private static PBETurnAction DecideAction(PBETrainer trainer, PBEBattlePokemon user, IEnumerable <PBETurnAction> actions, IEnumerable <PBEBattlePokemon> standBy)
{
// Gather all options of switching and moves
PBEMove[] usableMoves = user.GetUsableMoves();
var possibleActions = new List <(PBETurnAction Action, double Score)>();
for (int m = 0; m < usableMoves.Length; m++) // Score moves
{
PBEMove move = usableMoves[m];
PBEType moveType = user.GetMoveType(move);
PBEMoveTarget moveTargets = user.GetMoveTargets(move);
PBETurnTarget[] possibleTargets = PBEDataUtils.IsSpreadMove(moveTargets)
? new PBETurnTarget[] { PBEBattleUtils.GetSpreadMoveTargets(user, moveTargets) }
: PBEBattleUtils.GetPossibleTargets(user, moveTargets);
foreach (PBETurnTarget possibleTarget in possibleTargets)
{
// TODO: RandomFoeSurrounding (probably just account for the specific effects that use this target type)
// TODO: Don't queue up to do the same thing (two trying to afflict the same target when there are multiple targets)
var targets = new List <PBEBattlePokemon>();
if (possibleTarget.HasFlag(PBETurnTarget.AllyLeft))
{
targets.Add(trainer.TryGetPokemon(PBEFieldPosition.Left));
}
if (possibleTarget.HasFlag(PBETurnTarget.AllyCenter))
{
targets.Add(trainer.TryGetPokemon(PBEFieldPosition.Center));
}
if (possibleTarget.HasFlag(PBETurnTarget.AllyRight))
{
targets.Add(trainer.TryGetPokemon(PBEFieldPosition.Right));
}
if (possibleTarget.HasFlag(PBETurnTarget.FoeLeft))
{
targets.Add(trainer.Team.OpposingTeam.TryGetPokemon(PBEFieldPosition.Left));
}
if (possibleTarget.HasFlag(PBETurnTarget.FoeCenter))
{
targets.Add(trainer.Team.OpposingTeam.TryGetPokemon(PBEFieldPosition.Center));
}
if (possibleTarget.HasFlag(PBETurnTarget.FoeRight))
{
targets.Add(trainer.Team.OpposingTeam.TryGetPokemon(PBEFieldPosition.Right));
}
double score;
if (targets.All(p => p == null))
{
score = -100;
}
else
{
score = 0;
targets.RemoveAll(p => p == null);
IPBEMoveData mData = PBEDataProvider.Instance.GetMoveData(move);
if (!mData.IsMoveUsable())
{
throw new ArgumentOutOfRangeException(nameof(trainer), $"{move} is not yet implemented in Pokémon Battle Engine.");
}
switch (mData.Effect)
{
case PBEMoveEffect.Acrobatics:
case PBEMoveEffect.Bounce:
case PBEMoveEffect.BrickBreak:
case PBEMoveEffect.Brine:
case PBEMoveEffect.ChipAway:
case PBEMoveEffect.CrushGrip:
case PBEMoveEffect.Dig:
case PBEMoveEffect.Dive:
case PBEMoveEffect.Eruption:
case PBEMoveEffect.Facade:
case PBEMoveEffect.Feint:
case PBEMoveEffect.Flail:
case PBEMoveEffect.Fly:
case PBEMoveEffect.FoulPlay:
case PBEMoveEffect.Frustration:
case PBEMoveEffect.GrassKnot:
case PBEMoveEffect.HeatCrash:
case PBEMoveEffect.Hex:
case PBEMoveEffect.HiddenPower:
case PBEMoveEffect.Hit:
case PBEMoveEffect.Hit__2Times:
case PBEMoveEffect.Hit__2Times__MaybePoison:
case PBEMoveEffect.Hit__2To5Times:
case PBEMoveEffect.Hit__MaybeBurn:
case PBEMoveEffect.Hit__MaybeBurn__10PercentFlinch:
case PBEMoveEffect.Hit__MaybeBurnFreezeParalyze:
case PBEMoveEffect.Hit__MaybeConfuse:
case PBEMoveEffect.Hit__MaybeFlinch:
case PBEMoveEffect.Hit__MaybeFreeze:
case PBEMoveEffect.Hit__MaybeFreeze__10PercentFlinch:
case PBEMoveEffect.Hit__MaybeLowerTarget_ACC_By1:
case PBEMoveEffect.Hit__MaybeLowerTarget_ATK_By1:
case PBEMoveEffect.Hit__MaybeLowerTarget_DEF_By1:
case PBEMoveEffect.Hit__MaybeLowerTarget_SPATK_By1:
case PBEMoveEffect.Hit__MaybeLowerTarget_SPDEF_By1:
case PBEMoveEffect.Hit__MaybeLowerTarget_SPDEF_By2:
case PBEMoveEffect.Hit__MaybeLowerTarget_SPE_By1:
case PBEMoveEffect.Hit__MaybeLowerUser_ATK_DEF_By1:
case PBEMoveEffect.Hit__MaybeLowerUser_DEF_SPDEF_By1:
case PBEMoveEffect.Hit__MaybeLowerUser_SPATK_By2:
case PBEMoveEffect.Hit__MaybeLowerUser_SPE_By1:
case PBEMoveEffect.Hit__MaybeLowerUser_SPE_DEF_SPDEF_By1:
case PBEMoveEffect.Hit__MaybeParalyze:
case PBEMoveEffect.Hit__MaybeParalyze__10PercentFlinch:
case PBEMoveEffect.Hit__MaybePoison:
case PBEMoveEffect.Hit__MaybeRaiseUser_ATK_By1:
case PBEMoveEffect.Hit__MaybeRaiseUser_ATK_DEF_SPATK_SPDEF_SPE_By1:
case PBEMoveEffect.Hit__MaybeRaiseUser_DEF_By1:
case PBEMoveEffect.Hit__MaybeRaiseUser_SPATK_By1:
case PBEMoveEffect.Hit__MaybeRaiseUser_SPE_By1:
case PBEMoveEffect.Hit__MaybeToxic:
case PBEMoveEffect.HPDrain:
case PBEMoveEffect.Judgment:
case PBEMoveEffect.Magnitude:
case PBEMoveEffect.Payback:
case PBEMoveEffect.PayDay:
case PBEMoveEffect.Psyshock:
case PBEMoveEffect.Punishment:
case PBEMoveEffect.Recoil:
case PBEMoveEffect.Recoil__10PercentBurn:
case PBEMoveEffect.Recoil__10PercentParalyze:
case PBEMoveEffect.Retaliate:
case PBEMoveEffect.Return:
case PBEMoveEffect.SecretPower:
case PBEMoveEffect.ShadowForce:
case PBEMoveEffect.SmellingSalt:
case PBEMoveEffect.StoredPower:
case PBEMoveEffect.TechnoBlast:
case PBEMoveEffect.Venoshock:
case PBEMoveEffect.WakeUpSlap:
case PBEMoveEffect.WeatherBall:
{
foreach (PBEBattlePokemon target in targets)
{
// TODO: Favor hitting ally with move if waterabsorb/voltabsorb etc
// TODO: Liquid ooze
// TODO: Check items
// TODO: Stat changes and accuracy (even thunder/guillotine accuracy)
// TODO: Check base power specifically against hp remaining (include spread move damage reduction)
PBETypeEffectiveness.IsAffectedByAttack(user, target, moveType, out double damageMultiplier, useKnownInfo: true);
if (damageMultiplier <= 0) // (-infinity, 0.0] Ineffective
{
score += target.Team == trainer.Team ? 0 : -60;
}
else if (damageMultiplier <= 0.25) // (0.0, 0.25] NotVeryEffective
{
score += target.Team == trainer.Team ? -5 : -30;
}
else if (damageMultiplier < 1) // (0.25, 1.0) NotVeryEffective
{
score += target.Team == trainer.Team ? -10 : -10;
}
else if (damageMultiplier == 1) // [1.0, 1.0] Normal
{
score += target.Team == trainer.Team ? -15 : +10;
}
else if (damageMultiplier < 4) // (1.0, 4.0) SuperEffective
{
score += target.Team == trainer.Team ? -20 : +25;
}
else // [4.0, infinity) SuperEffective
{
score += target.Team == trainer.Team ? -30 : +40;
}
if (user.ReceivesSTAB(moveType) && damageMultiplier > 0)
{
score += (user.Ability == PBEAbility.Adaptability ? 7 : 5) * (target.Team == trainer.Team ? -1 : +1);
}
}
break;
}
case PBEMoveEffect.Attract:
{
foreach (PBEBattlePokemon target in targets)
{
// TODO: Destiny knot
if (target.IsAttractionPossible(user, useKnownInfo: true) == PBEResult.Success)
{
score += target.Team == trainer.Team ? -20 : +40;
}
else
{
score += target.Team == trainer.Team ? 0 : -60;
}
}
break;
}
case PBEMoveEffect.Burn:
{
foreach (PBEBattlePokemon target in targets)
{
// TODO: Heatproof, physical attacker
if (target.IsBurnPossible(user, useKnownInfo: true) == PBEResult.Success)
{
score += target.Team == trainer.Team ? -20 : +40;
}
else
{
score += target.Team == trainer.Team ? 0 : -60;
}
}
break;
}
case PBEMoveEffect.ChangeTarget_ACC:
{
foreach (PBEBattlePokemon target in targets)
{
ScoreStatChange(user, target, PBEStat.Accuracy, mData.EffectParam, ref score);
}
break;
}
case PBEMoveEffect.ChangeTarget_ATK:
{
foreach (PBEBattlePokemon target in targets)
{
ScoreStatChange(user, target, PBEStat.Attack, mData.EffectParam, ref score);
}
break;
}
case PBEMoveEffect.ChangeTarget_DEF:
{
foreach (PBEBattlePokemon target in targets)
{
ScoreStatChange(user, target, PBEStat.Defense, mData.EffectParam, ref score);
}
break;
}
case PBEMoveEffect.ChangeTarget_EVA:
case PBEMoveEffect.Minimize:
{
foreach (PBEBattlePokemon target in targets)
{
ScoreStatChange(user, target, PBEStat.Evasion, mData.EffectParam, ref score);
}
break;
}
case PBEMoveEffect.ChangeTarget_SPATK:
{
foreach (PBEBattlePokemon target in targets)
{
ScoreStatChange(user, target, PBEStat.SpAttack, mData.EffectParam, ref score);
}
break;
}
case PBEMoveEffect.ChangeTarget_SPDEF:
{
foreach (PBEBattlePokemon target in targets)
{
ScoreStatChange(user, target, PBEStat.SpDefense, mData.EffectParam, ref score);
}
break;
}
case PBEMoveEffect.ChangeTarget_SPE:
{
foreach (PBEBattlePokemon target in targets)
{
ScoreStatChange(user, target, PBEStat.Speed, mData.EffectParam, ref score);
}
break;
}
case PBEMoveEffect.Confuse:
case PBEMoveEffect.Flatter:
case PBEMoveEffect.Swagger:
{
foreach (PBEBattlePokemon target in targets)
{
// TODO: Only swagger/flatter if the opponent most likely won't use it against you
if (target.IsConfusionPossible(user, useKnownInfo: true) == PBEResult.Success)
{
score += target.Team == trainer.Team ? -20 : +40;
}
else
{
score += target.Team == trainer.Team ? 0 : -60;
}
}
break;
}
case PBEMoveEffect.Growth:
{
int change = trainer.Battle.WillLeafGuardActivate() ? +2 : +1;
foreach (PBEBattlePokemon target in targets)
{
ScoreStatChange(user, target, PBEStat.Attack, change, ref score);
ScoreStatChange(user, target, PBEStat.SpAttack, change, ref score);
}
break;
}
case PBEMoveEffect.LeechSeed:
{
foreach (PBEBattlePokemon target in targets)
{
if (target.IsLeechSeedPossible(useKnownInfo: true) == PBEResult.Success)
{
score += target.Team == trainer.Team ? -20 : +40;
}
else
{
score += target.Team == trainer.Team ? 0 : -60;
}
}
break;
}
case PBEMoveEffect.LightScreen:
{
score += trainer.Team.TeamStatus.HasFlag(PBETeamStatus.LightScreen) || IsTeammateUsingEffect(actions, PBEMoveEffect.LightScreen) ? -100 : +40;
break;
}
case PBEMoveEffect.LowerTarget_ATK_DEF_By1:
{
foreach (PBEBattlePokemon target in targets)
{
ScoreStatChange(user, target, PBEStat.Attack, -1, ref score);
ScoreStatChange(user, target, PBEStat.Defense, -1, ref score);
}
break;
}
case PBEMoveEffect.LowerTarget_DEF_SPDEF_By1_Raise_ATK_SPATK_SPE_By2:
{
foreach (PBEBattlePokemon target in targets)
{
ScoreStatChange(user, target, PBEStat.Defense, -1, ref score);
ScoreStatChange(user, target, PBEStat.SpDefense, -1, ref score);
ScoreStatChange(user, target, PBEStat.Attack, +2, ref score);
ScoreStatChange(user, target, PBEStat.SpAttack, +2, ref score);
ScoreStatChange(user, target, PBEStat.Speed, +2, ref score);
}
break;
}
case PBEMoveEffect.LuckyChant:
{
score += trainer.Team.TeamStatus.HasFlag(PBETeamStatus.LuckyChant) || IsTeammateUsingEffect(actions, PBEMoveEffect.LuckyChant) ? -100 : +40;
break;
}
case PBEMoveEffect.Moonlight:
case PBEMoveEffect.Rest:
case PBEMoveEffect.RestoreTargetHP:
case PBEMoveEffect.Roost:
{
foreach (PBEBattlePokemon target in targets)
{
if (target.Team == trainer.Team)
{
score += HPAware(target.HPPercentage, +45, -15);
}
else
{
score -= 100;
}
}
break;
}
case PBEMoveEffect.Nothing:
case PBEMoveEffect.Teleport:
{
score -= 100;
break;
}
case PBEMoveEffect.Paralyze:
case PBEMoveEffect.ThunderWave:
{
foreach (PBEBattlePokemon target in targets)
{
bool tw = mData.Effect != PBEMoveEffect.ThunderWave || PBETypeEffectiveness.ThunderWaveTypeCheck(user, target, move, useKnownInfo: true) == PBEResult.Success;
if (tw && target.IsParalysisPossible(user, useKnownInfo: true) == PBEResult.Success)
{
score += target.Team == trainer.Team ? -20 : +40;
}
else
{
score += target.Team == trainer.Team ? 0 : -60;
}
}
break;
}
case PBEMoveEffect.Poison:
case PBEMoveEffect.Toxic:
{
foreach (PBEBattlePokemon target in targets)
{
// TODO: Poison Heal
if (target.IsPoisonPossible(user, useKnownInfo: true) == PBEResult.Success)
{
score += target.Team == trainer.Team ? -20 : +40;
}
else
{
score += target.Team == trainer.Team ? 0 : -60;
}
}
break;
}
case PBEMoveEffect.RaiseTarget_ATK_ACC_By1:
{
foreach (PBEBattlePokemon target in targets)
{
ScoreStatChange(user, target, PBEStat.Attack, +1, ref score);
ScoreStatChange(user, target, PBEStat.Accuracy, +1, ref score);
}
break;
}
case PBEMoveEffect.RaiseTarget_ATK_DEF_By1:
{
foreach (PBEBattlePokemon target in targets)
{
ScoreStatChange(user, target, PBEStat.Attack, +1, ref score);
ScoreStatChange(user, target, PBEStat.Defense, +1, ref score);
}
break;
}
case PBEMoveEffect.RaiseTarget_ATK_DEF_ACC_By1:
{
foreach (PBEBattlePokemon target in targets)
{
ScoreStatChange(user, target, PBEStat.Attack, +1, ref score);
ScoreStatChange(user, target, PBEStat.Defense, +1, ref score);
ScoreStatChange(user, target, PBEStat.Accuracy, +1, ref score);
}
break;
}
case PBEMoveEffect.RaiseTarget_ATK_SPATK_By1:
{
foreach (PBEBattlePokemon target in targets)
{
ScoreStatChange(user, target, PBEStat.Attack, +1, ref score);
ScoreStatChange(user, target, PBEStat.SpAttack, +1, ref score);
}
break;
}
case PBEMoveEffect.RaiseTarget_ATK_SPE_By1:
{
foreach (PBEBattlePokemon target in targets)
{
ScoreStatChange(user, target, PBEStat.Attack, +1, ref score);
ScoreStatChange(user, target, PBEStat.Speed, +1, ref score);
}
break;
}
case PBEMoveEffect.RaiseTarget_DEF_SPDEF_By1:
{
foreach (PBEBattlePokemon target in targets)
{
ScoreStatChange(user, target, PBEStat.Defense, +1, ref score);
ScoreStatChange(user, target, PBEStat.SpDefense, +1, ref score);
}
break;
}
case PBEMoveEffect.RaiseTarget_SPATK_SPDEF_By1:
{
foreach (PBEBattlePokemon target in targets)
{
ScoreStatChange(user, target, PBEStat.SpAttack, +1, ref score);
ScoreStatChange(user, target, PBEStat.SpDefense, +1, ref score);
}
break;
}
case PBEMoveEffect.RaiseTarget_SPATK_SPDEF_SPE_By1:
{
foreach (PBEBattlePokemon target in targets)
{
ScoreStatChange(user, target, PBEStat.SpAttack, +1, ref score);
ScoreStatChange(user, target, PBEStat.SpDefense, +1, ref score);
ScoreStatChange(user, target, PBEStat.Speed, +1, ref score);
}
break;
}
case PBEMoveEffect.RaiseTarget_SPE_By2_ATK_By1:
{
foreach (PBEBattlePokemon target in targets)
{
ScoreStatChange(user, target, PBEStat.Speed, +2, ref score);
ScoreStatChange(user, target, PBEStat.Attack, +1, ref score);
}
break;
}
case PBEMoveEffect.Reflect:
{
score += trainer.Team.TeamStatus.HasFlag(PBETeamStatus.Reflect) || IsTeammateUsingEffect(actions, PBEMoveEffect.Reflect) ? -100 : +40;
break;
}
case PBEMoveEffect.Safeguard:
{
score += trainer.Team.TeamStatus.HasFlag(PBETeamStatus.Safeguard) || IsTeammateUsingEffect(actions, PBEMoveEffect.Safeguard) ? -100 : +40;
break;
}
case PBEMoveEffect.Sleep:
{
foreach (PBEBattlePokemon target in targets)
{
// TODO: Bad Dreams
if (target.IsSleepPossible(user, useKnownInfo: true) == PBEResult.Success)
{
score += target.Team == trainer.Team ? -20 : +40;
}
else
{
score += target.Team == trainer.Team ? 0 : -60;
}
}
break;
}
case PBEMoveEffect.Substitute:
{
foreach (PBEBattlePokemon target in targets)
{
if (target.IsSubstitutePossible() == PBEResult.Success)
{
score += target.Team == trainer.Team ? HPAware(target.HPPercentage, -30, +50) : -60;
}
else
{
score += target.Team == trainer.Team ? 0 : -20;
}
}
break;
}
case PBEMoveEffect.BellyDrum:
case PBEMoveEffect.Camouflage:
case PBEMoveEffect.ChangeTarget_SPATK__IfAttractionPossible:
case PBEMoveEffect.Conversion:
case PBEMoveEffect.Curse:
case PBEMoveEffect.Endeavor:
case PBEMoveEffect.Entrainment:
case PBEMoveEffect.FinalGambit:
case PBEMoveEffect.FocusEnergy:
case PBEMoveEffect.Foresight:
case PBEMoveEffect.GastroAcid:
case PBEMoveEffect.Hail:
case PBEMoveEffect.Haze:
case PBEMoveEffect.HelpingHand:
case PBEMoveEffect.HPDrain__RequireSleep:
case PBEMoveEffect.LockOn:
case PBEMoveEffect.MagnetRise:
case PBEMoveEffect.Metronome:
case PBEMoveEffect.MiracleEye:
case PBEMoveEffect.Nightmare:
case PBEMoveEffect.OneHitKnockout:
case PBEMoveEffect.PainSplit:
case PBEMoveEffect.PowerTrick:
case PBEMoveEffect.Protect:
case PBEMoveEffect.PsychUp:
case PBEMoveEffect.Psywave:
case PBEMoveEffect.QuickGuard:
case PBEMoveEffect.RainDance:
case PBEMoveEffect.ReflectType:
case PBEMoveEffect.Refresh:
case PBEMoveEffect.RolePlay:
case PBEMoveEffect.Sandstorm:
case PBEMoveEffect.SeismicToss:
case PBEMoveEffect.Selfdestruct:
case PBEMoveEffect.SetDamage:
case PBEMoveEffect.SimpleBeam:
case PBEMoveEffect.Sketch:
case PBEMoveEffect.Snore:
case PBEMoveEffect.Soak:
case PBEMoveEffect.Spikes:
case PBEMoveEffect.StealthRock:
case PBEMoveEffect.SuckerPunch:
case PBEMoveEffect.SunnyDay:
case PBEMoveEffect.SuperFang:
case PBEMoveEffect.Tailwind:
case PBEMoveEffect.ToxicSpikes:
case PBEMoveEffect.Transform:
case PBEMoveEffect.TrickRoom:
case PBEMoveEffect.Whirlwind:
case PBEMoveEffect.WideGuard:
case PBEMoveEffect.WorrySeed:
{
// TODO
break;
}
default: throw new ArgumentOutOfRangeException(nameof(IPBEMoveData.Effect));
}
}
possibleActions.Add((new PBETurnAction(user, move, possibleTarget), score));
}
}
if (user.CanSwitchOut())
{
PBEBattlePokemon[] availableForSwitch = trainer.Party.Except(standBy).Where(p => p.FieldPosition == PBEFieldPosition.None && p.HP > 0).ToArray();
for (int s = 0; s < availableForSwitch.Length; s++) // Score switches
{
PBEBattlePokemon switchPkmn = availableForSwitch[s];
// TODO: Entry hazards
// TODO: Known moves of active battlers
// TODO: Type effectiveness
double score = -10d;
possibleActions.Add((new PBETurnAction(user, switchPkmn), score));
}
}
string ToDebugString((PBETurnAction Action, double Score) t)
{
string str = "{";
if (t.Action.Decision == PBETurnDecision.Fight)
{
str += string.Format("Fight {0} {1}", t.Action.FightMove, t.Action.FightTargets);
}
else
{
str += string.Format("Switch {0}", trainer.TryGetPokemon(t.Action.SwitchPokemonId).Nickname);
}
str += " [" + t.Score + "]}";
return(str);
}
IOrderedEnumerable <(PBETurnAction Action, double Score)> byScore = possibleActions.OrderByDescending(t => t.Score);
Debug.WriteLine("{0}'s possible actions: {1}", user.Nickname, byScore.Select(t => ToDebugString(t)).Print());
double bestScore = byScore.First().Score;
return(PBEDataProvider.GlobalRandom.RandomElement(byScore.Where(t => t.Score == bestScore).ToArray()).Action); // Pick random action of the ones that tied for best score
}