PKHeX/PKHeX.Core/Legality/Areas/EncounterArea3XD.cs
Kurt 103aa9aa4b
Revise EncounterArea and EncounterType for clarity (#3228)
EncounterArea now stores a more specific type'd array for encounter slots. Better iteration and less casting, as the nonspecific `Slots` fetch is rarely referenced.

EncounterType renamed to GroundTile to reflect how it actually works in Gen4. Was previously an ambiguous field that was clarified a little; we can describe it a little better now. Keep the GUI the same to not scare the end users.

Change Trash Byte properties to get/set a Span. Trash Byte legality checking easier on the garbage collector?
2021-06-29 20:58:06 -07:00

77 lines
2.4 KiB
C#

using System;
using System.Collections.Generic;
namespace PKHeX.Core
{
/// <inheritdoc cref="EncounterArea" />
/// <summary>
/// <see cref="GameVersion.XD"/> encounter area
/// </summary>
public sealed record EncounterArea3XD : EncounterArea
{
public readonly EncounterSlot3PokeSpot[] Slots;
protected override IReadOnlyList<EncounterSlot> Raw => Slots;
public EncounterArea3XD(int loc, int s0, int l0, int s1, int l1, int s2, int l2) : base(GameVersion.XD)
{
Location = loc;
Type = SlotType.Grass;
Slots = new[]
{
new EncounterSlot3PokeSpot(this, s0, 10, l0, 0),
new EncounterSlot3PokeSpot(this, s1, 10, l1, 1),
new EncounterSlot3PokeSpot(this, s2, 10, l2, 2),
};
}
public override IEnumerable<EncounterSlot> GetMatchingSlots(PKM pkm, IReadOnlyList<EvoCriteria> chain)
{
if (pkm.Format != 3) // Met Location and Met Level are changed on PK3->PK4
return GetSlotsFuzzy(chain);
if (pkm.Met_Location != Location)
return Array.Empty<EncounterSlot3PokeSpot>();
return GetSlotsMatching(chain, pkm.Met_Level);
}
private IEnumerable<EncounterSlot3PokeSpot> GetSlotsMatching(IReadOnlyList<EvoCriteria> chain, int lvl)
{
foreach (var slot in Slots)
{
foreach (var evo in chain)
{
if (slot.Species != evo.Species)
continue;
if (slot.Form != evo.Form)
break;
if (!slot.IsLevelWithinRange(lvl))
break;
yield return slot;
break;
}
}
}
private IEnumerable<EncounterSlot3PokeSpot> GetSlotsFuzzy(IReadOnlyList<EvoCriteria> chain)
{
foreach (var slot in Slots)
{
foreach (var evo in chain)
{
if (slot.Species != evo.Species)
continue;
if (slot.Form != evo.Form)
break;
if (slot.LevelMin > evo.Level)
break;
yield return slot;
break;
}
}
}
}
}