PKHeX/PKHeX.Core/PKM/Interfaces/IBattleVersion.cs
Kurt 5bdc6b9ef8
Privatize some static fields, more robust legal helper classes. (#3865)
* Uses LearnSource more throughout the codebase when appropriate, rather than loosely coupled pivot methods.
* Hides Learnset/EggMove data inside the LearnSource classes.
* Extracts functionality from the large Legal class & partial Table*.cs files into better performing helper classes.
* Cleans up some code from prior LearnSource commits.
2023-04-20 21:23:15 -07:00

64 lines
2.1 KiB
C#

using System;
namespace PKHeX.Core;
/// <summary>
/// Interface that exposes a <see cref="BattleVersion"/> for allowing a Pokémon into ranked battles if it originated from a prior game.
/// </summary>
public interface IBattleVersion
{
/// <summary>
/// Indicates which <see cref="GameVersion"/> the Pokémon's moves were reset on.
/// </summary>
byte BattleVersion { get; set; }
}
public static class BattleVersionExtensions
{
/// <summary>
/// Checks if the applied Battle Version value is valid based on visitation.
/// </summary>
public static bool IsBattleVersionValid<T>(this T pk, EvolutionHistory h) where T : PKM, IBattleVersion => pk.BattleVersion switch
{
0 => true,
(int)GameVersion.SW or (int)GameVersion.SH => h.HasVisitedSWSH && !(pk.SWSH || pk.BDSP || pk.LA),
_ => false,
};
/// <summary>
/// Resets the <see cref="PKM"/>'s moves and sets the requested version.
/// </summary>
/// <param name="v">Reference to the object to set the <see cref="version"/></param>
/// <param name="pk">Reference to the same object that gets moves reset</param>
/// <param name="version">Version to apply</param>
public static void AdaptToBattleVersion(this IBattleVersion v, PKM pk, GameVersion version)
{
var empty = new Moveset();
pk.SetMoves(empty);
pk.SetRelearnMoves(empty);
Span<ushort> moves = stackalloc ushort[4];
var source = GameData.GetLearnSource(version);
source.SetEncounterMoves(pk.Species, pk.Form, pk.CurrentLevel, moves);
pk.SetMoves(moves);
pk.FixMoves();
v.BattleVersion = (byte)version;
}
/// <summary>
/// Gets the minimum Generation ID that it was last reset in.
/// </summary>
public static int GetMinGeneration(this IBattleVersion v)
{
var ver = v.BattleVersion;
if (ver == 0)
return 1;
var game = (GameVersion) ver;
if (!game.IsValidSavedVersion())
return -1;
var gen = game.GetGeneration();
if (gen >= 8)
return gen;
return -1;
}
}