33 lines
1.2 KiB
C#
33 lines
1.2 KiB
C#
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#if UNITY_2022_2_OR_NEWER
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using System;
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using UnityEditor;
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using UnityEditor.Build.Content;
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using UnityEditor.Build.Pipeline;
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using UnityEditor.Build.Pipeline.Interfaces;
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using UnityEditor.Build.Pipeline.Utilities;
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namespace UnityEditor.Build.Pipeline.Utilities
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{
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/// <summary>
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/// Generates a deterministic identifier using a MD5 hash algorithm and does not require object ordering to be deterministic.
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/// This algorithm ensures objects coming from the same asset are packed closer together and can improve loading performance under certain situations.
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/// Sorts MonoScript types to the top of the file and is required when building ContentFiles.
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/// </summary>
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public class ContentFileIdentifiers : PrefabPackedIdentifiers, IDeterministicIdentifiers
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{
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/// <inheritdoc />
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public override long SerializationIndexFromObjectIdentifier(ObjectIdentifier objectID)
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{
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long result = base.SerializationIndexFromObjectIdentifier(objectID);
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long mask = ((long)1 << 63);
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if (BuildCacheUtility.GetMainTypeForObject(objectID) == typeof(MonoScript))
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result |= mask;
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else
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result &= ~mask;
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return result;
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}
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}
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}
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#endif
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