[EXILED::API] Adding SendFakeSceneLoading (#45)

* Added ScenesType and Corrisponding Methods for the Server and Player

* Fixing Building Error

* Applied the Change request

* Changes requested by Yamato made

* Fixed Building Errors

* Fix build

---------

Co-authored-by: VALERA771 <72030575+VALERA771@users.noreply.github.com>

EXILED/Exiled.API/Enums/ScenesType.cs

@@ -0,0 +1,47 @@
+// -----------------------------------------------------------------------
+// <copyright file="ScenesType.cs" company="Exiled Team">
+// Copyright (c) Exiled Team. All rights reserved.
+// Licensed under the CC BY-SA 3.0 license.
+// </copyright>
+// -----------------------------------------------------------------------
+
+namespace Exiled.API.Enums
+{
+    /// <summary>
+    /// Unique identifier for the different types of Scenes the client and server can load.
+    /// </summary>
+    public enum ScenesType
+    {
+        /// <summary>
+        /// The facility itself.
+        /// </summary>
+        Facility,
+
+        /// <summary>
+        /// The current main menu.
+        /// ! Will cause crash when trying joining servers !
+        /// </summary>
+        NewMainMenu,
+
+        /// <summary>
+        /// The old main menu.
+        /// </summary>
+        MainMenuRemastered,
+
+        /// <summary>
+        /// The old server list.
+        /// </summary>
+        FastMenu,
+
+        /// <summary>
+        /// The loading Screen.
+        /// ! Will cause crash when trying joining servers !
+        /// </summary>
+        PreLoader,
+
+        /// <summary>
+        /// A black menu before loading the <see cref="NewMainMenu"/>.
+        /// </summary>
+        Loader,
+    }
+}

EXILED/Exiled.API/Extensions/MirrorExtensions.cs

@@ -15,6 +15,7 @@ namespace Exiled.API.Extensions
     using System.Reflection.Emit;
     using System.Text;
 
+    using Exiled.API.Enums;
     using Features;
     using Features.Pools;
 
@@ -355,6 +356,35 @@ public static void MessageTranslated(this Player player, string words, string tr
             }
         }
 
+        /// <summary>
+        /// Sends to the player a Fake Change Scene.
+        /// </summary>
+        /// <param name="player">The player to send the Scene.</param>
+        /// <param name="newSceneName">The new Scene the client will load.</param>
+        public static void SendFakeSceneLoading(this Player player, ScenesType newSceneName)
+        {
+            SceneMessage message = new()
+            {
+                sceneName = newSceneName.ToString(),
+            };
+
+            player.Connection.Send(message);
+        }
+
+        /// <summary>
+        /// Emulation of the method SCP:SL uses to change scene.
+        /// </summary>
+        /// <param name="scene">The new Scene the client will load.</param>
+        public static void ChangeSceneToAllClients(ScenesType scene)
+        {
+            SceneMessage message = new()
+            {
+                sceneName = scene.ToString(),
+            };
+
+            NetworkServer.SendToAll(message);
+        }
+
         /// <summary>
         /// Scales an object for the specified player.
         /// </summary>

EXILED/Exiled.API/Features/Server.cs

@@ -11,6 +11,8 @@ namespace Exiled.API.Features
     using System.Collections.Generic;
     using System.Reflection;
 
+    using Exiled.API.Enums;
+
     using GameCore;
 
     using Interfaces;