choices: [], //promotion pieces, or checkered captures... (as moves)
selectedPiece: null, //moving piece (or clicked piece)
start: null, //pixels coordinates + id of starting square (click or drag)
+ startArrow: null,
+ movingArrow: { x: -1, y: -1 },
+ arrows: [], //object of {start: x,y / end: x,y}
+ circles: {}, //object of squares' ID --> true (TODO: use a set?)
click: "",
clickTime: 0,
settings: store.state.settings
},
[...Array(sizeY).keys()].map(j => {
const cj = orientation == "w" ? j : sizeY - j - 1;
+ const squareId = "sq-" + ci + "-" + cj;
let elems = [];
if (showPiece(ci, cj)) {
elems.push(
piece: true,
ghost:
!!this.selectedPiece &&
- this.selectedPiece.parentNode.id == "sq-" + ci + "-" + cj
+ this.selectedPiece.parentNode.id == squareId
},
attrs: {
src:
})
);
}
+ if (!!this.circles[squareId]) {
+ elems.push(
+ h("img", {
+ "class": {
+ "circle-square": true
+ },
+ attrs: {
+ src: "/images/circle.svg"
+ }
+ })
+ );
+ }
const lightSquare = (ci + cj) % 2 == lightSquareMod;
return h(
"div",
);
elementArray.unshift(choices);
}
+ if (
+ !this.mobileBrowser &&
+ (this.arrows.length > 0 || this.movingArrow.x >= 0)
+ ) {
+ let svgArrows = [];
+ this.arrows.forEach(a => {
+ svgArrows.push(
+ h(
+ "path",
+ {
+ "class": { "svg-arrow": true },
+ attrs: {
+ d: (
+ "M" + a.start.x + "," + a.start.y + " " +
+ "L" + a.end.x + "," + a.end.y
+ )
+ }
+ }
+ )
+ );
+ });
+ if (this.movingArrow.x >= 0) {
+ svgArrows.push(
+ h(
+ "path",
+ {
+ "class": { "svg-arrow": true },
+ attrs: {
+ d: (
+ "M" + this.startArrow.x + "," + this.startArrow.y + " " +
+ "L" + this.movingArrow.x + "," + this.movingArrow.y
+ )
+ }
+ }
+ )
+ );
+ }
+ // Add SVG element for drawing arrows
+ elementArray.push(
+ h(
+ "svg",
+ {
+ attrs: {
+ id: "arrowCanvas",
+ stroke: "none"
+ }
+ },
+ [
+ h(
+ "defs",
+ {},
+ [
+ h(
+ "marker",
+ {
+ attrs: {
+ id: "arrow",
+ markerWidth: "2",
+ markerHeight: "2",
+ markerUnits: "strokeWidth",
+ refX: "0",
+ refY: "1",
+ orient: "auto"
+ }
+ },
+ [
+ h(
+ "path",
+ {
+ attrs: {
+ d: "M0,0 L0,2 L2,1 z",
+ style: "fill: blue"
+ }
+ }
+ )
+ ]
+ )
+ ]
+ )
+ ].concat(svgArrows)
+ )
+ );
+ }
let onEvents = {};
// NOTE: click = mousedown + mouseup
if (this.mobileBrowser) {
on: {
mousedown: this.mousedown,
mousemove: this.mousemove,
- mouseup: this.mouseup
+ mouseup: this.mouseup,
+ contextmenu: this.blockContextMenu
}
};
}
return h("div", onEvents, elementArray);
},
methods: {
+ blockContextMenu: function(e) {
+ e.preventDefault();
+ e.stopPropagation();
+ return false;
+ },
+ cancelResetArrows: function() {
+ this.startArrow = null;
+ this.arrows = [];
+ this.circles = {};
+ },
mousedown: function(e) {
+ if (!([1, 3].includes(e.which))) return;
e.preventDefault();
- if (!this.start) {
- // NOTE: classList[0] is enough: 'piece' is the first assigned class
- const withPiece = e.target.classList[0] == "piece";
- // Emit the click event which could be used by some variants
- this.$emit(
- "click-square",
- getSquareFromId(withPiece ? e.target.parentNode.id : e.target.id)
- );
- // Start square must contain a piece.
- if (!withPiece) return;
- let parent = e.target.parentNode; //surrounding square
- // Show possible moves if current player allowed to play
- const startSquare = getSquareFromId(parent.id);
- this.possibleMoves = [];
- const color = this.analyze ? this.vr.turn : this.userColor;
- if (this.vr.canIplay(color, startSquare))
- this.possibleMoves = this.vr.getPossibleMovesFrom(startSquare);
- // For potential drag'n drop, remember start coordinates
- // (to center the piece on mouse cursor)
- let rect = parent.getBoundingClientRect();
- this.start = {
+ if (e.which != 3)
+ // Cancel current drawing and circles, if any
+ this.cancelResetArrows();
+ if (e.which == 1 || this.mobileBrowser) {
+ // Mouse left button
+ if (!this.start) {
+ // NOTE: classList[0] is enough: 'piece' is the first assigned class
+ const withPiece = (e.target.classList[0] == "piece");
+ // Emit the click event which could be used by some variants
+ this.$emit(
+ "click-square",
+ getSquareFromId(withPiece ? e.target.parentNode.id : e.target.id)
+ );
+ // Start square must contain a piece.
+ if (!withPiece) 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)
+ const 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);
+ }
+ } else {
+ // e.which == 3 : mouse right button
+ let elem = e.target;
+ // Next loop because of potential marks
+ while (elem.tagName == "IMG") elem = elem.parentNode;
+ // To center the arrow in square:
+ const rect = elem.getBoundingClientRect();
+ this.startArrow = {
x: rect.x + rect.width / 2,
y: rect.y + rect.width / 2,
- id: parent.id
+ id: elem.id
};
- // Add the moving piece to the board, just after current image
- this.selectedPiece = e.target.cloneNode();
+ }
+ },
+ mousemove: function(e) {
+ if (!this.selectedPiece && !this.startArrow) return;
+ e.preventDefault();
+ if (!!this.selectedPiece) {
+ // 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];
Object.assign(
this.selectedPiece.style,
{
- position: "absolute",
- top: 0,
- display: "inline-block",
- zIndex: 3000
+ left: offsetX - this.start.x + "px",
+ top: offsetY - this.start.y + "px"
}
);
- 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];
- Object.assign(
- this.selectedPiece.style,
- {
- left: offsetX - this.start.x + "px",
- top: offsetY - this.start.y + "px"
+ else {
+ let elem = e.target;
+ // Next loop because of potential marks
+ while (elem.tagName == "IMG") elem = elem.parentNode;
+ // To center the arrow in square:
+ if (elem.id != this.startArrow.id) {
+ const rect = elem.getBoundingClientRect();
+ this.movingArrow = {
+ x: rect.x + rect.width / 2,
+ y: rect.y + rect.width / 2
+ };
}
- );
+ }
},
mouseup: function(e) {
- if (!this.selectedPiece) return;
+ if (!([1, 3].includes(e.which))) return;
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);
+ if (e.which == 1) {
+ if (!this.selectedPiece) return;
+ // Drag'n drop. Selected piece is no longer needed:
+ this.selectedPiece.parentNode.removeChild(this.selectedPiece);
+ delete this.selectedPiece;
+ this.selectedPiece = null;
+ this.processMoveAttempt(e);
+ } else {
+ // Mouse right button (e.which == 3)
+ this.movingArrow = { x: -1, y: -1 };
+ this.processArrowAttempt(e);
+ }
},
processMoveAttempt: function(e) {
// Obtain the move from start and end squares
} else if (moves.length == 1) this.play(moves[0]);
// else: forbidden move attempt
},
+ processArrowAttempt: function(e) {
+ // Obtain the arrow from start and end squares
+ const [offsetX, offsetY] = [e.clientX, e.clientY];
+ let landing = document.elementFromPoint(offsetX, offsetY);
+ // Next condition: classList.contains(piece) fails because of marks
+ while (landing.tagName == "IMG") landing = landing.parentNode;
+ if (this.startArrow.id == landing.id)
+ // Draw (or erase) a circle
+ this.$set(this.circles, landing.id, !this.circles[landing.id]);
+ else {
+ // OK: add arrow, landing is a new square
+ const rect = landing.getBoundingClientRect();
+ this.arrows.push({
+ start: {
+ x: this.startArrow.x,
+ y: this.startArrow.y
+ },
+ end: {
+ x: rect.x + rect.width / 2,
+ y: rect.y + rect.width / 2
+ }
+ });
+ }
+ this.startArrow = null;
+ },
findMatchingMoves: function(endSquare) {
// Run through moves list and return the matching set (if promotions...)
return (
opacity: 0.5
top: 0
+#arrowCanvas
+ pointer-events: none
+ position: absolute
+ top: 0
+ left: 0
+ width: 100%
+ height: 100%
+
+.svg-arrow
+ opacity: 0.65
+ stroke: #5f0e78
+ stroke-width: 10px
+ fill: none
+ marker-end: url(#arrow)
+
.incheck-light
background-color: rgba(204, 51, 0, 0.7) !important
.incheck-dark
projects / vchess.git / blobdiff