/// <summary>
/// Expects operation EnterWorld and creates a new MmoActor with a new Item as avatar and a new MmoClientInterestArea.
/// </summary>
/// <remarks>
/// The MmoActor becomes the new Peer.CurrentOperationHandler.
/// If another MmoActor with the same name exists he is disconnected.
/// An OperationResponse with error code ReturnCode.Ok is published on success.
/// </remarks>
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() };
}
World world;
if (WorldCache.Instance.TryGet(operation.WorldName, out world) == false)
{
return operation.GetOperationResponse((int)ReturnCode.WorldNotFound, "WorldNotFound");
}
var interestArea = new ClientInterestArea(peer, operation.InterestAreaId, world)
{
ViewDistanceEnter = operation.ViewDistanceEnter,
ViewDistanceExit = operation.ViewDistanceExit
};
var actor = new MmoActorOperationHandler(peer, world, interestArea);
var avatar = new Item(operation.Position, operation.Rotation, operation.Properties, actor, operation.Username, (byte)ItemType.Avatar, world);
while (world.ItemCache.AddItem(avatar) == false)
{
Item otherAvatarItem;
if (world.ItemCache.TryGetItem(avatar.Id, out otherAvatarItem))
{
avatar.Dispose();
actor.Dispose();
interestArea.Dispose();
(((Item)otherAvatarItem).Owner).DisconnectByOtherPeer(this.peer, 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
{
BoundingBox = world.Area,
TileDimensions = world.TileDimensions,
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 AddInterestArea: Creates a new InterestArea and optionally attaches it to an existing Item.
/// </summary>
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 ClientInterestArea(this.Peer, operation.InterestAreaId, this.World);
this.AddInterestArea(interestArea);
// attach interestArea to item
if (string.IsNullOrEmpty(operation.ItemId) == false)
{
Item item;
bool actorItem = this.TryGetItem(operation.ItemId, out item);
if (actorItem)
{
// we are already in the item thread, invoke directly
return ItemOperationAddInterestArea(item, operation, interestArea);
}
else
{
if (this.World.ItemCache.TryGetItem(operation.ItemId, out item) == false)
{
return operation.GetOperationResponse((int)ReturnCode.ItemNotFound, "ItemNotFound");
}
else
{
// 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;
}
}
}
else
{
// free floating interestArea
lock (interestArea.SyncRoot)
{
interestArea.Position = operation.Position;
interestArea.ViewDistanceEnter = operation.ViewDistanceEnter;
interestArea.ViewDistanceExit = operation.ViewDistanceExit;
interestArea.UpdateInterestManagement();
}
return operation.GetOperationResponse(MethodReturnValue.Ok);
}
}
/// <summary>
/// Handles operation AddInterestArea: Creates a new InterestArea and optionally attaches it to an existing Item.
/// </summary>
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 ClientInterestArea(this.Peer, operation.InterestAreaId, this.World);
this.AddInterestArea(interestArea);
// attach interestArea to item
if (string.IsNullOrEmpty(operation.ItemId) == false)
{
Item item;
bool actorItem = this.TryGetItem(operation.ItemId, out item);
if (actorItem)
{
// we are already in the item thread, invoke directly
return(ItemOperationAddInterestArea(item, operation, interestArea));
}
else
{
if (this.World.ItemCache.TryGetItem(operation.ItemId, out item) == false)
{
return(operation.GetOperationResponse((int)ReturnCode.ItemNotFound, "ItemNotFound"));
}
else
{
// 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);
}
}
}
else
{
// free floating interestArea
lock (interestArea.SyncRoot)
{
interestArea.Position = operation.Position;
interestArea.ViewDistanceEnter = operation.ViewDistanceEnter;
interestArea.ViewDistanceExit = operation.ViewDistanceExit;
interestArea.UpdateInterestManagement();
}
return(operation.GetOperationResponse(MethodReturnValue.Ok));
}
}
/// <summary>
/// Expects operation EnterWorld and creates a new MmoActor with a new Item as avatar and a new MmoClientInterestArea.
/// </summary>
/// <remarks>
/// The MmoActor becomes the new Peer.CurrentOperationHandler.
/// If another MmoActor with the same name exists he is disconnected.
/// An OperationResponse with error code ReturnCode.Ok is published on success.
/// </remarks>
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()
});
}
World world;
if (WorldCache.Instance.TryGet(operation.WorldName, out world) == false)
{
return(operation.GetOperationResponse((int)ReturnCode.WorldNotFound, "WorldNotFound"));
}
var interestArea = new ClientInterestArea(peer, operation.InterestAreaId, world)
{
ViewDistanceEnter = operation.ViewDistanceEnter,
ViewDistanceExit = operation.ViewDistanceExit
};
var actor = new MmoActorOperationHandler(peer, world, interestArea);
var avatar = new Item(operation.Position, operation.Rotation, operation.Properties, actor, operation.Username, (byte)ItemType.Avatar, world);
while (world.ItemCache.AddItem(avatar) == false)
{
Item otherAvatarItem;
if (world.ItemCache.TryGetItem(avatar.Id, out otherAvatarItem))
{
avatar.Dispose();
actor.Dispose();
interestArea.Dispose();
(((Item)otherAvatarItem).Owner).DisconnectByOtherPeer(this.peer, 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
{
BoundingBox = world.Area,
TileDimensions = world.TileDimensions,
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);
}