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battle-actions.ts
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import {Dex, toID} from './dex';
const CHOOSABLE_TARGETS = new Set(['normal', 'any', 'adjacentAlly', 'adjacentAllyOrSelf', 'anyAlly', 'adjacentFoe']);
export class BattleActions {
battle: Battle;
dex: ModdedDex;
readonly MAX_MOVES: {readonly [k: string]: string} = {
Flying: 'Max Airstream',
Dark: 'Max Darkness',
Fire: 'Max Flare',
Bug: 'Max Flutterby',
Water: 'Max Geyser',
Status: 'Max Guard',
Ice: 'Max Hailstorm',
Fighting: 'Max Knuckle',
Electric: 'Max Lightning',
Psychic: 'Max Mindstorm',
Poison: 'Max Ooze',
Grass: 'Max Overgrowth',
Ghost: 'Max Phantasm',
Ground: 'Max Quake',
Rock: 'Max Rockfall',
Fairy: 'Max Starfall',
Steel: 'Max Steelspike',
Normal: 'Max Strike',
Dragon: 'Max Wyrmwind',
};
readonly Z_MOVES: {readonly [k: string]: string} = {
Poison: "Acid Downpour",
Fighting: "All-Out Pummeling",
Dark: "Black Hole Eclipse",
Grass: "Bloom Doom",
Normal: "Breakneck Blitz",
Rock: "Continental Crush",
Steel: "Corkscrew Crash",
Dragon: "Devastating Drake",
Electric: "Gigavolt Havoc",
Water: "Hydro Vortex",
Fire: "Inferno Overdrive",
Ghost: "Never-Ending Nightmare",
Bug: "Savage Spin-Out",
Psychic: "Shattered Psyche",
Ice: "Subzero Slammer",
Flying: "Supersonic Skystrike",
Ground: "Tectonic Rage",
Fairy: "Twinkle Tackle",
};
constructor(battle: Battle) {
this.battle = battle;
this.dex = battle.dex;
if (this.dex.data.Scripts.actions) Object.assign(this, this.dex.data.Scripts.actions);
if (battle.format.actions) Object.assign(this, battle.format.actions);
}
// #region SWITCH
// ==================================================================
switchIn(pokemon: Pokemon, pos: number, sourceEffect: Effect | null = null, isDrag?: boolean) {
if (!pokemon || pokemon.isActive) {
this.battle.hint("A switch failed because the Pokémon trying to switch in is already in.");
return false;
}
const side = pokemon.side;
if (pos >= side.active.length) {
throw new Error(`Invalid switch position ${pos} / ${side.active.length}`);
}
const oldActive = side.active[pos];
const unfaintedActive = oldActive?.hp ? oldActive : null;
if (unfaintedActive) {
oldActive.beingCalledBack = true;
let switchCopyFlag: 'copyvolatile' | 'shedtail' | boolean = false;
if (sourceEffect && typeof (sourceEffect as Move).selfSwitch === 'string') {
switchCopyFlag = (sourceEffect as Move).selfSwitch!;
}
if (!oldActive.skipBeforeSwitchOutEventFlag && !isDrag) {
this.battle.runEvent('BeforeSwitchOut', oldActive);
if (this.battle.gen >= 5) {
this.battle.eachEvent('Update');
}
}
oldActive.skipBeforeSwitchOutEventFlag = false;
if (!this.battle.runEvent('SwitchOut', oldActive)) {
// Warning: DO NOT interrupt a switch-out if you just want to trap a pokemon.
// To trap a pokemon and prevent it from switching out, (e.g. Mean Look, Magnet Pull)
// use the 'trapped' flag instead.
// Note: Nothing in the real games can interrupt a switch-out (except Pursuit KOing,
// which is handled elsewhere); this is just for custom formats.
return false;
}
if (!oldActive.hp) {
// a pokemon fainted from Pursuit before it could switch
return 'pursuitfaint';
}
// will definitely switch out at this point
oldActive.illusion = null;
this.battle.singleEvent('End', oldActive.getAbility(), oldActive.abilityState, oldActive);
// if a pokemon is forced out by Whirlwind/etc or Eject Button/Pack, it can't use its chosen move
this.battle.queue.cancelAction(oldActive);
let newMove = null;
if (this.battle.gen === 4 && sourceEffect) {
newMove = oldActive.lastMove;
}
if (switchCopyFlag) {
pokemon.copyVolatileFrom(oldActive, switchCopyFlag);
}
if (newMove) pokemon.lastMove = newMove;
oldActive.clearVolatile();
}
if (oldActive) {
oldActive.isActive = false;
oldActive.isStarted = false;
oldActive.usedItemThisTurn = false;
oldActive.statsRaisedThisTurn = false;
oldActive.statsLoweredThisTurn = false;
oldActive.position = pokemon.position;
pokemon.position = pos;
side.pokemon[pokemon.position] = pokemon;
side.pokemon[oldActive.position] = oldActive;
}
pokemon.isActive = true;
side.active[pos] = pokemon;
pokemon.activeTurns = 0;
pokemon.activeMoveActions = 0;
for (const moveSlot of pokemon.moveSlots) {
moveSlot.used = false;
}
this.battle.runEvent('BeforeSwitchIn', pokemon);
if (sourceEffect) {
this.battle.add(isDrag ? 'drag' : 'switch', pokemon, pokemon.getDetails, '[from] ' + sourceEffect);
} else {
this.battle.add(isDrag ? 'drag' : 'switch', pokemon, pokemon.getDetails);
}
pokemon.abilityOrder = this.battle.abilityOrder++;
if (isDrag && this.battle.gen === 2) pokemon.draggedIn = this.battle.turn;
pokemon.previouslySwitchedIn++;
if (isDrag && this.battle.gen >= 5) {
// runSwitch happens immediately so that Mold Breaker can make hazards bypass Clear Body and Levitate
this.battle.singleEvent('PreStart', pokemon.getAbility(), pokemon.abilityState, pokemon);
this.runSwitch(pokemon);
} else {
this.battle.queue.insertChoice({choice: 'runUnnerve', pokemon});
this.battle.queue.insertChoice({choice: 'runSwitch', pokemon});
}
return true;
}
dragIn(side: Side, pos: number) {
const pokemon = this.battle.getRandomSwitchable(side);
if (!pokemon || pokemon.isActive) return false;
const oldActive = side.active[pos];
if (!oldActive) throw new Error(`nothing to drag out`);
if (!oldActive.hp) return false;
if (!this.battle.runEvent('DragOut', oldActive)) {
return false;
}
if (!this.switchIn(pokemon, pos, null, true)) return false;
return true;
}
runSwitch(pokemon: Pokemon) {
this.battle.runEvent('Swap', pokemon);
if (this.battle.gen >= 5) {
this.battle.runEvent('SwitchIn', pokemon);
}
this.battle.runEvent('EntryHazard', pokemon);
if (this.battle.gen <= 4) {
this.battle.runEvent('SwitchIn', pokemon);
}
if (this.battle.gen <= 2) {
// pokemon.lastMove is reset for all Pokemon on the field after a switch. This affects Mirror Move.
for (const poke of this.battle.getAllActive()) poke.lastMove = null;
if (!pokemon.side.faintedThisTurn && pokemon.draggedIn !== this.battle.turn) {
this.battle.runEvent('AfterSwitchInSelf', pokemon);
}
}
if (!pokemon.hp) return false;
pokemon.isStarted = true;
if (!pokemon.fainted) {
this.battle.singleEvent('Start', pokemon.getAbility(), pokemon.abilityState, pokemon);
this.battle.singleEvent('Start', pokemon.getItem(), pokemon.itemState, pokemon);
}
if (this.battle.gen === 4) {
for (const foeActive of pokemon.foes()) {
foeActive.removeVolatile('substitutebroken');
}
}
pokemon.draggedIn = null;
return true;
}
// #endregion
// #region MOVES
// ==================================================================
/**
* runMove is the "outside" move caller. It handles deducting PP,
* flinching, full paralysis, etc. All the stuff up to and including
* the "POKEMON used MOVE" message.
*
* For details of the difference between runMove and useMove, see
* useMove's info.
*
* externalMove skips LockMove and PP deduction, mostly for use by
* Dancer.
*/
runMove(
moveOrMoveName: Move | string, pokemon: Pokemon, targetLoc: number, sourceEffect?: Effect | null,
zMove?: string, externalMove?: boolean, maxMove?: string, originalTarget?: Pokemon
) {
pokemon.activeMoveActions++;
let target = this.battle.getTarget(pokemon, maxMove || zMove || moveOrMoveName, targetLoc, originalTarget);
let baseMove = this.dex.getActiveMove(moveOrMoveName);
const priority = baseMove.priority;
const pranksterBoosted = baseMove.pranksterBoosted;
if (baseMove.id !== 'struggle' && !zMove && !maxMove && !externalMove) {
const changedMove = this.battle.runEvent('OverrideAction', pokemon, target, baseMove);
if (changedMove && changedMove !== true) {
baseMove = this.dex.getActiveMove(changedMove);
baseMove.priority = priority;
if (pranksterBoosted) baseMove.pranksterBoosted = pranksterBoosted;
target = this.battle.getRandomTarget(pokemon, baseMove);
}
}
let move = baseMove;
if (zMove) {
move = this.getActiveZMove(baseMove, pokemon);
} else if (maxMove) {
move = this.getActiveMaxMove(baseMove, pokemon);
}
move.isExternal = externalMove;
this.battle.setActiveMove(move, pokemon, target);
/* if (pokemon.moveThisTurn) {
// THIS IS PURELY A SANITY CHECK
// DO NOT TAKE ADVANTAGE OF THIS TO PREVENT A POKEMON FROM MOVING;
// USE this.queue.cancelMove INSTEAD
this.battle.debug('' + pokemon.id + ' INCONSISTENT STATE, ALREADY MOVED: ' + pokemon.moveThisTurn);
this.battle.clearActiveMove(true);
return;
} */
const willTryMove = this.battle.runEvent('BeforeMove', pokemon, target, move);
if (!willTryMove) {
this.battle.runEvent('MoveAborted', pokemon, target, move);
this.battle.clearActiveMove(true);
// The event 'BeforeMove' could have returned false or null
// false indicates that this counts as a move failing for the purpose of calculating Stomping Tantrum's base power
// null indicates the opposite, as the Pokemon didn't have an option to choose anything
pokemon.moveThisTurnResult = willTryMove;
return;
}
// Used exclusively for a hint later
if (move.flags['cantusetwice'] && pokemon.lastMove?.id === move.id) {
pokemon.addVolatile(move.id);
}
if (move.beforeMoveCallback) {
if (move.beforeMoveCallback.call(this.battle, pokemon, target, move)) {
this.battle.clearActiveMove(true);
pokemon.moveThisTurnResult = false;
return;
}
}
pokemon.lastDamage = 0;
let lockedMove;
if (!externalMove) {
lockedMove = this.battle.runEvent('LockMove', pokemon);
if (lockedMove === true) lockedMove = false;
if (!lockedMove) {
if (!pokemon.deductPP(baseMove, null, target) && (move.id !== 'struggle')) {
this.battle.add('cant', pokemon, 'nopp', move);
this.battle.clearActiveMove(true);
pokemon.moveThisTurnResult = false;
return;
}
} else {
sourceEffect = this.dex.conditions.get('lockedmove');
}
pokemon.moveUsed(move, targetLoc);
}
// Dancer Petal Dance hack
// TODO: implement properly
const noLock = externalMove && !pokemon.volatiles['lockedmove'];
if (zMove) {
if (pokemon.illusion) {
this.battle.singleEvent('End', this.dex.abilities.get('Illusion'), pokemon.abilityState, pokemon);
}
this.battle.add('-zpower', pokemon);
pokemon.side.zMoveUsed = true;
}
const oldActiveMove = move;
const moveDidSomething = this.useMove(baseMove, pokemon, target, sourceEffect, zMove, maxMove);
this.battle.lastSuccessfulMoveThisTurn = moveDidSomething ? this.battle.activeMove && this.battle.activeMove.id : null;
if (this.battle.activeMove) move = this.battle.activeMove;
this.battle.singleEvent('AfterMove', move, null, pokemon, target, move);
this.battle.runEvent('AfterMove', pokemon, target, move);
if (move.flags['cantusetwice'] && pokemon.removeVolatile(move.id)) {
this.battle.add('-hint', `Some effects can force a Pokemon to use ${move.name} again in a row.`);
}
// Dancer's activation order is completely different from any other event, so it's handled separately
if (move.flags['dance'] && moveDidSomething && !move.isExternal) {
const dancers = [];
for (const currentPoke of this.battle.getAllActive()) {
if (pokemon === currentPoke) continue;
if (currentPoke.hasAbility('dancer') && !currentPoke.isSemiInvulnerable()) {
dancers.push(currentPoke);
}
}
// Dancer activates in order of lowest speed stat to highest
// Note that the speed stat used is after any volatile replacements like Speed Swap,
// but before any multipliers like Agility or Choice Scarf
// Ties go to whichever Pokemon has had the ability for the least amount of time
dancers.sort(
(a, b) => -(b.storedStats['spe'] - a.storedStats['spe']) || b.abilityOrder - a.abilityOrder
);
const targetOf1stDance = this.battle.activeTarget!;
for (const dancer of dancers) {
if (this.battle.faintMessages()) break;
if (dancer.fainted) continue;
this.battle.add('-activate', dancer, 'ability: Dancer');
const dancersTarget = !targetOf1stDance.isAlly(dancer) && pokemon.isAlly(dancer) ?
targetOf1stDance :
pokemon;
const dancersTargetLoc = dancer.getLocOf(dancersTarget);
this.runMove(move.id, dancer, dancersTargetLoc, this.dex.abilities.get('dancer'), undefined, true);
}
}
if (noLock && pokemon.volatiles['lockedmove']) delete pokemon.volatiles['lockedmove'];
this.battle.faintMessages();
this.battle.checkWin();
if (this.battle.gen <= 4) {
// In gen 4, the outermost move is considered the last move for Copycat
this.battle.activeMove = oldActiveMove;
}
}
/**
* useMove is the "inside" move caller. It handles effects of the
* move itself, but not the idea of using the move.
*
* Most caller effects, like Sleep Talk, Nature Power, Magic Bounce,
* etc use useMove.
*
* The only ones that use runMove are Instruct, Pursuit, and
* Dancer.
*/
useMove(
move: Move | string, pokemon: Pokemon, target?: Pokemon | null,
sourceEffect?: Effect | null, zMove?: string, maxMove?: string
) {
pokemon.moveThisTurnResult = undefined;
const oldMoveResult: boolean | null | undefined = pokemon.moveThisTurnResult;
const moveResult = this.useMoveInner(move, pokemon, target, sourceEffect, zMove, maxMove);
if (oldMoveResult === pokemon.moveThisTurnResult) pokemon.moveThisTurnResult = moveResult;
return moveResult;
}
useMoveInner(
moveOrMoveName: Move | string, pokemon: Pokemon, target?: Pokemon | null,
sourceEffect?: Effect | null, zMove?: string, maxMove?: string
) {
if (!sourceEffect && this.battle.effect.id) sourceEffect = this.battle.effect;
if (sourceEffect && ['instruct', 'custapberry'].includes(sourceEffect.id)) sourceEffect = null;
let move = this.dex.getActiveMove(moveOrMoveName);
pokemon.lastMoveUsed = move;
if (move.id === 'weatherball' && zMove) {
// Z-Weather Ball only changes types if it's used directly,
// not if it's called by Z-Sleep Talk or something.
this.battle.singleEvent('ModifyType', move, null, pokemon, target, move, move);
if (move.type !== 'Normal') sourceEffect = move;
}
if (zMove || (move.category !== 'Status' && sourceEffect && (sourceEffect as ActiveMove).isZ)) {
move = this.getActiveZMove(move, pokemon);
}
if (maxMove && move.category !== 'Status') {
// Max move outcome is dependent on the move type after type modifications from ability and the move itself
this.battle.singleEvent('ModifyType', move, null, pokemon, target, move, move);
this.battle.runEvent('ModifyType', pokemon, target, move, move);
}
if (maxMove || (move.category !== 'Status' && sourceEffect && (sourceEffect as ActiveMove).isMax)) {
move = this.getActiveMaxMove(move, pokemon);
}
if (this.battle.activeMove) {
move.priority = this.battle.activeMove.priority;
if (!move.hasBounced) move.pranksterBoosted = this.battle.activeMove.pranksterBoosted;
}
const baseTarget = move.target;
let targetRelayVar = {target};
targetRelayVar = this.battle.runEvent('ModifyTarget', pokemon, target, move, targetRelayVar, true);
if (targetRelayVar.target !== undefined) target = targetRelayVar.target;
if (target === undefined) target = this.battle.getRandomTarget(pokemon, move);
if (move.target === 'self' || move.target === 'allies') {
target = pokemon;
}
if (sourceEffect) {
move.sourceEffect = sourceEffect.id;
move.ignoreAbility = (sourceEffect as ActiveMove).ignoreAbility;
}
let moveResult = false;
this.battle.setActiveMove(move, pokemon, target);
this.battle.singleEvent('ModifyType', move, null, pokemon, target, move, move);
this.battle.singleEvent('ModifyMove', move, null, pokemon, target, move, move);
if (baseTarget !== move.target) {
// Target changed in ModifyMove, so we must adjust it here
// Adjust before the next event so the correct target is passed to the
// event
target = this.battle.getRandomTarget(pokemon, move);
}
move = this.battle.runEvent('ModifyType', pokemon, target, move, move);
move = this.battle.runEvent('ModifyMove', pokemon, target, move, move);
if (baseTarget !== move.target) {
// Adjust again
target = this.battle.getRandomTarget(pokemon, move);
}
if (!move || pokemon.fainted) {
return false;
}
let attrs = '';
let movename = move.name;
if (move.id === 'hiddenpower') movename = 'Hidden Power';
if (sourceEffect) attrs += `|[from]${sourceEffect.fullname}`;
if (zMove && move.isZ === true) {
attrs = '|[anim]' + movename + attrs;
movename = 'Z-' + movename;
}
this.battle.addMove('move', pokemon, movename, target + attrs);
if (zMove) this.runZPower(move, pokemon);
if (!target) {
this.battle.attrLastMove('[notarget]');
this.battle.add(this.battle.gen >= 5 ? '-fail' : '-notarget', pokemon);
return false;
}
const {targets, pressureTargets} = pokemon.getMoveTargets(move, target);
if (targets.length) {
target = targets[targets.length - 1]; // in case of redirection
}
const callerMoveForPressure = sourceEffect && (sourceEffect as ActiveMove).pp ? sourceEffect as ActiveMove : null;
if (!sourceEffect || callerMoveForPressure || sourceEffect.id === 'pursuit') {
let extraPP = 0;
for (const source of pressureTargets) {
const ppDrop = this.battle.runEvent('DeductPP', source, pokemon, move);
if (ppDrop !== true) {
extraPP += ppDrop || 0;
}
}
if (extraPP > 0) {
pokemon.deductPP(callerMoveForPressure || moveOrMoveName, extraPP);
}
}
if (!this.battle.singleEvent('TryMove', move, null, pokemon, target, move) ||
!this.battle.runEvent('TryMove', pokemon, target, move)) {
move.mindBlownRecoil = false;
return false;
}
this.battle.singleEvent('UseMoveMessage', move, null, pokemon, target, move);
if (move.ignoreImmunity === undefined) {
move.ignoreImmunity = (move.category === 'Status');
}
if (this.battle.gen !== 4 && move.selfdestruct === 'always') {
this.battle.faint(pokemon, pokemon, move);
}
let damage: number | false | undefined | '' = false;
if (move.target === 'all' || move.target === 'foeSide' || move.target === 'allySide' || move.target === 'allyTeam') {
damage = this.tryMoveHit(targets, pokemon, move);
if (damage === this.battle.NOT_FAIL) pokemon.moveThisTurnResult = null;
if (damage || damage === 0 || damage === undefined) moveResult = true;
} else {
if (!targets.length) {
this.battle.attrLastMove('[notarget]');
this.battle.add(this.battle.gen >= 5 ? '-fail' : '-notarget', pokemon);
return false;
}
if (this.battle.gen === 4 && move.selfdestruct === 'always') {
this.battle.faint(pokemon, pokemon, move);
}
moveResult = this.trySpreadMoveHit(targets, pokemon, move);
}
if (move.selfBoost && moveResult) this.moveHit(pokemon, pokemon, move, move.selfBoost, false, true);
if (!pokemon.hp) {
this.battle.faint(pokemon, pokemon, move);
}
if (!moveResult) {
this.battle.singleEvent('MoveFail', move, null, target, pokemon, move);
return false;
}
if (
!move.negateSecondary &&
!(move.hasSheerForce && pokemon.hasAbility('sheerforce')) &&
!move.flags['futuremove']
) {
const originalHp = pokemon.hp;
this.battle.singleEvent('AfterMoveSecondarySelf', move, null, pokemon, target, move);
this.battle.runEvent('AfterMoveSecondarySelf', pokemon, target, move);
if (pokemon && pokemon !== target && move.category !== 'Status') {
if (pokemon.hp <= pokemon.maxhp / 2 && originalHp > pokemon.maxhp / 2) {
this.battle.runEvent('EmergencyExit', pokemon, pokemon);
}
}
}
return true;
}
/** NOTE: includes single-target moves */
trySpreadMoveHit(targets: Pokemon[], pokemon: Pokemon, move: ActiveMove, notActive?: boolean) {
if (targets.length > 1 && !move.smartTarget) move.spreadHit = true;
const moveSteps: ((targets: Pokemon[], pokemon: Pokemon, move: ActiveMove) =>
(number | boolean | "" | undefined)[] | undefined)[] = [
// 0. check for semi invulnerability
this.hitStepInvulnerabilityEvent,
// 1. run the 'TryHit' event (Protect, Magic Bounce, Volt Absorb, etc.) (this is step 2 in gens 5 & 6, and step 4 in gen 4)
this.hitStepTryHitEvent,
// 2. check for type immunity (this is step 1 in gens 4-6)
this.hitStepTypeImmunity,
// 3. check for various move-specific immunities
this.hitStepTryImmunity,
// 4. check accuracy
this.hitStepAccuracy,
// 5. break protection effects
this.hitStepBreakProtect,
// 6. steal positive boosts (Spectral Thief)
this.hitStepStealBoosts,
// 7. loop that processes each hit of the move (has its own steps per iteration)
this.hitStepMoveHitLoop,
];
if (this.battle.gen <= 6) {
// Swap step 1 with step 2
[moveSteps[1], moveSteps[2]] = [moveSteps[2], moveSteps[1]];
}
if (this.battle.gen === 4) {
// Swap step 4 with new step 2 (old step 1)
[moveSteps[2], moveSteps[4]] = [moveSteps[4], moveSteps[2]];
}
if (notActive) this.battle.setActiveMove(move, pokemon, targets[0]);
const hitResult = this.battle.singleEvent('Try', move, null, pokemon, targets[0], move) &&
this.battle.singleEvent('PrepareHit', move, {}, targets[0], pokemon, move) &&
this.battle.runEvent('PrepareHit', pokemon, targets[0], move);
if (!hitResult) {
if (hitResult === false) {
this.battle.add('-fail', pokemon);
this.battle.attrLastMove('[still]');
}
return hitResult === this.battle.NOT_FAIL;
}
let atLeastOneFailure = false;
for (const step of moveSteps) {
const hitResults: (number | boolean | "" | undefined)[] | undefined = step.call(this, targets, pokemon, move);
if (!hitResults) continue;
targets = targets.filter((val, i) => hitResults[i] || hitResults[i] === 0);
atLeastOneFailure = atLeastOneFailure || hitResults.some(val => val === false);
if (move.smartTarget && atLeastOneFailure) move.smartTarget = false;
if (!targets.length) {
// console.log(step.name);
break;
}
}
const moveResult = !!targets.length;
if (!moveResult && !atLeastOneFailure) pokemon.moveThisTurnResult = null;
const hitSlot = targets.map(p => p.getSlot());
if (move.spreadHit) this.battle.attrLastMove('[spread] ' + hitSlot.join(','));
return moveResult;
}
hitStepInvulnerabilityEvent(targets: Pokemon[], pokemon: Pokemon, move: ActiveMove) {
if (move.id === 'helpinghand') return new Array(targets.length).fill(true);
const hitResults: boolean[] = [];
for (const [i, target] of targets.entries()) {
if (target.volatiles['commanding']) {
hitResults[i] = false;
} else if (this.battle.gen >= 8 && move.id === 'toxic' && pokemon.hasType('Poison')) {
hitResults[i] = true;
} else {
hitResults[i] = this.battle.runEvent('Invulnerability', target, pokemon, move);
}
if (hitResults[i] === false) {
if (move.smartTarget) {
move.smartTarget = false;
} else {
if (!move.spreadHit) this.battle.attrLastMove('[miss]');
this.battle.add('-miss', pokemon, target);
}
}
}
return hitResults;
}
hitStepTryHitEvent(targets: Pokemon[], pokemon: Pokemon, move: ActiveMove) {
const hitResults = this.battle.runEvent('TryHit', targets, pokemon, move);
if (!hitResults.includes(true) && hitResults.includes(false)) {
this.battle.add('-fail', pokemon);
this.battle.attrLastMove('[still]');
}
for (const i of targets.keys()) {
if (hitResults[i] !== this.battle.NOT_FAIL) hitResults[i] = hitResults[i] || false;
}
return hitResults;
}
hitStepTypeImmunity(targets: Pokemon[], pokemon: Pokemon, move: ActiveMove) {
if (move.ignoreImmunity === undefined) {
move.ignoreImmunity = (move.category === 'Status');
}
const hitResults = [];
for (const i of targets.keys()) {
hitResults[i] = (move.ignoreImmunity && (move.ignoreImmunity === true || move.ignoreImmunity[move.type])) ||
targets[i].runImmunity(move.type, !move.smartTarget);
}
return hitResults;
}
hitStepTryImmunity(targets: Pokemon[], pokemon: Pokemon, move: ActiveMove) {
const hitResults = [];
for (const [i, target] of targets.entries()) {
if (this.battle.gen >= 6 && move.flags['powder'] && target !== pokemon && !this.dex.getImmunity('powder', target)) {
this.battle.debug('natural powder immunity');
this.battle.add('-immune', target);
hitResults[i] = false;
} else if (!this.battle.singleEvent('TryImmunity', move, {}, target, pokemon, move)) {
this.battle.add('-immune', target);
hitResults[i] = false;
} else if (this.battle.gen >= 7 && move.pranksterBoosted && pokemon.hasAbility('prankster') &&
!targets[i].isAlly(pokemon) && !this.dex.getImmunity('prankster', target)) {
this.battle.debug('natural prankster immunity');
if (target.illusion || !(move.status && !this.dex.getImmunity(move.status, target))) {
this.battle.hint("Since gen 7, Dark is immune to Prankster moves.");
}
this.battle.add('-immune', target);
hitResults[i] = false;
} else {
hitResults[i] = true;
}
}
return hitResults;
}
hitStepAccuracy(targets: Pokemon[], pokemon: Pokemon, move: ActiveMove) {
const hitResults = [];
for (const [i, target] of targets.entries()) {
this.battle.activeTarget = target;
// calculate true accuracy
let accuracy = move.accuracy;
if (move.ohko) { // bypasses accuracy modifiers
if (!target.isSemiInvulnerable()) {
accuracy = 30;
if (move.ohko === 'Ice' && this.battle.gen >= 7 && !pokemon.hasType('Ice')) {
accuracy = 20;
}
if (!target.volatiles['dynamax'] && pokemon.level >= target.level &&
(move.ohko === true || !target.hasType(move.ohko))) {
accuracy += (pokemon.level - target.level);
} else {
this.battle.add('-immune', target, '[ohko]');
hitResults[i] = false;
continue;
}
}
} else {
accuracy = this.battle.runEvent('ModifyAccuracy', target, pokemon, move, accuracy);
if (accuracy !== true) {
let boost = 0;
if (!move.ignoreAccuracy) {
const boosts = this.battle.runEvent('ModifyBoost', pokemon, null, null, {...pokemon.boosts});
boost = this.battle.clampIntRange(boosts['accuracy'], -6, 6);
}
if (!move.ignoreEvasion) {
const boosts = this.battle.runEvent('ModifyBoost', target, null, null, {...target.boosts});
boost = this.battle.clampIntRange(boost - boosts['evasion'], -6, 6);
}
if (boost > 0) {
accuracy = this.battle.trunc(accuracy * (3 + boost) / 3);
} else if (boost < 0) {
accuracy = this.battle.trunc(accuracy * 3 / (3 - boost));
}
}
}
if (move.alwaysHit || (move.id === 'toxic' && this.battle.gen >= 8 && pokemon.hasType('Poison')) ||
(move.target === 'self' && move.category === 'Status' && !target.isSemiInvulnerable())) {
accuracy = true; // bypasses ohko accuracy modifiers
} else {
accuracy = this.battle.runEvent('Accuracy', target, pokemon, move, accuracy);
}
if (accuracy !== true && !this.battle.randomChance(accuracy, 100)) {
if (move.smartTarget) {
move.smartTarget = false;
} else {
if (!move.spreadHit) this.battle.attrLastMove('[miss]');
this.battle.add('-miss', pokemon, target);
}
if (!move.ohko && pokemon.hasItem('blunderpolicy') && pokemon.useItem()) {
this.battle.boost({spe: 2}, pokemon);
}
hitResults[i] = false;
continue;
}
hitResults[i] = true;
}
return hitResults;
}
hitStepBreakProtect(targets: Pokemon[], pokemon: Pokemon, move: ActiveMove) {
if (move.breaksProtect) {
for (const target of targets) {
let broke = false;
for (const effectid of [
'banefulbunker', 'burningbulwark', 'kingsshield', 'obstruct', 'protect', 'silktrap', 'spikyshield',
]) {
if (target.removeVolatile(effectid)) broke = true;
}
if (this.battle.gen >= 6 || !target.isAlly(pokemon)) {
for (const effectid of ['craftyshield', 'matblock', 'quickguard', 'wideguard']) {
if (target.side.removeSideCondition(effectid)) broke = true;
}
}
if (broke) {
if (move.id === 'feint') {
this.battle.add('-activate', target, 'move: Feint');
} else {
this.battle.add('-activate', target, 'move: ' + move.name, '[broken]');
}
if (this.battle.gen >= 6) delete target.volatiles['stall'];
}
}
}
return undefined;
}
hitStepStealBoosts(targets: Pokemon[], pokemon: Pokemon, move: ActiveMove) {
const target = targets[0]; // hardcoded
if (move.stealsBoosts) {
const boosts: SparseBoostsTable = {};
let stolen = false;
let statName: BoostID;
for (statName in target.boosts) {
const stage = target.boosts[statName];
if (stage > 0) {
boosts[statName] = stage;
stolen = true;
}
}
if (stolen) {
this.battle.attrLastMove('[still]');
this.battle.add('-clearpositiveboost', target, pokemon, 'move: ' + move.name);
this.battle.boost(boosts, pokemon, pokemon);
let statName2: BoostID;
for (statName2 in boosts) {
boosts[statName2] = 0;
}
target.setBoost(boosts);
if (move.id === "spectralthief") {
this.battle.addMove('-anim', pokemon, "Spectral Thief", target);
}
}
}
return undefined;
}
afterMoveSecondaryEvent(targets: Pokemon[], pokemon: Pokemon, move: ActiveMove) {
// console.log(`${targets}, ${pokemon}, ${move}`)
if (!move.negateSecondary && !(move.hasSheerForce && pokemon.hasAbility('sheerforce'))) {
this.battle.singleEvent('AfterMoveSecondary', move, null, targets[0], pokemon, move);
this.battle.runEvent('AfterMoveSecondary', targets, pokemon, move);
}
return undefined;
}
/** NOTE: used only for moves that target sides/fields rather than pokemon */
tryMoveHit(targetOrTargets: Pokemon | Pokemon[], pokemon: Pokemon, move: ActiveMove): number | undefined | false | '' {
const target = Array.isArray(targetOrTargets) ? targetOrTargets[0] : targetOrTargets;
const targets = Array.isArray(targetOrTargets) ? targetOrTargets : [target];
this.battle.setActiveMove(move, pokemon, targets[0]);
let hitResult = this.battle.singleEvent('Try', move, null, pokemon, target, move) &&
this.battle.singleEvent('PrepareHit', move, {}, target, pokemon, move) &&
this.battle.runEvent('PrepareHit', pokemon, target, move);
if (!hitResult) {
if (hitResult === false) {
this.battle.add('-fail', pokemon);
this.battle.attrLastMove('[still]');
}
return false;
}
const isFFAHazard = move.target === 'foeSide' && this.battle.gameType === 'freeforall';
if (move.target === 'all') {
hitResult = this.battle.runEvent('TryHitField', target, pokemon, move);
} else if (isFFAHazard) {
const hitResults: any[] = this.battle.runEvent('TryHitSide', targets, pokemon, move);
// if some side blocked the move, prevent the move from executing against any other sides
if (hitResults.some(result => !result)) return false;
hitResult = true;
} else {
hitResult = this.battle.runEvent('TryHitSide', target, pokemon, move);
}
if (!hitResult) {
if (hitResult === false) {
this.battle.add('-fail', pokemon);
this.battle.attrLastMove('[still]');
}
return false;
}
return this.moveHit(isFFAHazard ? targets : target, pokemon, move);
}
hitStepMoveHitLoop(targets: Pokemon[], pokemon: Pokemon, move: ActiveMove) { // Temporary name
let damage: (number | boolean | undefined)[] = [];
for (const i of targets.keys()) {
damage[i] = 0;
}
move.totalDamage = 0;
pokemon.lastDamage = 0;
let targetHits = move.multihit || 1;
if (Array.isArray(targetHits)) {
// yes, it's hardcoded... meh
if (targetHits[0] === 2 && targetHits[1] === 5) {
if (this.battle.gen >= 5) {
// 35-35-15-15 out of 100 for 2-3-4-5 hits
targetHits = this.battle.sample([2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 5, 5, 5]);
if (targetHits < 4 && pokemon.hasItem('loadeddice')) {
targetHits = 5 - this.battle.random(2);
}
} else {
targetHits = this.battle.sample([2, 2, 2, 3, 3, 3, 4, 5]);
}
} else {
targetHits = this.battle.random(targetHits[0], targetHits[1] + 1);
}
}
if (targetHits === 10 && pokemon.hasItem('loadeddice')) targetHits -= this.battle.random(7);
targetHits = Math.floor(targetHits);
let nullDamage = true;
let moveDamage: (number | boolean | undefined)[] = [];
// There is no need to recursively check the ´sleepUsable´ flag as Sleep Talk can only be used while asleep.
const isSleepUsable = move.sleepUsable || this.dex.moves.get(move.sourceEffect).sleepUsable;
let targetsCopy: (Pokemon | false | null)[] = targets.slice(0);
let hit: number;
for (hit = 1; hit <= targetHits; hit++) {
if (damage.includes(false)) break;
if (hit > 1 && pokemon.status === 'slp' && (!isSleepUsable || this.battle.gen === 4)) break;
if (targets.every(target => !target?.hp)) break;
move.hit = hit;
if (move.smartTarget && targets.length > 1) {
targetsCopy = [targets[hit - 1]];
damage = [damage[hit - 1]];
} else {
targetsCopy = targets.slice(0);
}
const target = targetsCopy[0]; // some relevant-to-single-target-moves-only things are hardcoded
if (target && typeof move.smartTarget === 'boolean') {
if (hit > 1) {
this.battle.addMove('-anim', pokemon, move.name, target);
} else {
this.battle.retargetLastMove(target);
}
}
// like this (Triple Kick)
if (target && move.multiaccuracy && hit > 1) {
let accuracy = move.accuracy;
const boostTable = [1, 4 / 3, 5 / 3, 2, 7 / 3, 8 / 3, 3];
if (accuracy !== true) {
if (!move.ignoreAccuracy) {
const boosts = this.battle.runEvent('ModifyBoost', pokemon, null, null, {...pokemon.boosts});
const boost = this.battle.clampIntRange(boosts['accuracy'], -6, 6);
if (boost > 0) {
accuracy *= boostTable[boost];
} else {
accuracy /= boostTable[-boost];
}
}
if (!move.ignoreEvasion) {
const boosts = this.battle.runEvent('ModifyBoost', target, null, null, {...target.boosts});
const boost = this.battle.clampIntRange(boosts['evasion'], -6, 6);
if (boost > 0) {
accuracy /= boostTable[boost];
} else if (boost < 0) {
accuracy *= boostTable[-boost];
}
}
}
accuracy = this.battle.runEvent('ModifyAccuracy', target, pokemon, move, accuracy);
if (!move.alwaysHit) {
accuracy = this.battle.runEvent('Accuracy', target, pokemon, move, accuracy);
if (accuracy !== true && !this.battle.randomChance(accuracy, 100)) break;
}
}
const moveData = move;
if (!moveData.flags) moveData.flags = {};
let moveDamageThisHit;
// Modifies targetsCopy (which is why it's a copy)
[moveDamageThisHit, targetsCopy] = this.spreadMoveHit(targetsCopy, pokemon, move, moveData);
// When Dragon Darts targets two different pokemon, targetsCopy is a length 1 array each hit
// so spreadMoveHit returns a length 1 damage array
if (move.smartTarget) {
moveDamage.push(...moveDamageThisHit);
} else {
moveDamage = moveDamageThisHit;
}
if (!moveDamage.some(val => val !== false)) break;
nullDamage = false;
for (const [i, md] of moveDamage.entries()) {
if (move.smartTarget && i !== hit - 1) continue;
// Damage from each hit is individually counted for the
// purposes of Counter, Metal Burst, and Mirror Coat.
damage[i] = md === true || !md ? 0 : md;
// Total damage dealt is accumulated for the purposes of recoil (Parental Bond).
move.totalDamage += damage[i] as number;
}
if (move.mindBlownRecoil) {
const hpBeforeRecoil = pokemon.hp;
this.battle.damage(Math.round(pokemon.maxhp / 2), pokemon, pokemon, this.dex.conditions.get(move.id), true);
move.mindBlownRecoil = false;
if (pokemon.hp <= pokemon.maxhp / 2 && hpBeforeRecoil > pokemon.maxhp / 2) {
this.battle.runEvent('EmergencyExit', pokemon, pokemon);
}
}
this.battle.eachEvent('Update');
if (!pokemon.hp && targets.length === 1) {
hit++; // report the correct number of hits for multihit moves
break;
}
}
// hit is 1 higher than the actual hit count
if (hit === 1) return damage.fill(false);
if (nullDamage) damage.fill(false);
this.battle.faintMessages(false, false, !pokemon.hp);
if (move.multihit && typeof move.smartTarget !== 'boolean') {
this.battle.add('-hitcount', targets[0], hit - 1);
}
if ((move.recoil || move.id === 'chloroblast') && move.totalDamage) {
const hpBeforeRecoil = pokemon.hp;
this.battle.damage(this.calcRecoilDamage(move.totalDamage, move, pokemon), pokemon, pokemon, 'recoil');
if (pokemon.hp <= pokemon.maxhp / 2 && hpBeforeRecoil > pokemon.maxhp / 2) {
this.battle.runEvent('EmergencyExit', pokemon, pokemon);
}
}
if (move.struggleRecoil) {
const hpBeforeRecoil = pokemon.hp;
let recoilDamage;
if (this.dex.gen >= 5) {
recoilDamage = this.battle.clampIntRange(Math.round(pokemon.baseMaxhp / 4), 1);
} else {
recoilDamage = this.battle.clampIntRange(this.battle.trunc(pokemon.maxhp / 4), 1);
}
this.battle.directDamage(recoilDamage, pokemon, pokemon, {id: 'strugglerecoil'} as Condition);
if (pokemon.hp <= pokemon.maxhp / 2 && hpBeforeRecoil > pokemon.maxhp / 2) {
this.battle.runEvent('EmergencyExit', pokemon, pokemon);
}
}