Merge remote-tracking branch 'origin/1.1' into linux-editor

# Conflicts:
#	Source/Engine/Core/Math/BoundingSphere.cs
#	Source/Engine/Debug/DebugDraw.cpp
#	Source/Engine/Platform/Win32/Win32Platform.cpp
#	Source/Engine/Platform/Win32/Win32Platform.h

Source/Engine/Engine/Engine.cpp

@@ -36,6 +36,7 @@
 #include "Engine/Profiler/Profiler.h"
 #if USE_EDITOR
 #include "Editor/Editor.h"
+#include "Editor/ProjectInfo.h"
 #include "Editor/Managed/ManagedEditor.h"
 #else
 #include "Engine/Utilities/Encryption.h"

Source/Engine/Engine/SceneReference.cs

@@ -7,7 +7,7 @@ namespace FlaxEngine
     /// <summary>
     /// Represents the reference to the scene asset. Stores the unique ID of the scene to reference. Can be used to load the selected scene.
     /// </summary>
-    public struct SceneReference
+    public struct SceneReference : IComparable, IComparable<Guid>, IComparable<SceneReference>
     {
         /// <summary>
         /// The identifier of the scene asset (and the scene object).
@@ -22,5 +22,93 @@ namespace FlaxEngine
         {
             ID = id;
         }
+
+        /// <summary>
+        /// Compares two values and returns true if are equal or false if unequal.
+        /// </summary>
+        /// <param name="left">The left value.</param>
+        /// <param name="right">The right value.</param>
+        /// <returns>True if values are equal, otherwise false.</returns>
+        public static bool operator ==(SceneReference left, SceneReference right)
+        {
+            return left.ID == right.ID;
+        }
+
+        /// <summary>
+        /// Compares two values and returns false if are equal or true if unequal.
+        /// </summary>
+        /// <param name="left">The left value.</param>
+        /// <param name="right">The right value.</param>
+        /// <returns>True if values are not equal, otherwise false.</returns>
+        public static bool operator !=(SceneReference left, SceneReference right)
+        {
+            return left.ID != right.ID;
+        }
+
+        /// <summary>
+        /// Compares two values and returns true if are equal or false if unequal.
+        /// </summary>
+        /// <param name="left">The left value.</param>
+        /// <param name="right">The right value.</param>
+        /// <returns>True if values are equal, otherwise false.</returns>
+        public static bool operator ==(SceneReference left, Guid right)
+        {
+            return left.ID == right;
+        }
+
+        /// <summary>
+        /// Compares two values and returns false if are equal or true if unequal.
+        /// </summary>
+        /// <param name="left">The left value.</param>
+        /// <param name="right">The right value.</param>
+        /// <returns>True if values are not equal, otherwise false.</returns>
+        public static bool operator !=(SceneReference left, Guid right)
+        {
+            return left.ID != right;
+        }
+
+        /// <inheritdoc />
+        public int CompareTo(object obj)
+        {
+            if (obj is Guid id)
+                return CompareTo(id);
+            if (obj is SceneReference other)
+                return CompareTo(other);
+            return 0;
+        }
+
+        /// <inheritdoc />
+        public int CompareTo(Guid other)
+        {
+            return ID.CompareTo(other);
+        }
+
+        /// <inheritdoc />
+        public int CompareTo(SceneReference other)
+        {
+            return ID.CompareTo(other.ID);
+        }
+
+        /// <inheritdoc />
+        public override bool Equals(object obj)
+        {
+            if (obj is Guid id)
+                return ID == id;
+            if (obj is SceneReference other)
+                return ID == other.ID;
+            return false;
+        }
+
+        /// <inheritdoc />
+        public override int GetHashCode()
+        {
+            return ID.GetHashCode();
+        }
+
+        /// <inheritdoc />
+        public override string ToString()
+        {
+            return ID.ToString();
+        }
     }
 }