possibleMoves: [], //filled after each valid click/dragstart
choices: [], //promotion pieces, or checkered captures... (as moves)
selectedPiece: null, //moving piece (or clicked piece)
- start: {}, //pixels coordinates + id of starting square (click or drag)
+ start: null, //pixels coordinates + id of starting square (click or drag)
+ click: "",
settings: store.state.settings
};
},
},
methods: {
mousedown: function(e) {
- // Abort if a piece is already being processed, or target is not a piece.
- // NOTE: just looking at classList[0] because piece is the first assigned class
- if (!!this.selectedPiece || e.target.classList[0] != "piece") return;
- e.preventDefault(); //disable native drag & drop
- let parent = e.target.parentNode; //the surrounding square
- // Next few lines to center the piece on mouse cursor
- let rect = parent.getBoundingClientRect();
- this.start = {
- x: rect.x + rect.width / 2,
- y: rect.y + rect.width / 2,
- id: parent.id
- };
- this.selectedPiece = e.target.cloneNode();
- let spStyle = this.selectedPiece.style;
- spStyle.position = "absolute";
- spStyle.top = 0;
- spStyle.display = "inline-block";
- spStyle.zIndex = 3000;
- const startSquare = getSquareFromId(parent.id);
- this.possibleMoves = [];
- const color = this.analyze ? this.vr.turn : this.userColor;
- if (this.vr.canIplay(color, startSquare))
- this.possibleMoves = this.vr.getPossibleMovesFrom(startSquare);
- // Next line add moving piece just after current image
- // (required for Crazyhouse reserve)
- parent.insertBefore(this.selectedPiece, e.target.nextSibling);
+ e.preventDefault();
+ if (!this.start) {
+ // Start square must contain a piece.
+ // NOTE: classList[0] is enough: 'piece' is the first assigned class
+ if (e.target.classList[0] != "piece") return;
+ let parent = e.target.parentNode; //surrounding square
+ // Show possible moves if current player allowed to play
+ const startSquare = getSquareFromId(parent.id);
+ this.possibleMoves = [];
+ const color = this.analyze ? this.vr.turn : this.userColor;
+ if (this.vr.canIplay(color, startSquare))
+ this.possibleMoves = this.vr.getPossibleMovesFrom(startSquare);
+ // For potential drag'n drop, remember start coordinates
+ // (to center the piece on mouse cursor)
+ let rect = parent.getBoundingClientRect();
+ this.start = {
+ x: rect.x + rect.width / 2,
+ y: rect.y + rect.width / 2,
+ id: parent.id
+ };
+ // Add the moving piece to the board, just after current image
+ this.selectedPiece = e.target.cloneNode();
+ Object.assign(
+ this.selectedPiece.style,
+ {
+ position: "absolute",
+ top: 0,
+ display: "inline-block",
+ zIndex: 3000
+ }
+ );
+ parent.insertBefore(this.selectedPiece, e.target.nextSibling);
+ } else {
+ this.processMoveAttempt(e);
+ }
},
mousemove: function(e) {
if (!this.selectedPiece) return;
+ e.preventDefault();
// There is an active element: move it around
const [offsetX, offsetY] =
this.mobileBrowser
? [e.changedTouches[0].pageX, e.changedTouches[0].pageY]
: [e.clientX, e.clientY];
- this.selectedPiece.style.left = offsetX - this.start.x + "px";
- this.selectedPiece.style.top = offsetY - this.start.y + "px";
+ Object.assign(
+ this.selectedPiece.style,
+ {
+ left: offsetX - this.start.x + "px",
+ top: offsetY - this.start.y + "px"
+ }
+ );
},
mouseup: function(e) {
if (!this.selectedPiece) return;
- // There is an active element: obtain the move from start and end squares
- this.selectedPiece.style.zIndex = -3000; //HACK to find square from final coords
+ e.preventDefault();
+ // Drag'n drop. Selected piece is no longer needed:
+ this.selectedPiece.parentNode.removeChild(this.selectedPiece);
+ delete this.selectedPiece;
+ this.selectedPiece = null;
+ this.processMoveAttempt(e);
+ },
+ processMoveAttempt: function(e) {
+ // Obtain the move from start and end squares
const [offsetX, offsetY] =
this.mobileBrowser
? [e.changedTouches[0].pageX, e.changedTouches[0].pageY]
: [e.clientX, e.clientY];
let landing = document.elementFromPoint(offsetX, offsetY);
- this.selectedPiece.style.zIndex = 3000;
// Next condition: classList.contains(piece) fails because of marks
while (landing.tagName == "IMG") landing = landing.parentNode;
- if (this.start.id == landing.id)
- // One or multi clicks on same piece
+ if (this.start.id == landing.id) {
+ if (this.click == landing.id) {
+ // Second click on same square: cancel current move
+ this.possibleMoves = [];
+ this.start = null;
+ this.click = "";
+ } else this.click = landing.id;
return;
+ }
+ this.start = null;
// OK: process move attempt, landing is a square node
let endSquare = getSquareFromId(landing.id);
let moves = this.findMatchingMoves(endSquare);
this.possibleMoves = [];
if (moves.length > 1) this.choices = moves;
else if (moves.length == 1) this.play(moves[0]);
- // Else: impossible move
- this.selectedPiece.parentNode.removeChild(this.selectedPiece);
- delete this.selectedPiece;
- this.selectedPiece = null;
+ // else: forbidden move attempt
},
findMatchingMoves: function(endSquare) {
// Run through moves list and return the matching set (if promotions...)
- let moves = [];
- this.possibleMoves.forEach(function(m) {
- if (endSquare[0] == m.end.x && endSquare[1] == m.end.y) moves.push(m);
- });
- return moves;
+ return (
+ this.possibleMoves.filter(m => {
+ return (endSquare[0] == m.end.x && endSquare[1] == m.end.y);
+ })
+ );
},
play: function(move) {
this.$emit("play-move", move);
// NOTE: no variants with reserve of size != 8
.game
+ user-select: none
width: 100%
margin: 0
.board
cursor: pointer
#choices
+ user-select: none
margin: 0
position: absolute
z-index: 300
img.ghost
position: absolute
- opacity: 0.4
+ opacity: 0.5
top: 0
-.highlight-light
- background-color: rgba(0, 204, 102, 0.7) !important
-.highlight-dark
- background-color: rgba(0, 204, 102, 0.9) !important
-
.incheck-light
background-color: rgba(204, 51, 0, 0.7) !important
.incheck-dark
background-color: #6f8f57;
.light-square.chesstempo
- background-color: #fdfdfd;
+ background-color: #dfdfdf;
.dark-square.chesstempo
- background-color: #88a0a8;
+ background-color: #7287b6;
+
+// TODO: no predefined highlight colors, but layers. How?
+
+.light-square.lichess.highlight-light
+ background-color: #cdd26a !important
+.dark-square.lichess.highlight-dark
+ background-color: #aaa23a !important
+
+.light-square.chesscom.highlight-light
+ background-color: #f7f783 !important
+.dark-square.chesscom.highlight-dark
+ background-color: #bacb44 !important
+
+.light-square.chesstempo.highlight-light
+ background-color: #9f9fff !important
+.dark-square.chesstempo.highlight-dark
+ background-color: #557fff !important
+
</style>
projects / vchess.git / blobdiff