PKHeX/PKHeX.Core/Legality/Tables/FormChangeUtil.cs
Kurt 8c5773969a Add HOME hoopa move share, add form specific check
Hoopa cannot know both moves due to form reversion
Kyurem cannot know both moves due to form reversion
Kyurem cannot know Scary Face when fused in past games

Add dexnav for AtAnyTime/HOME lookback when original moveset deleted (no longer in local relearn moves)
BDSP Underground encounters w/ egg moves can be shared by other means
2023-07-15 13:58:41 -07:00

60 lines
2.3 KiB
C#

using System;
using System.Collections.Generic;
namespace PKHeX.Core;
/// <summary>
/// Logic for checking if an entity can freely change <see cref="PKM.Form"/>.
/// </summary>
public static class FormChangeUtil
{
/// <summary>
/// Checks if all forms should be iterated when checking for moves.
/// </summary>
/// <param name="species">Entity species</param>
/// <param name="form">Entity form</param>
/// <param name="generation">Generation we're checking in</param>
/// <param name="option">Conditions we're checking with</param>
public static bool ShouldIterateForms(ushort species, byte form, int generation, LearnOption option)
{
if (option.IsPast())
return FormChangeMoves.TryGetValue(species, out var func) && func((generation, form));
return IterateAllForms(species);
}
private static bool IterateAllForms(ushort species) => FormChangeMovesRetain.Contains(species);
/// <summary>
/// Species that can change between their forms and get access to form-specific moves.
/// </summary>
private static ReadOnlySpan<ushort> FormChangeMovesRetain => new ushort[]
{
(int)Species.Deoxys,
(int)Species.Giratina,
(int)Species.Shaymin,
(int)Species.Hoopa,
};
/// <summary>
/// Species that can change between their forms and get access to form-specific moves.
/// </summary>
private static readonly Dictionary<ushort, Func<(int Generation, int Form), bool>> FormChangeMoves = new()
{
{(int)Species.Deoxys, g => g.Generation >= 6},
{(int)Species.Giratina, g => g.Generation >= 6},
{(int)Species.Shaymin, g => g.Generation >= 6},
{(int)Species.Rotom, g => g.Generation >= 6},
{(int)Species.Hoopa, g => g.Generation >= 6},
{(int)Species.Tornadus, g => g.Generation >= 6},
{(int)Species.Thundurus,g => g.Generation >= 6},
{(int)Species.Landorus, g => g.Generation >= 6},
{(int)Species.Urshifu, g => g.Generation >= 8},
{(int)Species.Enamorus, g => g.Generation >= 8},
// Fuse
{(int)Species.Kyurem, g => g.Generation >= 6},
{(int)Species.Necrozma, g => g.Generation >= 8},
{(int)Species.Calyrex, g => g.Generation >= 8},
{(int)Species.Pikachu, g => g.Generation == 6},
};
}