From c6811c98edebbbf2256efda58395e055aa6c1167 Mon Sep 17 00:00:00 2001
From: Zt Wang <mymisting@gmail.com>
Date: Tue, 21 Jun 2016 22:34:15 +0800
Subject: [PATCH] Add protection of gem locks in region

---
 TShockAPI/ConfigFile.cs      |  4 ++
 TShockAPI/GetDataHandlers.cs | 81 +++++++++++++++++++++++++++++++++++-
 2 files changed, 84 insertions(+), 1 deletion(-)

diff --git a/TShockAPI/ConfigFile.cs b/TShockAPI/ConfigFile.cs
index d3530088..c4f9cf35 100755
--- a/TShockAPI/ConfigFile.cs
+++ b/TShockAPI/ConfigFile.cs
@@ -319,6 +319,10 @@ namespace TShockAPI
 		[Description("Protect chests with region and build permissions.")]
 		public bool RegionProtectChests;
 
+		/// <summary>RegionProtectGemLocks - Whether or not region protection should apply to gem locks.</summary>
+		[Description("Protect gem locks with region and build permissions.")]
+		public bool RegionProtectGemLocks = true;
+
 		/// <summary>DisableLoginBeforeJoin - This will prevent users from being able to login before connecting.</summary>
 		[Description("Disable users from being able to login with account password when joining.")]
 		public bool DisableLoginBeforeJoin;
diff --git a/TShockAPI/GetDataHandlers.cs b/TShockAPI/GetDataHandlers.cs
index 202ea39c..f7448b65 100755
--- a/TShockAPI/GetDataHandlers.cs
+++ b/TShockAPI/GetDataHandlers.cs
@@ -1249,7 +1249,8 @@ namespace TShockAPI
 					{ PacketTypes.DoorUse, HandleDoorUse },
 					{ PacketTypes.CompleteAnglerQuest, HandleCompleteAnglerQuest },
 					{ PacketTypes.NumberOfAnglerQuestsCompleted, HandleNumberOfAnglerQuestsCompleted },
-					{ PacketTypes.MassWireOperation, HandleMassWireOperation }
+					{ PacketTypes.MassWireOperation, HandleMassWireOperation },
+					{ PacketTypes.GemLockToggle, HandleGemLockToggle }
 				};
 		}
 
@@ -3899,5 +3900,83 @@ namespace TShockAPI
 
 			return false;
 		}
+
+		/// <summary>
+		/// For use with a ToggleGemLock event
+		/// </summary>
+		public class GemLockToggleEventArgs : HandledEventArgs 
+		{
+			/// <summary>
+			/// X Location
+			/// </summary>
+			public Int32 X { get; set; }
+			/// <summary>
+			/// Y Location
+			/// </summary>
+			public Int32 Y { get; set; }
+			/// <summary>
+			/// On status
+			/// </summary>
+			public bool On { get; set; }
+		}
+
+		/// <summary>
+		/// GemLockToggle - Called when a gem lock is switched
+		/// </summary>
+		public static HandlerList<GemLockToggleEventArgs> GemLockToggle;
+
+		private static bool OnGemLockToggle(Int32 x, Int32 y, bool on) 
+		{
+			if (GemLockToggle == null)
+				return false;
+
+			var args = new GemLockToggleEventArgs 
+			{
+				X = x,
+				Y = y,
+				On = on
+			};
+			GemLockToggle.Invoke(null, args);
+			return args.Handled;
+		}
+
+		private static bool HandleGemLockToggle(GetDataHandlerArgs args)
+		{
+			var x = (int)args.Data.ReadInt16();
+			var y = (int)args.Data.ReadInt16();
+			var on = args.Data.ReadBoolean();
+
+			if (x < 0 || y < 0 || x >= Main.maxTilesX || y >= Main.maxTilesY) 
+			{
+				return true;
+			}
+
+			if (OnGemLockToggle(x, y, on)) 
+			{
+				return true;
+			}
+
+			if (!TShock.Config.RegionProtectGemLocks)
+			{
+				return false;
+			}
+
+			if (!TShock.Utils.TilePlacementValid(x, y) || (args.Player.Dead && TShock.Config.PreventDeadModification)) 
+			{
+				return true;
+			}
+
+			if (TShock.CheckIgnores(args.Player)) 
+			{
+				return true;
+			}
+
+			if (TShock.CheckTilePermission(args.Player, x, y)) 
+			{
+				return true;
+			}
+
+			return false;
+		}
 	}
 }