Trying to merge the Asset/Inventory sub-systems into the main libsecondlife project to solve some issues I was having with MSVS

git-svn-id: http://libopenmetaverse.googlecode.com/svn/trunk@156 52acb1d6-8a22-11de-b505-999d5b087335

libsecondlife-cs/InventorySystem/PacketHelpers/RequestInventoryAsset.cs

@@ -0,0 +1,63 @@
+using System;
+using libsecondlife;
+
+namespace libsecondlife.InventorySystem.PacketHelpers
+{
+	/// <summary>
+	/// Summary description for PacketHelpers.
+	/// </summary>
+	public class RequestInventoryAsset
+	{
+		public RequestInventoryAsset()
+		{
+		}
+
+		/*
+		Low 00337 - RequestInventoryAsset - Trusted - Zerocoded
+			1266 QueryData (01)
+				0219 AgentID (LLUUID / 1)
+				0640 QueryID (LLUUID / 1)
+				0719 OwnerID (LLUUID / 1)
+				0968 ItemID (LLUUID / 1)
+		Low 00338 - InventoryAssetResponse - Trusted - Zerocoded
+			1266 QueryData (01)
+				0640 QueryID (LLUUID / 1)
+				0680 AssetID (LLUUID / 1)
+				1058 IsReadable (BOOL / 1)
+		*/
+		public static Packet BuildPacket(ProtocolManager protocol
+			, LLUUID agentID, LLUUID queryUD, LLUUID ownerID, LLUUID itemID )
+		{
+			int packetLength = 8; // header
+			packetLength += 16; // AgentID (UUID)
+			packetLength += 16; // QueryID (UUID)
+			packetLength += 16; // OwnerID (UUID)
+			packetLength += 16; // ItemID (UUID)
+
+			Packet packet = new Packet("RequestInventoryAsset", protocol, packetLength );
+
+			int pos = 8; // Leave room for header
+
+			// AgentID
+			Array.Copy(agentID.Data, 0, packet.Data, pos, 16);
+			pos += 16;
+
+			// QueryID
+			Array.Copy(queryUD.Data, 0, packet.Data, pos, 16);
+			pos += 16;
+
+			// OwnerID
+			Array.Copy(ownerID.Data, 0, packet.Data, pos, 16);
+			pos += 16;
+
+			// ItemID
+			Array.Copy(itemID.Data, 0, packet.Data, pos, 16);
+			pos += 16;
+
+			// Set the packet flags
+			packet.Data[0] = Helpers.MSG_ZEROCODED + Helpers.MSG_RELIABLE;
+
+			return packet;
+		}
+	}
+}