[Move] Fix bug for Spite and fully implement Eerie Spell (#2244)

* Bug fixes for spite, creates class to extend spite for eerie spell

* Comments for clarity, creates class to extend ReducePpMoveAttr

* Resolve reference error with AttackReducePpMoveAttr

* Shows move failed in a clearer way with showMoveText

* Localization of pp reduction moves

* Fixes issue of eerie spell reducing pp when ratio is 0

* Removes unnecessary phase replacement

* Remove partial implementation from eerie spell

* Adds locale entry for ppReduced to other languages

src/data/move.ts

@@ -4917,14 +4917,36 @@ export class CopyMoveAttr extends OverrideMoveEffectAttr {
   }
 }
 
+/**
+ *  Attribute used for moves that reduce PP of the target's last used move.
+ *  Used for Spite.
+ */
 export class ReducePpMoveAttr extends MoveEffectAttr {
+  protected reduction: number;
+  constructor(reduction: number) {
+    super();
+    this.reduction = reduction;
+  }
+
+  /**
+   * Reduces the PP of the target's last-used move by an amount based on this attribute instance's {@linkcode reduction}.
+   *
+   * @param user {@linkcode Pokemon} that used the attack
+   * @param target {@linkcode Pokemon} targeted by the attack
+   * @param move {@linkcode Move} being used
+   * @param args N/A
+   * @returns {boolean} true
+   */
   apply(user: Pokemon, target: Pokemon, move: Move, args: any[]): boolean {
     // Null checks can be skipped due to condition function
     const lastMove = target.getLastXMoves().find(() => true);
     const movesetMove = target.getMoveset().find(m => m.moveId === lastMove.move);
     const lastPpUsed = movesetMove.ppUsed;
-    movesetMove.ppUsed = Math.min(movesetMove.ppUsed + 4, movesetMove.getMovePp());
-    user.scene.queueMessage(`It reduced the PP of ${getPokemonMessage(target, `'s\n${movesetMove.getName()} by ${movesetMove.ppUsed - lastPpUsed}!`)}`);
+    movesetMove.ppUsed = Math.min(movesetMove.ppUsed + this.reduction, movesetMove.getMovePp());
+
+    const message = i18next.t("battle:ppReduced", {targetName: target.name, moveName: movesetMove.getName(), reduction: movesetMove.ppUsed - lastPpUsed});
+
+    user.scene.queueMessage(message);
 
     return true;
   }
@@ -4959,6 +4981,42 @@ export class ReducePpMoveAttr extends MoveEffectAttr {
   }
 }
 
+/**
+ *  Attribute used for moves that damage target, and then reduce PP of the target's last used move.
+ *  Used for Eerie Spell.
+ */
+export class AttackReducePpMoveAttr extends ReducePpMoveAttr {
+  constructor(reduction: number) {
+    super(reduction);
+  }
+
+  /**
+   * Checks if the target has used a move prior to the attack. PP-reduction is applied through the super class if so.
+   *
+   * @param user {@linkcode Pokemon} that used the attack
+   * @param target {@linkcode Pokemon} targeted by the attack
+   * @param move {@linkcode Move} being used
+   * @param args N/A
+   * @returns {boolean} true
+   */
+  apply(user: Pokemon, target: Pokemon, move: Move, args: any[]): boolean {
+    const lastMove = target.getLastXMoves().find(() => true);
+    if (lastMove) {
+      const movesetMove = target.getMoveset().find(m => m.moveId === lastMove.move);
+      if (Boolean(movesetMove?.getPpRatio())) {
+        super.apply(user, target, move, args);
+      }
+    }
+
+    return true;
+  }
+
+  // Override condition function to always perform damage. Instead, perform pp-reduction condition check in apply function above
+  getCondition(): MoveConditionFunc {
+    return (user, target, move) => true;
+  }
+}
+
 // TODO: Review this
 const targetMoveCopiableCondition: MoveConditionFunc = (user, target, move) => {
   const targetMoves = target.getMoveHistory().filter(m => !m.virtual);
@@ -5990,7 +6048,7 @@ export function initMoves() {
     new AttackMove(Moves.REVERSAL, Type.FIGHTING, MoveCategory.PHYSICAL, -1, 100, 15, -1, 0, 2)
       .attr(LowHpPowerAttr),
     new StatusMove(Moves.SPITE, Type.GHOST, 100, 10, -1, 0, 2)
-      .attr(ReducePpMoveAttr),
+      .attr(ReducePpMoveAttr, 4),
     new AttackMove(Moves.POWDER_SNOW, Type.ICE, MoveCategory.SPECIAL, 40, 100, 25, 10, 0, 2)
       .attr(StatusEffectAttr, StatusEffect.FREEZE)
       .target(MoveTarget.ALL_NEAR_ENEMIES),
@@ -7856,8 +7914,8 @@ export function initMoves() {
     new AttackMove(Moves.ASTRAL_BARRAGE, Type.GHOST, MoveCategory.SPECIAL, 120, 100, 5, -1, 0, 8)
       .target(MoveTarget.ALL_NEAR_ENEMIES),
     new AttackMove(Moves.EERIE_SPELL, Type.PSYCHIC, MoveCategory.SPECIAL, 80, 100, 5, 100, 0, 8)
-      .soundBased()
-      .partial(),
+      .attr(AttackReducePpMoveAttr, 3)
+      .soundBased(),
     new AttackMove(Moves.DIRE_CLAW, Type.POISON, MoveCategory.PHYSICAL, 80, 100, 15, 50, 0, 8)
       .attr(MultiStatusEffectAttr, [StatusEffect.POISON, StatusEffect.PARALYSIS, StatusEffect.SLEEP]),
     new AttackMove(Moves.PSYSHIELD_BASH, Type.PSYCHIC, MoveCategory.PHYSICAL, 70, 90, 10, 100, 0, 8)

src/locales/de/battle.ts

@@ -70,4 +70,5 @@ export const battle: SimpleTranslationEntries = {
   "statHarshlyFell": "sinkt stark",
   "statSeverelyFell": "sinkt drastisch",
   "statWontGoAnyLower": "kann nicht weiter sinken",
+  "ppReduced": "It reduced the PP of {{targetName}}'s\n{{moveName}} by {{reduction}}!",
 } as const;

src/locales/en/battle.ts

@@ -70,4 +70,5 @@ export const battle: SimpleTranslationEntries = {
   "statHarshlyFell": "harshly fell",
   "statSeverelyFell": "severely fell",
   "statWontGoAnyLower": "won't go any lower",
+  "ppReduced": "It reduced the PP of {{targetName}}'s\n{{moveName}} by {{reduction}}!",
 } as const;

src/locales/es/battle.ts

@@ -70,4 +70,5 @@ export const battle: SimpleTranslationEntries = {
   "statHarshlyFell": "harshly fell",
   "statSeverelyFell": "severely fell",
   "statWontGoAnyLower": "won't go any lower",
+  "ppReduced": "It reduced the PP of {{targetName}}'s\n{{moveName}} by {{reduction}}!",
 } as const;

src/locales/fr/battle.ts

@@ -70,4 +70,5 @@ export const battle: SimpleTranslationEntries = {
   "statHarshlyFell": "harshly fell",
   "statSeverelyFell": "severely fell",
   "statWontGoAnyLower": "won't go any lower",
+  "ppReduced": "It reduced the PP of {{targetName}}'s\n{{moveName}} by {{reduction}}!",
 } as const;

src/locales/it/battle.ts

@@ -70,4 +70,5 @@ export const battle: SimpleTranslationEntries = {
   "statHarshlyFell": "harshly fell",
   "statSeverelyFell": "severely fell",
   "statWontGoAnyLower": "won't go any lower",
+  "ppReduced": "It reduced the PP of {{targetName}}'s\n{{moveName}} by {{reduction}}!",
 } as const;

src/locales/ko/battle.ts

@@ -70,4 +70,5 @@ export const battle: SimpleTranslationEntries = {
   "statHarshlyFell": "[[가]] 크게 떨어졌다!",
   "statSeverelyFell": "[[가]] 매우 크게 떨어졌다!",
   "statWontGoAnyLower": "[[는]] 더 떨어지지 않는다!",
+  "ppReduced": "It reduced the PP of {{targetName}}'s\n{{moveName}} by {{reduction}}!",
 } as const;

src/locales/pt_BR/battle.ts

@@ -70,4 +70,5 @@ export const battle: SimpleTranslationEntries = {
   "statHarshlyFell": "diminuiu duramente",
   "statSeverelyFell": "diminuiu severamente",
   "statWontGoAnyLower": "não vai mais diminuir",
+  "ppReduced": "It reduced the PP of {{targetName}}'s\n{{moveName}} by {{reduction}}!",
 } as const;

src/locales/zh_CN/battle.ts

@@ -70,4 +70,5 @@ export const battle: SimpleTranslationEntries = {
   "statHarshlyFell": "大幅降低了！",
   "statSeverelyFell": "极大幅降低了！",
   "statWontGoAnyLower": "已经无法再降低了！",
+  "ppReduced": "It reduced the PP of {{targetName}}'s\n{{moveName}} by {{reduction}}!",
 } as const;

src/locales/zh_TW/battle.ts

@@ -67,4 +67,5 @@ export const battle: SimpleTranslationEntries = {
   "statHarshlyFell": "harshly fell",
   "statSeverelyFell": "severely fell",
   "statWontGoAnyLower": "won't go any lower",
+  "ppReduced": "It reduced the PP of {{targetName}}'s\n{{moveName}} by {{reduction}}!",
 } as const;

src/phases.ts

@@ -2581,6 +2581,11 @@ export class MovePhase extends BattlePhase {
       if (this.move.moveId && this.pokemon.summonData?.disabledMove === this.move.moveId) {
         this.scene.queueMessage(`${this.move.getName()} is disabled!`);
       }
+      if (this.move.ppUsed >= this.move.getMovePp()) { // if the move PP was reduced from Spite or otherwise, the move fails
+        this.fail();
+        this.showMoveText();
+        this.showFailedText();
+      }
       return this.end();
     }