Fix parseInt() usage, rename Doubleorda --> Ordamirror, implement Clorange variant

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

diff --git a/client/src/variants/Wormhole.js b/client/src/variants/Wormhole.js
index 462cb3b..1f3ecd2 100644 (file)
--- a/client/src/variants/Wormhole.js
+++ b/client/src/variants/Wormhole.js
@@ -1,6 +1,6 @@
 import { ChessRules } from "@/base_rules";
 
-export const VariantRules = class WormholeRules extends ChessRules {
+export class WormholeRules extends ChessRules {
   static get HasFlags() {
     return false;
   }
@@ -28,6 +28,28 @@ export const VariantRules = class WormholeRules extends ChessRules {
     return b;
   }
 
+  static IsGoodPosition(position) {
+    if (position.length == 0) return false;
+    const rows = position.split("/");
+    if (rows.length != V.size.x) return false;
+    let kings = { "k": 0, "K": 0 };
+    for (let row of rows) {
+      let sumElts = 0;
+      for (let i = 0; i < row.length; i++) {
+        if (['K','k'].includes(row[i])) kings[row[i]]++;
+        if (['x'].concat(V.PIECES).includes(row[i].toLowerCase())) sumElts++;
+        else {
+          const num = parseInt(row[i], 10);
+          if (isNaN(num)) return false;
+          sumElts += num;
+        }
+      }
+      if (sumElts != V.size.y) return false;
+    }
+    if (Object.values(kings).some(v => v != 1)) return false;
+    return true;
+  }
+
   getSquareAfter(square, movement) {
     let shift1, shift2;
     if (Array.isArray(movement[0])) {
@@ -201,13 +223,13 @@ export const VariantRules = class WormholeRules extends ChessRules {
     return this.getJumpMoves(sq, V.steps[V.KING]);
   }
 
-  isAttackedByJump([x, y], colors, piece, steps) {
+  isAttackedByJump([x, y], color, piece, steps) {
     for (let step of steps) {
       const sq = this.getSquareAfter([x,y], step);
       if (
         sq &&
-        this.getPiece(sq[0], sq[1]) === piece &&
-        colors.includes(this.getColor(sq[0], sq[1]))
+        this.getPiece(sq[0], sq[1]) == piece &&
+        this.getColor(sq[0], sq[1]) == color
       ) {
         return true;
       }
@@ -215,53 +237,51 @@ export const VariantRules = class WormholeRules extends ChessRules {
     return false;
   }
 
-  isAttackedByPawn([x, y], colors) {
-    for (let c of colors) {
-      const pawnShift = c == "w" ? 1 : -1;
-      for (let i of [-1, 1]) {
-        const sq = this.getSquareAfter([x,y], [pawnShift,i]);
-        if (
-          sq &&
-          this.getPiece(sq[0], sq[1]) == V.PAWN &&
-          this.getColor(sq[0], sq[1]) == c
-        ) {
-          return true;
-        }
+  isAttackedByPawn([x, y], color) {
+    const pawnShift = (color == "w" ? 1 : -1);
+    for (let i of [-1, 1]) {
+      const sq = this.getSquareAfter([x,y], [pawnShift,i]);
+      if (
+        sq &&
+        this.getPiece(sq[0], sq[1]) == V.PAWN &&
+        this.getColor(sq[0], sq[1]) == color
+      ) {
+        return true;
       }
     }
     return false;
   }
 
-  isAttackedByRook(sq, colors) {
-    return this.isAttackedByJump(sq, colors, V.ROOK, V.steps[V.ROOK]);
+  isAttackedByRook(sq, color) {
+    return this.isAttackedByJump(sq, color, V.ROOK, V.steps[V.ROOK]);
   }
 
-  isAttackedByKnight(sq, colors) {
+  isAttackedByKnight(sq, color) {
     // NOTE: knight attack is not symmetric in this variant:
     // steps order need to be reversed.
     return this.isAttackedByJump(
       sq,
-      colors,
+      color,
       V.KNIGHT,
       V.steps[V.KNIGHT].map(s => s.reverse())
     );
   }
 
-  isAttackedByBishop(sq, colors) {
-    return this.isAttackedByJump(sq, colors, V.BISHOP, V.steps[V.BISHOP]);
+  isAttackedByBishop(sq, color) {
+    return this.isAttackedByJump(sq, color, V.BISHOP, V.steps[V.BISHOP]);
   }
 
-  isAttackedByQueen(sq, colors) {
+  isAttackedByQueen(sq, color) {
     return this.isAttackedByJump(
       sq,
-      colors,
+      color,
       V.QUEEN,
       V.steps[V.ROOK].concat(V.steps[V.BISHOP])
     );
   }
 
-  isAttackedByKing(sq, colors) {
-    return this.isAttackedByJump(sq, colors, V.KING, V.steps[V.KING]);
+  isAttackedByKing(sq, color) {
+    return this.isAttackedByJump(sq, color, V.KING, V.steps[V.KING]);
   }
 
   // NOTE: altering move in getBasicMove doesn't work and wouldn't be logical.
@@ -272,8 +292,7 @@ export const VariantRules = class WormholeRules extends ChessRules {
   }
 
   getCurrentScore() {
-    if (this.atLeastOneMove())
-      return "*";
+    if (this.atLeastOneMove()) return "*";
     // No valid move: I lose
     return this.turn == "w" ? "0-1" : "1-0";
   }