public static EncounterTable LoadOrGet(int id)
{
string name = _ids[id];
if (name is null)
{
throw new ArgumentOutOfRangeException(nameof(id));
}
EncounterTable e;
if (!_loadedEncounterTables.ContainsKey(id))
{
e = new EncounterTable(name);
_loadedEncounterTables.Add(id, new WeakReference <EncounterTable>(e));
return(e);
}
WeakReference <EncounterTable> w = _loadedEncounterTables[id];
if (w.TryGetTarget(out e))
{
return(e);
}
e = new EncounterTable(name);
w.SetTarget(e);
return(e);
}
private static EncounterTable.Encounter RollEncounter(EncounterTable tbl, ushort combinedChance)
{
int r = PBEUtils.GlobalRandom.RandomInt(1, combinedChance);
int sum = 0;
foreach (EncounterTable.Encounter encounter in tbl.Encounters)
{
sum += encounter.Chance;
if (r <= sum)
{
return(encounter);
}
}
throw new Exception("Miscalculation with encounter table data");
}
// TODO: Biking lowers the rate by 20% according to gen 3, running does not affect (according to gen 3, maybe it does after)
public static bool CheckForWildBattle(bool ignoreAbilityOrItem)
{
PlayerObj player = PlayerObj.Player;
Map.Layout.Block block = player.GetBlock(out Map map);
EncounterType t;
switch (block.BlocksetBlock.Behavior)
{
case BlocksetBlockBehavior.AllowElevationChange_Cave_Encounter:
case BlocksetBlockBehavior.Cave_Encounter:
case BlocksetBlockBehavior.Grass_Encounter: t = EncounterType.Default; break;
case BlocksetBlockBehavior.Grass_SpecialEncounter: t = EncounterType.DarkGrass; break;
case BlocksetBlockBehavior.Surf: t = EncounterType.Surf; break;
default: return(false);
}
EncounterTable tbl = map.Encounters.GetEncounterTable(t);
if (tbl is null)
{
return(false);
}
int chance = tbl.ChanceOfPhenomenon;
// Some abilities affect the wild encounter rate
// This is an option because some encounters (like rock smash) do not use the ability to modify the rate
if (!ignoreAbilityOrItem)
{
PartyPokemon pkmn = Game.Instance.Save.PlayerParty[0];
PBEAbility abilityOfFirstInParty = pkmn.Ability;
PBEItem itemOfFirstInParty = pkmn.Item;
// TODO: CompoundEyes
// TODO: CuteCharm
// TODO: Hustle, Pressure, VitalSpirit
// TODO: Intimidate, KeenEye
// TODO: MagnetPull, Static
// TODO: SandVeil, SnowCloak
// TODO: StickyHold, SuctionCups
// TODO: Synchronize
switch (abilityOfFirstInParty)
{
case PBEAbility.ArenaTrap:
case PBEAbility.Illuminate:
case PBEAbility.NoGuard: chance *= 2; break;
case PBEAbility.QuickFeet:
case PBEAbility.Stench:
case PBEAbility.WhiteSmoke: chance /= 2; break;
}
switch (itemOfFirstInParty)
{
case PBEItem.CleanseTag: chance = chance * 2 / 3; break; // Reduce by 1/3
}
}
if (!PBEUtils.GlobalRandom.RandomBool(chance, byte.MaxValue))
{
return(false);
}
ushort combinedChance = tbl.GetCombinedChance();
if (combinedChance == 0)
{
return(false);
}
EncounterTable.Encounter encounter0 = RollEncounter(tbl, combinedChance);
Game.Instance.TempCreateWildBattle(map, block, encounter0);
return(true);
}
public EncounterGroup(EndianBinaryReader r)
{
Type = r.ReadEnum <EncounterType>();
Table = EncounterTable.LoadOrGet(r.ReadInt32());
}
