去掉obi，使用自写绳索

Assets/Obi/Scripts/RopeAndRod/Utils/ObiRopeAttach.cs

@@ -1,23 +0,0 @@
-using UnityEngine;
-
-namespace Obi
-{
-    public class ObiRopeAttach : MonoBehaviour
-    {
-        public ObiPathSmoother smoother;
-        [Range(0,1)]
-        public float m;
-
-        public void LateUpdate()
-		{
-            if (smoother != null && smoother.actor.isLoaded)
-            {
-                var trfm = smoother.actor.solver.transform;
-                ObiPathFrame section = smoother.GetSectionAt(m);
-                transform.position = trfm.TransformPoint(section.position);
-                transform.rotation = trfm.rotation * Quaternion.LookRotation(section.tangent, section.binormal);
-            }
-		}
-
-	}
-}