Merge branch 'beta' into refactor/tests/manual-timeout-set

src/data/ability.ts

@@ -1798,6 +1798,61 @@ export class PostDefendStealHeldItemAbAttr extends PostDefendAbAttr {
   }
 }
 
+/**
+ * Base class for defining all {@linkcode Ability} Attributes after a status effect has been set.
+ * @see {@linkcode applyPostSetStatus()}.
+ */
+export class PostSetStatusAbAttr extends AbAttr {
+  /**
+   * Does nothing after a status condition is set.
+   * @param pokemon {@linkcode Pokemon} that status condition was set on.
+   * @param sourcePokemon {@linkcode Pokemon} that that set the status condition. Is `null` if status was not set by a Pokemon.
+   * @param passive Whether this ability is a passive.
+   * @param effect {@linkcode StatusEffect} that was set.
+   * @param args Set of unique arguments needed by this attribute.
+   * @returns `true` if application of the ability succeeds.
+   */
+  applyPostSetStatus(pokemon: Pokemon, sourcePokemon: Pokemon | null = null, passive: boolean, effect: StatusEffect, simulated: boolean, args: any[]) : boolean | Promise<boolean> {
+    return false;
+  }
+}
+
+/**
+ * If another Pokemon burns, paralyzes, poisons, or badly poisons this Pokemon,
+ * that Pokemon receives the same non-volatile status condition as part of this
+ * ability attribute. For Synchronize ability.
+ */
+export class SynchronizeStatusAbAttr extends PostSetStatusAbAttr {
+  /**
+   * If the `StatusEffect` that was set is Burn, Paralysis, Poison, or Toxic, and the status
+   * was set by a source Pokemon, set the source Pokemon's status to the same `StatusEffect`.
+   * @param pokemon {@linkcode Pokemon} that status condition was set on.
+   * @param sourcePokemon {@linkcode Pokemon} that that set the status condition. Is null if status was not set by a Pokemon.
+   * @param passive Whether this ability is a passive.
+   * @param effect {@linkcode StatusEffect} that was set.
+   * @param args Set of unique arguments needed by this attribute.
+   * @returns `true` if application of the ability succeeds.
+   */
+  override applyPostSetStatus(pokemon: Pokemon, sourcePokemon: Pokemon | null = null, passive: boolean, effect: StatusEffect, simulated: boolean, args: any[]): boolean {
+    /** Synchronizable statuses */
+    const syncStatuses = new Set<StatusEffect>([
+      StatusEffect.BURN,
+      StatusEffect.PARALYSIS,
+      StatusEffect.POISON,
+      StatusEffect.TOXIC
+    ]);
+
+    if (sourcePokemon && syncStatuses.has(effect)) {
+      if (!simulated) {
+        sourcePokemon.trySetStatus(effect, true, pokemon);
+      }
+      return true;
+    }
+
+    return false;
+  }
+}
+
 export class PostVictoryAbAttr extends AbAttr {
   applyPostVictory(pokemon: Pokemon, passive: boolean, simulated: boolean, args: any[]): boolean | Promise<boolean> {
     return false;
@@ -4677,6 +4732,10 @@ export function applyStatMultiplierAbAttrs(attrType: Constructor<StatMultiplierA
   pokemon: Pokemon, stat: BattleStat, statValue: Utils.NumberHolder, simulated: boolean = false, ...args: any[]): Promise<void> {
   return applyAbAttrsInternal<StatMultiplierAbAttr>(attrType, pokemon, (attr, passive) => attr.applyStatStage(pokemon, passive, simulated, stat, statValue, args), args);
 }
+export function applyPostSetStatusAbAttrs(attrType: Constructor<PostSetStatusAbAttr>,
+  pokemon: Pokemon, effect: StatusEffect, sourcePokemon?: Pokemon | null, simulated: boolean = false, ...args: any[]): Promise<void> {
+  return applyAbAttrsInternal<PostSetStatusAbAttr>(attrType, pokemon, (attr, passive) => attr.applyPostSetStatus(pokemon, sourcePokemon, passive, effect, simulated, args), args, false, simulated);
+}
 
 /**
  * Applies a field Stat multiplier attribute
@@ -4907,7 +4966,8 @@ export function initAbilities() {
       .attr(EffectSporeAbAttr),
     new Ability(Abilities.SYNCHRONIZE, 3)
       .attr(SyncEncounterNatureAbAttr)
-      .unimplemented(),
+      .attr(SynchronizeStatusAbAttr)
+      .partial(), // interaction with psycho shift needs work, keeping to old Gen interaction for now
     new Ability(Abilities.CLEAR_BODY, 3)
       .attr(ProtectStatAbAttr)
       .ignorable(),

src/data/move.ts

@@ -650,7 +650,7 @@ export default class Move implements Localizable {
   }
 
   /**
-   * Applies each {@linkcode MoveCondition} of this move to the params
+   * Applies each {@linkcode MoveCondition} function of this move to the params, determines if the move can be used prior to calling each attribute's apply()
    * @param user {@linkcode Pokemon} to apply conditions to
    * @param target {@linkcode Pokemon} to apply conditions to
    * @param move {@linkcode Move} to apply conditions to
@@ -2091,21 +2091,20 @@ export class PsychoShiftEffectAttr extends MoveEffectAttr {
 
     if (target.status) {
       return false;
-    }
-    //@ts-ignore - how can target.status.effect be checked when we return `false` before when it's defined?
-    if (!target.status || (target.status.effect === statusToApply && move.chance < 0)) { // TODO: resolve ts-ignore
-      const statusAfflictResult = target.trySetStatus(statusToApply, true, user);
-      if (statusAfflictResult) {
+    } else {
+      const canSetStatus = target.canSetStatus(statusToApply, true, false, user);
+
+      if (canSetStatus) {
         if (user.status) {
           user.scene.queueMessage(getStatusEffectHealText(user.status.effect, getPokemonNameWithAffix(user)));
         }
         user.resetStatus();
         user.updateInfo();
-      }
-      return statusAfflictResult;
+        target.trySetStatus(statusToApply, true, user);
       }
 
-    return false;
+      return canSetStatus;
+    }
   }
 
   getTargetBenefitScore(user: Pokemon, target: Pokemon, move: Move): number {
@@ -5296,6 +5295,21 @@ export class ForceSwitchOutAttr extends MoveEffectAttr {
   }
 }
 
+
+export class ChillyReceptionAttr extends ForceSwitchOutAttr {
+
+  // using inherited constructor
+
+  apply(user: Pokemon, target: Pokemon, move: Move, args: any[]): Promise<boolean> {
+    user.scene.arena.trySetWeather(WeatherType.SNOW, true);
+    return super.apply(user, target, move, args);
+  }
+
+  getCondition(): MoveConditionFunc {
+    // chilly reception move will go through if the weather is change-able to snow, or the user can switch out, else move will fail
+    return (user, target, move) => user.scene.arena.trySetWeather(WeatherType.SNOW, true) || super.getSwitchOutCondition()(user, target, move);
+  }
+}
 export class RemoveTypeAttr extends MoveEffectAttr {
 
   private removedType: Type;
@@ -9485,10 +9499,9 @@ export function initMoves() {
       .makesContact(),
     new SelfStatusMove(Moves.SHED_TAIL, Type.NORMAL, -1, 10, -1, 0, 9)
       .unimplemented(),
-    new StatusMove(Moves.CHILLY_RECEPTION, Type.ICE, -1, 10, -1, 0, 9)
-      .attr(WeatherChangeAttr, WeatherType.SNOW)
-      .attr(ForceSwitchOutAttr, true, false)
-      .target(MoveTarget.BOTH_SIDES),
+    new SelfStatusMove(Moves.CHILLY_RECEPTION, Type.ICE, -1, 10, -1, 0, 9)
+      .attr(PreMoveMessageAttr, (user, move) => i18next.t("moveTriggers:chillyReception", {pokemonName: getPokemonNameWithAffix(user)}))
+      .attr(ChillyReceptionAttr, true, false),
     new SelfStatusMove(Moves.TIDY_UP, Type.NORMAL, -1, 10, -1, 0, 9)
       .attr(StatStageChangeAttr, [ Stat.ATK, Stat.SPD ], 1, true, null, true, true)
       .attr(RemoveArenaTrapAttr, true)

src/field/arena.ts

@@ -33,6 +33,7 @@ export class Arena {
   public tags: ArenaTag[];
   public bgm: string;
   public ignoreAbilities: boolean;
+  public ignoringEffectSource: BattlerIndex | null;
 
   private lastTimeOfDay: TimeOfDay;
 
@@ -569,8 +570,9 @@ export class Arena {
     }
   }
 
-  setIgnoreAbilities(ignoreAbilities: boolean = true): void {
+  setIgnoreAbilities(ignoreAbilities: boolean, ignoringEffectSource: BattlerIndex | null = null): void {
     this.ignoreAbilities = ignoreAbilities;
+    this.ignoringEffectSource = ignoreAbilities ? ignoringEffectSource : null;
   }
 
   /**

src/field/pokemon.ts

@@ -20,7 +20,7 @@ import { reverseCompatibleTms, tmSpecies, tmPoolTiers } from "../data/tms";
 import { BattlerTag, BattlerTagLapseType, EncoreTag, GroundedTag, HighestStatBoostTag, SubstituteTag, TypeImmuneTag, getBattlerTag, SemiInvulnerableTag, TypeBoostTag, MoveRestrictionBattlerTag, ExposedTag, DragonCheerTag, CritBoostTag, TrappedTag, TarShotTag } from "../data/battler-tags";
 import { WeatherType } from "../data/weather";
 import { ArenaTagSide, NoCritTag, WeakenMoveScreenTag } from "../data/arena-tag";
-import { Ability, AbAttr, StatMultiplierAbAttr, BlockCritAbAttr, BonusCritAbAttr, BypassBurnDamageReductionAbAttr, FieldPriorityMoveImmunityAbAttr, IgnoreOpponentStatStagesAbAttr, MoveImmunityAbAttr, PreDefendFullHpEndureAbAttr, ReceivedMoveDamageMultiplierAbAttr, ReduceStatusEffectDurationAbAttr, StabBoostAbAttr, StatusEffectImmunityAbAttr, TypeImmunityAbAttr, WeightMultiplierAbAttr, allAbilities, applyAbAttrs, applyStatMultiplierAbAttrs, applyPreApplyBattlerTagAbAttrs, applyPreAttackAbAttrs, applyPreDefendAbAttrs, applyPreSetStatusAbAttrs, UnsuppressableAbilityAbAttr, SuppressFieldAbilitiesAbAttr, NoFusionAbilityAbAttr, MultCritAbAttr, IgnoreTypeImmunityAbAttr, DamageBoostAbAttr, IgnoreTypeStatusEffectImmunityAbAttr, ConditionalCritAbAttr, applyFieldStatMultiplierAbAttrs, FieldMultiplyStatAbAttr, AddSecondStrikeAbAttr, UserFieldStatusEffectImmunityAbAttr, UserFieldBattlerTagImmunityAbAttr, BattlerTagImmunityAbAttr, MoveTypeChangeAbAttr, FullHpResistTypeAbAttr, applyCheckTrappedAbAttrs, CheckTrappedAbAttr } from "../data/ability";
+import { Ability, AbAttr, StatMultiplierAbAttr, BlockCritAbAttr, BonusCritAbAttr, BypassBurnDamageReductionAbAttr, FieldPriorityMoveImmunityAbAttr, IgnoreOpponentStatStagesAbAttr, MoveImmunityAbAttr, PreDefendFullHpEndureAbAttr, ReceivedMoveDamageMultiplierAbAttr, ReduceStatusEffectDurationAbAttr, StabBoostAbAttr, StatusEffectImmunityAbAttr, TypeImmunityAbAttr, WeightMultiplierAbAttr, allAbilities, applyAbAttrs, applyStatMultiplierAbAttrs, applyPreApplyBattlerTagAbAttrs, applyPreAttackAbAttrs, applyPreDefendAbAttrs, applyPreSetStatusAbAttrs, UnsuppressableAbilityAbAttr, SuppressFieldAbilitiesAbAttr, NoFusionAbilityAbAttr, MultCritAbAttr, IgnoreTypeImmunityAbAttr, DamageBoostAbAttr, IgnoreTypeStatusEffectImmunityAbAttr, ConditionalCritAbAttr, applyFieldStatMultiplierAbAttrs, FieldMultiplyStatAbAttr, AddSecondStrikeAbAttr, UserFieldStatusEffectImmunityAbAttr, UserFieldBattlerTagImmunityAbAttr, BattlerTagImmunityAbAttr, MoveTypeChangeAbAttr, FullHpResistTypeAbAttr, applyCheckTrappedAbAttrs, CheckTrappedAbAttr, PostSetStatusAbAttr, applyPostSetStatusAbAttrs } from "../data/ability";
 import PokemonData from "../system/pokemon-data";
 import { BattlerIndex } from "../battle";
 import { Mode } from "../ui/ui";
@@ -1364,7 +1364,8 @@ export default abstract class Pokemon extends Phaser.GameObjects.Container {
     if (this.isFusion() && ability.hasAttr(NoFusionAbilityAbAttr)) {
       return false;
     }
-    if (this.scene?.arena.ignoreAbilities && ability.isIgnorable) {
+    const arena = this.scene?.arena;
+    if (arena.ignoreAbilities && arena.ignoringEffectSource !== this.getBattlerIndex() && ability.isIgnorable) {
       return false;
     }
     if (this.summonData?.abilitySuppressed && !ability.hasAttr(UnsuppressableAbilityAbAttr)) {
@@ -3365,7 +3366,7 @@ export default abstract class Pokemon extends Phaser.GameObjects.Container {
     }
 
     if (asPhase) {
-      this.scene.unshiftPhase(new ObtainStatusEffectPhase(this.scene, this.getBattlerIndex(), effect, cureTurn, sourceText!, sourcePokemon!)); // TODO: are these bangs correct?
+      this.scene.unshiftPhase(new ObtainStatusEffectPhase(this.scene, this.getBattlerIndex(), effect, cureTurn, sourceText, sourcePokemon));
       return true;
     }
 
@@ -3399,6 +3400,7 @@ export default abstract class Pokemon extends Phaser.GameObjects.Container {
 
     if (effect !== StatusEffect.FAINT) {
       this.scene.triggerPokemonFormChange(this, SpeciesFormChangeStatusEffectTrigger, true);
+      applyPostSetStatusAbAttrs(PostSetStatusAbAttr, this, effect, sourcePokemon);
     }
 
     return true;

src/locales/de/move-trigger.json

@@ -65,6 +65,7 @@
   "suppressAbilities": "Die Fähigkeit von {{pokemonName}} wirkt nicht mehr!",
   "revivalBlessing": "{{pokemonName}} ist wieder fit und kampfbereit!",
   "swapArenaTags": "{{pokemonName}} hat die Effekte, die auf den beiden Seiten des Kampffeldes wirken, miteinander getauscht!",
+  "chillyReception": "{{pokemonName}} erzählt einen schlechten Witz, der nicht besonders gut ankommt...",
   "exposedMove": "{{pokemonName}} erkennt {{targetPokemonName}}!",
   "safeguard": "{{targetName}} wird durch Bodyguard geschützt!",
   "afterYou": "{{targetName}} lässt sich auf Galanterie ein!"

src/locales/en/move-trigger.json

@@ -66,6 +66,7 @@
   "suppressAbilities": "{{pokemonName}}'s ability\nwas suppressed!",
   "revivalBlessing": "{{pokemonName}} was revived!",
   "swapArenaTags": "{{pokemonName}} swapped the battle effects affecting each side of the field!",
+  "chillyReception": "{{pokemonName}} is preparing to tell a chillingly bad joke!",
   "exposedMove": "{{pokemonName}} identified\n{{targetPokemonName}}!",
   "safeguard": "{{targetName}} is protected by Safeguard!",
   "substituteOnOverlap": "{{pokemonName}} already\nhas a substitute!",

src/locales/fr/move-trigger.json

@@ -66,6 +66,7 @@
   "suppressAbilities": "Le talent de {{pokemonName}}\na été rendu inactif !",
   "revivalBlessing": "{{pokemonName}} a repris connaissance\net est prêt à se battre de nouveau !",
   "swapArenaTags": "Les effets affectant chaque côté du terrain\nont été échangés par {{pokemonName}} !",
+  "chillyReception": "{{pokemonName}} s’apprête\nà faire un mauvais jeu de mots…",
   "exposedMove": "{{targetPokemonName}} est identifié\npar {{pokemonName}} !",
   "safeguard": "{{targetName}} est protégé\npar la capacité Rune Protect !",
   "substituteOnOverlap": "{{pokemonName}} a déjà\nun clone !",

src/locales/it/move-trigger.json

@@ -66,6 +66,7 @@
   "revivalBlessing": "{{pokemonName}} torna in forze!",
   "swapArenaTags": "{{pokemonName}} ha invertito gli effetti attivi\nnelle due metà del campo!",
   "exposedMove": "{{pokemonName}} ha identificato\n{{targetPokemonName}}!",
+  "chillyReception": "{{pokemonName}} sta per fare una battuta!",
   "safeguard": "Salvaguardia protegge {{targetName}}!",
   "afterYou": "{{pokemonName}} approfitta della cortesia!"
 }

src/locales/ja/move-trigger.json

@@ -64,6 +64,8 @@
   "copyType": "{{pokemonName}}は　{{targetPokemonName}}と\n同じタイプに　なった！",
   "suppressAbilities": "{{pokemonName}}の　特性が　効かなくなった！",
   "revivalBlessing": "{{pokemonName}}は\n復活して　戦えるようになった！",
+  "swapArenaTags": "{{pokemonName}}は\nお互いの　場の効果を　入れ替えた！",
+  "chillyReception": "{{pokemonName}}は\n寒い　ギャグを　かました！",
   "swapArenaTags": "{{pokemonName}}は\nお互いの　場の　効果を　入れ替えた！",
   "exposedMove": "{{pokemonName}}は {{targetPokemonName}}の\n正体を　見破った！",
   "afterYou": "{{pokemonName}}は\nお言葉に　甘えることにした！"

src/locales/ko/move-trigger.json

@@ -66,6 +66,7 @@
   "suppressAbilities": "{{pokemonName}}의\n특성이 효과를 발휘하지 못하게 되었다!",
   "revivalBlessing": "{{pokemonName}}[[는]]\n정신을 차려 싸울 수 있게 되었다!",
   "swapArenaTags": "{{pokemonName}}[[는]]\n서로의 필드 효과를 교체했다!",
+  "chillyReception": "{{pokemonName}}[[는]] 썰렁한 개그를 선보였다!",
   "exposedMove": "{{pokemonName}}[[는]]\n{{targetPokemonName}}의 정체를 꿰뚫어 보았다!",
   "safeguard": "{{targetName}}[[는]] 신비의 베일이 지켜 주고 있다!",
   "afterYou": "{{pokemonName}}[[는]]\n배려를 받아들이기로 했다!"

src/locales/pt_BR/move-trigger.json

@@ -61,6 +61,7 @@
   "suppressAbilities": "A habilidade de {{pokemonName}}\nfoi suprimida!",
   "revivalBlessing": "{{pokemonName}} foi reanimado!",
   "swapArenaTags": "{{pokemonName}} trocou os efeitos de batalha que afetam cada lado do campo!",
+  "chillyReception": "{{pokemonName}} está prestes a contar uma piada gelada!",
   "exposedMove": "{{pokemonName}} identificou\n{{targetPokemonName}}!",
   "safeguard": "{{targetName}} está protegido por Safeguard!",
   "afterYou": "{{pokemonName}} aceitou a gentil oferta!"

src/locales/zh_CN/move-trigger.json

@@ -65,6 +65,7 @@
   "suppressAbilities": "{{pokemonName}}的特性\n变得无效了！",
   "revivalBlessing": "{{pokemonName}}复活了！",
   "swapArenaTags": "{{pokemonName}}\n交换了双方的场地效果！",
+  "chillyReception": "{{pokemonName}}\n说出了冷笑话！",
   "exposedMove": "{{pokemonName}}识破了\n{{targetPokemonName}}的原型！",
   "safeguard": "{{targetName}}\n正受到神秘之幕的保护！",
   "afterYou": "{{pokemonName}}\n接受了对手的好意！"

src/locales/zh_TW/move-trigger.json

@@ -65,6 +65,7 @@
   "suppressAbilities": "{{pokemonName}}的特性\n變得無效了！",
   "revivalBlessing": "{{pokemonName}}復活了！",
   "swapArenaTags": "{{pokemonName}}\n交換了雙方的場地效果！",
+  "chillyReception": "{{pokemonName}}\n說了冷笑話！",
   "exposedMove": "{{pokemonName}}識破了\n{{targetPokemonName}}的原形！",
   "safeguard": "{{targetName}}\n正受到神秘之幕的保護！",
   "afterYou": "{{pokemonName}}\n接受了對手的好意！"

src/phases/move-phase.ts

@@ -74,7 +74,7 @@ export class MovePhase extends BattlePhase {
 
     if (!this.followUp) {
       if (this.move.getMove().checkFlag(MoveFlags.IGNORE_ABILITIES, this.pokemon, null)) {
-        this.scene.arena.setIgnoreAbilities();
+        this.scene.arena.setIgnoreAbilities(true, this.pokemon.getBattlerIndex());
       }
     } else {
       this.pokemon.turnData.hitsLeft = 0; // TODO: is `0` correct?

src/phases/obtain-status-effect-phase.ts

@@ -9,24 +9,24 @@ import { PokemonPhase } from "./pokemon-phase";
 import { PostTurnStatusEffectPhase } from "./post-turn-status-effect-phase";
 
 export class ObtainStatusEffectPhase extends PokemonPhase {
-  private statusEffect: StatusEffect | undefined;
-  private cureTurn: integer | null;
-  private sourceText: string | null;
-  private sourcePokemon: Pokemon | null;
+  private statusEffect?: StatusEffect | undefined;
+  private cureTurn?: integer | null;
+  private sourceText?: string | null;
+  private sourcePokemon?: Pokemon | null;
 
-  constructor(scene: BattleScene, battlerIndex: BattlerIndex, statusEffect?: StatusEffect, cureTurn?: integer | null, sourceText?: string, sourcePokemon?: Pokemon) {
+  constructor(scene: BattleScene, battlerIndex: BattlerIndex, statusEffect?: StatusEffect, cureTurn?: integer | null, sourceText?: string | null, sourcePokemon?: Pokemon | null) {
     super(scene, battlerIndex);
 
     this.statusEffect = statusEffect;
-    this.cureTurn = cureTurn!; // TODO: is this bang correct?
-    this.sourceText = sourceText!; // TODO: is this bang correct?
-    this.sourcePokemon = sourcePokemon!; // For tracking which Pokemon caused the status effect // TODO: is this bang correct?
+    this.cureTurn = cureTurn;
+    this.sourceText = sourceText;
+    this.sourcePokemon = sourcePokemon; // For tracking which Pokemon caused the status effect
   }
 
   start() {
     const pokemon = this.getPokemon();
-    if (!pokemon?.status) {
-      if (pokemon?.trySetStatus(this.statusEffect, false, this.sourcePokemon)) {
+    if (pokemon && !pokemon.status) {
+      if (pokemon.trySetStatus(this.statusEffect, false, this.sourcePokemon)) {
         if (this.cureTurn) {
           pokemon.status!.cureTurn = this.cureTurn; // TODO: is this bang correct?
         }
@@ -40,8 +40,8 @@ export class ObtainStatusEffectPhase extends PokemonPhase {
         });
         return;
       }
-    } else if (pokemon.status.effect === this.statusEffect) {
-      this.scene.queueMessage(getStatusEffectOverlapText(this.statusEffect, getPokemonNameWithAffix(pokemon)));
+    } else if (pokemon.status?.effect === this.statusEffect) {
+      this.scene.queueMessage(getStatusEffectOverlapText(this.statusEffect ?? StatusEffect.NONE, getPokemonNameWithAffix(pokemon)));
     }
     this.end();
   }

src/test/abilities/synchronize.test.ts

@@ -0,0 +1,109 @@
+import { StatusEffect } from "#app/data/status-effect";
+import GameManager from "#app/test/utils/gameManager";
+import { Abilities } from "#enums/abilities";
+import { Moves } from "#enums/moves";
+import { Species } from "#enums/species";
+import Phaser from "phaser";
+import { afterEach, beforeAll, beforeEach, describe, expect, it } from "vitest";
+
+describe("Abilities - Synchronize", () => {
+  let phaserGame: Phaser.Game;
+  let game: GameManager;
+
+  beforeAll(() => {
+    phaserGame = new Phaser.Game({
+      type: Phaser.HEADLESS,
+    });
+  });
+
+  afterEach(() => {
+    game.phaseInterceptor.restoreOg();
+  });
+
+  beforeEach(() => {
+    game = new GameManager(phaserGame);
+
+    game.override
+      .battleType("single")
+      .startingLevel(100)
+      .enemySpecies(Species.MAGIKARP)
+      .enemyAbility(Abilities.SYNCHRONIZE)
+      .moveset([Moves.SPLASH, Moves.THUNDER_WAVE, Moves.SPORE, Moves.PSYCHO_SHIFT])
+      .ability(Abilities.NO_GUARD);
+  }, 20000);
+
+  it("does not trigger when no status is applied by opponent Pokemon", async () => {
+    await game.classicMode.startBattle([Species.FEEBAS]);
+
+    game.move.select(Moves.SPLASH);
+    await game.phaseInterceptor.to("BerryPhase");
+
+    expect(game.scene.getParty()[0].status).toBeUndefined();
+    expect(game.phaseInterceptor.log).not.toContain("ShowAbilityPhase");
+  }, 20000);
+
+  it("sets the status of the source pokemon to Paralysis when paralyzed by it", async () => {
+    await game.classicMode.startBattle([Species.FEEBAS]);
+
+    game.move.select(Moves.THUNDER_WAVE);
+    await game.phaseInterceptor.to("BerryPhase");
+
+    expect(game.scene.getParty()[0].status?.effect).toBe(StatusEffect.PARALYSIS);
+    expect(game.scene.getEnemyParty()[0].status?.effect).toBe(StatusEffect.PARALYSIS);
+    expect(game.phaseInterceptor.log).toContain("ShowAbilityPhase");
+  }, 20000);
+
+  it("does not trigger on Sleep", async () => {
+    await game.classicMode.startBattle();
+
+    game.move.select(Moves.SPORE);
+
+    await game.phaseInterceptor.to("BerryPhase");
+
+    expect(game.scene.getParty()[0].status?.effect).toBeUndefined();
+    expect(game.scene.getEnemyParty()[0].status?.effect).toBe(StatusEffect.SLEEP);
+    expect(game.phaseInterceptor.log).not.toContain("ShowAbilityPhase");
+  }, 20000);
+
+  it("does not trigger when Pokemon is statused by Toxic Spikes", async () => {
+    game.override
+      .ability(Abilities.SYNCHRONIZE)
+      .enemyAbility(Abilities.BALL_FETCH)
+      .enemyMoveset(Array(4).fill(Moves.TOXIC_SPIKES));
+
+    await game.classicMode.startBattle([Species.FEEBAS, Species.MILOTIC]);
+
+    game.move.select(Moves.SPLASH);
+    await game.toNextTurn();
+
+    game.doSwitchPokemon(1);
+    await game.phaseInterceptor.to("BerryPhase");
+
+    expect(game.scene.getParty()[0].status?.effect).toBe(StatusEffect.POISON);
+    expect(game.scene.getEnemyParty()[0].status?.effect).toBeUndefined();
+    expect(game.phaseInterceptor.log).not.toContain("ShowAbilityPhase");
+  }, 20000);
+
+  it("shows ability even if it fails to set the status of the opponent Pokemon", async () => {
+    await game.classicMode.startBattle([Species.PIKACHU]);
+
+    game.move.select(Moves.THUNDER_WAVE);
+    await game.phaseInterceptor.to("BerryPhase");
+
+    expect(game.scene.getParty()[0].status?.effect).toBeUndefined();
+    expect(game.scene.getEnemyParty()[0].status?.effect).toBe(StatusEffect.PARALYSIS);
+    expect(game.phaseInterceptor.log).toContain("ShowAbilityPhase");
+  }, 20000);
+
+  it("should activate with Psycho Shift after the move clears the status", async () => {
+    game.override.statusEffect(StatusEffect.PARALYSIS);
+    await game.classicMode.startBattle();
+
+    game.move.select(Moves.PSYCHO_SHIFT);
+    await game.phaseInterceptor.to("BerryPhase");
+
+    expect(game.scene.getParty()[0].status?.effect).toBe(StatusEffect.PARALYSIS); // keeping old gen < V impl for now since it's buggy otherwise
+    expect(game.scene.getEnemyParty()[0].status?.effect).toBe(StatusEffect.PARALYSIS);
+    expect(game.phaseInterceptor.log).toContain("ShowAbilityPhase");
+  }, 20000);
+});

src/test/moves/chilly_reception.test.ts

@@ -0,0 +1,71 @@
+import { Abilities } from "#app/enums/abilities";
+import { Moves } from "#enums/moves";
+import { Species } from "#enums/species";
+import { WeatherType } from "#enums/weather-type";
+import GameManager from "#test/utils/gameManager";
+import Phaser from "phaser";
+import { afterEach, beforeAll, beforeEach, describe, expect, it } from "vitest";
+
+const TIMEOUT = 20 * 1000;
+
+describe("Moves - Chilly Reception", () => {
+  let phaserGame: Phaser.Game;
+  let game: GameManager;
+
+  beforeAll(() => {
+    phaserGame = new Phaser.Game({
+      type: Phaser.HEADLESS,
+    });
+  });
+
+  afterEach(() => {
+    game.phaseInterceptor.restoreOg();
+  });
+
+  beforeEach(() => {
+    game = new GameManager(phaserGame);
+    game.override.battleType("single")
+      .moveset([Moves.CHILLY_RECEPTION, Moves.SNOWSCAPE])
+      .enemyMoveset(Array(4).fill(Moves.SPLASH))
+      .enemyAbility(Abilities.NONE)
+      .ability(Abilities.NONE);
+
+  });
+
+  it("should still change the weather if user can't switch out", async () => {
+    await game.classicMode.startBattle([Species.SLOWKING]);
+
+    game.move.select(Moves.CHILLY_RECEPTION);
+
+    await game.phaseInterceptor.to("BerryPhase", false);
+    expect(game.scene.arena.weather?.weatherType).toBe(WeatherType.SNOW);
+  }, TIMEOUT);
+
+  it("should switch out even if it's snowing", async () => {
+    await game.classicMode.startBattle([Species.SLOWKING, Species.MEOWTH]);
+    // first turn set up snow with snowscape, try chilly reception on second turn
+    game.move.select(Moves.SNOWSCAPE);
+    await game.phaseInterceptor.to("BerryPhase", false);
+    expect(game.scene.arena.weather?.weatherType).toBe(WeatherType.SNOW);
+
+    await game.phaseInterceptor.to("TurnInitPhase", false);
+    game.move.select(Moves.CHILLY_RECEPTION);
+    game.doSelectPartyPokemon(1);
+
+    await game.phaseInterceptor.to("BerryPhase", false);
+    expect(game.scene.arena.weather?.weatherType).toBe(WeatherType.SNOW);
+    expect(game.scene.getPlayerField()[0].species.speciesId).toBe(Species.MEOWTH);
+  }, TIMEOUT);
+
+  it("happy case - switch out and weather changes", async () => {
+
+    await game.classicMode.startBattle([Species.SLOWKING, Species.MEOWTH]);
+
+    game.move.select(Moves.CHILLY_RECEPTION);
+    game.doSelectPartyPokemon(1);
+
+    await game.phaseInterceptor.to("BerryPhase", false);
+    expect(game.scene.arena.weather?.weatherType).toBe(WeatherType.SNOW);
+    expect(game.scene.getPlayerField()[0].species.speciesId).toBe(Species.MEOWTH);
+  }, TIMEOUT);
+});