[Enhancement] Target Selection also highlights target's held items (#3448)

* Target Pokemon's held items flash with the Pokemon during target selection

* Fixed typedocs issues and adjusted animation

* removed .js from imports

* removed .js from imports

* Slowed down animation + fixed bug

* Implemented Torranx's fixes + slightly widened the range for alpha values

* Apply suggestions from code review

Co-authored-by: Amani H. <109637146+xsn34kzx@users.noreply.github.com>

* Additional suggestions from code review

* Update src/battle-scene.ts

Co-authored-by: Adrian T. <68144167+torranx@users.noreply.github.com>

---------

Co-authored-by: Frutescens <info@laptop>
Co-authored-by: Amani H. <109637146+xsn34kzx@users.noreply.github.com>
Co-authored-by: Adrian T. <68144167+torranx@users.noreply.github.com>

src/battle-scene.ts

@@ -791,10 +791,11 @@ export default class BattleScene extends SceneBase {
 
   /**
    * Returns the ModifierBar of this scene, which is declared private and therefore not accessible elsewhere
+   * @param isEnemy Whether to return the enemy's modifier bar
    * @returns {ModifierBar}
    */
-  getModifierBar(): ModifierBar {
-    return this.modifierBar;
+  getModifierBar(isEnemy?: boolean): ModifierBar {
+    return isEnemy ? this.enemyModifierBar : this.modifierBar;
   }
 
   // store info toggles to be accessible by the ui

src/modifier/modifier.ts

@@ -22,12 +22,12 @@ import { FormChangeItem, SpeciesFormChangeItemTrigger } from "../data/pokemon-fo
 import { Nature } from "#app/data/nature";
 import Overrides from "#app/overrides";
 import { ModifierType, modifierTypes } from "./modifier-type";
-import { Command } from "#app/ui/command-ui-handler.js";
+import { Command } from "#app/ui/command-ui-handler";
 import { Species } from "#enums/species";
 import i18next from "i18next";
 
-import { allMoves } from "#app/data/move.js";
-import { Abilities } from "#app/enums/abilities.js";
+import { allMoves } from "#app/data/move";
+import { Abilities } from "#app/enums/abilities";
 
 export type ModifierPredicate = (modifier: Modifier) => boolean;
 
@@ -506,6 +506,7 @@ export abstract class PokemonHeldItemModifier extends PersistentModifier {
       if (pokemon) {
         const pokemonIcon = scene.addPokemonIcon(pokemon, -2, 10, 0, 0.5);
         container.add(pokemonIcon);
+        container.setName(pokemon.id.toString());
       }
 
       const item = scene.add.sprite(16, this.virtualStackCount ? 8 : 16, "items");

src/ui/target-select-ui-handler.ts

@@ -6,7 +6,8 @@ import * as Utils from "../utils";
 import { getMoveTargets } from "../data/move";
 import {Button} from "#enums/buttons";
 import { Moves } from "#enums/moves";
-import Pokemon from "#app/field/pokemon.js";
+import Pokemon from "#app/field/pokemon";
+import { ModifierBar } from "#app/modifier/modifier";
 
 export type TargetSelectCallback = (targets: BattlerIndex[]) => void;
 
@@ -19,6 +20,7 @@ export default class TargetSelectUiHandler extends UiHandler {
   private targets: BattlerIndex[];
   private targetsHighlighted: Pokemon[];
   private targetFlashTween: Phaser.Tweens.Tween | null;
+  private enemyModifiers: ModifierBar;
   private targetBattleInfoMoveTween: Phaser.Tweens.Tween[] = [];
 
   constructor(scene: BattleScene) {
@@ -48,6 +50,8 @@ export default class TargetSelectUiHandler extends UiHandler {
       return false;
     }
 
+    this.enemyModifiers = this.scene.getModifierBar(true);
+
     this.setCursor(this.targets.includes(this.cursor) ? this.cursor : this.targets[0]);
 
     return true;
@@ -108,22 +112,26 @@ export default class TargetSelectUiHandler extends UiHandler {
       this.targetFlashTween.stop();
       for (const pokemon of multipleTargets) {
         pokemon.setAlpha(1);
+        this.highlightItems(pokemon.id, 1);
       }
     }
 
     this.targetFlashTween = this.scene.tweens.add({
       targets: this.targetsHighlighted,
-      alpha: 0,
+      key: { start: 0.55, to: 1 },
       loop: -1,
-      duration: Utils.fixedInt(250),
-      ease: "Sine.easeIn",
+      loopDelay: 150,
+      duration: Utils.fixedInt(450),
+      ease: "Sine.easeInOut",
       yoyo: true,
       onUpdate: t => {
         for (const target of this.targetsHighlighted) {
           target.setAlpha(t.getValue());
+          this.highlightItems(target.id, t.getValue());
         }
       }
     });
+
     if (this.targetBattleInfoMoveTween.length >= 1) {
       this.targetBattleInfoMoveTween.filter(t => t !== undefined).forEach(tween => tween.stop());
       for (const pokemon of multipleTargets) {
@@ -152,8 +160,10 @@ export default class TargetSelectUiHandler extends UiHandler {
       this.targetFlashTween.stop();
       this.targetFlashTween = null;
     }
+
     for (const pokemon of this.targetsHighlighted) {
       pokemon.setAlpha(1);
+      this.highlightItems(pokemon.id, 1);
     }
 
     if (this.targetBattleInfoMoveTween.length >= 1) {
@@ -165,6 +175,13 @@ export default class TargetSelectUiHandler extends UiHandler {
     }
   }
 
+  private highlightItems(targetId: number, val: number) : void {
+    const targetItems = this.enemyModifiers.getAll("name", targetId.toString());
+    for (const item of targetItems as Phaser.GameObjects.Container[]) {
+      item.setAlpha(val);
+    }
+  }
+
   clear() {
     super.clear();
     this.eraseCursor();