private void UpdateRegion()
{
var region = PoE.GetRegionByWorldCoordinate(X, Y) ?? throw new ArgumentNullException(nameof(PoE.GetRegionByWorldCoordinate));
if (Region == region)
{
return;
}
Region?.RemoveEntity(Parent.GetTransform());
Region = region;
Region.AddEntity(this);
}
public static void Add(Entity entity)
{
if (_entityRegionLookup.ContainsKey(entity))
{
Poll(entity);
return;
}
Region region = RegionManager.GetRegion(entity.CellPosition);
if (region == null)
{
throw new System.NullReferenceException("Cannot find region for entity");
}
entity.SetRegion(region);
region.AddEntity(entity);
_entityRegionLookup.Add(entity, region);
}