mirror of
https://github.com/kwsch/PKHeX
synced 2024-12-21 18:03:09 +00:00
9166d0eb64
Rewrites a good amount of legality APIs pertaining to: * Legal moves that can be learned * Evolution chains & cross-generation paths * Memory validation with forgotten moves In generation 8, there are 3 separate contexts an entity can exist in: SW/SH, BD/SP, and LA. Not every entity can cross between them, and not every entity from generation 7 can exist in generation 8 (Gogoat, etc). By creating class models representing the restrictions to cross each boundary, we are able to better track and validate data. The old implementation of validating moves was greedy: it would iterate for all generations and evolutions, and build a full list of every move that can be learned, storing it on the heap. Now, we check one game group at a time to see if the entity can learn a move that hasn't yet been validated. End result is an algorithm that requires 0 allocation, and a smaller/quicker search space. The old implementation of storing move parses was inefficient; for each move that was parsed, a new object is created and adjusted depending on the parse. Now, move parse results are `struct` and store the move parse contiguously in memory. End result is faster parsing and 0 memory allocation. * `PersonalTable` objects have been improved with new API methods to check if a species+form can exist in the game. * `IEncounterTemplate` objects have been improved to indicate the `EntityContext` they originate in (similar to `Generation`). * Some APIs have been extended to accept `Span<T>` instead of Array/IEnumerable
139 lines
4 KiB
C#
139 lines
4 KiB
C#
using System;
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namespace PKHeX.Core;
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/// <summary>
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/// Generation 2 Static Encounter
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/// </summary>
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/// <inheritdoc cref="EncounterStatic"/>
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public record EncounterStatic2 : EncounterStatic
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{
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public sealed override int Generation => 2;
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public override EntityContext Context => EntityContext.Gen2;
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public sealed override byte Level { get; init; }
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public EncounterStatic2(byte species, byte level, GameVersion game) : base(game)
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{
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Species = species;
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Level = level;
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}
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public override bool IsMatchExact(PKM pk, EvoCriteria evo)
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{
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if (Shiny == Shiny.Always && !pk.IsShiny)
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return false;
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return base.IsMatchExact(pk, evo);
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}
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protected override bool IsMatchEggLocation(PKM pk)
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{
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if (pk.Format > 2)
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return true;
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if (pk.IsEgg)
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{
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if (!EggEncounter)
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return false;
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if (pk.Met_Location != 0 && pk.Met_Level != 0)
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return false;
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if (pk.OT_Friendship > EggCycles) // Dizzy Punch eggs start with below-normal hatch counters.
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return false;
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}
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else
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{
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switch (pk.Met_Level)
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{
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case 0 when pk.Met_Location != 0:
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return false;
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case 1: // 0 = second floor of every Pokémon Center, valid
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return true;
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default:
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if (pk.Met_Location == 0 && pk.Met_Level != 0)
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return false;
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break;
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}
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}
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return true;
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}
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protected override bool IsMatchLevel(PKM pk, EvoCriteria evo)
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{
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if (pk is ICaughtData2 {CaughtData: not 0})
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return pk.Met_Level == (EggEncounter ? 1 : Level);
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return Level <= evo.LevelMax;
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}
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protected override bool IsMatchLocation(PKM pk)
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{
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if (EggEncounter)
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return true;
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if (Location == 0)
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return true;
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if (pk is ICaughtData2 {CaughtData: not 0})
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return Location == pk.Met_Location;
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return true;
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}
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protected override bool IsMatchPartial(PKM pk) => false;
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protected override void ApplyDetails(ITrainerInfo tr, EncounterCriteria criteria, PKM pk)
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{
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base.ApplyDetails(tr, criteria, pk);
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var pk2 = (PK2)pk;
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if (Shiny == Shiny.Always)
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pk2.SetShiny();
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}
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protected override void SetMetData(PKM pk, int level, DateTime today)
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{
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if (Version != GameVersion.C && pk.OT_Gender != 1)
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return;
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var pk2 = (PK2)pk;
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pk2.Met_Location = Location;
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pk2.Met_Level = level;
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pk2.Met_TimeOfDay = EncounterTime.Any.RandomValidTime();
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}
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}
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public sealed record EncounterStatic2Odd : EncounterStatic2
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{
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public EncounterStatic2Odd(byte species) : base(species, 5, GameVersion.C)
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{
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EggLocation = 256;
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EggCycles = 20;
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}
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public override bool IsMatchExact(PKM pk, EvoCriteria evo)
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{
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// Let it get picked up as regular EncounterEgg under other conditions.
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if (pk.Format > 2)
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return false;
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if (!pk.HasMove((int)Move.DizzyPunch))
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return false;
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if (pk.IsEgg && pk.EXP != 125)
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return false;
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return base.IsMatchExact(pk, evo);
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}
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}
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public sealed record EncounterStatic2Roam : EncounterStatic2
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{
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// Routes 29-46, except 40 & 41; total 16.
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// 02, 04, 05, 08, 11, 15, 18, 20,
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// 21, 25, 26, 34, 37, 39, 43, 45,
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private const ulong RoamLocations = 0b10_1000_1010_0100_0000_0110_0011_0100_1000_1001_0011_0100;
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public override int Location => 2;
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public EncounterStatic2Roam(byte species, byte level, GameVersion ver) : base(species, level, ver) { }
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protected override bool IsMatchLocation(PKM pk)
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{
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if (!pk.HasOriginalMetLocation)
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return true;
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// Gen2 met location is always u8
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var loc = pk.Met_Location;
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return loc <= 45 && ((RoamLocations & (1UL << loc)) != 0);
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}
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}
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