From ed7440cc30e92b1e4c789734e844a9774ebd4127 Mon Sep 17 00:00:00 2001
From: ZiG60020405 <47026578+zhichaoxi2006@users.noreply.github.com>
Date: Wed, 25 Feb 2026 20:52:43 +0800
Subject: [PATCH] Fix NullPointerException when  draw an invalid pattern

---
 .../hexcasting/api/casting/eval/env/PlayerBasedCastEnv.java  | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/Common/src/main/java/at/petrak/hexcasting/api/casting/eval/env/PlayerBasedCastEnv.java b/Common/src/main/java/at/petrak/hexcasting/api/casting/eval/env/PlayerBasedCastEnv.java
index 1f5b6703f..79ad6b2ef 100644
--- a/Common/src/main/java/at/petrak/hexcasting/api/casting/eval/env/PlayerBasedCastEnv.java
+++ b/Common/src/main/java/at/petrak/hexcasting/api/casting/eval/env/PlayerBasedCastEnv.java
@@ -69,11 +69,10 @@ public ServerPlayer getCaster() {
     @Override
     protected double getCostModifier(PatternShapeMatch match) {
         ResourceLocation loc = actionKey(match);
-        if (isOfTag(IXplatAbstractions.INSTANCE.getActionRegistry(), loc, HexTags.Actions.CANNOT_MODIFY_COST)) {
+        if (loc != null && isOfTag(IXplatAbstractions.INSTANCE.getActionRegistry(), loc, HexTags.Actions.CANNOT_MODIFY_COST)) {
             return 1.0;
-        } else {
-            return this.caster.getAttributeValue(HexAttributes.MEDIA_CONSUMPTION_MODIFIER);
         }
+        return this.caster.getAttributeValue(HexAttributes.MEDIA_CONSUMPTION_MODIFIER);
     }
 
     @Override