Added Drop Packet Handler

srcs/Moonlight/Handlers/Maps/DropPacketHandler.cs

@@ -0,0 +1,62 @@
+using Moonlight.Clients;
+using Moonlight.Core;
+using Moonlight.Core.Enums;
+using Moonlight.Core.Logging;
+using Moonlight.Event;
+using Moonlight.Event.Maps;
+using Moonlight.Game.Entities;
+using Moonlight.Game.Factory;
+using Moonlight.Game.Inventories.Items;
+using Moonlight.Game.Maps;
+using Moonlight.Packet.Map;
+using System;
+
+namespace Moonlight.Handlers.Maps
+{
+    internal class DropPacketHandler : PacketHandler<DropPacket>
+    {
+        private readonly IEntityFactory _entityFactory;
+        private readonly IEventManager _eventManager;
+        private readonly ILogger _logger;
+
+        public DropPacketHandler(ILogger logger, IEntityFactory entityFactory, IEventManager eventManager)
+        {
+            _logger = logger;
+            _entityFactory = entityFactory;
+            _eventManager = eventManager;
+        }
+        protected override void Handle(Client client, DropPacket packet)
+        {
+            Map map = client.Character.Map;
+
+            if (map == null)
+            {
+                _logger.Warn("Handling InPacket but character map is null");
+                return;
+            }
+
+            if(map.Contains(EntityType.GROUND_ITEM, packet.VNum))
+            {
+                _logger.Warn($"Entity {EntityType.GROUND_ITEM} {packet.VNum} already on map");
+                return;
+            }
+
+            Entity entity = _entityFactory.CreateGroundItem(packet.DropId, packet.VNum, packet.Amount);
+            entity.Position = new Position(packet.PositionX, packet.PositionY);
+
+            if (entity is GroundItem drop)
+            {
+                drop.Owner = map.GetEntity<Player>(packet.OwnerId);
+            }
+
+            map.AddEntity(entity);
+            _logger.Info($"Entity {entity.EntityType} {entity.Id} joined map");
+
+            _eventManager.Emit(new EntityJoinEvent(client)
+            {
+                Map = map,
+                Entity = entity
+            });
+        }
+    }
+}