A few fixes (style, preferences application)
[vchess.git] / public / javascripts / components / game.js
CommitLineData
92342261 1// Game logic on a variant page
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2Vue.component('my-game', {
3 data: function() {
4 return {
5 vr: null, //object to check moves, store them, FEN..
6 mycolor: "w",
7 possibleMoves: [], //filled after each valid click/dragstart
92342261 8 choices: [], //promotion pieces, or checkered captures... (as moves)
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9 start: {}, //pixels coordinates + id of starting square (click or drag)
10 selectedPiece: null, //moving piece (or clicked piece)
92342261 11 conn: null, //socket connection
dfb4afc1 12 score: "*", //'*' means 'unfinished'
2748531f 13 mode: "idle", //human, friend, computer or idle (when not playing)
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14 oppid: "", //opponent ID in case of HH game
15 oppConnected: false,
186516b8 16 seek: false,
762b7c9c 17 fenStart: "",
4b5fe306 18 incheck: [],
3840e240 19 pgnTxt: "",
88af03d2 20 hints: (getCookie("hints") === "1" ? true : false),
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21 color: getCookie("color", "lichess"), //lichess, chesscom or chesstempo
22 // sound level: 0 = no sound, 1 = sound only on newgame, 2 = always
23 sound: getCookie("sound", "2"),
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24 };
25 },
26 render(h) {
c94bc812 27 const [sizeX,sizeY] = VariantRules.size;
0bf75837 28 const smallScreen = (screen.width <= 420);
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29 // Precompute hints squares to facilitate rendering
30 let hintSquares = doubleArray(sizeX, sizeY, false);
31 this.possibleMoves.forEach(m => { hintSquares[m.end.x][m.end.y] = true; });
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32 // Also precompute in-check squares
33 let incheckSq = doubleArray(sizeX, sizeY, false);
34 this.incheck.forEach(sq => { incheckSq[sq[0]][sq[1]] = true; });
1d184b4c 35 let elementArray = [];
2748531f 36 let actionArray = [];
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37 actionArray.push(
38 h('button',
39 {
40 on: { click: this.clickGameSeek },
41 attrs: { "aria-label": 'New online game' },
42 'class': {
43 "tooltip": true,
44 "bottom": true, //display below
45 "seek": this.seek,
46 "playing": this.mode == "human",
b8a0ec4a 47 "small": smallScreen,
1d184b4c 48 },
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49 },
50 [h('i', { 'class': { "material-icons": true } }, "accessibility")])
51 );
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52 if (["idle","computer"].includes(this.mode))
53 {
54 actionArray.push(
55 h('button',
1d184b4c 56 {
f3802fcd 57 on: { click: this.clickComputerGame },
1d184b4c 58 attrs: { "aria-label": 'New game VS computer' },
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59 'class': {
60 "tooltip":true,
0706ea91 61 "bottom": true,
2748531f 62 "playing": this.mode == "computer",
b8a0ec4a 63 "small": smallScreen,
186516b8 64 },
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65 },
66 [h('i', { 'class': { "material-icons": true } }, "computer")])
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67 );
68 }
69 if (["idle","friend"].includes(this.mode))
70 {
71 actionArray.push(
72 h('button',
73 {
74 on: { click: this.clickFriendGame },
75 attrs: { "aria-label": 'New IRL game' },
76 'class': {
77 "tooltip":true,
78 "bottom": true,
79 "playing": this.mode == "friend",
b8a0ec4a 80 "small": smallScreen,
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81 },
82 },
83 [h('i', { 'class': { "material-icons": true } }, "people")])
84 );
85 }
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86 if (!!this.vr)
87 {
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88 const square00 = document.getElementById("sq-0-0");
89 const squareWidth = !!square00
90 ? parseFloat(window.getComputedStyle(square00).width.slice(0,-2))
91 : 0;
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92 const settingsBtnElt = document.getElementById("settingsBtn");
93 const indicWidth = !!settingsBtnElt //-2 for border:
94 ? parseFloat(window.getComputedStyle(settingsBtnElt).height.slice(0,-2)) - 2
a897b421 95 : 37; //TODO: always 37?
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96 if (this.mode == "human")
97 {
98 let connectedIndic = h(
99 'div',
100 {
101 "class": {
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102 "topindicator": true,
103 "indic-left": true,
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104 "connected": this.oppConnected,
105 "disconnected": !this.oppConnected,
106 },
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107 style: {
108 "width": indicWidth + "px",
109 "height": indicWidth + "px",
110 },
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111 }
112 );
113 elementArray.push(connectedIndic);
114 }
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115 let turnIndic = h(
116 'div',
117 {
118 "class": {
119 "topindicator": true,
120 "indic-right": true,
121 "white-turn": this.vr.turn=="w",
122 "black-turn": this.vr.turn=="b",
123 },
124 style: {
125 "width": indicWidth + "px",
126 "height": indicWidth + "px",
127 },
128 }
129 );
130 elementArray.push(turnIndic);
88af03d2 131 let settingsBtn = h(
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132 'button',
133 {
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134 on: { click: this.showSettings },
135 attrs: {
136 "aria-label": 'Settings',
137 "id": "settingsBtn",
138 },
3ed62725 139 'class': {
88af03d2 140 "tooltip": true,
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141 "topindicator": true,
142 "indic-right": true,
88af03d2 143 "settings-btn": true,
130db3ef 144 "small": smallScreen,
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145 },
146 },
88af03d2 147 [h('i', { 'class': { "material-icons": true } }, "settings")]
3ed62725 148 );
88af03d2 149 elementArray.push(settingsBtn);
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150 let choices = h('div',
151 {
152 attrs: { "id": "choices" },
153 'class': { 'row': true },
154 style: {
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155 "display": this.choices.length>0?"block":"none",
156 "top": "-" + ((sizeY/2)*squareWidth+squareWidth/2) + "px",
157 "width": (this.choices.length * squareWidth) + "px",
158 "height": squareWidth + "px",
159 },
160 },
161 this.choices.map( m => { //a "choice" is a move
162 return h('div',
163 {
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164 'class': {
165 'board': true,
8a196305 166 ['board'+sizeY]: true,
c94bc812 167 },
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168 style: {
169 'width': (100/this.choices.length) + "%",
170 'padding-bottom': (100/this.choices.length) + "%",
171 },
172 },
173 [h('img',
174 {
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175 attrs: { "src": '/images/pieces/' +
176 VariantRules.getPpath(m.appear[0].c+m.appear[0].p) + '.svg' },
c94bc812 177 'class': { 'choice-piece': true },
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178 on: { "click": e => { this.play(m); this.choices=[]; } },
179 })
180 ]
181 );
182 })
183 );
184 // Create board element (+ reserves if needed by variant or mode)
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185 const lm = this.vr.lastMove;
186 const showLight = this.hints &&
187 (this.mode!="idle" || this.cursor==this.vr.moves.length);
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188 let gameDiv = h('div',
189 {
190 'class': { 'game': true },
191 },
192 [_.range(sizeX).map(i => {
193 let ci = this.mycolor=='w' ? i : sizeX-i-1;
194 return h(
195 'div',
196 {
197 'class': {
198 'row': true,
199 },
200 style: { 'opacity': this.choices.length>0?"0.5":"1" },
201 },
202 _.range(sizeY).map(j => {
203 let cj = this.mycolor=='w' ? j : sizeY-j-1;
204 let elems = [];
205 if (this.vr.board[ci][cj] != VariantRules.EMPTY)
206 {
207 elems.push(
208 h(
209 'img',
210 {
211 'class': {
212 'piece': true,
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213 'ghost': !!this.selectedPiece
214 && this.selectedPiece.parentNode.id == "sq-"+ci+"-"+cj,
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215 },
216 attrs: {
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217 src: "/images/pieces/" +
218 VariantRules.getPpath(this.vr.board[ci][cj]) + ".svg",
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219 },
220 }
221 )
222 );
223 }
88af03d2 224 if (this.hints && hintSquares[ci][cj])
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225 {
226 elems.push(
227 h(
228 'img',
229 {
230 'class': {
231 'mark-square': true,
232 },
233 attrs: {
234 src: "/images/mark.svg",
235 },
236 }
237 )
238 );
239 }
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240 return h(
241 'div',
242 {
243 'class': {
244 'board': true,
8a196305 245 ['board'+sizeY]: true,
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246 'light-square': (i+j)%2==0,
247 'dark-square': (i+j)%2==1,
a897b421 248 [this.color]: true,
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249 'highlight': showLight && !!lm && _.isMatch(lm.end, {x:ci,y:cj}),
250 'incheck': showLight && incheckSq[ci][cj],
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251 },
252 attrs: {
253 id: this.getSquareId({x:ci,y:cj}),
254 },
255 },
256 elems
257 );
258 })
259 );
260 }), choices]
261 );
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262 if (this.mode != "idle")
263 {
264 actionArray.push(
265 h('button',
266 {
267 on: { click: this.resign },
268 attrs: { "aria-label": 'Resign' },
269 'class': {
270 "tooltip":true,
271 "bottom": true,
b8a0ec4a 272 "small": smallScreen,
204e289b 273 },
0706ea91 274 },
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275 [h('i', { 'class': { "material-icons": true } }, "flag")])
276 );
277 }
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278 else if (this.vr.moves.length > 0)
279 {
280 // A game finished, and another is not started yet: allow navigation
281 actionArray = actionArray.concat([
282 h('button',
283 {
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284 on: { click: e => this.undo() },
285 attrs: { "aria-label": 'Undo' },
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286 "class": {
287 "small": smallScreen,
288 "marginleft": true,
289 },
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290 },
291 [h('i', { 'class': { "material-icons": true } }, "fast_rewind")]),
292 h('button',
293 {
294 on: { click: e => this.play() },
295 attrs: { "aria-label": 'Play' },
b8a0ec4a 296 "class": { "small": smallScreen },
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297 },
298 [h('i', { 'class': { "material-icons": true } }, "fast_forward")]),
299 ]
300 );
301 }
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302 if (this.mode == "friend")
303 {
304 actionArray = actionArray.concat(
305 [
306 h('button',
307 {
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308 on: { click: this.undoInGame },
309 attrs: { "aria-label": 'Undo' },
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310 "class": {
311 "small": smallScreen,
312 "marginleft": true,
313 },
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314 },
315 [h('i', { 'class': { "material-icons": true } }, "undo")]
316 ),
317 h('button',
318 {
319 on: { click: () => { this.mycolor = this.vr.getOppCol(this.mycolor) } },
320 attrs: { "aria-label": 'Flip' },
b8a0ec4a 321 "class": { "small": smallScreen },
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322 },
323 [h('i', { 'class': { "material-icons": true } }, "cached")]
324 ),
325 ]);
326 }
1d184b4c 327 elementArray.push(gameDiv);
5c42c64e 328 if (!!this.vr.reserve)
1221ac47 329 {
6752407b 330 const shiftIdx = (this.mycolor=="w" ? 0 : 1);
5c42c64e 331 let myReservePiecesArray = [];
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332 for (let i=0; i<VariantRules.RESERVE_PIECES.length; i++)
333 {
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334 myReservePiecesArray.push(h('div',
335 {
336 'class': {'board':true, ['board'+sizeY]:true},
6752407b 337 attrs: { id: this.getSquareId({x:sizeX+shiftIdx,y:i}) }
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338 },
339 [
340 h('img',
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341 {
342 'class': {"piece":true},
343 attrs: {
344 "src": "/images/pieces/" +
345 this.vr.getReservePpath(this.mycolor,i) + ".svg",
1221ac47 346 }
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347 }),
348 h('sup',
92342261 349 {"class": { "reserve-count": true } },
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350 [ this.vr.reserve[this.mycolor][VariantRules.RESERVE_PIECES[i]] ]
351 )
352 ]));
353 }
354 let oppReservePiecesArray = [];
355 const oppCol = this.vr.getOppCol(this.mycolor);
356 for (let i=0; i<VariantRules.RESERVE_PIECES.length; i++)
357 {
358 oppReservePiecesArray.push(h('div',
359 {
360 'class': {'board':true, ['board'+sizeY]:true},
6752407b 361 attrs: { id: this.getSquareId({x:sizeX+(1-shiftIdx),y:i}) }
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362 },
363 [
364 h('img',
365 {
366 'class': {"piece":true},
367 attrs: {
368 "src": "/images/pieces/" +
369 this.vr.getReservePpath(oppCol,i) + ".svg",
370 }
371 }),
372 h('sup',
92342261 373 {"class": { "reserve-count": true } },
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374 [ this.vr.reserve[oppCol][VariantRules.RESERVE_PIECES[i]] ]
375 )
376 ]));
1221ac47 377 }
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378 let reserves = h('div',
379 {
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380 'class':{
381 'game': true,
382 "reserve-div": true,
383 },
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384 },
385 [
386 h('div',
387 {
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388 'class': {
389 'row': true,
390 "reserve-row-1": true,
391 },
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392 },
393 myReservePiecesArray
394 ),
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395 h('div',
396 { 'class': { 'row': true }},
5c42c64e 397 oppReservePiecesArray
1221ac47 398 )
5c42c64e 399 ]
1221ac47 400 );
5c42c64e 401 elementArray.push(reserves);
1221ac47 402 }
f3802fcd 403 const eogMessage = this.getEndgameMessage(this.score);
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404 const modalEog = [
405 h('input',
406 {
ecf44502 407 attrs: { "id": "modal-eog", type: "checkbox" },
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408 "class": { "modal": true },
409 }),
410 h('div',
411 {
c148615e 412 attrs: { "role": "dialog", "aria-labelledby": "modal-eog" },
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413 },
414 [
415 h('div',
416 {
417 "class": { "card": true, "smallpad": true },
418 },
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419 [
420 h('label',
421 {
422 attrs: { "for": "modal-eog" },
423 "class": { "modal-close": true },
424 }
425 ),
426 h('h3',
427 {
428 "class": { "section": true },
429 domProps: { innerHTML: eogMessage },
430 }
431 )
432 ]
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433 )
434 ]
435 )
436 ];
437 elementArray = elementArray.concat(modalEog);
438 }
12b46d8f 439 // NOTE: this modal could be in Pug view (no usage of Vue functions or variables)
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440 const modalNewgame = [
441 h('input',
442 {
ecf44502 443 attrs: { "id": "modal-newgame", type: "checkbox" },
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444 "class": { "modal": true },
445 }),
446 h('div',
447 {
c148615e 448 attrs: { "role": "dialog", "aria-labelledby": "modal-newgame" },
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449 },
450 [
451 h('div',
452 {
453 "class": { "card": true, "smallpad": true },
454 },
455 [
456 h('label',
457 {
ecf44502 458 attrs: { "id": "close-newgame", "for": "modal-newgame" },
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459 "class": { "modal-close": true },
460 }
461 ),
462 h('h3',
463 {
464 "class": { "section": true },
465 domProps: { innerHTML: "New game" },
466 }
467 ),
468 h('p',
469 {
470 "class": { "section": true },
471 domProps: { innerHTML: "Waiting for opponent..." },
472 }
473 )
474 ]
475 )
476 ]
477 )
478 ];
479 elementArray = elementArray.concat(modalNewgame);
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480 const modalFenEdit = [
481 h('input',
482 {
483 attrs: { "id": "modal-fenedit", type: "checkbox" },
484 "class": { "modal": true },
485 }),
486 h('div',
487 {
488 attrs: { "role": "dialog", "aria-labelledby": "modal-fenedit" },
489 },
490 [
491 h('div',
492 {
493 "class": { "card": true, "smallpad": true },
494 },
495 [
496 h('label',
497 {
498 attrs: { "id": "close-fenedit", "for": "modal-fenedit" },
499 "class": { "modal-close": true },
500 }
501 ),
502 h('h3',
503 {
504 "class": { "section": true },
505 domProps: { innerHTML: "Position + flags (FEN):" },
506 }
507 ),
508 h('input',
509 {
510 attrs: {
511 "id": "input-fen",
512 type: "text",
513 value: VariantRules.GenRandInitFen(),
514 },
515 }
516 ),
517 h('button',
518 {
519 on: { click:
520 () => {
521 const fen = document.getElementById("input-fen").value;
522 document.getElementById("modal-fenedit").checked = false;
523 this.newGame("friend", fen);
524 }
525 },
526 domProps: { innerHTML: "Ok" },
527 }
528 ),
529 h('button',
530 {
531 on: { click:
532 () => {
533 document.getElementById("input-fen").value =
534 VariantRules.GenRandInitFen();
535 }
536 },
537 domProps: { innerHTML: "Random" },
538 }
539 ),
540 ]
541 )
542 ]
543 )
544 ];
545 elementArray = elementArray.concat(modalFenEdit);
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546 const modalSettings = [
547 h('input',
548 {
549 attrs: { "id": "modal-settings", type: "checkbox" },
550 "class": { "modal": true },
551 }),
552 h('div',
553 {
554 attrs: { "role": "dialog", "aria-labelledby": "modal-settings" },
555 },
556 [
557 h('div',
558 {
559 "class": { "card": true, "smallpad": true },
560 },
561 [
562 h('label',
563 {
564 attrs: { "id": "close-settings", "for": "modal-settings" },
565 "class": { "modal-close": true },
566 }
567 ),
568 h('h3',
569 {
570 "class": { "section": true },
a897b421 571 domProps: { innerHTML: "Preferences" },
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572 }
573 ),
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574 h('fieldset',
575 { },
576 [
2812515a 577 //h('legend', { domProps: { innerHTML: "Legend title" } }),
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578 h('label',
579 {
2812515a 580 attrs: { for: "setHints" },
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581 domProps: { innerHTML: "Show hints?" },
582 },
583 ),
584 h('input',
585 {
586 attrs: {
587 "id": "setHints",
588 type: "checkbox",
589 checked: this.hints,
590 },
591 on: { "change": this.toggleHints },
592 }
593 ),
594 ]
a897b421 595 ),
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596 h('fieldset',
597 { },
598 [
599 h('label',
600 {
2812515a 601 attrs: { for: "selectColor" },
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602 domProps: { innerHTML: "Board colors" },
603 },
604 ),
605 h("select",
606 {
607 attrs: { "id": "selectColor" },
608 on: { "change": this.setColor },
609 },
610 [
611 h("option",
612 {
613 domProps: {
614 "value": "lichess",
2812515a 615 innerHTML: "brown"
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616 },
617 attrs: { "selected": this.color=="lichess" },
618 }
619 ),
620 h("option",
621 {
622 domProps: {
623 "value": "chesscom",
2812515a 624 innerHTML: "green"
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625 },
626 attrs: { "selected": this.color=="chesscom" },
627 }
628 ),
629 h("option",
630 {
631 domProps: {
632 "value": "chesstempo",
2812515a 633 innerHTML: "blue"
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634 },
635 attrs: { "selected": this.color=="chesstempo" },
636 }
637 ),
638 ],
639 ),
640 ]
641 ),
642 h('fieldset',
643 { },
644 [
645 h('label',
646 {
2812515a 647 attrs: { for: "selectSound" },
130db3ef 648 domProps: { innerHTML: "Play sounds?" },
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649 },
650 ),
651 h("select",
652 {
653 attrs: { "id": "selectSound" },
654 on: { "change": this.setSound },
655 },
656 [
657 h("option",
658 {
659 domProps: {
660 "value": "0",
130db3ef 661 innerHTML: "None"
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662 },
663 }
664 ),
665 h("option",
666 {
667 domProps: {
668 "value": "1",
130db3ef 669 innerHTML: "Newgame"
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670 },
671 }
672 ),
673 h("option",
674 {
675 domProps: {
676 "value": "2",
130db3ef 677 innerHTML: "All"
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678 },
679 }
680 ),
681 ],
682 ),
683 ]
a897b421 684 ),
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685 ]
686 )
687 ]
688 )
689 ];
690 elementArray = elementArray.concat(modalSettings);
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691 const actions = h('div',
692 {
693 attrs: { "id": "actions" },
694 'class': { 'text-center': true },
695 },
696 actionArray
697 );
698 elementArray.push(actions);
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699 if (this.score != "*")
700 {
701 elementArray.push(
702 h('div',
01ca2adc 703 { attrs: { id: "pgn-div" } },
01a135e2 704 [
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705 h('a',
706 {
707 attrs: {
708 id: "download",
709 href: "#",
710 }
711 }
712 ),
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713 h('p',
714 {
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715 attrs: { id: "pgn-game" },
716 on: { click: this.download },
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717 domProps: { innerHTML: this.pgnTxt }
718 }
719 )
720 ]
721 )
722 );
723 }
724 else if (this.mode != "idle")
725 {
2748531f 726 // Show current FEN
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727 elementArray.push(
728 h('div',
729 { attrs: { id: "fen-div" } },
730 [
731 h('p',
732 {
733 attrs: { id: "fen-string" },
2748531f 734 domProps: { innerHTML: this.vr.getFen() }
01a135e2
BA
735 }
736 )
737 ]
738 )
739 );
740 }
1d184b4c
BA
741 return h(
742 'div',
743 {
744 'class': {
745 "col-sm-12":true,
746 "col-md-8":true,
747 "col-md-offset-2":true,
748 "col-lg-6":true,
749 "col-lg-offset-3":true,
750 },
dda21a71 751 // NOTE: click = mousedown + mouseup
1d184b4c
BA
752 on: {
753 mousedown: this.mousedown,
754 mousemove: this.mousemove,
755 mouseup: this.mouseup,
ffea77d9
BA
756 touchstart: this.mousedown,
757 touchmove: this.mousemove,
758 touchend: this.mouseup,
1d184b4c
BA
759 },
760 },
761 elementArray
762 );
763 },
764 created: function() {
765 const url = socketUrl;
766 const continuation = (localStorage.getItem("variant") === variant);
b019d603 767 this.myid = continuation ? localStorage.getItem("myid") : getRandString();
92ff5bae
BA
768 if (!continuation)
769 {
92342261
BA
770 // HACK: play a small silent sound to allow "new game" sound later
771 // if tab not focused (TODO: does it really work ?!)
92ff5bae
BA
772 new Audio("/sounds/silent.mp3").play().then(() => {}).catch(err => {});
773 }
1d184b4c 774 this.conn = new WebSocket(url + "/?sid=" + this.myid + "&page=" + variant);
d35f20e4 775 const socketOpenListener = () => {
1d184b4c
BA
776 if (continuation)
777 {
dfb4afc1
BA
778 const fen = localStorage.getItem("fen");
779 const mycolor = localStorage.getItem("mycolor");
780 const oppid = localStorage.getItem("oppid");
781 const moves = JSON.parse(localStorage.getItem("moves"));
782 this.newGame("human", fen, mycolor, oppid, moves, true);
a29d9d6b 783 // Send ping to server (answer pong if opponent is connected)
ecf44502 784 this.conn.send(JSON.stringify({code:"ping",oppid:this.oppid}));
1d184b4c 785 }
30ff6e04
BA
786 else if (localStorage.getItem("newgame") === variant)
787 {
788 // New game request has been cancelled on disconnect
001344b9 789 this.newGame("human", undefined, undefined, undefined, undefined, "reconnect");
30ff6e04 790 }
1d184b4c 791 };
d35f20e4 792 const socketMessageListener = msg => {
1d184b4c
BA
793 const data = JSON.parse(msg.data);
794 switch (data.code)
795 {
796 case "newgame": //opponent found
92342261
BA
797 // oppid: opponent socket ID
798 this.newGame("human", data.fen, data.color, data.oppid);
1d184b4c
BA
799 break;
800 case "newmove": //..he played!
801 this.play(data.move, "animate");
802 break;
f3802fcd 803 case "pong": //received if we sent a ping (game still alive on our side)
1d184b4c 804 this.oppConnected = true;
a29d9d6b 805 const L = this.vr.moves.length;
f3802fcd 806 // Send our "last state" informations to opponent
a29d9d6b
BA
807 this.conn.send(JSON.stringify({
808 code:"lastate",
f3802fcd 809 oppid:this.oppid,
a29d9d6b
BA
810 lastMove:L>0?this.vr.moves[L-1]:undefined,
811 movesCount:L,
812 }));
1d184b4c 813 break;
a29d9d6b
BA
814 case "lastate": //got opponent infos about last move (we might have resigned)
815 if (this.mode!="human" || this.oppid!=data.oppid)
816 {
817 // OK, we resigned
818 this.conn.send(JSON.stringify({
819 code:"lastate",
f3802fcd 820 oppid:this.oppid,
a29d9d6b
BA
821 lastMove:undefined,
822 movesCount:-1,
823 }));
824 }
825 else if (data.movesCount < 0)
826 {
827 // OK, he resigned
828 this.endGame(this.mycolor=="w"?"1-0":"0-1");
829 }
830 else if (data.movesCount < this.vr.moves.length)
831 {
832 // We must tell last move to opponent
833 const L = this.vr.moves.length;
834 this.conn.send(JSON.stringify({
835 code:"lastate",
f3802fcd 836 oppid:this.oppid,
a29d9d6b
BA
837 lastMove:this.vr.moves[L-1],
838 movesCount:L,
839 }));
840 }
841 else if (data.movesCount > this.vr.moves.length) //just got last move from him
842 this.play(data.lastMove, "animate");
ecf44502 843 break;
1d184b4c 844 case "resign": //..you won!
dfb4afc1 845 this.endGame(this.mycolor=="w"?"1-0":"0-1");
1d184b4c 846 break;
f3802fcd 847 // TODO: also use (dis)connect info to count online players?
1d184b4c
BA
848 case "connect":
849 case "disconnect":
850 if (this.mode == "human" && this.oppid == data.id)
851 this.oppConnected = (data.code == "connect");
852 break;
853 }
854 };
d35f20e4 855 const socketCloseListener = () => {
d35f20e4
BA
856 this.conn = new WebSocket(url + "/?sid=" + this.myid + "&page=" + variant);
857 this.conn.addEventListener('open', socketOpenListener);
858 this.conn.addEventListener('message', socketMessageListener);
859 this.conn.addEventListener('close', socketCloseListener);
860 };
861 this.conn.onopen = socketOpenListener;
862 this.conn.onmessage = socketMessageListener;
863 this.conn.onclose = socketCloseListener;
e64084da
BA
864 // Listen to keyboard left/right to navigate in game
865 document.onkeydown = event => {
2748531f 866 if (this.mode == "idle" && !!this.vr && this.vr.moves.length > 0
e64084da
BA
867 && [37,39].includes(event.keyCode))
868 {
869 event.preventDefault();
870 if (event.keyCode == 37) //Back
871 this.undo();
872 else //Forward (39)
873 this.play();
874 }
875 };
1d184b4c
BA
876 },
877 methods: {
01ca2adc
BA
878 download: function() {
879 let content = document.getElementById("pgn-game").innerHTML;
880 content = content.replace(/<br>/g, "\n");
881 // Prepare and trigger download link
882 let downloadAnchor = document.getElementById("download");
883 downloadAnchor.setAttribute("download", "game.pgn");
92342261
BA
884 downloadAnchor.href = "data:text/plain;charset=utf-8," +
885 encodeURIComponent(content);
01ca2adc
BA
886 downloadAnchor.click();
887 },
dfb4afc1
BA
888 endGame: function(score) {
889 this.score = score;
ecf44502 890 let modalBox = document.getElementById("modal-eog");
186516b8 891 modalBox.checked = true;
204e289b 892 // Variants may have special PGN structure (so next function isn't defined here)
3840e240
BA
893 this.pgnTxt = this.vr.getPGN(this.mycolor, this.score, this.fenStart, this.mode);
894 setTimeout(() => { modalBox.checked = false; }, 2000);
1d184b4c
BA
895 if (this.mode == "human")
896 this.clearStorage();
3840e240 897 this.mode = "idle";
e64084da 898 this.cursor = this.vr.moves.length; //to navigate in finished game
1d184b4c
BA
899 this.oppid = "";
900 },
f3802fcd
BA
901 getEndgameMessage: function(score) {
902 let eogMessage = "Unfinished";
903 switch (this.score)
904 {
905 case "1-0":
906 eogMessage = "White win";
907 break;
908 case "0-1":
909 eogMessage = "Black win";
910 break;
911 case "1/2":
912 eogMessage = "Draw";
913 break;
914 }
915 return eogMessage;
916 },
762b7c9c
BA
917 setStorage: function() {
918 localStorage.setItem("myid", this.myid);
919 localStorage.setItem("variant", variant);
920 localStorage.setItem("mycolor", this.mycolor);
921 localStorage.setItem("oppid", this.oppid);
922 localStorage.setItem("fenStart", this.fenStart);
923 localStorage.setItem("moves", JSON.stringify(this.vr.moves));
1d184b4c 924 localStorage.setItem("fen", this.vr.getFen());
762b7c9c
BA
925 },
926 updateStorage: function() {
dfb4afc1 927 localStorage.setItem("moves", JSON.stringify(this.vr.moves));
762b7c9c 928 localStorage.setItem("fen", this.vr.getFen());
1d184b4c
BA
929 },
930 clearStorage: function() {
931 delete localStorage["variant"];
932 delete localStorage["myid"];
933 delete localStorage["mycolor"];
934 delete localStorage["oppid"];
762b7c9c 935 delete localStorage["fenStart"];
1d184b4c 936 delete localStorage["fen"];
dfb4afc1 937 delete localStorage["moves"];
1d184b4c 938 },
c148615e
BA
939 // HACK because mini-css tooltips are persistent after click...
940 getRidOfTooltip: function(elt) {
941 elt.style.visibility = "hidden";
942 setTimeout(() => { elt.style.visibility="visible"; }, 100);
943 },
88af03d2
BA
944 showSettings: function(e) {
945 this.getRidOfTooltip(e.currentTarget);
946 document.getElementById("modal-settings").checked = true;
947 },
948 toggleHints: function() {
949 this.hints = !this.hints;
950 setCookie("hints", this.hints ? "1" : "0");
951 },
2812515a
BA
952 setColor: function(e) {
953 this.color = e.target.options[e.target.selectedIndex].value;
954 setCookie("color", this.color);
12b46d8f 955 },
2812515a 956 setSound: function(e) {
130db3ef 957 this.sound = parseInt(e.target.options[e.target.selectedIndex].value);
2812515a 958 setCookie("sound", this.sound);
12b46d8f 959 },
c148615e
BA
960 clickGameSeek: function(e) {
961 this.getRidOfTooltip(e.currentTarget);
f3802fcd
BA
962 if (this.mode == "human")
963 return; //no newgame while playing
964 if (this.seek)
01a135e2 965 {
283d06a4 966 this.conn.send(JSON.stringify({code:"cancelnewgame"}));
f3802fcd 967 delete localStorage["newgame"]; //cancel game seek
01a135e2
BA
968 this.seek = false;
969 }
f3802fcd 970 else
f3802fcd 971 this.newGame("human");
f3802fcd 972 },
c148615e
BA
973 clickComputerGame: function(e) {
974 this.getRidOfTooltip(e.currentTarget);
f3802fcd
BA
975 if (this.mode == "human")
976 return; //no newgame while playing
977 this.newGame("computer");
978 },
2748531f
BA
979 clickFriendGame: function(e) {
980 this.getRidOfTooltip(e.currentTarget);
981 document.getElementById("modal-fenedit").checked = true;
982 },
2748531f
BA
983 resign: function(e) {
984 this.getRidOfTooltip(e.currentTarget);
c148615e
BA
985 if (this.mode == "human" && this.oppConnected)
986 {
987 try {
988 this.conn.send(JSON.stringify({code: "resign", oppid: this.oppid}));
989 } catch (INVALID_STATE_ERR) {
990 return; //socket is not ready (and not yet reconnected)
991 }
992 }
993 this.endGame(this.mycolor=="w"?"0-1":"1-0");
994 },
dfb4afc1 995 newGame: function(mode, fenInit, color, oppId, moves, continuation) {
55eb331d 996 const fen = fenInit || VariantRules.GenRandInitFen();
1d184b4c
BA
997 console.log(fen); //DEBUG
998 if (mode=="human" && !oppId)
999 {
cd3174c5
BA
1000 const storageVariant = localStorage.getItem("variant");
1001 if (!!storageVariant && storageVariant !== variant)
1002 {
cd3174c5
BA
1003 alert("Finish your " + storageVariant + " game first!");
1004 return;
1005 }
1d184b4c 1006 // Send game request and wait..
01a135e2
BA
1007 localStorage["newgame"] = variant;
1008 this.seek = true;
1d184b4c 1009 this.clearStorage(); //in case of
d35f20e4
BA
1010 try {
1011 this.conn.send(JSON.stringify({code:"newgame", fen:fen}));
1012 } catch (INVALID_STATE_ERR) {
1013 return; //nothing achieved
1014 }
f3802fcd 1015 if (continuation !== "reconnect") //TODO: bad HACK...
a68d899d 1016 {
ecf44502 1017 let modalBox = document.getElementById("modal-newgame");
a68d899d
BA
1018 modalBox.checked = true;
1019 setTimeout(() => { modalBox.checked = false; }, 2000);
1020 }
1d184b4c
BA
1021 return;
1022 }
dfb4afc1 1023 this.vr = new VariantRules(fen, moves || []);
c148615e 1024 this.score = "*";
3840e240 1025 this.pgnTxt = ""; //redundant with this.score = "*", but cleaner
1d184b4c 1026 this.mode = mode;
1fcaa356 1027 this.incheck = []; //in case of
2748531f 1028 this.fenStart = (continuation ? localStorage.getItem("fenStart") : fen);
1d184b4c
BA
1029 if (mode=="human")
1030 {
1031 // Opponent found!
2812515a 1032 if (!continuation) //not playing sound on game continuation
1d184b4c 1033 {
2812515a
BA
1034 if (this.sound >= 1)
1035 new Audio("/sounds/newgame.mp3").play().then(() => {}).catch(err => {});
ecf44502 1036 document.getElementById("modal-newgame").checked = false;
1d184b4c
BA
1037 }
1038 this.oppid = oppId;
1039 this.oppConnected = true;
1040 this.mycolor = color;
186516b8 1041 this.seek = false;
e64a4eff
BA
1042 if (!!moves && moves.length > 0) //imply continuation
1043 {
e64a4eff 1044 const lastMove = moves[moves.length-1];
cd4cad04 1045 this.vr.undo(lastMove);
46302e64 1046 this.incheck = this.vr.getCheckSquares(lastMove);
e64a4eff
BA
1047 this.vr.play(lastMove, "ingame");
1048 }
186516b8 1049 delete localStorage["newgame"];
762b7c9c 1050 this.setStorage(); //in case of interruptions
1d184b4c 1051 }
2748531f 1052 else if (mode == "computer")
1d184b4c 1053 {
f3c10e18 1054 this.mycolor = Math.random() < 0.5 ? 'w' : 'b';
1d184b4c
BA
1055 if (this.mycolor == 'b')
1056 setTimeout(this.playComputerMove, 500);
1057 }
2748531f 1058 //else: against a (IRL) friend: nothing more to do
1d184b4c
BA
1059 },
1060 playComputerMove: function() {
4b353936 1061 const timeStart = Date.now();
46302e64 1062 const compMove = this.vr.getComputerMove();
4b353936
BA
1063 // (first move) HACK: avoid selecting elements before they appear on page:
1064 const delay = Math.max(500-(Date.now()-timeStart), 0);
1065 setTimeout(() => this.play(compMove, "animate"), delay);
1d184b4c
BA
1066 },
1067 // Get the identifier of a HTML table cell from its numeric coordinates o.x,o.y.
1068 getSquareId: function(o) {
1069 // NOTE: a separator is required to allow any size of board
1070 return "sq-" + o.x + "-" + o.y;
1071 },
1072 // Inverse function
1073 getSquareFromId: function(id) {
1074 let idParts = id.split('-');
1075 return [parseInt(idParts[1]), parseInt(idParts[2])];
1076 },
1077 mousedown: function(e) {
1078 e = e || window.event;
44461547
BA
1079 let ingame = false;
1080 let elem = e.target;
1081 while (!ingame && elem !== null)
1082 {
1083 if (elem.classList.contains("game"))
1084 {
1085 ingame = true;
1086 break;
1087 }
1088 elem = elem.parentElement;
1089 }
1090 if (!ingame) //let default behavior (click on button...)
1091 return;
1d184b4c
BA
1092 e.preventDefault(); //disable native drag & drop
1093 if (!this.selectedPiece && e.target.classList.contains("piece"))
1094 {
1095 // Next few lines to center the piece on mouse cursor
1096 let rect = e.target.parentNode.getBoundingClientRect();
1097 this.start = {
1098 x: rect.x + rect.width/2,
1099 y: rect.y + rect.width/2,
1100 id: e.target.parentNode.id
1101 };
1102 this.selectedPiece = e.target.cloneNode();
1103 this.selectedPiece.style.position = "absolute";
1104 this.selectedPiece.style.top = 0;
1105 this.selectedPiece.style.display = "inline-block";
1106 this.selectedPiece.style.zIndex = 3000;
1107 let startSquare = this.getSquareFromId(e.target.parentNode.id);
2748531f
BA
1108 const iCanPlay = this.mode!="idle"
1109 && (this.mode=="friend" || this.vr.canIplay(this.mycolor,startSquare));
1110 this.possibleMoves = iCanPlay ? this.vr.getPossibleMovesFrom(startSquare) : [];
92342261
BA
1111 // Next line add moving piece just after current image
1112 // (required for Crazyhouse reserve)
5bd679d5 1113 e.target.parentNode.insertBefore(this.selectedPiece, e.target.nextSibling);
1d184b4c
BA
1114 }
1115 },
1116 mousemove: function(e) {
1117 if (!this.selectedPiece)
1118 return;
1119 e = e || window.event;
1120 // If there is an active element, move it around
1121 if (!!this.selectedPiece)
1122 {
ffea77d9
BA
1123 const [offsetX,offsetY] = !!e.clientX
1124 ? [e.clientX,e.clientY] //desktop browser
1125 : [e.changedTouches[0].pageX, e.changedTouches[0].pageY]; //smartphone
1126 this.selectedPiece.style.left = (offsetX-this.start.x) + "px";
1127 this.selectedPiece.style.top = (offsetY-this.start.y) + "px";
1d184b4c
BA
1128 }
1129 },
1130 mouseup: function(e) {
1131 if (!this.selectedPiece)
1132 return;
1133 e = e || window.event;
1134 // Read drop target (or parentElement, parentNode... if type == "img")
92342261 1135 this.selectedPiece.style.zIndex = -3000; //HACK to find square from final coords
ffea77d9
BA
1136 const [offsetX,offsetY] = !!e.clientX
1137 ? [e.clientX,e.clientY]
1138 : [e.changedTouches[0].pageX, e.changedTouches[0].pageY];
1139 let landing = document.elementFromPoint(offsetX, offsetY);
1d184b4c 1140 this.selectedPiece.style.zIndex = 3000;
92342261
BA
1141 // Next condition: classList.contains(piece) fails because of marks
1142 while (landing.tagName == "IMG")
1d184b4c 1143 landing = landing.parentNode;
92342261
BA
1144 if (this.start.id == landing.id)
1145 {
1146 // A click: selectedPiece and possibleMoves are already filled
1d184b4c 1147 return;
92342261 1148 }
1d184b4c
BA
1149 // OK: process move attempt
1150 let endSquare = this.getSquareFromId(landing.id);
1151 let moves = this.findMatchingMoves(endSquare);
1152 this.possibleMoves = [];
1153 if (moves.length > 1)
1154 this.choices = moves;
1155 else if (moves.length==1)
1156 this.play(moves[0]);
1157 // Else: impossible move
1158 this.selectedPiece.parentNode.removeChild(this.selectedPiece);
1159 delete this.selectedPiece;
1160 this.selectedPiece = null;
1161 },
1162 findMatchingMoves: function(endSquare) {
1163 // Run through moves list and return the matching set (if promotions...)
1164 let moves = [];
1165 this.possibleMoves.forEach(function(m) {
1166 if (endSquare[0] == m.end.x && endSquare[1] == m.end.y)
1167 moves.push(m);
1168 });
1169 return moves;
1170 },
1171 animateMove: function(move) {
1172 let startSquare = document.getElementById(this.getSquareId(move.start));
1173 let endSquare = document.getElementById(this.getSquareId(move.end));
1174 let rectStart = startSquare.getBoundingClientRect();
1175 let rectEnd = endSquare.getBoundingClientRect();
1176 let translation = {x:rectEnd.x-rectStart.x, y:rectEnd.y-rectStart.y};
92ff5bae
BA
1177 let movingPiece =
1178 document.querySelector("#" + this.getSquareId(move.start) + " > img.piece");
92342261 1179 // HACK for animation (with positive translate, image slides "under background")
1d184b4c
BA
1180 // Possible improvement: just alter squares on the piece's way...
1181 squares = document.getElementsByClassName("board");
1182 for (let i=0; i<squares.length; i++)
1183 {
1184 let square = squares.item(i);
1185 if (square.id != this.getSquareId(move.start))
1186 square.style.zIndex = "-1";
1187 }
92342261
BA
1188 movingPiece.style.transform = "translate(" + translation.x + "px," +
1189 translation.y + "px)";
1d184b4c
BA
1190 movingPiece.style.transitionDuration = "0.2s";
1191 movingPiece.style.zIndex = "3000";
1192 setTimeout( () => {
1193 for (let i=0; i<squares.length; i++)
1194 squares.item(i).style.zIndex = "auto";
1195 movingPiece.style = {}; //required e.g. for 0-0 with KR swap
1196 this.play(move);
1197 }, 200);
1198 },
1199 play: function(move, programmatic) {
e64084da
BA
1200 if (!move)
1201 {
1202 // Navigate after game is over
1203 if (this.cursor >= this.vr.moves.length)
1204 return; //already at the end
1205 move = this.vr.moves[this.cursor++];
1206 }
1d184b4c
BA
1207 if (!!programmatic) //computer or human opponent
1208 {
1209 this.animateMove(move);
1210 return;
1211 }
1212 // Not programmatic, or animation is over
1213 if (this.mode == "human" && this.vr.turn == this.mycolor)
a29d9d6b 1214 this.conn.send(JSON.stringify({code:"newmove", move:move, oppid:this.oppid}));
2812515a
BA
1215 if (this.sound == 2)
1216 new Audio("/sounds/chessmove1.mp3").play().then(() => {}).catch(err => {});
e64084da 1217 if (this.mode != "idle")
3300df38
BA
1218 {
1219 this.incheck = this.vr.getCheckSquares(move); //is opponent in check?
e64084da 1220 this.vr.play(move, "ingame");
3300df38 1221 }
e64084da 1222 else
3300df38 1223 {
e64084da 1224 VariantRules.PlayOnBoard(this.vr.board, move);
3300df38
BA
1225 this.$forceUpdate(); //TODO: ?!
1226 }
1d184b4c
BA
1227 if (this.mode == "human")
1228 this.updateStorage(); //after our moves and opponent moves
e64084da
BA
1229 if (this.mode != "idle")
1230 {
1231 const eog = this.vr.checkGameOver();
1232 if (eog != "*")
1233 this.endGame(eog);
1234 }
1235 if (this.mode == "computer" && this.vr.turn != this.mycolor)
1d184b4c
BA
1236 setTimeout(this.playComputerMove, 500);
1237 },
e64084da
BA
1238 undo: function() {
1239 // Navigate after game is over
1240 if (this.cursor == 0)
1241 return; //already at the beginning
3300df38
BA
1242 if (this.cursor == this.vr.moves.length)
1243 this.incheck = []; //in case of...
e64084da
BA
1244 const move = this.vr.moves[--this.cursor];
1245 VariantRules.UndoOnBoard(this.vr.board, move);
1246 this.$forceUpdate(); //TODO: ?!
2748531f
BA
1247 },
1248 undoInGame: function() {
1249 const lm = this.vr.lastMove;
1250 if (!!lm)
1251 this.vr.undo(lm);
1252 },
1d184b4c
BA
1253 },
1254})