Fix FenUtil.setupPieces and Antiking variants

[xogo.git] / variants / _Antiking / class.js

diff --git a/variants/_Antiking/class.js b/variants/_Antiking/class.js
index 941bd82..5838ed6 100644 (file)
--- a/variants/_Antiking/class.js
+++ b/variants/_Antiking/class.js
@@ -37,8 +37,8 @@ export default class AbstractAntikingRules extends ChessRules {
     return ['k', 'a'].includes(p);
   }
 
-  // NOTE: canTake includes (wrong) captures of antiking,
-  // to not go to low-level using findDestSquares()
+  // NOTE: canTake includes (wrong) captures of (anti)king,
+  // to detect attacks on (anti)kings.
   canTake([x1, y1], [x2, y2]) {
     const piece1 = this.getPiece(x1, y1);
     const color1 = this.getColor(x1, y1);
@@ -49,16 +49,14 @@ export default class AbstractAntikingRules extends ChessRules {
     );
   }
 
-  // Remove captures of antiking (see above)
+  // Remove captures of (anti)king (see above)
   getPotentialMovesFrom([x, y]) {
     return super.getPotentialMovesFrom([x, y]).filter(m =>
-      m.vanish.length == 1 || m.vanish[1].p != 'a');
+      m.vanish.length == 1 || !['k', 'a'].includes(m.vanish[1].p));
   }
 
   underCheck(square_s, color) {
     let res = false;
-    if (!Array.isArray(square_s[0]))
-      square_s = [square_s];
     square_s.forEach(sq => {
       switch (this.getPiece(sq[0], sq[1])) {
         case 'k':