public static IEnumerable <EncounterEgg> GenerateEggs(PKM pkm, IReadOnlyList <EvoCriteria> chain, bool all = false)
{
int species = pkm.Species;
if (NoHatchFromEgg.Contains(species))
{
yield break;
}
int gen = pkm.GenNumber;
if (gen <= 1)
{
yield break; // can't get eggs
}
if (NoHatchFromEggForm(species, pkm.AltForm, gen))
{
yield break; // can't originate from eggs
}
// version is a true indicator for all generation 3-5 origins
var ver = (GameVersion)pkm.Version;
int lvl = gen <= 3 ? 5 : 1;
int max = GetMaxSpeciesOrigin(gen);
var e = EvoBase.GetBaseSpecies(chain, 0);
if (e.Species <= max && !NoHatchFromEggFormGen(e.Species, e.Form, ver))
{
yield return(new EncounterEgg(e.Species, e.Form, lvl, gen, ver));
if (gen > 5 && (pkm.WasTradedEgg || all) && HasOtherGamePair(ver))
{
yield return(new EncounterEgg(e.Species, e.Form, lvl, gen, GetOtherTradePair(ver)));
}
}
if (!GetSplitBreedGeneration(gen).Contains(species))
{
yield break; // no other possible species
}
var o = EvoBase.GetBaseSpecies(chain, 1);
if (o.Species == e.Species)
{
yield break;
}
if (o.Species <= max && !NoHatchFromEggFormGen(o.Species, o.Form, ver))
{
yield return(new EncounterEggSplit(o.Species, o.Form, lvl, gen, ver, e.Species));
if (gen > 5 && (pkm.WasTradedEgg || all) && HasOtherGamePair(ver))
{
yield return(new EncounterEggSplit(o.Species, o.Form, lvl, gen, GetOtherTradePair(ver), e.Species));
}
}
}
public static IEnumerable <EncounterEgg> GenerateEggs(PKM pkm, IReadOnlyList <EvoCriteria> chain, int generation, bool all = false)
{
System.Diagnostics.Debug.Assert(generation >= 3); // if generating Gen2 eggs, use the other generator.
int species = pkm.Species;
if (!Breeding.CanHatchAsEgg(species))
{
yield break;
}
if (!Breeding.CanHatchAsEgg(species, pkm.Form, generation))
{
yield break; // can't originate from eggs
}
// version is a true indicator for all generation 3-5 origins
var ver = (GameVersion)pkm.Version;
if (!Breeding.CanGameGenerateEggs(ver))
{
yield break;
}
int lvl = generation <= 3 ? 5 : 1;
int max = GetMaxSpeciesOrigin(generation);
var e = EvoBase.GetBaseSpecies(chain, 0);
if (e.Species <= max && Breeding.CanHatchAsEgg(e.Species, e.Form, ver))
{
yield return(new EncounterEgg(e.Species, e.Form, lvl, generation, ver));
if (generation > 5 && (pkm.WasTradedEgg || all) && HasOtherGamePair(ver))
{
yield return(new EncounterEgg(e.Species, e.Form, lvl, generation, GetOtherTradePair(ver)));
}
}
if (!Breeding.GetSplitBreedGeneration(generation).Contains(species))
{
yield break; // no other possible species
}
var o = EvoBase.GetBaseSpecies(chain, 1);
if (o.Species == e.Species)
{
yield break;
}
if (o.Species <= max && Breeding.CanHatchAsEgg(o.Species, o.Form, ver))
{
yield return(new EncounterEgg(o.Species, o.Form, lvl, generation, ver));
if (generation > 5 && (pkm.WasTradedEgg || all) && HasOtherGamePair(ver))
{
yield return(new EncounterEgg(o.Species, o.Form, lvl, generation, GetOtherTradePair(ver)));
}
}
}
private static IEnumerable <IEncounterable> GetEncounters12(PKM pkm, LegalInfo info)
{
int baseSpecies = EvoBase.GetBaseSpecies(pkm).Species;
if ((pkm.Format == 1 && baseSpecies > MaxSpeciesID_1) || baseSpecies > MaxSpeciesID_2)
{
yield break;
}
foreach (var z in GenerateFilteredEncounters12(pkm))
{
info.Generation = z.Generation;
info.Game = z.Version;
yield return(z);
}
}
private static bool IsEvolutionValid(PKM pkm, int minSpecies = -1, int minLevel = -1)
{
var curr = EvolutionChain.GetValidPreEvolutions(pkm, minLevel: minLevel);
var min = curr.FindLast(z => z.Species == minSpecies);
if (min != null && min.Level < minLevel)
{
return(false);
}
var poss = EvolutionChain.GetValidPreEvolutions(pkm, maxLevel: 100, minLevel: minLevel, skipChecks: true);
if (minSpecies != -1)
{
int last = poss.FindLastIndex(z => z.Species == minSpecies);
return(curr.Count >= last);
}
int gen = pkm.GenNumber;
if (gen >= 3 && GetSplitBreedGeneration(gen).Contains(EvoBase.GetBaseSpecies(poss, 1).Species))
{
return(curr.Count >= poss.Count - 1);
}
return(curr.Count >= poss.Count);
}
private static IEnumerable <IEncounterable> GenerateRawEncounters12(PKM pkm, GameVersion game)
{
bool gsc = GameVersion.GSC.Contains(game);
// Since encounter matching is super weak due to limited stored data in the structure
// Calculate all 3 at the same time and pick the best result (by species).
// Favor special event move gifts as Static Encounters when applicable
var maxspeciesorigin = gsc ? MaxSpeciesID_2 : MaxSpeciesID_1;
var vs = EvolutionChain.GetValidPreEvolutions(pkm, maxspeciesorigin: maxspeciesorigin);
var deferred = new List <IEncounterable>();
foreach (var t in GetValidEncounterTrades(pkm, vs, game))
{
// some OTs are longer than the keyboard entry; don't defer these
if (pkm.Format >= 7 && pkm.OT_Name.Length <= (pkm.Japanese || pkm.Korean ? 5 : 7))
{
deferred.Add(t);
continue;
}
yield return(t);
}
foreach (var s in GetValidStaticEncounter(pkm, vs, game))
{
// Valid stadium and non-stadium encounters, return only non-stadium encounters, they are less restrictive
switch (s.Version)
{
case GameVersion.Stadium:
case GameVersion.Stadium2:
deferred.Add(s);
continue;
case GameVersion.EventsGBGen2:
if (!s.EggEncounter && !pkm.HasOriginalMetLocation)
{
continue;
}
if (pkm.Japanese)
{
deferred.Add(s);
}
continue;
case GameVersion.C when gsc && pkm.Format == 2: // Crystal specific data needs to be present
if (!s.EggEncounter && !pkm.HasOriginalMetLocation)
{
continue;
}
if (s.Species == 251 && ParseSettings.AllowGBCartEra) // no celebi, the GameVersion.EventsGBGen2 will pass thru
{
continue;
}
break;
}
yield return(s);
}
foreach (var e in GetValidWildEncounters12(pkm, vs, game))
{
yield return(e);
}
if (gsc)
{
var canBeEgg = GetCanBeEgg(pkm);
if (canBeEgg)
{
int species = EvoBase.GetBaseSpecies(pkm, generation: pkm.Format == 1 ? 2 : -1, maxSpeciesOrigin: MaxSpeciesID_2).Species;
if (ParseSettings.AllowGen2Crystal(pkm))
{
yield return(new EncounterEgg(species, 0, 5, 2, GameVersion.C)); // gen2 egg
}
yield return(new EncounterEgg(species, 0, 5, 2, GameVersion.GS)); // gen2 egg
}
}
foreach (var d in deferred)
{
yield return(d);
}
}