PKHeX/PKHeX.Core/Saves/Substructures/Gen6/ItemInfo6.cs
Kurt 47071b41f3
Refactoring: Span-based value writes and method signatures (#3361)
Existing `get`/`set` logic is flawed in that it doesn't work on Big Endian operating systems, and it allocates heap objects when it doesn't need to.

`System.Buffers.Binary.BinaryPrimitives` in the `System.Memory` NuGet package provides both Little Endian and Big Endian methods to read and write data; all the `get`/`set` operations have been reworked to use this new API. This removes the need for PKHeX's manual `BigEndian` class, as all functions are already covered by the BinaryPrimitives API.

The `StringConverter` has now been rewritten to accept a Span to read from & write to, no longer requiring a temporary StringBuilder.

Other Fixes included:
- The Super Training UI for Gen6 has been reworked according to the latest block structure additions.
- Cloning a Stadium2 Save File now works correctly (opening from the Folder browser list).
- Checksum & Sanity properties removed from parent PKM class, and is now implemented via interface.
2022-01-02 21:35:59 -08:00

55 lines
1.8 KiB
C#

using System;
using static System.Buffers.Binary.BinaryPrimitives;
namespace PKHeX.Core
{
public sealed class ItemInfo6 : SaveBlock
{
public ItemInfo6(SaveFile sav, int offset) : base(sav) => Offset = offset;
private const int BoundItemCount = 4;
private const int RecentItemCount = 12;
public int[] SelectItems
{
// UP,RIGHT,DOWN,LEFT
get
{
var span = Data.AsSpan(Offset + 10);
int[] list = new int[BoundItemCount];
for (int i = 0; i < list.Length; i++)
list[i] = ReadUInt16LittleEndian(span[(2 * i)..]);
return list;
}
set
{
if (value.Length != BoundItemCount)
throw new ArgumentException(nameof(value));
var span = Data.AsSpan(Offset + 10);
for (int i = 0; i < value.Length; i++)
WriteUInt16LittleEndian(span[(2 * i)..], (ushort)value[i]);
}
}
public int[] RecentItems
{
// Items recently interacted with (Give, Use)
get
{
var span = Data.AsSpan(Offset + 20);
int[] list = new int[RecentItemCount];
for (int i = 0; i < list.Length; i++)
list[i] = ReadUInt16LittleEndian(span[(2 * i)..]);
return list;
}
set
{
if (value.Length != RecentItemCount)
throw new ArgumentException(nameof(value));
var span = Data.AsSpan(Offset + 20);
for (int i = 0; i < value.Length; i++)
WriteUInt16LittleEndian(span[(2 * i)..], (ushort)value[i]);
}
}
}
}