset(b2, +1, 0, d),].some(obj => isDot(obj))) {
add_cross(b1);
add_cross(b2);
}
}
}
}
}
function PipelinkAssist() {
forEachCell(cell => {
// 11:╋; 12:┃; 13:━; 14:┗; 15:┛; 16:┓; 17:┏
const tmp = [ // ques, u, l, d, r
[11, 1, 1, 1, 1],
[12, 1, 0, 1, 0],
[13, 0, 1, 0, 1],
[14, 1, 0, 0, 1],
[15, 1, 1, 0, 0],
[16, 0, 1, 1, 0],
[17, 0, 0, 1, 1],
];
if (cell.ques === CQUES.none) { return; }
adjlist(cell.adjborder).forEach((b, i) => tmp[cell.ques - 11][i + 1] === 1 ? add_line(b) : add_cross(b));
});
forEachCell(cell => {
let list = adjlist(cell.adjborder);
let linecnt = list.filter(b => !b.isnull && b.line).length;
let crosscnt = list.filter(b => b.isnull || b.qsub === BQSUB.cross).length;
if (linecnt === 3 || crosscnt === 2) {
fourside(add_line, cell.adjborder);
}
if (linecnt === 2 && crosscnt === 1) {
fourside(add_cross, cell.adjborder);
}
for (let d = 0; d < 4; d++) {
if (!offset(cell, 0.5, 0, d).line || !offset(cell, 0, 0.5, d).line) { continue; }
if ((b => b.isnull || b.line || b.qsub === BQSUB.cross)(offset(cell, -.5, 0, d))) { continue; }
if ((b => b.isnull || b.line || b.qsub === BQSUB.cross)(offset(cell, 0, -.5, d))) { continue; }
let dd = d;
let pcell = offset(cell, 1, 0, dd);
while (pcell !== cell) {
if (!offset(pcell, 0.5, 0, dd).line) {
if ((b => !b.isnull && b.qsub !== BQSUB.cross)(offset(pcell, .5, 0, dd))) { break; }
if (!offset(pcell, .5, 0, dd - 1).line && !offset(pcell, .5, 0, dd + 1).line) { break; }
dd = (offset(pcell, .5, 0, dd - 1).line ? dd + 3 : dd + 1) % 4;
}
pcell = offset(pcell, 1, 0, dd);
}
if (pcell === cell && board.linegraph.components.length > 1) {
fourside(add_line, cell.adjborder);
}
}
});
}
function RingringAssist() {
let isWall = c => c.ques === 1;
let isNotPathable = b => b.isnull || b.qsub === BQSUB.cross;
forEachCell(cell => {
if (isWall(cell)) {
fourside(add_cross, cell.adjborder);
}
if (cell.lcnt === 3) {
fourside(add_line, cell.adjborder);
}
if (cell.lcnt === 2 && adjlist(cell.adjborder).some(b => isNotPathable(b))) {
fourside(add_cross, cell.adjborder);
}
let templist = adjlist(cell.adjborder, cell.adjacent);
templist = templist.filter(([nb, nc]) => !(nc.isnull || isWall(nc) || nb.qsub === BQSUB.cross));
if (templist.length === 2) {
templist.forEach(([nb, nc]) => add_line(nb));
}
});
// make the right turning
forEachCell(cell => {
for (let d = 0; d < 4; d++) {
if (!offset(cell, 0, -.5, d).line || !offset(cell, -.5, 0, d).line) { continue; }
if (!isNotPathable(offset(cell, 0, .5, d))) { continue; }
let pcell = cell;
while (offset(pcell, 0, -.5, d).line) {
pcell = offset(pcell, 0, -1, d);
if (isNotPathable(offset(pcell, 0, -.5, d))) {
add_line(offset(pcell, -.5, 0, d));
add_cross(offset(pcell, .5, 0, d));
break;
}
if (offset(pcell, .5, 0, d).line) {
fourside(add_line, pcell.adjborder);
}
}
}
for (let d = 0; d < 4; d++) {
if (!offset(cell, 0, -.5, d).line || !offset(cell, .5, 0, d).line) { continue; }
if (!isNotPathable(offset(cell, 0, .5, d))) { continue; }
let pcell = cell;
while (offset(pcell, 0, -.5, d).line) {
pcell = offset(pcell, 0, -1, d);
if (isNotPathable(offset(pcell, 0, -.5, d))) {
add_line(offset(pcell, .5, 0, d));
add_cross(offset(pcell, -.5, 0, d));
break;
}
if (offset(pcell, -.5, 0, d).line) {
fourside(add_line, pcell.adjborder);
}
}
}
});
forEachCell(cell => {
for (let d = 0; d < 4; d++) {
if (!offset(cell, 0, .5, d).line || !offset(cell, .5, 0, d).line) { continue; }
if (!isNotPathable(offset(cell, 0, -.5, d)) && !isNotPathable(offset(cell, -.5, 0, d))) { continue; }
let h = 1, w = 1;
while (offset(cell, 0, h + .5, d).line) { h++; }
while (offset(cell, w + .5, 0, d).line) { w++; }
let fg = false;
do {
fg = false;
for (let i = 1; i <= h; i++) {
while (isWall(offset(cell, w, i, d)) || offset(cell, w, i - .5, d).qsub === BQSUB.cross) {
add_line(offset(cell, w + .5, 0, d));
w++;
fg = true;
}
}
for (let i = 1; i <= w; i++) {
while (isWall(offset(cell, i, h, d)) || offset(cell, i - .5, h, d).qsub === BQSUB.cross) {
add_line(offset(cell, 0, h + .5, d));
h++;
fg = true;
}
}
} while (fg);
if (isNotPathable(offset(cell, w + .5, 0, d))) {
for (let i = 1; i <= h; i++) {
add_line(offset(cell, w, i - .5, d));
}
if (isNotPathable(offset(cell, 0, h + .5, d)) || isNotPathable(offset(cell, w, h + .5, d))) {
add_cross(offset(cell, 0, h + .5, d));
add_cross(offset(cell, w, h + .5, d));
}
}
if (isNotPathable(offset(cell, 0, h + .5, d))) {
for (let i = 1; i <= w; i++) {
add_line(offset(cell, i - .5, h, d));
}
if (isNotPathable(offset(cell, w + .5, 0, d)) || isNotPathable(offset(cell, w + .5, h, d))) {
add_cross(offset(cell, w + .5, 0, d));
add_cross(offset(cell, w + .5, h, d));
}
}
}
});
}
function NonogramAssist() {
// deduce each clue
let f = function (nl, cl) {
let len = cl.length;
let ll = new Array(nl.length);
ll[ll.length - 1] = len - nl[ll.length - 1];
for (let i = ll.length - 2; i >= 0; i--) {
ll[i] = ll[i + 1] - nl[i] - 1;
}
let dcnt = new Array(len);
let bcnt = new Array(len);
for (let i = 0; i < len; i++) {
dcnt[i] = (i > 0 ? dcnt[i - 1] : 0) + (cl[i].qsub === CQSUB.dot ? 1 : 0);
bcnt[i] = (i > 0 ? bcnt[i - 1] : 0) + (cl[i].qans ? 1 : 0);
}
let res = [];
const MAXSIT = 1000;
let gen = function (n = 0, l = []) {
if (res.length > MAXSIT) { return; }
if (n === nl.length) {
if (l.length > len) { l = l.slice(0, len); }
if (l.length > 0 && bcnt[len - 1] > bcnt[l.length - 1]) { return; }
if (l.length < len) { l = [...l, ...Array(len - l.length).fill(0)]; }
res.push(l);
return;
}
for (let i = l.length; i <= ll[n]; i++) {
if (i + nl[n] < len && cl[i + nl[n]].qans) { continue; }
if ((i > 0 ? bcnt[i - 1] : 0) !== (l.length > 0 ? bcnt[l.length - 1] : 0)) { continue; }
if (dcnt[i + nl[n] - 1] > (i > 0 ? dcnt[i - 1] : 0)) { continue; }
gen(n + 1, [...l, ...Array(i - l.length).fill(0), ...Array(nl[n]).fill(1), 0]);
if (res.length > MAXSIT) { return; }
}
};
gen();
if (res.length === 0 || res.length > MAXSIT) { return; }
for (let i = 0; i < len; i++) {
if (res.every(l => l[i] === res[0][i])) {
if (res[0][i] === 0) { add_dot(cl[i]); }
if (res[0][i] === 1) { add_black(cl[i]); }
}
}
};
for (let i = 0; i < board.rows; i++) {
let nl = [], cl = [];
for (let j = board.minbx + 1; j <= -1; j += 2) { nl.push(board.getex(j, i * 2 + 1).qnum); }
for (let j = 0; j < board.cols; j++) { cl.push(board.getc(j * 2 + 1, i * 2 + 1)); }
nl = nl.filter(n => n >= 0);
f(nl, cl);
}
for (let i = 0; i < board.cols; i++) {
let nl = [], cl = [];
for (let j = board.minby + 1; j <= -1; j += 2) { nl.push(board.getex(i * 2 + 1, j).qnum); }
for (let j = 0; j < board.rows; j++) { cl.push(board.getc(i * 2 + 1, j * 2 + 1)); }
nl = nl.filter(n => n >= 0);
f(nl, cl);
}
}
function SudokuAssist() {
let add_candidate = function (c, l) {
if (c.isnull || c.anum !== -1) { return; }
while (l.length < 4) { l.push(-1); }
if (c.snum.join(',') === l.join(',')) { return; }
if (step && flg) { return; }
flg = true;
[0, 1, 2, 3].forEach(n => c.setSnum(n, l[n]));
c.draw();
}
let add_number = function (c, n) {
if (c.isnull || c.anum !== -1) { return; }
if (step && flg) { return; }
flg = true;
[0, 1, 2, 3].forEach(n => c.setSnum(n, -1));
c.setAnum(n);
c.draw();
}
let size = board.rows;
forEachCell(cell => {
if (cell.qnum !== CQNUM.none) {
add_number(cell, cell.qnum);
}
});
forEachCell(cell => {
if (cell.anum !== -1) { return; }
let arr = () => Array(size).fill().map((_, i) => i + 1);
let cand = arr(), row = arr(), col = arr(), box = arr();
forEachCell(c => {
if (cell === c) { return; }
let b = c.anum === -1 && c.snum.every(n => n === -1);
if (cell.bx === c.bx) { col = b ? [] : col.filter(n => n !== c.anum && !c.snum.includes(n)); }
if (cell.by === c.by) { row = b ? [] : row.filter(n => n !== c.anum && !c.snum.includes(n)); }
if (cell.room === c.room) { box = b ? [] : box.filter(n => n !== c.anum && !c.snum.includes(n)); }
if (c.anum === -1) { return; }
if (cell.bx === c.bx || cell.by === c.by || cell.room === c.room) {
cand = cand.filter(n => n !== c.anum);
}
});
if (col.length === 1) { add_number(cell, col[0]); return; }
if (row.length === 1) { add_number(cell, row[0]); return; }
if (box.length === 1) { add_number(cell, box[0]); return; }
if (cell.snum.some(n => n !== -1)) {
add_candidate(cell, cell.snum.filter(n => cand.includes(n)).sort((a, b) => (a - b)));
}
if (cell.snum.filter(n => n !== -1).length === 1) {
add_number(cell, cell.snum.find(n => n !== -1));
return;
}
if (cell.snum.every(n => n === -1) && cand.length <= 4) {
add_candidate(cell, cand);
}
});
}
function CirclesAndSquaresAssist() {
forEachCell(c => { if (c.qnum === CQNUM.wcir) add_green(c); });
forEachCell(c => { if (c.qnum === CQNUM.bcir) add_black(c); });
No2x2Black();
BlackConnected();
RectRegion_Cell({
isShaded: isGreen,
isUnshaded: isBlack,
add_shaded: add_green,
add_unshaded: add_black,
isSquare: true,
})
}
function TatamibariAssist() {
RectRegion_Border({
isSizeAble: (w, h, sc, c) => {
if (sc !== null && !(sc.qnum === 1 && w === h || sc.qnum === 2 && w < h || sc.qnum === 3 && w > h)) { return false; }
for (let i = 0; i < w; i++) {
for (let j = 0; j < h; j++) {
if (sc !== null && offset(c, i, j) !== sc && offset(c, i, j).qnum !== CQNUM.none) { return false; }
if (sc === null && offset(c, i, j).qnum !== CQNUM.none) { sc = offset(c, i, j); }
}
}
if (sc === null) { return false; }
return sc.qnum === CQNUM.quesmark || sc.qnum === 1 && w === h || sc.qnum === 2 && w < h || sc.qnum === 3 && w > h;
}
});
NoCrossingBorder();
}
function PencilsAssist() {
let add_tip = function (c, dir) { // 1=↑, 2=↓, 3=←, 4=→
if (c === undefined || c.isnull || isGreen(c) || c.anum !== CANUM.none) { return; }
if (step && flg) { return; }
flg = true;
c.setQsub(CQSUB.yellow);
c.setAnum(dir);
c.draw();
}
let add_yellow = function (c) {
if (c === undefined || c.isnull || c.qans !== CQANS.none || c.qsub !== CQSUB.none) { return; }
if (step && flg) { return; }
flg = true;
c.setQsub(CQSUB.yellow);
c.draw();
};
let add_cross = function (b) {
if (b === undefined || b.isnull || b.line || b.qsub !== BQSUB.none || b.qans || b.ques) { return; }
if (step && flg) { return; }
b.setQsub(BQSUB.cross);
b.draw();
flg |= b.qsub === BQSUB.cross;
};
for (let i = 0; i < board.border.length; i++) {
let border = board.border[i];
if (border.qans && border.qsub === BQSUB.cross) {
border.setQsub(BQSUB.none);
}
}
// record cells with line that belongs to a tip
let cllist = [];
forEachCell(cell => {
if (cell.anum !== CANUM.none) {
let dfs = function (c) {
if (c.isnull || cllist.includes(c)) { return; }
cllist.push(c);
fourside((nb, nc) => {
if (!nb.isnull && nb.line) {
dfs(nc);
}
}, c.adjborder, c.adjacent);
}
dfs(cell);
}
});
let isTipAble = function (c, dir) {
if (c.isnull || cllist.includes(c) && c.anum !== dir || isGreen(c)) {
return false;
}
return true;
}
forEachCell(cell => {
if (cell.qdir !== 0) {
add_tip(cell, cell.qdir);
}
if (cell.qnum !== CQNUM.none) {
add_green(cell);
}
if (cell.qnum === 1) {
fourside(add_side, cell.adjborder);
}
if (cell.qnum > 1) {
// extend clue
for (let d = 0; d < 2; d++) {
let ll = 0, rr = 0;
while ((b => !b.isnull && b.qsub === BQSUB.cross)(offset(cell, ll - .5, 0, d)) &&
offset(cell, ll - 1, 0, d).qsub !== CQSUB.yellow) { ll--; }
while ((b => !b.isnull && b.qsub === BQSUB.cross)(offset(cell, rr + .5, 0, d)) &&
offset(cell, rr + 1, 0, d).qsub !== CQSUB.yellow) { rr++; }
let lc = ll, rc = rr;
while ((c => !c.isnull && c.qsub !== CQSUB.yellow && (c.qnum < 0 || c.qnum === cell.qnum))(offset(cell, lc - 1, 0, d)) &&
!offset(cell, lc - .5, 0, d).qans && lc > 1 - cell.qnum + rr) {
lc--;
}
while ((c => !c.isnull && c.qsub !== CQSUB.yellow && (c.qnum < 0 || c.qnum === cell.qnum))(offset(cell, rc + 1, 0, d)) &&
!offset(cell, rc + .5, 0, d).qans && rc < cell.qnum - 1 + ll) {
rc++;
}
if ((b => b.isnull || b.qans)(offset(cell, 0, .5, d)) && (b => b.isnull || b.qans)(offset(cell, 0, -.5, d))) {
for (let j = rc - cell.qnum + 1; j <= lc + cell.qnum - 1; j++) {
add_green(offset(cell, j, 0, d));
add_side(offset(cell, j, -.5, d));
add_side(offset(cell, j, +.5, d));
if (j < lc + cell.qnum - 1) {
add_cross(offset(cell, j + .5, 0, d));
}
}
if (rc - lc + 1 === cell.qnum) {
add_side(offset(cell, rc + .5, 0, d));
add_side(offset(cell, lc - .5, 0, d));
if (!isTipAble(offset(cell, rc + 1, 0, d), d === 0 ? 4 : 1)) {
add_tip(offset(cell, lc - 1, 0, d), d === 0 ? 3 : 2)
}
if (!isTipAble(offset(cell, lc - 1, 0, d), d === 0 ? 3 : 2)) {
add_tip(offset(cell, rc + 1, 0, d), d === 0 ? 4 : 1)
}
}
}
if (rc - lc + 1 === cell.qnum && !isTipAble(offset(cell, rc + 1, 0, d), d === 0 ? 4 : 1) &&
!isTipAble(offset(cell, lc - 1, 0, d), d === 0 ? 3 : 2)) {
add_side(offset(cell, +.5, 0, d));
add_side(offset(cell, -.5, 0, d));
}
if (rc - lc + 1 < cell.qnum) {
add_side(offset(cell, +.5, 0, d));
add_side(offset(cell, -.5, 0, d));
}
}
}
// add tip
if (isGreen(cell) && (b => b.isnull || b.qans)(offset(cell, -.5, 0)) && (b => b.isnull || b.qans)(offset(cell, 0, -.5))) {
let dc = 0, rc = 0;
while ((b => !b.isnull && b.qsub === BQSUB.cross)(offset(cell, 0, dc + .5))) { dc++; }
while ((b => !b.isnull && b.qsub === BQSUB.cross)(offset(cell, rc + .5, 0))) { rc++; }
if ((b => b.isnull || b.qans)(offset(cell, 0, dc + .5)) && (b => b.isnull || b.qans)(offset(cell, rc + .5, 0))) {
let list = [];
if (dc === 0) {
list.push([offset(cell, -1, 0), 3]);
list.push([offset(cell, rc + 1, 0), 4]);
}
if (rc === 0) {
list.push([offset(cell, 0, -1), 1]);
list.push([offset(cell, 0, dc + 1), 2]);
}
list = list.filter(p => isTipAble(p[0], p[1]));
if (list.length === 1) {
add_tip(list[0][0], list[0][1]);
}
}
}
// extend to match line and pencil
if (cell.anum !== CANUM.none) {
add_yellow(cell);
let d = qdirRemap(cell.anum);
add_green(offset(cell, 0, 1, d));
add_side(offset(cell, 0, .5, d));
add_side(offset(cell, -.5, 1, d));
add_side(offset(cell, +.5, 1, d));
let pc = cell, lc = cell, llc = cell;
while (offset(pc, 0, .5, d).qsub === BQSUB.cross || pc === cell) {
let list = adjlist(lc.adjborder, lc.adjacent);
list = list.filter(([nb, nc]) => {
if (nc === llc) { return false; }
if (nc.isnull || isGreen(nc) || nc.anum !== CANUM.none) { return false; }
if (cllist.includes(nc) && !nb.line) { return false; }
if (nb.isnull || nb.qsub === BQSUB.cross || nb.qans) { return false; }
return true;
});
if (list.some(p => p[0].line)) {
list = list.filter(p => p[0].line);
}
if (list.length !== 1) { break; }
add_line(list[0][0]);
fourside((nb, nc) => {
if (nc.qsub === CQSUB.yellow) {
add_cross(nb);
}
}, lc.adjborder, lc.adjacent);
llc = lc;
lc = list[0][1];
pc = offset(pc, 0, 1, d);
add_yellow(lc);
}
while (lc.lcnt === 2 || lc === cell && lc.lcnt === 1) {
add_cross(offset(pc, 0, .5, d));
pc = offset(pc, 0, 1, d);
add_green(pc);
add_side(offset(pc, -.5, 0, d));
add_side(offset(pc, +.5, 0, d));
[llc, lc] = [lc, adjlist(lc.adjborder, lc.adjacent).find(([nb, nc]) => !nb.isnull && nb.line && nc !== llc)[1]];
}
if (adjlist(lc.adjborder, lc.adjacent).every(([nb, nc]) =>
nc === llc || nb.isnull || nb.qsub === BQSUB.cross || nb.qans)) {
add_side(offset(pc, 0, .5, d));
}
if (pc !== cell && (b => b.isnull || b.qans)(offset(pc, 0, .5, d))) {
fourside((nb, nc) => {
if (nc.qsub === CQSUB.yellow) {
add_cross(nb);
}
}, lc.adjborder, lc.adjacent);
}
}
if (cell.lcnt === 0 && adjlist(cell.adjborder, cell.adjacent).every(([nb, nc]) => nb.isnull || nb.qans || nb.qsub === BQSUB.cross || isGreen(nc) || nc.lcnt === 2 || nc.lcnt === 1 && nc.anum !== CANUM.none)) {
add_green(cell);
}
if (adjlist(cell.adjborder, cell.adjacent).every(([nb, nc]) => {
if (nc.isnull || nb.qans && isGreen(nc)) { return true; }
if (cllist.includes(nc) && nc.anum === CANUM.none) { return true; }
if (nc.anum !== CANUM.none && offset(nc, 0, 1, qdirRemap(nc.anum)) !== cell) { return true; }
return false;
})) {
add_yellow(cell);
}
if (cell.lcnt > 0) {
add_yellow(cell);
}
if (cell.qsub === CQSUB.yellow && adjlist(cell.adjborder).filter(b => !b.isnull && !b.qans && b.qsub !== BQSUB.cross).length === 1) {
add_line(adjlist(cell.adjborder).find(b => !b.isnull && !b.qans && b.qsub !== BQSUB.cross));
}
if ([[offset(cell, -1, 0), 3], [offset(cell, 1, 0), 4], [offset(cell, 0, -1), 1], [offset(cell, 0, 1), 2]].every(([c, d]) => !isTipAble(c, d)) &&
adjlist(cell.adjborder).filter(b => !b.isnull && !b.qans).length === 1) {
add_cross(adjlist(cell.adjborder).find(b => !b.isnull && !b.qans));
}
for (let d = 0; d < 4; d++) {
let nc = offset(cell, 1, 0, d);
if (nc.isnull) { continue; }
// cross between cells in cllist
if (cllist.includes(cell) && cllist.includes(nc)) {
add_cross(offset(cell, .5, 0, d));
}
// add side between inner and outer
if (cell.qsub !== CQSUB.none && nc.qsub !== CQSUB.none && cell.qsub !== nc.qsub) {
add_side(offset(cell, .5, 0, d));
}
// extend pencil by cross mark
if (isGreen(cell) && (b => b.qsub === BQSUB.cross && !b.qans)(offset(cell, .5, 0, d))) {
add_side(offset(cell, 0, -.5, d));
add_side(offset(cell, 0, +.5, d));
add_side(offset(cell, 1, -.5, d));
add_side(offset(cell, 1, +.5, d));
add_green(nc);
}
// different clue
if (cell.qnum > 0 && nc.qnum > 0 && cell.qnum !== nc.qnum) {
add_side(offset(cell, .5, 0, d));
}
}
});
}
function MoonOrSunAssist() {
RoomPassOnce();
SingleLoopInCell({
isPass: c => {
if (c.qnum === CQNUM.none) { return false; }
if (c.qnum === CQNUM.moon && c.room.count.moon.passed > 0) { return true; }
if (c.qnum === CQNUM.sun && c.room.count.sun.passed > 0) { return true; }
for (let i = 0; i < c.room.clist.length; i++) {
let c2 = c.room.clist[i];
if (c2.qnum !== c.qnum && c2.qsub === CQSUB.cross) { return true; }
}
return false;
},
});
let add_Xcell = function (c) {
if (c === undefined || c.isnull || c.lcnt > 0 || c.qnum === CQNUM.none || c.qsub === CQSUB.cross) { return; }
if (step && flg) { return; }
flg = true;
c.setQsub(CQSUB.cross);
c.draw();
}
let roomType = c => {
if (c.room.count.sun.passed > 0) return 1;
if (c.room.count.moon.passed > 0) return 2;
for (let i = 0; i < c.room.clist.length; i++) {
let c2 = c.room.clist[i];
if (c2.qnum === CQNUM.moon && c2.qsub === CQSUB.cross) { return 1; }
if (c2.qnum === CQNUM.sun && c2.qsub === CQSUB.cross) { return 2; }
}
return 0;
}
forEachCell(cell => {
fourside((nb, nc) => {
if (nc.isnull || cell.room === nc.room) { return; }
if (nb.line && roomType(nc) !== 0) {
for (let j = 0; j < cell.room.clist.length; j++) {
let cell2 = cell.room.clist[j];
if (cell2.qnum === roomType(nc)) {
add_Xcell(cell2);
}
}
}
if (roomType(nc) !== 0 && cell.qnum === roomType(nc)) {
add_cross(nb);
}
if (roomType(cell) !== 0 && roomType(nc) !== 0 && roomType(cell) === roomType(nc)) {
add_cross(nb);
}
}, cell.adjborder, cell.adjacent);
if (cell.qnum === CQNUM.none) { return; }
fourside((nb, nc) => {
if (nc.isnull || nc.qnum === CQNUM.none) { return; }
if ((cell.qnum === nc.qnum) ^ (cell.room === nc.room)) {
add_cross(nb);
}
}, cell.adjborder, cell.adjacent);
if (!adjlist(cell.adjborder).some(b => !b.isnull && b.qsub !== BQSUB.cross)) {
add_Xcell(cell);
}
if (roomType(cell) > 0 && cell.qnum !== roomType(cell)) {
add_Xcell(cell);
}
if (cell.qsub === CQSUB.cross) {
fourside(add_cross, cell.adjborder);
}
});
}
function ShikakuAssist() {
let s = Array.from(new Array(board.rows), () => new Array(board.cols).fill([]));
forEachCell(c => {
let x = (c.bx - 1) / 2, y = (c.by - 1) / 2;
let s1 = x > 0 ? s[y][x - 1] : [];
let s2 = y > 0 ? s[y - 1][x] : [];
s[y][x] = [...s1, ...s2.filter(c => !s1.includes(c))];
if (c.qnum !== CQNUM.none) { s[y][x].push(c); }
});
RectRegion_Border({
isSizeAble: (w, h, sc, c) => {
if (sc !== null && w * h !== sc.qnum) { return false; }
let x = (c.bx - 1) / 2 + w - 1, y = (c.by - 1) / 2 + h - 1;
let f = (a, b) => a < 0 || b < 0 ? [] : s[a][b];
if (f(y, x).length - f(y, x - w).length - f(y - h, x).length + f(y - h, x - w).length !== 1) { return false; }
sc = f(y, x).find(c => !f(y, x - w).includes(c) && !f(y - h, x).includes(c));
return sc.qnum === CQNUM.quesmark || w * h === sc.qnum;
}
});
}
function SquareJamAssist() {
RectRegion_Border({
isSizeAble: (w, h, sc, c) => {
if (w !== h) { return false; }
if (sc !== null && w !== sc.qnum) { return false; }
for (let i = 0; i < w; i++) {
for (let j = 0; j < h; j++) {
if (offset(c, i, j).qnum > 0 && sc === null) { sc = offset(c, i, j); }
if (offset(c, i, j).qnum > 0 && offset(c, i, j).qnum !== sc.qnum) { return false; }
}
}
return sc === null || w === sc.qnum;
}
});
NoCrossingBorder();
}
function TasquareAssist() {
RectRegion_Cell({
isShaded: isBlack,
isUnshaded: c => isGreen(c) || c.qnum !== CQNUM.none,
add_shaded: add_black,
add_unshaded: add_dot,
isSquare: true,
});
CellConnected({
isShaded: c => c.qsub === CQSUB.dot || c.qnum !== CQNUM.none,
isUnshaded: isBlack,
add_shaded: add_dot,
add_unshaded: add_black,
});
let is2x2able = function (c) {
for (let d = 0; d < 4; d++) {
let list = [c, offset(c, 0, 1, d), offset(c, 1, 0, d), offset(c, 1, 1, d)];
if (list.every(c => !c.isnull && c.qsub !== CQSUB.dot && c.qnum === CQNUM.none)) {
return true;
}
}
return false;
}
let isNotBlack = c => c.isnull || c.qsub === CQSUB.dot || c.qnum !== CQNUM.none;
forEachCell(cell => {
if (cell.qnum === CQNUM.none) { return; }
add_dot(cell);
let templist = adjlist(cell.adjacent);
if (templist.filter(c => !isNotBlack(c)).length === 1) {
templist.forEach(c => add_black(c, true));
}
if (cell.qnum === CQNUM.quesmark) { return; }
// black cells: n around 0~3, n-3 around 4~7, 2 around 8
if (cell.qnum <= 8) {
let list = adjlist(cell.adjacent).filter(c => !isNotBlack(c));
if ([0, 1, 2, 3].includes(cell.qnum) && list.length === cell.qnum ||
[4, 5, 6].includes(cell.qnum) && list.length === cell.qnum - 3 ||
cell.qnum === 8 && list.length === 2) {
list.forEach(c => add_black(c));
}
}
// 1*2^2 around 4~6, 2*2^2 around 8
if (cell.qnum >= 4 && cell.qnum <= 8) {
let list = [];
for (let d = 0; d < 4; d++) {
list.push([offset(cell, 2, 0, d), offset(cell, 1, 0, d)]);
}
list = list.filter(l => is2x2able(l[1]));
if (list.length === Math.floor(cell.qnum / 4)) {
list.forEach(l => { add_black(l[0]), add_black(l[1]) });
}
}
// · ·
// 3 -> 3
// · ·
if (cell.qnum === 3) {
add_dot(offset(cell, -1, -1));
add_dot(offset(cell, -1, 1));
add_dot(offset(cell, 1, -1));
add_dot(offset(cell, 1, 1));
}
for (let d = 0; d < 4; d++) {
// ? █ -> ?·█ (?<=3)
if (cell.qnum <= 3 && isBlack(offset(cell, 2, 0, d))) {
add_dot(offset(cell, 1, 0, d));
}
// 4 · -> 4··
if (cell.qnum === 4 && isNotBlack(offset(cell, 2, 0, d))) {
add_dot(offset(cell, 1, 0, d));
}
// · ·
// ·1 -> ·1
// ·
if (cell.qnum === 1 && isNotBlack(offset(cell, 0, -1, d)) && isNotBlack(offset(cell, -1, 0, d))) {
add_dot(offset(cell, 1, 1, d));
}
// · ·
// 2 -> 2
// · ·
if (cell.qnum === 2 && isNotBlack(offset(cell, 0, -1, d))) {
add_dot(offset(cell, -1, 1, d));
add_dot(offset(cell, 1, 1, d));
}
}
let blist = [];
let dfs = function (c) {
if (blist.includes(c) || c.isnull || c.qans !== CQANS.black) { return; }
blist.push(c);
fourside(dfs, c.adjacent);
}
adjlist(cell.adjacent).forEach(c => dfs(c));
if (blist.length === cell.qnum) {
fourside(add_dot, cell.adjacent);
blist.forEach(c => fourside(add_dot, c.adjacent));
}
});
}
function TentaishoAssist() {
let isDot = obj => obj.qnum > 0;
let isEmpty = c => !c.isnull && c.ques !== CQUES.bwall;
for (let i = 0; i < board.cross.length; i++) {
let cross = board.cross[i];
let list = adjlist(cross.adjborder);
if (list.filter(b => !b.isnull && b.qsub === BQSUB.link).length === 2 && cross.lcnt === 1) {
list.forEach(b => add_side(b));
}
if (list.filter(b => !b.isnull && b.qsub === BQSUB.link).length === 3) {
list.forEach(b => add_link(b));
}
}
let n = 0;
let id = new Map(); // map every cell to unique dot id
let dotmap = new Map(); // get dot obj
let bfs_id = function (clist, n) {
while (clist.length > 0) {
let c = clist.pop();
let x = dotmap.get(n).bx;
let y = dotmap.get(n).by;
if (!isEmpty(c) || id.has(c)) { continue; }
id.set(c, n);
let fn = function (bbx, bby, cbx, cby) {
let nb = board.getb(bbx, bby);
let nc = board.getc(cbx, cby);
if (!isEmpty(nc) || nb.qans || id.has(nc) && id.get(nc) !== id.get(c)) {
add_side(nb);
add_side(board.getb(2 * x - bbx, 2 * y - bby));
}
if (id.has(nc) && id.get(nc) === id.get(c)) {
add_link(nb);
}
if (isEmpty(nc) && nb.qsub === BQSUB.link) {
add_link(board.getb(2 * x - bbx, 2 * y - bby));
clist.push(nc);
clist.push(board.getc(2 * x - cbx, 2 * y - cby));
}
};
fn(c.bx - 1, c.by, c.bx - 2, c.by);
fn(c.bx + 1, c.by, c.bx + 2, c.by);
fn(c.bx, c.by - 1, c.bx, c.by - 2);
fn(c.bx, c.by + 1, c.bx, c.by + 2);
}
};
let id_choice = new Map();
let dfs_idc = function (c, n) {
let x = dotmap.get(n).bx;
let y = dotmap.get(n).by;
let oc = board.getc(2 * x - c.bx, 2 * y - c.by);
if (!isEmpty(c) || id.has(c) && id.get(c) !== n) { return; }
if (!isEmpty(oc) || id.has(oc) && id.get(oc) !== n) { return; }
if (id_choice.has(c) && id_choice.get(c).includes(n)) { return; }
if (id_choice.has(oc) && id_choice.get(oc).includes(n)) { return; }
if (!id_choice.has(c)) { id_choice.set(c, []); }
if (!id_choice.has(oc)) { id_choice.set(oc, []); }
id_choice.set(c, id_choice.get(c).concat([n]));
id_choice.set(oc, id_choice.get(oc).concat([n]));
fourside((nb, nc) => {
if (nb.qans) { return; }
dfs_idc(nc, n);
}, c.adjborder, c.adjacent);
};
// assign cells to dots and deduce
for (let x = board.minbx + 1; x <= board.maxbx - 1; x++) {
for (let y = board.minby + 1; y <= board.maxby - 1; y++) {
if (isDot(board.getobj(x, y))) {
n++;
dotmap.set(n, board.getobj(x, y));
let clist = [];
if (x % 2 === 1 && y % 2 === 1) {
clist.push(board.getc(x, y));
}
if (x % 2 === 1 && y % 2 === 0) {
clist.push(board.getc(x, y - 1));
clist.push(board.getc(x, y + 1));
}
if (x % 2 === 0 && y % 2 === 1) {
clist.push(board.getc(x - 1, y));
clist.push(board.getc(x + 1, y));
}
if (x % 2 === 0 && y % 2 === 0) {
clist.push(board.getc(x - 1, y - 1));
clist.push(board.getc(x - 1, y + 1));
clist.push(board.getc(x + 1, y - 1));
clist.push(board.getc(x + 1, y + 1));
}
bfs_id(clist, n);
}
}
}
// assign cells to possible dots
n = 0;
for (let x = board.minbx + 1; x <= board.maxbx - 1; x++) {
for (let y = board.minby + 1; y <= board.maxby - 1; y++) {
if (isDot(board.getobj(x, y))) {
n++;
let clist = [];
if (x % 2 === 1 && y % 2 === 1) {
clist.push(board.getc(x, y));
}
if (x % 2 === 1 && y % 2 === 0) {
clist.push(board.getc(x, y - 1));
clist.push(board.getc(x, y + 1));
}
if (x % 2 === 0 && y % 2 === 1) {
clist.push(board.getc(x - 1, y));
clist.push(board.getc(x + 1, y));
}
if (x % 2 === 0 && y % 2 === 0) {
clist.push(board.getc(x - 1, y - 1));
clist.push(board.getc(x - 1, y + 1));
clist.push(board.getc(x + 1, y - 1));
clist.push(board.getc(x + 1, y + 1));
}
dfs_idc(clist[0], n);
}
}
}
// check not assigned cells
forEachCell(cell => {
if (!isDot(cell) && adjlist(cell.adjborder).filter(b => !b.isnull && !b.qans).length === 1) {
add_link(adjlist(cell.adjborder).filter(b => !b.isnull && !b.qans)[0]);
}
if (!isEmpty(cell) || id.has(cell)) { return; }
if (id_choice.has(cell) && id_choice.get(cell).length === 1) {
bfs_id([cell], id_choice.get(cell)[0]);
}
});
document.querySelector('#btncolor').click();
}
function NorinuriAssist() {
forEachCell(c => { if (c.qnum !== CQNUM.none) add_green(c); })
SizeRegion_Cell({
isShaded: isGreen,
isUnshaded: isBlack,
add_shaded: add_green,
add_unshaded: c => add_black(c, true),
});
forEachCell(cell => {
let list = adjlist(cell.adjacent);
// surrounded by green
if (!list.some(c => !c.isnull && c.qsub !== CQSUB.green)) {
add_green(cell);
}
// extend domino
if (isBlack(cell) && list.filter(c => !c.isnull && c.qsub !== CQSUB.green).length === 1) {
let ncell = list.find(c => !c.isnull && c.qsub !== CQSUB.green);
add_black(ncell);
}
// finished domino
if (isBlack(cell) && list.some(c => isBlack(c))) {
let ncell = list.find(isBlack(c));
fourside(add_green, cell.adjacent);
fourside(add_green, ncell.adjacent);
}
// not making triomino
if (list.filter(isBlack(c)).length >= 2) {
add_green(cell);
}
// · ·
// ·█ -> ·█
// ·
for (let d = 0; d < 4; d++) {
if (isBlack(cell) &&
(offset(cell, -1, 0, d).isnull || offset(cell, -1, 0, d).qsub === CQSUB.green) &&
(offset(cell, 0, -1, d).isnull || offset(cell, 0, -1, d).qsub === CQSUB.green)) {
add_green(offset(cell, 1, 1, d));
}
}
});
}
function NorinoriAssist() {
forEachCell(cell => {
let list = adjlist(cell.adjacent);
// surrounded by dot
if (!list.some(c => !c.isnull && c.qsub !== CQSUB.dot)) {
add_dot(cell);
}
// extend domino
if (isBlack(cell) && list.filter(c => !c.isnull && c.qsub !== CQSUB.dot).length === 1) {
let ncell = list.find(c => !c.isnull && c.qsub !== CQSUB.dot);
add_black(ncell);
}
// finished domino
if (isBlack(cell) && list.some(c => isBlack(c))) {
let ncell = list.find(c => isBlack(c));
fourside(add_dot, cell.adjacent);
fourside(add_dot, ncell.adjacent);
}
// not making triomino
if (list.filter(c => isBlack(c)).length >= 2) {
add_dot(cell);
}
// · ·
// ·█ -> ·█
// ·
for (let d = 0; d < 4; d++) {
if (isBlack(cell) &&
(offset(cell, -1, 0, d).isnull || offset(cell, -1, 0, d).qsub === CQSUB.green) &&
(offset(cell, 0, -1, d).isnull || offset(cell, 0, -1, d).qsub === CQSUB.green)) {
add_dot(offset(cell, 1, 1, d));
}
}
});
for (let i = 0; i < board.roommgr.components.length; i++) {
let room = board.roommgr.components[i];
let list = [];
for (let j = 0; j < room.clist.length; j++) {
list.push(room.clist[j]);
}
// finish region
if (list.filter(c => isBlack(c)).length === 2) {
list.forEach(c => add_dot(c));
}
if (list.filter(c => c.qsub !== CQSUB.dot).length === 2) {
list.forEach(c => add_black(c));
}
if (list.filter(c => isBlack(c)).length === 1) {
list.forEach(c => {
if (isBlack(c) || c.qsub === CQSUB.dot) { return; }
if (!adjlist(c.adjacent).some(nc => !nc.isnull &&
(c.room !== nc.room && nc.qsub !== CQSUB.dot || c.room === nc.room && isBlack(nc)))) {
add_dot(c);
}
});
}
}
}
function AllorNothingAssist() {
let add_color = function (c, color) {
if (c.isnull || c.qsub !== CQSUB.none) { return; }
if (step && flg) { return; }
flg = true;
c.setQsub(color);
c.draw();
};
let add_gray = function (c) { add_color(c, CQSUB.gray); };
let add_yellow = function (c) { add_color(c, CQSUB.yellow); };
let add_border_cross = function (b) { if (b.ques) { add_cross(b); } };
SingleLoopInCell({
isPassable: c => c.qsub !== CQSUB.gray,
isPass: c => c.qsub === CQSUB.yellow,
add_notpass: add_gray,
add_pass: add_yellow,
});
for (let i = 0; i < board.roommgr.components.length; i++) {
let room = board.roommgr.components[i];
let list = [];
for (let j = 0; j < room.clist.length; j++) {
list.push(room.clist[j]);
}
let nbcnt = function (c) {
let templist = adjlist(c.adjacent);
return templist.filter(nc => !nc.isnull && c.room === nc.room).length;
};
let list2 = list.filter(c => nbcnt(c) !== 1);
let listodd = list.filter(c => (c.bx + c.by) % 4 === 2);
let listeven = list.filter(c => (c.bx + c.by) % 4 === 0);
if (list.length - list2.length === 2) {
list2.forEach(c => fourside(add_border_cross, c.adjborder));
}
if (listeven.length === listodd.length + 1) {
listodd.forEach(c => fourside(add_border_cross, c.adjborder));
}
if (listodd.length === listeven.length + 1) {
listeven.forEach(c => fourside(add_border_cross, c.adjborder));
}
if (list.some(c => c.lcnt > 0 || c.qsub === CQSUB.yellow)) {
list.forEach(c => add_yellow(c));
let templist = list.filter(c => nbcnt(c) === 1);
templist.forEach(c => fourside((nb, nc) => {
if (!nc.isnull && room === nc.room) {
add_line(nb);
}
}, c.adjborder, c.adjacent));
}
if (list.some(c => c.qsub === CQSUB.gray) || list.length - list2.length > 2 ||
Math.abs(listodd.length - listeven.length) > 1) {
list.forEach(c => add_gray(c));
list.forEach(c => fourside(add_cross, c.adjborder));
list.forEach(c => fourside(add_yellow, c.adjacent));
}
}
}
function AqreAssist() {
BlackConnected();
forEachCell(cell => {
let fn = function (c1, c2, c3) {
if (c1.isnull || c2.isnull || c3.isnull) { return; }
if (isBlack(c1) && isBlack(c2) && isBlack(c3)) {
add_green(cell);
}
if (isGreen(c1) && isGreen(c2) && isGreen(c3)) {
add_black(cell);
}
};
if (cell.qsub === CQSUB.none && cell.qans === CQANS.none) {
fn(offset(cell, -3, 0), offset(cell, -2, 0), offset(cell, -1, 0),);
fn(offset(cell, -2, 0), offset(cell, -1, 0), offset(cell, 1, 0),);
fn(offset(cell, -1, 0), offset(cell, 1, 0), offset(cell, 2, 0),);
fn(offset(cell, 1, 0), offset(cell, 2, 0), offset(cell, 3, 0),);
fn(offset(cell, 0, -3), offset(cell, 0, -2), offset(cell, 0, -1),);
fn(offset(cell, 0, -2), offset(cell, 0, -1), offset(cell, 0, 1),);
fn(offset(cell, 0, -1), offset(cell, 0, 1), offset(cell, 0, 2),);
fn(offset(cell, 0, 1), offset(cell, 0, 2), offset(cell, 0, 3),);
}
});
for (let i = 0; i < board.roommgr.components.length; i++) {
let room = board.roommgr.components[i];
let qnum = room.top.qnum;
if (qnum === CQNUM.none || qnum === CQNUM.quesmark) { continue; }
let list = [];
for (let j = 0; j < room.clist.length; j++) {
list.push(room.clist[j]);
}
if (list.filter(c => isBlack(c)).length === qnum) {
list.forEach(c => add_green(c));
}
if (qnum - list.filter(c => isBlack(c)).length ===
list.filter(c => c.qans === CQANS.none && c.qsub === CQSUB.none).length) {
list.forEach(c => add_black(c));
}
}
}
function KurodokoAssist() {
GreenConnected();
BlackNotAdjacent();
SightNumber({
isShaded: isGreen,
isUnshaded: isBlack,
add_shaded: add_green,
add_unshaded: add_black,
});
forEachCell(cell => {
if (cell.qnum !== CQNUM.none) {
add_green(cell);
}
});
}
function HitoriAssist() {
GreenConnected();
BlackNotAdjacent();
let uniq = new Map();
forEachCell(cell => {
uniq.set(cell, true);
});
let fn = function (a) {
let vis = new Map();
for (let cell of a) {
if (cell.qnum === CQNUM.none) continue;
if (isGreen(cell)) vis.set(cell.qnum, cell);
}
for (let cell of a) {
if (cell.qnum === CQNUM.none) continue;
if (vis.has(cell.qnum)) add_black(cell);
}
let cnt = new Map();
for (let cell of a) {
if (cell.qnum === CQNUM.none || isBlack(cell)) continue;
let c = cnt.has(cell.qnum) ? cnt.get(cell.qnum) : 0;
c++;
cnt.set(cell.qnum, c);
}
for (let cell of a) {
if (cell.qnum === CQNUM.none || isBlack(cell)) continue;
if (cnt.get(cell.qnum) >= 2) uniq.set(cell, false);
}
// aba
for (let i = 0; i < a.length - 2; i++) {
if (a[i].qnum === CQNUM.none || a[i].qnum !== a[i + 2].qnum) continue;
add_green(a[i + 1]);
}
// a..aa
for (let i = 0; i < a.length - 1; i++) {
if (a[i].qnum === CQNUM.none || a[i].qnum !== a[i + 1].qnum) continue;
for (let j = 0; j < a.length; j++) {
if (j !== i && j !== i + 1 && a[j].qnum === a[i].qnum) add_black(a[j]);
}
}
};
for (let i = 0; i < board.rows; i++) {
let a = [];
for (let j = 0; j < board.cols; j++) {
a.push(board.getc(2 * j + 1, 2 * i + 1));
}
fn(a);
}
for (let j = 0; j < board.cols; j++) {
let a = [];
for (let i = 0; i < board.rows; i++) {
a.push(board.getc(2 * j + 1, 2 * i + 1));
}
fn(a);
}
forEachCell(cell => {
if (uniq.get(cell)) add_green(cell);
});
}
function CanalViewAssist() {
CellConnected({
isShaded: isBlack,
isUnshaded: c => c.qsub === CQSUB.dot || c.qnum !== CQNUM.none,
add_shaded: add_black,
add_unshaded: add_dot,
});
SightNumber({
isShaded: isBlack,
isUnshaded: c => c.qsub === CQSUB.dot || c.qnum !== CQNUM.none,
add_shaded: add_black,
add_unshaded: add_dot,
});
No2x2Cell({
isShaded: isBlack,
add_unshaded: add_dot,
});
}
function CaveAssist() {
GreenConnected();
CellConnected({
isShaded: isBlack,
isUnshaded: isGreen,
add_shaded: add_black,
add_unshaded: add_green,
OutsideAsShaded: true,
});
SightNumber({
isShaded: isGreen,
isUnshaded: isBlack,
add_shaded: add_green,
add_unshaded: add_black,
});
NoCheckerCell({
isShaded: isBlack,
isUnshaded: isGreen,
add_shaded: add_black,
add_unshaded: add_green,
});
forEachCell(cell => {
if (cell.qnum !== CQNUM.none) {
add_green(cell);
}
});
}
function TapaAssist() {
No2x2Cell({
isShaded: isBlack,
add_unshaded: add_dot,
});
CellConnected({
isShaded: isBlack,
isUnshaded: c => c.qsub === CQSUB.dot || c.qnums.length > 0,
add_shaded: add_black,
add_unshaded: add_dot,
});
let check = function (qnums, s) {
if (s === "11111111") { return qnums.length === 1 && qnums[0] === 8 || qnums[0] === CQNUM.quesmark; }
while (s[0] !== '0') {
s = s.slice(1) + s[0];
}
s = s.split('0').filter(s => s.length > 0).map(s => s.length);
if (s.length === 0) { s = [0]; }
if (s.length !== qnums.length) { return false; }
for (let i = 0; i < qnums.length; i++) {
if (!s.includes(qnums[i])) { continue; }
s.splice(s.indexOf(qnums[i]), 1);
}
return s.length === qnums.filter(n => n === CQNUM.quesmark).length;
};
let isEmpty = function (c) {
return !c.isnull && c.qans === CQANS.none && c.qsub === CQSUB.none && c.qnums.length === 0;
};
forEachCell(cell => {
if (cell.qnums.length === 0) { return; }
let list = [offset(cell, -1, -1), offset(cell, 0, -1), offset(cell, 1, -1), offset(cell, 1, 0),
offset(cell, 1, 1), offset(cell, 0, 1), offset(cell, -1, 1), offset(cell, -1, 0)];
let mask = parseInt(list.map(c => isEmpty(c) ? "1" : "0").join(""), 2);
let blk = parseInt(list.map(c => isBlack(c) ? "1" : "0").join(""), 2);
let setb = 0b11111111, setd = 0b00000000, n = 0;
for (let j = mask; j >= 0; j--) {
j &= mask;
if (check(cell.qnums, (j | blk).toString(2).padStart(8, '0'))) {
setb &= (j | blk);
setd |= (j | blk);
n++;
}
}
if (n === 0) {
add_black(cell);
return;
}
setb = setb.toString(2).padStart(8, '0');
setd = setd.toString(2).padStart(8, '0');
for (let j = 0; j < 8; j++) {
if (setb[j] === '1') {
add_black(list[j], true);
}
if (setd[j] === '0') {
add_dot(list[j]);
}
}
});
}
function LightandShadowAssist() {
let add_black = function (c) {
if (c.isnull || c.qans !== CQANS.none) { return; }
if (step && flg) { return; }
flg = true;
c.setQans(CQANS.black);
c.draw();
};
let add_white = function (c) {
if (c.isnull || c.qans !== CQANS.none) { return; }
if (step && flg) { return; }
flg = true;
c.setQans(CQANS.white);
c.draw();
};
SizeRegion_Cell({
isShaded: isBlack,
isUnshaded: c => c.qans === CQANS.white,
add_shaded: add_black,
add_unshaded: add_white,
NoUnshadedNum: false,
});
SizeRegion_Cell({
isShaded: c => c.qans === CQANS.white,
isUnshaded: isBlack,
add_shaded: add_white,
add_unshaded: add_black,
NoUnshadedNum: false,
});
forEachCell(cell => {
if (cell.qnum !== CQNUM.none && cell.ques === 1) {
add_black(cell);
}
if (cell.qnum !== CQNUM.none && cell.ques === 0) {
add_white(cell);
}
});
}
function SlalomAssist() {
SingleLoopInCell({
isPassable: c => c.ques !== 1,
isPass: c => c.bx === board.startpos.bx && c.by === board.startpos.by,
});
forEachCell(cell => {
if (cell.ques === 1) {
fourside(add_cross, cell.adjborder);
}
if (cell.ques === CQUES.vgate && (cell.adjacent.top.isnull || cell.adjacent.top.ques !== CQUES.vgate)) {
let list = [];
let pcell = cell;
while (!pcell.isnull && pcell.ques === CQUES.vgate) {
add_cross(pcell.adjborder.top);
add_cross(pcell.adjborder.bottom);
list.push(pcell);
pcell = pcell.adjacent.bottom;
}
if (list.filter(c => c.adjborder.left.line).length === 1) {
list.forEach(c => add_cross(c.adjborder.left));
}
if (list.filter(c => c.adjborder.left.qsub !== BQSUB.cross).length === 1) {
list.forEach(c => add_line(c.adjborder.left));
}
}
if (cell.ques === CQUES.hgate && (cell.adjacent.left.isnull || cell.adjacent.left.ques !== CQUES.hgate)) {
let list = [];
let pcell = cell;
while (!pcell.isnull && pcell.ques === CQUES.hgate) {
add_cross(pcell.adjborder.left);
add_cross(pcell.adjborder.right);
list.push(pcell);
pcell = pcell.adjacent.right;
}
if (list.filter(c => c.adjborder.top.line).length === 1) {
list.forEach(c => add_cross(c.adjborder.top));
}
if (list.filter(c => c.adjborder.top.qsub !== BQSUB.cross).length === 1) {
list.forEach(c => add_line(c.adjborder.top));
}
}
});
}
function StarbattleAssist() {
let add_cir = function (b) {
if (b === undefined || b.isnull || b.line || b.qsub !== BQSUB.none) { return; }
if (step && flg) { return; }
b.setQsub(1);
b.draw();
flg |= b.qsub === BQSUB.cross;
};
let starcount = board.starCount.count;
let add_star = add_black;
for (let i = 0; i < board.roommgr.components.length; i++) {
let room = board.roommgr.components[i];
let cellList = [];
for (let j = 0; j < room.clist.length; j++) {
cellList.push(room.clist[j]);
}
// finish room
if (cellList.filter(c => c.qans === CQANS.star).length === starcount) {
cellList.forEach(c => add_dot(c));
}
if (cellList.filter(c => c.qsub !== CQSUB.dot).length === starcount) {
cellList.forEach(c => add_star(c));
}
}
for (let i = 0; i < board.rows; i++) {
let hcellList = [];
let vcellList = [];
for (let j = 0; j < board.cols; j++) {
hcellList.push(board.getc(2 * i + 1, 2 * j + 1));
vcellList.push(board.getc(2 * j + 1, 2 * i + 1));
}
// finish row/col
if (hcellList.filter(c => c.qans === CQANS.star).length === starcount) {
hcellList.forEach(c => add_dot(c));
}
if (hcellList.filter(c => c.qsub !== CQSUB.dot).length === starcount) {
hcellList.forEach(c => add_star(c));
}
if (vcellList.filter(c => c.qans === CQANS.star).length === starcount) {
vcellList.forEach(c => add_dot(c));
}
if (vcellList.filter(c => c.qsub !== CQSUB.dot).length === starcount) {
vcellList.forEach(c => add_star(c));
}
}
forEachCell(cell => {
if (cell.qans === CQANS.star) {
for (let dx = -1; dx <= 1; dx++) {
for (let dy = -1; dy <= 1; dy++) {
add_dot(offset(cell, dx, dy));
}
}
}
});
for (let i = 0; i < board.cross.length; i++) {
let cross = board.cross[i];
if (cross.qsub !== 1) { continue; }
for (let d = 0; d < 4; d++) {
if (offset(cross, .5, .5, d).qsub === CQSUB.dot && offset(cross, -.5, .5, d).qsub === CQSUB.dot) {
add_cir(offset(cross, 0, -.5, d));
if (offset(cross, 0, -.5, d).qsub === 1) {
cross.setQsub(0);
cross.draw();
}
}
}
}
for (let i = 0; i < board.border.length; i++) {
let border = board.border[i];
if (border.qsub !== 1) { continue; }
if (border.isvert) {
add_dot(offset(border, -.5, -1));
add_dot(offset(border, +.5, -1));
add_dot(offset(border, -.5, +1));
add_dot(offset(border, +.5, +1));
} else {
add_dot(offset(border, -1, -.5));
add_dot(offset(border, -1, +.5));
add_dot(offset(border, +1, -.5));
add_dot(offset(border, +1, +.5));
}
for (let j = 0; j <= 1; j++) {
if (border.sidecell[j].qsub === CQSUB.dot) {
add_star(border.sidecell[1 - j]);
}
}
}
}
function CastleWallAssist() {
SingleLoopInCell({
isPassable: c => c.qnum === CQNUM.none,
});
// add invisible qsub at cross
forEachCell(cell => {
if (cell.qnum !== CQNUM.none) {
// add qsub around b/w clue
if (cell.ques === CQUES.black || cell.ques === CQUES.white) {
for (let d = 0; d < 4; d++) {
add_inout(offset(cell, .5, .5, d), (cell.ques === CQUES.black ? CRQSUB.out : CRQSUB.in));
}
}
// finish clue
if (cell.qnum !== CQNUM.quesmark) {
let d = qdirRemap(cell.qdir);
let borderlist = [];
let pcell = dir(cell.adjacent, d);
let qnum = cell.qnum;
while (!pcell.isnull && (pcell.qnum < 0 || pcell.qdir !== cell.qdir)) {
let b = dir(pcell.adjborder, d);
if (!b.isnull && b.sidecell[0].qnum === CQNUM.none && b.sidecell[1].qnum === CQNUM.none) {
borderlist.push(b);
}
pcell = dir(pcell.adjacent, d);
}
if (!pcell.isnull) {
qnum -= pcell.qnum;
}
if (borderlist.filter(b => b.line).length === qnum) {
borderlist.forEach(b => add_cross(b));
}
if (borderlist.filter(b => b.qsub === BQSUB.none).length === qnum) {
borderlist.forEach(b => add_line(b));
}
}
}
});
}
function NurimisakiAssist() {
let isEmpty = c => !c.isnull && c.qnum === CQNUM.none && c.qsub === CQSUB.none && c.qans === CQANS.none;
let isDot = c => !c.isnull && c.qsub === CQSUB.dot && c.qnum === CQNUM.none;
let isDotEmpty = c => isEmpty(c) || isDot(c);
let isBorderBlack = c => c.isnull || isBlack(c);
let isConnectBlack = c => isBorderBlack(c) || c.qnum !== CQNUM.none;
let isCircle = c => !c.isnull && c.qnum !== CQNUM.none;
let isDotCircle = c => isDot(c) || isCircle(c);
forEachCell(cell => {
let blackcnt = 0;
let dotcnt = 0;
fourside(c => {
if (isBorderBlack(c)) { blackcnt++; }
if (isDot(c)) { dotcnt++; }
}, cell.adjacent);
// no clue pattern
// add dot
if (isEmpty(cell)) {
for (let d = 0; d < 4; d++) {
// cannot place black with 2x2 black rule
if (isEmpty(offset(cell, 0, -1, d)) && isBlack(offset(cell, 1, 0, d)) && isBlack(offset(cell, 1, -1, d)) &&
(isBorderBlack(offset(cell, 0, -2, d)) || isBorderBlack(offset(cell, -1, -1, d)))) {
add_dot(cell);
}
else if (isEmpty(offset(cell, 0, -1, d)) && isBlack(offset(cell, -1, 0, d)) && isBlack(offset(cell, -1, -1, d)) &&
(isBorderBlack(offset(cell, 0, -2, d)) || isBorderBlack(offset(cell, 1, -1, d)))) {
add_dot(cell);
}
else if (isEmpty(offset(cell, 1, 0, d)) && isEmpty(offset(cell, 0, -1, d)) && isBlack(offset(cell, 1, -1, d)) &&
(isBorderBlack(offset(cell, 2, 0, d)) || isBorderBlack(offset(cell, 1, 1, d))) &&
(isBorderBlack(offset(cell, 0, -2, d)) || isBorderBlack(offset(cell, -1, -1, d)))) {
add_dot(cell);
}
else if (isEmpty(offset(cell, 0, -1, d)) && isEmpty(offset(cell, 1, -1, d)) && isBlack(offset(cell, 1, 0, d)) &&
isBorderBlack(offset(cell, -1, -1, d)) && isBorderBlack(offset(cell, 0, -2, d)) && offset(cell, 1, -2, d).isnull) {
add_dot(cell);
}
else if (isEmpty(offset(cell, 0, -1, d)) && isEmpty(offset(cell, -1, -1, d)) && isBlack(offset(cell, -1, 0, d)) &&
isBorderBlack(offset(cell, 1, -1, d)) && isBorderBlack(offset(cell, 0, -2, d)) && offset(cell, -1, -2, d).isnull) {
add_dot(cell);
}
// cannot place black with 2x2 dot rule
else if (isBlack(offset(cell, 1, 0, d)) && isBlack(offset(cell, 1, 1, d)) && isDot(offset(cell, -1, 2, d)) &&
isEmpty(offset(cell, 0, 1, d)) && isDotEmpty(offset(cell, -1, 1, d)) && isDotEmpty(offset(cell, 0, 2, d))) {
add_dot(cell);
}
else if (isBlack(offset(cell, -1, 0, d)) && isBlack(offset(cell, -1, 1, d)) && isDot(offset(cell, 1, 2, d)) &&
isEmpty(offset(cell, 0, 1, d)) && isDotEmpty(offset(cell, 1, 1, d)) && isDotEmpty(offset(cell, 0, 2, d))) {
add_dot(cell);
}
// cannot place black with 2x2 black rule and 2x2 dot rule
else if (isDotEmpty(offset(cell, 0, -1, d)) && isEmpty(offset(cell, 0, -2, d)) &&
isBlack(offset(cell, 1, -1, d)) && isBlack(offset(cell, 1, -2, d)) && isBorderBlack(offset(cell, 0, -3, d))) {
add_dot(cell);
}
else if (isDotEmpty(offset(cell, 0, -1, d)) && isEmpty(offset(cell, 0, -2, d)) &&
isBlack(offset(cell, -1, -1, d)) && isBlack(offset(cell, -1, -2, d)) && isBorderBlack(offset(cell, 0, -3, d))) {
add_dot(cell);
}
else if (isDotEmpty(offset(cell, -1, 0, d)) && isEmpty(offset(cell, -1, -1, d)) &&
isBlack(offset(cell, 0, -1, d)) && isBorderBlack(offset(cell, -1, 1, d)) && isBorderBlack(offset(cell, -1, -2, d))) {
add_dot(cell);
}
else if (isDotEmpty(offset(cell, 1, 0, d)) && isEmpty(offset(cell, 1, -1, d)) &&
isBlack(offset(cell, 0, -1, d)) && isBorderBlack(offset(cell, 1, 1, d)) && isBorderBlack(offset(cell, 1, -2, d))) {
add_dot(cell);
}
// cannot place black with 2x3 border pattern
else if (isEmpty(offset(cell, 0, -1, d)) && isEmpty(offset(cell, 1, -1, d)) && isEmpty(offset(cell, 2, -1, d)) &&
isDotEmpty(offset(cell, 1, 0, d)) && isDotEmpty(offset(cell, 2, 0, d)) &&
isBorderBlack(offset(cell, -1, -1, d)) && isBorderBlack(offset(cell, 3, -1, d)) &&
isBorderBlack(offset(cell, 3, 0, d)) && offset(cell, 0, -2, d).isnull) {
add_dot(cell);
}
else if (isEmpty(offset(cell, 0, -1, d)) && isEmpty(offset(cell, -1, -1, d)) && isEmpty(offset(cell, -2, -1, d)) &&
isDotEmpty(offset(cell, -1, 0, d)) && isDotEmpty(offset(cell, -2, 0, d)) &&
isBorderBlack(offset(cell, 1, -1, d)) && isBorderBlack(offset(cell, -3, -1, d)) &&
isBorderBlack(offset(cell, -3, 0, d)) && offset(cell, 0, -2, d).isnull) {
add_dot(cell);
}
}
}
if (isDot(cell)) {
// dot cannot be deadend
if (blackcnt === 2) {
fourside(add_dot, cell.adjacent);
}
for (let d = 0; d < 4; d++) {
// avoid 2x2 dot
if (isBorderBlack(offset(cell, 0, -1, d)) && isEmpty(offset(cell, 1, 0, d)) && isEmpty(offset(cell, 0, 1, d)) &&
isEmpty(offset(cell, -1, 0, d)) && isDot(offset(cell, 1, 1, d))) {
add_dot(offset(cell, -1, 0, d));
}
else if (isBorderBlack(offset(cell, 0, -1, d)) && isEmpty(offset(cell, -1, 0, d)) && isEmpty(offset(cell, 0, 1, d)) &&
isEmpty(offset(cell, 1, 0, d)) && isDot(offset(cell, -1, 1, d))) {
add_dot(offset(cell, 1, 0, d));
}
// dot cannot be deadend with 2x2 dot rule
else if (isBorderBlack(offset(cell, 0, -1, d)) && isEmpty(offset(cell, 1, 0, d)) && isBorderBlack(offset(cell, 2, 0, d)) &&
isBorderBlack(offset(cell, 1, -1, d)) && isEmpty(offset(cell, -1, 0, d))) {
add_dot(offset(cell, -1, 0, d));
}
else if (isBorderBlack(offset(cell, 0, -1, d)) && isEmpty(offset(cell, -1, 0, d)) && isBorderBlack(offset(cell, -2, 0, d)) &&
isBorderBlack(offset(cell, -1, -1, d)) && isEmpty(offset(cell, 1, 0, d))) {
add_dot(offset(cell, 1, 0, d));
}
}
}
// add black
if (isEmpty(cell)) {
// black deadend
if (blackcnt >= 3) {
add_black(cell);
}
for (let d = 0; d < 4; d++) {
// cannot dot with 2x2 dot rule
if (isBorderBlack(offset(cell, -1, 0, d)) && isBorderBlack(offset(cell, 2, 0, d)) && isEmpty(offset(cell, 1, 0, d)) &&
offset(cell, 0, -1, d).isnull && offset(cell, 1, -1, d).isnull) {
add_black(cell);
}
else if (isBorderBlack(offset(cell, 1, 0, d)) && isBorderBlack(offset(cell, 0, -1, d)) && isDot(offset(cell, -1, 1, d)) &&
isDotEmpty(offset(cell, -1, 0, d)) && isDotEmpty(offset(cell, 0, 1, d))) {
add_black(cell);
}
}
}
// clue pattern
// any circle clue
if (cell.qnum !== CQNUM.none) {
// clue deadend check
if (blackcnt === 3) {
fourside(add_dot, cell.adjacent);
}
else if (dotcnt === 1) {
fourside(add_black, cell.adjacent);
}
for (let d = 0; d < 4; d++) {
// avoid 2x2 black pattern
if (isEmpty(offset(cell, 0, -1, d)) && isEmpty(offset(cell, 1, 0, d)) && isEmpty(offset(cell, 1, -1, d)) &&
isBlack(offset(cell, 0, -2, d)) && isBlack(offset(cell, 1, -2, d))) {
add_black(offset(cell, 0, 1, d));
add_black(offset(cell, -1, 0, d));
}
else if (isEmpty(offset(cell, 0, -1, d)) && isEmpty(offset(cell, 1, 0, d)) && isEmpty(offset(cell, 1, -1, d)) &&
isBlack(offset(cell, 2, 0, d)) && isBlack(offset(cell, 2, -1, d))) {
add_black(offset(cell, 0, 1, d));
add_black(offset(cell, -1, 0, d));
}
else if (isEmpty(offset(cell, 0, -1, d)) && isEmpty(offset(cell, 1, 0, d)) && isEmpty(offset(cell, 1, -1, d)) &&
isEmpty(offset(cell, 0, -2, d)) && isBlack(offset(cell, 1, -2, d)) &&
(isBorderBlack(offset(cell, 0, -3, d)) || isBorderBlack(offset(cell, -1, -2, d)))) {
add_black(offset(cell, 0, 1, d));
add_black(offset(cell, -1, 0, d));
}
else if (isEmpty(offset(cell, 0, -1, d)) && isEmpty(offset(cell, 1, 0, d)) && isEmpty(offset(cell, 1, -1, d)) &&
isEmpty(offset(cell, 2, 0, d)) && isBlack(offset(cell, 2, -1, d)) &&
(isBorderBlack(offset(cell, 3, 0, d)) || isBorderBlack(offset(cell, 2, 1, d)))) {
add_black(offset(cell, 0, 1, d));
add_black(offset(cell, -1, 0, d));
}
// avoid 2x2 black and 2x2 dot apttern
else if (isEmpty(offset(cell, 0, -1, d)) && isEmpty(offset(cell, 1, 0, d)) && isDotEmpty(offset(cell, 1, -1, d)) &&
isEmpty(offset(cell, 1, -2, d)) && isBlack(offset(cell, 0, -2, d)) && isBorderBlack(offset(cell, 1, -3, d))) {
add_black(offset(cell, 0, 1, d));
add_black(offset(cell, -1, 0, d));
}
else if (isEmpty(offset(cell, 0, -1, d)) && isEmpty(offset(cell, 1, 0, d)) && isDotEmpty(offset(cell, 1, -1, d)) &&
isEmpty(offset(cell, 2, -1, d)) && isBlack(offset(cell, 2, 0, d)) && isBorderBlack(offset(cell, 3, -1, d))) {
add_black(offset(cell, 0, 1, d));
add_black(offset(cell, -1, 0, d));
}
// avoid border 2x2 black
else if (isEmpty(offset(cell, 0, -1, d)) && isEmpty(offset(cell, 1, 0, d)) && isEmpty(offset(cell, 1, -1, d)) &&
isDotEmpty(offset(cell, 2, 0, d)) && isEmpty(offset(cell, 2, -1, d)) && isBorderBlack(offset(cell, 3, 0, d)) &&
isBorderBlack(offset(cell, 3, -1, d)) && offset(cell, 0, -2, d).isnull) {
add_black(offset(cell, 0, 1, d));
add_black(offset(cell, -1, 0, d));
}
else if (isEmpty(offset(cell, 0, -1, d)) && isEmpty(offset(cell, 1, 0, d)) && isEmpty(offset(cell, 1, -1, d)) &&
isDotEmpty(offset(cell, 0, -2, d)) && isEmpty(offset(cell, 1, -2, d)) && isBorderBlack(offset(cell, 0, -3, d)) &&
isBorderBlack(offset(cell, 1, -3, d)) && offset(cell, 2, 0, d).isnull) {
add_black(offset(cell, 0, 1, d));
add_black(offset(cell, -1, 0, d));
}
// avoid border 2x3 pattern
else if (isEmpty(offset(cell, 0, -1, d)) && isEmpty(offset(cell, 1, 0, d)) && isEmpty(offset(cell, 1, -1, d)) &&
isDotEmpty(offset(cell, 2, 0, d)) && isDotEmpty(offset(cell, 2, -1, d)) && isDotEmpty(offset(cell, 3, 0, d)) &&
isEmpty(offset(cell, 3, -1, d)) && isBorderBlack(offset(cell, 4, 0, d)) &&
isBorderBlack(offset(cell, 4, -1, d)) && offset(cell, 0, -2, d).isnull) {
add_black(offset(cell, 0, 1, d));
add_black(offset(cell, -1, 0, d));
}
else if (isEmpty(offset(cell, 0, -1, d)) && isEmpty(offset(cell, 1, 0, d)) && isEmpty(offset(cell, 1, -1, d)) &&
isDotEmpty(offset(cell, 0, -2, d)) && isDotEmpty(offset(cell, 1, -2, d)) && isDotEmpty(offset(cell, 0, -3, d)) &&
isEmpty(offset(cell, 1, -3, d)) && isBorderBlack(offset(cell, 0, -4, d)) &&
isBorderBlack(offset(cell, 1, -4, d)) && offset(cell, 2, 0, d).isnull) {
add_black(offset(cell, 0, 1, d));
add_black(offset(cell, -1, 0, d));
}
}
}
if (isEmpty(cell)) {
for (let d = 0; d < 4; d++) {
// cannot place black with 2x2 white
if (isBlack(offset(cell, 1, 0, d)) && isBlack(offset(cell, 1, 1, d)) && isCircle(offset(cell, -1, 2, d)) &&
isEmpty(offset(cell, 0, 1, d)) && isEmpty(offset(cell, -1, 1, d)) && isEmpty(offset(cell, 0, 2, d))) {
add_dot(cell);
}
else if (isBlack(offset(cell, -1, 0, d)) && isBlack(offset(cell, -1, 1, d)) && isCircle(offset(cell, 1, 2, d)) &&
isEmpty(offset(cell, 0, 1, d)) && isEmpty(offset(cell, 1, 1, d)) && isEmpty(offset(cell, 0, 2, d))) {
add_dot(cell);
}
// cannot place dot with 2x2 white
else if (isBorderBlack(offset(cell, 1, 0, d)) && isBorderBlack(offset(cell, 0, -1, d)) && isCircle(offset(cell, -1, 1, d)) &&
isEmpty(offset(cell, -1, 0, d)) && isEmpty(offset(cell, 0, 1, d))) {
add_black(cell);
}
}
}
if (isDot(cell)) {
for (let d = 0; d < 4; d++) {
// avoid 2x2 white
if (isBorderBlack(offset(cell, 0, -1, d)) && isEmpty(offset(cell, 1, 0, d)) && isEmpty(offset(cell, 0, 1, d)) &&
isDotEmpty(offset(cell, -1, 0, d)) && isCircle(offset(cell, 1, 1, d))) {
add_dot(offset(cell, -1, 0, d));
add_black(offset(cell, 2, 1, d));
add_black(offset(cell, 1, 2, d));
}
else if (isBorderBlack(offset(cell, 0, -1, d)) && isEmpty(offset(cell, -1, 0, d)) && isEmpty(offset(cell, 0, 1, d)) &&
isDotEmpty(offset(cell, 1, 0, d)) && isCircle(offset(cell, -1, 1, d))) {
add_dot(offset(cell, 1, 0, d));
add_black(offset(cell, -2, 1, d));
add_black(offset(cell, -1, 2, d));
}
}
}
// circle clue with number
if (cell.qnum >= 2) {
for (let d = 0; d < 4; d++) {
if (isEmpty(offset(cell, 0, -1, d))) {
// avoid eyesight too long
if (isDotCircle(offset(cell, 0, -cell.qnum, d))) {
add_black(offset(cell, 0, -1, d));
}
// situation for clue at the end
else if (isCircle(offset(cell, 0, -cell.qnum + 1, d)) &&
offset(cell, 0, -cell.qnum + 1, d).qnum !== CQNUM.circle && offset(cell, 0, -cell.qnum + 1, d).qnum !== cell.qnum) {
add_black(offset(cell, 0, -1, d));
}
}
if (isEmpty(offset(cell, 0, -1, d))) {
for (let j = 2; j < cell.qnum; j++) {
// eyesight not enough long
if (j !== cell.qnum - 1 && isConnectBlack(offset(cell, 0, -j, d))) {
add_black(offset(cell, 0, -1, d));
break;
}
if (isBorderBlack(offset(cell, 0, -j, d))) {
add_black(offset(cell, 0, -1, d));
break;
}
// avoid 2x2 dot
if (isDot(offset(cell, 1, -j + 1, d)) && isDot(offset(cell, 1, -j, d))) {
add_black(offset(cell, 0, -1, d));
break;
}
if (isDot(offset(cell, -1, -j + 1, d)) && isDot(offset(cell, -1, -j, d))) {
add_black(offset(cell, 0, -1, d));
break;
}
}
}
// extend eyesight
if (isDot(offset(cell, 0, -1, d))) {
for (let j = 2; j < cell.qnum; j++) {
add_dot(offset(cell, 0, -j, d));
}
add_black(offset(cell, 0, -cell.qnum, d));
}
}
}
});
// 2x2 rules
No2x2Cell({
isShaded: isBlack,
add_unshaded: add_dot,
});
No2x2Cell({
isShaded: c => c.qsub === CQSUB.dot,
add_unshaded: add_black,
});
CellConnected({
isShaded: isDotCircle,
isUnshaded: isBlack,
add_shaded: add_dot,
add_unshaded: add_black,
});
CellConnected({
isShaded: isDot,
isUnshaded: isConnectBlack,
add_shaded: add_dot,
add_unshaded: add_black,
});
}
function ChocoBananaAssist() {
SizeRegion_Cell({
isShaded: isBlack,
isUnshaded: isGreen,
add_shaded: add_black,
add_unshaded: add_green,
OneNumPerRegion: false,
NoUnshadedNum: false,
});
SizeRegion_Cell({
isShaded: isGreen,
isUnshaded: isBlack,
add_shaded: add_green,
add_unshaded: add_black,
OneNumPerRegion: false,
NoUnshadedNum: false,
});
RectRegion_Cell({
isShaded: isBlack,
isUnshaded: isGreen,
add_shaded: add_black,
add_unshaded: add_green,
});
forEachCell(cell => {
if (cell.qnum === 1 || cell.qnum === 2) {
add_black(cell);
}
// non-rect
if (isGreen(cell)) {
let templist = [offset(cell, 1, 0), offset(cell, 0, 1), offset(cell, -1, 0), offset(cell, 0, -1)];
templist = templist.filter(c => !c.isnull && c.qans !== CQANS.black);
if (templist.length === 1) {
let ncell = templist[0];
add_green(ncell);
let templist2 = [offset(ncell, 1, 0), offset(ncell, 0, 1), offset(ncell, -1, 0), offset(ncell, 0, -1)];
templist2 = templist2.filter(c => !c.isnull && c.qans !== CQANS.black && c !== cell);
if (templist2.length === 1) {
add_green(templist2[0]);
}
}
}
});
}
function CreekAssist() {
GreenConnected();
let dotcnt = 0;
forEachCell(cell => {
dotcnt += cell.qsub === CQSUB.dot;
});
for (let i = 0; i < board.cross.length; i++) {
let cross = board.cross[i];
let list = [board.getc(cross.bx - 1, cross.by - 1), board.getc(cross.bx - 1, cross.by + 1),
board.getc(cross.bx + 1, cross.by - 1), board.getc(cross.bx + 1, cross.by + 1)];
list = list.filter(c => !c.isnull);
if (cross.qnum >= 0) {
if (list.filter(c => isBlack(c)).length === cross.qnum) {
list.forEach(c => add_dot(c));
}
if (list.filter(c => c.qsub !== CQSUB.dot).length === cross.qnum) {
list.forEach(c => add_black(c));
}
}
for (let d = 0; d < 4; d++) {
// + + + + + + + +
// · █
// + 1 3 + -> + 1 3 +
// · █
// + + + + + + + +
if (cross.qnum === 1 && offset(cross, 1, 0, d).qnum === 3) {
add_dot(offset(cross, -.5, -.5, d));
add_dot(offset(cross, -.5, +.5, d));
add_black(offset(cross, 1.5, -.5, d));
add_black(offset(cross, 1.5, +.5, d));
}
// + + + + + + + +
//
// + 3 + + + 3 + +
// -> █
// + + 3 + + + 3 +
//
// + + + + + + + +
if (cross.qnum === 3 && offset(cross, 1, 1, d).qnum === 3 && dotcnt > 0) {
add_black(offset(cross, .5, .5, d));
}
}
}
}
function SlantAssist() {
let add_slash = function (c, qans) {
if (c === undefined || c.isnull || c.qans !== CQANS.none) { return; }
if (step && flg) { return; }
flg = true;
c.setQans(qans % 2 === 0 ? CQANS.lslash : CQANS.rslash);
c.draw();
};
let isNotSide = function (c) {
return c.bx > board.minbx && c.bx < board.maxbx && c.by > board.minby && c.by < board.maxby;
}
for (let i = 0; i < board.cross.length; i++) {
let cross = board.cross[i];
let adjcellList = [[board.getc(cross.bx - 1, cross.by - 1), CQANS.rslash, CQANS.lslash],
[board.getc(cross.bx - 1, cross.by + 1), CQANS.lslash, CQANS.rslash],
[board.getc(cross.bx + 1, cross.by - 1), CQANS.lslash, CQANS.rslash],
[board.getc(cross.bx + 1, cross.by + 1), CQANS.rslash, CQANS.lslash]];
adjcellList = adjcellList.filter(c => !c[0].isnull);
// finish clue
if (cross.qnum >= 0) {
if (adjcellList.filter(c => c[0].qans === c[1]).length === cross.qnum) {
adjcellList.forEach(c => add_slash(c[0], c[2]));
}
if (adjcellList.filter(c => c[0].qans !== c[2]).length === cross.qnum) {
adjcellList.forEach(c => add_slash(c[0], c[1]));
}
}
for (let d = 0; d < 4; d++) {
// + + + + + + + +
//
// + 1 + + + 1 + +
// -> ╱
// + + 1 + + + 1 +
//
// + + + + + + + +
if (cross.qnum === 1 && isNotSide(cross)) {
let cross2 = offset(cross, 1, 1, d);
if (cross2.qnum === 1 && isNotSide(cross2)) {
add_slash(offset(cross, .5, .5, d), CQANS.lslash + d);
}
}
// + + + + + + + +
// ╱ ╲
// + 1 1 + -> + 1 1 +
// ╲ ╱
// + + + + + + + +
if (cross.qnum === 1) {
if (offset(cross, 0, 1, d).isnull || offset(cross, 0, -1, d).isnull) { continue; }
if (!offset(cross, 1, 0, d).isnull && offset(cross, 1, 0, d).qnum === 1) {
add_slash(offset(cross, -0.5, -.5, d), CQANS.lslash + d);
add_slash(offset(cross, -0.5, +.5, d), CQANS.rslash + d);
add_slash(offset(cross, +1.5, -.5, d), CQANS.rslash + d);
add_slash(offset(cross, +1.5, +.5, d), CQANS.lslash + d);
}
}
// + + + + + + + +
// ╲ ╱
// + 3 3 + -> + 3 3 +
// ╱ ╲
// + + + + + + + +
if (cross.qnum === 3) {
if (!offset(cross, 1, 0, d).isnull && offset(cross, 1, 0, d).qnum === 3 && isNotSide(offset(cross, 1, 0, d))) {
add_slash(offset(cross, -0.5, -.5, d), CQANS.rslash + d);
add_slash(offset(cross, -0.5, +.5, d), CQANS.lslash + d);
add_slash(offset(cross, +1.5, -.5, d), CQANS.lslash + d);
add_slash(offset(cross, +1.5, +.5, d), CQANS.rslash + d);
}
}
}
}
// no loop
// + + + + + +
// / \ / \
// + + + -> + + +
// \ \ \
// + + + + + +
forEachCell(cell => {
if (cell.qans !== CQANS.none) { return; }
let cross1, cross2;
cross1 = board.getobj(cell.bx - 1, cell.by - 1);
cross2 = board.getobj(cell.bx + 1, cell.by + 1);
if (cross1.path !== null && cross1.path === cross2.path) {
add_slash(cell, CQANS.lslash);
}
cross1 = board.getobj(cell.bx - 1, cell.by + 1);
cross2 = board.getobj(cell.bx + 1, cell.by - 1);
if (cross1.path !== null && cross1.path === cross2.path) {
add_slash(cell, CQANS.rslash);
}
});
}
function NuribouAssist() {
forEachCell(cell => {
if (cell.qnum !== CQNUM.none) {
add_green(cell);
}
// surrounded white cell
let templist = [offset(cell, 1, 0, 0), offset(cell, 1, 0, 1), offset(cell, 1, 0, 2), offset(cell, 1, 0, 3)];
if (cell.qnum === CQNUM.none && templist.filter(c => isBlack(c)).length === 4) {
add_black(cell);
}
});
StripRegion_cell({
isShaded: isBlack,
add_unshaded: add_green,
});
SizeRegion_Cell({
isShaded: isGreen,
isUnshaded: isBlack,
add_shaded: add_green,
add_unshaded: c => add_black(c, true),
});
// unreachable cell
{
let list = [];
forEachCell(cell => {
if (cell.qnum !== CQNUM.none) {
list.push(cell);
if (cell.qnum === CQNUM.quesmark) { return; }
for (let dx = -cell.qnum + 1; dx <= cell.qnum - 1; dx++) {
for (let dy = -cell.qnum + Math.abs(dx) + 1; dy <= cell.qnum - Math.abs(dx) - 1; dy++) {
let c = offset(cell, dx, dy);
if (c.isnull || list.includes(c)) { continue; }
list.push(c);
}
}
}
});
if (!list.some(c => c.qnum === CQNUM.quesmark)) {
forEachCell(cell => {
if (!list.includes(cell)) {
add_black(cell);
}
});
}
}
}
function NurikabeAssist() {
forEachCell(cell => {
// surrounded white cell
let templist = [offset(cell, 1, 0, 0), offset(cell, 1, 0, 1), offset(cell, 1, 0, 2), offset(cell, 1, 0, 3)];
if (cell.qnum === CQNUM.none && templist.filter(c => isBlack(c)).length === 4) {
add_black(cell);
}
});
CellConnected({
isShaded: isBlack,
isUnshaded: c => c.qsub === CQSUB.dot || c.qnum !== CQNUM.none,
add_shaded: c => add_black(c, true),
add_unshaded: add_dot,
});
No2x2Cell({
isShaded: isBlack,
add_unshaded: add_dot,
});
SizeRegion_Cell({
isShaded: c => c.qsub === CQSUB.dot || c.qnum !== CQNUM.none,
isUnshaded: isBlack,
add_shaded: add_dot,
add_unshaded: c => add_black(c, true),
});
// unreachable cell
{
let list = [];
forEachCell(cell => {
if (cell.qnum !== CQNUM.none) {
list.push(cell);
if (cell.qnum === CQNUM.quesmark) { return; }
for (let dx = -cell.qnum + 1; dx <= cell.qnum - 1; dx++) {
for (let dy = -cell.qnum + Math.abs(dx) + 1; dy <= cell.qnum - Math.abs(dx) - 1; dy++) {
let c = offset(cell, dx, dy);
if (c.isnull || list.includes(c)) { continue; }
list.push(c);
}
}
}
});
if (!list.some(c => c.qnum === CQNUM.quesmark)) {
forEachCell(cell => {
if (!list.includes(cell)) {
add_black(cell);
}
});
}
}
}
function GuideArrowAssist() {
BlackNotAdjacent();
GreenConnected();
GreenNoLoopInCell();
let goalcell = board.getc(board.goalpos.bx, board.goalpos.by);
forEachCell(cell => {
if (cell === goalcell) {
add_green(cell);
return;
}
if (cell.qnum !== CQNUM.none) {
add_green(cell);
if (cell.qnum !== CQNUM.quesmark) {
let d = qdirRemap(cell.qnum);
add_green(dir(cell.adjacent, d));
}
return;
}
});
// direction consistency
{
let vis = new Map();
let dfs = function (c, d) {
if (vis.has(c)) { return; }
vis.set(c, d);
for (let d1 = 0; d1 < 4; d1++) {
if (d1 === d) { continue; }
let c1 = dir(c.adjacent, d1);
if (c1 === undefined || c1.isnull || c1.qsub !== CQSUB.green) { continue; }
dfs(c1, (d1 + 2) % 4);
}
};
dfs(goalcell, -1);
forEachCell(cell => {
if (cell.qnum === CQNUM.none || cell.qnum === CQNUM.quesmark) { return; }
dfs(cell, qdirRemap(cell.qnum));
});
forEachCell(cell => {
if (cell.qsub !== CQSUB.none || cell.qans !== CQANS.none) { return; }
let cnt = 0;
fourside(c => {
if (isGreen(c) && vis.has(c)) { cnt++; }
}, cell.adjacent);
if (cnt >= 2) add_black(cell);
});
}
// single out
{
let vis = new Map();
vis.set(goalcell, -1);
forEachCell(cell => {
let d = (function () {
if (cell.qnum === CQNUM.none || cell.qnum === CQNUM.quesmark) {
let cnt = 0;
let dd = -1;
for (let d1 = 0; d1 < 4; d1++) {
let c1 = dir(cell.adjacent, d1);
if (c1 === undefined || c1.isnull || isBlack(c1)) { continue; }
cnt++;
dd = d1;
}
if (cnt === 1) { return dd; }
return -1;
}
return qdirRemap(cell.qnum);;
})();
if (d === -1) { return; }
while (true) {
if (vis.has(cell)) { break; }
vis.set(cell, d);
cell = dir(cell.adjacent, d);
add_green(cell);
let cnt = 0;
let dd = -1;
for (let d1 = 0; d1 < 4; d1++) {
let c1 = dir(cell.adjacent, d1);
if (c1 === undefined || c1.isnull || isBlack(c1)) { continue; }
if (vis.has(c1) && vis.get(c1) === (d1 + 2) % 4) { continue; }
cnt++;
dd = d1;
}
if (cnt !== 1) { break; }
d = dd;
}
});
}
}
function YinyangAssist() {
let add_color = function (c, color) {
if (c === undefined || c.isnull || c.anum !== CANUM.none || color !== CANUM.wcir && color !== CANUM.bcir) { return; }
if (step && flg) { return; }
flg = true;
c.setAnum(color);
c.draw();
};
let add_black = function (c) {
add_color(c, CANUM.bcir);
};
let add_white = function (c) {
add_color(c, CANUM.wcir);
};
CellConnected({
isShaded: c => c.anum === CANUM.wcir,
isUnshaded: c => c.anum === CANUM.bcir,
add_shaded: add_white,
add_unshaded: add_black,
});
CellConnected({
isShaded: c => c.anum === CANUM.bcir,
isUnshaded: c => c.anum === CANUM.wcir,
add_shaded: add_black,
add_unshaded: add_white,
});
No2x2Cell({
isShaded: c => c.anum === CANUM.wcir,
add_unshaded: add_black,
});
No2x2Cell({
isShaded: c => c.anum === CANUM.bcir,
add_unshaded: add_white,
});
NoCheckerCell({
isShaded: c => c.anum === CANUM.wcir,
isUnshaded: c => c.anum === CANUM.bcir,
add_shaded: add_white,
add_unshaded: add_black,
});
// cell at side is grouped when both sides are even
if (board.rows % 2 === 0 && board.cols % 2 === 0) {
for (let i = 1; i + 1 < board.rows; i += 2) {
let cell1 = board.getc(board.minbx + 1, 2 * i + 1);
let cell2 = board.getc(board.minbx + 1, 2 * i + 3);
if (cell1.anum !== CANUM.none || cell2.anum !== CANUM.none) {
add_color(cell1, cell2.anum);
add_color(cell2, cell1.anum);
}
cell1 = board.getc(board.maxbx - 1, 2 * i + 1);
cell2 = board.getc(board.maxbx - 1, 2 * i + 3);
if (cell1.anum !== CANUM.none || cell2.anum !== CANUM.none) {
add_color(cell1, cell2.anum);
add_color(cell2, cell1.anum);
}
}
for (let i = 1; i + 1 < board.cols; i += 2) {
let cell1 = board.getc(2 * i + 1, board.minby + 1);
let cell2 = board.getc(2 * i + 3, board.minby + 1);
if (cell1.anum !== CANUM.none || cell2.anum !== CANUM.none) {
add_color(cell1, cell2.anum);
add_color(cell2, cell1.anum);
}
cell1 = board.getc(2 * i + 1, board.maxby - 1);
cell2 = board.getc(2 * i + 3, board.maxby - 1);
if (cell1.anum !== CANUM.none || cell2.anum !== CANUM.none) {
add_color(cell1, cell2.anum);
add_color(cell2, cell1.anum);
}
}
}
forEachCell(cell => {
if (cell.qnum !== CQNUM.none) {
add_color(cell, cell.qnum);
}
// ○ ● ○●●
// ○ ○ -> ○ ○
if (cell.anum === CANUM.none) {
for (let d = 0; d < 4; d++) {
let templist = [offset(cell, 1, -1, d), offset(cell, 1, 1, d), offset(cell, 0, -1, d), offset(cell, 0, 1, d)];
if (!templist.some(c => c.isnull || c.anum === CANUM.none) &&
templist[0].anum === templist[1].anum && templist[2].anum !== templist[3].anum) {
add_color(cell, CANUM.bcir + CANUM.wcir - templist[0].anum);
}
}
}
});
// outside
{
let firstcell = board.cell[0];
let cellList = [];
for (let j = 0; j < board.rows; j++) { cellList.push(offset(firstcell, 0, j)); }
for (let i = 1; i < board.cols - 1; i++) { cellList.push(offset(firstcell, i, board.rows - 1)); }
for (let j = board.rows - 1; j >= 0; j--) { cellList.push(offset(firstcell, board.cols - 1, j)); }
for (let i = board.cols - 2; i > 0; i--) { cellList.push(offset(firstcell, i, 0)); }
let len = cellList.length;
if (cellList.some(c => c.anum === CANUM.bcir) && cellList.some(c => c.anum === CANUM.wcir)) {
for (let i = 0; i < len; i++) {
if (cellList[i].anum === CANUM.none || cellList[(i + 1) % len].anum !== CANUM.none) { continue; }
for (let j = (i + 1) % len; j != i; j = (j + 1) % len) {
if (cellList[j].anum === CANUM.bcir + CANUM.wcir - cellList[i].anum) { break; }
if (cellList[j].anum === CANUM.none) { continue; }
if (cellList[j].anum === cellList[i].anum) {
for (let k = i; k != j; k = (k + 1) % len) {
add_color(cellList[k], cellList[i].anum);
}
}
}
}
}
}
}
function NuriMazeAssist() {
let startcell = board.getc(board.startpos.bx, board.startpos.by);
let goalcell = board.getc(board.goalpos.bx, board.goalpos.by);
No2x2Black();
No2x2Green();
CellConnected({
isShaded: isGreen,
isUnshaded: isBlack,
add_shaded: add_green,
add_unshaded: add_black,
isLinked: (c, nb, nc) => c.room === nc.room,
});
CellConnected({
isShaded: c => {
return c === startcell || c === goalcell || c.ques === CQUES.cir;
},
isUnshaded: c => isBlack(c) || c.ques === CQUES.tri,
add_shaded: add_green,
add_unshaded: () => { },
isLinked: (c, nb, nc) => c.room === nc.room,
});
CellConnected({
isShaded: c => {
if (c === startcell || c === goalcell) { return c.lcnt === 0; }
return c.lcnt == 1;
},
isUnshaded: c => {
if (c === startcell || c === goalcell) { return c.lcnt === 1; }
return c.lcnt === 2 || isBlack(c) || c.ques === CQUES.tri;
},
add_shaded: add_green,
add_unshaded: () => { },
isLinked: (c, nb, nc) => c.room === nc.room,
cantDivideShade: n => n % 2 === 1,
OnlyOneConnected: false,
UnshadeEmpty: false,
});
let circnt = 0;
forEachCell(cell => {
circnt += cell.ques === CQUES.cir;
});
for (let i = 0; i < board.roommgr.components.length; i++) {
let room = board.roommgr.components[i];
let cellList = [];
for (let j = 0; j < room.clist.length; j++) {
cellList.push(room.clist[j]);
}
if (cellList.some(c => isGreen(c) || c.ques === CQUES.cir || c.ques === CQUES.tri || c.lcnt > 0) ||
room === startcell.room || room === goalcell.room) {
cellList.forEach(c => add_green(c));
continue;
}
if (cellList.some(c => isBlack(c))) {
cellList.forEach(c => add_black(c));
continue;
}
let circnt1 = circnt, circnt2 = circnt;
let templist = [];
cellList.forEach(c => {
let list = [offset(c, -1, 0), offset(c, 0, -1), offset(c, 0, 1), offset(c, 1, 0)];
list.forEach(c => {
if (c.isnull || templist.includes(c)) { return; }
templist.push(c);
});
});
templist = templist.filter(c => isGreen(c));
if (templist.length < 2) { continue; }
// no loop
let templist2 = templist.map(c => {
let dfslist = [];
let dfs = function (c) {
if (c.isnull || c.qsub !== CQSUB.green || dfslist.includes(c)) { return; }
dfslist.push(c);
fourside(dfs, c.adjacent);
};
dfs(c);
if (dfslist.some(c => c === startcell)) {
circnt1 = dfslist.filter(c => c.ques === CQUES.cir).length;
}
if (dfslist.some(c => c === goalcell)) {
circnt2 = dfslist.filter(c => c.ques === CQUES.cir).length;
}
return dfslist.filter(c => templist.includes(c)).length;
});
if (templist2.some(n => n > 1)) {
cellList.forEach(c => add_black(c));
continue;
}
// not enough cir
if (circnt1 + circnt2 < circnt) {
cellList.forEach(c => add_black(c));
continue;
}
// no branch for line
templist2 = templist.map(c => {
let res = 0;
let dfslist = [];
let dfs = function (c) {
if (c.isnull || c.qsub !== CQSUB.green || dfslist.includes(c)) { return; }
if (c === startcell || c === goalcell || c.ques === CQUES.cir || c.lcnt > 0) {
res += c === startcell;
res += c === goalcell;
res += (c.ques === CQUES.cir && c.lcnt === 0);
res += c.lcnt;
res += (dfslist.some(c => c.ques === CQUES.tri) ? 2 : 0);
return;
}
dfslist.push(c);
fourside(dfs, c.adjacent);
dfslist.pop();
}
dfs(c);
return Math.min(res, 2);
});
if (templist2.reduce((a, b) => a + b) > 2) {
cellList.forEach(c => add_black(c));
continue;
}
}
forEachCell(cell => {
if (cell.ques === CQUES.cir) {
let templist = [offset(cell, -1, 0), offset(cell, 1, 0), offset(cell, 0, -1), offset(cell, 0, 1)];
templist = templist.filter(c => !c.isnull && c.qans !== CQANS.black);
if (templist.length === 2) {
templist.forEach(c => add_green(c));
}
}
// surrounded by black
{
let templist = [offset(cell, -1, 0), offset(cell, 1, 0), offset(cell, 0, -1), offset(cell, 0, 1)];
if (templist.filter(c => isBlack(c)).length === 4) {
add_black(cell);
}
}
// no 2*2
{
let templist = [cell, offset(cell, 1, 0), offset(cell, 0, 1), offset(cell, 1, 1)];
if (!templist.some(c => c.isnull) && !templist.some(c => isGreen(c))) {
let templist2 = templist.filter(c => !c.qans);
if (templist2.length > 0 && !templist2.some(c => c.room !== templist2[0].room)) {
add_green(templist2[0]);
}
}
if (!templist.some(c => c.qans)) {
let templist2 = templist.filter(c => c.qsub !== CQSUB.green);
if (templist2.length > 0 && !templist2.some(c => c.room !== templist2[0].room)) {
add_black(templist2[0]);
}
}
}
});
// line
forEachCell(cell => {
if (isBlack(cell) || cell.ques === CQUES.tri) {
fourside(add_cross, cell.adjborder);
}
if (cell.qans !== CQANS.black) {
let emptycnt = 0;
let linecnt = 0;
fourside((c, b) => {
if (!c.isnull && b.qsub !== BQSUB.cross) { emptycnt++; }
linecnt += b.line;
}, cell.adjacent, cell.adjborder);
if (linecnt > 0) {
add_green(cell);
}
// no branch
if (linecnt === 2 || linecnt === 1 && (cell === startcell || cell === goalcell)) {
fourside(add_cross, cell.adjborder);
}
// no deadend
if (emptycnt === 1) {
if (cell !== startcell && cell !== goalcell) {
fourside(add_cross, cell.adjborder);
} else {
fourside((c, b) => {
if (!c.isnull && b.qsub !== BQSUB.cross) {
add_line(b);
}
}, cell.adjacent, cell.adjborder);
}
}
// 2 degree path
if (emptycnt === 2 && cell !== startcell && cell !== goalcell && (linecnt === 1 || cell.ques === CQUES.cir)) {
fourside((c, b) => {
add_line(b);
if (!b.isnull && b.line) {
add_green(c);
}
}, cell.adjacent, cell.adjborder);
}
// extend line
if (linecnt === 1 && cell !== startcell && cell !== goalcell ||
linecnt === 0 && (cell === startcell || cell === goalcell || cell.ques === CQUES.cir)) {
let fn = function (c, b, list) {
if (c.isnull || c.qsub !== CQSUB.green || list.includes(c)) { return; }
if (b !== null && b.line) { return; }
list.push(c);
if (c.lcnt === 1 || c.ques === CQUES.cir || c === startcell || c === goalcell) {
for (let j = 1; j < list.length; j++) {
let cell1 = list[j - 1];
let cell2 = list[j];
let border = board.getb((cell1.bx + cell2.bx) / 2, (cell1.by + cell2.by) / 2);
add_line(border);
add_green(cell1);
add_green(cell2);
}
}
fn(c.adjacent.top, c.adjborder.top, list);
fn(c.adjacent.bottom, c.adjborder.bottom, list);
fn(c.adjacent.left, c.adjborder.left, list);
fn(c.adjacent.right, c.adjborder.right, list);
list.pop();
}
fn(cell, null, []);
}
}
});
}
function AquapelagoAssist() {
No2x2Green();
BlackNotAdjacent();
GreenConnected();
forEachCell(cell => {
if (cell.qnum !== CQNUM.none) {
add_black(cell);
}
if (cell.qnum > 0) {
let templist = [];
let fn = function (c) {
if (c.qans !== CQANS.black) { return; }
if (templist.includes(c)) { return; }
templist.push(c);
fn(offset(c, -1, -1));
fn(offset(c, -1, +1));
fn(offset(c, +1, -1));
fn(offset(c, +1, +1));
};
fn(cell);
if (templist.length === cell.qnum) {
templist.forEach(c => {
add_green(offset(c, -1, -1));
add_green(offset(c, -1, +1));
add_green(offset(c, +1, -1));
add_green(offset(c, +1, +1));
});
}
if (templist.length < cell.qnum) {
let list = [];
let fn = function (c) {
if (c.isnull || isBlack(c) || isGreen(c)) { return; }
if (list.includes(c)) { return; }
list.push(c);
};
templist.forEach(c => {
fn(offset(c, -1, -1));
fn(offset(c, -1, +1));
fn(offset(c, +1, -1));
fn(offset(c, +1, +1));
});
if (list.length === 1) {
add_black(list[0]);
}
}
}
});
}
function IcebarnAssist() {
let add_arrow = function (b, dir) {
if (b === undefined || b.isnull || b.qsub !== BQSUB.none) { return; }
if (step && flg) { return; }
flg = true;
b.setQsub(dir);
b.draw();
};
let genlist = c => {
if (c.adjborder === undefined) { return []; }
return [[c.adjborder.top, BQSUB.arrow_up, BQSUB.arrow_dn], [c.adjborder.bottom, BQSUB.arrow_dn, BQSUB.arrow_up],
[c.adjborder.left, BQSUB.arrow_lt, BQSUB.arrow_rt], [c.adjborder.right, BQSUB.arrow_rt, BQSUB.arrow_lt]]
};
let has_in = function (c) {
let templist = genlist(c);
templist = templist.filter(b => !b[0].isnull && b[0].line);
return templist.some(([b, o_arr, i_arr]) => b.qsub === i_arr);
}
let has_out = function (c) {
let templist = genlist(c);
templist = templist.filter(b => !b[0].isnull && b[0].line);
return templist.some(([b, o_arr, i_arr]) => b.qsub === o_arr);
}
SingleLoopInCell();
// add cross outside except IN and OUT
let inb = board.getb(board.arrowin.bx, board.arrowin.by);
let outb = board.getb(board.arrowout.bx, board.arrowout.by);
{
add_line(inb);
add_line(outb);
let minbx = board.minbx + 2;
let minby = board.minby + 2;
let maxbx = board.maxbx - 2;
let maxby = board.maxby - 2;
for (let j = minbx + 1; j < maxbx; j += 2) {
add_cross(board.getb(j, minby));
add_cross(board.getb(j, maxby));
}
for (let j = minby + 1; j < maxby; j += 2) {
add_cross(board.getb(minbx, j));
add_cross(board.getb(maxbx, j));
}
}
for (let i = 0; i < board.border.length; i++) {
let border = board.border[i];
if (border.qdir != QDIR.none) {
add_arrow(border, border.qdir + 10); // from qdir to bqsub
add_line(border);
}
}
let iceSet = new Set();
forEachCell(cell => {
// pass all ice
if (isIce(cell) && !iceSet.has(cell)) {
let list = [], blist = [];
let dfs = function (c) {
if (c.isnull || !isIce(c) || iceSet.has(c)) { return; }
iceSet.add(c);
list.push(c);
fourside(b => blist.push(b), c.adjborder);
fourside(dfs, c.adjacent);
}
dfs(cell);
blist = blist.filter(b => b.sidecell.some(c => isIce(c)) && b.sidecell.some(c => !c.isnull && !isIce(c)));
blist = blist.filter(b => b.qsub !== BQSUB.cross);
if (blist.length === 2) {
blist.forEach(b => add_line(b));
}
}
// extend arrow
if (cell.lcnt === 2 && !isIce(cell)) {
let list = genlist(cell);
list = list.filter(b => b[0].line);
if (list.filter(b => b[0].qsub === BQSUB.none).length === 1) {
if (list[0][0].qsub !== BQSUB.none) {
list = [list[1], list[0]];
}
if (list[1][0].qsub === list[1][1]) {
add_arrow(list[0][0], list[0][2]);
}
if (list[1][0].qsub === list[1][2]) {
add_arrow(list[0][0], list[0][1]);
}
}
}
// choose path
if (cell.lcnt === 1 && !isIce(cell)) {
for (let d = 0; d < 4; d++) {
let ncell = dir(cell.adjacent, d);
while (!ncell.isnull && isIce(ncell)) {
ncell = dir(ncell.adjacent, d);
}
if (ncell.isnull || ncell.lcnt !== 1 || dir(ncell.adjborder, d + 2).line) { continue; }
if (has_in(cell) && has_in(ncell) || has_out(cell) && has_out(ncell)) {
add_cross(dir(cell.adjborder, d));
}
if (board.linegraph.components.length > 2 &&
(cell.path === inb.path && ncell.path === outb.path || cell.path === outb.path && ncell.path === inb.path)) {
add_cross(dir(cell.adjborder, d));
}
}
}
});
// this is moved here because the following two CellConnected may have bug if line on ice isn't fully labeled with arrow
forEachCell(cell => {
if (isIce(cell)) {
for (let d = 0; d < 4; d++) {
let pcell = cell;
while (isIce(pcell) && dir(pcell.adjborder, d).qsub === BQSUB.cross && dir(pcell.adjborder, d + 2).qsub === BQSUB.cross) {
add_cross(dir(pcell.adjborder, d + 2));
pcell = dir(pcell.adjacent, d + 2);
}
pcell = cell;
while (isIce(pcell) && dir(pcell.adjborder, d).line && (!dir(pcell.adjborder, d + 2).line ||
dir(pcell.adjborder, d).qsub !== BQSUB.none && dir(pcell.adjborder, d + 2).qsub === BQSUB.none)) {
add_line(dir(pcell.adjborder, d + 2));
if (dir(pcell.adjborder, d).qsub !== BQSUB.none) {
add_arrow(dir(pcell.adjborder, d + 2), dir(pcell.adjborder, d).qsub);
}
pcell = dir(pcell.adjacent, d + 2);
}
}
}
});
CellConnected({
isShaded: c => !has_out(c) && has_in(c),
isUnshaded: c => has_out(c),
add_shaded: () => { },
add_unshaded: c => fourside(add_cross, c.adjborder),
isNotPassable: (c, nb, nc) => nb.qsub === BQSUB.cross,
OnlyOneConnected: false,
});
CellConnected({
isShaded: c => !has_in(c) && has_out(c),
isUnshaded: c => has_in(c),
add_shaded: () => { },
add_unshaded: c => fourside(add_cross, c.adjborder),
isNotPassable: (c, nb, nc) => nb.qsub === BQSUB.cross,
OnlyOneConnected: false,
});
}
function InverseLitsoAssist() {
BlackConnected();
CellConnected({
isShaded: isGreen,
isUnshaded: isBlack,
add_shaded: add_green,
add_unshaded: add_black,
isNotPassable: (c, nb, nc) => nb.ques,
OnlyOneConnected: false,
UnshadeEmpty: false,
});
No2x2Black();
for (let i = 0; i < board.roommgr.components.length; i++) {
let room = board.roommgr.components[i];
let templist = [];
for (let j = 0; j < room.clist.length; j++) {
templist.push(room.clist[j]);
}
if (templist.filter(c => c.qsub === CQSUB.dot).length === 4) {
templist.forEach(c => add_black(c));
}
if (templist.filter(c => c.qans !== CQANS.black).length === 4) {
templist.forEach(c => add_dot(c));
}
for (let j = 0; j < room.clist.length; j++) {
let cell = room.clist[j];
// clean out region lower than 4
let templist2 = [];
let fn = function (c) {
if (c.room !== room || isBlack(c) || templist2.includes(c)) { return; }
templist2.push(c);
fourside(fn, c.adjacent);
}
fn(cell);
if (templist2.length < 4) {
templist2.forEach(c => add_black(c));
}
// out of reach in 3 steps
templist2 = [];
let fn2 = function (c, step = 3) {
if (step < 0 || c.room !== room) { return; }
templist2.push(c);
fn2(c.adjacent.top, step - 1);
fn2(c.adjacent.bottom, step - 1);
fn2(c.adjacent.left, step - 1);
fn2(c.adjacent.right, step - 1);
}
if (cell.qsub === CQSUB.dot) {
fn2(cell);
templist.forEach(c => {
if (!templist2.includes(c)) {
add_black(c);
}
});
}
let list = [cell, offset(cell, 1, 0), offset(cell, 0, 1), offset(cell, 1, 1)];
if (!list.some(c => c.isnull || c.room !== cell.room)) {
list.forEach(c => fn2(c));
templist.forEach(c => {
if (!templist2.includes(c)) {
add_black(c);
}
});
}
}
}
}
function LitsAssist() {
BlackConnected();
BlackConnected_InRegion();
No2x2Black();
for (let i = 0; i < board.roommgr.components.length; i++) {
let room = board.roommgr.components[i];
let templist = [];
for (let j = 0; j < room.clist.length; j++) {
templist.push(room.clist[j]);
}
if (templist.filter(c => c.qsub !== CQSUB.dot).length === 4) {
templist.forEach(c => add_black(c));
}
if (templist.filter(c => isBlack(c)).length === 4) {
templist.forEach(c => add_dot(c));
}
for (let j = 0; j < room.clist.length; j++) {
let cell = room.clist[j];
if (cell.qsub === CQSUB.dot) { continue; }
// clean out region lower than 4
let templist2 = [];
let fn = function (c) {
if (c.room !== room || c.qsub === CQSUB.dot || templist2.includes(c)) { return; }
templist2.push(c);
fourside(fn, c.adjacent);
}
fn(cell);
if (templist2.length < 4) {
templist2.forEach(c => add_dot(c));
}
if (cell.qans !== CQANS.black) { continue; }
// out of reach in 3 steps
templist2 = [];
let fn2 = function (c, step = 0) {
if (step > 3 || c.room !== room) { return; }
templist2.push(c);
fourside(nc => fn2(nc, step + 1), c.adjacent);
}
fn2(cell);
templist.forEach(c => {
if (!templist2.includes(c)) {
add_dot(c);
}
});
}
}
}
function NothreeAssist() {
BlackNotAdjacent();
GreenConnected();
for (let i = 0; i < board.dots.length; i++) {
let dot = board.dots[i].piece;
if (dot.qnum !== 1) { continue; }
let cellList = [];
if (dot.bx % 2 === 1 && dot.by % 2 === 1) {
cellList.push(board.getc(dot.bx, dot.by));
}
if (dot.bx % 2 === 0 && dot.by % 2 === 1) {
cellList.push(board.getc(dot.bx - 1, dot.by));
cellList.push(board.getc(dot.bx + 1, dot.by));
}
if (dot.bx % 2 === 1 && dot.by % 2 === 0) {
cellList.push(board.getc(dot.bx, dot.by - 1));
cellList.push(board.getc(dot.bx, dot.by + 1));
}
if (dot.bx % 2 === 0 && dot.by % 2 === 0) {
cellList.push(board.getc(dot.bx - 1, dot.by - 1));
cellList.push(board.getc(dot.bx + 1, dot.by - 1));
cellList.push(board.getc(dot.bx - 1, dot.by + 1));
cellList.push(board.getc(dot.bx + 1, dot.by + 1));
}
let blackcnt = cellList.filter(c => isBlack(c)).length;
let emptycnt = cellList.filter(c => c.qans !== CQANS.black && c.qsub !== CQSUB.dot).length;
if (blackcnt === 0 && emptycnt === 1) {
cellList.forEach(c => add_black(c));
}
if (blackcnt === 1) {
cellList.forEach(c => add_green(c));
}
}
forEachCell(cell => {
for (let d = 0; d < 4; d++) {
let fn = function (list) {
if (!list.some(c => c.isnull) && list.filter(c => isBlack(c)).length === 2) {
list.forEach(c => add_green(c));
}
}
// O.O.O
fn([cell, offset(cell, 2, 0, d), offset(cell, 4, 0, d)]);
// O..O..O
fn([cell, offset(cell, 3, 0, d), offset(cell, 6, 0, d)]);
// O...O...O
fn([cell, offset(cell, 4, 0, d), offset(cell, 8, 0, d)]);
// OXXXXOX?XXO
for (let l = 5; l * 2 < Math.max(board.cols, board.rows); l++) {
let templist1 = [cell, offset(cell, l, 0, d), offset(cell, 2 * l, 0, d)];
if (templist1.some(c => c.isnull)) { continue; }
templist1 = templist1.filter(c => c.qans !== CQANS.black);
let templist2 = [];
for (let j = 1; j < 2 * l; j++) {
if (j === l) { continue; }
templist2.push(offset(cell, j, 0, d));
}
if (templist2.some(c => isBlack(c))) { continue; }
templist2 = templist2.filter(c => c.qsub !== CQSUB.dot);
if (templist1.length === 0 && templist2.length === 1) {
add_black(templist2[0]);
}
if (templist1.length === 1 && templist2.length === 0) {
add_green(templist1[0]);
}
}
}
});
}
function AyeheyaAssist() {
for (let i = 0; i < board.roommgr.components.length; i++) {
let room = board.roommgr.components[i];
let qnum = room.top.qnum;
let rows = room.clist.getRectSize().rows;
let cols = room.clist.getRectSize().cols;
let tx = room.clist.getRectSize().x1 + room.clist.getRectSize().x2;
let ty = room.clist.getRectSize().y1 + room.clist.getRectSize().y2;
if (rows % 2 === 1 && cols % 2 === 0) {
let c1 = board.getc(tx / 2 - 1, ty / 2);
let c2 = board.getc(tx / 2 + 1, ty / 2);
if (c1.room === room) { add_green(c1); }
if (c2.room === room) { add_green(c2); }
}
if (rows % 2 === 0 && cols % 2 === 1) {
let c1 = board.getc(tx / 2, ty / 2 - 1);
let c2 = board.getc(tx / 2, ty / 2 + 1);
if (c1.room === room) { add_green(c1); }
if (c2.room === room) { add_green(c2); }
}
if (rows % 2 === 1 && cols % 2 === 1) {
let c = board.getc(tx / 2, ty / 2);
if (qnum >= 0 && qnum % 2 === 0 && c.room === room) {
add_green(c);
}
if (qnum >= 0 && qnum % 2 === 1 && c.room === room) {
add_black(c);
}
}
for (let j = 0; j < room.clist.length; j++) {
let cell = room.clist[j];
if (isGreen(cell)) {
add_green(board.getc(tx - cell.bx, ty - cell.by));
}
if (isBlack(cell)) {
add_black(board.getc(tx - cell.bx, ty - cell.by));
}
}
}
HeyawakeAssist();
}
function ShakashakaAssist() {
let isEmpty = c => !c.isnull && c.qnum === CQNUM.none && c.qsub === CQSUB.none && c.qans === CQANS.none;
let isNotBlack = c => !c.isnull && c.qnum === CQNUM.none;
// draw triangle
let add_tri = function (c, ndir) { // 0 = ◣, 1 = ◢, 2 = ◥, 3 = ◤
if (c === undefined || c.isnull || !isEmpty(c)) { return; }
if (step && flg) { return; }
flg = true;
ndir = (ndir % 4 + 4) % 4;
c.setQans(ndir + 2);
c.draw();
};
// check black edge
let isEdge = function (c, ndir) { // 0 = left, 1 = bottom, 2 = right, 3 = top
ndir = (ndir % 4 + 4) % 4;
let tri = [(ndir + 0) % 4 + 2, (ndir + 1) % 4 + 2, (ndir + 2) % 4 + 2, (ndir + 3) % 4 + 2];
return c.isnull || c.qnum !== CQNUM.none || c.qans === tri[0] || c.qans === tri[3];
};
// check if dot connects to edge
let isDotEdge = function (c) {
if (c.qsub !== CQSUB.dot) { return false; }
let dfslist = [];
let dfs = function (c, ndir = -1) {
if (isEmpty(c) || dfslist.includes(c)) { return; }
if (ndir !== -1 && isEdge(c, ndir + 2)) { return true; }
if (c.qsub === CQSUB.dot) {
dfslist.push(c);
for (let d = 0; d < 4; d++) {
if (dfs(dir(c.adjacent, d + 1), d)) { return true; }
}
}
return false;
};
return dfs(c);
};
let isNotDiagRect = function (c) {
return c.isnull || c.qnum !== CQNUM.none || isDotEdge(c);
}
// check if connects to edge
let isEdgeEx = function (c, ndir) { // 0 = left, 1 = bottom, 2 = right, 3 = top
return isEdge(c, ndir) || isDotEdge(c);
};
// corner of a rectangle i.e. both side connects to edge
let isCorner = function (c, ndir) { // 0 = ◣, 1 = ◢, 2 = ◥, 3 = ◤
ndir = (ndir % 4 + 4) % 4;
return isEdgeEx(c, ndir) && isEdgeEx(c, (ndir + 1) % 4)
};
// if can place a specific triangle
let isTriAble_Basic = function (c, ndir) { // 0 = ◣, 1 = ◢, 2 = ◥, 3 = ◤
ndir = (ndir % 4 + 4) % 4;
let tri = [(ndir + 0) % 4 + 2, (ndir + 1) % 4 + 2, (ndir + 2) % 4 + 2, (ndir + 3) % 4 + 2];
let fn = (c, qans) => !c.isnull && c.qans === qans;
// already placed other triangle
if (!isEmpty(c) && c.qans !== tri[0]) { return false; }
// already placed the triangle
if (c.qans === tri[0]) { return true; }
// check if all ～s can be part of a diagonal rectangle.
// ～～
// ◣～
if (isEdge(offset(c, +1, +0, ndir), ndir) || isEdge(offset(c, +0, -1, ndir), ndir + 1)) { return false; }
if (isNotDiagRect(offset(c, +1, -1, ndir))) { return false; }
// ＿＿＿ ＿◥＿ ＿＿＿ ＿＿＿ ＿＿＿ ＿＿＿
// ＿◣◥ or ＿◣＿ or ◣◣＿ or ◤◣＿ or ＿◣＿ or ＿◣＿
// ＿＿＿ ＿＿＿ ＿＿＿ ＿＿＿ ＿◣＿ ＿◢＿
if (fn(offset(c, +1, +0, ndir), tri[2]) || fn(offset(c, +0, -1, ndir), tri[2])) { return false; }
if (fn(offset(c, -1, +0, ndir), tri[0]) || fn(offset(c, -1, -1, ndir), tri[3])) { return false; }
if (fn(offset(c, +0, +1, ndir), tri[0]) || fn(offset(c, +0, +1, ndir), tri[1])) { return false; }
// ＿＿◤ ＿＿◣ ＿＿◢ ◤＿＿ ＿＿＿ ＿＿＿
// ＿◣＿ or ＿◣＿ or ＿◣＿ or ＿◣＿ or ＿◣＿ or ＿◣＿
// ＿＿＿ ＿＿＿ ＿＿＿ ＿＿＿ ◣＿＿ ＿＿◢
if (fn(offset(c, +1, -1, ndir), tri[3]) || fn(offset(c, -1, -1, ndir), tri[3])) { return false; }
if (fn(offset(c, +1, -1, ndir), tri[0]) || fn(offset(c, -1, +1, ndir), tri[0])) { return false; }
if (fn(offset(c, +1, -1, ndir), tri[1]) || fn(offset(c, +1, +1, ndir), tri[1])) { return false; }
// ◤＿＿ ＿＿＿ ＿◥＿ ＿＿＿
// ＿＿＿ or ＿＿＿ or ＿＿＿ or ＿＿◥
// ◣＿＿ ◣＿◢ ◣＿＿ ◣＿＿
if (fn(offset(c, +0, -2, ndir), tri[3]) || fn(offset(c, +2, +0, ndir), tri[1])) { return false; }
if (fn(offset(c, +1, -2, ndir), tri[2]) || fn(offset(c, +2, -1, ndir), tri[2])) { return false; }
return true;
};
// extend of isntTri including some complex logic
let isTriAble = function (c, ndir, itercnt = 0) { // 0 = ◣, 1 = ◢, 2 = ◥, 3 = ◤
ndir = (ndir % 4 + 4) % 4;
if (!isTriAble_Basic(c, ndir)) { return false; }
if (itercnt >= 5) { return true; }
itercnt++;
// 〓＿◣
// ＿～＿ && ～ !== ◥
// ＿＿〓
if (isNotBlack(offset(c, -1, 0, ndir)) && isNotBlack(offset(c, 0, 1, ndir)) &&
isEdgeEx(offset(c, -2, 0, ndir), ndir + 2) && isEdgeEx(offset(c, 0, 2, ndir), ndir + 3) &&
isNotBlack(offset(c, -1, 1, ndir)) && !isTriAble(offset(c, -1, 1, ndir), ndir + 2, itercnt)) {
return false;
}
// ◣＿＿ ＿◤＿ ＿＿＿ ＿＿＿
// ＿◣＿ or ＿◣＿ , ＿◣＿ or ＿◣◢
// ＿＿＿ ＿＿＿ ＿＿◣ ＿＿＿
if (!isTriAble(offset(c, -1, -1, ndir), ndir, itercnt) &&
!isTriAble(offset(c, +0, -1, ndir), ndir + 3, itercnt)) { return false; }
if (!isTriAble(offset(c, +1, +1, ndir), ndir, itercnt) &&
!isTriAble(offset(c, +1, +0, ndir), ndir + 1, itercnt)) { return false; }
return true;
}
let sel_tri = function (c) {
if (!isEmpty(c)) { return; }
let list = [0, 1, 2, 3].map(n => isTriAble(c, n));
if (list.filter(b => b).length === 1) {
add_tri(c, list.indexOf(true));
}
}
// start assist
forEachCell(cell => {
// dot by clue
if (cell.qnum >= 0 && adjlist(cell.adjacent).filter(c => isNotBlack(c) && c.qans !== CQANS.none).length === cell.qnum) {
fourside(add_dot, cell.adjacent);
}
// triangle by clue
if (cell.qnum >= 0 && adjlist(cell.adjacent).filter(c => isNotBlack(c) && c.qsub !== CQSUB.dot).length === cell.qnum) {
fourside(sel_tri, cell.adjacent);
}
// cannot place any triangle
if (isEmpty(cell) && ![0, 1, 2, 3].some(n => isTriAble(cell, n))) {
add_dot(cell);
}
for (let d = 0; d < 4; d++) {
// ＿＊ ＊＊
// ＊＊ -> ＊＊
let list = [offset(cell, 1, 0, d), offset(cell, 0, 1, d), offset(cell, 1, 1, d)];
if (!list.some(c => c.isnull || c.qsub !== CQSUB.dot) && isDotEdge(list[0])) {
add_dot(cell);
}
// 〓＿〓 -> 〓＊〓
if (isEdgeEx(offset(cell, -1, 0, d), d + 2) && isEdgeEx(offset(cell, 1, 0, d), d)) {
add_dot(cell);
}
// ＿＿＿ － － ＿＊＿
// ＿１＿ && ～ !== ◥ -> ＿１＊
// ～＿＿ － － ＿＿＿
if (cell.qnum === 1 &&
(c => !c.isnull && (isNotBlack(c) || c.qsub === CQSUB.dot))(offset(cell, -1, 0, d)) &&
(c => !c.isnull && (isNotBlack(c) || c.qsub === CQSUB.dot))(offset(cell, 0, +1, d)) &&
(c => c.qnum === CQNUM.none && !isTriAble(c, d + 2))(offset(cell, -1, 1, d))) {
add_dot(offset(cell, 1, 0, d));
add_dot(offset(cell, 0, -1, d));
}
// 〓＿ ＊＿ ＊＿ ～◣
// ＊＊ or 〓＊ or ＊〓 -> ～～
if (isEmpty(cell)) {
let list = [offset(cell, -1, 0, d), offset(cell, 0, 1, d), offset(cell, -1, 1, d)];
if (list.filter(c => !c.isnull && !isEmpty(c) && c.qsub === CQSUB.dot).length === 2 &&
list.filter(c => !c.isnull && !isEmpty(c) && c.qsub !== CQSUB.dot).length === 1) {
let temp = list.find(c => !c.isnull && !isEmpty(c) && c.qsub !== CQSUB.dot);
if (list.indexOf(temp) === 0 && isCorner(temp, d + 1) ||
list.indexOf(temp) === 1 && isCorner(temp, d + 3) ||
list.indexOf(temp) === 2 && isCorner(temp, d + 2)) { add_tri(cell, d); }
}
}
// ＿＿〓 ＿＿〓 ◣＿〓 ◢＿〓
// ＊〓＿ or 〓＊＿ -> ～～＿ or ～～＿
if (isEmpty(offset(cell, 0, 0, d)) && isEmpty(offset(cell, 1, 0, d)) && (
offset(cell, 0, 1, d).qsub === CQSUB.dot && isEdge(offset(cell, 1, 1, d), d + 3) ||
offset(cell, 1, 1, d).qsub === CQSUB.dot && isEdge(offset(cell, 0, 1, d), d + 3)) &&
isEdgeEx(offset(cell, 2, 0, d), d)) {
sel_tri(cell);
}
if (isEmpty(offset(cell, 0, 0, d)) && isEmpty(offset(cell, 1, 0, d)) && (
offset(cell, 0, -1, d).qsub === CQSUB.dot && isEdge(offset(cell, 1, -1, d), d + 1) ||
offset(cell, 1, -1, d).qsub === CQSUB.dot && isEdge(offset(cell, 0, -1, d), d + 1)) &&
isEdgeEx(offset(cell, 2, 0, d), d)) {
sel_tri(cell);
}
}
// side extend
if (cell.qans !== CQANS.none) {
let ndir = cell.qans - 2;
// ◣＿＿ ＿◤＿ ＿＿＿ ＿＿＿
// ＿◣＿ or ＿◣＿ , ＿◣＿ or ＿◣◢
// ＿＿＿ ＿＿＿ ＿＿◣ ＿＿＿
if (!isTriAble(offset(cell, -1, -1, ndir), ndir + 0)) { add_tri(offset(cell, +0, -1, ndir), ndir + 3); }
if (!isTriAble(offset(cell, +0, -1, ndir), ndir + 3)) { add_tri(offset(cell, -1, -1, ndir), ndir + 0); }
if (!isTriAble(offset(cell, +1, +1, ndir), ndir + 0)) { add_tri(offset(cell, +1, +0, ndir), ndir + 1); }
if (!isTriAble(offset(cell, +1, +0, ndir), ndir + 1)) { add_tri(offset(cell, +1, +1, ndir), ndir + 0); }
// ＿〓＿ ＿＿〓 ＿＿＿ ＿＿＿
// ＿＿＿ or ＿＿＿ or ＿＿〓 -> ＿◥＿
// ◣＿＿ ◣＿＿ ◣＿＿ ◣＿＿
if (isEdgeEx(offset(cell, 2, -1, ndir), ndir) || isEdgeEx(offset(cell, 1, -2, ndir), ndir + 1) ||
isEdgeEx(offset(cell, 2, -2, ndir), ndir) || isEdgeEx(offset(cell, 2, -2, ndir), ndir + 1)) {
add_tri(offset(cell, 1, -1, ndir), ndir + 2);
}
// rectangle opposite side extend
// ＿◤＿ ＿◤＿
// ◤＿＿ -> ◤＿◢
// ◣◢＿ ◣◢＿
let tri = [(ndir + 0) % 4 + 2, (ndir + 1) % 4 + 2, (ndir + 2) % 4 + 2, (ndir + 3) % 4 + 2];
let turn1 = offset(cell, 0, -1, ndir);
let turn2 = cell;
while (!offset(turn2, 1, 1, ndir).isnull && offset(turn2, 1, 1, ndir).qans === tri[0]) {
turn2 = offset(turn2, 1, 1, ndir);
}
turn2 = offset(turn2, 1, 0, ndir);
if (turn1.qans === tri[3] && turn2.qans === tri[1]) {
turn1 = offset(turn1, 1, -1, ndir);
turn2 = offset(turn2, 1, -1, ndir);
while ((!turn1.isnull && turn1.qans === tri[3]) || (!turn2.isnull && turn2.qans === tri[1])) {
add_tri(turn1, ndir + 3);
add_tri(turn2, ndir + 1);
turn1 = offset(turn1, 1, -1, ndir);
turn2 = offset(turn2, 1, -1, ndir);
}
}
}
});
}
function HeyawakeAssist() {
GreenConnected();
BlackNotAdjacent();
forEachCell(cell => {
let blackcnt = 0;
fourside(c => {
blackcnt += c.isnull || isBlack(c);
}, cell.adjacent);
// no two facing doors
for (let d = 0; d < 4; d++) {
if (cell.qsub !== CQSUB.green) { break; }
let pcell = dir(cell.adjacent, d);
let bordercnt = 0;
let emptycellList = [cell];
while (!pcell.isnull && pcell.qans !== CQANS.black && bordercnt < 2) {
if (dir(pcell.adjborder, d + 2).ques) {
bordercnt++;
}
emptycellList.push(pcell);
pcell = dir(pcell.adjacent, d);
}
emptycellList = emptycellList.filter(c => c.qsub !== CQSUB.green);
if (bordercnt === 2 && emptycellList.length === 1) {
add_black(emptycellList[0]);
}
}
});
const MAXSIT = 200000;
const MAXAREA = 50;
for (let i = 0; i < board.roommgr.components.length; i++) {
let room = board.roommgr.components[i];
let qnum = room.top.qnum;
if (qnum === CQNUM.none || qnum === CQNUM.quesmark) { continue; }
let list = [];
let surlist = [];
let sitcnt = 0;
let cst = new Map();
let apl = new Map();
for (let j = 0; j < room.clist.length; j++) {
let cell = room.clist[j];
list.push(cell);
cst.set(cell, (isBlack(cell) ? "BLK" : (isGreen(cell) ? "GRN" : "UNK")));
apl.set(cell, (isBlack(cell) ? "BLK" : (isGreen(cell) ? "GRN" : "UNK")));
}
if (qnum === list.filter(c => isBlack(c)).length) {
list.forEach(c => add_green(c));
continue;
}
// randomly chosen approximate formula
if (list.filter(c => c.qans === CQANS.none && c.qsub === CQSUB.none).length > MAXAREA &&
(qnum - list.filter(c => isBlack(c)).length + 1) < list.filter(c => c.qans === CQANS.none && c.qsub === CQSUB.none).length) { continue; }
if ((qnum - list.filter(c => isBlack(c)).length) * 2 + 5 <
list.filter(c => c.qans === CQANS.none && c.qsub === CQSUB.none).length) { continue; }
list.forEach(c => {
adjlist(c.adjacent).forEach(c => {
if (c.isnull || c.room === room || surlist.includes(c)) { return; }
if (isGreen(c) || isBlack(c)) { return; }
surlist.push(c);
apl.set(c, "GRN");
});
});
let dfs = function (i, blkcnt) {
if (sitcnt > MAXSIT) { return; }
if (i === list.length) {
if (blkcnt !== qnum) { return; }
let templist = [];
let templist2 = [];
if (list.some(c => {
if (cst.get(c) === "BLK") { return false; }
if (templist.includes(c)) { return false; }
let n = 0;
let olist = [];
let dfs = function (c) {
if (c.isnull || templist.includes(c)) { return false; }
if (c.room !== room) {
if (isBlack(c)) { return false; }
olist.push(c);
return true;
}
if (cst.get(c) === "BLK") { return false; }
templist.push(c);
n++;
let res = 0;
res |= dfs(offset(c, -1, 0));
res |= dfs(offset(c, 0, -1));
res |= dfs(offset(c, 1, 0));
res |= dfs(offset(c, 0, 1));
return res;
};
let res = dfs(c);
if (olist.length === 1) { templist2.push(olist[0]); }
if (!res && n + qnum < list.length) { return true; }
return false;
})) { return; };
list.forEach(c => {
if (apl.get(c) !== "UNK" && apl.get(c) !== cst.get(c)) { apl.set(c, "AMB"); }
if (apl.get(c) === "UNK") { apl.set(c, cst.get(c)); }
});
surlist.forEach(c => {
if (templist2.includes(c)) { return; }
let templist = [offset(c, -1, 0), offset(c, 0, -1), offset(c, 1, 0), offset(c, 0, 1)];
if (templist.some(c => !c.isnull && c.room === room && cst.get(c) === "BLK")) { return; }
apl.set(c, "AMB");
});
return;
}
if (cst.get(list[i]) !== "UNK") { dfs(i + 1, blkcnt); return; }
sitcnt++;
let templist = [offset(list[i], -1, 0), offset(list[i], 0, -1), offset(list[i], 1, 0), offset(list[i], 0, 1)];
if (blkcnt < qnum && !templist.some(c => isBlack(c) || cst.has(c) && cst.get(c) === "BLK")) {
cst.set(list[i], "BLK");
dfs(i + 1, blkcnt + 1);
cst.set(list[i], "UNK");
}
cst.set(list[i], "GRN");
dfs(i + 1, blkcnt);
cst.set(list[i], "UNK");
};
dfs(0, list.filter(c => isBlack(c)).length);
if (sitcnt > MAXSIT) { continue; }
list.forEach(c => {
if (apl.get(c) === "BLK") {
add_black(c);
}
if (apl.get(c) === "GRN") {
add_green(c);
}
});
surlist.forEach(c => {
if (apl.get(c) === "GRN") {
add_green(c);
}
});
}
}
function AkariAssist() {
let isEmpty = c => !c.isnull && c.qnum === CQNUM.none && c.qans !== CQANS.light && c.qsub !== CQSUB.dot;
let isNotLight = c => c.isnull || c.qnum !== CQNUM.none || c.qsub === CQSUB.dot
let add_light = function (c) { add_black(c, true); };
forEachCell(cell => {
let emptycnt = 0;
let lightcnt = 0;
// add dot where lighted
if (cell.qlight && cell.qans !== CQANS.light) {
add_dot(cell);
}
// only one place can light
let emptycellList = [];
if (cell.qnum === CQNUM.none && !cell.qlight) {
if (cell.qsub !== CQSUB.dot) {
emptycellList.push(cell);
}
for (let d = 0; d < 4; d++) {
let pcell = dir(cell.adjacent, d);
while (!pcell.isnull && pcell.qnum === CQNUM.none) {
emptycellList.push(pcell);
pcell = dir(pcell.adjacent, d);
}
}
emptycellList = emptycellList.filter(c => c.qsub !== CQSUB.dot);
if (emptycellList.length === 1) {
add_light(emptycellList[0]);
}
}
// only two cells can lit up this cell
if (cell.qsub === CQSUB.dot && !cell.qlight && emptycellList.length === 2) {
let [ec1, ec2] = emptycellList;
if (ec1.bx !== ec2.bx && ec1.by !== ec2.by) {
if (ec1.bx === cell.bx) { [ec1, ec2] = [ec2, ec1]; }
let oc = board.getc(ec1.bx, ec2.by);
let f = true;
for (let i = cell.bx; i !== ec1.bx; i += (ec1.bx > cell.bx ? 1 : -1)) {
f &= board.getc(i, ec2.by).qnum === CQNUM.none;
}
for (let i = cell.by; i !== ec2.by; i += (ec2.by > cell.by ? 1 : -1)) {
f &= board.getc(ec1.bx, i).qnum === CQNUM.none;
}
if (f && oc.qnum === CQNUM.none) {
add_dot(oc);
}
}
}
fourside(c => {
if (!c.isnull && c.qnum === CQNUM.none && c.qsub !== CQSUB.dot && c.qans !== CQANS.light) { emptycnt++; }
lightcnt += (c.qans === CQANS.light);
}, cell.adjacent);
if (cell.qnum >= 0) {
// finished clue
if (cell.qnum === lightcnt) {
fourside(add_dot, cell.adjacent);
}
// finish clue
if (cell.qnum === emptycnt + lightcnt) {
fourside(add_light, cell.adjacent);
}
// dot at corner
if (cell.qnum - lightcnt + 1 === emptycnt) {
for (let d = 0; d < 4; d++) {
if (isEmpty(offset(cell, 0, 1, d)) && isEmpty(offset(cell, 1, 0, d)) && isEmpty(offset(cell, 1, 1, d))) {
add_dot(offset(cell, 1, 1, d));
}
}
}
}
for (let d = 0; d < 4; d++) {
//
// 22 => ●22●
//
if (cell.qnum === 2 && offset(cell, 1, 0, d).qnum === 2) {
add_light(offset(cell, -1, 0, d));
add_light(offset(cell, 2, 0, d));
}
//
// 21· => ●21·
//
if (cell.qnum === 2 && offset(cell, 1, 0, d).qnum === 1 && isNotLight(offset(cell, 2, 0, d))) {
add_light(offset(cell, -1, 0, d));
}
// ●
// 3 => ●3
// 1 1·
// ·
if (cell.qnum === 3 && offset(cell, 1, 1, d).qnum === 1) {
add_light(offset(cell, -1, 0, d));
add_light(offset(cell, 0, -1, d));
add_dot(offset(cell, 1, 2, d));
add_dot(offset(cell, 2, 1, d));
}
// ·
// 2 => 2
// 1 1
//
if (cell.qnum === 2 && offset(cell, 1, 1, d).qnum === 1) {
add_dot(offset(cell, -1, -1, d));
}
// ●
// ·2 => ·2
// 1 1·
// ·
if (cell.qnum === 2 && offset(cell, 1, 1, d).qnum === 1 &&
(isNotLight(offset(cell, -1, 0, d)) || isNotLight(offset(cell, 0, -1, d)))) {
add_light(offset(cell, -1, 0, d));
add_light(offset(cell, 0, -1, d));
add_dot(offset(cell, 1, 2, d));
add_dot(offset(cell, 2, 1, d));
}
// ·
// 1 => ·1
// 1· 1·
// · ·
if (cell.qnum === 1 && offset(cell, 1, 1, d).qnum === 1 &&
isNotLight(offset(cell, 1, 2, d)) && isNotLight(offset(cell, 2, 1, d))) {
add_dot(offset(cell, -1, 0, d));
add_dot(offset(cell, 0, -1, d));
}
}
});
}
function MasyuAssist() {
SingleLoopInCell({
isPass: c => c.qnum !== CQNUM.none,
});
let isBlack = c => !c.isnull && c.qnum === CQNUM.bcir;
let isWhite = c => !c.isnull && c.qnum === CQNUM.wcir;
let isPathable = b => !b.isnull && b.qsub !== BQSUB.cross;
forEachCell(cell => {
for (let d = 0; d < 4; d++) {
if (isWhite(cell) && offset(cell, .5, .5, d).qsub !== 0) {
add_inout(offset(cell, -.5, -.5, d), offset(cell, .5, .5, d).qsub ^ 1);
}
// +×+ +×+
// ● ● -> ● ●
// + + +×+
if (isBlack(offset(cell, -1, 0, d)) && isBlack(offset(cell, 1, 0, d)) && !isPathable(offset(cell, 0, -.5, d))) {
add_cross(offset(cell, 0, .5, d));
}
// + + +×+
// ━○ -> ━○━
// + + +×+
if (isWhite(cell) && (offset(cell, -.5, 0, d).line || !isPathable(offset(cell, 0, -.5, d)))) {
add_line(offset(cell, -.5, 0, d));
add_line(offset(cell, +.5, 0, d));
add_cross(offset(cell, 0, -.5, d));
add_cross(offset(cell, 0, +.5, d));
}
// + + + + + + + +
// ━━━○━╸ -> ━━━○━╸×
// + + + + + + + +
if (isWhite(cell) && offset(cell, -.5, 0, d).line && offset(cell, -1.5, 0, d).line) {
add_cross(offset(cell, 1.5, 0, d));
}
// + + + + + +┃+ +
// ━╸ ○ ○ -> ━╸×○×○
// + + + + + +┃+ +
if (isWhite(cell) &&
(offset(cell, -1.5, 0, d).line || isWhite(offset(cell, -1, 0, d))) &&
(offset(cell, +1.5, 0, d).line || isWhite(offset(cell, +1, 0, d)))) {
add_cross(offset(cell, -.5, 0, d));
add_cross(offset(cell, +.5, 0, d));
add_line(offset(cell, 0, -.5, d));
add_line(offset(cell, 0, +.5, d));
}
// + + + : + + + : + +┃+ : + + + : + + + + + +
// ━● : ●× : ● ╹ : ● ● : ● × -> ━●×
// + + + ; + + + ; + + + ; + + + ; + + + + + +
if (isBlack(cell) && (offset(cell, -.5, 0, d).line || !isPathable(offset(cell, .5, 0, d)) ||
offset(cell, 1, -.5, d).line || offset(cell, 1, .5, d).line ||
isBlack(offset(cell, 1, 0, d)) || !isPathable(offset(cell, 1.5, 0, d)))) {
add_cross(offset(cell, .5, 0, d));
add_line(offset(cell, -.5, 0, d));
}
// + + + + + +
// ●━╸ -> ●━━━
// + + + + + +
if (isBlack(cell) && offset(cell, .5, 0, d).line) {
add_line(offset(cell, 1.5, 0, d));
}
// + + + + + + + + + +
// ● ○ ○ -> ━● ○ ○
// + + + + + + + + + +
if (isBlack(cell) && isWhite(offset(cell, 2, 0, d)) && isWhite(offset(cell, 3, 0, d))) {
add_line(offset(cell, -.5, 0, d));
}
// + + + + + + + +
// ○ ○ ○ ○
// + + + + -> + + + +
// ● ●
// + + + + + +┃+ +
if (isBlack(cell) && isWhite(offset(cell, -1, -1, d)) && isWhite(offset(cell, 1, -1, d))) {
add_line(offset(cell, 0, .5, d));
}
}
});
}
function SimpleloopAssist() {
SingleLoopInCell({
isPassable: c => c.ques !== CQUES.bwall,
isPass: c => c.ques !== CQUES.bwall,
});
}
function KoburinAssist() {
SingleLoopInCell({
isPassable: c => c.qnum === CQNUM.none,
isPass: c => c.qsub === CQSUB.dot,
add_notpass: c => add_black(c, true),
add_pass: add_dot,
});
let isPathable = c => !c.isnull && c.qnum === CQNUM.none && c.qans !== CQANS.black;
let isEmpty = c => !c.isnull && c.qnum === CQNUM.none && c.qans !== CQANS.black && c.qsub !== CQSUB.dot && c.lcnt === 0;
forEachCell(cell => {
// check clue
if (cell.qnum >= 0) {
let list = adjlist(cell.adjacent);
if (list.filter(c => isBlack(c)).length === cell.qnum) {
list.forEach(c => add_dot(c));
}
if (list.filter(c => !c.isnull && c.qnum === CQNUM.none && c.qsub !== CQSUB.dot).length === cell.qnum) {
list.forEach(c => add_black(c, true));
}
}
// add cross
if (cell.qnum !== CQNUM.none) {
fourside(add_cross, cell.adjborder);
for (let d = 0; d < 4; d++) {
// · ·
// 3 -> 3
// · ·
if (cell.qnum === 3) {
add_dot(offset(cell, -1, -1));
add_dot(offset(cell, -1, +1));
add_dot(offset(cell, +1, -1));
add_dot(offset(cell, +1, +1));
}
// █
// 3 -> █3
// █ █
if (cell.qnum === 3 && ((b => b.isnull || b.qsub === BQSUB.cross)(offset(cell, 1.5, 1, d)) ||
(c => c.isnull || isBlack(c) || c.qnum !== CQNUM.none)(offset(cell, 2, 1, d)))) {
add_black(offset(cell, -1, 0, d), true);
add_black(offset(cell, 0, -1, d), true);
}
if (cell.qnum === 3 && ((b => b.isnull || b.qsub === BQSUB.cross)(offset(cell, 1.5, -1, d)) ||
(c => c.isnull || isBlack(c) || c.qnum !== CQNUM.none)(offset(cell, 2, -1, d)))) {
add_black(offset(cell, -1, 0, d), true);
add_black(offset(cell, 0, 1, d), true);
}
// ·
// 2 -> 2
// █ █
if (cell.qnum === 2 && ((b => b.isnull || b.qsub === BQSUB.cross)(offset(cell, 1.5, 1, d)) ||
(c => c.isnull || isBlack(c) || c.qnum !== CQNUM.none)(offset(cell, 2, 1, d)))) {
add_dot(offset(cell, -1, -1, d));
}
if (cell.qnum === 2 && ((b => b.isnull || b.qsub === BQSUB.cross)(offset(cell, 1.5, -1, d)) ||
(c => c.isnull || isBlack(c) || c.qnum !== CQNUM.none)(offset(cell, 2, -1, d)))) {
add_dot(offset(cell, -1, 1, d));
}
}
return;
}
// add dot around black
if (isBlack(cell)) {
fourside(add_cross, cell.adjborder);
fourside(add_dot, cell.adjacent);
return;
}
let emptycnt = 0;
let linecnt = 0;
fourside((b, c) => {
if (isPathable(c) && b.qsub !== BQSUB.cross) { emptycnt++; }
linecnt += b.line;
}, cell.adjborder, cell.adjacent);
// no branch
if (linecnt === 2) {
fourside(add_cross, cell.adjborder);
}
// no deadend
if (emptycnt <= 1) {
add_black(cell, true);
fourside(add_cross, cell.adjborder);
fourside(add_dot, cell.adjacent);
}
// 2 degree cell no deadend
if (emptycnt === 2) {
fourside((b, c) => {
if (!isPathable(c) || b.qsub === BQSUB.cross) { return; }
add_dot(c);
}, cell.adjborder, cell.adjacent);
}
});
}
function YajilinAssist() {
SingleLoopInCell({
isPassable: c => !c.isnull && c.qnum === CQNUM.none && !isBlack(c),
isPass: c => c.qsub === CQSUB.dot,
add_notpass: c => add_black(c, true),
add_pass: add_dot,
});
let isPassable = c => !c.isnull && c.qnum === CQNUM.none && !isBlack(c);
let isEmpty = c => !c.isnull && c.qnum === CQNUM.none && !isBlack(c) && c.qsub !== CQSUB.dot && c.lcnt === 0;
forEachCell(cell => {
// check clue
if (cell.qnum >= 0 && cell.qdir !== QDIR.none) {
let d = qdirRemap(cell.qdir);
let qnum = cell.qnum;
let list = [];
let dn = 0, lc = null;
while ((c => !c.isnull && (c.qnum < 0 || c.qdir !== cell.qdir))(offset(cell, 0, -dn - 1, d))) {
dn++;
let c = offset(cell, 0, -dn, d);
if (isBlack(c)) { qnum--; }
if (!isEmpty(c)) { continue; }
if (lc === null) {
lc = c;
continue;
}
if (lc === offset(c, 0, 1, d)) {
list.push([lc, c]);
lc = null;
} else {
list.push([lc]);
lc = c;
}
}
if (lc !== null) { list.push([lc]); }
if ((c => c.qnum >= 0 && c.qdir === cell.qdir)(offset(cell, 0, -dn - 1, d))) {
qnum -= offset(cell, 0, -dn - 1, d).qnum;
}
if (list.length === qnum) {
list.forEach(p => {
if (p.length === 1) {
add_black(p[0]);
}
if (p.length === 2) {
add_cross(offset(p[0], 0, -.5, d));
}
});
}
if (qnum === 0) {
list.forEach(p => {
add_dot(p[0]);
if (p.length === 2) {
add_dot(p[1]);
}
});
}
}
// add cross
if (cell.qnum !== CQNUM.none) {
fourside(add_cross, cell.adjborder);
return;
}
// add dot around black
if (isBlack(cell)) {
fourside(add_cross, cell.adjborder);
fourside(add_dot, cell.adjacent);
return;
}
let emptycnt = 0;
let linecnt = 0;
fourside((nb, nc) => {
if (isPassable(nc) && nb.qsub !== BQSUB.cross) { emptycnt++; }
linecnt += nb.line;
}, cell.adjborder, cell.adjacent);
// no branch
if (linecnt === 2) {
fourside(add_cross, cell.adjborder);
}
// no deadend
if (emptycnt <= 1) {
add_black(cell);
fourside(add_cross, cell.adjborder);
fourside(add_dot, cell.adjacent);
}
// 2 degree cell no deadend
if (emptycnt === 2) {
fourside((nb, nc) => {
if (!isPassable(nc) || nb.qsub === BQSUB.cross) { return; }
add_dot(nc);
}, cell.adjborder, cell.adjacent);
}
// prevent multiple loops
let list = adjlist(cell.adjborder, cell.adjacent);
list = list.filter(([b, c]) => isPassable(c) && b.qsub !== BQSUB.cross);
if (list.length === 0 || list[0][1].path !== undefined && list[0][1].path !== null && list.every(([b, c]) => c.path === list[0][1].path) && board.linegraph.components.length > 1) {
add_black(cell);
}
for (let d = 0; d < 4; d++) {
if (!isPassable(offset(cell, -1, 0, d))) { continue; }
if (!isPassable(offset(cell, 0, -1, d))) { continue; }
if (isPassable(offset(cell, -2, 0, d)) && offset(cell, -1.5, 0, d).qsub !== BQSUB.cross) { continue; }
if (isPassable(offset(cell, 0, -2, d)) && offset(cell, 0, -1.5, d).qsub !== BQSUB.cross) { continue; }
if (!offset(cell, -1, -1.5, d).line && !offset(cell, -1.5, -1, d).line) { continue; }
add_dot(cell);
}
});
}
function SlitherlinkAssist() {
let add_bg_color = function (c, color) {
if (c === undefined || c.isnull || c.qsub !== CQSUB.none || c.qsub === color) { return; }
if (step && flg) { return; }
flg = true;
c.setQsub(color);
c.draw();
}
let add_bg_inner_color = function (c) { add_bg_color(c, CQSUB.green); }
let add_bg_outer_color = function (c) { add_bg_color(c, CQSUB.yellow); }
let isCross = b => b.isnull || b.qsub === BQSUB.cross;
let isLine = b => b.line;
let isYellow = c => c.isnull || c.qsub === CQSUB.yellow;
let add_oneline = function (b1, b2) {
if (b1.qsub === BQSUB.cross || b1.isnull || b2.line) {
add_cross(b1);
add_line(b2);
}
if (b2.qsub === BQSUB.cross || b2.isnull || b1.line) {
add_cross(b2);
add_line(b1);
}
}
CellConnected({
isShaded: isGreen,
isUnshaded: c => isYellow(c) || c.qsub === CQSUB.none && c.qnum === 3,
add_shaded: add_bg_inner_color,
add_unshaded: add_bg_outer_color,
isLinked: (c, nb, nc) => nb.qsub === BQSUB.cross,
isNotPassable: (c, nb, nc) => nb.line,
});
CellConnected({
isShaded: isYellow,
isUnshaded: c => isGreen(c) || c.qsub === CQSUB.none && c.qnum === 3,
add_shaded: add_bg_outer_color,
add_unshaded: add_bg_inner_color,
isLinked: (c, nb, nc) => nb.qsub === BQSUB.cross,
isNotPassable: (c, nb, nc) => nb.line,
OutsideAsShaded: true,
});
NoCheckerCell({
isShaded: isGreen,
isUnshaded: isYellow,
add_shaded: add_bg_inner_color,
add_unshaded: add_bg_outer_color,
});
// use qsub for each cross to track what it can be
forEachCross(cross => {
if (cross.qsub === 0 || cross.qsub.length === 0) {
let qsub = [[]];
let list = adjlist(cross.adjborder);
for (let i = 0; i < 4; i++) {
for (let j = i + 1; j < 4; j++) {
qsub.push([list[i], list[j]]);
}
}
cross.setQsub(qsub);
}
cross.setQsub(cross.qsub.filter(s => s.every(b => !b.isnull && b.qsub !== BQSUB.cross)));
fourside(b => {
if (b.line) { cross.setQsub(cross.qsub.filter(s => s.includes(b))); }
if (cross.qsub.every(s => s.includes(b))) { add_line(b); }
if (cross.qsub.every(s => !s.includes(b))) { add_cross(b); }
}, cross.adjborder);
});
// counting this due to some small loop jokes
let twocnt = 0;
let threecnt = 0;
forEachCell(cell => {
twocnt += cell.qnum === 2;
threecnt += cell.qnum === 3;
});
forEachCell(cell => {
let blist = adjlist(cell.adjborder);
if (blist.filter(b => b.line).length === cell.qnum) {
blist.forEach(b => add_cross(b));
}
if (blist.filter(b => b.qsub !== BQSUB.cross).length === cell.qnum) {
blist.forEach(b => add_line(b));
}
// deduce single clue
if (cell.qnum >= 0) {
let list = [offset(cell, -.5, -.5), offset(cell, .5, -.5), offset(cell, -.5, .5), offset(cell, .5, .5)];
let sum = list.map(cr => cr.qsub.length).reduce((a, b) => a + b, 0);
let comblist = [];
list[0].qsub.forEach(q0 => {
if (adjlist(cell.adjborder).filter(b => [].concat(q0).includes(b)).length > cell.qnum) { return; }
if (2 - adjlist(cell.adjborder).filter(b => [].concat(q0).includes(b)).length > 4 - cell.qnum) { return; }
list[1].qsub.forEach(q1 => {
if (adjlist(cell.adjborder).filter(b => [].concat(q0, q1).includes(b)).length > cell.qnum) { return; }
if (3 - adjlist(cell.adjborder).filter(b => [].concat(q0, q1).includes(b)).length > 4 - cell.qnum) { return; }
if (q0.includes(offset(cell, 0, -.5)) ^ q1.includes(offset(cell, 0, -.5))) { return; }
list[2].qsub.forEach(q2 => {
if (q0.includes(offset(cell, -.5, 0)) ^ q2.includes(offset(cell, -.5, 0))) { return; }
list[3].qsub.forEach(q3 => {
if (q2.includes(offset(cell, 0, .5)) ^ q3.includes(offset(cell, 0, .5))) { return; }
if (q1.includes(offset(cell, .5, 0)) ^ q3.includes(offset(cell, .5, 0))) { return; }
if (adjlist(cell.adjborder).filter(b => [].concat(q0, q1, q2, q3).includes(b)).length !== cell.qnum) { return; }
comblist.push([q0, q1, q2, q3]);
});
});
});
});
list.forEach((cr, i) => { cr.setQsub(cr.qsub.filter(s => comblist.some(comb => comb[i] === s))); });
if (list.map(cr => cr.qsub.length).reduce((a, b) => a + b, 0) < sum) { flg2 = true; }
}
for (let d = 0; d < 4; d++) {
// ×
// · · · ╻ ╻ ╻
// 3 3 -> ┃3┃3┃
// · · · ╹ ╹ ╹
// ×
if (cell.qnum === 3 && (threecnt > 2 || twocnt > 0) &&
offset(cell, 1, 0, d).qnum === 3) {
add_line(offset(cell, -.5, 0, d));
add_line(offset(cell, .5, 0, d));
add_line(offset(cell, 1.5, 0, d));
add_cross(offset(cell, .5, -1, d));
add_cross(offset(cell, .5, 1, d));
let fn = function (c1, c2) {
if (c1.isnull || c1.qsub === CQSUB.yellow) {
add_bg_color(c2, CQSUB.green);
}
if (c1.qsub === CQSUB.green) {
add_bg_color(c2, CQSUB.yellow);
}
};
fn(offset(cell, 0, 1, d), offset(cell, 0, -1, d));
fn(offset(cell, 0, -1, d), offset(cell, 0, 1, d));
}
// ×
// · · · · · ╻
// ×2 3 -> ×2 3┃
// · · · · · ╹
// ×
if (cell.qnum === 2 && offset(cell, 1, 0, d).qnum === 3) {
add_line(offset(cell, 1.5, 0, d));
add_cross(offset(cell, .5, -1, d));
add_cross(offset(cell, .5, 1, d));
}
}
});
// connectivity at cross
for (let i = 0; i < board.cross.length; i++) {
let cross = board.cross[i];
let blist = adjlist(cross.adjborder);
let linecnt = blist.filter(b => b.line).length;
let crosscnt = blist.filter(b => b.qsub === BQSUB.cross).length;
if (linecnt === 2 || crosscnt === 3) {
blist.forEach(b => add_cross(b));
}
if (linecnt === 1 && crosscnt === 2) {
blist.forEach(b => add_line(b));
}
}
// avoid forming multiple loop
for (let i = 0; i < board.border.length; i++) {
let border = board.border[i];
if (border.qsub === BQSUB.cross) { continue; }
if (border.line) { continue; }
let cr1 = border.sidecross[0];
let cr2 = border.sidecross[1];
if (cr1.path !== null && cr1.path === cr2.path && board.linegraph.components.length > 1) {
add_cross(border);
}
}
// deduce color
forEachCell(cell => {
// neighbor color
{
fourside((b, c) => {
if (!c.isnull && cell.qsub !== CQSUB.none && cell.qsub === c.qsub) {
add_cross(b);
}
if (cell.qsub === CQSUB.yellow && c.isnull) {
add_cross(b);
}
if (!c.isnull && cell.qsub !== CQSUB.none && c.qsub !== CQSUB.none && cell.qsub !== c.qsub) {
add_line(b);
}
if (cell.qsub === CQSUB.green && c.isnull) {
add_line(b);
}
}, cell.adjborder, cell.adjacent);
}
// deduce neighbor color
if (cell.qsub === CQSUB.none) {
fourside((b, c) => {
if (b.line && c.isnull) {
add_bg_inner_color(cell);
}
if (b.qsub === BQSUB.cross && c.isnull) {
add_bg_outer_color(cell);
}
if (b.line && !c.isnull && c.qsub !== CQSUB.none) {
add_bg_color(cell, CQSUB.green + CQSUB.yellow - c.qsub);
}
if (b.qsub === BQSUB.cross && !c.isnull && c.qsub !== CQSUB.none) {
add_bg_color(cell, c.qsub);
}
}, cell.adjborder, cell.adjacent);
}
{
let innercnt = adjlist(cell.adjacent).filter(c => isGreen(c)).length;
let outercnt = adjlist(cell.adjacent).filter(c => isYellow(c)).length;
// surrounded by green
if (innercnt === 4) {
add_bg_inner_color(cell);
}
// number and color deduce
if (cell.qnum >= 0) {
if (cell.qnum < innercnt || 4 - cell.qnum < outercnt) {
add_bg_inner_color(cell);
}
if (cell.qnum < outercnt || 4 - cell.qnum < innercnt) {
add_bg_outer_color(cell);
}
if (isGreen(cell) && cell.qnum === outercnt) {
fourside(add_bg_inner_color, cell.adjacent);
}
if (isYellow(cell) && cell.qnum === innercnt) {
fourside(add_bg_outer_color, cell.adjacent);
}
if (isYellow(cell) && cell.qnum === 4 - outercnt) {
fourside(add_bg_inner_color, cell.adjacent);
}
if (isGreen(cell) && cell.qnum === 4 - innercnt) {
fourside(add_bg_outer_color, cell.adjacent);
}
if (cell.qnum === 2 && outercnt === 2) {
fourside(add_bg_inner_color, cell.adjacent);
}
if (cell.qnum === 2 && innercnt === 2) {
fourside(add_bg_outer_color, cell.adjacent);
}
// 2 different color around 1 or 3
if ((cell.qnum === 1 || cell.qnum === 3) && innercnt === 1 && outercnt === 1) {
fourside((c, d) => {
if (!c.isnull && c.qsub === CQSUB.none) {
if (cell.qnum === 1) { add_cross(d); }
if (cell.qnum === 3) { add_line(d); }
}
}, cell.adjacent, cell.adjborder);
}
// same diagonal color as 3
if (cell.qnum === 3 && cell.qsub !== CQSUB.none) {
for (let d = 0; d < 4; d++) {
if (!dir(cell.adjacent, d).isnull && !dir(cell.adjacent, d + 1).isnull && dir(dir(cell.adjacent, d).adjacent, d + 1).qsub === cell.qsub) {
add_line(dir(cell.adjborder, d + 2));
add_line(dir(cell.adjborder, d + 3));
}
}
}
if (cell.qnum === 2) {
// ×
// ×· ·
// 2 A
// · ·a
// Bb
for (let d = 0; d < 4; d++) {
let b1 = offset(cell, -.5, -1, d);
let b2 = offset(cell, -1, -.5, d);
if (!(b1.isnull || b1.qsub === BQSUB.cross)) { continue; }
if (!(b2.isnull || b2.qsub === BQSUB.cross)) { continue; }
let c1 = dir(cell.adjacent, d + 2);
let c2 = dir(cell.adjacent, d + 3);
// A=B
add_bg_color(c1, (c2.isnull ? CQSUB.yellow : c2.qsub));
add_bg_color(c2, (c1.isnull ? CQSUB.yellow : c1.qsub));
}
}
}
}
});
}
