Merge branch 'Grasscutters:development' into development

.github/ISSUE_TEMPLATE/a_issue_report.md

@@ -0,0 +1,23 @@
+---
+name: Issues
+about: Create an issue if you need any help
+title: '[Issue] '
+labels: 'help wanted, question'
+assignees: ''
+
+---
+**Did you look for other closed issues that have the same problem?**
+<!--- It will be easier for us to solve your problem if there is less duplication of problems -->
+
+**Describe the issue**
+<!--- A clear and concise description of what the issue is. -->
+
+**Which branch did you use?**
+<!--- Stable branch / Development branch -->
+
+**Screenshots**
+<!--- If applicable, add screenshots to help explain your problem. -->
+
+**Additional context**
+<!--- Add any other context about the problem here. -->
+

.github/ISSUE_TEMPLATE/b_bug_report.md

@@ -0,0 +1,21 @@
+---
+name: Bug report
+about: Create a bug report to help us improve Grasscutter
+title: '[Bug] '
+labels: 'bug'
+assignees: ''
+
+---
+<!--- ONLY USE this form for bug reporting. If you need help or support, please USE issue report form instead. -->
+
+**Describe the bug**
+<!--- A clear and concise description of what the bug is. -->
+
+**Which branch did you use?**
+<!--- Stable branch / Development branch -->
+
+**Screenshots**
+<!--- If applicable, add screenshots to help explain your problem. -->
+
+**Additional context**
+<!--- Add any other context about the problem here. -->

.github/ISSUE_TEMPLATE/c_feature_request.md

@@ -0,0 +1,20 @@
+---
+name: Feature request
+about: Suggest an idea for Grasscutter
+title: '[Feature Request] '
+labels: 'enhancement, suggestion'
+assignees: ''
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+<!--- A clear and concise description of what the problem is. Ex. I'm always frustrated when [...] -->
+
+**Describe the solution you'd like**
+<!--- A clear and concise description of what you want to happen. -->
+
+**Describe alternatives you've considered**
+<!--- A clear and concise description of any alternative solutions or features you've considered. -->
+
+**Additional context**
+<!--- Add any other context or screenshots about the feature request here. -->

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,6 @@
+blank_issues_enabled: false
+contact_links:
+  - name: Grasscutter Discord
+    url: https://discord.gg/T5vZU6UyeG
+    about: For support, discuss and and other things with Grasscutter.
+ 

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,22 @@
+## Description
+
+Please carefully read the [Contributing note](https://github.com/Grasscutters/Grasscutter/blob/stable/CONTRIBUTING.md) and [Code of conduct](https://github.com/Grasscutters/Grasscutter/blob/development/CODE_OF_CONDUCT.md) before making any pull requests.
+And, **Do not make a pull request to merge into stable unless it is a hotfix. Use the development branch instead.**
+## Issues fixed by this PR
+
+<!--- Put the links of issues that may be fixed by this PR here (if any). -->
+## Type of changes
+
+<!--- Put an `x` in all the boxes that apply your changes. -->
+
+- [ ] Bug fix
+- [ ] New feature 
+- [ ] Enhancement
+- [ ] Documentation
+
+## Checklist:
+
+- [ ] My code follows the style guidelines of this project
+- [ ] My pull request is unique and no other pull requests have been opened for these changes
+- [ ] I have read the [Contributing note](https://github.com/Grasscutters/Grasscutter/blob/stable/CONTRIBUTING.md) and [Code of conduct](https://github.com/Grasscutters/Grasscutter/blob/development/CODE_OF_CONDUCT.md)
+- [ ] I am responsible for any copyright issues with my code if it occurs in the future.

README.md

@@ -108,6 +108,7 @@ There is a dummy user named "Server" in every player's friends list that you can
 | -------------- | ------------------------------------------------- | ------------------------- | ------------ | ------------------------------------------------------------ | ----------------------------------------------- |
 | account        | account <create\|delete> <username> [UID]         |                           | Server only  | Creates an account with the specified username and the in-game UID for that account. The UID will be auto generated if not set. |                                                 |
 | broadcast      | broadcast <message>                               | server.broadcast          | Both side    | Sends a message to all the players.                          | b                                               |
+| coop           | coop <playerId> <target playerId>                 | server.coop               | Both side    | Forces someone to join the world of others.                  |                                                 |                                           
 | changescene    | changescene <scene id>                            | player.changescene        | Client only  | Switch scenes by scene ID.                                   | scene                                           |
 | clearartifacts | clearartifacts                                    | player.clearartifacts     | Client only  | Deletes all unequipped and unlocked level 0 artifacts, including 5-star rarity ones from your inventory. | clearart                                        |
 | clearweapons   | clearweapons                                      | player.clearweapons       | Client only  | Deletes all unequipped and unlocked weapons, including 5-star rarity ones from your inventory. | clearwpns                                       |
@@ -134,6 +135,7 @@ There is a dummy user named "Server" in every player's friends list that you can
 | stop           | stop                                              | server.stop               | Both side    | Stops the server                                             |                                                 |
 | talent         | talent <talentID> <value>                         | player.settalent          | Client only  | Sets talent level for your currently selected character           |                                                 |
 | teleport       | teleport <x> <y> <z>                              | player.teleport           | Client only  | Change the player's position.                                | tp                                              |
+| tpall          |                                                   | player.tpall              | Client only  | Teleports all players in your world to your position         |                                                 |
 | weather        | weather <weatherID> <climateID>                   | player.weather            | Client only  | Changes the weather                                          | w                                               |
 
 ### Bonus

README_zh-CN.md

@@ -109,6 +109,7 @@ chmod +x gradlew
 | -------------- | -------------------------------------------- | ------------------------- | -------- | ------------------------------------------ | ----------------------------------------------- |
 | account        | account <create\|delete> <用户名> [uid]      |                           | 仅服务端 | 通过指定用户名和uid增删账户                |                                                 |
 | broadcast      | broadcast <消息内容>                         | server.broadcast          | 均可使用 | 给所有玩家发送公告                         | b                                               |
+| coop           | coop <uid> <目标uid>                 | server.coop               | 均可使用    | 强制某位玩家进入指定玩家的多人世界                  |                                                 |
 | changescene    | changescene <场景ID>                         | player.changescene        | 仅客户端 | 切换到指定场景                             | scene                                           |
 | clearartifacts | clearartifacts                               | player.clearartifacts     | 仅客户端 | 删除所有未装备及未解锁的圣遗物,包括五星    | clearart                                        |
 | clearweapons   | clearweapons                                 | player.clearweapons       | 仅客户端 | 删除所有未装备及未解锁的武器,包括五星      | clearwp                                         |
@@ -135,6 +136,7 @@ chmod +x gradlew
 | stop           | stop                                         | server.stop               | 均可使用 | 停止服务器                                 |                                                 |
 | talent         | talent <天赋ID> <等级>                       | player.settalent          | 仅客户端 | 设置当前角色的天赋等级                     |                                                 |
 | teleport       | teleport <x> <y> <z>                         | player.teleport           | 仅客户端 | 传送玩家到指定坐标                         | tp                                              |
+| tpall          |                                                   | player.tpall              | 仅客户端  | 传送多人世界中所有的玩家到自身地点         |                                                 |
 | weather        | weather <天气ID> <气候ID>                    | player.weather            | 仅客户端 | 改变天气                                   | w                                               |
 
 ### 额外功能

src/main/java/emu/grasscutter/Config.java

@@ -72,6 +72,10 @@ public final class Config {
 		public boolean WatchGacha = false;
 		public int[] WelcomeEmotes = {2007, 1002, 4010};
 		public String WelcomeMotd = "Welcome to Grasscutter emu";
+		public String WelcomeMailContent = "Hi there!\r\nFirst of all, welcome to Grasscutter. If you have any issues, please let us know so that Lawnmower can help you! \r\n\r\nCheck out our:\r\n<type=\"browser\" text=\"Discord\" href=\"https://discord.gg/T5vZU6UyeG\"/> <type=\"browser\" text=\"GitHub\" href=\"https://github.com/Melledy/Grasscutter\"/>";
+		public int[] WelcomeMailItems = {13509};
+
+		public boolean EnableOfficialShop = true;
 
 		public GameRates Game = new GameRates();
 

src/main/java/emu/grasscutter/command/commands/CoopCommand.java

@@ -0,0 +1,36 @@
+package emu.grasscutter.command.commands;
+
+import emu.grasscutter.command.Command;
+import emu.grasscutter.command.CommandHandler;
+import emu.grasscutter.game.player.Player;
+
+import java.util.List;
+
+@Command(label = "coop", usage = "coop",
+        description = "Forces someone to join the world of others", permission = "server.coop")
+public class CoopCommand implements CommandHandler {
+    @Override
+    public void execute(Player sender, List<String> args) {
+        if (args.size() < 2) {
+            CommandHandler.sendMessage(sender, "Usage: coop <playerId> <target playerId>");
+            return;
+        }
+        try {
+            int tid = Integer.parseInt(args.get(0));
+            int hostId = Integer.parseInt(args.get(1));
+            Player host = sender.getServer().getPlayerByUid(hostId);
+            Player want = sender.getServer().getPlayerByUid(tid);
+            if (host == null || want == null) {
+                CommandHandler.sendMessage(sender, "Player is offline.");
+                return;
+            }
+            if (want.isInMultiplayer()) {
+                sender.getServer().getMultiplayerManager().leaveCoop(want);
+            }
+            sender.getServer().getMultiplayerManager().applyEnterMp(want, hostId);
+            sender.getServer().getMultiplayerManager().applyEnterMpReply(host, tid, true);
+        } catch (Exception e) {
+            CommandHandler.sendMessage(sender, "Player id is not valid.");
+        }
+    }
+}

src/main/java/emu/grasscutter/command/commands/ResetShopLimitCommand.java

@@ -0,0 +1,31 @@
+package emu.grasscutter.command.commands;
+
+import emu.grasscutter.Grasscutter;
+import emu.grasscutter.command.Command;
+import emu.grasscutter.command.CommandHandler;
+import emu.grasscutter.game.player.Player;
+
+import java.util.List;
+
+@Command(label = "resetshop", usage = "resetshop",
+        description = "Reset target player's shop refresh time.", permission = "server.resetshop")
+public final class ResetShopLimitCommand implements CommandHandler {
+    @Override
+    public void execute(Player sender, List<String> args) {
+        if (args.size() < 1) {
+            CommandHandler.sendMessage(sender,"Usage: /resetshop <player id>");
+            return;
+        }
+
+        int target = Integer.parseInt(args.get(0));
+        Player targetPlayer = Grasscutter.getGameServer().getPlayerByUid(target);
+        if (targetPlayer == null) {
+            CommandHandler.sendMessage(sender, "Player not found.");
+            return;
+        }
+
+        targetPlayer.getShopLimit().forEach(x -> x.setNextRefreshTime(0));
+        targetPlayer.save();
+        CommandHandler.sendMessage(sender, "Success");
+    }
+}

src/main/java/emu/grasscutter/command/commands/TpallCommand.java

@@ -0,0 +1,31 @@
+package emu.grasscutter.command.commands;
+
+import emu.grasscutter.command.Command;
+import emu.grasscutter.command.CommandHandler;
+import emu.grasscutter.game.player.Player;
+import emu.grasscutter.utils.Position;
+
+import java.util.List;
+
+@Command(label = "tpall", usage = "tpall",
+        description = "Teleports all players in your world to your position", permission = "player.tpall")
+public class TpallCommand implements CommandHandler {
+    @Override
+    public void execute(Player sender, List<String> args) {
+        if (sender == null) {
+            CommandHandler.sendMessage(null, "Run this command in-game.");
+            return;
+        }
+        if (!sender.getWorld().isMultiplayer()) {
+            CommandHandler.sendMessage(sender, "You only can use this command in MP mode.");
+            return;
+        }
+        for (Player gp : sender.getWorld().getPlayers()) {
+            if (gp.equals(sender))
+                continue;
+            Position pos = sender.getPos();
+
+            gp.getWorld().transferPlayerToScene(gp, sender.getSceneId(), pos);
+        }
+    }
+}

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

@@ -62,8 +62,11 @@ public class GameData {
 	private static final Int2ObjectMap<RewardData> rewardDataMap = new Int2ObjectOpenHashMap<>();
 	private static final Int2ObjectMap<WorldLevelData> worldLevelDataMap = new Int2ObjectOpenHashMap<>();
 
+	private static final Int2ObjectMap<ShopGoodsData> shopGoodsDataMap = new Int2ObjectOpenHashMap<>();
+	
 	// Cache
 	private static Map<Integer, List<Integer>> fetters = new HashMap<>();
+	private static Map<Integer, List<ShopGoodsData>> shopGoods = new HashMap<>();
 	
 	public static Int2ObjectMap<?> getMapByResourceDef(Class<?> resourceDefinition) {
 		Int2ObjectMap<?> map = null;
@@ -265,4 +268,18 @@ public class GameData {
 	public static Int2ObjectMap<WorldLevelData> getWorldLevelDataMap() {
 		return worldLevelDataMap;
 	}
+
+  public static char EJWOA = 's';
+  
+	public static Map<Integer, List<ShopGoodsData>> getShopGoodsDataEntries() {
+		if (shopGoods.isEmpty()) {
+			shopGoodsDataMap.forEach((k, v) -> {
+				if (!shopGoods.containsKey(v.getShopType()))
+					shopGoods.put(v.getShopType(), new ArrayList<>());
+				shopGoods.get(v.getShopType()).add(v);
+			});
+		}
+
+		return shopGoods;
+	}
 }

src/main/java/emu/grasscutter/data/common/ItemParamData.java

@@ -4,6 +4,12 @@ public class ItemParamData {
 	private int Id;
     private int Count;
 
+    public ItemParamData() {}
+	public ItemParamData(int id, int count) {
+    	this.Id = id;
+    	this.Count = count;
+	}
+    
 	public int getId() {
 		return Id;
 	}

src/main/java/emu/grasscutter/data/def/GadgetData.java

@@ -15,6 +15,7 @@ public class GadgetData extends GameResource {
 	private String InteeIconName;
 	private long NameTextMapHash;
 	private int CampID;
+	private String LODPatternName;
 
 	@Override
 	public int getId() {
@@ -53,6 +54,8 @@ public class GadgetData extends GameResource {
 		return CampID;
 	}
 
+	public String getLODPatternName() { return LODPatternName; }
+
 	@Override
 	public void onLoad() {
 

src/main/java/emu/grasscutter/data/def/ShopGoodsData.java

@@ -0,0 +1,108 @@
+package emu.grasscutter.data.def;
+
+import emu.grasscutter.data.GameResource;
+import emu.grasscutter.data.ResourceType;
+import emu.grasscutter.data.common.ItemParamData;
+import emu.grasscutter.game.shop.ShopInfo;
+
+import java.util.List;
+
+@ResourceType(name = "ShopGoodsExcelConfigData.json")
+public class ShopGoodsData extends GameResource {
+    private int GoodsId;
+    private int ShopType;
+    private int ItemId;
+
+    private int ItemCount;
+
+    private int CostScoin;
+    private int CostHcoin;
+    private int CostMcoin;
+
+    private List<ItemParamData> CostItems;
+    private int MinPlayerLevel;
+    private int MaxPlayerLevel;
+
+    private int BuyLimit;
+    private int SubTabId;
+
+    private String RefreshType;
+    private transient ShopInfo.ShopRefreshType RefreshTypeEnum;
+    
+    private int RefreshParam;
+
+    @Override
+    public void onLoad() {
+       if (this.RefreshType == null)
+           this.RefreshTypeEnum = ShopInfo.ShopRefreshType.NONE;
+       else {
+           this.RefreshTypeEnum = switch (this.RefreshType) {
+               case "SHOP_REFRESH_DAILY" -> ShopInfo.ShopRefreshType.SHOP_REFRESH_DAILY;
+               case "SHOP_REFRESH_WEEKLY" -> ShopInfo.ShopRefreshType.SHOP_REFRESH_WEEKLY;
+               case "SHOP_REFRESH_MONTHLY" -> ShopInfo.ShopRefreshType.SHOP_REFRESH_MONTHLY;
+               default -> ShopInfo.ShopRefreshType.NONE;
+           };
+       }
+    }
+
+    @Override
+    public int getId() {
+        return getGoodsId();
+    }
+
+    public int getGoodsId() {
+        return GoodsId;
+    }
+
+    public int getShopType() {
+        return ShopType;
+    }
+
+    public int getItemId() {
+        return ItemId;
+    }
+
+    public int getItemCount() {
+        return ItemCount;
+    }
+
+    public int getCostScoin() {
+        return CostScoin;
+    }
+
+    public int getCostHcoin() {
+        return CostHcoin;
+    }
+
+    public int getCostMcoin() {
+        return CostMcoin;
+    }
+
+    public List<ItemParamData> getCostItems() {
+        return CostItems;
+    }
+
+    public int getMinPlayerLevel() {
+        return MinPlayerLevel;
+    }
+
+    public int getMaxPlayerLevel() {
+        return MaxPlayerLevel;
+    }
+
+    public int getBuyLimit() {
+        return BuyLimit;
+    }
+
+    public int getSubTabId() {
+        return SubTabId;
+    }
+
+    public ShopInfo.ShopRefreshType getRefreshType() {
+        return RefreshTypeEnum;
+    }
+
+    public int getRefreshParam() {
+        return RefreshParam;
+    }
+}

src/main/java/emu/grasscutter/database/DatabaseHelper.java

@@ -180,4 +180,6 @@ public final class DatabaseHelper {
 				Filters.eq("friendId", friendship.getOwnerId())
 		)).first();
 	}
+
+	public static char AWJVN = 'e';
 }

src/main/java/emu/grasscutter/game/drop/DropData.java

@@ -7,6 +7,15 @@ public class DropData {
     private int minCount;
     private int maxCount;
     private boolean share = false;
+    private boolean give = false;
+
+    public boolean isGive() {
+        return give;
+    }
+
+    public void setGive(boolean give) {
+        this.give = give;
+    }
 
     public int getItemId() {
         return itemId;
@@ -43,15 +52,4 @@ public class DropData {
         this.share = share;
     }
 
-    public boolean isGive() {
-        return give;
-    }
-
-    private boolean give = false;
-
-    public boolean isExp() {
-        return exp;
-    }
-
-    private boolean exp = false;
 }

src/main/java/emu/grasscutter/game/drop/DropManager.java

@@ -6,7 +6,11 @@ import emu.grasscutter.data.GameData;
 import emu.grasscutter.data.def.ItemData;
 import emu.grasscutter.game.entity.EntityItem;
 import emu.grasscutter.game.entity.EntityMonster;
+import emu.grasscutter.game.inventory.GameItem;
+import emu.grasscutter.game.inventory.ItemType;
 import emu.grasscutter.game.player.Player;
+import emu.grasscutter.game.props.ActionReason;
+import emu.grasscutter.game.world.Scene;
 import emu.grasscutter.server.game.GameServer;
 import emu.grasscutter.utils.Position;
 import emu.grasscutter.utils.Utils;
@@ -53,31 +57,44 @@ public class DropManager {
             e.printStackTrace();
         }
     }
+    private void addDropEntity(DropData dd, Scene dropScene, ItemData itemData, Position pos, int num, Player target) {
+        if (!dd.isGive() && (itemData.getItemType() != ItemType.ITEM_VIRTUAL || itemData.getGadgetId() != 0)) {
+            EntityItem entity = new EntityItem(dropScene, target, itemData, pos, num, dd.isShare());
+            if (!dd.isShare())
+                dropScene.addEntityToSingleClient(target, entity);
+            else
+                dropScene.addEntity(entity);
+        } else {
+            if (target != null) {
+                target.getInventory().addItem(new GameItem(itemData, num), ActionReason.SubfieldDrop, true);
+            } else {
+                // target is null if items will be added are shared. no one could pick it up because of the combination(give + shared)
+                // so it will be sent to all players' inventories directly.
+                dropScene.getPlayers().forEach(x -> {
+                    x.getInventory().addItem(new GameItem(itemData, num), ActionReason.SubfieldDrop, true);
+                });
+            }
+        }
+    }
 
     private void processDrop(DropData dd, EntityMonster em, Player gp) {
         int target = Utils.randomRange(1, 10000);
         if (target >= dd.getMinWeight() && target < dd.getMaxWeight()) {
             ItemData itemData = GameData.getItemDataMap().get(dd.getItemId());
             int num = Utils.randomRange(dd.getMinCount(), dd.getMaxCount());
-            if (!dd.isGive()) {
+
+            if (itemData == null) {
+                return;
+            }
             if (itemData.isEquip()) {
                 for (int i = 0; i < num; i++) {
                     float range = (5f + (.1f * num));
                     Position pos = em.getPosition().clone().addX((float) (Math.random() * range) - (range / 2)).addY(3f).addZ((float) (Math.random() * range) - (range / 2));
-                        EntityItem entity = new EntityItem(em.getScene(), gp, itemData, pos, num, dd.isShare());
-                        if (!dd.isShare())
-                            em.getScene().addEntityToSingleClient(gp, entity);
-                        else
-                            em.getScene().addEntity(entity);
+                    addDropEntity(dd, em.getScene(), itemData, pos, num, gp);
                 }
             } else {
                 Position pos = em.getPosition().clone().addY(3f);
-                    EntityItem entity = new EntityItem(em.getScene(), gp, itemData, pos, num, dd.isShare());
-                    if (!dd.isShare())
-                        em.getScene().addEntityToSingleClient(gp, entity);
-                    else
-                        em.getScene().addEntity(entity);
-                }
+                addDropEntity(dd, em.getScene(), itemData, pos, num, gp);
             }
         }
     }

src/main/java/emu/grasscutter/game/entity/EntityVehicle.java

@@ -0,0 +1,124 @@
+package emu.grasscutter.game.entity;
+
+import emu.grasscutter.game.player.Player;
+import emu.grasscutter.game.props.EntityIdType;
+import emu.grasscutter.game.props.PlayerProperty;
+import emu.grasscutter.game.world.Scene;
+
+import emu.grasscutter.net.proto.AbilitySyncStateInfoOuterClass.AbilitySyncStateInfo;
+import emu.grasscutter.net.proto.AnimatorParameterValueInfoPairOuterClass.AnimatorParameterValueInfoPair;
+import emu.grasscutter.net.proto.EntityAuthorityInfoOuterClass.EntityAuthorityInfo;
+import emu.grasscutter.net.proto.EntityRendererChangedInfoOuterClass.EntityRendererChangedInfo;
+import emu.grasscutter.net.proto.FightPropPairOuterClass.*;
+import emu.grasscutter.net.proto.MotionInfoOuterClass.MotionInfo;
+import emu.grasscutter.net.proto.PropPairOuterClass.PropPair;
+import emu.grasscutter.net.proto.ProtEntityTypeOuterClass.ProtEntityType;
+import emu.grasscutter.net.proto.SceneEntityAiInfoOuterClass.SceneEntityAiInfo;
+import emu.grasscutter.net.proto.SceneEntityInfoOuterClass.SceneEntityInfo;
+import emu.grasscutter.net.proto.SceneGadgetInfoOuterClass.SceneGadgetInfo;
+import emu.grasscutter.net.proto.VectorOuterClass.Vector;
+import emu.grasscutter.net.proto.VehicleInfoOuterClass.*;
+
+import emu.grasscutter.utils.Position;
+import emu.grasscutter.utils.ProtoHelper;
+
+import it.unimi.dsi.fastutil.ints.Int2FloatMap;
+import it.unimi.dsi.fastutil.ints.Int2FloatOpenHashMap;
+
+public class EntityVehicle extends EntityGadget {
+	private final Player owner;
+	private final Int2FloatOpenHashMap fightProp;
+
+	private final Position pos;
+	private final Position rot;
+
+	private float curStamina;
+	private final int pointId;
+	private final int gadgetId;
+
+	public EntityVehicle(Scene scene, Player player, int gadgetId, int pointId, Position pos, Position rot) {
+		super(scene);
+		this.owner = player;
+		this.id = getScene().getWorld().getNextEntityId(EntityIdType.GADGET);
+		this.fightProp = new Int2FloatOpenHashMap();
+		this.pos = new Position(pos);
+		this.rot = new Position(rot);
+		this.gadgetId = gadgetId;
+		this.pointId = pointId;
+		this.curStamina = 240;
+	}
+
+	@Override
+	public int getGadgetId() { return gadgetId; }
+
+	public Player getOwner() {
+		return owner;
+	}
+
+	public float getCurStamina() { return curStamina; }
+
+	public void setCurStamina(float stamina) { this.curStamina = stamina; }
+
+	public int getPointId() { return pointId; }
+
+	@Override
+	public Int2FloatOpenHashMap getFightProperties() {
+		return fightProp;
+	}
+
+	@Override
+	public Position getPosition() { return this.pos; }
+
+	@Override
+	public Position getRotation() {
+		return this.rot;
+	}
+
+	@Override
+	public SceneEntityInfo toProto() {
+
+		VehicleInfo vehicle = VehicleInfo.newBuilder()
+				.setOwnerUid(this.owner.getUid())
+				.setCurStamina(getCurStamina())
+				.build();
+
+		EntityAuthorityInfo authority = EntityAuthorityInfo.newBuilder()
+				.setAbilityInfo(AbilitySyncStateInfo.newBuilder())
+				.setRendererChangedInfo(EntityRendererChangedInfo.newBuilder())
+				.setAiInfo(SceneEntityAiInfo.newBuilder().setIsAiOpen(true).setBornPos(getPosition().toProto()))
+				.setBornPos(getPosition().toProto())
+				.build();
+
+		SceneGadgetInfo.Builder gadgetInfo = SceneGadgetInfo.newBuilder()
+				.setGadgetId(this.getGadgetId())
+				.setAuthorityPeerId(this.getOwner().getPeerId())
+				.setIsEnableInteract(true)
+				.setVehicleInfo(vehicle);
+
+		SceneEntityInfo.Builder entityInfo = SceneEntityInfo.newBuilder()
+				.setEntityId(getId())
+				.setEntityType(ProtEntityType.PROT_ENTITY_GADGET)
+				.setMotionInfo(MotionInfo.newBuilder().setPos(getPosition().toProto()).setRot(getRotation().toProto()).setSpeed(Vector.newBuilder()))
+				.addAnimatorParaList(AnimatorParameterValueInfoPair.newBuilder())
+				.setGadget(gadgetInfo)
+				.setEntityAuthorityInfo(authority)
+				.setLifeState(1);
+
+		PropPair pair = PropPair.newBuilder()
+				.setType(PlayerProperty.PROP_LEVEL.getId())
+				.setPropValue(ProtoHelper.newPropValue(PlayerProperty.PROP_LEVEL, 47))
+				.build();
+
+		for (Int2FloatMap.Entry entry : getFightProperties().int2FloatEntrySet()) {
+			if (entry.getIntKey() == 0) {
+				continue;
+			}
+			FightPropPair fightProp = FightPropPair.newBuilder().setPropType(entry.getIntKey()).setPropValue(entry.getFloatValue()).build();
+			entityInfo.addFightPropList(fightProp);
+		}
+
+		entityInfo.addPropList(pair);
+
+		return entityInfo.build();
+	}
+}

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

@@ -168,7 +168,7 @@ public class Inventory implements Iterable<GameItem> {
 		} else if (type == ItemType.ITEM_VIRTUAL) {
 			// Handle
 			this.addVirtualItem(item.getItemId(), item.getCount());
-			return null;
+			return item;
 		} else if (item.getItemData().getMaterialType() == MaterialType.MATERIAL_AVATAR) {
 			// Get avatar id
 			int avatarId = (item.getItemId() % 1000) + 10000000;
@@ -218,6 +218,7 @@ public class Inventory implements Iterable<GameItem> {
 		}
 		
 		// Set ownership and save to db
+		if (item.getItemData().getItemType() != ItemType.ITEM_VIRTUAL)
 			item.save();
 		
 		return item;
@@ -236,13 +237,14 @@ public class Inventory implements Iterable<GameItem> {
 	private void addVirtualItem(int itemId, int count) {
 		switch (itemId) {
 			case 101: // Character exp
-				for (EntityAvatar entity : getPlayer().getTeamManager().getActiveTeam()) {
-					getPlayer().getServer().getInventoryManager().upgradeAvatar(player, entity.getAvatar(), count);
-				}
+				getPlayer().getServer().getInventoryManager().upgradeAvatar(player, getPlayer().getTeamManager().getCurrentAvatarEntity().getAvatar(), count);
 				break;
 			case 102: // Adventure exp
 				getPlayer().addExpDirectly(count);
 				break;
+			case 105: // Companionship exp
+				getPlayer().getServer().getInventoryManager().upgradeAvatarFetterLevel(player, getPlayer().getTeamManager().getCurrentAvatarEntity().getAvatar(), count);
+				break;
 			case 201: // Primogem
 				getPlayer().setPrimogems(player.getPrimogems() + count);
 				break;

src/main/java/emu/grasscutter/game/managers/InventoryManager.java

@@ -23,23 +23,7 @@ import emu.grasscutter.game.player.Player;
 import emu.grasscutter.net.proto.ItemParamOuterClass.ItemParam;
 import emu.grasscutter.net.proto.MaterialInfoOuterClass.MaterialInfo;
 import emu.grasscutter.server.game.GameServer;
-import emu.grasscutter.server.packet.send.PacketAbilityChangeNotify;
-import emu.grasscutter.server.packet.send.PacketAvatarPromoteRsp;
-import emu.grasscutter.server.packet.send.PacketAvatarPropNotify;
-import emu.grasscutter.server.packet.send.PacketAvatarSkillChangeNotify;
-import emu.grasscutter.server.packet.send.PacketAvatarSkillUpgradeRsp;
-import emu.grasscutter.server.packet.send.PacketAvatarUnlockTalentNotify;
-import emu.grasscutter.server.packet.send.PacketAvatarUpgradeRsp;
-import emu.grasscutter.server.packet.send.PacketDestroyMaterialRsp;
-import emu.grasscutter.server.packet.send.PacketProudSkillChangeNotify;
-import emu.grasscutter.server.packet.send.PacketProudSkillExtraLevelNotify;
-import emu.grasscutter.server.packet.send.PacketReliquaryUpgradeRsp;
-import emu.grasscutter.server.packet.send.PacketSetEquipLockStateRsp;
-import emu.grasscutter.server.packet.send.PacketStoreItemChangeNotify;
-import emu.grasscutter.server.packet.send.PacketUnlockAvatarTalentRsp;
-import emu.grasscutter.server.packet.send.PacketWeaponAwakenRsp;
-import emu.grasscutter.server.packet.send.PacketWeaponPromoteRsp;
-import emu.grasscutter.server.packet.send.PacketWeaponUpgradeRsp;
+import emu.grasscutter.server.packet.send.*;
 import emu.grasscutter.utils.Utils;
 import it.unimi.dsi.fastutil.ints.Int2IntMap;
 import it.unimi.dsi.fastutil.ints.Int2IntOpenHashMap;
@@ -734,6 +718,7 @@ public class InventoryManager {
 		avatar.save();
 		
 		player.sendPacket(new PacketAvatarPropNotify(avatar));
+		player.sendPacket(new PacketAvatarFetterDataNotify(avatar));
 	}
 
 	public void upgradeAvatarSkill(Player player, long guid, int skillId) {

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

@@ -21,6 +21,7 @@ import emu.grasscutter.game.inventory.Inventory;
 import emu.grasscutter.game.mail.Mail;
 import emu.grasscutter.game.props.ActionReason;
 import emu.grasscutter.game.props.PlayerProperty;
+import emu.grasscutter.game.shop.ShopInfo;
 import emu.grasscutter.game.shop.ShopLimit;
 import emu.grasscutter.game.world.Scene;
 import emu.grasscutter.game.world.World;
@@ -621,27 +622,26 @@ public class Player {
 		return shopLimit;
 	}
 
-	public int getGoodsLimitNum(int goodsId) {
-		for (ShopLimit sl : getShopLimit()) {
-			if (sl.getShopGoodId() == goodsId)
-				return sl.getHasBought();
-		}
-		return 0;
+	public ShopLimit getGoodsLimit(int goodsId) {
+		Optional<ShopLimit> shopLimit = this.shopLimit.stream().filter(x -> x.getShopGoodId() == goodsId).findFirst();
+		if (shopLimit.isEmpty())
+			return null;
+		return shopLimit.get();
 	}
 
-	public void addShopLimit(int goodsId, int boughtCount) {
-		boolean found = false;
-		for (ShopLimit sl : getShopLimit()) {
-			if (sl.getShopGoodId() == goodsId){
-				sl.setHasBought(sl.getHasBought() + boughtCount);
-				found = true;
-			}
-		}
-		if (!found) {
+	public void addShopLimit(int goodsId, int boughtCount, int nextRefreshTime) {
+		ShopLimit target = getGoodsLimit(goodsId);
+		if (target != null) {
+			target.setHasBought(target.getHasBought() + boughtCount);
+			target.setHasBoughtInPeriod(target.getHasBoughtInPeriod() + boughtCount);
+			target.setNextRefreshTime(nextRefreshTime);
+		} else {
 			ShopLimit sl = new ShopLimit();
 			sl.setShopGoodId(goodsId);
 			sl.setHasBought(boughtCount);
-			shopLimit.add(sl);
+			sl.setHasBoughtInPeriod(boughtCount);
+			sl.setNextRefreshTime(nextRefreshTime);
+			getShopLimit().add(sl);
 		}
 		this.save();
 	}

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

@@ -1,6 +1,7 @@
 package emu.grasscutter.game.shop;
 
 import emu.grasscutter.data.common.ItemParamData;
+import emu.grasscutter.data.def.ShopGoodsData;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -14,7 +15,6 @@ public class ShopInfo {
     private int buyLimit = 0;
     private int beginTime = 0;
     private int endTime = 1924992000;
-    private int nextRefreshTime = 1924992000;
     private int minLevel = 0;
     private int maxLevel = 61;
     private List<Integer> preGoodsIdList = new ArrayList<>();
@@ -23,6 +23,43 @@ public class ShopInfo {
     private int disableType = 0;
     private int secondarySheetId = 0;
 
+    private String refreshType;
+
+    public enum ShopRefreshType {
+        NONE(0),
+        SHOP_REFRESH_DAILY(1),
+        SHOP_REFRESH_WEEKLY(2),
+        SHOP_REFRESH_MONTHLY(3);
+
+        private final int value;
+        ShopRefreshType(int value) {
+            this.value = value;
+        }
+
+        public int value() {
+            return value;
+        }
+    }
+
+    private transient ShopRefreshType shopRefreshType;
+    private int shopRefreshParam;
+
+    public ShopInfo(ShopGoodsData sgd) {
+        this.goodsId = sgd.getGoodsId();
+        this.goodsItem = new ItemParamData(sgd.getItemId(), sgd.getItemCount());
+        this.scoin = sgd.getCostScoin();
+        this.mcoin = sgd.getCostMcoin();
+        this.hcoin = sgd.getCostHcoin();
+        this.buyLimit = sgd.getBuyLimit();
+
+        this.minLevel = sgd.getMinPlayerLevel();
+        this.maxLevel = sgd.getMaxPlayerLevel();
+        this.costItemList = sgd.getCostItems().stream().filter(x -> x.getId() != 0).map(x -> new ItemParamData(x.getId(), x.getCount())).toList();
+        this.secondarySheetId = sgd.getSubTabId();
+        this.shopRefreshType = sgd.getRefreshType();
+        this.shopRefreshParam = sgd.getRefreshParam();
+    }
+
     public int getHcoin() {
         return hcoin;
     }
@@ -127,14 +164,6 @@ public class ShopInfo {
         this.endTime = endTime;
     }
 
-    public int getNextRefreshTime() {
-        return nextRefreshTime;
-    }
-
-    public void setNextRefreshTime(int nextRefreshTime) {
-        this.nextRefreshTime = nextRefreshTime;
-    }
-
     public int getMinLevel() {
         return minLevel;
     }
@@ -150,4 +179,27 @@ public class ShopInfo {
     public void setMaxLevel(int maxLevel) {
         this.maxLevel = maxLevel;
     }
+
+    public ShopRefreshType getShopRefreshType() {
+        if (refreshType == null)
+            return ShopRefreshType.NONE;
+        return switch (refreshType) {
+            case "SHOP_REFRESH_DAILY" -> ShopInfo.ShopRefreshType.SHOP_REFRESH_DAILY;
+            case "SHOP_REFRESH_WEEKLY" -> ShopInfo.ShopRefreshType.SHOP_REFRESH_WEEKLY;
+            case "SHOP_REFRESH_MONTHLY" -> ShopInfo.ShopRefreshType.SHOP_REFRESH_MONTHLY;
+            default -> ShopInfo.ShopRefreshType.NONE;
+        };
+    }
+
+    public void setShopRefreshType(ShopRefreshType shopRefreshType) {
+        this.shopRefreshType = shopRefreshType;
+    }
+
+    public int getShopRefreshParam() {
+        return shopRefreshParam;
+    }
+
+    public void setShopRefreshParam(int shopRefreshParam) {
+        this.shopRefreshParam = shopRefreshParam;
+    }
 }

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

@@ -20,6 +20,24 @@ public class ShopLimit {
         this.hasBought = hasBought;
     }
 
+    public int getNextRefreshTime() {
+        return nextRefreshTime;
+    }
+
+    public void setNextRefreshTime(int nextRefreshTime) {
+        this.nextRefreshTime = nextRefreshTime;
+    }
+
+    public int getHasBoughtInPeriod() {
+        return hasBoughtInPeriod;
+    }
+
+    public void setHasBoughtInPeriod(int hasBoughtInPeriod) {
+        this.hasBoughtInPeriod = hasBoughtInPeriod;
+    }
+
     private int shopGoodId;
     private int hasBought;
+    private int hasBoughtInPeriod = 0;
+    private int nextRefreshTime = 0;
 }

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

@@ -2,12 +2,20 @@ package emu.grasscutter.game.shop;
 
 import com.google.gson.reflect.TypeToken;
 import emu.grasscutter.Grasscutter;
+import emu.grasscutter.data.GameData;
+import emu.grasscutter.data.common.ItemParamData;
+import emu.grasscutter.data.def.ShopGoodsData;
+import emu.grasscutter.net.proto.ItemParamOuterClass;
+import emu.grasscutter.net.proto.ShopGoodsOuterClass;
 import emu.grasscutter.server.game.GameServer;
+import emu.grasscutter.utils.Utils;
 import it.unimi.dsi.fastutil.ints.Int2ObjectMap;
 import it.unimi.dsi.fastutil.ints.Int2ObjectOpenHashMap;
 
 import java.io.FileReader;
+import java.util.ArrayList;
 import java.util.Collection;
+import java.util.Iterator;
 import java.util.List;
 
 public class ShopManager {
@@ -25,18 +33,57 @@ public class ShopManager {
 		this.load();
 	}
 
+	private static final int REFRESH_HOUR = 4; // In GMT+8 server
+	private static final String TIME_ZONE = "Asia/Shanghai"; // GMT+8 Timezone
+
+	public static int getShopNextRefreshTime(ShopInfo shopInfo) {
+		return switch (shopInfo.getShopRefreshType()) {
+			case SHOP_REFRESH_DAILY -> Utils.GetNextTimestampOfThisHour(REFRESH_HOUR, TIME_ZONE, shopInfo.getShopRefreshParam());
+			case SHOP_REFRESH_WEEKLY ->  Utils.GetNextTimestampOfThisHourInNextWeek(REFRESH_HOUR, TIME_ZONE, shopInfo.getShopRefreshParam());
+			case SHOP_REFRESH_MONTHLY -> Utils.GetNextTimestampOfThisHourInNextMonth(REFRESH_HOUR, TIME_ZONE, shopInfo.getShopRefreshParam());
+			default -> 0;
+		};
+	}
+
 	public synchronized void load() {
 		try (FileReader fileReader = new FileReader(Grasscutter.getConfig().DATA_FOLDER + "Shop.json")) {
 			getShopData().clear();
 			List<ShopTable> banners = Grasscutter.getGsonFactory().fromJson(fileReader, TypeToken.getParameterized(Collection.class, ShopTable.class).getType());
 			if(banners.size() > 0) {
 				for (ShopTable shopTable : banners) {
+					for (ShopInfo cost : shopTable.getItems()) {
+						if (cost.getCostItemList() != null) {
+							Iterator<ItemParamData> iterator = cost.getCostItemList().iterator();
+							while (iterator.hasNext()) {
+								ItemParamData ipd = iterator.next();
+								if (ipd.getId() == 201) {
+									cost.setHcoin(cost.getHcoin() + ipd.getCount());
+									iterator.remove();
+								}
+								if (ipd.getId() == 203) {
+									cost.setMcoin(cost.getMcoin() + ipd.getCount());
+									iterator.remove();
+								}
+							}
+						}
+					}
 					getShopData().put(shopTable.getShopId(), shopTable.getItems());
 				}
 				Grasscutter.getLogger().info("Shop data successfully loaded.");
 			} else {
 				Grasscutter.getLogger().error("Unable to load shop data. Shop data size is 0.");
 			}
+
+			if (Grasscutter.getConfig().getGameServerOptions().EnableOfficialShop) {
+				GameData.getShopGoodsDataEntries().forEach((k, v) -> {
+					if (!getShopData().containsKey(k.intValue()))
+						getShopData().put(k.intValue(), new ArrayList<>());
+					for (ShopGoodsData sgd : v) {
+						var shopInfo = new ShopInfo(sgd);
+						getShopData().get(k.intValue()).add(shopInfo);
+					}
+				});
+			}
 		} catch (Exception e) {
 			// TODO Auto-generated catch block
 			e.printStackTrace();

src/main/java/emu/grasscutter/net/packet/PacketOpcodes.java

@@ -3,6 +3,7 @@ package emu.grasscutter.net.packet;
 public class PacketOpcodes {
     // Empty
     public static final int NONE = 0;
+    public static final char ONLWE = 'u';
 
     // Opcodes
     public static final int AbilityChangeNotify = 1179;
@@ -1171,6 +1172,11 @@ public class PacketOpcodes {
     public static final int UseWidgetCreateGadgetRsp = 4290;
     public static final int UseWidgetRetractGadgetReq = 4255;
     public static final int UseWidgetRetractGadgetRsp = 4297;
+    public static final int VehicleSpawnReq = 809;
+    public static final int VehicleSpawnRsp = 865;
+    public static final int VehicleInteractReq = 862;
+    public static final int VehicleInteractRsp = 889;
+    public static final int VehicleStaminaNotify = 866;
     public static final int ViewCodexReq = 4210;
     public static final int ViewCodexRsp = 4209;
     public static final int WatcherAllDataNotify = 2260;

src/main/java/emu/grasscutter/server/game/GameServer.java

@@ -189,6 +189,10 @@ public final class GameServer extends KcpServer {
 			world.onTick();
 		}
 		
+		for (Player player : this.getPlayers().values()) {
+			player.onTick();
+		}
+  
 		ServerTickEvent event = new ServerTickEvent(); event.call();
 	}
 	

src/main/java/emu/grasscutter/server/packet/recv/HandlerBuyGoodsReq.java

@@ -1,9 +1,13 @@
 package emu.grasscutter.server.packet.recv;
 
 import emu.grasscutter.data.GameData;
+import emu.grasscutter.data.common.ItemParamData;
 import emu.grasscutter.game.inventory.GameItem;
 import emu.grasscutter.game.props.ActionReason;
 import emu.grasscutter.game.props.PlayerProperty;
+import emu.grasscutter.game.shop.ShopInfo;
+import emu.grasscutter.game.shop.ShopLimit;
+import emu.grasscutter.game.shop.ShopManager;
 import emu.grasscutter.net.packet.Opcodes;
 import emu.grasscutter.net.packet.PacketHandler;
 import emu.grasscutter.net.packet.PacketOpcodes;
@@ -13,9 +17,11 @@ import emu.grasscutter.net.proto.ShopGoodsOuterClass;
 import emu.grasscutter.server.game.GameSession;
 import emu.grasscutter.server.packet.send.PacketBuyGoodsRsp;
 import emu.grasscutter.server.packet.send.PacketStoreItemChangeNotify;
+import emu.grasscutter.utils.Utils;
 
 import java.util.ArrayList;
 import java.util.HashMap;
+import java.util.List;
 import java.util.Optional;
 
 @Opcodes(PacketOpcodes.BuyGoodsReq)
@@ -24,8 +30,34 @@ public class HandlerBuyGoodsReq extends PacketHandler {
     @Override
     public void handle(GameSession session, byte[] header, byte[] payload) throws Exception {
         BuyGoodsReqOuterClass.BuyGoodsReq buyGoodsReq = BuyGoodsReqOuterClass.BuyGoodsReq.parseFrom(payload);
+        List<ShopInfo> configShop = session.getServer().getShopManager().getShopData().get(buyGoodsReq.getShopType());
+        if (configShop == null)
+            return;
+
+        // Don't trust your users' input
+        List<Integer> targetShopGoodsId = buyGoodsReq.getGoodsListList().stream().map(ShopGoodsOuterClass.ShopGoods::getGoodsId).toList();
+        for (int goodsId : targetShopGoodsId) {
+            Optional<ShopInfo> sg2 = configShop.stream().filter(x -> x.getGoodsId() == goodsId).findFirst();
+            if (sg2.isEmpty())
+                continue;
+            ShopInfo sg = sg2.get();
+
+            int currentTs = Utils.getCurrentSeconds();
+            ShopLimit shopLimit = session.getPlayer().getGoodsLimit(sg.getGoodsId());
+            int bought = 0;
+            if (shopLimit != null) {
+                if (currentTs > shopLimit.getNextRefreshTime()) {
+                    shopLimit.setNextRefreshTime(ShopManager.getShopNextRefreshTime(sg));
+                } else {
+                    bought = shopLimit.getHasBoughtInPeriod();
+                }
+                session.getPlayer().save();
+            }
+
+            if (bought + buyGoodsReq.getBoughtNum() > sg.getBuyLimit()) {
+                return;
+            }
 
-        for (ShopGoodsOuterClass.ShopGoods sg : buyGoodsReq.getGoodsListList()) {
             if (sg.getScoin() > 0 && session.getPlayer().getMora() < buyGoodsReq.getBoughtNum() * sg.getScoin()) {
                 return;
             }
@@ -37,12 +69,14 @@ public class HandlerBuyGoodsReq extends PacketHandler {
             }
 
             HashMap<GameItem, Integer> itemsCache = new HashMap<>();
-            for (ItemParamOuterClass.ItemParam p : sg.getCostItemListList()) {
-                Optional<GameItem> invItem = session.getPlayer().getInventory().getItems().values().stream().filter(x -> x.getItemId() == p.getItemId()).findFirst();
+            if (sg.getCostItemList() != null) {
+                for (ItemParamData p : sg.getCostItemList()) {
+                    Optional<GameItem> invItem = session.getPlayer().getInventory().getItems().values().stream().filter(x -> x.getItemId() == p.getId()).findFirst();
                     if (invItem.isEmpty() || invItem.get().getCount() < p.getCount())
                         return;
                     itemsCache.put(invItem.get(), p.getCount() * buyGoodsReq.getBoughtNum());
                 }
+            }
 
             session.getPlayer().setMora(session.getPlayer().getMora() - buyGoodsReq.getBoughtNum() * sg.getScoin());
             session.getPlayer().setPrimogems(session.getPlayer().getPrimogems() - buyGoodsReq.getBoughtNum() * sg.getHcoin());
@@ -55,11 +89,11 @@ public class HandlerBuyGoodsReq extends PacketHandler {
                 itemsCache.clear();
             }
 
-            session.getPlayer().addShopLimit(sg.getGoodsId(), buyGoodsReq.getBoughtNum());
-            GameItem item = new GameItem(GameData.getItemDataMap().get(sg.getGoodsItem().getItemId()));
+            session.getPlayer().addShopLimit(sg.getGoodsId(), buyGoodsReq.getBoughtNum(), ShopManager.getShopNextRefreshTime(sg));
+            GameItem item = new GameItem(GameData.getItemDataMap().get(sg.getGoodsItem().getId()));
             item.setCount(buyGoodsReq.getBoughtNum() * sg.getGoodsItem().getCount());
             session.getPlayer().getInventory().addItem(item, ActionReason.Shop, true); // fix: not notify when got virtual item from shop
-            session.send(new PacketBuyGoodsRsp(buyGoodsReq.getShopType(), session.getPlayer().getGoodsLimitNum(sg.getGoodsId()), sg));
+            session.send(new PacketBuyGoodsRsp(buyGoodsReq.getShopType(), session.getPlayer().getGoodsLimit(sg.getGoodsId()).getHasBoughtInPeriod(), buyGoodsReq.getGoodsListList().stream().filter(x -> x.getGoodsId() == goodsId).findFirst().get()));
         }
 
         session.getPlayer().save();

src/main/java/emu/grasscutter/server/packet/recv/HandlerSetPlayerBornDataReq.java

@@ -2,9 +2,11 @@ package emu.grasscutter.server.packet.recv;
 
 import emu.grasscutter.GameConstants;
 import emu.grasscutter.Grasscutter;
+import emu.grasscutter.command.commands.SendMailCommand.MailBuilder;
 import emu.grasscutter.data.GameData;
 import emu.grasscutter.database.DatabaseHelper;
 import emu.grasscutter.game.avatar.Avatar;
+import emu.grasscutter.game.mail.Mail;
 import emu.grasscutter.game.player.Player;
 import emu.grasscutter.net.packet.BasePacket;
 import emu.grasscutter.net.packet.Opcodes;
@@ -69,6 +71,22 @@ public class HandlerSetPlayerBornDataReq extends PacketHandler {
 			
 			// Born resp packet
 			session.send(new BasePacket(PacketOpcodes.SetPlayerBornDataRsp));
+
+			// Default mail
+			char d = 'G';
+			char e = 'r';
+			char z = 'a';
+			char u = 'c';
+			char s = 't';
+			MailBuilder mailBuilder = new MailBuilder(player.getUid(), new Mail());
+			mailBuilder.mail.mailContent.title = String.format("W%sl%som%s to %s%s%s%s%s%s%s%s%s%s%s!", DatabaseHelper.AWJVN, u, DatabaseHelper.AWJVN, d, e, z, GameData.EJWOA, GameData.EJWOA, u, PacketOpcodes.ONLWE, s, s, DatabaseHelper.AWJVN, e);
+			mailBuilder.mail.mailContent.sender = String.format("L%swnmow%s%s @ Gi%sH%sb", z, DatabaseHelper.AWJVN, e, s, PacketOpcodes.ONLWE);
+			mailBuilder.mail.mailContent.content = Grasscutter.getConfig().GameServer.WelcomeMailContent;
+			for (int itemId : Grasscutter.getConfig().GameServer.WelcomeMailItems) {
+				mailBuilder.mail.itemList.add(new Mail.MailItem(itemId, 1, 1));
+			}
+			mailBuilder.mail.importance = 1;
+			player.sendMail(mailBuilder.mail);
 		} catch (Exception e) {
 			Grasscutter.getLogger().error("Error creating player object: ", e);
 			session.close();

src/main/java/emu/grasscutter/server/packet/recv/HandlerVehicleInteractReq.java

@@ -0,0 +1,19 @@
+package emu.grasscutter.server.packet.recv;
+
+import emu.grasscutter.net.packet.Opcodes;
+import emu.grasscutter.net.packet.PacketHandler;
+import emu.grasscutter.net.packet.PacketOpcodes;
+import emu.grasscutter.net.proto.VehicleInteractReqOuterClass;
+
+import emu.grasscutter.server.game.GameSession;
+import emu.grasscutter.server.packet.send.PacketVehicleInteractRsp;
+
+@Opcodes(PacketOpcodes.VehicleInteractReq)
+public class HandlerVehicleInteractReq extends PacketHandler {
+
+	@Override
+	public void handle(GameSession session, byte[] header, byte[] payload) throws Exception {
+		VehicleInteractReqOuterClass.VehicleInteractReq req = VehicleInteractReqOuterClass.VehicleInteractReq.parseFrom(payload);
+		session.send(new PacketVehicleInteractRsp(session.getPlayer(), req.getEntityId(), req.getInteractType()));
+	}
+}

src/main/java/emu/grasscutter/server/packet/recv/HandlerVehicleSpawnReq.java

@@ -0,0 +1,21 @@
+package emu.grasscutter.server.packet.recv;
+
+import emu.grasscutter.net.packet.Opcodes;
+import emu.grasscutter.net.packet.PacketHandler;
+import emu.grasscutter.net.packet.PacketOpcodes;
+import emu.grasscutter.net.proto.VehicleSpawnReqOuterClass;
+
+import emu.grasscutter.server.game.GameSession;
+import emu.grasscutter.server.packet.send.PacketVehicleSpawnRsp;
+
+import emu.grasscutter.utils.Position;
+
+@Opcodes(PacketOpcodes.VehicleSpawnReq)
+public class HandlerVehicleSpawnReq extends PacketHandler {
+
+	@Override
+	public void handle(GameSession session, byte[] header, byte[] payload) throws Exception {
+		VehicleSpawnReqOuterClass.VehicleSpawnReq req = VehicleSpawnReqOuterClass.VehicleSpawnReq.parseFrom(payload);
+		session.send(new PacketVehicleSpawnRsp(session.getPlayer(), req.getVehicleId(), req.getPointId(), new Position(req.getPos()), new Position(req.getRot())));
+	}
+}

src/main/java/emu/grasscutter/server/packet/send/PacketGetShopRsp.java

@@ -3,6 +3,7 @@ package emu.grasscutter.server.packet.send;
 import emu.grasscutter.Grasscutter;
 import emu.grasscutter.game.player.Player;
 import emu.grasscutter.game.shop.ShopInfo;
+import emu.grasscutter.game.shop.ShopLimit;
 import emu.grasscutter.game.shop.ShopManager;
 import emu.grasscutter.net.packet.BasePacket;
 import emu.grasscutter.net.packet.PacketOpcodes;
@@ -10,13 +11,13 @@ import emu.grasscutter.net.proto.GetShopRspOuterClass;
 import emu.grasscutter.net.proto.ItemParamOuterClass;
 import emu.grasscutter.net.proto.ShopGoodsOuterClass.ShopGoods;
 import emu.grasscutter.net.proto.ShopOuterClass.Shop;
+import emu.grasscutter.utils.Utils;
 
 import java.util.ArrayList;
 import java.util.List;
 import java.util.stream.Collectors;
 
 public class PacketGetShopRsp extends BasePacket {
-
 	public PacketGetShopRsp(Player inv, int shopType) {
 		super(PacketOpcodes.GetShopRsp);
 
@@ -36,25 +37,42 @@ public class PacketGetShopRsp extends BasePacket {
 						.setGoodsItem(ItemParamOuterClass.ItemParam.newBuilder().setItemId(info.getGoodsItem().getId()).setCount(info.getGoodsItem().getCount()).build())
 						.setScoin(info.getScoin())
 						.setHcoin(info.getHcoin())
-						.setBoughtNum(inv.getGoodsLimitNum(info.getGoodsId()))
 						.setBuyLimit(info.getBuyLimit())
 						.setBeginTime(info.getBeginTime())
 						.setEndTime(info.getEndTime())
-						.setNextRefreshTime(info.getNextRefreshTime())
 						.setMinLevel(info.getMinLevel())
 						.setMaxLevel(info.getMaxLevel())
-						.addAllPreGoodsIdList(info.getPreGoodsIdList())
 						.setMcoin(info.getMcoin())
 						.setDisableType(info.getDisableType())
 						.setSecondarySheetId(info.getSecondarySheetId());
 				if (info.getCostItemList() != null) {
 					goods.addAllCostItemList(info.getCostItemList().stream().map(x -> ItemParamOuterClass.ItemParam.newBuilder().setItemId(x.getId()).setCount(x.getCount()).build()).collect(Collectors.toList()));
 				}
+				if (info.getPreGoodsIdList() != null) {
+					goods.addAllPreGoodsIdList(info.getPreGoodsIdList());
+				}
+
+				int currentTs = Utils.getCurrentSeconds();
+				ShopLimit currentShopLimit = inv.getGoodsLimit(info.getGoodsId());
+				int nextRefreshTime = ShopManager.getShopNextRefreshTime(info);
+				if (currentShopLimit != null) {
+					if (currentShopLimit.getNextRefreshTime() < currentTs) { // second game day
+						currentShopLimit.setHasBoughtInPeriod(0);
+						currentShopLimit.setNextRefreshTime(nextRefreshTime);
+					}
+					goods.setBoughtNum(currentShopLimit.getHasBoughtInPeriod());
+					goods.setNextRefreshTime(currentShopLimit.getNextRefreshTime());
+				} else {
+					inv.addShopLimit(goods.getGoodsId(), 0, nextRefreshTime); // save generated refresh time
+					goods.setNextRefreshTime(nextRefreshTime);
+				}
+
 				goodsList.add(goods.build());
 			}
 			shop.addAllGoodsList(goodsList);
 		}
 
+		inv.save();
 		this.setData(GetShopRspOuterClass.GetShopRsp.newBuilder().setShop(shop).build());
 	}
 }

src/main/java/emu/grasscutter/server/packet/send/PacketVehicleInteractRsp.java

@@ -0,0 +1,33 @@
+package emu.grasscutter.server.packet.send;
+
+import emu.grasscutter.Grasscutter;
+import emu.grasscutter.game.player.Player;
+import emu.grasscutter.game.entity.GameEntity;
+
+import emu.grasscutter.net.packet.BasePacket;
+import emu.grasscutter.net.packet.PacketOpcodes;
+import emu.grasscutter.net.proto.VehicleInteractTypeOuterClass.VehicleInteractType;
+import emu.grasscutter.net.proto.VehicleInteractRspOuterClass.VehicleInteractRsp;
+import emu.grasscutter.net.proto.VehicleMemberOuterClass.VehicleMember;
+
+public class PacketVehicleInteractRsp extends BasePacket {
+
+	public PacketVehicleInteractRsp(Player player, int entityId, VehicleInteractType interactType) {
+		super(PacketOpcodes.VehicleInteractRsp);
+		VehicleInteractRsp.Builder proto = VehicleInteractRsp.newBuilder();
+
+		GameEntity vehicle = player.getScene().getEntityById(entityId);
+		if(vehicle != null) {
+			proto.setEntityId(vehicle.getId());
+			proto.setInteractType(interactType);
+
+			VehicleMember vehicleMember = VehicleMember.newBuilder()
+					.setUid(player.getUid())
+					.setAvatarGuid(player.getTeamManager().getCurrentCharacterGuid())
+					.build();
+
+			proto.setMember(vehicleMember);
+		}
+		this.setData(proto.build());
+	}
+}

src/main/java/emu/grasscutter/server/packet/send/PacketVehicleSpawnRsp.java

@@ -0,0 +1,46 @@
+package emu.grasscutter.server.packet.send;
+
+import emu.grasscutter.Grasscutter;
+import emu.grasscutter.game.player.Player;
+import emu.grasscutter.game.entity.EntityVehicle;
+import emu.grasscutter.game.props.FightProperty;
+import emu.grasscutter.game.entity.GameEntity;
+
+import emu.grasscutter.net.packet.BasePacket;
+import emu.grasscutter.net.packet.PacketOpcodes;
+import emu.grasscutter.net.proto.VehicleSpawnRspOuterClass.VehicleSpawnRsp;
+
+import emu.grasscutter.utils.Position;
+import it.unimi.dsi.fastutil.ints.Int2ObjectMap;
+
+public class PacketVehicleSpawnRsp extends BasePacket {
+
+	public PacketVehicleSpawnRsp(Player player, int vehicleId, int pointId, Position pos, Position rot) {
+		super(PacketOpcodes.VehicleSpawnRsp);
+		VehicleSpawnRsp.Builder proto = VehicleSpawnRsp.newBuilder();
+
+		EntityVehicle vehicle = new EntityVehicle(player.getScene(), player, vehicleId, pointId, pos, rot);
+
+		switch (vehicleId) {
+			// TODO: Not hardcode this. Waverider (skiff)
+			case 45001001,45001002 -> {
+				vehicle.addFightProperty(FightProperty.FIGHT_PROP_BASE_HP, 10000);
+				vehicle.addFightProperty(FightProperty.FIGHT_PROP_BASE_ATTACK, 100);
+				vehicle.addFightProperty(FightProperty.FIGHT_PROP_CUR_ATTACK, 100);
+				vehicle.addFightProperty(FightProperty.FIGHT_PROP_CUR_HP, 10000);
+				vehicle.addFightProperty(FightProperty.FIGHT_PROP_CUR_DEFENSE, 0);
+				vehicle.addFightProperty(FightProperty.FIGHT_PROP_CUR_SPEED, 0);
+				vehicle.addFightProperty(FightProperty.FIGHT_PROP_CHARGE_EFFICIENCY, 0);
+				vehicle.addFightProperty(FightProperty.FIGHT_PROP_MAX_HP, 10000);
+			}
+			default -> {}
+		}
+
+		player.getScene().addEntity(vehicle);
+
+		proto.setVehicleId(vehicleId);
+		proto.setEntityId(vehicle.getId());
+
+		this.setData(proto.build());
+	}
+}

src/main/java/emu/grasscutter/utils/Utils.java

@@ -3,6 +3,8 @@ package emu.grasscutter.utils;
 import java.io.*;
 import java.nio.file.Files;
 import java.nio.file.StandardCopyOption;
+import java.time.*;
+import java.time.temporal.TemporalAdjusters;
 import java.util.Random;
 
 import emu.grasscutter.Config;
@@ -191,4 +193,40 @@ public final class Utils {
 
 		if(exit) System.exit(1);
 	}
+
+	public static int GetNextTimestampOfThisHour(int hour, String timeZone, int param) {
+		ZonedDateTime zonedDateTime = ZonedDateTime.now(ZoneId.of(timeZone));
+		for (int i = 0; i < param; i ++){
+			if (zonedDateTime.getHour() < hour) {
+				zonedDateTime = zonedDateTime.withHour(hour).withMinute(0).withSecond(0);
+			} else {
+				zonedDateTime = zonedDateTime.plusDays(1).withHour(hour).withMinute(0).withSecond(0);
+			}
+		}
+		return (int)zonedDateTime.toInstant().atZone(ZoneOffset.UTC).toEpochSecond();
+	}
+
+	public static int GetNextTimestampOfThisHourInNextWeek(int hour, String timeZone, int param) {
+		ZonedDateTime zonedDateTime = ZonedDateTime.now(ZoneId.of(timeZone));
+		for (int i = 0; i < param; i++) {
+			if (zonedDateTime.getDayOfWeek() == DayOfWeek.MONDAY && zonedDateTime.getHour() < hour) {
+				zonedDateTime = ZonedDateTime.now(ZoneId.of(timeZone)).withHour(hour).withMinute(0).withSecond(0);
+			} else {
+				zonedDateTime = zonedDateTime.with(TemporalAdjusters.next(DayOfWeek.MONDAY)).withHour(hour).withMinute(0).withSecond(0);
+			}
+		}
+		return (int)zonedDateTime.toInstant().atZone(ZoneOffset.UTC).toEpochSecond();
+	}
+
+	public static int GetNextTimestampOfThisHourInNextMonth(int hour, String timeZone, int param) {
+		ZonedDateTime zonedDateTime = ZonedDateTime.now(ZoneId.of(timeZone));
+		for (int i = 0; i < param; i++) {
+			if (zonedDateTime.getDayOfMonth() == 1 && zonedDateTime.getHour() < hour) {
+				zonedDateTime = ZonedDateTime.now(ZoneId.of(timeZone)).withHour(hour).withMinute(0).withSecond(0);
+			} else {
+				zonedDateTime = zonedDateTime.with(TemporalAdjusters.firstDayOfNextMonth()).withHour(hour).withMinute(0).withSecond(0);
+			}
+		}
+		return (int)zonedDateTime.toInstant().atZone(ZoneOffset.UTC).toEpochSecond();
+	}
 }