/// <summary>
/// Loads the backing store landblock structure<para />
/// This function is thread safe
/// </summary>
/// <param name="blockCellID">Any landblock + cell ID within the landblock</param>
public static Landblock get_landblock(uint blockCellID)
{
// client implementation
/*if (Landblocks == null || Landblocks.Count == 0)
* return null;
*
* if (!LandDefs.inbound_valid_cellid(cellID) || cellID >= 0x100)
* return null;
*
* var local_lcoord = LandDefs.blockid_to_lcoord(LoadedCellID);
* var global_lcoord = LandDefs.gid_to_lcoord(cellID);
*
* var xDiff = ((int)global_lcoord.Value.X + 8 * MidRadius - (int)local_lcoord.Value.X) / 8;
* var yDiff = ((int)global_lcoord.Value.Y + 8 * MidRadius - (int)local_lcoord.Value.Y) / 8;
*
* if (xDiff < 0 || yDiff < 0 || xDiff < MidWidth || yDiff < MidWidth)
* return null;
*
* return Landblocks[yDiff + xDiff * MidWidth];*/
var landblockID = blockCellID | 0xFFFF;
// check if landblock is already cached
if (Landblocks.TryGetValue(landblockID, out var landblock))
{
return(landblock);
}
lock (landblockMutex)
{
// check if landblock is already cached, this time under the lock.
if (Landblocks.TryGetValue(landblockID, out landblock))
{
return(landblock);
}
// if not, load into cache
landblock = new Landblock(DBObj.GetCellLandblock(landblockID));
if (Landblocks.TryAdd(landblockID, landblock))
{
landblock.PostInit();
// ensure landblock manager loaded
var lbid = new LandblockId(landblockID);
if (!LandblockManager.IsLoaded(lbid))
{
// this can happen from encounter spawns sliding down walkable slopes...
//log.Debug($"{landblockID:X8} requested from LScape, but not loaded from LandblockManager, adding");
LandblockManager.GetLandblock(lbid, false, false);
}
}
else
{
Landblocks.TryGetValue(landblockID, out landblock);
}
return(landblock);
}
}
public House GetDungeonHouse()
{
var landblockId = new LandblockId(House.DungeonLandblockID);
var isLoaded = LandblockManager.IsLoaded(landblockId);
if (!isLoaded)
{
return(null);
}
var loaded = LandblockManager.GetLandblock(landblockId, false);
var wos = loaded.GetWorldObjectsForPhysicsHandling();
return(wos.FirstOrDefault(wo => wo.WeenieClassId == House.WeenieClassId) as House);
}
public House GetHouse()
{
if (HouseInstance == null)
{
return(House);
}
var houseGuid = HouseInstance.Value;
var landblock = (ushort)((houseGuid >> 12) & 0xFFFF);
var landblockId = new LandblockId((uint)(landblock << 16 | 0xFFFF));
var isLoaded = LandblockManager.IsLoaded(landblockId);
if (!isLoaded)
{
return(House);
}
var loaded = LandblockManager.GetLandblock(landblockId, false);
return(loaded.GetObject(new ObjectGuid(houseGuid)) as House);
}