X-Git-Url: https://git.auder.net/?a=blobdiff_plain;f=client%2Fsrc%2Fvariants%2FJoker.js;h=a3cbdad550086a52a10a20c4146d105ab869e312;hb=4c3031a52a1b95ad8002a3f055d4475130297a7b;hp=137249c4f83d5d0836bbbf064c46fd012f027ff5;hpb=459edd581fa23f511e224f07554944bbe53a2d70;p=vchess.git

diff --git a/client/src/variants/Joker.js b/client/src/variants/Joker.js
index 137249c4..a3cbdad5 100644
--- a/client/src/variants/Joker.js
+++ b/client/src/variants/Joker.js
@@ -11,8 +11,8 @@ export class JokerRules extends ChessRules {
     );
   }
 
-  static GenRandInitFen(randomness) {
-    const antikingFen = Antiking2Rules.GenRandInitFen(randomness);
+  static GenRandInitFen(options) {
+    const antikingFen = Antiking2Rules.GenRandInitFen(options);
     return antikingFen.replace('a', 'J').replace('A', 'j');
   }
 
@@ -48,7 +48,7 @@ export class JokerRules extends ChessRules {
 
   getPotentialJokerMoves([x, y]) {
     const moving =
-      super.getSlideNJumpMoves([x, y], V.steps[V.KNIGHT], "oneStep")
+      super.getSlideNJumpMoves([x, y], V.steps[V.KNIGHT], 1)
       .concat(super.getSlideNJumpMoves([x, y],
         V.steps[V.ROOK].concat(V.steps[V.BISHOP])));
     let swapping = [];
@@ -58,24 +58,40 @@ export class JokerRules extends ChessRules {
         // Following test is OK because only one Joker on board at a time
         if (this.board[i][j] != V.EMPTY && this.getColor(i, j) == c) {
           const p = this.getPiece(i, j);
-          swapping.push(
-            new Move({
-              vanish: [
-                new PiPo({ x: x, y: y, c: c, p: V.JOKER }),
-                new PiPo({ x: i, y: j, c: c, p: p })
-              ],
-              appear: [
-                new PiPo({ x: i, y: j, c: c, p: V.JOKER }),
-                new PiPo({ x: x, y: y, c: c, p: p })
-              ]
-            })
-          );
+          const lastRank = (c == 'w' ? 0 : 7);
+          if (p != V.KING && (p != V.PAWN || x != lastRank)) {
+            swapping.push(
+              new Move({
+                vanish: [
+                  new PiPo({ x: x, y: y, c: c, p: V.JOKER }),
+                  new PiPo({ x: i, y: j, c: c, p: p })
+                ],
+                appear: [
+                  new PiPo({ x: i, y: j, c: c, p: V.JOKER }),
+                  new PiPo({ x: x, y: y, c: c, p: p })
+                ]
+              })
+            );
+          }
         }
       }
     }
     return moving.concat(swapping);
   }
 
+  postPlay(move) {
+    super.postPlay(move);
+    // Was my king swapped?
+    if (move.vanish.length == 2 && move.vanish[1].p == V.KING)
+      this.kingPos[move.appear[1].c] = [move.appear[1].x, move.appear[1].y];
+  }
+
+  postUndo(move) {
+    super.postUndo(move);
+    if (move.vanish.length == 2 && move.vanish[1].p == V.KING)
+      this.kingPos[move.vanish[1].c] = [move.vanish[1].x, move.vanish[1].y];
+  }
+
   static get VALUES() {
     return Object.assign({ j: 2 }, ChessRules.VALUES);
   }