PKHeX/PKHeX.Core/Legality/Verifiers/EffortValueVerifier.cs
Kurt 965039e258 Misc tweaks, fix slot8b ball
Fix Slot8b fallback ball not being Poké (was 0).

Swap eevee & none move sentinels; branch-if-zero easier for compiler.

Lift EV-any-above100 to be checked first; fetching personal and getting EXP is slower than checking 6 indexes in stack. Both branches would check. Most pokemon won't have EVs >100 as users flip through boxes in gen3/4.
2023-10-02 20:54:17 -07:00

72 lines
2.7 KiB
C#

using System;
using static PKHeX.Core.LegalityCheckStrings;
namespace PKHeX.Core;
/// <summary>
/// Verifies the <see cref="EffortValues"/>.
/// </summary>
public sealed class EffortValueVerifier : Verifier
{
protected override CheckIdentifier Identifier => CheckIdentifier.EVs;
private const int totalMax = 510; // Total Max
private const int vitaMax = 100; // Vitamin Max for consideration in Gen3 & Gen4.
public override void Verify(LegalityAnalysis data)
{
var pk = data.Entity;
if (pk.IsEgg)
{
if (pk.EVTotal is not 0)
data.AddLine(GetInvalid(LEffortEgg));
return;
}
// In Generations I and II, when a Pokémon is taken out of the Day Care, its experience will lower to the minimum value for its current level.
int format = pk.Format;
if (format < 3) // can abuse daycare for EV training without EXP gain
return;
int sum = pk.EVTotal;
if (sum > totalMax) // format >= 3
data.AddLine(GetInvalid(LEffortAbove510));
var enc = data.EncounterMatch;
Span<int> evs = stackalloc int[6];
pk.GetEVs(evs);
if (format >= 6 && evs.IndexOfAny(253, 254, 255) != -1)
data.AddLine(GetInvalid(LEffortAbove252));
else if (format < 5) // 3/4
VerifyGainedEVs34(data, enc, evs, pk);
// Only one of the following can be true: 0, 508, and x%6!=0
if (sum == 0 && !enc.IsWithinEncounterRange(pk))
data.AddLine(Get(LEffortEXPIncreased, Severity.Fishy));
else if (sum == EffortValues.MaxEffective)
data.AddLine(Get(LEffort2Remaining, Severity.Fishy));
else if (evs[0] != 0 && evs.IndexOfAnyExcept(evs[0]) == -1)
data.AddLine(Get(LEffortAllEqual, Severity.Fishy));
}
private void VerifyGainedEVs34(LegalityAnalysis data, IEncounterTemplate enc, Span<int> evs, PKM pk)
{
bool anyAbove100 = evs.Find(static ev => ev > vitaMax) != default;
if (!anyAbove100)
return;
if (enc.LevelMin == 100) // only true for Gen4 and Format=4
{
// Cannot EV train at level 100 -- Certain events are distributed at level 100.
// EVs can only be increased by vitamins to a max of 100.
data.AddLine(GetInvalid(LEffortCap100));
}
else // Check for gained EVs without gaining EXP -- don't check gen5+ which have wings to boost above 100.
{
var growth = PersonalTable.HGSS[enc.Species].EXPGrowth;
var baseEXP = Experience.GetEXP(enc.LevelMin, growth);
if (baseEXP == pk.EXP)
data.AddLine(GetInvalid(string.Format(LEffortUntrainedCap, vitaMax)));
}
}
}