Project refactor, namespace cleanup, splitting UI/functionality.

src/Core/Unity/UnityHelper.cs

@@ -0,0 +1,62 @@
+using UnityEngine;
+
+namespace UnityExplorer.Core.Unity
+{
+    public static class UnityHelper
+    {
+        private static Camera m_mainCamera;
+
+        public static Camera MainCamera
+        {
+            get
+            {
+                if (!m_mainCamera)
+                {
+                    m_mainCamera = Camera.main;
+                }
+                return m_mainCamera;
+            }
+        }
+
+        public static bool IsNullOrDestroyed(this object obj, bool suppressWarning = true)
+        {
+            var unityObj = obj as Object;
+            if (obj == null)
+            {
+                if (!suppressWarning)
+                    ExplorerCore.LogWarning("The target instance is null!");
+
+                return true;
+            }
+            else if (obj is Object)
+            {
+                if (!unityObj)
+                {
+                    if (!suppressWarning)
+                        ExplorerCore.LogWarning("The target UnityEngine.Object was destroyed!");
+
+                    return true;
+                }
+            }
+            return false;
+        }
+
+        public static string ToStringLong(this Vector3 vec)
+        {
+            return $"{vec.x:F3}, {vec.y:F3}, {vec.z:F3}";
+        }
+
+        public static string GetTransformPath(this Transform t, bool includeThisName = false)
+        {
+            string path = includeThisName ? t.transform.name : "";
+
+            while (t.parent != null)
+            {
+                t = t.parent;
+                path = $"{t.name}/{path}";
+            }
+
+            return path;
+        }
+    }
+}