Move netmodule handling into handlers namespace

Add handler for teleport pylons, and permission for teleport pylons

TShockAPI/Handlers/NetModules/CreativeUnlocksHandler.cs

@@ -0,0 +1,75 @@
+using System.IO;
+using System.IO.Streams;
+using Terraria.GameContent.NetModules;
+using Terraria.Net;
+
+namespace TShockAPI.Handlers.NetModules
+{
+	/// <summary>
+	/// Handles creative unlock requests
+	/// </summary>
+	public class CreativeUnlocksHandler : INetModuleHandler
+	{
+		/// <summary>
+		/// An unknown field. If this does not have a value of '0' the packet should be rejected.
+		/// </summary>
+		public byte UnknownField { get; set; }
+		/// <summary>
+		/// ID of the item being sacrificed
+		/// </summary>
+		public ushort ItemId { get; set; }
+		/// <summary>
+		/// Stack size of the item being sacrificed
+		/// </summary>
+		public ushort Amount { get; set; }
+
+		/// <summary>
+		/// Reads the unlock data from the stream
+		/// </summary>
+		/// <param name="data"></param>
+		public void Deserialize(MemoryStream data)
+		{
+			UnknownField = data.ReadInt8();
+			if (UnknownField == 0)
+			{
+				ItemId = data.ReadUInt16();
+				Amount = data.ReadUInt16();
+			}
+		}
+
+		/// <summary>
+		/// Determines if the unlock is valid and the player has permission to perform the unlock.
+		/// Syncs unlock status if the packet is accepted
+		/// </summary>
+		/// <param name="player"></param>
+		/// <param name="rejectPacket"></param>
+		public void HandlePacket(TSPlayer player, out bool rejectPacket)
+		{
+			if (UnknownField != 0)
+			{
+				TShock.Log.ConsoleDebug(
+					"CreativeUnlocksNetModuleHandler received non-vanilla unlock request. Random field value: {0} from {1}",
+					UnknownField,
+					player.Name
+				);
+
+				rejectPacket = true;
+				return;
+			}
+
+			if (!player.HasPermission(Permissions.journey_contributeresearch))
+			{
+				player.SendErrorMessage("You do not have permission to contribute research.");
+				rejectPacket = true;
+				return;
+			}
+
+			var totalSacrificed = TShock.ResearchDatastore.SacrificeItem(ItemId, Amount, player);
+
+			var response = NetCreativeUnlocksModule.SerializeItemSacrifice(ItemId, totalSacrificed);
+			NetManager.Instance.Broadcast(response);
+
+			rejectPacket = false;
+		}
+	}
+}