Add Gomoku + Atarigo
[vchess.git] / client / src / components / Board.vue
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24340cae 1<script>
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2import { getSquareId, getSquareFromId } from "@/utils/squareId";
3import { ArrayFun } from "@/utils/array";
dfeb96ea 4import { store } from "@/store";
cf2343ce 5export default {
6808d7a1 6 name: "my-board",
2c5d7b20 7 // Last move cannot be guessed from here, and is required for highlights.
cf2343ce 8 // vr: object to check moves, print board...
93d1d7a7 9 // userColor is left undefined for an external observer
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10 props: [
11 "vr",
12 "lastMove",
13 "analyze",
20620465 14 "score",
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15 "incheck",
16 "orientation",
17 "userColor",
18 "vname"
19 ],
20 data: function() {
cf2343ce 21 return {
cafe0166 22 mobileBrowser: ("ontouchstart" in window),
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23 possibleMoves: [], //filled after each valid click/dragstart
24 choices: [], //promotion pieces, or checkered captures... (as moves)
107dc1bd 25 containerPos: null,
cf2343ce 26 selectedPiece: null, //moving piece (or clicked piece)
28b32b4f 27 start: null, //pixels coordinates + id of starting square (click or drag)
49dad261 28 startArrow: null,
107dc1bd 29 movingArrow: null,
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30 arrows: [], //object of {start: x,y / end: x,y}
31 circles: {}, //object of squares' ID --> true (TODO: use a set?)
28b32b4f 32 click: "",
3a2a7b5f 33 clickTime: 0,
6808d7a1 34 settings: store.state.settings
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35 };
36 },
37 render(h) {
6808d7a1 38 if (!this.vr) {
7b3cf1b7 39 // Return empty div of class 'game' to avoid error when setting size
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40 return h(
41 "div",
42 { "class": { game: true } }
43 );
7b3cf1b7 44 }
6808d7a1 45 const [sizeX, sizeY] = [V.size.x, V.size.y];
cf2343ce 46 // Precompute hints squares to facilitate rendering
e2732923 47 let hintSquares = ArrayFun.init(sizeX, sizeY, false);
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48 this.possibleMoves.forEach(m => {
49 hintSquares[m.end.x][m.end.y] = true;
50 });
cf2343ce 51 // Also precompute in-check squares
e2732923 52 let incheckSq = ArrayFun.init(sizeX, sizeY, false);
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53 this.incheck.forEach(sq => {
54 incheckSq[sq[0]][sq[1]] = true;
55 });
06e79b07 56
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57 let lm = this.lastMove;
58 // Precompute lastMove highlighting squares
59 const lmHighlights = {};
60 if (!!lm) {
61 if (!Array.isArray(lm)) lm = [lm];
62 lm.forEach(m => {
00eef1ca 63 if (!m.start.noHighlight && V.OnBoard(m.start.x, m.start.y))
b406466b 64 lmHighlights[m.start.x + sizeX * m.start.y] = true;
00eef1ca 65 if (!m.end.noHighlight && V.OnBoard(m.end.x, m.end.y))
b406466b 66 lmHighlights[m.end.x + sizeX * m.end.y] = true;
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67 if (!!m.start.toplay)
68 // For Dice variant (at least?)
69 lmHighlights[m.start.toplay[0] + sizeX * m.start.toplay[1]] = true;
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70 });
71 }
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72 const showLight = (
73 this.settings.highlight &&
4f524197 74 ["all", "highlight"].includes(V.ShowMoves)
57eb158f 75 );
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76 const showCheck = (
77 this.settings.highlight &&
4f524197 78 ["all", "highlight", "byrow"].includes(V.ShowMoves)
d54f6261 79 );
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80 const orientation = !V.CanFlip ? "w" : this.orientation;
81 // Ensure that squares colors do not change when board is flipped
82 const lightSquareMod = (sizeX + sizeY) % 2;
83 const showPiece = (x, y) => {
84 return (
85 this.vr.board[x][y] != V.EMPTY &&
86 (!this.vr.enlightened || this.analyze || this.score != "*" ||
87 (!!this.userColor && this.vr.enlightened[this.userColor][x][y]))
88 );
89 };
90 const inHighlight = (x, y) => {
af34341d 91 return showLight && !!lmHighlights[x + sizeX * y];
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92 };
93 const inShadow = (x, y) => {
94 return (
95 !this.analyze &&
96 this.score == "*" &&
97 this.vr.enlightened &&
98 (!this.userColor || !this.vr.enlightened[this.userColor][x][y])
99 );
100 };
101 // Create board element (+ reserves if needed by variant)
9d4a0218 102 let elementArray = [];
cf2343ce 103 const gameDiv = h(
6808d7a1 104 "div",
cf2343ce 105 {
107dc1bd 106 attrs: { id: "gamePosition" },
6ec2feb2 107 "class": {
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108 game: true,
109 clearer: true
110 }
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111 },
112 [...Array(sizeX).keys()].map(i => {
311cba76 113 const ci = orientation == "w" ? i : sizeX - i - 1;
cf2343ce 114 return h(
6808d7a1 115 "div",
cf2343ce 116 {
6ec2feb2 117 "class": {
6808d7a1 118 row: true
cf2343ce 119 },
6808d7a1 120 style: { opacity: this.choices.length > 0 ? "0.5" : "1" }
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121 },
122 [...Array(sizeY).keys()].map(j => {
311cba76 123 const cj = orientation == "w" ? j : sizeY - j - 1;
49dad261 124 const squareId = "sq-" + ci + "-" + cj;
cf2343ce 125 let elems = [];
311cba76 126 if (showPiece(ci, cj)) {
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127 let pieceSpecs = {
128 "class": {
129 piece: true,
130 ghost:
131 !!this.selectedPiece &&
132 this.selectedPiece.parentNode.id == squareId
133 },
134 attrs: {
135 src:
136 "/images/pieces/" +
137 this.vr.getPpath(
138 this.vr.board[ci][cj],
139 // Extra args useful for some variants:
140 this.userColor,
141 this.score,
142 this.orientation) +
143 V.IMAGE_EXTENSION
144 }
145 };
146 if (this.arrows.length == 0)
147 pieceSpecs["style"] = { position: "absolute" };
148 elems.push(h("img", pieceSpecs));
cf2343ce 149 }
6808d7a1 150 if (this.settings.hints && hintSquares[ci][cj]) {
cf2343ce 151 elems.push(
6808d7a1 152 h("img", {
6ec2feb2 153 "class": {
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154 "mark-square": true
155 },
156 attrs: {
157 src: "/images/mark.svg"
cf2343ce 158 }
6808d7a1 159 })
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160 );
161 }
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162 if (!!this.circles[squareId]) {
163 elems.push(
164 h("img", {
165 "class": {
166 "circle-square": true
167 },
168 attrs: {
169 src: "/images/circle.svg"
170 }
171 })
172 );
173 }
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174 const oddity = (ci + cj) % 2;
175 const lightSquare = (
176 (!V.DarkBottomRight && oddity == lightSquareMod) ||
177 (V.DarkBottomRight && oddity != lightSquareMod)
178 );
cf2343ce 179 return h(
6808d7a1 180 "div",
cf2343ce 181 {
6ec2feb2 182 "class": {
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183 board: true,
184 ["board" + sizeY]: true,
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185 "light-square":
186 !V.Notoodark && lightSquare && !V.Monochrome,
187 "dark-square":
188 !V.Notoodark && (!lightSquare || !!V.Monochrome),
189 "middle-square": V.Notoodark,
dfeb96ea 190 [this.settings.bcolor]: true,
311cba76 191 "in-shadow": inShadow(ci, cj),
f63ba277 192 "highlight": inHighlight(ci, cj),
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193 "incheck-light":
194 showCheck && lightSquare && incheckSq[ci][cj],
195 "incheck-dark":
90df90bc 196 showCheck && !lightSquare && incheckSq[ci][cj],
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197 "hover-highlight":
198 this.vr.hoverHighlight(
199 [ci, cj], !this.analyze ? this.userColor : null)
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200 },
201 attrs: {
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202 id: getSquareId({ x: ci, y: cj })
203 }
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204 },
205 elems
206 );
207 })
208 );
24340cae 209 })
cf2343ce 210 );
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211 if (!!this.vr.reserve) {
212 const playingColor = this.userColor || "w"; //default for an observer
6808d7a1 213 const shiftIdx = playingColor == "w" ? 0 : 1;
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214 // Some variants have more than sizeY reserve pieces (Clorange: 10)
215 const reserveSquareNb = Math.max(sizeY, V.RESERVE_PIECES.length);
cf2343ce 216 let myReservePiecesArray = [];
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217 if (!!this.vr.reserve[playingColor]) {
218 for (let i = 0; i < V.RESERVE_PIECES.length; i++) {
219 const qty = this.vr.reserve[playingColor][V.RESERVE_PIECES[i]];
220 myReservePiecesArray.push(
221 h(
222 "div",
223 {
224 "class": { board: true, ["board" + reserveSquareNb]: true },
225 attrs: { id: getSquareId({ x: sizeX + shiftIdx, y: i }) },
226 style: { opacity: qty > 0 ? 1 : 0.35 }
227 },
228 [
229 h("img", {
230 // NOTE: class "reserve" not used currently
231 "class": { piece: true, reserve: true },
232 attrs: {
233 src:
234 "/images/pieces/" +
235 this.vr.getReservePpath(i, playingColor, orientation) +
236 ".svg"
237 }
238 }),
239 h(
240 "sup",
241 {
242 "class": { "reserve-count": true },
243 style: { top: "calc(100% + 5px)" }
244 },
245 [ qty ]
246 )
247 ]
248 )
249 );
250 }
251 }
252 let oppReservePiecesArray = [];
253 const oppCol = V.GetOppCol(playingColor);
254 if (!!this.vr.reserve[oppCol]) {
255 for (let i = 0; i < V.RESERVE_PIECES.length; i++) {
256 const qty = this.vr.reserve[oppCol][V.RESERVE_PIECES[i]];
257 oppReservePiecesArray.push(
258 h(
259 "div",
260 {
261 "class": { board: true, ["board" + reserveSquareNb]: true },
262 attrs: { id: getSquareId({ x: sizeX + (1 - shiftIdx), y: i }) },
263 style: { opacity: qty > 0 ? 1 : 0.35 }
264 },
265 [
266 h("img", {
267 "class": { piece: true, reserve: true },
268 attrs: {
269 src:
270 "/images/pieces/" +
271 this.vr.getReservePpath(i, oppCol, orientation) +
272 ".svg"
273 }
274 }),
275 h(
276 "sup",
277 {
278 "class": { "reserve-count": true },
279 style: { top: "calc(100% + 5px)" }
280 },
281 [ qty ]
282 )
283 ]
284 )
285 );
286 }
287 }
288 const myReserveTop = (
289 (playingColor == 'w' && orientation == 'b') ||
290 (playingColor == 'b' && orientation == 'w')
291 );
292 const hasReserveTop = (
293 (myReserveTop && !!this.vr.reserve[playingColor]) ||
294 (!myReserveTop && !!this.vr.reserve[oppCol])
295 );
296 // "var" because must be reachable from outside this block
297 var hasReserveBottom = (
298 (myReserveTop && !!this.vr.reserve[oppCol]) ||
299 (!myReserveTop && !!this.vr.reserve[playingColor])
300 );
301 // Center reserves, assuming same number of pieces for each side:
302 const nbReservePieces = myReservePiecesArray.length;
303 const marginLeft =
304 ((100 - nbReservePieces * (100 / reserveSquareNb)) / 2) + "%";
305 if (hasReserveTop) {
306 var reserveTop =
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307 h(
308 "div",
309 {
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310 "class": {
311 game: true,
312 "reserve-div": true
313 },
314 style: {
315 "margin-left": marginLeft
316 }
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317 },
318 [
ffeaef85 319 h(
1e8a8386 320 "div",
ffeaef85 321 {
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322 "class": {
323 row: true,
324 "reserve-row": true
325 }
ffeaef85 326 },
1e8a8386 327 myReserveTop ? myReservePiecesArray : oppReservePiecesArray
ffeaef85 328 )
6808d7a1 329 ]
1e8a8386 330 );
cf2343ce 331 }
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332 if (hasReserveBottom) {
333 var reserveBottom =
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334 h(
335 "div",
336 {
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337 "class": {
338 game: true,
339 "reserve-div": true
340 },
341 style: {
342 "margin-left": marginLeft
343 }
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344 },
345 [
ffeaef85 346 h(
1e8a8386 347 "div",
ffeaef85 348 {
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349 "class": {
350 row: true,
351 "reserve-row": true
352 }
ffeaef85 353 },
1e8a8386 354 myReserveTop ? oppReservePiecesArray : myReservePiecesArray
ffeaef85 355 )
6808d7a1 356 ]
1e8a8386 357 );
cf2343ce 358 }
1e8a8386 359 if (hasReserveTop) elementArray.push(reserveTop);
cf2343ce 360 }
9d4a0218 361 elementArray.push(gameDiv);
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362 if (!!this.vr.reserve && hasReserveBottom)
363 elementArray.push(reserveBottom);
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364 const boardElt = document.getElementById("gamePosition");
365 // boardElt might be undefine (at first drawing)
6808d7a1 366 if (this.choices.length > 0 && !!boardElt) {
107dc1bd 367 const squareWidth = boardElt.offsetWidth / sizeY;
aafe9f16 368 const offset = [boardElt.offsetTop, boardElt.offsetLeft];
14edde72 369 const maxNbeltsPerRow = Math.min(this.choices.length, sizeY);
cdab5663 370 let topOffset = offset[0] + ((sizeX - 1) / 2) * squareWidth;
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371 let choicesHeight = squareWidth;
372 if (this.choices.length >= sizeY) {
373 // A second row is required (Eightpieces variant)
374 topOffset -= squareWidth / 2;
375 choicesHeight *= 2;
376 }
aafe9f16 377 const choices = h(
6808d7a1 378 "div",
aafe9f16 379 {
6808d7a1 380 attrs: { id: "choices" },
6ec2feb2 381 "class": { row: true },
aafe9f16 382 style: {
14edde72 383 top: topOffset + "px",
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384 left:
385 offset[1] +
14edde72 386 (squareWidth * Math.max(sizeY - this.choices.length, 0)) / 2 +
6808d7a1 387 "px",
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388 width: (maxNbeltsPerRow * squareWidth) + "px",
389 height: choicesHeight + "px"
6808d7a1 390 }
aafe9f16 391 },
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392 [ h(
393 "div",
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394 {
395 "class": { "full-width": true }
396 },
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397 this.choices.map(m => {
398 // A "choice" is a move
399 const applyMove = (e) => {
400 e.stopPropagation();
401 // Force a delay between move is shown and clicked
402 // (otherwise a "double-click" bug might occur)
403 if (Date.now() - this.clickTime < 200) return;
14edde72 404 this.choices = [];
78c23cd6 405 this.play(m);
14edde72 406 };
83cecc0f 407 const stopPropagation = (e) => { e.stopPropagation(); }
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408 const onClick =
409 this.mobileBrowser
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410 // Must cancel mousedown logic:
411 ? { touchstart: stopPropagation, touchend: applyMove }
412 : { mousedown: stopPropagation, mouseup: applyMove };
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413 return h(
414 "div",
415 {
6ec2feb2 416 "class": {
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417 board: true,
418 ["board" + sizeY]: true
aafe9f16 419 },
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420 style: {
421 width: (100 / maxNbeltsPerRow) + "%",
422 "padding-bottom": (100 / maxNbeltsPerRow) + "%"
423 }
424 },
425 [
426 h("img", {
427 attrs: {
428 src:
429 "/images/pieces/" +
173f11dc 430 // orientation: extra arg useful for some variants
c7550017 431 this.vr.getPPpath(m, this.orientation) +
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432 V.IMAGE_EXTENSION
433 },
6ec2feb2 434 "class": { "choice-piece": true },
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435 on: onClick
436 })
437 ]
438 );
439 })
440 ) ]
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441 );
442 elementArray.unshift(choices);
443 }
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444 let onEvents = {};
445 // NOTE: click = mousedown + mouseup
cafe0166 446 if (this.mobileBrowser) {
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447 onEvents = {
448 on: {
449 touchstart: this.mousedown,
450 touchmove: this.mousemove,
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451 touchend: this.mouseup
452 }
4b26ecb8 453 };
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454 }
455 else {
4b26ecb8 456 onEvents = {
cf2343ce 457 on: {
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458 mousedown: this.mousedown,
459 mousemove: this.mousemove,
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460 mouseup: this.mouseup,
461 contextmenu: this.blockContextMenu
6808d7a1 462 }
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463 };
464 }
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465 return (
466 h(
467 "div",
468 Object.assign({ attrs: { id: "rootBoardElement" } }, onEvents),
469 elementArray
470 )
471 );
472 },
473 updated: function() {
474 this.re_setDrawings();
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475 },
476 methods: {
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477 blockContextMenu: function(e) {
478 e.preventDefault();
479 e.stopPropagation();
480 return false;
481 },
482 cancelResetArrows: function() {
483 this.startArrow = null;
484 this.arrows = [];
485 this.circles = {};
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486 const curCanvas = document.getElementById("arrowCanvas");
487 if (!!curCanvas) curCanvas.parentNode.removeChild(curCanvas);
488 },
489 coordsToXY: function(coords, top, left, squareWidth) {
490 return {
491 // [1] for x and [0] for y because conventions in rules are inversed.
492 x: (
493 left + window.scrollX +
494 (
495 squareWidth *
496 (this.orientation == 'w' ? coords[1] : (V.size.y - coords[1]))
497 )
498 ),
499 y: (
500 top + window.scrollY +
501 (
502 squareWidth *
503 (this.orientation == 'w' ? coords[0] : (V.size.x - coords[0]))
504 )
505 )
506 };
49dad261 507 },
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508 computeEndArrow: function(start, end, top, left, squareWidth) {
509 const endCoords = this.coordsToXY(end, top, left, squareWidth);
510 const delta = [endCoords.x - start.x, endCoords.y - start.y];
511 const dist = Math.sqrt(delta[0] * delta[0] + delta[1] * delta[1]);
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512 // Simple heuristic for now, just remove 1/3 square.
513 // TODO: should depend on the orientation.
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514 const fracSqWidth = squareWidth / 3;
515 return {
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516 x: endCoords.x - delta[0] * fracSqWidth / dist,
517 y: endCoords.y - delta[1] * fracSqWidth / dist
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518 };
519 },
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520 drawCurrentArrow: function() {
521 const boardElt = document.getElementById("gamePosition");
522 const squareWidth = boardElt.offsetWidth / V.size.y;
523 const bPos = boardElt.getBoundingClientRect();
524 const aStart =
525 this.coordsToXY(
526 [this.startArrow[0] + 0.5, this.startArrow[1] + 0.5],
527 bPos.top, bPos.left, squareWidth);
528 const aEnd =
529 this.computeEndArrow(
530 aStart, [this.movingArrow[0] + 0.5, this.movingArrow[1] + 0.5],
531 bPos.top, bPos.left, squareWidth);
532 let currentArrow = document.getElementById("currentArrow");
533 const d =
534 "M" + aStart.x + "," + aStart.y + " " + "L" + aEnd.x + "," + aEnd.y;
535 const arrowWidth = squareWidth / 4;
536 if (!!currentArrow) currentArrow.setAttribute("d", d);
537 else {
538 let domArrow =
539 document.createElementNS("http://www.w3.org/2000/svg", "path");
540 domArrow.classList.add("svg-arrow");
541 domArrow.id = "currentArrow";
542 domArrow.setAttribute("d", d);
543 domArrow.style = "stroke-width:" + arrowWidth + "px";
544 document.getElementById("arrowCanvas")
545 .insertAdjacentElement("beforeend", domArrow);
546 }
547 },
548 addArrow: function(arrow) {
549 this.arrows.push(arrow);
550 // Also add to DOM:
551 const boardElt = document.getElementById("gamePosition");
552 const squareWidth = boardElt.offsetWidth / V.size.y;
553 const bPos = boardElt.getBoundingClientRect();
554 const newArrow =
555 this.getSvgArrow(arrow, bPos.top, bPos.left, squareWidth);
556 document.getElementById("arrowCanvas")
557 .insertAdjacentElement("beforeend", newArrow);
558 },
559 getSvgArrow: function(arrow, top, left, squareWidth) {
560 const aStart =
561 this.coordsToXY(
562 [arrow.start[0] + 0.5, arrow.start[1] + 0.5],
563 top, left, squareWidth);
564 const aEnd =
565 this.computeEndArrow(
566 aStart, [arrow.end[0] + 0.5, arrow.end[1] + 0.5],
567 top, left, squareWidth);
568 const arrowWidth = squareWidth / 4;
569 let path =
570 document.createElementNS("http://www.w3.org/2000/svg", "path");
571 path.classList.add("svg-arrow");
572 path.setAttribute(
573 "d",
574 "M" + aStart.x + "," + aStart.y + " " + "L" + aEnd.x + "," + aEnd.y
575 );
576 path.style = "stroke-width:" + arrowWidth + "px";
577 return path;
578 },
579 re_setDrawings: function() {
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580 // Add some drawing on board (for some variants + arrows and circles)
581 const boardElt = document.getElementById("gamePosition");
582 if (!boardElt) return;
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583 // Remove current canvas, if any
584 const curCanvas = document.getElementById("arrowCanvas");
585 if (!!curCanvas) curCanvas.parentNode.removeChild(curCanvas);
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586 const squareWidth = boardElt.offsetWidth / V.size.y;
587 const bPos = boardElt.getBoundingClientRect();
588 let svgArrows = [];
589 this.arrows.forEach(a => {
590 svgArrows.push(this.getSvgArrow(a, bPos.top, bPos.left, squareWidth));
591 });
592 let vLines = [];
593 if (!!V.Lines) {
594 V.Lines.forEach(line => {
595 const lStart =
596 this.coordsToXY(line[0], bPos.top, bPos.left, squareWidth);
597 const lEnd =
598 this.coordsToXY(line[1], bPos.top, bPos.left, squareWidth);
599 let path =
600 document.createElementNS("http://www.w3.org/2000/svg", "path");
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601 if (line[0][0] == line[1][0] || line[0][1] == line[1][1])
602 path.classList.add("svg-line");
603 else
604 // "Diagonals" are drawn with a lighter color (TODO: generalize)
605 path.classList.add("svg-diag");
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606 path.setAttribute(
607 "d",
608 "M" + lStart.x + "," + lStart.y + " " +
609 "L" + lEnd.x + "," + lEnd.y
610 );
611 vLines.push(path);
612 });
613 }
614 let arrowCanvas =
615 document.createElementNS("http://www.w3.org/2000/svg", "svg");
616 arrowCanvas.id = "arrowCanvas";
617 arrowCanvas.setAttribute("stroke", "none");
618 let defs =
619 document.createElementNS("http://www.w3.org/2000/svg", "defs");
620 const arrowWidth = squareWidth / 4;
621 let marker =
622 document.createElementNS("http://www.w3.org/2000/svg", "marker");
623 marker.id = "arrow";
624 marker.setAttribute("markerWidth", (2 * arrowWidth) + "px");
625 marker.setAttribute("markerHeight", (3 * arrowWidth) + "px");
626 marker.setAttribute("markerUnits", "userSpaceOnUse");
627 marker.setAttribute("refX", "0");
628 marker.setAttribute("refY", (1.5 * arrowWidth) + "px");
629 marker.setAttribute("orient", "auto");
630 let head =
631 document.createElementNS("http://www.w3.org/2000/svg", "path");
632 head.classList.add("arrow-head");
633 head.setAttribute(
634 "d",
635 "M0,0 L0," + (3 * arrowWidth) + " L" +
636 (2 * arrowWidth) + "," + (1.5 * arrowWidth) + " z"
637 );
638 marker.appendChild(head);
639 defs.appendChild(marker);
640 arrowCanvas.appendChild(defs);
641 svgArrows.concat(vLines).forEach(av => arrowCanvas.appendChild(av));
642 document.getElementById("rootBoardElement").appendChild(arrowCanvas);
643 },
cf2343ce 644 mousedown: function(e) {
28b32b4f 645 e.preventDefault();
1ef65040 646 if (!this.mobileBrowser && e.which != 3)
49dad261
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647 // Cancel current drawing and circles, if any
648 this.cancelResetArrows();
1ef65040 649 if (this.mobileBrowser || e.which == 1) {
49dad261
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650 // Mouse left button
651 if (!this.start) {
8764102a
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652 this.containerPos =
653 document.getElementById("boardContainer").getBoundingClientRect();
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654 // NOTE: classList[0] is enough: 'piece' is the first assigned class
655 const withPiece = (e.target.classList[0] == "piece");
49dad261 656 // Show possible moves if current player allowed to play
9a7a1ccc
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657 const startSquare =
658 getSquareFromId(withPiece ? e.target.parentNode.id : e.target.id);
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659 this.possibleMoves = [];
660 const color = this.analyze ? this.vr.turn : this.userColor;
9a7a1ccc
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661 if (this.vr.canIplay(color, startSquare)) {
662 // Emit the click event which could be used by some variants
663 const targetId =
664 (withPiece ? e.target.parentNode.id : e.target.id);
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665 const sq = getSquareFromId(targetId);
666 this.$emit("click-square", sq);
667 if (withPiece && !this.vr.onlyClick(sq)) {
9a7a1ccc 668 this.possibleMoves = this.vr.getPossibleMovesFrom(startSquare);
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669 if (this.possibleMoves.length > 0) {
670 // For potential drag'n drop, remember start coordinates
671 // (to center the piece on mouse cursor)
672 let parent = e.target.parentNode; //surrounding square
673 const rect = parent.getBoundingClientRect();
674 this.start = {
675 x: rect.x + rect.width / 2,
676 y: rect.y + rect.width / 2,
677 id: parent.id
678 };
679 // Add the moving piece to the board, just after current image
680 this.selectedPiece = e.target.cloneNode();
681 Object.assign(
682 this.selectedPiece.style,
683 {
684 position: "absolute",
685 top: 0,
686 display: "inline-block",
687 zIndex: 3000
688 }
689 );
690 parent.insertBefore(this.selectedPiece, e.target.nextSibling);
691 }
49dad261 692 }
9a7a1ccc 693 }
49dad261 694 }
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695 else this.processMoveAttempt(e);
696 }
697 else if (e.which == 3) {
1ef65040 698 // Mouse right button
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699 this.containerPos =
700 document.getElementById("gamePosition").getBoundingClientRect();
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701 let elem = e.target;
702 // Next loop because of potential marks
703 while (elem.tagName == "IMG") elem = elem.parentNode;
107dc1bd 704 this.startArrow = getSquareFromId(elem.id);
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705 }
706 },
707 mousemove: function(e) {
708 if (!this.selectedPiece && !this.startArrow) return;
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709 // Cancel if off boardContainer
710 const [offsetX, offsetY] =
711 this.mobileBrowser
10addfff 712 ? [e.changedTouches[0].clientX, e.changedTouches[0].clientY]
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713 : [e.clientX, e.clientY];
714 if (
715 offsetX < this.containerPos.left ||
716 offsetX > this.containerPos.right ||
717 offsetY < this.containerPos.top ||
718 offsetY > this.containerPos.bottom
719 ) {
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720 if (!!this.selectedPiece) {
721 this.selectedPiece.parentNode.removeChild(this.selectedPiece);
722 delete this.selectedPiece;
723 this.selectedPiece = null;
724 this.start = null;
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725 this.possibleMoves = []; //in case of
726 this.click = "";
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727 let selected = document.querySelector(".ghost");
728 if (!!selected) selected.classList.remove("ghost");
729 }
730 else {
731 this.startArrow = null;
732 this.movingArrow = null;
733 const currentArrow = document.getElementById("currentArrow");
734 if (!!currentArrow)
735 currentArrow.parentNode.removeChild(currentArrow);
736 }
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737 return;
738 }
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739 e.preventDefault();
740 if (!!this.selectedPiece) {
741 // There is an active element: move it around
28b32b4f
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742 Object.assign(
743 this.selectedPiece.style,
744 {
49dad261
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745 left: offsetX - this.start.x + "px",
746 top: offsetY - this.start.y + "px"
28b32b4f
BA
747 }
748 );
28b32b4f 749 }
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750 else {
751 let elem = e.target;
752 // Next loop because of potential marks
753 while (elem.tagName == "IMG") elem = elem.parentNode;
754 // To center the arrow in square:
107dc1bd
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755 const movingCoords = getSquareFromId(elem.id);
756 if (
757 movingCoords[0] != this.startArrow[0] ||
758 movingCoords[1] != this.startArrow[1]
759 ) {
760 this.movingArrow = movingCoords;
761 this.drawCurrentArrow();
28b32b4f 762 }
49dad261 763 }
cf2343ce
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764 },
765 mouseup: function(e) {
28b32b4f 766 e.preventDefault();
1ef65040 767 if (this.mobileBrowser || e.which == 1) {
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768 if (!this.selectedPiece) return;
769 // Drag'n drop. Selected piece is no longer needed:
770 this.selectedPiece.parentNode.removeChild(this.selectedPiece);
771 delete this.selectedPiece;
772 this.selectedPiece = null;
773 this.processMoveAttempt(e);
1ef65040 774 } else if (e.which == 3) {
8764102a 775 if (!this.startArrow) return;
1ef65040 776 // Mouse right button
107dc1bd 777 this.movingArrow = null;
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778 this.processArrowAttempt(e);
779 }
28b32b4f 780 },
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781 // Called by BaseGame after partially undoing multi-moves:
782 resetCurrentAttempt: function() {
783 this.possibleMoves = [];
784 this.start = null;
785 this.click = "";
786 this.selectedPiece = null;
787 },
28b32b4f
BA
788 processMoveAttempt: function(e) {
789 // Obtain the move from start and end squares
cafe0166
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790 const [offsetX, offsetY] =
791 this.mobileBrowser
10addfff 792 ? [e.changedTouches[0].clientX, e.changedTouches[0].clientY]
cafe0166 793 : [e.clientX, e.clientY];
cf2343ce 794 let landing = document.elementFromPoint(offsetX, offsetY);
cf2343ce 795 // Next condition: classList.contains(piece) fails because of marks
6808d7a1 796 while (landing.tagName == "IMG") landing = landing.parentNode;
28b32b4f
BA
797 if (this.start.id == landing.id) {
798 if (this.click == landing.id) {
799 // Second click on same square: cancel current move
800 this.possibleMoves = [];
801 this.start = null;
802 this.click = "";
803 } else this.click = landing.id;
cf2343ce 804 return;
28b32b4f
BA
805 }
806 this.start = null;
bd76b456 807 // OK: process move attempt, landing is a square node
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808 let endSquare = getSquareFromId(landing.id);
809 let moves = this.findMatchingMoves(endSquare);
810 this.possibleMoves = [];
3a2a7b5f
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811 if (moves.length > 1) {
812 this.clickTime = Date.now();
813 this.choices = moves;
814 } else if (moves.length == 1) this.play(moves[0]);
28b32b4f 815 // else: forbidden move attempt
cf2343ce 816 },
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817 processArrowAttempt: function(e) {
818 // Obtain the arrow from start and end squares
819 const [offsetX, offsetY] = [e.clientX, e.clientY];
820 let landing = document.elementFromPoint(offsetX, offsetY);
821 // Next condition: classList.contains(piece) fails because of marks
822 while (landing.tagName == "IMG") landing = landing.parentNode;
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823 const landingCoords = getSquareFromId(landing.id);
824 if (
825 this.startArrow[0] == landingCoords[0] &&
826 this.startArrow[1] == landingCoords[1]
827 ) {
49dad261
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828 // Draw (or erase) a circle
829 this.$set(this.circles, landing.id, !this.circles[landing.id]);
107dc1bd 830 }
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831 else {
832 // OK: add arrow, landing is a new square
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833 const currentArrow = document.getElementById("currentArrow");
834 currentArrow.parentNode.removeChild(currentArrow);
835 this.addArrow({
836 start: this.startArrow,
837 end: landingCoords
49dad261
BA
838 });
839 }
840 this.startArrow = null;
841 },
cf2343ce
BA
842 findMatchingMoves: function(endSquare) {
843 // Run through moves list and return the matching set (if promotions...)
28b32b4f
BA
844 return (
845 this.possibleMoves.filter(m => {
846 return (endSquare[0] == m.end.x && endSquare[1] == m.end.y);
847 })
848 );
cf2343ce
BA
849 },
850 play: function(move) {
6808d7a1
BA
851 this.$emit("play-move", move);
852 }
853 }
cf2343ce
BA
854};
855</script>
4473050c 856
107dc1bd
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857<style lang="sass">
858// SVG dynamically added, so not scoped
859#arrowCanvas
860 pointer-events: none
861 position: absolute
862 top: 0
863 left: 0
864 width: 100%
865 height: 100%
866
867.svg-arrow
868 opacity: 0.65
869 stroke: #5f0e78
870 fill: none
871 marker-end: url(#arrow)
872
873.svg-line
874 stroke: black
875
8efb985e
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876.svg-diag
877 stroke: grey
878
107dc1bd
BA
879.arrow-head
880 fill: #5f0e78
881</style>
882
41c80bb6 883<style lang="sass" scoped>
26d8a01a
BA
884@import "@/styles/_board_squares_img.sass";
885
ffeaef85
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886//.game.reserve-div
887 // TODO: would be cleaner to restrict width so that it doesn't overflow
888 // Commented out because pieces would disappear over the board otherwise:
889 //overflow: hidden
50aed5a1 890.reserve-count
ffeaef85
BA
891 width: 100%
892 text-align: center
893 display: inline-block
894 position: absolute
9d4a0218 895.reserve-row
50aed5a1
BA
896 margin-bottom: 15px
897
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898.full-width
899 width: 100%
41cb9b94 900
50aed5a1 901.game
28b32b4f 902 user-select: none
cf94b843
BA
903 width: 100%
904 margin: 0
50aed5a1
BA
905 .board
906 cursor: pointer
50aed5a1
BA
907
908#choices
28b32b4f 909 user-select: none
168a5e4c
BA
910 margin: 0
911 position: absolute
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912 z-index: 300
913 overflow-y: inherit
914 background-color: rgba(0,0,0,0)
915 img
916 cursor: pointer
917 background-color: #e6ee9c
918 &:hover
919 background-color: skyblue
920 &.choice-piece
921 width: 100%
922 height: auto
923 display: block
924
50aed5a1 925img.ghost
ffeaef85 926 // NOTE: no need to set z-index here, since opacity is low
50aed5a1 927 position: absolute
28b32b4f 928 opacity: 0.5
50aed5a1
BA
929 top: 0
930
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931.incheck-light
932 background-color: rgba(204, 51, 0, 0.7) !important
933.incheck-dark
934 background-color: rgba(204, 51, 0, 0.9) !important
50aed5a1 935
28b32b4f
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936// TODO: no predefined highlight colors, but layers. How?
937
90df90bc
BA
938.hover-highlight:hover
939 // TODO: color dependant on board theme, or inner border...
00eef1ca 940 background-color: #C571E6 !important
90df90bc 941
f63ba277
BA
942.highlight
943 &.light-square
944 &.lichess
945 background-color: #cdd26a
946 &.chesscom
947 background-color: #f7f783
948 &.chesstempo
949 background-color: #9f9fff
950 &.orangecc
951 background-color: #fef273
952 &.dark-square
953 &.lichess
954 background-color: #aaa23a
955 &.chesscom
956 background-color: #bacb44
957 &.chesstempo
958 background-color: #557fff
959 &.orangecc
960 background-color: #e8c525
961 &.middle-square
962 &.lichess
963 background-color: #BCBA52
964 &.chesscom
965 background-color: #D9E164
966 &.chesstempo
967 background-color: #7A8FFF
968 &.orangecc
969 background-color: #F3DC4C
4473050c 970</style>