Attempt to implement item giving to NPCs (untested)

src/main/java/emu/grasscutter/game/inventory/BagTab.java

@@ -0,0 +1,55 @@
+package emu.grasscutter.game.inventory;
+
+import it.unimi.dsi.fastutil.ints.*;
+import lombok.*;
+
+import java.util.*;
+import java.util.stream.Stream;
+
+@RequiredArgsConstructor
+public enum BagTab {
+    TAB_NONE(0),
+    TAB_WEAPON(1),
+    TAB_EQUIP(2),
+    TAB_AVATAR(3),
+    TAB_FOOD(4),
+    TAB_MATERIAL(5),
+    TAB_QUEST(6),
+    TAB_CONSUME(7),
+    TAB_WIDGET(8),
+    TAB_HOMEWORLD(9);
+
+    private static final Int2ObjectMap<BagTab> map = new Int2ObjectOpenHashMap<>();
+    private static final Map<String, BagTab> stringMap = new HashMap<>();
+
+    static {
+        Stream.of(BagTab.values())
+            .forEach(
+                entry -> {
+                    map.put(entry.getValue(), entry);
+                    stringMap.put(entry.name(), entry);
+                });
+    }
+
+    @Getter private final int value;
+
+    /**
+     * Fetches the bag tab by its value.
+     *
+     * @param value The name of the bag tab.
+     * @return The bag tab.
+     */
+    public static BagTab getTypeByValue(int value) {
+        return map.getOrDefault(value, TAB_NONE);
+    }
+
+    /**
+     * Fetches the bag tab by its name.
+     *
+     * @param name The name of the bag tab.
+     * @return The bag tab.
+     */
+    public static BagTab getTypeByName(String name) {
+        return stringMap.getOrDefault(name, TAB_NONE);
+    }
+}

src/main/java/emu/grasscutter/game/inventory/Inventory.java

@@ -1,7 +1,5 @@
 package emu.grasscutter.game.inventory;
 
-import static emu.grasscutter.config.Configuration.INVENTORY_LIMITS;
-
 import emu.grasscutter.Grasscutter;
 import emu.grasscutter.data.GameData;
 import emu.grasscutter.data.common.ItemParamData;
@@ -17,8 +15,11 @@ import emu.grasscutter.server.packet.send.*;
 import emu.grasscutter.utils.Utils;
 import it.unimi.dsi.fastutil.ints.*;
 import it.unimi.dsi.fastutil.longs.*;
+
 import java.util.*;
 
+import static emu.grasscutter.config.Configuration.INVENTORY_LIMITS;
+
 public class Inventory extends BasePlayerManager implements Iterable<GameItem> {
     private final Long2ObjectMap<GameItem> store;
     private final Int2ObjectMap<InventoryTab> inventoryTypes;
@@ -150,6 +151,52 @@ public class Inventory extends BasePlayerManager implements Iterable<GameItem> {
         getPlayer().sendPacket(new PacketStoreItemChangeNotify(changedItems));
     }
 
+    /**
+     * Checks to see if the player has the item in their inventory.
+     * This will succeed if the player has at least the minimum count of the item.
+     *
+     * @param itemGuid The item id to check for.
+     * @param minCount The minimum count of the item to check for.
+     * @return True if the player has the item, false otherwise.
+     */
+    public boolean hasItem(long itemGuid, int minCount) {
+        return hasItem(itemGuid, minCount, false);
+    }
+
+    /**
+     * Checks to see if the player has the item in their inventory.
+     *
+     * @param itemGuid The item id to check for.
+     * @param count The count of the item to check for.
+     * @param enforce If true, the player must have the exact amount.
+     *                If false, the player must have at least the amount.
+     * @return True if the player has the item, false otherwise.
+     */
+    public boolean hasItem(long itemGuid, int count, boolean enforce) {
+        var item = this.getItemByGuid(itemGuid);
+        if (item == null) return false;
+
+        return enforce ?
+            item.getCount() == count :
+            item.getCount() >= count;
+    }
+
+    /**
+     * Checks to see if the player has the item in their inventory.
+     * This is exact.
+     *
+     * @param items A map of item game IDs to their count.
+     * @return True if the player has the items, false otherwise.
+     */
+    public boolean hasAllItems(Map<Long, Integer> items) {
+        for (var item : items.entrySet()) {
+            if (!this.hasItem(item.getKey(), item.getValue(), true))
+                return false;
+        }
+
+        return true;
+    }
+
     private void triggerAddItemEvents(GameItem result) {
         try {
             getPlayer()
@@ -434,6 +481,17 @@ public class Inventory extends BasePlayerManager implements Iterable<GameItem> {
         }
     }
 
+    /**
+     * Performs a bulk delete of items.
+     *
+     * @param items A map of item game IDs to the amount of items to remove.
+     */
+    public void removeItems(Map<Long, Integer> items) {
+        for (var entry : items.entrySet()) {
+            this.removeItem(entry.getKey(), entry.getValue());
+        }
+    }
+
     public boolean removeItem(long guid) {
         return removeItem(guid, 1);
     }

src/main/java/emu/grasscutter/game/player/Player.java

@@ -159,7 +159,7 @@ public class Player implements PlayerHook, FieldFetch {
     @Getter private transient FriendsList friendsList;
     @Getter private transient MailHandler mailHandler;
     @Getter private transient AbilityManager abilityManager;
-    @Getter @Setter private transient QuestManager questManager;
+    @Getter private transient QuestManager questManager;
     @Getter private transient TowerManager towerManager;
     @Getter private transient SotSManager sotsManager;
     @Getter private transient MapMarksManager mapMarksManager;

src/main/java/emu/grasscutter/game/quest/QuestManager.java

@@ -1,6 +1,5 @@
 package emu.grasscutter.game.quest;
 
-import dev.morphia.annotations.Transient;
 import emu.grasscutter.Grasscutter;
 import emu.grasscutter.data.GameData;
 import emu.grasscutter.data.binout.MainQuestData;
@@ -31,10 +30,13 @@ import static emu.grasscutter.GameConstants.DEBUG;
 import static emu.grasscutter.config.Configuration.GAME_OPTIONS;
 import static emu.grasscutter.config.Configuration.SERVER;
 
-public class QuestManager extends BasePlayerManager {
+public final class QuestManager extends BasePlayerManager {
     @Getter private final Player player;
+
     @Getter private final Int2ObjectMap<GameMainQuest> mainQuests;
-    @Transient @Getter private final List<Integer> loggedQuests;
+    @Getter private final List<Integer> loggedQuests;
+
+    @Getter private final List<Integer> activeGivings = new ArrayList<>();
 
     private long lastHourCheck = 0;
     private long lastDayCheck = 0;
@@ -45,6 +47,7 @@ public class QuestManager extends BasePlayerManager {
             60, TimeUnit.SECONDS, new LinkedBlockingDeque<>(1000),
             FastThreadLocalThread::new, new ThreadPoolExecutor.AbortPolicy());
     }
+
     /*
         On SetPlayerBornDataReq, the server sends FinishedParentQuestNotify, with this exact
         parentQuestList. Captured on Game version 2.7

src/main/java/emu/grasscutter/game/quest/enums/QuestContent.java

@@ -34,7 +34,7 @@ public enum QuestContent implements QuestTrigger {
     QUEST_CONTENT_ADD_QUEST_PROGRESS(24),
     QUEST_CONTENT_INTERACT_GADGET(25),
     QUEST_CONTENT_DAILY_TASK_COMP_FINISH(26), // missing, currently unused
-    QUEST_CONTENT_FINISH_ITEM_GIVING(27), // missing, finish
+    QUEST_CONTENT_FINISH_ITEM_GIVING(27),
     QUEST_CONTENT_SKILL(107),
     QUEST_CONTENT_CITY_LEVEL_UP(109), // missing, finish
     QUEST_CONTENT_PATTERN_GROUP_CLEAR_MONSTER(110), // missing, finish, for random quests

src/main/java/emu/grasscutter/game/quest/enums/QuestExec.java

@@ -35,7 +35,7 @@ public enum QuestExec implements QuestTrigger {
     QUEST_EXEC_CREATE_PATTERN_GROUP(25), // missing, used for random quests
     QUEST_EXEC_REMOVE_PATTERN_GROUP(26), // missing, used for random quests
     QUEST_EXEC_REFRESH_GROUP_SUITE_RANDOM(27), // missing
-    QUEST_EXEC_ACTIVE_ITEM_GIVING(28), // missing
+    QUEST_EXEC_ACTIVE_ITEM_GIVING(28),
     QUEST_EXEC_DEL_ALL_SPECIFIC_PACK_ITEM(29), // missing
     QUEST_EXEC_ROLLBACK_PARENT_QUEST(30),
     QUEST_EXEC_LOCK_AVATAR_TEAM(31), // missing
@@ -71,7 +71,7 @@ public enum QuestExec implements QuestTrigger {
     QUEST_EXEC_MODIFY_CLIMATE_AREA(60), // missing
     QUEST_EXEC_GRANT_TRIAL_AVATAR_AND_LOCK_TEAM(61), // missing
     QUEST_EXEC_CHANGE_MAP_AREA_STATE(62), // missing
-    QUEST_EXEC_DEACTIVE_ITEM_GIVING(63), // missing
+    QUEST_EXEC_DEACTIVE_ITEM_GIVING(63),
     QUEST_EXEC_CHANGE_SCENE_LEVEL_TAG(64), // missing
     QUEST_EXEC_UNLOCK_PLAYER_WORLD_SCENE(65), // missing
     QUEST_EXEC_LOCK_PLAYER_WORLD_SCENE(66), // missing

src/main/java/emu/grasscutter/game/quest/exec/ExecActiveItemGiving.java

@@ -0,0 +1,26 @@
+package emu.grasscutter.game.quest.exec;
+
+import emu.grasscutter.Grasscutter;
+import emu.grasscutter.data.excels.quest.QuestData.QuestExecParam;
+import emu.grasscutter.game.quest.*;
+import emu.grasscutter.game.quest.enums.QuestExec;
+import emu.grasscutter.game.quest.handlers.QuestExecHandler;
+
+@QuestValueExec(QuestExec.QUEST_EXEC_ACTIVE_ITEM_GIVING)
+public final class ExecActiveItemGiving extends QuestExecHandler {
+    @Override
+    public boolean execute(GameQuest quest, QuestExecParam condition, String... paramStr) {
+        var questManager = quest.getOwner().getQuestManager();
+        var activeGivings = questManager.getActiveGivings();
+
+        var givingId = Integer.parseInt(condition.getParam()[0]);
+        if (activeGivings.contains(givingId)) {
+            Grasscutter.getLogger().debug("Quest {} attempted to add give action {} twice.",
+                quest.getSubQuestId(), givingId);
+            return false;
+        } else {
+            activeGivings.add(givingId);
+            return true;
+        }
+    }
+}

src/main/java/emu/grasscutter/game/quest/exec/ExecDeactivateItemGiving.java

@@ -0,0 +1,26 @@
+package emu.grasscutter.game.quest.exec;
+
+import emu.grasscutter.Grasscutter;
+import emu.grasscutter.data.excels.quest.QuestData;
+import emu.grasscutter.game.quest.*;
+import emu.grasscutter.game.quest.enums.QuestExec;
+import emu.grasscutter.game.quest.handlers.QuestExecHandler;
+
+@QuestValueExec(QuestExec.QUEST_EXEC_DEACTIVE_ITEM_GIVING)
+public final class ExecDeactivateItemGiving extends QuestExecHandler {
+    @Override
+    public boolean execute(GameQuest quest, QuestData.QuestExecParam condition, String... paramStr) {
+        var questManager = quest.getOwner().getQuestManager();
+        var activeGivings = questManager.getActiveGivings();
+
+        var givingId = Integer.parseInt(condition.getParam()[0]);
+        if (!activeGivings.contains(givingId)) {
+            Grasscutter.getLogger().debug("Quest {} attempted to remove give action {} when it isn't active.",
+                quest.getSubQuestId(), givingId);
+            return false;
+        } else {
+            activeGivings.remove(givingId);
+            return true;
+        }
+    }
+}