Add fell stingers effect (#202)

* Add Fell Stinger Effect

* Update src/phases.ts

src/data/move.ts

@@ -1561,6 +1561,29 @@ export class StatChangeAttr extends MoveEffectAttr {
   }
 }
 
+export class PostVictoryStatChangeAttr extends MoveAttr {
+  private stats: BattleStat[];
+  private levels: integer;
+  private condition: MoveConditionFunc;
+  private showMessage: boolean;
+
+  constructor(stats: BattleStat | BattleStat[], levels: integer, selfTarget?: boolean, condition?: MoveConditionFunc, showMessage: boolean = true, firstHitOnly: boolean = false) {
+    super();
+    this.stats = typeof(stats) === 'number'
+      ? [ stats as BattleStat ]
+      : stats as BattleStat[];
+    this.levels = levels;
+    this.condition = condition || null;
+    this.showMessage = showMessage;
+  }
+  applyPostVictory(user: Pokemon, target: Pokemon, move: Move): void {
+    if(this.condition && !this.condition(user, target, move))
+      return false;
+    const statChangeAttr = new StatChangeAttr(this.stats, this.levels, this.showMessage);
+    statChangeAttr.apply(user, target, move);
+  }
+}
+
 export class AcupressureStatChangeAttr extends MoveEffectAttr {
   constructor() {
     super();
@@ -1575,7 +1598,7 @@ export class AcupressureStatChangeAttr extends MoveEffectAttr {
       return true;
     }
     return false;
-  }  
+  }
 }
 
 export class GrowthStatChangeAttr extends StatChangeAttr {
@@ -5565,7 +5588,7 @@ export function initMoves() {
       .attr(AddArenaTrapTagAttr, ArenaTagType.STICKY_WEB)
       .target(MoveTarget.ENEMY_SIDE),
     new AttackMove(Moves.FELL_STINGER, Type.BUG, MoveCategory.PHYSICAL, 50, 100, 25, -1, 0, 6)
-      .partial(),
+      .attr(PostVictoryStatChangeAttr, BattleStat.ATK, 3, true ),
     new AttackMove(Moves.PHANTOM_FORCE, Type.GHOST, MoveCategory.PHYSICAL, 90, 100, 10, -1, 0, 6)
       .attr(ChargeAttr, ChargeAnim.PHANTOM_FORCE_CHARGING, 'vanished\ninstantly!', BattlerTagType.HIDDEN)
       .ignoresProtect()

src/phases.ts

@@ -2,7 +2,7 @@ import BattleScene, { AnySound, bypassLogin, startingWave } from "./battle-scene
 import { default as Pokemon, PlayerPokemon, EnemyPokemon, PokemonMove, MoveResult, DamageResult, FieldPosition, HitResult, TurnMove } from "./field/pokemon";
 import * as Utils from './utils';
 import { Moves } from "./data/enums/moves";
-import { allMoves, applyMoveAttrs, BypassSleepAttr, ChargeAttr, applyFilteredMoveAttrs, HitsTagAttr, MissEffectAttr, MoveAttr, MoveEffectAttr, MoveFlags, MultiHitAttr, OverrideMoveEffectAttr, VariableAccuracyAttr, MoveTarget, OneHitKOAttr, getMoveTargets, MoveTargetSet, MoveEffectTrigger, CopyMoveAttr, AttackMove, SelfStatusMove, DelayedAttackAttr, RechargeAttr, PreMoveMessageAttr, HealStatusEffectAttr, IgnoreOpponentStatChangesAttr, NoEffectAttr, FixedDamageAttr, OneHitKOAccuracyAttr, ForceSwitchOutAttr, VariableTargetAttr } from "./data/move";
+import { allMoves, applyMoveAttrs, BypassSleepAttr, ChargeAttr, applyFilteredMoveAttrs, HitsTagAttr, MissEffectAttr, MoveAttr, MoveEffectAttr, MoveFlags, MultiHitAttr, OverrideMoveEffectAttr, VariableAccuracyAttr, MoveTarget, OneHitKOAttr, getMoveTargets, MoveTargetSet, MoveEffectTrigger, CopyMoveAttr, AttackMove, SelfStatusMove, DelayedAttackAttr, RechargeAttr, PreMoveMessageAttr, HealStatusEffectAttr, IgnoreOpponentStatChangesAttr, NoEffectAttr, FixedDamageAttr, PostVictoryStatChangeAttr, OneHitKOAccuracyAttr, ForceSwitchOutAttr, VariableTargetAttr } from "./data/move";
 import { Mode } from './ui/ui';
 import { Command } from "./ui/command-ui-handler";
 import { Stat } from "./data/pokemon-stat";
@@ -3142,8 +3142,16 @@ export class FaintPhase extends PokemonPhase {
     alivePlayField.forEach(p => applyPostKnockOutAbAttrs(PostKnockOutAbAttr, p, pokemon));
     if (pokemon.turnData?.attacksReceived?.length) {
       const defeatSource = this.scene.getPokemonById(pokemon.turnData.attacksReceived[0].sourceId);
-      if (defeatSource?.isOnField())
+      if (defeatSource?.isOnField()) {
         applyPostVictoryAbAttrs(PostVictoryAbAttr, defeatSource);
+        const pvmove = allMoves[pokemon.turnData.attacksReceived[0].move];
+        const pvattrs = pvmove.getAttrs(PostVictoryStatChangeAttr);
+        if (pvattrs.length) {
+          for (let pvattr of pvattrs) {
+            pvattr.applyPostVictory(defeatSource, defeatSource, pvmove);
+          }
+        }
+      }
     }
 
     if (this.player) {