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)));
}
}
}
public static IEnumerable <EncounterEgg> GenerateEggs(PKM pkm, IReadOnlyList <EvoCriteria> chain, bool all = false)
{
int species = pkm.Species;
if (!Breeding.CanHatchAsEgg(species))
{
yield break;
}
var canBeEgg = all || GetCanBeEgg(pkm);
if (!canBeEgg)
{
yield break;
}
// Gen2 was before split-breed species existed; try to ensure that the egg we try and match to can actually originate in the game.
// Species must be < 251
// Form must be 0 (Unown cannot breed).
var baseID = chain[^ 1];
public static IEnumerable <EncounterEgg> GenerateEggs(PKM pkm, IReadOnlyList <EvoCriteria> chain, bool all = false)
{
int species = pkm.Species;
if (!Breeding.CanHatchAsEgg(species))
{
yield break;
}
var canBeEgg = all || GetCanBeEgg(pkm);
if (!canBeEgg)
{
yield break;
}
// Gen2 was before split-breed species existed; try to ensure that the egg we try and match to can actually originate in the game.
// Species must be < 251
// Form must be 0 (Unown cannot breed).
var baseID = chain[chain.Count - 1];
if ((baseID.Species >= Legal.MaxSpeciesID_2 || baseID.Form != 0) && chain.Count != 1)
{
baseID = chain[chain.Count - 2];
}
if (baseID.Form != 0)
{
yield break; // Forms don't exist in Gen2, besides Unown (which can't breed). Nothing can form-change.
}
species = baseID.Species;
if (species > Legal.MaxSpeciesID_2)
{
yield break;
}
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
}
public static IEnumerable <EncounterEgg> GenerateEggs(PKM pkm, EvoCriteria[] chain, int generation, bool all = false)
{
System.Diagnostics.Debug.Assert(generation >= 3); // if generating Gen2 eggs, use the other generator.
int currentSpecies = pkm.Species;
if (!Breeding.CanHatchAsEgg(currentSpecies))
{
yield break;
}
var currentForm = pkm.Form;
if (!Breeding.CanHatchAsEgg(currentSpecies, currentForm, 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;
}
var lvl = EggStateLegality.GetEggLevel(generation);
int max = GetMaxSpeciesOrigin(generation);
var(species, form) = GetBaseSpecies(chain, 0);
if ((uint)species <= max)
{
// NOTE: THE SPLIT-BREED SECTION OF CODE SHOULD BE EXACTLY THE SAME AS THE BELOW SECTION
if (FormInfo.IsBattleOnlyForm(species, form, generation))
{
form = FormInfo.GetOutOfBattleForm(species, form, generation);
}
if (Breeding.CanHatchAsEgg(species, form, ver))
{
yield return(new EncounterEgg(species, form, lvl, generation, ver));
if (generation > 5 && (pkm.WasTradedEgg || all) && HasOtherGamePair(ver))
{
yield return(new EncounterEgg(species, form, lvl, generation, GetOtherTradePair(ver)));
}
}
}
if (!Breeding.GetSplitBreedGeneration(generation).Contains(currentSpecies))
{
yield break; // no other possible species
}
var otherSplit = species;
(species, form) = GetBaseSpecies(chain, 1);
if ((uint)species == otherSplit)
{
yield break;
}
if (species <= max)
{
// NOTE: THIS SECTION OF CODE SHOULD BE EXACTLY THE SAME AS THE ABOVE SECTION
if (FormInfo.IsBattleOnlyForm(species, form, generation))
{
form = FormInfo.GetOutOfBattleForm(species, form, generation);
}
if (Breeding.CanHatchAsEgg(species, form, ver))
{
yield return(new EncounterEgg(species, form, lvl, generation, ver));
if (generation > 5 && (pkm.WasTradedEgg || all) && HasOtherGamePair(ver))
{
yield return(new EncounterEgg(species, form, lvl, generation, GetOtherTradePair(ver)));
}
}
}
}