mirror of
https://github.com/kwsch/PKHeX
synced 2024-12-21 01:43:10 +00:00
47071b41f3
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.
79 lines
No EOL
2.8 KiB
C#
79 lines
No EOL
2.8 KiB
C#
using System;
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using static System.Buffers.Binary.BinaryPrimitives;
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namespace PKHeX.Core
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{
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public sealed class MysteryBlock5 : SaveBlock
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{
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private const int FlagStart = 0;
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private const int MaxReceivedFlag = 2048;
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private const int MaxCardsPresent = 12;
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private const int FlagRegionSize = (MaxReceivedFlag / 8); // 0x100
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private const int CardStart = FlagStart + FlagRegionSize;
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private const int DataSize = 0xA90;
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private int SeedOffset => Offset + DataSize;
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// Everything is stored encrypted, and only decrypted on demand. Only crypt on object fetch...
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public MysteryBlock5(SAV5BW sav, int offset) : base(sav) => Offset = offset;
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public MysteryBlock5(SAV5B2W2 sav, int offset) : base(sav) => Offset = offset;
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public EncryptedMysteryGiftAlbum GiftAlbum
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{
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get
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{
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uint seed = ReadUInt32LittleEndian(Data.AsSpan(SeedOffset));
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byte[] wcData = SAV.GetData(Offset + FlagStart, 0xA90); // Encrypted, Decrypt
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return GetAlbum(seed, wcData);
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}
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set
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{
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var wcData = SetAlbum(value);
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// Write Back
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wcData.CopyTo(Data, Offset + FlagStart);
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WriteUInt32LittleEndian(Data.AsSpan(SeedOffset), value.Seed);
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}
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}
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private static EncryptedMysteryGiftAlbum GetAlbum(uint seed, byte[] wcData)
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{
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PokeCrypto.CryptArray(wcData, seed);
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var flags = new bool[MaxReceivedFlag];
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var gifts = new DataMysteryGift[MaxCardsPresent];
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var Info = new EncryptedMysteryGiftAlbum(gifts, flags, seed);
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// 0x100 Bytes for Used Flags
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for (int i = 0; i < Info.Flags.Length; i++)
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Info.Flags[i] = (wcData[i / 8] >> i % 8 & 0x1) == 1;
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// 12 PGFs
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for (int i = 0; i < Info.Gifts.Length; i++)
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{
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var data = wcData.AsSpan(CardStart + (i * PGF.Size), PGF.Size).ToArray();
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Info.Gifts[i] = new PGF(data);
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}
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return Info;
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}
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private static byte[] SetAlbum(EncryptedMysteryGiftAlbum value)
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{
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byte[] wcData = new byte[0xA90];
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// Toss back into byte[]
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for (int i = 0; i < value.Flags.Length; i++)
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{
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if (value.Flags[i])
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wcData[i / 8] |= (byte) (1 << (i & 7));
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}
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var span = wcData.AsSpan(CardStart);
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for (int i = 0; i < value.Gifts.Length; i++)
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value.Gifts[i].Data.CopyTo(span[(i * PGF.Size)..]);
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// Decrypted, Encrypt
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PokeCrypto.CryptArray(wcData, value.Seed);
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return wcData;
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}
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}
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} |