ToxicMushroom/Penumbra
1
0
Fork 0
mirror of https://github.com/xivdev/Penumbra.git synced 2025-12-18 06:34:19 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions 2

Even almoster...

Browse source
This commit is contained in:
Ottermandias 2022-04-20 11:03:19 +02:00
parent 65bd1d1b52
commit 8dd681bdda
19 changed files with 2625 additions and 1865 deletions
Download patch file Download diff file Expand all files Collapse all files

52
Penumbra/Collections/ModCollection.Inheritance.cs
View file

@ -23,23 +23,57 @@ public partial class ModCollection
// Iterate over all collections inherited from in depth-first order.
// Skip already visited collections to avoid circular dependencies.
public IEnumerable< ModCollection > GetFlattenedInheritance()
{
yield return this;
=> InheritedCollections( this ).Distinct();
foreach( var collection in _inheritance.SelectMany( c => c.GetFlattenedInheritance() )
.Where( c => !ReferenceEquals( this, c ) )
.Distinct() )
{
yield return collection;
}
// All inherited collections in application order without filtering for duplicates.
private static IEnumerable< ModCollection > InheritedCollections( ModCollection collection )
=> collection.Inheritance.SelectMany( InheritedCollections ).Prepend( collection );
// Reasons why a collection can not be inherited from.
public enum ValidInheritance
{
Valid,
Self, // Can not inherit from self
Empty, // Can not inherit from the empty collection
Contained, // Already inherited from
Circle, // Inheritance would lead to a circle.
}
// Check whether a collection can be inherited from.
public ValidInheritance CheckValidInheritance( ModCollection? collection )
{
if( collection == null || ReferenceEquals( collection, Empty ) )
{
return ValidInheritance.Empty;
}
if( ReferenceEquals( collection, this ) )
{
return ValidInheritance.Self;
}
if( _inheritance.Contains( collection ) )
{
return ValidInheritance.Contained;
}
if( InheritedCollections( collection ).Any( c => c == this ) )
{
return ValidInheritance.Circle;
}
return ValidInheritance.Valid;
}
private bool CheckForCircle( ModCollection collection )
=> ReferenceEquals( collection, this ) || _inheritance.Any( c => c.CheckForCircle( collection ) );
// Add a new collection to the inheritance list.
// We do not check if this collection would be visited before,
// only that it is unique in the list itself.
public bool AddInheritance( ModCollection collection )
{
if( ReferenceEquals( collection, this ) || _inheritance.Contains( collection ) )
if( CheckValidInheritance( collection ) != ValidInheritance.Valid )
{
return false;
}