import Move from "/utils/Move.js";
// NOTE: x coords: top to bottom (white perspective); y: left to right
+// NOTE: ChessRules is aliased as window.C, and variants as window.V
export default class ChessRules {
/////////////////////////
{ label: "Asymmetric random", value: 2 }
]
}],
- check: [{
- label: "Capture king?",
- defaut: false,
- variable: "taking"
- }],
+ check: [
+ {
+ label: "Capture king",
+ defaut: false,
+ variable: "taking"
+ },
+ {
+ label: "Falling pawn",
+ defaut: false,
+ variable: "pawnfall"
+ }
+ ],
// Game modifiers (using "elementary variants"). Default: false
styles: [
"atomic",
doClick([x, y]) {
if (typeof x != "number") return null; //click on reserves
if (
- this.options["teleport"] && this.subTurn == 2 &&
+ this.options["teleport"] && this.subTurnTeleport == 2 &&
this.board[x][y] == ""
) {
return new Move({
// a2 --> {x:2,y:0} (this is in fact a6)
static SquareToCoords(sq) {
return {
- x: ChessRules.RowToCoord(sq[1]),
+ x: C.RowToCoord(sq[1]),
// NOTE: column is always one char => max 26 columns
- y: ChessRules.ColumnToCoord(sq[0])
+ y: C.ColumnToCoord(sq[0])
};
}
// {x:0,y:4} --> e0 (should be e8)
static CoordsToSquare(coords) {
- return (
- ChessRules.CoordToColumn(coords.y) + ChessRules.CoordToRow(coords.x)
- );
+ return C.CoordToColumn(coords.y) + C.CoordToRow(coords.x);
}
coordsToId([x, y]) {
Random.setSeed(seed);
let fen, flags = "0707";
- if (this.options.randomness == 0 || !this.options.randomness)
+ if (!this.options.randomness)
// Deterministic:
fen = "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w 0";
// Enpassant part of the FEN string
getEnpassantFen() {
if (!this.epSquare) return "-"; //no en-passant
- return ChessRules.CoordsToSquare(this.epSquare);
+ return C.CoordsToSquare(this.epSquare);
}
getReserveFen() {
getIspawnFen() {
const coords = Object.keys(this.ispawn);
if (coords.length == 0) return "-";
- return coords.map(ChessRules.CoordsToSquare).join(",");
+ return coords.map(C.CoordsToSquare).join(",");
}
// Set flags from fen (castle: white a,h then black a,h)
// Fen string fully describes the game state
constructor(o) {
+ window.C = ChessRules; //easier alias
+
this.options = o.options;
this.playerColor = o.color;
this.afterPlay = o.afterPlay;
if (this.hasReserve) this.initReserves(fenParsed.reserve);
if (this.options["crazyhouse"]) this.initIspawn(fenParsed.ispawn);
this.subTurn = 1; //may be unused
- if (this.options["teleport"]) this.captured = null;
+ if (this.options["teleport"]) {
+ this.subTurnTeleport = 1;
+ this.captured = null;
+ }
if (this.options["dark"]) {
this.enlightened = ArrayFun.init(this.size.x, this.size.y);
// Setup enlightened: squares reachable by player side
if (this.board[x][y] != "" && this.getColor(x, y) == this.playerColor)
{
newEnlightened[x][y] = true;
- const piece = this.getPiece(x, y);
- if (piece == ChessRules.PAWN) {
+ if (this.getPiece(x, y) == "p") {
// Attacking squares wouldn't be highlighted if no captures:
- this.pieces(this.playerColor)[piece].attack.forEach(step => {
+ this.pieces(this.playerColor)["p"].attack.forEach(step => {
const [i, j] = [x + step[0], this.computeY(y + step[1])];
if (this.onBoard(i, j) && this.board[i][j] == "")
newEnlightened[i][j] = true;
// Include en-passant capturing square if any:
enlightEnpassant(newEnlightened) {
- const steps = this.pieces(this.playerColor)[ChessRules.PAWN].attack;
+ const steps = this.pieces(this.playerColor)["p"].attack;
for (let step of steps) {
const x = this.epSquare.x - step[0],
y = this.computeY(this.epSquare.y - step[1]);
if (
this.onBoard(x, y) &&
this.getColor(x, y) == this.playerColor &&
- this.getPiece(x, y) == ChessRules.PAWN
+ this.getPieceType(x, y) == "p"
) {
newEnlightened[x][this.epSquare.y] = true;
break;
let elt = document.getElementById(this.coordsToId([x, y]));
elt.classList.remove("in-shadow");
if (this.board[x][y] != "") {
- const piece = this.getPiece(x, y);
const color = this.getColor(x, y);
+ const piece = this.getPiece(x, y);
this.g_pieces[x][y] = document.createElement("piece");
let newClasses = [
this.pieces()[piece]["class"],
initIspawn(ispawnStr) {
if (ispawnStr != "-") {
- this.ispawn = ispawnStr.split(",").map(ChessRules.SquareToCoords)
+ this.ispawn = ispawnStr.split(",").map(C.SquareToCoords)
.reduce((o, key) => ({ ...o, [key]: true}), {});
}
else this.ispawn = {};
re_drawBoardElements() {
const board = this.getSvgChessboard();
- const oppCol = ChessRules.GetOppCol(this.playerColor);
+ const oppCol = C.GetOppCol(this.playerColor);
let container = document.getElementById(this.containerId);
container.innerHTML = "";
container.insertAdjacentHTML('beforeend', board);
return board;
}
- // Generally light square bottom-right; TODO: user-defined colors at least
+ // Generally light square bottom-right
getSquareColorClass(i, j) {
return ((i+j) % 2 == 0 ? "light-square": "dark-square");
}
this.board[i][j] != "" &&
(!this.options["dark"] || this.enlightened[i][j])
) {
- const piece = this.getPiece(i, j);
const color = this.getColor(i, j);
+ const piece = this.getPiece(i, j);
this.g_pieces[i][j] = document.createElement("piece");
this.g_pieces[i][j].classList.add(this.pieces()[piece]["class"]);
this.g_pieces[i][j].classList.add(color == "w" ? "white" : "black");
const container = document.getElementById(this.containerId);
r = container.getBoundingClientRect();
}
- const epsilon = 1e-4; //fix display bug on Firefox at least
for (let c of colors) {
if (!this.reserve[c]) continue;
const nbR = this.getNbReservePieces(c);
rcontainer.classList.add("reserves");
rcontainer.style.left = i0 + "px";
rcontainer.style.top = j0 + "px";
- rcontainer.style.width = (nbR * sqResSize) + "px";
+ // NOTE: +1 fix display bug on Firefox at least
+ rcontainer.style.width = (nbR * sqResSize + 1) + "px";
rcontainer.style.height = sqResSize + "px";
document.getElementById("boardContainer").appendChild(rcontainer);
for (let p of Object.keys(this.reserve[c])) {
let r_cell = document.createElement("div");
r_cell.id = this.coordsToId([c, p]);
r_cell.classList.add("reserve-cell");
- r_cell.style.width = (sqResSize - epsilon) + "px";
- r_cell.style.height = (sqResSize - epsilon) + "px";
+ r_cell.style.width = sqResSize + "px";
+ r_cell.style.height = sqResSize + "px";
rcontainer.appendChild(r_cell);
let piece = document.createElement("piece");
const pieceSpec = this.pieces(c)[p];
}
updateReserve(color, piece, count) {
+ if (this.options["cannibal"] && C.CannibalKings[piece])
+ piece = "k"; //capturing cannibal king: back to king form
const oldCount = this.reserve[color][piece];
this.reserve[color][piece] = count;
// Redrawing is much easier if count==0
}
rescaleReserve(r) {
- const epsilon = 1e-4;
for (let c of ['w','b']) {
if (!this.reserve[c]) continue;
const nbR = this.getNbReservePieces(c);
let rcontainer = document.getElementById("reserves_" + c);
rcontainer.style.left = i0 + "px";
rcontainer.style.top = j0 + "px";
- rcontainer.style.width = (nbR * sqResSize) + "px";
+ rcontainer.style.width = (nbR * sqResSize + 1) + "px";
rcontainer.style.height = sqResSize + "px";
// And then reserve cells:
const rpieceWidth = this.getReserveSquareSize(r.width, nbR);
Object.keys(this.reserve[c]).forEach(p => {
if (this.reserve[c][p] == 0) return;
let r_cell = document.getElementById(this.coordsToId([c, p]));
- r_cell.style.width = (sqResSize - epsilon) + "px";
- r_cell.style.height = (sqResSize - epsilon) + "px";
+ r_cell.style.width = sqResSize + "px";
+ r_cell.style.height = sqResSize + "px";
});
}
}
// Touch screen, dragend
touchLocation = e.changedTouches[0];
if (touchLocation)
- return {x: touchLocation.pageX, y: touchLocation.pageY};
+ return {x: touchLocation.clientX, y: touchLocation.clientY};
return [0, 0]; //Big trouble here =)
}
startPiece, curPiece = null,
sqSize;
const mousedown = (e) => {
+ // Disable zoom on smartphones:
+ if (e.touches && e.touches.length > 1) e.preventDefault();
r = container.getBoundingClientRect();
sqSize = this.getSquareWidth(r.width);
const square = this.idToCoords(e.target.id);
e.preventDefault();
centerOnCursor(curPiece, e);
}
+ else if (e.changedTouches && e.changedTouches.length >= 1)
+ // Attempt to prevent horizontal swipe...
+ e.preventDefault();
};
const mouseup = (e) => {
document.addEventListener("mouseup", mouseup);
}
if ('ontouchstart' in window) {
- document.addEventListener("touchstart", mousedown);
- document.addEventListener("touchmove", mousemove);
- document.addEventListener("touchend", mouseup);
+ // https://stackoverflow.com/a/42509310/12660887
+ document.addEventListener("touchstart", mousedown, {passive: false});
+ document.addEventListener("touchmove", mousemove, {passive: false});
+ document.addEventListener("touchend", mouseup, {passive: false});
}
+ // TODO: onpointerdown/move/up ? See reveal.js /controllers/touch.js
}
showChoices(moves, r) {
return this.board[i][j].charAt(0);
}
- // Piece type on square (i,j). 'undefined' if square is empty
+ // Assume square i,j isn't empty
getPiece(i, j) {
return this.board[i][j].charAt(1);
}
+ // Piece type on square (i,j)
+ getPieceType(i, j) {
+ const p = this.board[i][j].charAt(1);
+ return C.CannibalKings[p] || p; //a cannibal king move as...
+ }
+
// Get opponent color
static GetOppCol(color) {
return (color == "w" ? "b" : "w");
// Can thing on square1 take thing on square2
canTake([x1, y1], [x2, y2]) {
return (
+ (this.getColor(x1, y1) !== this.getColor(x2, y2)) ||
(
(this.options["recycle"] || this.options["teleport"]) &&
- this.getPiece(x2, y2) != ChessRules.KING
- ) ||
- (this.getColor(x1, y1) !== this.getColor(x2, y2))
+ this.getPieceType(x2, y2) != "k"
+ )
);
}
[1, 1], [1, -1], [-1, 1], [-1, -1]
],
range: 1
- }
+ },
+ // Cannibal kings:
+ 's': { "class": "king-pawn" },
+ 'u': { "class": "king-rook" },
+ 'o': { "class": "king-knight" },
+ 'c': { "class": "king-bishop" },
+ 't': { "class": "king-queen" }
};
}
- // Some pieces codes (for a clearer code)
- static get PAWN() {
- return "p";
- }
- static get QUEEN() {
- return "q";
- }
- static get KING() {
- return "k";
- }
-
////////////////////
// MOVES GENERATION
// Stop at the first capture found
atLeastOneCapture(color) {
color = color || this.turn;
- const oppCol = ChessRules.GetOppCol(color);
+ const oppCol = C.GetOppCol(color);
for (let i = 0; i < this.size.x; i++) {
for (let j = 0; j < this.size.y; j++) {
if (this.board[i][j] != "" && this.getColor(i, j) == color) {
- const specs = this.pieces(color)[this.getPiece(i, j)];
+ const specs = this.pieces(color)[this.getPieceType(i, j)];
const steps = specs.attack || specs.steps;
outerLoop: for (let step of steps) {
let [ii, jj] = [i + step[0], this.computeY(j + step[1])];
getDropMovesFrom([c, p]) {
// NOTE: by design, this.reserve[c][p] >= 1 on user click
// (but not necessarily otherwise)
- if (!this.reserve[c][p] || this.reserve[c][p] == 0) return [];
+ if (this.reserve[c][p] == 0) return [];
let moves = [];
for (let i=0; i<this.size.x; i++) {
for (let j=0; j<this.size.y; j++) {
this.board[i][j] == "" &&
(!this.options["dark"] || this.enlightened[i][j]) &&
(
- p != ChessRules.PAWN ||
+ p != "p" ||
(c == 'w' && i < this.size.x - 1) ||
(c == 'b' && i > 0)
)
getPotentialMovesFrom(sq, color) {
if (typeof sq[0] == "string") return this.getDropMovesFrom(sq);
if (this.options["madrasi"] && this.isImmobilized(sq)) return [];
- const piece = this.getPiece(sq[0], sq[1]);
+ const piece = this.getPieceType(sq[0], sq[1]);
let moves;
- if (piece == ChessRules.PAWN) moves = this.getPotentialPawnMoves(sq);
+ if (piece == "p") moves = this.getPotentialPawnMoves(sq);
else moves = this.getPotentialMovesOf(piece, sq);
if (
- piece == ChessRules.KING &&
+ piece == "k" &&
this.hasCastle &&
this.castleFlags[color || this.turn].some(v => v < this.size.y)
) {
postProcessPotentialMoves(moves) {
if (moves.length == 0) return [];
const color = this.getColor(moves[0].start.x, moves[0].start.y);
- const oppCol = ChessRules.GetOppCol(color);
+ const oppCol = C.GetOppCol(color);
if (this.options["capture"] && this.atLeastOneCapture()) {
// Filter out non-capturing moves (not using m.vanish because of
if (
this.onBoard(x, y) &&
this.board[x][y] != "" &&
- this.getPiece(x, y) != ChessRules.PAWN
+ this.getPieceType(x, y) != "p"
) {
m.vanish.push(
new PiPo({
}
});
}
+
+ if (
+ this.options["cannibal"] &&
+ this.options["rifle"] &&
+ this.pawnSpecs.promotions
+ ) {
+ // In this case a rifle-capture from last rank may promote a pawn
+ const lastRank = (color == "w" ? 0 : this.size.x - 1);
+ let newMoves = [];
+ moves.forEach(m => {
+ if (
+ m.start.x == lastRank &&
+ m.appear.length >= 1 &&
+ m.appear[0].p == "p" &&
+ m.appear[0].x == m.start.x &&
+ m.appear[0].y == m.start.y
+ ) {
+ const promotionPiece0 = this.pawnSpecs.promotions[0];
+ m.appear[0].p = this.pawnSpecs.promotions[0];
+ for (let i=1; i<this.pawnSpecs.promotions.length; i++) {
+ let newMv = JSON.parse(JSON.stringify(m));
+ newMv.appear[0].p = this.pawnSpecs.promotions[i];
+ newMoves.push(newMv);
+ }
+ }
+ });
+ Array.prototype.push.apply(moves, newMoves);
+ }
+
return moves;
}
+ static get CannibalKings() {
+ return {
+ "s": "p",
+ "u": "r",
+ "o": "n",
+ "c": "b",
+ "t": "q"
+ };
+ }
+
+ static get CannibalKingCode() {
+ return {
+ "p": "s",
+ "r": "u",
+ "n": "o",
+ "b": "c",
+ "q": "t",
+ "k": "k"
+ };
+ }
+
+ isKing(symbol) {
+ return (
+ symbol == 'k' ||
+ (this.options["cannibal"] && C.CannibalKings[symbol])
+ );
+ }
+
// For Madrasi:
// (redefined in Baroque etc, where Madrasi condition doesn't make sense)
isImmobilized([x, y]) {
const color = this.getColor(x, y);
- const oppCol = ChessRules.GetOppCol(color);
- const piece = this.getPiece(x, y);
+ const oppCol = C.GetOppCol(color);
+ const piece = this.getPieceType(x, y);
const stepSpec = this.pieces(color)[piece];
let [steps, range] = [stepSpec.attack || stepSpec.steps, stepSpec.range];
outerLoop: for (let step of steps) {
if (
this.onBoard(i, j) &&
this.getColor(i, j) == oppCol &&
- this.getPiece(i, j) == piece
+ this.getPieceType(i, j) == piece
) {
return true;
}
this.onBoard(i, j) &&
(
!this.options["zen"] ||
- this.getPiece(i, j) == ChessRules.KING ||
+ this.getPieceType(i, j) == "k" ||
this.getColor(i, j) == color //OK for Recycle and Teleport
) &&
this.canTake([x, y], [i, j]) &&
let moves = [];
// Find reverse captures (opponent takes)
const color = this.getColor(x, y);
- const oppCol = ChessRules.GetOppCol(color);
+ const pieceType = this.getPieceType(x, y);
+ const oppCol = C.GetOppCol(color);
const pieces = this.pieces(oppCol);
Object.keys(pieces).forEach(p => {
- if (p == ChessRules.KING) return; //king isn't captured this way
+ if (
+ p == "k" ||
+ (this.options["cannibal"] && C.CannibalKings[p])
+ ) {
+ return; //king isn't captured this way
+ }
const steps = pieces[p].attack || pieces[p].steps;
+ if (!steps) return; //cannibal king for example (TODO...)
const range = pieces[p].range;
steps.forEach(s => {
// From x,y: revert step
}
if (
this.onBoard(i, j) &&
- this.getPiece(i, j) == p &&
+ this.getPieceType(i, j) == p &&
this.getColor(i, j) == oppCol && //condition for Recycle & Teleport
this.canTake([i, j], [x, y])
) {
- if (this.getPiece(x, y) != ChessRules.PAWN)
- moves.push(this.getBasicMove([x, y], [i, j]));
+ if (pieceType != "p") moves.push(this.getBasicMove([x, y], [i, j]));
else this.addPawnMoves([x, y], [i, j], moves);
}
});
// tr: transformation
getBasicMove([sx, sy], [ex, ey], tr) {
const initColor = this.getColor(sx, sy);
- const initPiece = this.board[sx][sy].charAt(1);
+ const initPiece = this.getPiece(sx, sy);
const destColor = (this.board[ex][ey] != "" ? this.getColor(ex, ey) : "");
let mv = new Move({
appear: [],
x: ex,
y: ey,
c: this.getColor(ex, ey),
- p: this.board[ex][ey].charAt(1)
+ p: this.getPiece(ex, ey)
})
);
if (this.options["rifle"])
mv.capture = true;
if (this.options["cannibal"] && destColor != initColor) {
const lastIdx = mv.vanish.length - 1;
- if (mv.appear.length >= 1) mv.appear[0].p = mv.vanish[lastIdx].p;
+ let trPiece = mv.vanish[lastIdx].p;
+ if (this.isKing(this.getPiece(sx, sy)))
+ trPiece = C.CannibalKingCode[trPiece];
+ if (mv.appear.length >= 1) mv.appear[0].p = trPiece;
else if (this.options["rifle"]) {
mv.appear.unshift(
new PiPo({
x: sx,
y: sy,
c: initColor,
- p: mv.vanish[lastIdx].p
+ p: trPiece
})
);
mv.vanish.unshift(
if (typeof moveOrSquare === "string") {
const square = moveOrSquare;
if (square == "-") return undefined;
- return ChessRules.SquareToCoords(square);
+ return C.SquareToCoords(square);
}
// Argument is a move:
const move = moveOrSquare;
s.y == e.y &&
Math.abs(s.x - e.x) == 2 &&
// Next conditions for variants like Atomic or Rifle, Recycle...
- (move.appear.length > 0 && move.appear[0].p == ChessRules.PAWN) &&
- (move.vanish.length > 0 && move.vanish[0].p == ChessRules.PAWN)
+ (move.appear.length > 0 && move.appear[0].p == "p") &&
+ (move.vanish.length > 0 && move.vanish[0].p == "p")
) {
return {
x: (s.x + e.x) / 2,
// Special case of en-passant captures: treated separately
getEnpassantCaptures([x, y], shiftX) {
const color = this.getColor(x, y);
- const oppCol = ChessRules.GetOppCol(color);
+ const oppCol = C.GetOppCol(color);
let enpassantMove = null;
if (
!!this.epSquare &&
return !!enpassantMove ? [enpassantMove] : [];
}
- // Consider all potential promotions:
+ // Consider all potential promotions.
+ // NOTE: "promotions" arg = special override for Hiddenqueen variant
addPawnMoves([x1, y1], [x2, y2], moves, promotions) {
- let finalPieces = [ChessRules.PAWN];
+ let finalPieces = ["p"];
const color = this.getColor(x1, y1);
+ const oppCol = C.GetOppCol(color);
const lastRank = (color == "w" ? 0 : this.size.x - 1);
- if (x2 == lastRank && (!this.options["rifle"] || this.board[x2][y2] == ""))
- {
- // promotions arg: special override for Hiddenqueen variant
- if (promotions) finalPieces = promotions;
+ const promotionOk =
+ x2 == lastRank && (!this.options["rifle"] || this.board[x2][y2] == "");
+ if (promotionOk && !this.options["pawnfall"]) {
+ if (
+ this.options["cannibal"] &&
+ this.board[x2][y2] != "" &&
+ this.getColor(x2, y2) == oppCol
+ ) {
+ finalPieces = [this.getPieceType(x2, y2)];
+ }
+ else if (promotions) finalPieces = promotions;
else if (this.pawnSpecs.promotions)
finalPieces = this.pawnSpecs.promotions;
}
for (let piece of finalPieces) {
- const tr = (piece != ChessRules.PAWN ? { c: color, p: piece } : null);
- moves.push(this.getBasicMove([x1, y1], [x2, y2], tr));
+ const tr = !this.options["pawnfall"] && piece != "p"
+ ? { c: color, p: piece }
+ : null;
+ let newMove = this.getBasicMove([x1, y1], [x2, y2], tr);
+ if (promotionOk && this.options["pawnfall"]) {
+ newMove.appear.shift();
+ newMove.pawnfall = true; //required in prePlay()
+ }
+ moves.push(newMove);
}
}
this.canTake([x, y], [x + shiftX, yCoord]) &&
(
!this.options["zen"] ||
- this.getPiece(x + shiftX, yCoord) == ChessRules.KING
+ this.getPieceType(x + shiftX, yCoord) == "k"
)
) {
this.addPawnMoves(
this.canTake([x, y], [x - shiftX, yCoord]) &&
(
!this.options["zen"] ||
- this.getPiece(x + shiftX, yCoord) == ChessRules.KING
+ this.getPieceType(x + shiftX, yCoord) == "k"
)
) {
this.addPawnMoves(
const c = this.getColor(x, y);
// Castling ?
- const oppCol = ChessRules.GetOppCol(c);
+ const oppCol = C.GetOppCol(c);
let moves = [];
// King, then rook:
finalSquares =
finalSquares || [ [2, 3], [this.size.y - 2, this.size.y - 3] ];
- const castlingKing = this.board[x][y].charAt(1);
+ const castlingKing = this.getPiece(x, y);
castlingCheck: for (
let castleSide = 0;
castleSide < 2;
// NOTE: in some variants this is not a rook
const rookPos = this.castleFlags[c][castleSide];
- const castlingPiece = this.board[x][rookPos].charAt(1);
+ const castlingPiece = this.getPiece(x, rookPos);
if (
this.board[x][rookPos] == "" ||
this.getColor(x, rookPos) != c ||
// Is (king at) given position under check by "color" ?
underCheck([x, y], color) {
- if (this.taking || this.options["dark"]) return false;
- color = color || ChessRules.GetOppCol(this.getColor(x, y));
+ if (this.options["taking"] || this.options["dark"]) return false;
+ color = color || C.GetOppCol(this.getColor(x, y));
const pieces = this.pieces(color);
return Object.keys(pieces).some(p => {
return this.isAttackedBy([x, y], p, color, pieces[p]);
isAttackedBy([x, y], piece, color, stepSpec) {
const steps = stepSpec.attack || stepSpec.steps;
+ if (!steps) return false; //cannibal king, for example
const range = stepSpec.range;
let explored = {}; //for Cylinder mode
outerLoop: for (let step of steps) {
if (
this.onBoard(rx, ry) &&
this.board[rx][ry] != "" &&
- this.getPiece(rx, ry) == piece &&
+ this.getPieceType(rx, ry) == piece &&
this.getColor(rx, ry) == color &&
(!this.options["madrasi"] || !this.isImmobilized([rx, ry]))
) {
searchKingPos(color) {
for (let i=0; i < this.size.x; i++) {
for (let j=0; j < this.size.y; j++) {
- if (this.board[i][j] == color + 'k') return [i, j];
+ if (this.getColor(i, j) == color && this.isKing(this.getPiece(i, j)))
+ return [i, j];
}
}
return [-1, -1]; //king not found
filterValid(moves) {
if (moves.length == 0) return [];
const color = this.turn;
- const oppCol = ChessRules.GetOppCol(color);
+ const oppCol = C.GetOppCol(color);
if (this.options["balance"] && [1, 3].includes(this.movesCount)) {
// Forbid moves either giving check or exploding opponent's king:
const oppKingPos = this.searchKingPos(oppCol);
moves = moves.filter(m => {
if (
- m.vanish.some(v => v.c == oppCol && v.p == ChessRules.KING) &&
- m.appear.every(a => a.c != oppCol || a.p != ChessRUles.KING)
+ m.vanish.some(v => v.c == oppCol && v.p == "k") &&
+ m.appear.every(a => a.c != oppCol || a.p != "k")
)
return false;
this.playOnBoard(m);
return res;
});
}
- if (this.taking || this.options["dark"]) return moves;
+ if (this.options["taking"] || this.options["dark"]) return moves;
const kingPos = this.searchKingPos(color);
let filtered = {}; //avoid re-checking similar moves (promotions...)
return moves.filter(m => {
this.playOnBoard(m);
let square = kingPos,
res = true; //a priori valid
- if (m.vanish.some(v => v.p == ChessRules.KING && v.c == color)) {
+ if (m.vanish.some(v => {
+ return (v.p == "k" || C.CannibalKings[v.p]) && v.c == color;
+ })) {
// Search king in appear array:
const newKingIdx =
- m.appear.findIndex(a => a.p == ChessRules.KING && a.c == color);
+ m.appear.findIndex(a => {
+ return (a.p == "k" || C.CannibalKings[a.p]) && a.c == color;
+ });
if (newKingIdx >= 0)
square = [m.appear[newKingIdx].x, m.appear[newKingIdx].y];
else res = false;
move.appear.concat(move.vanish).forEach(psq => {
if (
this.board[psq.x][psq.y] != "" &&
- this.getPiece(psq.x, psq.y) == ChessRules.KING
+ this.getPieceType(psq.x, psq.y) == "k"
) {
this.castleFlags[psq.c] = [this.size.y, this.size.y];
}
// NOTE: not "else if" because king can capture enemy rook...
- let c = '';
- if (psq.x == 0) c = 'b';
- else if (psq.x == this.size.x - 1) c = 'w';
- if (c != '') {
+ let c = "";
+ if (psq.x == 0) c = "b";
+ else if (psq.x == this.size.x - 1) c = "w";
+ if (c != "") {
const fidx = this.castleFlags[c].findIndex(f => f == psq.y);
if (fidx >= 0) this.castleFlags[c][fidx] = this.size.y;
}
prePlay(move) {
if (
typeof move.start.x == "number" &&
- (!this.options["teleport"] || this.subTurn == 1)
+ (!this.options["teleport"] || this.subTurnTeleport == 1)
) {
// OK, not a drop move
if (
) {
this.updateCastleFlags(move);
}
- const initSquare = ChessRules.CoordsToSquare(move.start);
+ const initSquare = C.CoordsToSquare(move.start);
if (
this.options["crazyhouse"] &&
(!this.options["rifle"] || !move.capture)
) {
if (this.ispawn[initSquare]) {
delete this.ispawn[initSquare];
- this.ispawn[ChessRules.CoordsToSquare(move.end)] = true;
+ this.ispawn[C.CoordsToSquare(move.end)] = true;
}
else if (
- move.vanish[0].p == ChessRules.PAWN &&
- move.appear[0].p != ChessRules.PAWN
+ move.vanish[0].p == "p" &&
+ move.appear[0].p != "p"
) {
- this.ispawn[ChessRules.CoordsToSquare(move.end)] = true;
+ this.ispawn[C.CoordsToSquare(move.end)] = true;
}
}
}
const minSize = Math.min(move.appear.length, move.vanish.length);
- if (this.hasReserve) {
+ if (this.hasReserve && !move.pawnfall) {
const color = this.turn;
for (let i=minSize; i<move.appear.length; i++) {
// Something appears = dropped on board (some exceptions, Chakart...)
postPlay(move) {
const color = this.turn;
- const oppCol = ChessRules.GetOppCol(color);
+ const oppCol = C.GetOppCol(color);
if (this.options["dark"]) this.updateEnlightened(true);
if (this.options["teleport"]) {
if (
- this.subTurn == 1 &&
+ this.subTurnTeleport == 1 &&
move.vanish.length > move.appear.length &&
move.vanish[move.vanish.length - 1].c == color
) {
const v = move.vanish[move.vanish.length - 1];
this.captured = {x: v.x, y: v.y, c: v.c, p: v.p};
- this.subTurn = 2;
+ this.subTurnTeleport = 2;
return;
}
+ this.subTurnTeleport = 1;
this.captured = null;
}
if (this.options["balance"]) {
for (let i = 0; i < this.size.x; i++) {
for (let j = 0; j < this.size.y; j++) {
if (this.board[i][j] != "" && this.getColor(i, j) == color) {
- // TODO?: do not search all possible moves here
+ // NOTE: in fact searching for all potential moves from i,j.
+ // I don't believe this is an issue, for now at least.
const moves = this.getPotentialMovesFrom([i, j]);
if (moves.some(m => this.filterValid([m]).length >= 1)) return true;
}
// What is the score ? (Interesting if game is over)
getCurrentScore(move) {
const color = this.turn;
- const oppCol = ChessRules.GetOppCol(color);
+ const oppCol = C.GetOppCol(color);
const kingPos = [this.searchKingPos(color), this.searchKingPos(oppCol)];
if (kingPos[0][0] < 0 && kingPos[1][0] < 0) return "1/2";
if (kingPos[0][0] < 0) return (color == "w" ? "0-1" : "1-0");
return (color == "w" ? "0-1" : "1-0");
}
- // NOTE: quite suboptimal for eg. Benedict (TODO?)
+ // NOTE: quite suboptimal for eg. Benedict (not a big deal I think)
playVisual(move, r) {
move.vanish.forEach(v => {
if (!this.enlightened || this.enlightened[v.x][v.y]) {
nbR++;
}
const rsqSize = this.getReserveSquareSize(r.width, nbR);
- return [ridx * rsqSize, rsqSize]; //slightly inaccurate... TODO?
+ return [-ridx * rsqSize, rsqSize]; //slightly inaccurate... TODO?
}
animate(move, callback) {
const clonePiece = (
!dropMove &&
this.options["rifle"] ||
- (this.options["teleport"] && this.subTurn == 2)
+ (this.options["teleport"] && this.subTurnTeleport == 2)
);
if (clonePiece) {
startPiece = startPiece.cloneNode();
if (this.options["rifle"]) startArray[i1][j1].style.opacity = "0";
- if (this.options["teleport"] && this.subTurn == 2) {
+ if (this.options["teleport"] && this.subTurnTeleport == 2) {
const pieces = this.pieces();
const startCode = (dropMove ? j1 : this.getPiece(i1, j1));
startPiece.classList.remove(pieces[startCode]["class"]);
const maxDist = Math.sqrt((this.size.x - 1)** 2 + (this.size.y - 1) ** 2);
const multFact = (distance - 1) / (maxDist - 1); //1 == minDist
const duration = 0.2 + multFact * 0.3;
+ const initTransform = startPiece.style.transform;
startPiece.style.transform =
`translate(${arrival[0] + rs[0]}px, ${arrival[1] + rs[1]}px)`;
startPiece.style.transitionDuration = duration + "s";
if (this.options["rifle"]) startArray[i1][j1].style.opacity = "1";
startPiece.remove();
}
+ else {
+ startPiece.style.transform = initTransform;
+ startPiece.style.transitionDuration = "0s";
+ }
callback();
},
duration * 1000
};
animateRec(0);
};
- const checkDisplayThenAnimate = () => {
+ // Delay if user wasn't focused:
+ const checkDisplayThenAnimate = (delay) => {
if (boardContainer.style.display == "none") {
alert("New move! Let's go back to game...");
document.getElementById("gameInfos").style.display = "none";
boardContainer.style.display = "block";
setTimeout(launchAnimation, 700);
}
- else launchAnimation(); //focused user!
+ else setTimeout(launchAnimation, delay || 0);
};
let boardContainer = document.getElementById("boardContainer");
if (document.hidden) {
document.onvisibilitychange = () => {
document.onvisibilitychange = undefined;
- checkDisplayThenAnimate();
+ checkDisplayThenAnimate(700);
};
}
else checkDisplayThenAnimate();
projects / xogo.git / blobdiff