Fix captures and some moves for Grand & Wildebeest

[vchess.git] / public / javascripts / base_rules.js

diff --git a/public/javascripts/base_rules.js b/public/javascripts/base_rules.js
index 26c7447..42775da 100644 (file)
--- a/public/javascripts/base_rules.js
+++ b/public/javascripts/base_rules.js
@@ -284,7 +284,7 @@ class ChessRules
                                i += step[0];
                                j += step[1];
                        }
-                       if (i>=0 && i<8 && j>=0 && j<8 && this.canTake([x,y], [i,j]))
+                       if (i>=0 && i<sizeX && j>=0 && j<sizeY && this.canTake([x,y], [i,j]))
                                moves.push(this.getBasicMove([x,y], [i,j]));
                }
                return moves;
@@ -547,14 +547,15 @@ class ChessRules
        // Is square x,y attacked by pawns of color c ?
        isAttackedByPawn([x,y], colors)
        {
+               const [sizeX,sizeY] = VariantRules.size;
                for (let c of colors)
                {
                        let pawnShift = (c=="w" ? 1 : -1);
-                       if (x+pawnShift>=0 && x+pawnShift<8)
+                       if (x+pawnShift>=0 && x+pawnShift<sizeX)
                        {
                                for (let i of [-1,1])
                                {
-                                       if (y+i>=0 && y+i<8 && this.getPiece(x+pawnShift,y+i)==VariantRules.PAWN
+                                       if (y+i>=0 && y+i<sizeY && this.getPiece(x+pawnShift,y+i)==VariantRules.PAWN
                                                && this.getColor(x+pawnShift,y+i)==c)
                                        {
                                                return true;
@@ -605,16 +606,18 @@ class ChessRules
        // Generic method for non-pawn pieces ("sliding or jumping"): is x,y attacked by piece != color ?
        isAttackedBySlideNJump([x,y], colors, piece, steps, oneStep)
        {
+               const [sizeX,sizeY] = VariantRules.size;
                for (let step of steps)
                {
                        let rx = x+step[0], ry = y+step[1];
-                       while (rx>=0 && rx<8 && ry>=0 && ry<8 && this.board[rx][ry] == VariantRules.EMPTY
-                               && !oneStep)
+                       while (rx>=0 && rx<sizeX && ry>=0 && ry<sizeY
+                               && this.board[rx][ry] == VariantRules.EMPTY && !oneStep)
                        {
                                rx += step[0];
                                ry += step[1];
                        }
-                       if (rx>=0 && rx<8 && ry>=0 && ry<8 && this.board[rx][ry] != VariantRules.EMPTY
+                       if (rx>=0 && rx<sizeX && ry>=0 && ry<sizeY
+                               && this.board[rx][ry] != VariantRules.EMPTY
                                && this.getPiece(rx,ry) == piece && colors.includes(this.getColor(rx,ry)))
                        {
                                return true;