From: Benjamin Auder <benjamin.auder@somewhere>
Date: Sun, 15 Mar 2020 14:49:32 +0000 (+0100)
Subject: Fix bug in Eightpieces rules (division by 0)
X-Git-Url: https://git.auder.net/%7B%7B%20asset%28%27mixstore/css/current/img/doc/%3C?a=commitdiff_plain;h=518a0dc97d18276d7c0cf946c69ec761b1ed50a5;p=vchess.git

Fix bug in Eightpieces rules (division by 0)
---

diff --git a/client/src/variants/Eightpieces.js b/client/src/variants/Eightpieces.js
index beaddbe9..f7d93d84 100644
--- a/client/src/variants/Eightpieces.js
+++ b/client/src/variants/Eightpieces.js
@@ -924,7 +924,7 @@ export const VariantRules = class EightpiecesRules extends ChessRules {
             absDeltaX = Math.abs(deltaX);
       const deltaY = y2 - y1,
             absDeltaY = Math.abs(deltaY);
-      const step = [ deltaX / absDeltaX, deltaY / absDeltaY ];
+      const step = [ deltaX / absDeltaX || 0, deltaY / absDeltaY || 0 ];
       if (
         // Check that the step is a priori valid:
         (absDeltaX != absDeltaY && deltaX != 0 && deltaY != 0) ||