| 1 | import ChessRules from "/base_rules.js"; |
| 2 | import PiPo from "/utils/PiPo.js"; |
| 3 | import Move from "/utils/Move.js"; |
| 4 | |
| 5 | export default class HexRules extends ChessRules { |
| 6 | |
| 7 | static get Options() { |
| 8 | return { |
| 9 | input: [ |
| 10 | { |
| 11 | label: "Board size", |
| 12 | variable: "bsize", |
| 13 | type: "number", |
| 14 | defaut: 11 |
| 15 | }, |
| 16 | { |
| 17 | label: "Swap", |
| 18 | variable: "swap", |
| 19 | type: "checkbox", |
| 20 | defaut: true |
| 21 | } |
| 22 | ] |
| 23 | }; |
| 24 | } |
| 25 | |
| 26 | get hasFlags() { |
| 27 | return false; |
| 28 | } |
| 29 | get hasEnpassant() { |
| 30 | return false; |
| 31 | } |
| 32 | get hasReserve() { |
| 33 | return false; |
| 34 | } |
| 35 | |
| 36 | get noAnimate() { |
| 37 | return true; |
| 38 | } |
| 39 | |
| 40 | doClick(coords) { |
| 41 | if ( |
| 42 | this.playerColor != this.turn || |
| 43 | ( |
| 44 | this.board[coords.x][coords.y] != "" && |
| 45 | (!this.options["swap"] || this.movesCount >= 2) |
| 46 | ) |
| 47 | ) { |
| 48 | return null; |
| 49 | } |
| 50 | let res = new Move({ |
| 51 | start: {x: coords.x, y: coords.y}, |
| 52 | appear: [ |
| 53 | new PiPo({ |
| 54 | x: coords.x, |
| 55 | y: coords.y, |
| 56 | c: this.turn, |
| 57 | p: 'p' |
| 58 | }) |
| 59 | ], |
| 60 | vanish: [] |
| 61 | }); |
| 62 | if (this.board[coords.x][coords.y] != "") { |
| 63 | res.vanish.push( |
| 64 | new PiPo({ |
| 65 | x: coords.x, |
| 66 | y: coords.y, |
| 67 | c: C.GetOppCol(this.turn), |
| 68 | p: 'p' |
| 69 | }) |
| 70 | ); |
| 71 | } |
| 72 | return res; |
| 73 | } |
| 74 | |
| 75 | genRandInitFen() { |
| 76 | // NOTE: size.x == size.y (square boards) |
| 77 | const emptyCount = C.FenEmptySquares(this.size.x); |
| 78 | return (emptyCount + "/").repeat(this.size.x).slice(0, -1) + " w 0"; |
| 79 | } |
| 80 | |
| 81 | // TODO: enable vertical board (rotate?) |
| 82 | getSvgChessboard() { |
| 83 | // NOTE: with small margin seems nicer |
| 84 | let width = 173.2 * this.size.y + 173.2 * (this.size.y-1) / 2 + 30, |
| 85 | height = 50 + Math.floor(150 * this.size.x) + 30, |
| 86 | min_x = -86.6 - 15, |
| 87 | min_y = -100 - 15; |
| 88 | // if (this.size.ratio < 1) { |
| 89 | // [width, height] = [height, width]; |
| 90 | // [min_x, min_y] = [min_y, min_x]; |
| 91 | // } |
| 92 | let board = ` |
| 93 | <svg |
| 94 | viewBox="${min_x} ${min_y} ${width} ${height}" |
| 95 | class="chessboard_SVG"`; |
| 96 | // if (this.size.ratio < 1) |
| 97 | // board += ` transform="rotate(90 ${min_x} ${min_y})"` |
| 98 | board += `> |
| 99 | <defs> |
| 100 | <g id="hexa"> |
| 101 | <polygon |
| 102 | style="stroke:#000000;stroke-width:1" |
| 103 | points="0,-100.0 86.6,-50.0 86.6,50.0 0,100.0 -86.6,50.0 -86.6,-50.0" |
| 104 | /> |
| 105 | </g> |
| 106 | </defs>`; |
| 107 | board += "<g>"; |
| 108 | for (let i=0; i < this.size.x; i++) { |
| 109 | for (let j=0; j < this.size.y; j++) { |
| 110 | board += ` |
| 111 | <use |
| 112 | href="#hexa" |
| 113 | class="neutral-square" |
| 114 | id="${this.coordsToId({x: i, y: j})}" |
| 115 | x="${173.2*j + 86.6*i}" |
| 116 | y="${150*i}" |
| 117 | />`; |
| 118 | } |
| 119 | } |
| 120 | board += `</g><g style="fill:none;stroke-width:10">`; |
| 121 | // Goals: up/down/left/right |
| 122 | board += `<polyline style="stroke:red" points="` |
| 123 | for (let i=0; i<=2*this.size.y; i++) |
| 124 | board += ((i-1)*86.6) + ',' + (i % 2 == 0 ? -50 : -100) + ' '; |
| 125 | board += `"/><polyline style="stroke:red" points="`; |
| 126 | for (let i=1; i<=2*this.size.y; i++) { |
| 127 | const jShift = 200 * Math.floor((this.size.y+1)/2) + |
| 128 | 100 * (Math.floor(this.size.y/2) - 1) + |
| 129 | (i % 2 == 0 ? -50 : 0) + |
| 130 | (this.size.y % 2 == 0 ? 50 : 0); |
| 131 | board += ((i+this.size.y-2)*86.6) + ',' + jShift + ' '; |
| 132 | } |
| 133 | board += `"/><polyline style="stroke:blue" points="`; |
| 134 | let sumY = -100; |
| 135 | for (let i=0; i<=2*this.size.x; i++) { |
| 136 | board += ((Math.floor(i/2)-1) * 86.6) + ',' + |
| 137 | (sumY += (i % 2 == 0 ? 50 : 100)) + ' '; |
| 138 | } |
| 139 | board += `"/><polyline style="stroke:blue" points="`; |
| 140 | sumY = -100; |
| 141 | for (let i=0; i<2*this.size.x; i++) { |
| 142 | board += (173.2*this.size.x + (Math.floor(i/2)-1) * 86.6) + ',' + |
| 143 | (sumY += (i % 2 == 0 ? 50 : 100)) + ' '; |
| 144 | } |
| 145 | board += `"/></g></svg>`; |
| 146 | return board; |
| 147 | } |
| 148 | |
| 149 | setupPieces() { |
| 150 | for (let i=0; i<this.size.x; i++) { |
| 151 | for (let j=0; j<this.size.y; j++) { |
| 152 | if (this.board[i][j] != "") { |
| 153 | const sqColor = (this.getColor(i, j) == 'w' ? "white" : "black"); |
| 154 | const elt = document.getElementById(this.coordsToId({x: i, y: j})); |
| 155 | elt.classList.remove("neutral-square"); |
| 156 | elt.classList.add("bg-" + sqColor); |
| 157 | } |
| 158 | } |
| 159 | } |
| 160 | } |
| 161 | |
| 162 | initMouseEvents() { |
| 163 | const mousedown = (e) => { |
| 164 | if (e.touches && e.touches.length > 1) |
| 165 | e.preventDefault(); |
| 166 | const cd = this.idToCoords(e.target.id); |
| 167 | if (cd) { |
| 168 | const move = this.doClick(cd); |
| 169 | if (move) |
| 170 | this.playPlusVisual(move); |
| 171 | } |
| 172 | }; |
| 173 | |
| 174 | if ('onmousedown' in window) |
| 175 | document.addEventListener("mousedown", mousedown); |
| 176 | if ('ontouchstart' in window) |
| 177 | document.addEventListener("touchstart", mousedown, {passive: false}); |
| 178 | } |
| 179 | |
| 180 | // TODO: enable rotation |
| 181 | get size() { |
| 182 | const baseRatio = 1.619191; // 2801.2 / 1730, "widescreen" |
| 183 | const rotate = false; //window.innerWidth < window.innerHeight; //"vertical screen" |
| 184 | return { |
| 185 | x: this.options["bsize"], |
| 186 | y: this.options["bsize"], |
| 187 | ratio: (rotate ? 1 / baseRatio : baseRatio) |
| 188 | }; |
| 189 | } |
| 190 | |
| 191 | play(move) { |
| 192 | this.playOnBoard(move); |
| 193 | this.movesCount++; |
| 194 | this.turn = C.GetOppCol(this.turn); |
| 195 | } |
| 196 | |
| 197 | getCurrentScore(move) { |
| 198 | const oppCol = C.GetOppCol(this.turn); |
| 199 | // Search for connecting path of opp color: |
| 200 | let explored = {}, component; |
| 201 | let min, max; |
| 202 | const getIndex = (x, y) => x + "." + y; |
| 203 | // Explore one connected component: |
| 204 | const neighborsSearch = ([x, y], index) => { |
| 205 | // Let's say "white" connects on x and "black" on y |
| 206 | const z = (oppCol == 'w' ? x : y); |
| 207 | if (z < min) |
| 208 | min = z; |
| 209 | if (z > max) |
| 210 | max = z; |
| 211 | explored[index] = true; |
| 212 | component[index] = true; |
| 213 | for (let [dx, dy] of super.pieces()['k'].moves[0].steps) { |
| 214 | const [nx, ny] = [x + dx, y + dy]; |
| 215 | const nidx = getIndex(nx, ny); |
| 216 | if ( |
| 217 | this.onBoard(nx, ny) && |
| 218 | this.getColor(nx, ny) == oppCol && |
| 219 | !component[nidx] |
| 220 | ) { |
| 221 | neighborsSearch([nx, ny], nidx); |
| 222 | } |
| 223 | } |
| 224 | }; |
| 225 | // Explore all components: |
| 226 | for (let i=0; i<this.size.x; i++) { |
| 227 | for (let j=0; j<this.size.y; j++) { |
| 228 | const index = getIndex(i, j); |
| 229 | if (this.getColor(i, j) == oppCol && !explored[index]) { |
| 230 | component = {}; |
| 231 | [min, max] = [this.size.x, 0]; |
| 232 | neighborsSearch([i, j], index); |
| 233 | if (max - min == this.size.x - 1) |
| 234 | return (oppCol == "w" ? "1-0" : "0-1"); |
| 235 | } |
| 236 | } |
| 237 | } |
| 238 | return "*"; |
| 239 | } |
| 240 | |
| 241 | playVisual(move) { |
| 242 | move.vanish.forEach(v => { |
| 243 | let elt = document.getElementById(this.coordsToId({x: v.x, y: v.y})); |
| 244 | elt.classList.remove("bg-" + (v.c == 'w' ? "white" : "black")); |
| 245 | }); |
| 246 | move.appear.forEach(a => { |
| 247 | let elt = document.getElementById(this.coordsToId({x: a.x, y: a.y})); |
| 248 | elt.classList.add("bg-" + (a.c == 'w' ? "white" : "black")); |
| 249 | }); |
| 250 | } |
| 251 | |
| 252 | }; |