private bool EvaluateEntity(
RailEntityBase entity,
int ticksSinceSend,
int ticksSinceAck,
out float priority)
{
return(Evaluator.Evaluate(entity, ticksSinceSend, ticksSinceAck, out priority));
}
public virtual bool Evaluate(
RailEntityBase entity,
int ticksSinceSend,
int ticksSinceAck,
out float priority)
{
priority = 0.0f;
return(true);
}
/// <summary>
/// Marks an entity for removal from the room and presumably destruction.
/// This is deferred until the next frame.
/// </summary>
public void MarkForRemoval(RailEntityBase entity)
{
if (entity.IsRemoving == false)
{
RailEntityServer serverEntity = entity as RailEntityServer;
if (serverEntity == null)
{
throw new ArgumentNullException(
nameof(entity),
$"unexpected type of entity to remove: {entity}");
}
serverEntity.MarkForRemoval();
server.LogRemovedEntity(serverEntity);
}
}
private bool GetPriority(RailEntityBase entity, Tick current, out float priority)
{
RailViewEntry lastSent = this.lastSent.GetLatest(entity.Id);
RailViewEntry lastAcked = ackedByClient.GetLatest(entity.Id);
int ticksSinceSend = int.MaxValue;
int ticksSinceAck = int.MaxValue;
if (lastSent.IsValid)
{
ticksSinceSend = current - lastSent.LastReceivedTick;
}
if (lastAcked.IsValid)
{
ticksSinceAck = current - lastAcked.LastReceivedTick;
}
return(EvaluateEntity(entity, ticksSinceSend, ticksSinceAck, out priority));
}
private void ClientServerCommunication()
{
// Initialization
CampaignTimeControlMode expectedTimeControl = CampaignTimeControlMode.StoppablePlay;
RailClientRoom clientRoom = m_Client.StartRoom();
RailServerRoom serverRoom = m_Server.StartRoom();
RailEntityServer <SomeState> entityServerSide =
serverRoom.AddNewEntity <RailEntityServer <SomeState> >();
entityServerSide.State.Mode = expectedTimeControl;
m_Server.AddClient(m_PeerServerSide.Object, "");
m_Client.SetPeer(m_PeerClientSide.Object);
Assert.Empty(clientRoom.Entities);
Assert.Single(serverRoom.Entities);
// Sync entity from server to client
for (int i = 0; i < RailConfig.SERVER_SEND_RATE + RailConfig.CLIENT_SEND_RATE + 1; ++i)
{
m_ConClientSide.ExecuteSends();
m_Server.Update();
m_ConServerSide.ExecuteSends();
m_Client.Update();
}
// The client has received the entity.
Assert.Single(clientRoom.Entities);
Assert.Single(serverRoom.Entities);
// Clients representation of the entity is identical to the server
RailEntityBase entityProxy = clientRoom.Entities.First();
Assert.IsType <RailEntityClient <SomeState> >(entityProxy);
RailEntityClient <SomeState> entityClientSide =
entityProxy as RailEntityClient <SomeState>;
Assert.NotNull(entityClientSide);
Assert.Equal(entityServerSide.Id, entityProxy.Id);
Assert.Equal(expectedTimeControl, entityServerSide.State.Mode);
Assert.Equal(expectedTimeControl, entityClientSide.State.Mode);
// Change the entity on server side and sync to the client
expectedTimeControl = CampaignTimeControlMode.Stop;
entityServerSide.State.Mode = expectedTimeControl;
// Let the server detect the change and send the packet
bool bWasSendTick = false;
while (!bWasSendTick)
{
m_Server.Update();
bWasSendTick = serverRoom.Tick.IsSendTick(RailConfig.SERVER_SEND_RATE);
}
// Let the client receive & process the packet. We need to bring the client up to the same tick as the server to see the result.
while (clientRoom.Tick < serverRoom.Tick)
{
m_ConServerSide.ExecuteSends();
m_Client.Update();
}
Assert.Equal(expectedTimeControl, entityServerSide.State.Mode);
Assert.Equal(expectedTimeControl, entityClientSide.State.Mode);
}
private void EntitiesAreSynchronized()
{
// Initialization
RailClientRoom clientRoom = client.StartRoom();
RailServerRoom serverRoom = server.StartRoom();
EntityServer entityServerSide = serverRoom.AddNewEntity <EntityServer>();
server.AddClient(peerServerSide.Object, "");
client.SetPeer(peerClientSide.Object);
// Nothing has been sent or received yet
peerClientSide.Verify(
c => c.SendPayload(It.IsAny <ArraySegment <byte> >()),
Times.Never());
peerServerSide.Verify(
c => c.SendPayload(It.IsAny <ArraySegment <byte> >()),
Times.Never());
Assert.Empty(clientRoom.Entities);
Assert.Single(serverRoom.Entities);
// Let the server send its update to the client
for (int i = 0; i < RailConfig.SERVER_SEND_RATE + RailConfig.CLIENT_SEND_RATE + 1; ++i)
{
peerServerSide.Object.PollEvents();
server.Update();
peerClientSide.Object.PollEvents();
client.Update();
}
// The client has received the server entity.
Assert.Single(clientRoom.Entities);
Assert.Single(serverRoom.Entities);
// Clients representation of the entity is identical to the server
RailEntityBase entityProxy = clientRoom.Entities.First();
Assert.IsType <EntityClient>(entityProxy);
EntityClient entityClientSide = entityProxy as EntityClient;
Assert.NotNull(entityClientSide);
Assert.Equal(entityServerSide.Id, entityProxy.Id);
Assert.Equal(entityClientSide.State.PosX, entityServerSide.State.PosX);
Assert.Equal(entityClientSide.State.PosY, entityServerSide.State.PosY);
// Change the entity on the server side and sync it to the client
float fExpectedPosX = 42;
float fExpectedPosY = 106;
entityServerSide.State.PosX = fExpectedPosX;
entityServerSide.State.PosY = fExpectedPosY;
// Let the server detect the change and send the packet
server.Update();
bool bWasSendTick = serverRoom.Tick.IsSendTick(RailConfig.SERVER_SEND_RATE);
while (!bWasSendTick)
{
server.Update();
bWasSendTick = serverRoom.Tick.IsSendTick(RailConfig.SERVER_SEND_RATE);
}
// Let the client receive & process the packet. We need to bring the client up to the same tick as the server to see the result.
while (clientRoom.Tick < serverRoom.Tick)
{
peerClientSide.Object.PollEvents();
client.Update();
}
Assert.Equal(fExpectedPosX, entityClientSide.State.PosX);
Assert.Equal(fExpectedPosY, entityClientSide.State.PosY);
Assert.Equal(fExpectedPosX, entityServerSide.State.PosX);
Assert.Equal(fExpectedPosY, entityServerSide.State.PosY);
}
public RailEntityBase ProduceEntity(RailResource resource)
{
return(RailEntityBase.Create(resource, state.FactoryType));
}
public Argument([NotNull] RailEntityBase entity) : this(entity.Id)
{
}
