De-hardcode ChestBatchUse

src/main/java/emu/grasscutter/game/shop/ShopChestBatchUseTable.java

-package emu.grasscutter.game.shop;
-
-import java.util.ArrayList;
-import java.util.List;
-
-public class ShopChestBatchUseTable {
-    private int itemId;
-    private List<Integer> optionItem = new ArrayList<>();
-
-    public int getItemId() {
-        return itemId;
-    }
-
-    public void setItemId(int itemId) {
-        this.itemId = itemId;
-    }
-
-    public List<Integer> getOptionItem() {
-        return optionItem;
-    }
-
-    public void setOptionItem(List<Integer> optionItem) {
-        this.optionItem = optionItem;
-    }
-}

src/main/java/emu/grasscutter/game/shop/ShopSystem.java

@@ -18,7 +18,6 @@ import java.util.List;
 public class ShopSystem extends BaseGameSystem {
     private final Int2ObjectMap<List<ShopInfo>> shopData;
     private final List<ShopChestTable> shopChestData;
-    private final List<ShopChestBatchUseTable> shopChestBatchUseData;
 
     private static final int REFRESH_HOUR = 4; // In GMT+8 server
     private static final String TIME_ZONE = "Asia/Shanghai"; // GMT+8 Timezone
@@ -27,7 +26,6 @@ public class ShopSystem extends BaseGameSystem {
         super(server);
         this.shopData = new Int2ObjectOpenHashMap<>();
         this.shopChestData = new ArrayList<>();
-        this.shopChestBatchUseData = new ArrayList<>();
         this.load();
     }
 
@@ -39,10 +37,6 @@ public class ShopSystem extends BaseGameSystem {
         return shopChestData;
     }
 
-    public List<ShopChestBatchUseTable> getShopChestBatchUseData() {
-        return shopChestBatchUseData;
-    }
-
     public static int getShopNextRefreshTime(ShopInfo shopInfo) {
         return switch (shopInfo.getShopRefreshType()) {
             case SHOP_REFRESH_DAILY -> Utils.getNextTimestampOfThisHour(REFRESH_HOUR, TIME_ZONE, shopInfo.getShopRefreshParam());
@@ -96,25 +90,9 @@ public class ShopSystem extends BaseGameSystem {
         }
     }
 
-    private void loadShopChestBatchUse() {
-        getShopChestBatchUseData().clear();
-        try {
-            List<ShopChestBatchUseTable> shopChestBatchUseTableList = DataLoader.loadList("ShopChestBatchUse.json", ShopChestBatchUseTable.class);
-            if (shopChestBatchUseTableList.size() > 0) {
-                getShopChestBatchUseData().addAll(shopChestBatchUseTableList);
-                Grasscutter.getLogger().debug("ShopChestBatchUse data successfully loaded.");
-            } else {
-                Grasscutter.getLogger().error("Unable to load ShopChestBatchUse data. ShopChestBatchUse data size is 0.");
-            }
-        } catch (Exception e) {
-            Grasscutter.getLogger().error("Unable to load ShopChestBatchUse data.", e);
-        }
-    }
-
     public synchronized void load() {
         loadShop();
         loadShopChest();
-        loadShopChestBatchUse();
     }
 
     public GameServer getServer() {

src/main/java/emu/grasscutter/game/systems/InventorySystem.java

@@ -10,10 +10,8 @@ import emu.grasscutter.data.GameData;
 import emu.grasscutter.data.common.ItemParamData;
 import emu.grasscutter.data.common.ItemUseData;
 import emu.grasscutter.data.excels.AvatarPromoteData;
-import emu.grasscutter.data.excels.AvatarSkillData;
 import emu.grasscutter.data.excels.AvatarSkillDepotData;
 import emu.grasscutter.data.excels.ItemData;
-import emu.grasscutter.data.excels.ProudSkillData;
 import emu.grasscutter.data.excels.WeaponPromoteData;
 import emu.grasscutter.data.excels.AvatarSkillDepotData.InherentProudSkillOpens;
 import emu.grasscutter.game.avatar.Avatar;
@@ -23,7 +21,6 @@ import emu.grasscutter.game.player.Player;
 import emu.grasscutter.game.props.ActionReason;
 import emu.grasscutter.game.props.ItemUseOp;
 import emu.grasscutter.game.props.ItemUseTarget;
-import emu.grasscutter.game.shop.ShopChestBatchUseTable;
 import emu.grasscutter.game.shop.ShopChestTable;
 import emu.grasscutter.net.proto.ItemParamOuterClass.ItemParam;
 import emu.grasscutter.net.proto.MaterialInfoOuterClass.MaterialInfo;
@@ -713,6 +710,7 @@ public class InventorySystem extends BaseGameSystem {
         int used = 0;
         boolean useSuccess = false;
         ItemData itemData = useItem.getItemData();
+        if (itemData == null) return null;
 
         // Use
         switch (itemData.getMaterialType()) {
@@ -816,26 +814,20 @@ public class InventorySystem extends BaseGameSystem {
                 }
                 break;
             case MATERIAL_CHEST_BATCH_USE:
-                if (optionId < 1) {
-                    break;
-                }
-                List<ShopChestBatchUseTable> shopChestBatchUseTableList = player.getServer().getShopSystem().getShopChestBatchUseData();
-                for (ShopChestBatchUseTable shopChestBatchUseTable : shopChestBatchUseTableList) {
-                    if (shopChestBatchUseTable.getItemId() != useItem.getItemId()) {
-                        continue;
-                    }
-
-                    if (shopChestBatchUseTable.getOptionItem() == null || optionId > shopChestBatchUseTable.getOptionItem().size()) {
-                        break;
-                    }
-
-                    int optionItemId = shopChestBatchUseTable.getOptionItem().get(optionId - 1);
+                if (optionId < 1) return null;  // 1-indexed selection
+                for (var use : itemData.getItemUse()) {
+                    if (use.getUseOp() != ItemUseOp.ITEM_USE_CHEST_SELECT_ITEM) continue;
+                    String[] choices = use.getUseParam()[0].split(",");
+                    if (optionId > choices.length) return null;
+                    String[] choiceParts = choices[optionId-1].split(":");
+                    int optionItemId = Integer.parseInt(choiceParts[0]);
+                    int optionItemCount = Integer.parseInt(choiceParts[1]);
                     ItemData optionItem = GameData.getItemDataMap().get(optionItemId);
                     if (optionItem == null) {
                         break;
                     }
 
-                    player.getInventory().addItem(new GameItem(optionItem, count), ActionReason.Shop);
+                    player.getInventory().addItem(new GameItem(optionItem, optionItemCount * count), ActionReason.Shop);
 
                     used = count;
                     break;

src/main/resources/defaults/data/ShopChestBatchUse.json

-[
-  {
-    "itemId": 115017,
-    "optionItem": [
-      104302,
-      104305,
-      104308,
-      104311,
-      104314,
-      104317,
-      104321,
-      104324,
-      104327
-    ]
-  },
-  {
-    "itemId": 115024,
-    "optionItem": [
-      114001,
-      114005,
-      114009,
-      114013,
-      114017,
-      114021,
-      114025,
-      114029,
-      114033
-    ]
-  },
-  {
-    "itemId": 115013,
-    "optionItem": [
-      104112,
-      104122,
-      104142,
-      104152,
-      104162,
-      104172
-    ]
-  },
-  {
-    "itemId": 115025,
-    "optionItem": [
-      114002,
-      114006,
-      114010,
-      114014,
-      114018,
-      114022,
-      114026,
-      114030,
-      114034
-    ]
-  }
-]