Select modifier phase tentatively working with new held items

src/phases/select-modifier-phase.ts

@@ -13,6 +13,7 @@ import {
   PokemonPpUpModifierType,
   ModifierPoolType,
   getPlayerModifierTypeOptions,
+  PokemonHeldItemReward,
 } from "#app/modifier/modifier-type";
 import type { Modifier } from "#app/modifier/modifier";
 import {
@@ -158,6 +159,9 @@ export class SelectModifierPhase extends BattlePhase {
   private applyChosenModifier(modifierType: ModifierType, cost: number, modifierSelectCallback): boolean {
     if (modifierType! instanceof PokemonModifierType) {
       //TODO: is the bang correct?
+      if (modifierType instanceof PokemonHeldItemReward) {
+        this.openGiveHeldItemMenu(modifierType, modifierSelectCallback);
+      }
       if (modifierType instanceof FusePokemonModifierType) {
         this.openFusionMenu(modifierType, cost, modifierSelectCallback);
       } else {
@@ -231,6 +235,26 @@ export class SelectModifierPhase extends BattlePhase {
     return true;
   }
 
+  private openGiveHeldItemMenu(reward, modifierSelectCallback) {
+    const party = globalScene.getPlayerParty();
+    const partyUiMode = PartyUiMode.MODIFIER;
+    globalScene.ui.setModeWithoutClear(
+      UiMode.PARTY,
+      partyUiMode,
+      -1,
+      (slotIndex: number, _option: PartyOption) => {
+        if (slotIndex < 6) {
+          globalScene.ui.setMode(UiMode.MODIFIER_SELECT, this.isPlayer()).then(() => {
+            party[slotIndex].heldItemManager.addHeldItem(reward.itemId);
+          });
+        } else {
+          this.resetModifierSelect(modifierSelectCallback);
+        }
+      },
+      reward.selectFilter,
+    );
+  }
+
   // Toggle reroll lock
   private toggleRerollLock() {
     const rerollCost = this.getRerollCost(globalScene.lockModifierTiers);