去掉obi，使用自写绳索

Assets/Obi/Scripts/Common/Actors/IObiParticleCollection.cs

@@ -1,25 +0,0 @@
-using UnityEngine;
-using System.Collections;
-
-namespace Obi
-{
-    // Interface for classes that hold a collection of particles. Contains method to get common particle properties.
-    public interface IObiParticleCollection 
-    {
-        int particleCount { get; }
-        int activeParticleCount { get; }
-        bool usesOrientedParticles { get; }
-
-        int GetParticleRuntimeIndex(int index); // returns solver or blueprint index, depending on implementation.
-
-        Vector3 GetParticlePosition(int index);
-        Quaternion GetParticleOrientation(int index);
-
-        Vector3 GetParticleRestPosition(int index);
-        Quaternion GetParticleRestOrientation(int index);
-
-        void GetParticleAnisotropy(int index, ref Vector4 b1, ref Vector4 b2, ref Vector4 b3);
-        float GetParticleMaxRadius(int index);
-        Color GetParticleColor(int index);
-    }
-}