public bool TryGetTransientFilter <T>(CombinedFilterID filterID, out EntityFilterCollection entityCollection)
where T : unmanaged, IEntityComponent
{
var combineFilterIDs = Internal_FilterHelper.CombineFilterIDs <T>(filterID);
if (_transientEntityFilters.TryFindIndex(combineFilterIDs, out var index))
{
entityCollection = _transientEntityFilters.GetDirectValueByRef(index);
return(true);
}
entityCollection = default;
return(false);
}
/// <summary>
/// Creates a transient filter. Transient filters are deleted after each submission
/// </summary>
/// <typeparam name="T"></typeparam>
/// <returns></returns>
public ref EntityFilterCollection GetOrCreateTransientFilter <T>(CombinedFilterID filterID)
where T : unmanaged, IEntityComponent
{
var combineFilterIDs = Internal_FilterHelper.CombineFilterIDs <T>(filterID);
if (_transientEntityFilters.TryFindIndex(combineFilterIDs, out var index))
{
return(ref _transientEntityFilters.GetDirectValueByRef(index));
}
var filterCollection = new EntityFilterCollection(filterID);
_transientEntityFilters.Add(combineFilterIDs, filterCollection);
return(ref _transientEntityFilters.GetDirectValueByRef((uint)(_transientEntityFilters.count - 1)));
}
public ref EntityFilterCollection GetOrCreatePersistentFilter <T>(CombinedFilterID filterID)
where T : unmanaged, IEntityComponent
{
long combineFilterIDs = Internal_FilterHelper.CombineFilterIDs <T>(filterID);
if (_persistentEntityFilters.TryFindIndex(combineFilterIDs, out var index) == true)
{
return(ref _persistentEntityFilters.GetDirectValueByRef(index));
}
var typeRef = TypeRefWrapper <T> .wrapper;
var filterCollection = new EntityFilterCollection(filterID);
_persistentEntityFilters.Add(combineFilterIDs, filterCollection);
var lastIndex = _persistentEntityFilters.count - 1;
_indicesOfPersistentFiltersUsedByThisComponent.GetOrAdd(new NativeRefWrapperType(typeRef),
() => new NativeDynamicArrayCast <int>(1, Svelto.Common.Allocator.Persistent)).Add(lastIndex);
return(ref _persistentEntityFilters.GetDirectValueByRef((uint)lastIndex));
}
public bool TryGetPersistentFilter <T>(CombinedFilterID combinedFilterID, out EntityFilterCollection entityCollection)
where T : unmanaged, IBaseEntityComponent
{
long combineFilterIDs = Internal_FilterHelper.CombineFilterIDs <T>(combinedFilterID);
if (_persistentEntityFilters.TryFindIndex(combineFilterIDs, out var index) == true)
{
entityCollection = _persistentEntityFilters.GetDirectValueByRef(index);
return(true);
}
entityCollection = default;
return(false);
}
internal EntityFilterIterator(EntityFilterCollection filter)
{
_filter = filter;
_indexGroup = -1;
_current = default;
}
