public void UpdateViews(List <CellData> cells)
{
HashSet <long> ids = new HashSet <long>();
HashSet <long> idsToRemove = new HashSet <long>();
foreach (var cell in cells)
{
if (cellViews.ContainsKey(cell.id))
{
// Update
CellView view = cellViews[cell.id];
view.BindData(cell);
}
else
{
// Add new
AddView(cell);
}
ids.Add(cell.id);
}
// Prepare list of not existing cells
foreach (var entityId in cellViews.Keys)
{
if (ids.Contains(entityId) == false)
{
idsToRemove.Add(entityId);
}
}
// Remove not existing cells
foreach (var entityId in idsToRemove)
{
EntityView view = cellViews[entityId];
cellViews.Remove(entityId);
Destroy(view.gameObject);
}
}