mirror of
https://github.com/kwsch/PKHeX
synced 2024-12-24 19:33:10 +00:00
a57f40ae7d
Many years ago, PKX used to be a >4,000 line bloated file, which spun off multiple classes like CommonEdits and most of the early non-GUI PKM related logic. Now, it's just a stub to source the latest generation & personal table. Separate files = more concise info, and more room to grow to do more advanced things. Makes the IsPresent methods public (no longer internal).
56 lines
2.3 KiB
C#
56 lines
2.3 KiB
C#
using System;
|
|
using System.Collections.Generic;
|
|
using static System.Buffers.Binary.BinaryPrimitives;
|
|
|
|
namespace PKHeX.Core;
|
|
|
|
public static class EntityDetection
|
|
{
|
|
private static readonly HashSet<int> Sizes = new()
|
|
{
|
|
PokeCrypto.SIZE_1JLIST, PokeCrypto.SIZE_1ULIST,
|
|
PokeCrypto.SIZE_2ULIST, PokeCrypto.SIZE_2JLIST, PokeCrypto.SIZE_2STADIUM,
|
|
PokeCrypto.SIZE_3STORED, PokeCrypto.SIZE_3PARTY,
|
|
PokeCrypto.SIZE_3CSTORED, PokeCrypto.SIZE_3XSTORED,
|
|
PokeCrypto.SIZE_4STORED, PokeCrypto.SIZE_4PARTY,
|
|
PokeCrypto.SIZE_5PARTY,
|
|
PokeCrypto.SIZE_6STORED, PokeCrypto.SIZE_6PARTY,
|
|
PokeCrypto.SIZE_8STORED, PokeCrypto.SIZE_8PARTY,
|
|
PokeCrypto.SIZE_8ASTORED, PokeCrypto.SIZE_8APARTY,
|
|
};
|
|
|
|
/// <summary>
|
|
/// Determines if the given length is valid for a <see cref="PKM"/>.
|
|
/// </summary>
|
|
/// <param name="len">Data length of the file/array.</param>
|
|
/// <returns>A <see cref="bool"/> indicating whether or not the length is valid for a <see cref="PKM"/>.</returns>
|
|
public static bool IsSizePlausible(long len) => Sizes.Contains((int)len);
|
|
|
|
public static bool IsPresentGB(ReadOnlySpan<byte> data) => data[0] != 0; // Species non-zero
|
|
public static bool IsPresentGC(ReadOnlySpan<byte> data) => ReadUInt16BigEndian(data) != 0; // Species non-zero
|
|
public static bool IsPresentGBA(ReadOnlySpan<byte> data) => (data[0x13] & 0xFB) == 2; // ignore egg flag, must be FlagHasSpecies.
|
|
|
|
public static bool IsPresent(ReadOnlySpan<byte> data)
|
|
{
|
|
if (ReadUInt32LittleEndian(data) != 0) // PID
|
|
return true;
|
|
ushort species = ReadUInt16LittleEndian(data[8..]);
|
|
return species != 0;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets a function that can check a byte array (at an offset) to see if a <see cref="PKM"/> is possibly present.
|
|
/// </summary>
|
|
/// <param name="blank"></param>
|
|
/// <returns>Function that checks if a byte array (at an offset) has a <see cref="PKM"/> present</returns>
|
|
public static Func<byte[], bool> GetFuncIsPresent(PKM blank)
|
|
{
|
|
if (blank.Format >= 4)
|
|
return x => IsPresent(x);
|
|
if (blank.Format <= 2)
|
|
return x => IsPresentGB(x);
|
|
if (blank.Data.Length <= PokeCrypto.SIZE_3PARTY)
|
|
return x => IsPresentGBA(x);
|
|
return x => IsPresentGC(x);
|
|
}
|
|
}
|