基础内容

必要插件安装
缓动曲线和动画基础
ElementFolder，Track与其次级模块，PathNode重构

Assets/Plugins/Dreamteck/Utilities/TransformUtility.cs

@@ -0,0 +1,86 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+namespace Dreamteck
+{
+    public static class TransformUtility
+    {
+        public static Vector3 GetPosition(Matrix4x4 m)
+        {
+            return m.GetColumn(3);
+        }
+
+        public static Quaternion GetRotation(Matrix4x4 m)
+        {
+            return Quaternion.LookRotation(m.GetColumn(2), m.GetColumn(1));
+        }
+
+        public static Vector3 GetScale(Matrix4x4 m)
+        {
+            return new Vector3(m.GetColumn(0).magnitude, m.GetColumn(1).magnitude, m.GetColumn(2).magnitude);
+        }
+
+        public static void SetPosition(ref Matrix4x4 m, ref Vector3 p)
+        {
+            m.SetColumn(3, new Vector4(p.x, p.y, p.z, 1f));
+        }
+
+        public static void GetChildCount(Transform parent, ref int count)
+        {
+            foreach (Transform child in parent)
+            {
+                count++;
+                GetChildCount(child, ref count);
+            }
+        }
+
+        public static void MergeBoundsRecursively(this Transform rootParent, Transform tr, ref Bounds bounds, string nameToIgnore = null)
+        {
+            foreach (Transform child in tr)
+            {
+                if (!string.IsNullOrEmpty(nameToIgnore) && child.name == nameToIgnore)
+                {
+                    continue;
+                }
+
+                rootParent.MergeBoundsRecursively(child, ref bounds);
+
+                var meshFilter = child.GetComponent<MeshFilter>();
+
+                if (meshFilter == null) continue;
+                if (meshFilter.sharedMesh == null)
+                {
+                    Debug.LogError("MESH FILTER " + meshFilter.name + " IS MISSING A MESH");
+                    continue;
+                }
+                var min = child.TransformPoint(meshFilter.sharedMesh.bounds.min);
+                var max = child.TransformPoint(meshFilter.sharedMesh.bounds.max);
+
+                bounds.Encapsulate(rootParent.InverseTransformPoint(min));
+                bounds.Encapsulate(rootParent.InverseTransformPoint(max));
+            }
+        }
+
+        public static void DestroyChildren(this Transform src)
+        {
+            int count = src.childCount;
+            for (int i = 0; i < count; i++)
+            {
+                UnityEngine.Object.Destroy(src.GetChild(i).gameObject);
+            }
+        }
+
+        public static bool IsParent(Transform child, Transform parent)
+        {
+            Transform current = child;
+            while(current.parent != null)
+            {
+                current = current.parent;
+                if (current == parent) return true;
+            }
+            return false;
+        }
+    }
+}