bbradson
46 lines
1.1 KiB
C#
46 lines
1.1 KiB
C#
// Copyright (c) 2023 bradson
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// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this
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// file, You can obtain one at https://mozilla.org/MPL/2.0/.
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using System.Diagnostics.CodeAnalysis;
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namespace PerformanceFish.Cache;
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public sealed class CellGrid<T>
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{
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private T[] _innerArray;
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private CellIndices _cellIndices;
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public CellGrid(Map map)
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{
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_innerArray = null!;
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_cellIndices = null!;
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map.InvokeWhenCellIndicesReady(Initialize);
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}
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[MemberNotNull(nameof(_innerArray), nameof(_cellIndices))]
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private void Initialize(Map map)
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{
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_cellIndices = map.cellIndices;
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_innerArray = new T[_cellIndices.NumGridCells];
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}
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public ref T this[int index]
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{
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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get => ref _innerArray[index];
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}
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public ref T this[in IntVec3 c]
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{
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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get => ref _innerArray[c.CellToIndex(_cellIndices)];
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}
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public ref T this[CellIndex cellIndex]
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{
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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get => ref _innerArray[cellIndex.Value];
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}
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} |