if ( Platform.isClient() )
return;
try
{
WorldCoord min = loc.copy();
WorldCoord max = loc.copy();
// find size of MB structure...
while (isValidTileAt( world, min.x - 1, min.y, min.z ))
min.x--;
while (isValidTileAt( world, min.x, min.y - 1, min.z ))