Added things for testing mapobjs.

FFXIVClassic Map Server/packets/send/Actor/PlayBGAnimation.cs

@@ -0,0 +1,31 @@
+using FFXIVClassic.Common;
+using System;
+using System.IO;
+
+using FFXIVClassic.Common;
+using System.Text;
+
+namespace  FFXIVClassic_Map_Server.packets.send.actor
+{
+    class PlayBGAnimation
+    {
+        public const ushort OPCODE = 0x00D9;
+        public const uint PACKET_SIZE = 0x28;
+
+        public static SubPacket BuildPacket(uint playerActorID, uint targetActorID, string animName)
+        {
+            byte[] data = new byte[PACKET_SIZE - 0x20];
+          
+            using (MemoryStream mem = new MemoryStream(data))
+            {
+                using (BinaryWriter binWriter = new BinaryWriter(mem))
+                {
+                    binWriter.Write(Encoding.ASCII.GetBytes(animName), 0, Encoding.ASCII.GetByteCount(animName) > 0x8 ? 0x8 : Encoding.ASCII.GetByteCount(animName));
+                }
+            }
+
+            return new SubPacket(OPCODE, playerActorID, targetActorID, data);            
+        }
+
+    }
+}