From 6649dc1ca54f9ccd125bebffdcd88837cec6d36a Mon Sep 17 00:00:00 2001
From: DKChan <524912269@qq.com>
Date: Thu, 24 Sep 2026 04:47:39 +0800
Subject: [PATCH] =?UTF-8?q?fix(board):=20SubViewport=20=E6=89=8B=E8=AE=BE?=
 =?UTF-8?q?=E5=B0=BA=E5=AF=B8=E8=AD=A6=E5=91=8A=E6=B8=85=E9=99=A4=E2=80=94?=
 =?UTF-8?q?=E2=80=94=E6=A0=91=E5=86=85=20stretch=20=E5=AE=B9=E5=99=A8?=
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---
 game/presentation/views/board_view.gd | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/game/presentation/views/board_view.gd b/game/presentation/views/board_view.gd
index e9bd731c..20399c61 100644
--- a/game/presentation/views/board_view.gd
+++ b/game/presentation/views/board_view.gd
@@ -231,7 +231,9 @@ func _update_world_size() -> void:
 		return
 	var px := Vector2(_board.width, _board.height) * (_cell + float(SEP)) - Vector2(SEP, SEP)
 	_svp_container.custom_minimum_size = px
-	_viewport.size = px   # 树内 stretch=true 由容器回写同值；树外（冒烟直建）此处保 1:1
+	# 树内 stretch=true 时 SubViewport 尺寸由容器接管（手设被引擎拒绝并刷警告）；树外（冒烟直建）才需手设保 1:1
+	if not _svp_container.is_inside_tree():
+		_viewport.size = px
 
 
 # 真实输入路径（ADR-0006 Decision 3）：壳层 _gui_input → 板级公式换算 → 复用既有 hover/点选/chord 出口