- updateEnlightened() {
- this.oldEnlightened = this.enlightened;
- this.enlightened = ArrayFun.init(this.size.x, this.size.y, false);
- // Add pieces positions + all squares reachable by moves (includes Zen):
- for (let x=0; x<this.size.x; x++) {
- for (let y=0; y<this.size.y; y++) {
- if (this.board[x][y] != "" && this.getColor(x, y) == this.playerColor)
- {
- this.enlightened[x][y] = true;
- this.getPotentialMovesFrom([x, y]).forEach(m => {
- this.enlightened[m.end.x][m.end.y] = true;
- });
- }
- }
- }
- if (this.epSquare)
- this.enlightEnpassant();
- }
-
- // Include square of the en-passant capturing square:
- enlightEnpassant() {
- // NOTE: shortcut, pawn has only one attack type, doesn't depend on square
- const steps = this.pieces(this.playerColor)["p"].attack[0].steps;
- 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.getPieceType(x, y) == "p"
- ) {
- this.enlightened[x][this.epSquare.y] = true;
- break;
- }
- }
- }
-
- // Apply diff this.enlightened --> oldEnlightened on board
- graphUpdateEnlightened() {
- let chessboard =
- document.getElementById(this.containerId).querySelector(".chessboard");
- const r = chessboard.getBoundingClientRect();
- const pieceWidth = this.getPieceWidth(r.width);
- for (let x=0; x<this.size.x; x++) {
- for (let y=0; y<this.size.y; y++) {
- if (!this.enlightened[x][y] && this.oldEnlightened[x][y]) {
- let elt = document.getElementById(this.coordsToId([x, y]));
- elt.classList.add("in-shadow");
- if (this.g_pieces[x][y])
- this.g_pieces[x][y].classList.add("hidden");
- }
- else if (this.enlightened[x][y] && !this.oldEnlightened[x][y]) {
- let elt = document.getElementById(this.coordsToId([x, y]));
- elt.classList.remove("in-shadow");
- if (this.g_pieces[x][y])
- this.g_pieces[x][y].classList.remove("hidden");
- }
- }
- }
- }
-
- // ordering as in pieces() p,r,n,b,q,k (+ count in base 30 if needed)