From 5e2b53a53033706880f14119cbe3fdc0ed212eec Mon Sep 17 00:00:00 2001
From: GanX <2423855310@qq.com>
Date: Tue, 28 Oct 2025 09:17:35 +0800
Subject: [PATCH] =?UTF-8?q?fix(ConnectionLine):=E4=BF=AE=E5=A4=8DAB?=
 =?UTF-8?q?=E4=B8=A4=E7=82=B9=E9=87=8D=E5=A4=8D=E8=BF=9E=E6=8E=A5=EF=BC=8C?=
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 =?UTF-8?q?=E8=A7=A6=E5=8F=91=E9=87=8D=E5=90=AF=E7=9A=84BUG?=
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---
 .../Script/Gameplay/Connect/ConnectionLineManager.cs   | 10 ++++++++++
 .../Script/Gameplay/Player/PlayerConnectController.cs  |  2 +-
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/Assets/Script/Gameplay/Connect/ConnectionLineManager.cs b/Assets/Script/Gameplay/Connect/ConnectionLineManager.cs
index cf49f7d..464ecd7 100644
--- a/Assets/Script/Gameplay/Connect/ConnectionLineManager.cs
+++ b/Assets/Script/Gameplay/Connect/ConnectionLineManager.cs
@@ -26,6 +26,16 @@ namespace Script.Gameplay.Connect
 
         public ConnectionLine GenerateConnectionLine(IConnectable a, IConnectable b)
         {
+            // 先检测 a b 点是否已经存在连接线
+            foreach (var aline in a.ConnectionLines)
+            {
+                if (aline.PointA.GetGameObject() == b.GetGameObject() || aline.PointB.GetGameObject() == b.GetGameObject())
+                {
+                    Debug.Log("ab点间已经存在连接线");
+                    return null;
+                }
+            }
+            
             GameObject lineObject = Instantiate(linePrefab, this.transform);
             ConnectionLine connectionLine = lineObject.GetComponent<ConnectionLine>();
             if (connectionLine != null)
diff --git a/Assets/Script/Gameplay/Player/PlayerConnectController.cs b/Assets/Script/Gameplay/Player/PlayerConnectController.cs
index ddc1602..33e5e67 100644
--- a/Assets/Script/Gameplay/Player/PlayerConnectController.cs
+++ b/Assets/Script/Gameplay/Player/PlayerConnectController.cs
@@ -157,7 +157,7 @@ namespace Script.Gameplay.Player
                     return;
                 }
                 // 创建连接线
-                ConnectionLine connectionLine = ConnectionLineManager.Instance.GenerateConnectionLine(outTarget, inputTarget);
+                ConnectionLineManager.Instance.GenerateConnectionLine(outTarget, inputTarget);
   
                 // 重置信号目标
                 outTarget = null;