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