/// <summary>
/// Deletes a chunk from the underlying data store at the given local coordinates relative to this region.
/// </summary>
/// <param name="lcx">The local X-coordinate of a chunk relative to this region.</param>
/// <param name="lcz">The local Z-coordinate of a chunk relative to this region.</param>
/// <returns>True if there is a chunk was deleted; false otherwise.</returns>
/// <remarks>If the local coordinates are out of bounds for this region, the action will be forwarded to the correct region
/// transparently.</remarks>
public bool DeleteChunk(int lcx, int lcz)
{
if (!LocalBoundsCheck(lcx, lcz))
{
IRegion alt = GetForeignRegion(lcx, lcz);
return((alt == null) ? false : alt.DeleteChunk(ForeignX(lcx), ForeignZ(lcz)));
}
RegionFile rf = GetRegionFile();
if (!rf.HasChunk(lcx, lcz))
{
return(false);
}
rf.DeleteChunk(lcx, lcz);
ChunkKey k = new ChunkKey(ChunkGlobalX(lcx), ChunkGlobalZ(lcz));
_cache.Remove(k);
if (ChunkCount() == 0)
{
_regionMan.DeleteRegion(X, Z);
_regionFile.Target = null;
}
return(true);
}
/// <summary>
/// Checks if a chunk exists at the given local coordinates relative to this region.
/// </summary>
/// <param name="lcx">The local X-coordinate of a chunk relative to this region.</param>
/// <param name="lcz">The local Z-coordinate of a chunk relative to this region.</param>
/// <returns>True if there is a chunk at the given coordinates; false otherwise.</returns>
/// <remarks>If the local coordinates are out of bounds for this region, the action will be forwarded to the correct region
/// transparently.</remarks>
public bool ChunkExists(int lcx, int lcz)
{
if (!LocalBoundsCheck(lcx, lcz))
{
IRegion alt = GetForeignRegion(lcx, lcz);
return((alt == null) ? false : alt.ChunkExists(ForeignX(lcx), ForeignZ(lcz)));
}
RegionFile rf = GetRegionFile();
return(rf.HasChunk(lcx, lcz));
}
/// <inherits />
public int ChunkCount()
{
RegionFile rf = GetRegionFile();
int count = 0;
for (int x = 0; x < XDIM; x++)
{
for (int z = 0; z < ZDIM; z++)
{
if (rf.HasChunk(x, z))
{
count++;
}
}
}
return(count);
}
internal static void LoadRegion(TreeNode node, string path)
{
RegionFile rf = new RegionFile(path);
for (int x = 0; x < 32; x++)
{
for (int y = 0; y < 32; y++)
{
if (rf.HasChunk(x, y))
{
TreeNode child = CreateLazyChunk(rf, x, y);
node.Nodes.Add(child);
LinkDataNodeParent(child, node);
}
}
}
}