X-Git-Url: https://git.auder.net/?a=blobdiff_plain;f=client%2Fsrc%2Fbase_rules.js;h=f7a2fee1637af8bb516eee69e679e23ee3ba3a14;hb=a57faf48c575029ecbba41de0f87bfe11d8c4e4b;hp=69549525408d51fa349cac05fb2254db758c216b;hpb=4a2093139089632727de4f510127ef186cab528e;p=vchess.git

diff --git a/client/src/base_rules.js b/client/src/base_rules.js
index 69549525..f7a2fee1 100644
--- a/client/src/base_rules.js
+++ b/client/src/base_rules.js
@@ -22,8 +22,8 @@ export const Move = class Move {
   constructor(o) {
     this.appear = o.appear;
     this.vanish = o.vanish;
-    this.start = o.start ? o.start : { x: o.vanish[0].x, y: o.vanish[0].y };
-    this.end = o.end ? o.end : { x: o.appear[0].x, y: o.appear[0].y };
+    this.start = o.start || { x: o.vanish[0].x, y: o.vanish[0].y };
+    this.end = o.end || { x: o.appear[0].x, y: o.appear[0].y };
   }
 };
 
@@ -135,6 +135,19 @@ export const ChessRules = class ChessRules {
   static get LoseOnRepetition() {
     return false;
   }
+  // And in some others (Iceage), repetitions should be ignored:
+  static get IgnoreRepetition() {
+    return false;
+  }
+  loseOnRepetition() {
+    // In some variants, result depends on the position:
+    return V.LoseOnRepetition;
+  }
+
+  // At some stages, some games could wait clicks only:
+  onlyClick() {
+    return false;
+  }
 
   // Some variants use click infos:
   doClick() {
@@ -158,7 +171,7 @@ export const ChessRules = class ChessRules {
 
   // Turn "p" into "bp" (for board)
   static fen2board(f) {
-    return f.charCodeAt() <= 90 ? "w" + f.toLowerCase() : "b" + f;
+    return f.charCodeAt(0) <= 90 ? "w" + f.toLowerCase() : "b" + f;
   }
 
   // Check if FEN describes a board situation correctly
@@ -437,8 +450,10 @@ export const ChessRules = class ChessRules {
       // if more than 9 consecutive free spaces, break the integer,
       // otherwise FEN parsing will fail.
       if (count <= 9) return count;
-      // Currently only boards of size up to 11 or 12:
-      return "9" + (count - 9);
+      // Most boards of size < 18:
+      if (count <= 18) return "9" + (count - 9);
+      // Except Gomoku:
+      return "99" + (count - 18);
     };
     let position = "";
     for (let i = 0; i < V.size.x; i++) {
@@ -528,11 +543,11 @@ export const ChessRules = class ChessRules {
   }
 
   // Scan board for kings positions
+  // TODO: should be done from board, no need for the complete FEN
   scanKings(fen) {
     // Squares of white and black king:
     this.kingPos = { w: [-1, -1], b: [-1, -1] };
     const fenRows = V.ParseFen(fen).position.split("/");
-    const startRow = { 'w': V.size.x - 1, 'b': 0 };
     for (let i = 0; i < fenRows.length; i++) {
       let k = 0; //column index on board
       for (let j = 0; j < fenRows[i].length; j++) {
@@ -662,7 +677,7 @@ export const ChessRules = class ChessRules {
       case V.QUEEN: return this.getPotentialQueenMoves(sq);
       case V.KING: return this.getPotentialKingMoves(sq);
     }
-    return []; //never reached
+    return []; //never reached (but some variants may use it: Bario...)
   }
 
   // Build a regular move from its initial and destination squares.
@@ -713,7 +728,7 @@ export const ChessRules = class ChessRules {
       let j = y + step[1];
       while (V.OnBoard(i, j) && this.board[i][j] == V.EMPTY) {
         moves.push(this.getBasicMove([x, y], [i, j]));
-        if (oneStep) continue outerLoop;
+        if (!!oneStep) continue outerLoop;
         i += step[0];
         j += step[1];
       }
@@ -754,9 +769,8 @@ export const ChessRules = class ChessRules {
       if (!!promotions) finalPieces = promotions;
       else if (!!V.PawnSpecs.promotions) finalPieces = V.PawnSpecs.promotions;
     }
-    let tr = null;
     for (let piece of finalPieces) {
-      tr = (piece != V.PAWN ? { c: color, p: piece } : null);
+      const tr = (piece != V.PAWN ? { c: color, p: piece } : null);
       moves.push(this.getBasicMove([x1, y1], [x2, y2], tr));
     }
   }
@@ -892,7 +906,6 @@ export const ChessRules = class ChessRules {
     // Castling ?
     const oppCol = V.GetOppCol(c);
     let moves = [];
-    let i = 0;
     // King, then rook:
     finalSquares = finalSquares || [ [2, 3], [V.size.y - 2, V.size.y - 3] ];
     const castlingKing = this.board[x][y].charAt(1);
@@ -919,7 +932,7 @@ export const ChessRules = class ChessRules {
       // Nothing on the path of the king ? (and no checks)
       const finDist = finalSquares[castleSide][0] - y;
       let step = finDist / Math.max(1, Math.abs(finDist));
-      i = y;
+      let i = y;
       do {
         if (
           (!castleInCheck && this.isAttacked([x, i], oppCol)) ||
@@ -1031,6 +1044,9 @@ export const ChessRules = class ChessRules {
 
   // Stop at the first move found
   // TODO: not really, it explores all moves from a square (one is enough).
+  // Possible fix: add extra arg "oneMove" to getPotentialMovesFrom,
+  // and then return only boolean true at first move found
+  // (in all getPotentialXXXMoves() ... for all variants ...)
   atLeastOneMove() {
     const color = this.turn;
     for (let i = 0; i < V.size.x; i++) {
@@ -1073,8 +1089,7 @@ export const ChessRules = class ChessRules {
         V.OnBoard(rx, ry) &&
         this.board[rx][ry] != V.EMPTY &&
         this.getPiece(rx, ry) == piece &&
-        this.getColor(rx, ry) == color &&
-        this.canTake([rx, ry], [x, y])
+        this.getColor(rx, ry) == color
       ) {
         return true;
       }
@@ -1174,6 +1189,7 @@ export const ChessRules = class ChessRules {
   }
 
   updateCastleFlags(move, piece, color) {
+    // TODO: check flags. If already off, no need to always re-evaluate
     const c = color || V.GetOppCol(this.turn);
     const firstRank = (c == "w" ? V.size.x - 1 : 0);
     // Update castling flags if rooks are moved