mirror of
https://github.com/smogon/pokemon-showdown.git
synced 2026-05-21 06:37:09 -05:00
246dfa1da3
Previously, if we wanted to test if A was either 'B' or 'C', we would use
the pattern:
A in {B:1, C:1}
I actually don't know how common this pattern is; I just started using
it because I was tired of typing `A === 'B' || A === 'C'` all the time.
I never really liked it, though; the `:1` part made it kind of
blatantly a hack.
I did some testing and `['B', 'C'].includes(A)` is overall faster.
(A switch statement is around 20x faster still, but who wants to type
that much code?)
Anyway, the new standard is
['B', 'C'].includes(A)
Something something progress!
552 lines
19 KiB
JavaScript
552 lines
19 KiB
JavaScript
'use strict';
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/**
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* Gen 2 scripts.
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*/
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exports.BattleScripts = {
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inherit: 'gen3',
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gen: 2,
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// BattlePokemon scripts.
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pokemon: {
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getStat: function (statName, unboosted, unmodified) {
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statName = toId(statName);
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if (statName === 'hp') return this.maxhp;
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// base stat
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let stat = this.stats[statName];
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// Stat boosts.
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if (!unboosted) {
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let boost = this.boosts[statName];
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if (boost > 6) boost = 6;
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if (boost < -6) boost = -6;
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if (boost >= 0) {
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let boostTable = [1, 1.5, 2, 2.5, 3, 3.5, 4];
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stat = Math.floor(stat * boostTable[boost]);
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} else {
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let numerators = [100, 66, 50, 40, 33, 28, 25];
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stat = Math.floor(stat * numerators[-boost] / 100);
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}
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}
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if (this.status === 'par' && statName === 'spe') {
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stat = Math.floor(stat / 4);
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}
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if (!unmodified) {
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// Burn attack drop is checked when you get the attack stat upon switch in and used until switch out.
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if (this.status === 'brn' && statName === 'atk') {
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stat = Math.floor(stat / 2);
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}
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}
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// Gen 2 caps stats at 999 and min is 1.
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stat = this.battle.clampIntRange(stat, 1, 999);
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// Screens
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if (!unboosted) {
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if ((this.side.sideConditions['reflect'] && statName === 'def') || (this.side.sideConditions['lightscreen'] && statName === 'spd')) {
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stat *= 2;
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}
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}
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// Treat here the items.
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if ((['Cubone', 'Marowak'].includes(this.species) && this.item === 'thickclub' && statName === 'atk') || (this.species === 'Pikachu' && this.item === 'lightball' && statName === 'spa')) {
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stat *= 2;
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} else if (this.species === 'Ditto' && this.item === 'metalpowder' && ['def', 'spd'].includes(statName)) {
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// what. the. fuck. stop playing pokémon
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stat *= 1.5;
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}
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return stat;
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},
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},
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// Battle scripts.
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runMove: function (move, pokemon, targetLoc, sourceEffect) {
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let target = this.getTarget(pokemon, move, targetLoc);
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if (!sourceEffect && toId(move) !== 'struggle') {
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let changedMove = this.runEvent('OverrideDecision', pokemon, target, move);
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if (changedMove && changedMove !== true) {
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move = changedMove;
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target = null;
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}
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}
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move = this.getMove(move);
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if (!target && target !== false) target = this.resolveTarget(pokemon, move);
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this.setActiveMove(move, pokemon, target);
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if (pokemon.moveThisTurn) {
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// THIS IS PURELY A SANITY CHECK
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// DO NOT TAKE ADVANTAGE OF THIS TO PREVENT A POKEMON FROM MOVING;
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// USE this.cancelMove INSTEAD
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this.debug('' + pokemon.id + ' INCONSISTENT STATE, ALREADY MOVED: ' + pokemon.moveThisTurn);
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this.clearActiveMove(true);
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return;
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}
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if (!this.runEvent('BeforeMove', pokemon, target, move)) {
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// Prevent invulnerability from persisting until the turn ends
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pokemon.removeVolatile('twoturnmove');
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// End Bide
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pokemon.removeVolatile('bide');
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// Rampage moves end without causing confusion
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delete pokemon.volatiles['lockedmove'];
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this.clearActiveMove(true);
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// This is only run for sleep and fully paralysed.
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this.runEvent('AfterMoveSelf', pokemon, target, move);
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return;
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}
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if (move.beforeMoveCallback) {
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if (move.beforeMoveCallback.call(this, pokemon, target, move)) {
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this.clearActiveMove(true);
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return;
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}
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}
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pokemon.lastDamage = 0;
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let lockedMove = this.runEvent('LockMove', pokemon);
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if (lockedMove === true) lockedMove = false;
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if (!lockedMove) {
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if (!pokemon.deductPP(move, null, target) && (move.id !== 'struggle')) {
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this.add('cant', pokemon, 'nopp', move);
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this.clearActiveMove(true);
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return;
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}
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}
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pokemon.moveUsed(move);
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this.useMove(move, pokemon, target, sourceEffect);
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this.singleEvent('AfterMove', move, null, pokemon, target, move);
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if (!move.selfSwitch && target.hp > 0) this.runEvent('AfterMoveSelf', pokemon, target, move);
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},
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moveHit: function (target, pokemon, move, moveData, isSecondary, isSelf) {
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let damage;
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move = this.getMoveCopy(move);
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if (!moveData) moveData = move;
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let hitResult = true;
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if (move.target === 'all' && !isSelf) {
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hitResult = this.singleEvent('TryHitField', moveData, {}, target, pokemon, move);
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} else if ((move.target === 'foeSide' || move.target === 'allySide') && !isSelf) {
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hitResult = this.singleEvent('TryHitSide', moveData, {}, target.side, pokemon, move);
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} else if (target) {
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hitResult = this.singleEvent('TryHit', moveData, {}, target, pokemon, move);
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}
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if (!hitResult) {
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if (hitResult === false) this.add('-fail', target);
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return false;
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}
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if (target && !isSecondary && !isSelf) {
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hitResult = this.runEvent('TryPrimaryHit', target, pokemon, moveData);
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if (hitResult === 0) {
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// special Substitute flag
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hitResult = true;
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target = null;
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}
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}
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if (target && isSecondary && !moveData.self) {
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hitResult = true;
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}
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if (!hitResult) {
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return false;
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}
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if (target) {
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let didSomething = false;
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damage = this.getDamage(pokemon, target, moveData);
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if ((damage || damage === 0) && !target.fainted) {
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if (move.noFaint && damage >= target.hp) {
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damage = target.hp - 1;
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}
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damage = this.damage(damage, target, pokemon, move);
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if (!(damage || damage === 0)) {
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this.debug('damage interrupted');
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return false;
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}
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didSomething = true;
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}
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if (damage === false || damage === null) {
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if (damage === false && !isSecondary && !isSelf) {
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this.add('-fail', target);
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}
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this.debug('damage calculation interrupted');
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return false;
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}
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if (moveData.boosts && !target.fainted) {
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if (pokemon.volatiles['lockon'] && target === pokemon.volatiles['lockon'].source && target.isSemiInvulnerable() && !isSelf) {
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if (!isSecondary) this.add('-fail', target);
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return false;
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}
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hitResult = this.boost(moveData.boosts, target, pokemon, move);
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didSomething = didSomething || hitResult;
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}
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if (moveData.heal && !target.fainted) {
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let d = target.heal(Math.round(target.maxhp * moveData.heal[0] / moveData.heal[1]));
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if (!d && d !== 0) {
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this.add('-fail', target);
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this.debug('heal interrupted');
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return false;
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}
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this.add('-heal', target, target.getHealth);
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didSomething = true;
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}
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if (moveData.status) {
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hitResult = target.trySetStatus(moveData.status, pokemon, move);
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if (!hitResult && move.status) return hitResult;
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didSomething = didSomething || hitResult;
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}
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if (moveData.forceStatus) {
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hitResult = target.setStatus(moveData.forceStatus, pokemon, move);
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didSomething = didSomething || hitResult;
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}
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if (moveData.volatileStatus) {
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hitResult = target.addVolatile(moveData.volatileStatus, pokemon, move);
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didSomething = didSomething || hitResult;
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}
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if (moveData.sideCondition) {
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hitResult = target.side.addSideCondition(moveData.sideCondition, pokemon, move);
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didSomething = didSomething || hitResult;
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}
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if (moveData.weather) {
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hitResult = this.setWeather(moveData.weather, pokemon, move);
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didSomething = didSomething || hitResult;
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}
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if (moveData.pseudoWeather) {
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hitResult = this.addPseudoWeather(moveData.pseudoWeather, pokemon, move);
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didSomething = didSomething || hitResult;
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}
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if (moveData.forceSwitch) {
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if (this.canSwitch(target.side)) didSomething = true; // at least defer the fail message to later
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}
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if (moveData.selfSwitch) {
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if (this.canSwitch(pokemon.side)) didSomething = true; // at least defer the fail message to later
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}
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// Hit events
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// These are like the TryHit events, except we don't need a FieldHit event.
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// Scroll up for the TryHit event documentation, and just ignore the "Try" part. ;)
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hitResult = null;
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if (move.target === 'all' && !isSelf) {
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if (moveData.onHitField) hitResult = this.singleEvent('HitField', moveData, {}, target, pokemon, move);
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} else if ((move.target === 'foeSide' || move.target === 'allySide') && !isSelf) {
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if (moveData.onHitSide) hitResult = this.singleEvent('HitSide', moveData, {}, target.side, pokemon, move);
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} else {
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if (moveData.onHit) hitResult = this.singleEvent('Hit', moveData, {}, target, pokemon, move);
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if (!isSelf && !isSecondary) {
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this.runEvent('Hit', target, pokemon, move);
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}
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if (moveData.onAfterHit) hitResult = this.singleEvent('AfterHit', moveData, {}, target, pokemon, move);
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}
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if (!hitResult && !didSomething && !moveData.self && !moveData.selfdestruct) {
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if (!isSelf && !isSecondary) {
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if (hitResult === false || didSomething === false) this.add('-fail', target);
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}
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this.debug('move failed because it did nothing');
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return false;
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}
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}
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if (moveData.self) {
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let selfRoll;
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if (!isSecondary && moveData.self.boosts) selfRoll = this.random(100);
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// This is done solely to mimic in-game RNG behaviour. All self drops have a 100% chance of happening but still grab a random number.
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if (typeof moveData.self.chance === 'undefined' || selfRoll < moveData.self.chance) {
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this.moveHit(pokemon, pokemon, move, moveData.self, isSecondary, true);
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}
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}
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if (moveData.secondaries && this.runEvent('TrySecondaryHit', target, pokemon, moveData)) {
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for (let i = 0; i < moveData.secondaries.length; i++) {
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// We check here whether to negate the probable secondary status if it's burn or freeze.
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// In the game, this is checked and if true, the random number generator is not called.
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// That means that a move that does not share the type of the target can status it.
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// This means tri-attack can burn fire-types and freeze ice-types.
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// Unlike gen 1, though, paralysis works for all unless the target is immune to direct move (ie. ground-types and t-wave).
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if (!(moveData.secondaries[i].status && ['brn', 'frz'].includes(moveData.secondaries[i].status) && target && target.hasType(move.type))) {
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let effectChance = Math.floor(moveData.secondaries[i].chance * 255 / 100);
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if (typeof moveData.secondaries[i].chance === 'undefined' || this.random(256) <= effectChance) {
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this.moveHit(target, pokemon, move, moveData.secondaries[i], true, isSelf);
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}
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}
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}
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}
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if (target && target.hp > 0 && pokemon.hp > 0 && moveData.forceSwitch && this.canSwitch(target.side)) {
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hitResult = this.runEvent('DragOut', target, pokemon, move);
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if (hitResult) {
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this.dragIn(target.side, target.position);
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} else if (hitResult === false) {
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this.add('-fail', target);
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}
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}
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if (move.selfSwitch && pokemon.hp) {
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pokemon.switchFlag = move.selfSwitch;
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}
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return damage;
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},
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getDamage: function (pokemon, target, move, suppressMessages) {
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// First of all, we get the move.
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if (typeof move === 'string') move = this.getMove(move);
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if (typeof move === 'number') {
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move = {
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basePower: move,
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type: '???',
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category: 'Physical',
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willCrit: false,
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flags: {},
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};
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}
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// Let's test for immunities.
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if (!move.ignoreImmunity || (move.ignoreImmunity !== true && !move.ignoreImmunity[move.type])) {
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if (!target.runImmunity(move.type, true)) {
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return false;
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}
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}
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// Is it an OHKO move?
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if (move.ohko) {
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return target.maxhp;
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}
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// We edit the damage through move's damage callback
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if (move.damageCallback) {
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return move.damageCallback.call(this, pokemon, target);
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}
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// We take damage from damage=level moves
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if (move.damage === 'level') {
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return pokemon.level;
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}
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// If there's a fix move damage, we run it
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if (move.damage) {
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return move.damage;
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}
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// We check the category and typing to calculate later on the damage
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move.category = this.getCategory(move);
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if (!move.defensiveCategory) move.defensiveCategory = move.category;
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// '???' is typeless damage: used for Struggle and Confusion etc
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if (!move.type) move.type = '???';
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let type = move.type;
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// We get the base power and apply basePowerCallback if necessary
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let basePower = move.basePower;
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if (move.basePowerCallback) {
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basePower = move.basePowerCallback.call(this, pokemon, target, move);
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}
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// We check for Base Power
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if (!basePower) {
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if (basePower === 0) return; // Returning undefined means not dealing damage
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return basePower;
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}
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basePower = this.clampIntRange(basePower, 1);
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// Checking for the move's Critical Hit ratio
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move.critRatio = this.clampIntRange(move.critRatio, 0, 5);
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let critMult = [0, 16, 8, 4, 3, 2];
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move.crit = move.willCrit || false;
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if (typeof move.willCrit === 'undefined') {
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if (move.critRatio) {
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move.crit = (this.random(critMult[move.critRatio]) === 0);
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}
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}
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if (move.crit) {
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move.crit = this.runEvent('CriticalHit', target, null, move);
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}
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// Happens after crit calculation
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if (basePower) {
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if (move.isSelfHit) {
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move.type = move.baseMoveType;
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basePower = this.runEvent('BasePower', pokemon, target, move, basePower, true);
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move.type = '???';
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} else {
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basePower = this.runEvent('BasePower', pokemon, target, move, basePower, true);
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}
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if (move.basePowerModifier) {
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basePower *= move.basePowerModifier;
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}
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}
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if (!basePower) return 0;
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basePower = this.clampIntRange(basePower, 1);
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// We now check for attacker and defender
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let level = pokemon.level;
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// Using Beat Up
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if (move.allies) {
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this.add('-activate', pokemon, 'move: Beat Up', '[of] ' + move.allies[0].name);
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level = move.allies[0].level;
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}
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let attacker = pokemon;
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let defender = target;
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if (move.useTargetOffensive) attacker = target;
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if (move.useSourceDefensive) defender = pokemon;
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let atkType = (move.category === 'Physical') ? 'atk' : 'spa';
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let defType = (move.defensiveCategory === 'Physical') ? 'def' : 'spd';
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let unboosted = false;
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let noburndrop = false;
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// The move is a critical hit. Several things happen here.
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if (move.crit) {
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// Level is doubled for damage calculation.
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level *= 2;
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if (!suppressMessages) this.add('-crit', target);
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// Stat level modifications are ignored if they are neutral to or favour the defender.
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// Reflect and Light Screen defensive boosts are only ignored if stat level modifications were also ignored as a result of that.
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if (attacker.boosts[atkType] <= defender.boosts[defType]) {
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unboosted = true;
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noburndrop = true;
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}
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}
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// Get stats now.
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let attack = attacker.getStat(atkType, unboosted, noburndrop);
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let defense = defender.getStat(defType, unboosted);
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// Using Beat Up
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if (move.allies) {
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attack = move.allies.shift().template.baseStats.atk;
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defense = defender.template.baseStats.def;
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}
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// Moves that ignore offense and defense respectively.
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if (move.ignoreOffensive) {
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this.debug('Negating (sp)atk boost/penalty.');
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// The attack drop from the burn is only applied when attacker's attack level is higher than defender's defense level.
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attack = attacker.getStat(atkType, true, true);
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}
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if (move.ignoreDefensive) {
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this.debug('Negating (sp)def boost/penalty.');
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defense = target.getStat(defType, true, true);
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}
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// When either attack or defense are higher than 256, they are both divided by 4 and moded by 256.
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// This is what cuases the roll over bugs.
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if (attack >= 256 || defense >= 256) {
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attack = this.clampIntRange(Math.floor(attack / 4) % 256, 1);
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defense = this.clampIntRange(Math.floor(defense / 4) % 256, 1);
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}
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// Self destruct moves halve defense at this point.
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if (move.selfdestruct && defType === 'def') {
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defense = this.clampIntRange(Math.floor(defense / 2), 1);
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}
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// Let's go with the calculation now that we have what we need.
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// We do it step by step just like the game does.
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let damage = level * 2;
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damage = Math.floor(damage / 5);
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damage += 2;
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damage *= basePower;
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damage *= attack;
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damage = Math.floor(damage / defense);
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damage = this.clampIntRange(Math.floor(damage / 50), 1, 997);
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damage += 2;
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// Weather modifiers
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if ((this.isWeather('raindance') && type === 'Water') || (this.isWeather('sunnyday') && type === 'Fire')) {
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damage = Math.floor(damage * 1.5);
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} else if ((this.isWeather('raindance') && (type === 'Fire' || move.id === 'solarbeam')) || (this.isWeather('sunnyday') && type === 'Water')) {
|
|
damage = Math.floor(damage / 2);
|
|
}
|
|
|
|
// STAB damage bonus, the "???" type never gets STAB
|
|
if (type !== '???' && pokemon.hasType(type)) {
|
|
damage += Math.floor(damage / 2);
|
|
}
|
|
|
|
// Type effectiveness
|
|
let totalTypeMod = this.getEffectiveness(type, target);
|
|
// Super effective attack
|
|
if (totalTypeMod > 0) {
|
|
if (!suppressMessages) this.add('-supereffective', target);
|
|
damage *= 2;
|
|
if (totalTypeMod >= 2) {
|
|
damage *= 2;
|
|
}
|
|
}
|
|
// Resisted attack
|
|
if (totalTypeMod < 0) {
|
|
if (!suppressMessages) this.add('-resisted', target);
|
|
damage = Math.floor(damage / 2);
|
|
if (totalTypeMod <= -2) {
|
|
damage = Math.floor(damage / 2);
|
|
}
|
|
}
|
|
|
|
// Apply random factor is damage is greater than 1, except for Flail and Reversal
|
|
if (!move.noDamageVariance && damage > 1) {
|
|
damage *= this.random(217, 256);
|
|
damage = Math.floor(damage / 255);
|
|
}
|
|
|
|
// If damage is less than 1, we return 1
|
|
if (basePower && !Math.floor(damage)) {
|
|
return 1;
|
|
}
|
|
|
|
// We are done, this is the final damage
|
|
return damage;
|
|
},
|
|
damage: function (damage, target, source, effect) {
|
|
if (this.event) {
|
|
if (!target) target = this.event.target;
|
|
if (!source) source = this.event.source;
|
|
if (!effect) effect = this.effect;
|
|
}
|
|
if (!target || !target.hp) return 0;
|
|
effect = this.getEffect(effect);
|
|
if (!(damage || damage === 0)) return damage;
|
|
if (damage !== 0) damage = this.clampIntRange(damage, 1);
|
|
|
|
if (effect.id !== 'struggle-recoil') { // Struggle recoil is not affected by effects
|
|
if (effect.effectType === 'Weather' && !target.runStatusImmunity(effect.id)) {
|
|
this.debug('weather immunity');
|
|
return 0;
|
|
}
|
|
damage = this.runEvent('Damage', target, source, effect, damage);
|
|
if (!(damage || damage === 0)) {
|
|
this.debug('damage event failed');
|
|
return damage;
|
|
}
|
|
}
|
|
if (damage !== 0) damage = this.clampIntRange(damage, 1);
|
|
damage = target.damage(damage, source, effect);
|
|
if (source) source.lastDamage = damage;
|
|
let name = effect.fullname;
|
|
if (name === 'tox') name = 'psn';
|
|
switch (effect.id) {
|
|
case 'partiallytrapped':
|
|
this.add('-damage', target, target.getHealth, '[from] ' + this.effectData.sourceEffect.fullname, '[partiallytrapped]');
|
|
break;
|
|
default:
|
|
if (effect.effectType === 'Move') {
|
|
this.add('-damage', target, target.getHealth);
|
|
} else if (source && source !== target) {
|
|
this.add('-damage', target, target.getHealth, '[from] ' + effect.fullname, '[of] ' + source);
|
|
} else {
|
|
this.add('-damage', target, target.getHealth, '[from] ' + name);
|
|
}
|
|
break;
|
|
}
|
|
|
|
if (effect.drain && source) {
|
|
this.heal(Math.ceil(damage * effect.drain[0] / effect.drain[1]), source, target, 'drain');
|
|
}
|
|
|
|
if (target.fainted || target.hp <= 0) {
|
|
this.debug('instafaint: ' + this.faintQueue.map(entry => entry.target).map(pokemon => pokemon.name));
|
|
this.faintMessages(true);
|
|
target.faint();
|
|
} else {
|
|
damage = this.runEvent('AfterDamage', target, source, effect, damage);
|
|
}
|
|
|
|
return damage;
|
|
},
|
|
};
|