PKHeX/PKHeX.Core/Legality/Encounters/EncounterStatic/EncounterStaticShadow.cs
Kurt 6441bdadd8
Add specialized struct for Moveset and IV specs (#3572)
`Moveset` struct stores 4 moves, and exposes methods to interact with a moveset.
`IndividualValueSet` stores a 6 IV template (signed).

Performance impact:
* Less allocating on the heap: Moves - (8 bytes member ptr, 20 bytes heap->8 bytes member)
* Less allocating on the heap: IVs - (8 bytes member ptr, 28 bytes heap->8 bytes member)
* No heap pointers, no need to jump to grab data.
* Easy to inline logic for checking if moves are present (no linq usage with temporary collections).

End result is faster ctor times, less memory used, faster program.
2022-08-21 17:34:32 -07:00

117 lines
3.9 KiB
C#

namespace PKHeX.Core;
/// <summary>
/// Shadow Pokémon Encounter found in <see cref="GameVersion.CXD"/>
/// </summary>
/// <inheritdoc cref="EncounterStatic"/>
/// <param name="ID">Initial Shadow Gauge value.</param>
/// <param name="Gauge">Initial Shadow Gauge value.</param>
/// <param name="Locks">Team Specification with required <see cref="Species"/>, <see cref="Nature"/> and Gender.</param>
// ReSharper disable NotAccessedPositionalProperty.Global
public sealed record EncounterStaticShadow(GameVersion Version, byte ID, short Gauge, TeamLock[] Locks) : EncounterStatic(Version)
{
// ReSharper restore NotAccessedPositionalProperty.Global
public override int Generation => 3;
public override EntityContext Context => EntityContext.Gen3;
/// <summary>
/// Originates from the EReader scans (Japanese Only)
/// </summary>
public bool EReader => IVs.IsSpecified;
protected override bool IsMatchLocation(PKM pk)
{
if (pk.Format != 3)
return true; // transfer location verified later
var met = pk.Met_Location;
if (met == Location)
return true;
// XD can re-battle with Miror B
// Realgam Tower, Rock, Oasis, Cave, Pyrite Town
return Version == GameVersion.XD && met is (59 or 90 or 91 or 92 or 113);
}
protected override bool IsMatchLevel(PKM pk, EvoCriteria evo)
{
if (pk.Format != 3) // Met Level lost on PK3=>PK4
return Level <= evo.LevelMax;
return pk.Met_Level == Level;
}
protected override void ApplyDetails(ITrainerInfo tr, EncounterCriteria criteria, PKM pk)
{
base.ApplyDetails(tr, criteria, pk);
((IRibbonSetEvent3)pk).RibbonNational = true;
}
protected override void SetPINGA(PKM pk, EncounterCriteria criteria)
{
if (!EReader)
SetPINGA_Regular(pk, criteria);
else
SetPINGA_EReader(pk);
}
private void SetPINGA_Regular(PKM pk, EncounterCriteria criteria)
{
var pi = pk.PersonalInfo;
int gender = criteria.GetGender(-1, pi);
int nature = (int)criteria.GetNature(Nature.Random);
int ability = criteria.GetAbilityFromNumber(0);
// Ensure that any generated specimen has valid Shadow Locks
// This can be kinda slow, depending on how many locks / how strict they are.
// Cancel this operation if too many attempts are made to prevent infinite loops.
int ctr = 0;
const int max = 100_000;
do
{
PIDGenerator.SetRandomWildPID(pk, 3, nature, ability, gender, PIDType.CXD);
var pidiv = MethodFinder.Analyze(pk);
var result = LockFinder.IsAllShadowLockValid(this, pidiv, pk);
if (result)
break;
}
while (++ctr <= max);
#if DEBUG
System.Diagnostics.Debug.Assert(ctr < 100_000);
#endif
}
private void SetPINGA_EReader(PKM pk)
{
// E-Reader have all IVs == 0
for (int i = 0; i < 6; i++)
pk.SetIV(i, 0);
// All E-Reader shadows are actually nature/gender locked.
var locked = Locks[0].Locks[^1];
var (nature, gender) = locked.GetLock;
// Ensure that any generated specimen has valid Shadow Locks
// This can be kinda slow, depending on how many locks / how strict they are.
// Cancel this operation if too many attempts are made to prevent infinite loops.
int ctr = 0;
const int max = 100_000;
do
{
var seed = Util.Rand32();
PIDGenerator.SetValuesFromSeedXDRNG_EReader(pk, seed);
if (pk.Nature != nature || pk.Gender != gender)
continue;
var pidiv = new PIDIV(PIDType.CXD, seed);
var result = LockFinder.IsAllShadowLockValid(this, pidiv, pk);
if (result)
break;
}
while (++ctr <= max);
#if DEBUG
System.Diagnostics.Debug.Assert(ctr < 100_000);
#endif
}
}