Generalize pawn movements: cleaner and smaller code

[vchess.git] / client / src / variants / Crazyhouse.js

diff --git a/client/src/variants/Crazyhouse.js b/client/src/variants/Crazyhouse.js
index 16db148..321bf4c 100644 (file)
--- a/client/src/variants/Crazyhouse.js
+++ b/client/src/variants/Crazyhouse.js
@@ -1,7 +1,7 @@
 import { ChessRules, PiPo, Move } from "@/base_rules";
 import { ArrayFun } from "@/utils/array";
 
-export const VariantRules = class CrazyhouseRules extends ChessRules {
+export class CrazyhouseRules extends ChessRules {
   static IsGoodFen(fen) {
     if (!ChessRules.IsGoodFen(fen)) return false;
     const fenParsed = V.ParseFen(fen);
@@ -28,22 +28,28 @@ export const VariantRules = class CrazyhouseRules extends ChessRules {
     });
   }
 
+  getEpSquare(moveOrSquare) {
+    if (typeof moveOrSquare !== "object" || moveOrSquare.vanish.length > 0)
+      return super.getEpSquare(moveOrSquare);
+    // Landing move: no en-passant
+    return undefined;
+  }
+
   static GenRandInitFen(randomness) {
     return ChessRules.GenRandInitFen(randomness) + " 0000000000 -";
   }
 
   getFen() {
     return (
-      super.getFen() + " " + this.getReserveFen() + " " + this.getPromotedFen()
+      super.getFen() + " " +
+      this.getReserveFen() + " " +
+      this.getPromotedFen()
     );
   }
 
   getFenForRepeat() {
     return (
-      this.getBaseFen() + "_" +
-      this.getTurnFen() + "_" +
-      this.getFlagsFen() + "_" +
-      this.getEnpassantFen() + "_" +
+      super.getFenForRepeat() + "_" +
       this.getReserveFen() + "_" +
       this.getPromotedFen()
     );
@@ -194,8 +200,8 @@ export const VariantRules = class CrazyhouseRules extends ChessRules {
     return true;
   }
 
-  updateVariables(move) {
-    super.updateVariables(move);
+  postPlay(move) {
+    super.postPlay(move);
     if (move.vanish.length == 2 && move.appear.length == 2) return; //skip castle
     const color = move.appear[0].c;
     if (move.vanish.length == 0) {
@@ -212,8 +218,8 @@ export const VariantRules = class CrazyhouseRules extends ChessRules {
     else if (move.vanish.length == 2) this.reserve[color][move.vanish[1].p]++;
   }
 
-  unupdateVariables(move) {
-    super.unupdateVariables(move);
+  postUndo(move) {
+    super.postUndo(move);
     if (move.vanish.length == 2 && move.appear.length == 2) return;
     const color = this.turn;
     if (move.vanish.length == 0) {
@@ -227,7 +233,6 @@ export const VariantRules = class CrazyhouseRules extends ChessRules {
   }
 
   static get SEARCH_DEPTH() {
-    // High branching factor
     return 2;
   }