From 32a86c530bdf893dda4c7e95f7e0ae3cc18645ae Mon Sep 17 00:00:00 2001
From: kaokei <kaokei.rst@gmail.com>
Date: Sat, 7 Sep 2024 13:18:22 +0800
Subject: [PATCH] Update Node.cpp setSiblingIndex support negative index

Force index=0 when index smaller than -siblings.length.
---
 native/cocos/core/scene-graph/Node.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/native/cocos/core/scene-graph/Node.cpp b/native/cocos/core/scene-graph/Node.cpp
index bc84ecf0d26..5ec8550dd2d 100644
--- a/native/cocos/core/scene-graph/Node.cpp
+++ b/native/cocos/core/scene-graph/Node.cpp
@@ -353,7 +353,8 @@ void Node::setSiblingIndex(index_t index) {
         return;
     }
     ccstd::vector<IntrusivePtr<Node>> &siblings = _parent->_children;
-    index = index != -1 ? index : static_cast<index_t>(siblings.size()) - 1;
+    index = index >= 0 ? index : static_cast<index_t>(siblings.size()) + index;
+    index = index >= 0 ? index : 0;
     index_t oldIdx = getIdxOfChild(siblings, this);
     if (index != oldIdx) {
         if (oldIdx != CC_INVALID_INDEX) {