Workaround unselectable text: allow PGN download

[vchess.git] / public / javascripts / variants / Zen.js

diff --git a/public/javascripts/variants/Zen.js b/public/javascripts/variants/Zen.js
index d9e2294..bfc0e0a 100644 (file)
--- a/public/javascripts/variants/Zen.js
+++ b/public/javascripts/variants/Zen.js
@@ -1,5 +1,11 @@
 class ZenRules extends ChessRules
 {
+       // NOTE: enPassant, if enabled, would need to redefine carefully getEpSquare
+       getEpSquare(move)
+       {
+               return undefined;
+       }
+
        // TODO: some duplicated code in 2 next functions
        getSlideNJumpMoves(x, y, color, steps, oneStep)
        {
@@ -108,6 +114,7 @@ class ZenRules extends ChessRules
                let [sizeX,sizeY] = VariantRules.size;
                let shift = (color == 'w' ? -1 : 1);
                let startRank = (color == 'w' ? sizeY-2 : 1);
+               let firstRank = (color == 'w' ? sizeY-1 : 0);
                let lastRank = (color == "w" ? 0 : sizeY-1);
 
                if (x+shift >= 0 && x+shift < sizeX && x+shift != lastRank)
@@ -116,7 +123,7 @@ class ZenRules extends ChessRules
                        if (this.board[x+shift][y] == V.EMPTY)
                        {
                                moves.push(this.getBasicMove(x, y, x+shift, y));
-                               if (x==startRank && this.board[x+2*shift][y] == V.EMPTY)
+                               if ([startRank,firstRank].includes(x) && this.board[x+2*shift][y] == V.EMPTY)
                                {
                                        //two squares jump
                                        moves.push(this.getBasicMove(x, y, x+2*shift, y));
@@ -135,21 +142,7 @@ class ZenRules extends ChessRules
                        });
                }
 
-               // En passant
-               const Lep = this.epSquares.length;
-               const epSquare = Lep>0 ? this.epSquares[Lep-1] : undefined;
-               if (!!epSquare && epSquare.x == x+shift && Math.abs(epSquare.y - y) == 1)
-               {
-                       let epStep = epSquare.y - y;
-                       var enpassantMove = this.getBasicMove(x, y, x+shift, y+epStep);
-                       enpassantMove.vanish.push({
-                               x: x,
-                               y: y+epStep,
-                               p: 'p',
-                               c: this.getColor(x,y+epStep)
-                       });
-                       moves.push(enpassantMove);
-               }
+               // No en passant here
 
                // Add "zen" captures
                Array.prototype.push.apply(moves, this.findCaptures(x, y, color));