mathe/Library/PackageCache/com.unity.shadergraph@14.0.8/Editor/Generation/Collections/AssetCollection.cs

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2024-09-20 20:30:10 +02:00
using System;
using System.Collections.Generic;
using UnityEngine;
namespace UnityEditor.ShaderGraph
{
// this class is used to track asset dependencies in shadergraphs and subgraphs
// that is: it tracks files that the shadergraph or subgraph must access to generate the shader
// this data is used to automatically re-import the shadergraphs or subgraphs when any of the tracked files change
[GenerationAPI]
internal class AssetCollection
{
[Flags]
public enum Flags
{
SourceDependency = 1 << 0, // ShaderGraph directly reads the source file in the Assets directory
ArtifactDependency = 1 << 1, // ShaderGraph reads the import result artifact (i.e. subgraph import)
IsSubGraph = 1 << 2, // This asset is a SubGraph (used when we need to get multiple levels of dependencies)
IncludeInExportPackage = 1 << 3 // This asset should be pulled into any .unitypackages built via "Export Package.."
}
internal Dictionary<GUID, Flags> assets = new Dictionary<GUID, Flags>();
internal IEnumerable<GUID> assetGUIDs { get { return assets.Keys; } }
public AssetCollection()
{
}
internal void Clear()
{
assets.Clear();
}
// these are assets that we read the source files directly (directly reading the file out of the Assets directory)
public void AddAssetDependency(GUID assetGUID, Flags flags)
{
if (assets.TryGetValue(assetGUID, out Flags existingFlags))
{
assets[assetGUID] = existingFlags | flags;
}
else
{
assets.Add(assetGUID, flags);
}
}
}
}