修改绳的逻辑

Assets/Scenes/RopeTest.unity

@@ -488,10 +488,18 @@ PrefabInstance:
       propertyPath: startAnchor
       value: 
       objectReference: {fileID: 1005026351}
+    - target: {fileID: 114581403422500557, guid: ea6901d8aa7c41d41987d8ca92b02f6d, type: 3}
+      propertyPath: constrainToWaterSurface
+      value: 0
+      objectReference: {fileID: 0}
     - target: {fileID: 420085638995403055, guid: ea6901d8aa7c41d41987d8ca92b02f6d, type: 3}
       propertyPath: Rope
       value: 
       objectReference: {fileID: 410242110}
+    - target: {fileID: 420085638995403055, guid: ea6901d8aa7c41d41987d8ca92b02f6d, type: 3}
+      propertyPath: _rope
+      value: 
+      objectReference: {fileID: 410242110}
     - target: {fileID: 484878994603287356, guid: ea6901d8aa7c41d41987d8ca92b02f6d, type: 3}
       propertyPath: m_Parameters.widthCurve.m_Curve.Array.data[0].value
       value: 0.001
@@ -508,6 +516,10 @@ PrefabInstance:
       propertyPath: Rope
       value: 
       objectReference: {fileID: 1092033884}
+    - target: {fileID: 3199098293373602285, guid: ea6901d8aa7c41d41987d8ca92b02f6d, type: 3}
+      propertyPath: _rope
+      value: 
+      objectReference: {fileID: 1092033884}
     - target: {fileID: 7888891488031969805, guid: ea6901d8aa7c41d41987d8ca92b02f6d, type: 3}
       propertyPath: anchorTransform
       value: 
@@ -551,7 +563,7 @@ GameObject:
   - component: {fileID: 1181671548}
   - component: {fileID: 1181671547}
   - component: {fileID: 1181671546}
-  m_Layer: 0
+  m_Layer: 3
   m_Name: Terrain
   m_TagString: Untagged
   m_Icon: {fileID: 0}

Assets/Scripts/Fishing/New/View/FishingLine/FishingLineNode.cs

@@ -44,6 +44,8 @@ namespace NBF
             set => nodeType = value;
         }
 
+        public float Lenght => _joint != null ? _joint.linearLimit.limit : 0f;
+
         public Rigidbody Body => body;
 
         public MonoBehaviour Interaction => interaction;
@@ -91,6 +93,12 @@ namespace NBF
 
         public void SetLenght(float lenght)
         {
+            if (!_joint) return;
+            if (!Mathf.Approximately(lenght, _joint.linearLimit.limit))
+            {
+                _joint.linearLimit = new SoftJointLimit() { limit = lenght };
+                _rope.SetTargetLength(lenght - 0.1f);
+            }
         }
 
         #endregion

Assets/Scripts/Fishing/New/View/FishingLine/FishingLineSolver.cs

@@ -108,7 +108,7 @@ namespace NBF
         public void SetLenght(float length, int index = 0)
         {
             ConfigureStartNode();
-            var node = logicalNodes[index];
+            var node = logicalNodes[index + 1];
             if (node != null)
             {
                 node.SetLenght(length);

Assets/Scripts/Fishing/New/View/FishingLine/FishingLineTestController.cs

@@ -37,6 +37,7 @@ namespace NBF
             targetFirstSegmentLength =
                 Mathf.Clamp(initialFirstSegmentLength, minFirstSegmentLength, maxFirstSegmentLength);
             solver.SetLenght(targetFirstSegmentLength);
+            solver.SetLenght(0.5f, 1);
             // solver.BuildLine();
 
             solver.OnLineBreakRequested += OnLineBreakRequested;