mirror of
https://github.com/kwsch/PKHeX
synced 2024-12-18 08:23:12 +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.
40 lines
1.4 KiB
C#
40 lines
1.4 KiB
C#
using System;
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using System.Threading;
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namespace PKHeX.Core
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{
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public static partial class Util
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{
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// Multithread safe rand, ha
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public static Random Rand => _local.Value;
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private static readonly ThreadLocal<Random> _local = new(() => new Random());
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public static uint Rand32() => Rand32(Rand);
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public static uint Rand32(Random rnd) => (uint)rnd.Next(1 << 30) << 2 | (uint)rnd.Next(1 << 2);
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/// <summary>
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/// Shuffles the order of items within a collection of items.
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/// </summary>
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/// <typeparam name="T">Item type</typeparam>
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/// <param name="items">Item collection</param>
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public static void Shuffle<T>(Span<T> items) => Shuffle(items, 0, items.Length, Rand);
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/// <summary>
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/// Shuffles the order of items within a collection of items.
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/// </summary>
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/// <typeparam name="T">Item type</typeparam>
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/// <param name="items">Item collection</param>
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/// <param name="start">Starting position</param>
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/// <param name="end">Ending position</param>
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/// <param name="rnd">RNG object to use</param>
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public static void Shuffle<T>(Span<T> items, int start, int end, Random rnd)
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{
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for (int i = start; i < end; i++)
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{
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int index = i + rnd.Next(end - i);
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(items[index], items[i]) = (items[i], items[index]);
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}
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}
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}
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}
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