cd3373c4cacaee72917dfde98474fd99a3c6ce59
1 // This can work for squared boards (2 or 4 players), with some adaptations (TODO)
2 // TODO: for 3 players, write a "board3.js"
3 Vue
.component('my-board', {
4 // Last move cannot be guessed from here, and is required to highlight squares
5 // vr: object to check moves, print board...
6 // mode: HH, HC or analyze
7 // userColor: for mode HH or HC
8 props: ["vr","lastMove","mode","orientation","userColor"],
11 hints: (!localStorage
["hints"] ? true : localStorage
["hints"] === "1"),
12 bcolor: localStorage
["bcolor"] || "lichess", //lichess, chesscom or chesstempo
13 possibleMoves: [], //filled after each valid click/dragstart
14 choices: [], //promotion pieces, or checkered captures... (as moves)
15 selectedPiece: null, //moving piece (or clicked piece)
17 start: {}, //pixels coordinates + id of starting square (click or drag)
23 const [sizeX
,sizeY
] = [V
.size
.x
,V
.size
.y
];
24 // Precompute hints squares to facilitate rendering
25 let hintSquares
= doubleArray(sizeX
, sizeY
, false);
26 this.possibleMoves
.forEach(m
=> { hintSquares
[m
.end
.x
][m
.end
.y
] = true; });
27 // Also precompute in-check squares
28 let incheckSq
= doubleArray(sizeX
, sizeY
, false);
29 this.incheck
.forEach(sq
=> { incheckSq
[sq
[0]][sq
[1]] = true; });
30 const squareWidth
= 40; //TODO: compute this
34 attrs: { "id": "choices" },
35 'class': { 'row': true },
37 "display": this.choices
.length
>0?"block":"none",
38 "top": "-" + ((sizeY
/2)*squareWidth+squareWidth/2) + "px",
39 "width": (this.choices
.length
* squareWidth
) + "px",
40 "height": squareWidth
+ "px",
43 this.choices
.map(m
=> { //a "choice" is a move
48 ['board'+sizeY
]: true,
51 'width': (100/this.choices
.length
) + "%",
52 'padding-bottom': (100/this.choices
.length
) + "%",
57 attrs: { "src": '/images/pieces/' +
58 V
.getPpath(m
.appear
[0].c
+m
.appear
[0].p
) + '.svg' },
59 'class': { 'choice-piece': true },
61 "click": e
=> { this.play(m
); this.choices
=[]; },
62 // NOTE: add 'touchstart' event to fix a problem on smartphones
63 "touchstart": e
=> { this.play(m
); this.choices
=[]; },
70 // Create board element (+ reserves if needed by variant or mode)
71 const lm
= this.lastMove
;
72 const showLight
= this.hints
&& variant
.name
!= "Dark";
81 [...Array(sizeX
).keys()].map(i
=> {
82 let ci
= (this.orientation
=='w' ? i : sizeX
-i
-1);
89 style: { 'opacity': this.choices
.length
>0?"0.5":"1" },
91 [...Array(sizeY
).keys()].map(j
=> {
92 let cj
= (this.orientation
=='w' ? j : sizeY
-j
-1);
94 if (this.vr
.board
[ci
][cj
] != V
.EMPTY
&& (variant
.name
!="Dark"
95 || this.gameOver
|| this.mode
== "analyze"
96 || this.vr
.enlightened
[this.userColor
][ci
][cj
]))
104 'ghost': !!this.selectedPiece
105 && this.selectedPiece
.parentNode
.id
== "sq-"+ci
+"-"+cj
,
108 src: "/images/pieces/" +
109 V
.getPpath(this.vr
.board
[ci
][cj
]) + ".svg",
115 if (this.hints
&& hintSquares
[ci
][cj
])
125 src: "/images/mark.svg",
136 ['board'+sizeY
]: true,
137 'light-square': (i
+j
)%2==0,
138 'dark-square': (i
+j
)%2==1,
140 'in-shadow': variant
.name
=="Dark" && !this.gameOver
141 && this.mode
!= "analyze"
142 && !this.vr
.enlightened
[this.userColor
][ci
][cj
],
143 'highlight': showLight
&& !!lm
&& lm
.end
.x
== ci
&& lm
.end
.y
== cj
,
144 'incheck': showLight
&& incheckSq
[ci
][cj
],
147 id: getSquareId({x:ci
,y:cj
}),
156 let elementArray
= [choices
, gameDiv
];
157 if (!!this.vr
.reserve
)
159 const shiftIdx
= (this.userColor
=="w" ? 0 : 1);
160 let myReservePiecesArray
= [];
161 for (let i
=0; i
<V
.RESERVE_PIECES
.length
; i
++)
163 myReservePiecesArray
.push(h('div',
165 'class': {'board':true, ['board'+sizeY
]:true},
166 attrs: { id: getSquareId({x:sizeX
+shiftIdx
,y:i
}) }
171 'class': {"piece":true, "reserve":true},
173 "src": "/images/pieces/" +
174 this.vr
.getReservePpath(this.userColor
,i
) + ".svg",
178 {"class": { "reserve-count": true } },
179 [ this.vr
.reserve
[this.userColor
][V
.RESERVE_PIECES
[i
]] ]
183 let oppReservePiecesArray
= [];
184 const oppCol
= V
.GetOppCol(this.userColor
);
185 for (let i
=0; i
<V
.RESERVE_PIECES
.length
; i
++)
187 oppReservePiecesArray
.push(h('div',
189 'class': {'board':true, ['board'+sizeY
]:true},
190 attrs: { id: getSquareId({x:sizeX
+(1-shiftIdx
),y:i
}) }
195 'class': {"piece":true, "reserve":true},
197 "src": "/images/pieces/" +
198 this.vr
.getReservePpath(oppCol
,i
) + ".svg",
202 {"class": { "reserve-count": true } },
203 [ this.vr
.reserve
[oppCol
][V
.RESERVE_PIECES
[i
]] ]
207 let reserves
= h('div',
219 "reserve-row-1": true,
225 { 'class': { 'row': true }},
226 oppReservePiecesArray
230 elementArray
.push(reserves
);
238 "col-md-offset-1":true,
240 "col-lg-offset-2":true,
242 // NOTE: click = mousedown + mouseup
244 mousedown: this.mousedown
,
245 mousemove: this.mousemove
,
246 mouseup: this.mouseup
,
247 touchstart: this.mousedown
,
248 touchmove: this.mousemove
,
249 touchend: this.mouseup
,
256 mousedown: function(e
) {
257 e
= e
|| window
.event
;
260 while (!ingame
&& elem
!== null)
262 if (elem
.classList
.contains("game"))
267 elem
= elem
.parentElement
;
269 if (!ingame
) //let default behavior (click on button...)
271 e
.preventDefault(); //disable native drag & drop
272 if (!this.selectedPiece
&& e
.target
.classList
.contains("piece"))
274 // Next few lines to center the piece on mouse cursor
275 let rect
= e
.target
.parentNode
.getBoundingClientRect();
277 x: rect
.x
+ rect
.width
/2,
278 y: rect
.y
+ rect
.width
/2,
279 id: e
.target
.parentNode
.id
281 this.selectedPiece
= e
.target
.cloneNode();
282 this.selectedPiece
.style
.position
= "absolute";
283 this.selectedPiece
.style
.top
= 0;
284 this.selectedPiece
.style
.display
= "inline-block";
285 this.selectedPiece
.style
.zIndex
= 3000;
286 const startSquare
= getSquareFromId(e
.target
.parentNode
.id
);
287 this.possibleMoves
= [];
288 const color
= this.mode
=="analyze" || this.gameOver
291 if (this.vr
.canIplay(color
,startSquare
))
292 this.possibleMoves
= this.vr
.getPossibleMovesFrom(startSquare
);
293 // Next line add moving piece just after current image
294 // (required for Crazyhouse reserve)
295 e
.target
.parentNode
.insertBefore(this.selectedPiece
, e
.target
.nextSibling
);
298 mousemove: function(e
) {
299 if (!this.selectedPiece
)
301 e
= e
|| window
.event
;
302 // If there is an active element, move it around
303 if (!!this.selectedPiece
)
305 const [offsetX
,offsetY
] = !!e
.clientX
306 ? [e
.clientX
,e
.clientY
] //desktop browser
307 : [e
.changedTouches
[0].pageX
, e
.changedTouches
[0].pageY
]; //smartphone
308 this.selectedPiece
.style
.left
= (offsetX
-this.start
.x
) + "px";
309 this.selectedPiece
.style
.top
= (offsetY
-this.start
.y
) + "px";
312 mouseup: function(e
) {
313 if (!this.selectedPiece
)
315 e
= e
|| window
.event
;
316 // Read drop target (or parentElement, parentNode... if type == "img")
317 this.selectedPiece
.style
.zIndex
= -3000; //HACK to find square from final coords
318 const [offsetX
,offsetY
] = !!e
.clientX
319 ? [e
.clientX
,e
.clientY
]
320 : [e
.changedTouches
[0].pageX
, e
.changedTouches
[0].pageY
];
321 let landing
= document
.elementFromPoint(offsetX
, offsetY
);
322 this.selectedPiece
.style
.zIndex
= 3000;
323 // Next condition: classList.contains(piece) fails because of marks
324 while (landing
.tagName
== "IMG")
325 landing
= landing
.parentNode
;
326 if (this.start
.id
== landing
.id
)
328 // A click: selectedPiece and possibleMoves are already filled
331 // OK: process move attempt
332 let endSquare
= getSquareFromId(landing
.id
);
333 let moves
= this.findMatchingMoves(endSquare
);
334 this.possibleMoves
= [];
335 if (moves
.length
> 1)
336 this.choices
= moves
;
337 else if (moves
.length
==1)
339 // Else: impossible move
340 this.selectedPiece
.parentNode
.removeChild(this.selectedPiece
);
341 delete this.selectedPiece
;
342 this.selectedPiece
= null;
344 findMatchingMoves: function(endSquare
) {
345 // Run through moves list and return the matching set (if promotions...)
347 this.possibleMoves
.forEach(function(m
) {
348 if (endSquare
[0] == m
.end
.x
&& endSquare
[1] == m
.end
.y
)
353 play: function(move) {
354 this.$emit('play-move', move);