/// <summary>
/// Expects operation <see cref = "EnterWorld" /> and creates a new <see cref = "MmoActor" /> with a new <see cref = "MmoItem" /> as avatar and a new <see cref = "MmoClientInterestArea" />.
/// The <see cref = "MmoActor" /> becomes the new <see cref = "Peer.CurrentOperationHandler">operation handler</see>.
/// If another <see cref = "MmoActor" /> with the same name exists he is disconnected.
/// An <see cref = "OperationResponse" /> with error code <see cref = "ReturnCode.Ok" /> is published on success.
/// </summary>
/// <param name = "peer">
/// The client peer.
/// </param>
/// <param name = "request">
/// The request.
/// </param>
/// <param name = "sendParameters">
/// The send Parameters.
/// </param>
/// <returns>
/// Null or an <see cref = "OperationResponse" /> with error code <see cref = "ReturnCode.WorldNotFound" />.
/// </returns>
public OperationResponse OperationEnterWorld(PeerBase peer, OperationRequest request, SendParameters sendParameters)
{
var operation = new EnterWorld(peer.Protocol, request);
if (!operation.IsValid)
{
return(new OperationResponse(request.OperationCode)
{
ReturnCode = (int)ReturnCode.InvalidOperationParameter, DebugMessage = operation.GetErrorMessage()
});
}
MmoWorld world;
if (MmoWorldCache.Instance.TryGet(operation.WorldName, out world) == false)
{
return(operation.GetOperationResponse((int)ReturnCode.WorldNotFound, "WorldNotFound"));
}
var interestArea = new MmoClientInterestArea(peer, operation.InterestAreaId, world)
{
ViewDistanceEnter = operation.ViewDistanceEnter.ToVector(), ViewDistanceExit = operation.ViewDistanceExit.ToVector()
};
var actor = new MmoActor(peer, world, interestArea);
var avatar = new MmoItem(world, operation.Position, operation.Rotation, operation.Properties, actor, operation.Username, (byte)ItemType.Avatar);
while (world.ItemCache.AddItem(avatar) == false)
{
Item otherAvatarItem;
if (world.ItemCache.TryGetItem(avatar.Type, avatar.Id, out otherAvatarItem))
{
avatar.Dispose();
actor.Dispose();
interestArea.Dispose();
((Peer)((MmoItem)otherAvatarItem).Owner.Peer).DisconnectByOtherPeer(this, request, sendParameters);
// request continued later, no response here
return(null);
}
}
// init avatar
actor.AddItem(avatar);
actor.Avatar = avatar;
((Peer)peer).SetCurrentOperationHandler(actor);
// set return values
var responseObject = new EnterWorldResponse
{
BottomRightCorner = world.Area.Max.ToFloatArray(2),
TopLeftCorner = world.Area.Min.ToFloatArray(2),
TileDimensions = world.TileDimensions.ToFloatArray(2),
WorldName = world.Name
};
// send response; use item channel to ensure that this event arrives before any move or subscribe events
var response = new OperationResponse(request.OperationCode, responseObject);
sendParameters.ChannelId = Settings.ItemEventChannel;
peer.SendOperationResponse(response, sendParameters);
lock (interestArea.SyncRoot)
{
interestArea.AttachToItem(avatar);
interestArea.UpdateInterestManagement();
}
avatar.Spawn(operation.Position);
world.Radar.AddItem(avatar, operation.Position);
// response already sent
return(null);
}
/// <summary>
/// Expects operation <see cref = "EnterWorld" /> and creates a new <see cref = "MmoActor" /> with a new <see cref = "MmoItem" /> as avatar and a new <see cref = "MmoClientInterestArea" />.
/// The <see cref = "MmoActor" /> becomes the new <see cref = "Peer.CurrentOperationHandler">operation handler</see>.
/// If another <see cref = "MmoActor" /> with the same name exists he is disconnected.
/// An <see cref = "OperationResponse" /> with error code <see cref = "ReturnCode.Ok" /> is published on success.
/// </summary>
/// <param name = "peer">
/// The client peer.
/// </param>
/// <param name = "request">
/// The request.
/// </param>
/// <param name = "sendParameters">
/// The send Parameters.
/// </param>
/// <returns>
/// Null or an <see cref = "OperationResponse" /> with error code <see cref = "ReturnCode.WorldNotFound" />.
/// </returns>
public OperationResponse OperationEnterWorld(PeerBase peer, OperationRequest request, SendParameters sendParameters)
{
var operation = new EnterWorld(peer.Protocol, request);
if (!operation.IsValid)
{
return new OperationResponse(request.OperationCode) { ReturnCode = (int)ReturnCode.InvalidOperationParameter, DebugMessage = operation.GetErrorMessage() };
}
MmoWorld world;
if (MmoWorldCache.Instance.TryGet(operation.WorldName, out world) == false)
{
return operation.GetOperationResponse((int)ReturnCode.WorldNotFound, "WorldNotFound");
}
var interestArea = new MmoClientInterestArea(peer, operation.InterestAreaId, world)
{
ViewDistanceEnter = operation.ViewDistanceEnter.ToVector(), ViewDistanceExit = operation.ViewDistanceExit.ToVector()
};
var actor = new MmoActor(peer, world, interestArea);
var avatar = new MmoItem(world, operation.Position, operation.Rotation, operation.Properties, actor, operation.Username, (byte)ItemType.Avatar);
while (world.ItemCache.AddItem(avatar) == false)
{
Item otherAvatarItem;
if (world.ItemCache.TryGetItem(avatar.Type, avatar.Id, out otherAvatarItem))
{
avatar.Dispose();
actor.Dispose();
interestArea.Dispose();
((Peer)((MmoItem)otherAvatarItem).Owner.Peer).DisconnectByOtherPeer(this, request, sendParameters);
// request continued later, no response here
return null;
}
}
// init avatar
actor.AddItem(avatar);
actor.Avatar = avatar;
((Peer)peer).SetCurrentOperationHandler(actor);
// set return values
var responseObject = new EnterWorldResponse
{
BottomRightCorner = world.Area.Max.ToFloatArray(2),
TopLeftCorner = world.Area.Min.ToFloatArray(2),
TileDimensions = world.TileDimensions.ToFloatArray(2),
WorldName = world.Name
};
// send response; use item channel to ensure that this event arrives before any move or subscribe events
var response = new OperationResponse(request.OperationCode, responseObject);
sendParameters.ChannelId = Settings.ItemEventChannel;
peer.SendOperationResponse(response, sendParameters);
lock (interestArea.SyncRoot)
{
interestArea.AttachToItem(avatar);
interestArea.UpdateInterestManagement();
}
avatar.Spawn(operation.Position);
world.Radar.AddItem(avatar, operation.Position);
// response already sent
return null;
}
/// <summary>
/// Handles operation <see cref = "AddInterestArea" />: Creates a new <see cref = "InterestArea" /> and optionally attaches it to an existing <see cref = "Item" />.
/// </summary>
/// <param name = "peer">
/// The client peer.
/// </param>
/// <param name = "request">
/// The request.
/// </param>
/// <param name = "sendParameters">
/// The send Parameters.
/// </param>
/// <returns>
/// An <see cref = "OperationResponse" /> with error code <see cref = "ReturnCode.Ok" /> or <see cref = "ReturnCode.InterestAreaAlreadyExists" />.
/// If the <see cref = "InterestArea" /> is supposed to be attached to an <see cref = "Item" /> error code <see cref = "ReturnCode.ItemNotFound" /> could be returned.
/// </returns>
/// <remarks>
/// The <see cref = "InterestArea" /> is created even if error code <see cref = "ReturnCode.ItemNotFound" /> is returned.
/// </remarks>
public OperationResponse OperationAddInterestArea(PeerBase peer, OperationRequest request, SendParameters sendParameters)
{
var operation = new AddInterestArea(peer.Protocol, request);
if (!operation.IsValid)
{
return new OperationResponse(request.OperationCode) { ReturnCode = (int)ReturnCode.InvalidOperationParameter, DebugMessage = operation.GetErrorMessage() };
}
operation.OnStart();
InterestArea interestArea;
if (this.TryGetInterestArea(operation.InterestAreaId, out interestArea))
{
return operation.GetOperationResponse((int)ReturnCode.InterestAreaAlreadyExists, "InterestAreaAlreadyExists");
}
interestArea = new MmoClientInterestArea(this.Peer, operation.InterestAreaId, this.World);
this.AddInterestArea(interestArea);
// attach interestArea to item
Item item;
if (operation.ItemType.HasValue && string.IsNullOrEmpty(operation.ItemId) == false)
{
IWorld world = this.World;
bool actorItem = this.TryGetItem(operation.ItemType.Value, operation.ItemId, out item);
if (actorItem == false)
{
if (world.ItemCache.TryGetItem(operation.ItemType.Value, operation.ItemId, out item) == false)
{
return operation.GetOperationResponse((int)ReturnCode.ItemNotFound, "ItemNotFound");
}
}
if (actorItem)
{
// we are already in the item thread, invoke directly
return ItemOperationAddInterestArea(item, operation, interestArea);
}
// second parameter (peer) allows us to send an error event to the client (in case of an error)
item.Fiber.Enqueue(() => this.ExecItemOperation(() => ItemOperationAddInterestArea(item, operation, interestArea), sendParameters));
// send response later
return null;
}
// free floating interestArea
if (operation.Position != null)
{
lock (interestArea.SyncRoot)
{
interestArea.Position = operation.Position.ToVector();
interestArea.ViewDistanceEnter = operation.ViewDistanceEnter.ToVector();
interestArea.ViewDistanceExit = operation.ViewDistanceExit.ToVector();
interestArea.UpdateInterestManagement();
}
}
return operation.GetOperationResponse(MethodReturnValue.Ok);
}