variants/Crossing/class.js

   1 import ChessRules from "/base_rules.js";
   2
   3 export default class CrossingRules extends ChessRules {
   4
   5   getSvgChessboard() {
   6     let svg = super.getSvgChessboard();
   7     return (
   8       svg.slice(0, -6) +
   9       '<line x1="0" y1="40" x2="80" y2="40" ' +
  10       'style="stroke:black;stroke-width:0.2"/></svg>'
  11     );
  12   }
  13
  14   getCurrentScore(move_s) {
  15     const res = super.getCurrentScore(move_s);
  16     if (res != "*")
  17       return res;
  18     // Turn has changed:
  19     const color = V.GetOppTurn(this.turn);
  20     const secondHalf = (color == 'w' ? [0, 1, 2, 3] : [4, 5, 6, 7]);
  21     for (let move of move_s) {
  22       if (
  23         move.appear.length >= 1 &&
  24         move.appear[0].p == 'k' &&
  25         secondHalf.includes(move.appear[0].x)
  26       ) {
  27         // Half-board is crossed
  28         return color == "w" ? "1-0" : "0-1";
  29       }
  30     }
  31     return "*";
  32   }
  33
  34 };