Fix ore dropping and implement subfields

src/main/java/emu/grasscutter/data/GameData.java

@@ -37,8 +37,11 @@ import emu.grasscutter.data.excels.world.WeatherData;
 import emu.grasscutter.data.excels.world.WorldAreaData;
 import emu.grasscutter.data.excels.world.WorldLevelData;
 import emu.grasscutter.data.server.ActivityCondGroup;
+import emu.grasscutter.data.server.DropSubfieldMapping;
+import emu.grasscutter.data.server.DropTableExcelConfigData;
 import emu.grasscutter.data.server.GadgetMapping;
 import emu.grasscutter.data.server.MonsterMapping;
+import emu.grasscutter.data.server.SubfieldMapping;
 import emu.grasscutter.game.dungeons.DungeonDropEntry;
 import emu.grasscutter.game.quest.QuestEncryptionKey;
 import emu.grasscutter.game.quest.RewindData;
@@ -451,6 +454,10 @@ public final class GameData {
     private static final Int2ObjectMap<GadgetMapping> gadgetMappingMap =
             new Int2ObjectOpenHashMap<>();
 
+    @Getter private static final Int2ObjectMap<SubfieldMapping> subfieldMappingMap = new Int2ObjectOpenHashMap<>();
+    @Getter private static final Int2ObjectMap<DropSubfieldMapping> dropSubfieldMappingMap = new Int2ObjectOpenHashMap<>();
+    @Getter private static final Int2ObjectMap<DropTableExcelConfigData> dropTableExcelConfigDataMap = new Int2ObjectOpenHashMap<>();
+
     @Getter
     private static final Int2ObjectMap<MonsterMapping> monsterMappingMap =
             new Int2ObjectOpenHashMap<>();

src/main/java/emu/grasscutter/data/ResourceLoader.java

@@ -116,6 +116,7 @@ public final class ResourceLoader {
         loadConfigLevelEntityData();
         loadQuestShareConfig();
         loadGadgetMappings();
+        loadSubfieldMappings();
         loadMonsterMappings();
         loadActivityCondGroups();
         loadGroupReplacements();
@@ -805,6 +806,38 @@ public final class ResourceLoader {
         }
     }
 
+    private static void loadSubfieldMappings() {
+        try {
+            val subfieldMap = GameData.getSubfieldMappingMap();
+            try {
+                JsonUtils.loadToList(getResourcePath("Server/SubfieldMapping.json"), SubfieldMapping.class).forEach(entry -> subfieldMap.put(entry.getEntityId(), entry));;
+            } catch (IOException | NullPointerException ignored) {}
+            Grasscutter.getLogger().debug("Loaded {} subfield mappings.", subfieldMap.size());
+        } catch (Exception e) {
+            Grasscutter.getLogger().error("Unable to load subfield mappings.", e);
+        }
+
+        try {
+            val dropSubfieldMap = GameData.getDropSubfieldMappingMap();
+            try {
+                JsonUtils.loadToList(getResourcePath("Server/DropSubfieldMapping.json"), DropSubfieldMapping.class).forEach(entry -> dropSubfieldMap.put(entry.getDropId(), entry));;
+            } catch (IOException | NullPointerException ignored) {}
+            Grasscutter.getLogger().debug("Loaded {} drop subfield mappings.", dropSubfieldMap.size());
+        } catch (Exception e) {
+            Grasscutter.getLogger().error("Unable to load drop subfield mappings.", e);
+        }
+
+        try {
+            val dropTableExcelConfigDataMap = GameData.getDropTableExcelConfigDataMap();
+            try {
+                JsonUtils.loadToList(getResourcePath("Server/DropTableExcelConfigData.json"), DropTableExcelConfigData.class).forEach(entry -> dropTableExcelConfigDataMap.put(entry.getId(), entry));;
+            } catch (IOException | NullPointerException ignored) {}
+            Grasscutter.getLogger().debug("Loaded {} drop table configs.", dropTableExcelConfigDataMap.size());
+        } catch (Exception e) {
+            Grasscutter.getLogger().error("Unable to load drop table config data.", e);
+        }
+    }
+
     private static void loadMonsterMappings() {
         try {
             var monsterMap = GameData.getMonsterMappingMap();

src/main/java/emu/grasscutter/data/server/DropSubfieldMapping.java

@@ -0,0 +1,10 @@
+package emu.grasscutter.data.server;
+
+import lombok.Data;
+
+@Data
+public class DropSubfieldMapping {
+    private int dropId;
+    private int levelLimit;
+    private int itemId;
+}

src/main/java/emu/grasscutter/data/server/DropTableExcelConfigData.java

@@ -0,0 +1,24 @@
+package emu.grasscutter.data.server;
+
+import lombok.Data;
+
+@Data
+public class DropTableExcelConfigData {
+    private int id;
+    private int randomType;
+    private int dropLevel;
+    private DropVectorEntry[] dropVec;
+    private int nodeType;
+    private boolean fallToGround;
+    private int sourceType;
+    private int everydayLimit;
+    private int historyLimit;
+    private int activityLimit;
+
+    @Data
+    public class DropVectorEntry {
+        private int itemId;
+        private String countRange;
+        private int weight;
+    }
+}

src/main/java/emu/grasscutter/data/server/SubfieldMapping.java

@@ -0,0 +1,15 @@
+package emu.grasscutter.data.server;
+
+import lombok.Data;
+
+@Data
+public class SubfieldMapping {
+    private int entityId;
+    private SubfieldMappingEntry[] subfields;
+
+    @Data
+    public class SubfieldMappingEntry {
+        private String subfieldName;
+        private int drop_id;
+    }
+}