From 3ff6be4cb0689ef31d014262012798ad59f3d22f Mon Sep 17 00:00:00 2001
From: Electroblob77 <35599699+Electroblob77@users.noreply.github.com>
Date: Thu, 9 Apr 2020 23:18:23 +0100
Subject: [PATCH] Ignore empty slot books in the lectern GUI

---
 src/main/java/electroblob/wizardry/client/gui/GuiLectern.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main/java/electroblob/wizardry/client/gui/GuiLectern.java b/src/main/java/electroblob/wizardry/client/gui/GuiLectern.java
index ee6ff187..188329ee 100644
--- a/src/main/java/electroblob/wizardry/client/gui/GuiLectern.java
+++ b/src/main/java/electroblob/wizardry/client/gui/GuiLectern.java
@@ -398,7 +398,7 @@ public class GuiLectern extends GuiSpellInfo implements ISpellSortable {
 
 				if(stack.getItem() instanceof ItemSpellBook){
 					Spell spell = Spell.byMetadata(stack.getMetadata());
-					if(!availableSpells.contains(spell)) availableSpells.add(spell);
+					if(spell != Spells.none && !availableSpells.contains(spell)) availableSpells.add(spell);
 				}
 			}
 		}