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ChangeOnMap.cs
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132 lines (116 loc) · 5.31 KB
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using System;
using OXGaming.TibiaAPI.Appearances;
using OXGaming.TibiaAPI.Constants;
using OXGaming.TibiaAPI.Creatures;
using OXGaming.TibiaAPI.Utilities;
namespace OXGaming.TibiaAPI.Network.ServerPackets
{
public class ChangeOnMap : ServerPacket
{
public Creature Creature { get; set; }
public ObjectInstance ObjectInstance { get; set; }
public Position Position { get; set; } = new Position(0xFFFF, 0xFFFF, 7);
public ushort Id { get; set; }
public byte StackPosition { get; set; }
public ChangeOnMap(Client client)
{
Client = client;
PacketType = ServerPacketType.ChangeOnMap;
}
public override void ParseFromNetworkMessage(NetworkMessage message)
{
var x = message.ReadUInt16();
if (x != ushort.MaxValue)
{
Position = message.ReadPosition(x);
if (!Client.WorldMapStorage.IsVisible(Position.X, Position.Y, Position.Z, true))
{
throw new Exception($"[ChangeOnMap.ParseFromNetworkMessage] Co-ordinate {Position} is out of range.");
}
var mapPosition = Client.WorldMapStorage.ToMap(Position);
StackPosition = message.ReadByte();
var existingObject = Client.WorldMapStorage.GetObject(mapPosition.X, mapPosition.Y, mapPosition.Z, StackPosition);
if (existingObject == null)
{
throw new Exception("[ChangeOnMap.ParseFromNetworkMessage] Object not found.");
}
var existingCreature = Client.CreatureStorage.GetCreature(existingObject.Data);
if (existingCreature == null && existingObject.Id == (uint)CreatureInstanceType.Creature)
{
throw new Exception($"[ChangeOnMap.ParseFromNetworkMessage] Creature not found: {existingObject.Data}");
}
Id = message.ReadUInt16();
if (Id == (int)CreatureInstanceType.UnknownCreature ||
Id == (int)CreatureInstanceType.OutdatedCreature ||
Id == (int)CreatureInstanceType.Creature)
{
Creature = message.ReadCreatureInstance(Id, Position);
ObjectInstance = Client.AppearanceStorage.CreateObjectInstance((uint)CreatureInstanceType.Creature, Creature.Id);
}
else
{
ObjectInstance = message.ReadObjectInstance(Id);
}
Client.WorldMapStorage.ChangeObject(mapPosition.X, mapPosition.Y, mapPosition.Z, StackPosition, ObjectInstance);
}
else
{
var creatureId = message.ReadUInt32();
var existingCreature = Client.CreatureStorage.GetCreature(creatureId);
if (existingCreature == null)
{
throw new Exception($"[ChangeOnMap.ParseFromNetworkMessage] Creature not found: {creatureId}");
}
var creaturePosition = existingCreature.Position;
if (!Client.WorldMapStorage.IsVisible(creaturePosition.X, creaturePosition.Y, creaturePosition.Z, true))
{
throw new Exception($"[ChangeOnMap.ParseFromNetworkMessage] Co-ordinate {creaturePosition} is out of range.");
}
Id = message.ReadUInt16();
if (Id == (int)CreatureInstanceType.UnknownCreature ||
Id == (int)CreatureInstanceType.OutdatedCreature ||
Id == (int)CreatureInstanceType.Creature)
{
Creature = message.ReadCreatureInstance(Id);
}
else
{
throw new Exception($"[ChangeOnMap.ParseFromNetworkMessage] Received object of type {Id} when a creature was expected.");
}
}
}
public override void AppendToNetworkMessage(NetworkMessage message)
{
message.Write((byte)ServerPacketType.ChangeOnMap);
if (Position.X != ushort.MaxValue)
{
message.Write(Position);
message.Write(StackPosition);
if (Id == (int)CreatureInstanceType.UnknownCreature ||
Id == (int)CreatureInstanceType.OutdatedCreature ||
Id == (int)CreatureInstanceType.Creature)
{
message.Write(Id);
message.Write(Creature, (CreatureInstanceType)Id);
}
else
{
message.Write(ObjectInstance);
}
}
else
{
if (Id != (int)CreatureInstanceType.UnknownCreature &&
Id != (int)CreatureInstanceType.OutdatedCreature &&
Id != (int)CreatureInstanceType.Creature)
{
throw new Exception($"[ChangeOnMap.AppendToNetworkMessage] {Id} is not a valid CreatureInstanceType.");
}
message.Write(ushort.MaxValue);
message.Write(Creature.Id);
message.Write(Id);
message.Write(Creature, (CreatureInstanceType)Id);
}
}
}
}