MeshElementRemappings.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreMinimal.h"
#include "MeshTypes.h"
 
struct FElementIDRemappings
{
    TSparseArray<int32> NewVertexIndexLookup;
    TSparseArray<int32> NewVertexInstanceIndexLookup;
    TSparseArray<int32> NewEdgeIndexLookup;
    TSparseArray<int32> NewTriangleIndexLookup;
    TSparseArray<int32> NewUVIndexLookup;
    TSparseArray<int32> NewPolygonIndexLookup;
    TSparseArray<int32> NewPolygonGroupIndexLookup;
 
    FVertexID GetRemappedVertexID( FVertexID VertexID ) const
    {
        checkSlow( NewVertexIndexLookup.IsAllocated( VertexID.GetValue() ) );
        return FVertexID( NewVertexIndexLookup[ VertexID.GetValue() ] );
    }
 
    FVertexInstanceID GetRemappedVertexInstanceID( FVertexInstanceID VertexInstanceID ) const
    {
        checkSlow( NewVertexInstanceIndexLookup.IsAllocated( VertexInstanceID.GetValue() ) );
        return FVertexInstanceID( NewVertexInstanceIndexLookup[ VertexInstanceID.GetValue() ] );
    }
 
    FEdgeID GetRemappedEdgeID( FEdgeID EdgeID ) const
    {
        checkSlow( NewEdgeIndexLookup.IsAllocated( EdgeID.GetValue() ) );
        return FEdgeID( NewEdgeIndexLookup[ EdgeID.GetValue() ] );
    }
 
    FUVID GetRemappedUVID( FUVID UVID ) const
    {
        checkSlow( NewUVIndexLookup.IsAllocated( UVID.GetValue() ) );
        return FUVID( NewUVIndexLookup[ UVID.GetValue() ] );
    }
 
    FTriangleID GetRemappedTriangleID( FTriangleID TriangleID ) const
    {
        checkSlow( NewTriangleIndexLookup.IsAllocated( TriangleID.GetValue() ) );
        return FTriangleID( NewTriangleIndexLookup[ TriangleID.GetValue() ] );
    }
 
    FPolygonID GetRemappedPolygonID( FPolygonID PolygonID ) const
    {
        checkSlow( NewPolygonIndexLookup.IsAllocated( PolygonID.GetValue() ) );
        return FPolygonID( NewPolygonIndexLookup[ PolygonID.GetValue() ] );
    }
 
    FPolygonGroupID GetRemappedPolygonGroupID( FPolygonGroupID PolygonGroupID ) const
    {
        checkSlow( NewPolygonGroupIndexLookup.IsAllocated( PolygonGroupID.GetValue() ) );
        return FPolygonGroupID( NewPolygonGroupIndexLookup[ PolygonGroupID.GetValue() ] );
    }
};