From 85db623bf2a8ba4530273080b963f4c5a98dad54 Mon Sep 17 00:00:00 2001
From: Catnies <catnies@foxmail.com>
Date: Thu, 26 Jun 2025 07:16:20 +0800
Subject: [PATCH] =?UTF-8?q?=E6=94=B9=E8=BF=9BSNBTReader,=20=E6=94=AF?=
 =?UTF-8?q?=E6=8C=81null=E5=80=BC.?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../java/net/momirealms/craftengine/core/util/SNBTReader.java  | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/core/src/main/java/net/momirealms/craftengine/core/util/SNBTReader.java b/core/src/main/java/net/momirealms/craftengine/core/util/SNBTReader.java
index 802751f1a..d95bce0d7 100644
--- a/core/src/main/java/net/momirealms/craftengine/core/util/SNBTReader.java
+++ b/core/src/main/java/net/momirealms/craftengine/core/util/SNBTReader.java
@@ -149,12 +149,13 @@ public final class SNBTReader extends DefaultStringReader {
             }
         }
         int tokenLength = getCursor() - tokenStart - lastWhitespace; // 计算值长度需要再减去尾部空格.
-        if (tokenLength == 0) throw new IllegalArgumentException("Empty value at position " + tokenStart);
+        if (tokenLength == 0) return null; // 如果值长度为0则返回null.
         if (contentHasWhitespace) return substring(tokenStart, tokenStart + tokenLength); // 如果值的中间有空格, 一定是字符串, 可直接返回.
 
         // 布尔值检查
         if (tokenLength == 4) {
             if (matchesAt(tokenStart, "true")) return Boolean.TRUE;
+            if (matchesAt(tokenStart, "null")) return null; // 支持 {key:null}.
         } else if (tokenLength == 5) {
             if (matchesAt(tokenStart, "false")) return Boolean.FALSE;
         }