[BREAKING] Item Usage Overhaul

-De-hardcode elemental orb values
-De-hardcode exp items
-Change ShopChest format (temporary, drop system overhaul will replace it entirely)
-Food healing actually uses Ability data for real HP amounts

src/main/java/emu/grasscutter/data/excels/ItemData.java

@@ -9,7 +9,9 @@ import emu.grasscutter.data.ResourceType;
 import emu.grasscutter.data.common.ItemUseData;
 import emu.grasscutter.game.inventory.*;
 import emu.grasscutter.game.props.FightProperty;
+import emu.grasscutter.game.props.ItemUseOp;
 import emu.grasscutter.game.props.ItemUseTarget;
+import emu.grasscutter.game.props.ItemUseAction.ItemUseAction;
 import it.unimi.dsi.fastutil.ints.IntOpenHashSet;
 import it.unimi.dsi.fastutil.ints.IntSet;
 import lombok.Getter;
@@ -46,8 +48,10 @@ public class ItemData extends GameResource {
     private int[] satiationParams;
 
     // Usable item
-    private ItemUseTarget useTarget;
+    private ItemUseTarget useTarget = ItemUseTarget.ITEM_USE_TARGET_NONE;
     private List<ItemUseData> itemUse;
+    private List<ItemUseAction> itemUseActions;
+    private boolean useOnGain = false;
 
     // Relic
     private int mainPropDepotId;
@@ -124,8 +128,16 @@ public class ItemData extends GameResource {
 
         // Prevent material type from being null
         this.materialType = this.materialType == null ? MaterialType.MATERIAL_NONE : this.materialType;
+
+        if (this.itemUse != null && !this.itemUse.isEmpty()) {
+            this.itemUseActions = this.itemUse.stream()
+                                    .filter(x -> x.getUseOp() != ItemUseOp.ITEM_USE_NONE)
+                                    .map(ItemUseAction::fromItemUseData)
+                                    .toList();
+        }
     }
 
+    
     @Getter
     public static class WeaponProperty {
         private FightProperty propType;