mirror of
https://github.com/kwsch/PKHeX
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6d4cd60461
Improve cctor times for Breeding; direct calls for splitbreed checks; inlined binary searches via generated IL instead of hashset Fix permitting alpha ribbon on non-alphas in Gen8/8a/8b, disallow Gen8a/8b ribbons for Gen7 Alolan Raichu Improve some IL generation of EvoChain logic Add xmldoc for new evotree additions
77 lines
2.6 KiB
C#
77 lines
2.6 KiB
C#
using System.Collections.Generic;
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namespace PKHeX.Core;
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/// <summary>
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/// Exposes abstractions for reverse and forward evolution lookups.
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/// </summary>
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public interface IEvolutionNetwork
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{
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/// <summary>
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/// Provides interactions to look forward in an evolution tree.
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/// </summary>
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IEvolutionForward Forward { get; }
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/// <summary>
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/// Provides interactions to look backward in an evolution tree.
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/// </summary>
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IEvolutionReverse Reverse { get; }
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}
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/// <summary>
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/// Base abstraction for <see cref="EvolutionTree"/>
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/// </summary>
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public abstract class EvolutionNetwork : IEvolutionNetwork
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{
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public IEvolutionForward Forward { get; }
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public IEvolutionReverse Reverse { get; }
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protected EvolutionNetwork(IEvolutionForward forward, IEvolutionReverse reverse)
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{
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Forward = forward;
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Reverse = reverse;
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}
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/// <summary>
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/// Gets all species the <see cref="species"/>-<see cref="form"/> can evolve to & from, yielded in order of increasing evolution stage.
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/// </summary>
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/// <param name="species">Species ID</param>
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/// <param name="form">Form ID</param>
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/// <returns>Enumerable of species IDs (with the Form IDs included, left shifted by 11).</returns>
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public IEnumerable<(ushort Species, byte Form)> GetEvolutionsAndPreEvolutions(ushort species, byte form)
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{
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foreach (var s in Reverse.GetPreEvolutions(species, form))
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yield return s;
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yield return (species, form);
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foreach (var s in Forward.GetEvolutions(species, form))
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yield return s;
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}
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/// <summary>
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/// Checks if the requested <see cref="species"/>-<see cref="form"/> is can provide any common evolutions with the <see cref="otherSpecies"/>-<see cref="otherForm"/>.
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/// </summary>
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public bool IsSpeciesDerivedFrom(ushort species, byte form, ushort otherSpecies, byte otherForm, bool ignoreForm = true)
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{
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var evos = GetEvolutionsAndPreEvolutions(species, form);
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foreach (var (s, f) in evos)
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{
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if (s != otherSpecies)
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continue;
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if (ignoreForm)
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return true;
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return f == otherForm;
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}
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return false;
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}
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/// <summary>
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/// Gets the base (baby) species and form of the given <see cref="species"/>-<see cref="form"/> pair.
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/// </summary>
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public (ushort Species, byte Form) GetBaseSpeciesForm(ushort species, byte form)
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{
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var chain = Reverse.GetPreEvolutions(species, form);
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foreach (var evo in chain)
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return evo;
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return (species, form);
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}
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}
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