X-Git-Url: https://git.auder.net/?a=blobdiff_plain;f=client%2Fsrc%2Fvariants%2FYote.js;h=dc1ef684800da1aa4ad8d684a28b1c7ea6d28223;hb=cbe9537881e68f50c43f48d3699c4b248690fb4d;hp=0d81759cb8ef9c46c6c5c90574a305179b7882b8;hpb=1328e7dd5a73fd4a4eee85d5b86aea73b9a74f9f;p=vchess.git

diff --git a/client/src/variants/Yote.js b/client/src/variants/Yote.js
index 0d81759c..dc1ef684 100644
--- a/client/src/variants/Yote.js
+++ b/client/src/variants/Yote.js
@@ -1,7 +1,398 @@
-import { ChessRules } from "@/base_rules";
+import { ChessRules, Move, PiPo } from "@/base_rules";
 
 export class YoteRules extends ChessRules {
 
-  // TODO
+  static get HasFlags() {
+    return false;
+  }
+
+  static get HasEnpassant() {
+    return false;
+  }
+
+  static get Monochrome() {
+    return true;
+  }
+
+  static get Notoodark() {
+    return true;
+  }
+
+  static get ReverseColors() {
+    return true;
+  }
+
+  static IsGoodFen(fen) {
+    if (!ChessRules.IsGoodFen(fen)) return false;
+    const fenParsed = V.ParseFen(fen);
+    // 3) Check reserves
+    if (
+      !fenParsed.reserve ||
+      !fenParsed.reserve.match(/^([0-9]{1,2},){2,2}$/)
+    ) {
+      return false;
+    }
+    // 4) Check lastMove
+    if (!fenParsed.lastMove) return false;
+    const lmParts = fenParsed.lastMove.split(",");
+    for (lp of lmParts) {
+      if (lp != "-" && !lp.match(/^([a-f][1-5]){2,2}$/)) return false;
+    }
+    return true;
+  }
+
+  static ParseFen(fen) {
+    const fenParts = fen.split(" ");
+    return Object.assign(
+      ChessRules.ParseFen(fen),
+      {
+        reserve: fenParts[3],
+        lastMove: fenParts[4]
+      }
+    );
+  }
+
+  static GenRandInitFen(randomness) {
+    return "6/6/6/6/6 w 0 12,12 -,-";
+  }
+
+  getFen() {
+    return (
+      super.getFen() + " " +
+      this.getReserveFen() + " " +
+      this.getLastmoveFen()
+    );
+  }
+
+  getFenForRepeat() {
+    return super.getFenForRepeat() + "_" + this.getReserveFen();
+  }
+
+  getReserveFen() {
+    return (
+      (!this.reserve["w"] ? 0 : this.reserve["w"][V.PAWN]) + "," +
+      (!this.reserve["b"] ? 0 : this.reserve["b"][V.PAWN])
+    );
+  }
+
+  getLastmoveFen() {
+    const L = this.lastMove.length;
+    const lm = this.lastMove[L-1];
+    return (
+      (
+        !lm['w']
+          ? '-'
+          : V.CoordsToSquare(lm['w'].start) + V.CoordsToSquare(lm['w'].end)
+      )
+      + "," +
+      (
+        !lm['b']
+          ? '-'
+          : V.CoordsToSquare(lm['b'].start) + V.CoordsToSquare(lm['b'].end)
+      )
+    );
+  }
+
+  setOtherVariables(fen) {
+    const fenParsed = V.ParseFen(fen);
+    const reserve = fenParsed.reserve.split(",").map(x => parseInt(x, 10));
+    this.reserve = {
+      w: { [V.PAWN]: reserve[0] },
+      b: { [V.PAWN]: reserve[1] }
+    };
+    // And last moves (to avoid undoing your last move)
+    const lmParts = fenParsed.lastMove.split(",");
+    this.lastMove = [{ w: null, b: null }];
+    ['w', 'b'].forEach((c, i) => {
+      if (lmParts[i] != '-') {
+        this.lastMove[0][c] = {
+          start: V.SquareToCoords(lmParts[i].substr(0, 2)),
+          end: V.SquareToCoords(lmParts[i].substr(2))
+        };
+      }
+    });
+    // Local stack to know if (current) last move captured something
+    this.captures = [false];
+  }
+
+  static get size() {
+    return { x: 5, y: 6 };
+  }
+
+  static get PIECES() {
+    return [V.PAWN];
+  }
+
+  getColor(i, j) {
+    if (i >= V.size.x) return i == V.size.x ? "w" : "b";
+    return this.board[i][j].charAt(0);
+  }
+
+  getPiece() {
+    return V.PAWN;
+  }
+
+  getPpath(b) {
+    return "Yote/" + b;
+  }
+
+  getReservePpath(index, color) {
+    return "Yote/" + color + V.PAWN;
+  }
+
+  static get RESERVE_PIECES() {
+    return [V.PAWN];
+  }
+
+  canIplay(side, [x, y]) {
+    if (this.turn != side) return false;
+    const L = this.captures.length;
+    if (!this.captures[L-1]) return this.getColor(x, y) == side;
+    return (x < V.size.x && this.getColor(x, y) != side);
+  }
+
+  hoverHighlight(x, y) {
+    const L = this.captures.length;
+    if (!this.captures[L-1]) return false;
+    const oppCol = V.GetOppCol(this.turn);
+    return (this.board[x][y] != V.EMPTY && this.getColor(x, y) == oppCol);
+  }
+
+  // TODO: onlyClick() doesn't fulfill exactly its role.
+  // Seems that there is some lag... TOFIX
+  onlyClick([x, y]) {
+    const L = this.captures.length;
+    return (this.captures[L-1] && this.getColor(x, y) != this.turn);
+  }
+
+  // PATCH related to above TO-DO:
+  getPossibleMovesFrom([x, y]) {
+    if (x < V.size.x && this.board[x][y] == V.EMPTY) return [];
+    return super.getPossibleMovesFrom([x, y]);
+  }
+
+  doClick([x, y]) {
+    const L = this.captures.length;
+    if (!this.captures[L-1]) return null;
+    const oppCol = V.GetOppCol(this.turn);
+    if (this.board[x][y] == V.EMPTY || this.getColor(x, y) != oppCol)
+      return null;
+    return new Move({
+      appear: [],
+      vanish: [ new PiPo({ x: x, y: y, c: oppCol, p: V.PAWN }) ],
+      end: { x: x, y: y }
+    });
+  }
+
+  getReserveMoves(x) {
+    const color = this.turn;
+    if (this.reserve[color][V.PAWN] == 0) return [];
+    let moves = [];
+    for (let i = 0; i < V.size.x; i++) {
+      for (let j = 0; j < V.size.y; j++) {
+        if (this.board[i][j] == V.EMPTY) {
+          let mv = new Move({
+            appear: [
+              new PiPo({
+                x: i,
+                y: j,
+                c: color,
+                p: V.PAWN
+              })
+            ],
+            vanish: [],
+            start: { x: x, y: 0 }, //a bit artificial...
+            end: { x: i, y: j }
+          });
+          moves.push(mv);
+        }
+      }
+    }
+    return moves;
+  }
+
+  getPotentialMovesFrom([x, y]) {
+    const L = this.captures.length;
+    if (this.captures[L-1]) {
+      if (x >= V.size.x) return [];
+      const mv = this.doClick([x, y]);
+      return (!!mv ? [mv] : []);
+    }
+    if (x >= V.size.x)
+      return this.getReserveMoves([x, y]);
+    return this.getPotentialPawnMoves([x, y]);
+  }
+
+  getPotentialPawnMoves([x, y]) {
+    let moves = [];
+    const color = this.turn;
+    const L = this.lastMove.length;
+    const lm = this.lastMove[L-1];
+    let forbiddenStep = null;
+    if (!!lm[color]) {
+      forbiddenStep = [
+        lm[color].start.x - lm[color].end.x,
+        lm[color].start.y - lm[color].end.y
+      ];
+    }
+    const oppCol = V.GetOppCol(color);
+    for (let s of V.steps[V.ROOK]) {
+      if (
+        !!forbiddenStep &&
+        s[0] == forbiddenStep[0] && s[1] == forbiddenStep[1]
+      ) {
+        continue;
+      }
+      const [i1, j1] = [x + s[0], y + s[1]];
+      if (V.OnBoard(i1, j1)) {
+        if (this.board[i1][j1] == V.EMPTY)
+          moves.push(super.getBasicMove([x, y], [i1, j1]));
+        else if (this.getColor(i1, j1) == oppCol) {
+          const [i2, j2] = [i1 + s[0], j1 + s[1]];
+          if (V.OnBoard(i2, j2) && this.board[i2][j2] == V.EMPTY) {
+            let mv = new Move({
+              appear: [
+                new PiPo({ x: i2, y: j2, c: color, p: V.PAWN })
+              ],
+              vanish: [
+                new PiPo({ x: x, y: y, c: color, p: V.PAWN }),
+                new PiPo({ x: i1, y: j1, c: oppCol, p: V.PAWN })
+              ]
+            });
+            moves.push(mv);
+          }
+        }
+      }
+    }
+    return moves;
+  }
+
+  getAllPotentialMoves() {
+    let moves = super.getAllPotentialMoves();
+    const color = this.turn;
+    moves = moves.concat(
+      this.getReserveMoves(V.size.x + (color == "w" ? 0 : 1)));
+    return moves;
+  }
+
+  filterValid(moves) {
+    return moves;
+  }
+
+  getCheckSquares() {
+    return [];
+  }
+
+  atLeastOneMove() {
+    if (!super.atLeastOneMove()) {
+      // Search one reserve move
+      const moves =
+        this.getReserveMoves(V.size.x + (this.turn == "w" ? 0 : 1));
+      if (moves.length > 0) return true;
+      return false;
+    }
+    return true;
+  }
+
+  play(move) {
+    const color = this.turn;
+    move.turn = color; //for undo
+    const L = this.lastMove.length;
+    if (color == 'w')
+      this.lastMove.push({ w: null, b: this.lastMove[L-1]['b'] });
+    if (move.appear.length == move.vanish.length) { //== 1
+      // Normal move (non-capturing, non-dropping, non-removal)
+      let lm = this.lastMove[L - (color == 'w' ? 0 : 1)];
+      if (!lm[color]) lm[color] = {};
+      lm[color].start = move.start;
+      lm[color].end = move.end;
+    }
+    const oppCol = V.GetOppCol(color);
+    V.PlayOnBoard(this.board, move);
+    const captureNotEnding = (
+      move.vanish.length == 2 &&
+      this.board.some(b => b.some(cell => cell != "" && cell[0] == oppCol))
+    );
+    this.captures.push(captureNotEnding);
+    // Change turn unless I just captured something,
+    // and an opponent stone can be removed from board.
+    if (!captureNotEnding) {
+      this.turn = oppCol;
+      this.movesCount++;
+    }
+    this.postPlay(move);
+  }
+
+  undo(move) {
+    V.UndoOnBoard(this.board, move);
+    if (this.turn == 'b') this.lastMove.pop();
+    else this.lastMove['b'] = null;
+    this.captures.pop();
+    if (move.turn != this.turn) {
+      this.turn = move.turn;
+      this.movesCount--;
+    }
+    this.postUndo(move);
+  }
+
+  postPlay(move) {
+    if (move.vanish.length == 0) {
+      const color = move.appear[0].c;
+      this.reserve[color][V.PAWN]--;
+      if (this.reserve[color][V.PAWN] == 0) delete this.reserve[color];
+    }
+  }
+
+  postUndo(move) {
+    if (move.vanish.length == 0) {
+      const color = move.appear[0].c;
+      if (!this.reserve[color]) this.reserve[color] = { [V.PAWN]: 0 };
+      this.reserve[color][V.PAWN]++;
+    }
+  }
+
+  getCurrentScore() {
+    if (this.movesCount <= 2) return "*";
+    const color = this.turn;
+    // If no stones on board, or no move available, I lose
+    if (
+      this.board.every(b => {
+        return b.every(cell => {
+          return (cell == "" || cell[0] != color);
+        });
+      })
+      ||
+      !this.atLeastOneMove()
+    ) {
+      return (color == 'w' ? "0-1" : "1-0");
+    }
+    return "*";
+  }
+
+  static get SEARCH_DEPTH() {
+    return 4;
+  }
+
+  evalPosition() {
+    let evaluation = super.evalPosition();
+    // Add reserves:
+    evaluation += this.reserve["w"][V.PAWN];
+    evaluation -= this.reserve["b"][V.PAWN];
+    return evaluation;
+  }
+
+  getNotation(move) {
+    if (move.vanish.length == 0)
+      // Placement:
+      return "@" + V.CoordsToSquare(move.end);
+    if (move.appear.length == 0)
+      // Removal after capture:
+      return V.CoordsToSquare(move.start) + "X";
+    return (
+      V.CoordsToSquare(move.start) +
+      (move.vanish.length == 2 ? "x" : "") +
+      V.CoordsToSquare(move.end)
+    );
+  }
 
 };