Refactoring: Move Source (Legality) (#3560)
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
2022-08-03 23:15:27 +00:00
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using System;
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namespace PKHeX.Core;
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/// <summary>
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/// Group that checks the source of a move in <see cref="GameVersion.Gen4"/>.
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/// </summary>
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public sealed class LearnGroup4 : ILearnGroup
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{
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public static readonly LearnGroup4 Instance = new();
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private const int Generation = 4;
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public ILearnGroup? GetPrevious(PKM pk, EvolutionHistory history, IEncounterTemplate enc, LearnOption option) => enc.Generation is Generation ? null : LearnGroup3.Instance;
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2022-08-04 01:17:46 +00:00
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public bool HasVisited(PKM pk, EvolutionHistory history) => history.HasVisitedGen4;
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Refactoring: Move Source (Legality) (#3560)
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
2022-08-03 23:15:27 +00:00
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2022-08-27 06:43:36 +00:00
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public bool Check(Span<MoveResult> result, ReadOnlySpan<ushort> current, PKM pk, EvolutionHistory history,
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Refactoring: Move Source (Legality) (#3560)
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
2022-08-03 23:15:27 +00:00
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IEncounterTemplate enc, MoveSourceType types = MoveSourceType.All, LearnOption option = LearnOption.Current)
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{
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var evos = history.Gen4;
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for (var i = 0; i < evos.Length; i++)
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Check(result, current, pk, evos[i], i);
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if (types.HasFlagFast(MoveSourceType.Encounter) && enc is EncounterEgg { Generation: Generation } egg)
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CheckEncounterMoves(result, current, egg);
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if (types.HasFlagFast(MoveSourceType.LevelUp) && enc.Species is (int)Species.Nincada && evos.Length == 2 && evos[0].Species == (int)Species.Shedinja)
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CheckNincadaMoves(result, current, evos[^1]);
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return MoveResult.AllParsed(result);
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}
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2022-08-27 06:43:36 +00:00
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private static void CheckNincadaMoves(Span<MoveResult> result, ReadOnlySpan<ushort> current, EvoCriteria nincada)
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Refactoring: Move Source (Legality) (#3560)
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
2022-08-03 23:15:27 +00:00
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{
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if (MoveResult.AllParsed(result))
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return;
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// If a result is not valid, check to see if it is a Shedinja move.
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// Ninjask's Gen4 learnset is a superset of Gen3, so don't bother re-checking in that group.
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var shedinja = LearnSource4Pt.Instance;
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var moves = shedinja.GetLearnset((int)Species.Ninjask, 0);
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for (var i = 0; i < result.Length; i++)
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{
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if (result[i].Valid)
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continue;
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var move = current[i];
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if (move == 0)
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break;
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var level = moves.GetLevelLearnMove(move);
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if (level == -1 || !nincada.InsideLevelRange(level))
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continue;
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var info = new MoveLearnInfo(LearnMethod.ShedinjaEvo, LearnEnvironment.Pt, (byte)level);
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result[i] = new MoveResult(info, 0, Generation);
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break; // Can only have one Ninjask move.
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}
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}
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2022-08-27 06:43:36 +00:00
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private static void CheckEncounterMoves(Span<MoveResult> result, ReadOnlySpan<ushort> current, EncounterEgg egg)
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Refactoring: Move Source (Legality) (#3560)
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
2022-08-03 23:15:27 +00:00
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{
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2022-08-27 06:43:36 +00:00
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ReadOnlySpan<ushort> eggMoves, levelMoves;
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Refactoring: Move Source (Legality) (#3560)
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
2022-08-03 23:15:27 +00:00
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if (egg.Version <= GameVersion.SS) // HG/SS
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{
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var inst = LearnSource4HGSS.Instance;
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eggMoves = inst.GetEggMoves(egg.Species, egg.Form);
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levelMoves = egg.CanInheritMoves
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? inst.GetLearnset(egg.Species, egg.Form).Moves
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2022-08-27 06:43:36 +00:00
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: ReadOnlySpan<ushort>.Empty;
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Refactoring: Move Source (Legality) (#3560)
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
2022-08-03 23:15:27 +00:00
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}
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else if (egg.Version is GameVersion.Pt)
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{
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var inst = LearnSource4Pt.Instance;
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eggMoves = inst.GetEggMoves(egg.Species, egg.Form);
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levelMoves = egg.CanInheritMoves
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? inst.GetLearnset(egg.Species, egg.Form).Moves
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2022-08-27 06:43:36 +00:00
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: ReadOnlySpan<ushort>.Empty;
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Refactoring: Move Source (Legality) (#3560)
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
2022-08-03 23:15:27 +00:00
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}
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else
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{
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var inst = LearnSource4DP.Instance;
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eggMoves = inst.GetEggMoves(egg.Species, egg.Form);
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levelMoves = egg.CanInheritMoves
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? inst.GetLearnset(egg.Species, egg.Form).Moves
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2022-08-27 06:43:36 +00:00
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: ReadOnlySpan<ushort>.Empty;
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Refactoring: Move Source (Legality) (#3560)
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
2022-08-03 23:15:27 +00:00
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}
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for (var i = result.Length - 1; i >= 0; i--)
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{
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if (result[i].Valid)
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continue;
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var move = current[i];
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if (eggMoves.Contains(move))
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result[i] = new(LearnMethod.EggMove);
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else if (levelMoves.Contains(move))
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result[i] = new(LearnMethod.InheritLevelUp);
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else if (move is (int)Move.VoltTackle && egg.CanHaveVoltTackle)
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result[i] = new(LearnMethod.SpecialEgg);
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}
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}
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2022-08-27 06:43:36 +00:00
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private static void Check(Span<MoveResult> result, ReadOnlySpan<ushort> current, PKM pk, EvoCriteria evo, int stage)
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Refactoring: Move Source (Legality) (#3560)
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
2022-08-03 23:15:27 +00:00
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{
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if (evo.Species is not ((int)Species.Deoxys or (int)Species.Giratina or (int)Species.Shaymin))
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{
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CheckInternal(result, current, pk, evo, stage);
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return;
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}
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// Check all forms
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var inst = LearnSource4HGSS.Instance;
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if (!inst.TryGetPersonal(evo.Species, evo.Form, out var pi))
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return;
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var fc = pi.FormCount;
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for (int i = 0; i < fc; i++)
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CheckInternal(result, current, pk, evo with { Form = (byte)i }, stage);
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}
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2022-08-27 06:43:36 +00:00
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private static void CheckInternal(Span<MoveResult> result, ReadOnlySpan<ushort> current, PKM pk, EvoCriteria evo, int stage)
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Refactoring: Move Source (Legality) (#3560)
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
2022-08-03 23:15:27 +00:00
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{
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var hgss = LearnSource4HGSS.Instance;
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var species = evo.Species;
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if (!hgss.TryGetPersonal(species, evo.Form, out var hgss_pi))
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return; // should never happen.
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var pt = LearnSource4Pt.Instance;
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if (!pt.TryGetPersonal(species, evo.Form, out var pt_pi))
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return; // should never happen.
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var dp = LearnSource4DP.Instance;
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for (int i = result.Length - 1; i >= 0; i--)
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{
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if (result[i].Valid)
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continue;
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// Level Up moves are different for each game, but others (TM/Tutor) are same (except Pt Defog).
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var move = current[i];
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var chk = hgss.GetCanLearn(pk, hgss_pi, evo, move);
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if (chk != default)
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{
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result[i] = new(chk, (byte)stage, Generation);
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continue;
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}
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chk = pt.GetCanLearn(pk, pt_pi, evo, move, MoveSourceType.LevelUp | MoveSourceType.AllMachines);
|
|
|
|
|
if (chk != default)
|
|
|
|
|
{
|
|
|
|
|
result[i] = new(chk, (byte)stage, Generation);
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
chk = dp.GetCanLearn(pk, pt_pi, evo, move, MoveSourceType.LevelUp);
|
|
|
|
|
if (chk != default)
|
|
|
|
|
{
|
|
|
|
|
result[i] = new(chk, (byte)stage, Generation);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
public void GetAllMoves(Span<bool> result, PKM pk, EvolutionHistory history, IEncounterTemplate enc, MoveSourceType types = MoveSourceType.All, LearnOption option = LearnOption.Current)
|
|
|
|
|
{
|
|
|
|
|
if (types.HasFlagFast(MoveSourceType.Encounter) && enc.Generation == Generation)
|
|
|
|
|
FlagEncounterMoves(enc, result);
|
|
|
|
|
|
|
|
|
|
var evos = history.Gen4;
|
|
|
|
|
foreach (var evo in evos)
|
|
|
|
|
GetAllMoves(result, pk, evo, types);
|
|
|
|
|
|
|
|
|
|
if (enc.Species is (int)Species.Nincada && evos.Length == 2 && evos[0].Species == (int)Species.Shedinja)
|
|
|
|
|
{
|
|
|
|
|
var shedinja = LearnSource4Pt.Instance;
|
|
|
|
|
var moves = shedinja.GetLearnset((int)Species.Ninjask, 0);
|
|
|
|
|
(bool HasMoves, int start, int end) = moves.GetMoveRange(evos[0].LevelMax, 20);
|
|
|
|
|
if (HasMoves)
|
|
|
|
|
{
|
|
|
|
|
var all = moves.Moves;
|
|
|
|
|
for (int i = start; i < end; i++)
|
|
|
|
|
result[all[i]] = true;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
private static void GetAllMoves(Span<bool> result, PKM pk, EvoCriteria evo, MoveSourceType types)
|
|
|
|
|
{
|
|
|
|
|
LearnSource4HGSS.Instance.GetAllMoves(result, pk, evo, types);
|
|
|
|
|
LearnSource4Pt.Instance.GetAllMoves(result, pk, evo, types & (MoveSourceType.LevelUp | MoveSourceType.AllMachines));
|
|
|
|
|
LearnSource4DP.Instance.GetAllMoves(result, pk, evo, types & (MoveSourceType.LevelUp));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
private static void FlagEncounterMoves(IEncounterTemplate enc, Span<bool> result)
|
|
|
|
|
{
|
2022-08-22 00:34:32 +00:00
|
|
|
if (enc is IMoveset { Moves: { HasMoves: true } x })
|
Refactoring: Move Source (Legality) (#3560)
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
2022-08-03 23:15:27 +00:00
|
|
|
{
|
2022-08-22 00:34:32 +00:00
|
|
|
result[x.Move4] = true;
|
|
|
|
|
result[x.Move3] = true;
|
|
|
|
|
result[x.Move2] = true;
|
|
|
|
|
result[x.Move1] = true;
|
Refactoring: Move Source (Legality) (#3560)
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
2022-08-03 23:15:27 +00:00
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
