private void PacketEntities(byte[] packetBuffer)
{
PacketEntities packetEntitys = new PacketEntities(packetBuffer);
BitStream bitStream = new BitStream(packetEntitys.EntityData);
int entityIndex = -1;
EntityHeaderFlags entityHeaderFlags = EntityHeaderFlags.FHDR_ZERO;
EntityUpdateType entityUpdateType = EntityUpdateType.PreserveEnt;
bool isDelta = packetEntitys.IsDelta;
int lastEntityIndex = -1;
int updatedEntries = packetEntitys.UpdatedEntries;
while (entityUpdateType < EntityUpdateType.Finished)
{
updatedEntries--;
bool isEntity = (updatedEntries >= 0) ? true : false;
if (isEntity)
{
entityHeaderFlags = EntityHeaderFlags.FHDR_ZERO;
entityIndex = (int)(bitStream.ReadUBitInt() + lastEntityIndex + 1);
lastEntityIndex = entityIndex;
if (!bitStream.ReadBit())
{
if (bitStream.ReadBit())
{
entityHeaderFlags |= EntityHeaderFlags.FHDR_ENTERPVS;
}
}
else
{
entityHeaderFlags |= EntityHeaderFlags.FHDR_LEAVEPVS;
if (bitStream.ReadBit())
{
entityHeaderFlags |= EntityHeaderFlags.FHDR_DELETE;
}
}
}
for (entityUpdateType = EntityUpdateType.PreserveEnt; entityUpdateType == EntityUpdateType.PreserveEnt;)
{
if (!isEntity || entityIndex > HL2SDK.ENTITY_SENTINEL)
{
entityUpdateType = EntityUpdateType.Finished;
}
else
{
if (entityHeaderFlags.HasFlag(EntityHeaderFlags.FHDR_ENTERPVS))
{
entityUpdateType = EntityUpdateType.EnterPVS;
}
else if (entityHeaderFlags.HasFlag(EntityHeaderFlags.FHDR_LEAVEPVS))
{
entityUpdateType = EntityUpdateType.LeavePVS;
}
else
{
entityUpdateType = EntityUpdateType.DeltaEnt;
}
}
switch (entityUpdateType)
{
case EntityUpdateType.DeltaEnt:
{
Entity entity = m_Demo.Entities.GetEntity(entityIndex);
if (entity != null)
{
entity.Update(bitStream, true);
}
else
{
Console.WriteLine("EntityUpdateType.DeltaEnt: entity == null");
throw new Exception("EntityUpdateType.DeltaEnt: entity == null");
}
break;
}
case EntityUpdateType.EnterPVS:
{
uint serverClassID = bitStream.ReadBits((int)Math.Ceiling(Math.Log(m_Demo.ServerClasses.Count, 2)));
uint seiral = bitStream.ReadBits(10);
ServerClass serverClass = m_Demo.ServerClasses.GetServerClass((int)serverClassID);
Entity entity = new Entity(m_Demo, entityIndex, seiral, serverClass);
entity.Update(bitStream, false);
m_Demo.Entities.Add(entity);
break;
}
case EntityUpdateType.LeavePVS:
{
if (!isDelta)
{
Console.WriteLine("WARNING: EntityUpdateType.LeavePVS on Full Update");
entityUpdateType = EntityUpdateType.Failed;
throw new Exception("WARNING: EntityUpdateType.LeavePVS on Full Update");
}
else
{
m_Demo.Entities.Remove(entityIndex);
}
break;
}
case EntityUpdateType.PreserveEnt:
{
if (!isDelta)
{
Console.WriteLine("WARNING: EntityUpdateType.PreserveEnt on Full Update");
entityUpdateType = EntityUpdateType.Failed;
throw new Exception("WARNING: EntityUpdateType.PreserveEnt on Full Update");
}
else
{
if (entityIndex >= HL2SDK.MAX_EDICTS)
{
Console.WriteLine("EntityUpdateType.PreserveEnt: entityIndex == MAX_EDICTS");
throw new Exception("EntityUpdateType.PreserveEnt: entityIndex == MAX_EDICTS");
}
else
{
}
}
break;
}
}
}
}
}
