/// <summary>
/// Attach the object to the avatar
/// </summary>
/// <param name="remoteClient">The client that is having the attachment done</param>
/// <param name="localID">The localID (SceneObjectPart) that is being attached (for the attach script event)</param>
/// <param name="group">The group (SceneObjectGroup) that is being attached</param>
/// <param name="AttachmentPt">The point to where the attachment will go</param>
/// <param name="item">If this is not null, it saves a query in this method to the InventoryService
/// This is the Item that the object is in (if it is in one yet)</param>
protected void FindAttachmentPoint(IClientAPI remoteClient, uint localID, SceneObjectGroup group,
int AttachmentPt, InventoryItemBase item)
{
//Make sure that we arn't over the limit of attachments
SceneObjectGroup[] attachments = GetAttachmentsForAvatar(remoteClient.AgentId);
if (attachments.Length + 1 > m_maxNumberOfAttachments)
{
//Too many
remoteClient.SendAgentAlertMessage(
"You are wearing too many attachments. Take one off to attach this object", false);
return;
}
Vector3 attachPos = group.GetAttachmentPos();
if(!m_allowMultipleAttachments)
AttachmentPt &= 0x7f; //Disable it!
//Did the attachment change position or attachment point?
bool changedPositionPoint = false;
// If the attachment point isn't the same as the one previously used
// set it's offset position = 0 so that it appears on the attachment point
// and not in a weird location somewhere unknown.
//Simplier terms: the attachment point changed, set it to the default 0,0,0 location
if ((AttachmentPt & 0x7f) != 0 && (AttachmentPt & 0x7f) != (int)group.GetAttachmentPoint())
{
attachPos = Vector3.Zero;
changedPositionPoint = true;
}
else
{
// AttachmentPt 0 means the client chose to 'wear' the attachment.
if ((AttachmentPt & 0x7f) == 0)
{
// Check object for stored attachment point
AttachmentPt = (int)group.GetSavedAttachmentPoint();
attachPos = group.GetAttachmentPos();
}
//Check state afterwards... use the newer GetSavedAttachmentPoint and Pos above first
if ((AttachmentPt & 0x7f) == 0)
{
// Check object for older stored attachment point
AttachmentPt = group.RootPart.Shape.State;
//attachPos = group.AbsolutePosition;
}
// if we still didn't find a suitable attachment point, force it to the default
//This happens on the first time an avatar 'wears' an object
if ((AttachmentPt & 0x7f) == 0)
{
// Stick it on right hand with Zero Offset from the attachment point.
AttachmentPt = (int)AttachmentPoint.RightHand;
//Default location
attachPos = Vector3.Zero;
changedPositionPoint = true;
}
}
group.HasGroupChanged = changedPositionPoint;
//Update where we are put
group.SetAttachmentPoint((byte)AttachmentPt);
//Fix the position with the one we found
group.AbsolutePosition = attachPos;
// Remove any previous attachments
ScenePresence presence = m_scene.GetScenePresence(remoteClient.AgentId);
if (presence == null)
return;
UUID itemID = UUID.Zero;
//Check for multiple attachment bits
//If the numbers are the same, it wants to have the old attachment taken off
if ((AttachmentPt & 0x7f) == AttachmentPt)
{
foreach (SceneObjectGroup grp in attachments)
{
if (grp.GetAttachmentPoint() == (byte)AttachmentPt)
{
itemID = grp.GetFromItemID();
break;
}
}
if (itemID != UUID.Zero)
DetachSingleAttachmentToInventory(itemID, remoteClient);
}
itemID = group.GetFromItemID();
group.RootPart.AttachedAvatar = presence.UUID;
//Anakin Lohner bug #3839
SceneObjectPart[] parts = group.Parts;
for (int i = 0; i < parts.Length; i++)
parts[i].AttachedAvatar = presence.UUID;
if (group.RootPart.PhysActor != null)
{
m_scene.SceneGraph.PhysicsScene.RemovePrim(group.RootPart.PhysActor);
group.RootPart.PhysActor = null;
}
group.AbsolutePosition = attachPos;
group.RootPart.AttachedPos = attachPos;
group.RootPart.IsAttachment = true;
group.RootPart.SetParentLocalId(presence.LocalId);
group.SetAttachmentPoint(Convert.ToByte(AttachmentPt));
AvatarAttachments attPlugin = presence.RequestModuleInterface<AvatarAttachments>();
if (attPlugin != null)
attPlugin.AddAttachment(group);
// Killing it here will cause the client to deselect it
// It then reappears on the avatar, deselected
// through the full update below
//
if (group.IsSelected)
{
foreach (SceneObjectPart part in group.ChildrenList)
{
part.CreateSelected = true;
}
}
//Kill the previous entity so that it will be selected
SendKillEntity(group.RootPart);
//NOTE: This MUST be here, otherwise we limit full updates during attachments when they are selected and it will block the first update.
// So until that is changed, this MUST stay. The client will instantly reselect it, so this value doesn't stay borked for long.
group.IsSelected = false;
if (itemID == UUID.Zero)
{
//Delete the object inworld to inventory
List<SceneObjectGroup> groups = new List<SceneObjectGroup>(1) { group };
IInventoryAccessModule inventoryAccess = m_scene.RequestModuleInterface<IInventoryAccessModule>();
if (inventoryAccess != null)
inventoryAccess.DeleteToInventory(DeRezAction.AcquireToUserInventory, UUID.Zero,
groups, remoteClient.AgentId, out itemID);
}
else
{
//it came from an item, we need to start the scripts
// Fire after attach, so we don't get messy perms dialogs
// 4 == AttachedRez
group.CreateScriptInstances(0, true, 4, UUID.Zero);
group.ResumeScripts();
}
if (UUID.Zero == itemID)
{
m_log.Error("[ATTACHMENTS MODULE]: Unable to save attachment. Error inventory item ID.");
remoteClient.SendAgentAlertMessage(
"Unable to save attachment. Error inventory item ID.", false);
return;
}
// XXYY!!
if (item == null)
{
item = new InventoryItemBase(itemID, remoteClient.AgentId);
item = m_scene.InventoryService.GetItem(item);
}
//Update the ItemID with the new item
group.SetFromItemID(item.ID);
//If we updated the attachment, we need to save the change
if (presence.Appearance.SetAttachment((int)AttachmentPt, itemID, item.AssetID))
AvatarFactory.QueueAppearanceSave(remoteClient.AgentId);
//Now recreate it so that it is selected
group.ScheduleGroupUpdate(PrimUpdateFlags.FullUpdate);
// In case it is later dropped again, don't let
// it get cleaned up
group.RootPart.RemFlag(PrimFlags.TemporaryOnRez);
group.HasGroupChanged = false;
m_scene.EventManager.TriggerOnAttach(localID, group.GetFromItemID(), remoteClient.AgentId);
}