将Spline移出Plugin，以调整SplineRenderer的OnWillCameraRender

Assets/Dreamteck/Utilities/TS_Bounds.cs

@@ -0,0 +1,66 @@
+using UnityEngine;
+using System.Collections;
+
+namespace Dreamteck
+{
+    [System.Serializable]
+    public class TS_Bounds
+    {
+        public Vector3 center = Vector3.zero;
+        public Vector3 extents = Vector3.zero;
+        public Vector3 max = Vector3.zero;
+        public Vector3 min = Vector3.zero;
+        public Vector3 size = Vector3.zero;
+
+        public TS_Bounds()
+        {
+
+        }
+
+        public TS_Bounds(Bounds bounds)
+        {
+            center = bounds.center;
+            extents = bounds.extents;
+            max = bounds.max;
+            min = bounds.min;
+            size = bounds.size;
+        }
+
+        public TS_Bounds(Vector3 c, Vector3 s)
+        {
+            center = c;
+            size = s;
+            extents = s / 2;
+            max = center + extents;
+            min = center - extents;
+        }
+
+        public TS_Bounds(Vector3 min, Vector3 max, Vector3 center)
+        {
+            size = new Vector3(max.x - min.x, max.y - min.y, max.z - min.z);
+            extents = size / 2f;
+            this.min = min;
+            this.max = max;
+            this.center = center;
+        }
+
+        public void CreateFromMinMax(Vector3 min, Vector3 max)
+        {
+            size.x = max.x - min.x;
+            size.y = max.y - min.y;
+            size.z = max.z - min.z;
+            extents = size / 2f;
+            this.min = min;
+            this.max = max;
+            center = (Vector3.Lerp(min, max, 0.5f));
+        }
+
+        public bool Contains(Vector3 point)
+        {
+            if (point.x < min.x || point.x > max.x) return false;
+            if (point.y < min.y || point.y > max.y) return false;
+            if (point.z < min.z || point.z > max.z) return false;
+            return true;
+        }
+    }
+}