From 2fd84a648c299eceeba66dc59a445daede98a06e Mon Sep 17 00:00:00 2001
From: Peter Osterlund <peterosterlund2@gmail.com>
Date: Sat, 20 Feb 2021 13:44:26 +0100
Subject: [PATCH] Use embedded net when UCI option EvalFile has empty value

---
 .../java/org/petero/droidfish/engine/InternalStockFish.java    | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/DroidFishApp/src/main/java/org/petero/droidfish/engine/InternalStockFish.java b/DroidFishApp/src/main/java/org/petero/droidfish/engine/InternalStockFish.java
index 98e3fd5..b2cd280 100644
--- a/DroidFishApp/src/main/java/org/petero/droidfish/engine/InternalStockFish.java
+++ b/DroidFishApp/src/main/java/org/petero/droidfish/engine/InternalStockFish.java
@@ -165,7 +165,8 @@ public class InternalStockFish extends ExternalEngine {
      *  pointing to the network file embedded in DroidFish. */
     @Override
     public boolean setOption(String name, String value) {
-        if (name.toLowerCase(Locale.US).equals(netOption) && defaultNet.equals(value)) {
+        if (name.toLowerCase(Locale.US).equals(netOption) &&
+            (defaultNet.equals(value) || value.isEmpty())) {
             getUCIOptions().getOption(name).setFromString(value);
             value = defaultNetFile.getAbsolutePath();
             writeLineToEngine(String.format(Locale.US, "setoption name %s value %s", name, value));