Fix sitting in chairs

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

@@ -355,6 +355,8 @@ public class PacketOpcodes {
     public static final int EvtAvatarSitDownNotify = 392;
     public static final int EvtAvatarStandUpNotify = 358;
     public static final int EvtAvatarUpdateFocusNotify = 365;
+    public static final int EvtAvatarLockChairReq = 354;
+    public static final int EvtAvatarLockChairRsp = 335;
     public static final int EvtBeingHitNotify = 360;
     public static final int EvtBeingHitsCombineNotify = 381;
     public static final int EvtBulletDeactiveNotify = 388;

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

@@ -0,0 +1,25 @@
+package emu.grasscutter.server.packet.recv;
+
+import emu.grasscutter.game.entity.EntityAvatar;
+import emu.grasscutter.net.packet.Opcodes;
+import emu.grasscutter.net.packet.PacketHandler;
+import emu.grasscutter.net.packet.PacketOpcodes;
+import emu.grasscutter.net.proto.EvtAvatarLockChairReqOuterClass.EvtAvatarLockChairReq;
+import emu.grasscutter.net.proto.PacketHeadOuterClass.PacketHead;
+import emu.grasscutter.server.game.GameSession;
+import emu.grasscutter.server.packet.send.PacketEvtAvatarLockChairRsp;
+
+@Opcodes(PacketOpcodes.EvtAvatarLockChairReq)
+public class HandlerEvtAvatarLockChairReq extends PacketHandler {
+
+    @Override
+    public void handle(GameSession session, byte[] header, byte[] payload) throws Exception {
+        PacketHead head = PacketHead.parseFrom(header);
+        EvtAvatarLockChairReq lockChairReq = EvtAvatarLockChairReq.parseFrom(payload);
+
+        EntityAvatar entityAvatar = session.getPlayer().getTeamManager().getCurrentAvatarEntity();
+
+        session.send(new PacketEvtAvatarLockChairRsp(head.getClientSequenceId(), entityAvatar, lockChairReq));
+    }
+
+}

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

@@ -1,9 +1,9 @@
 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.EvtAvatarSitDownNotifyOuterClass.EvtAvatarSitDownNotify;
-import emu.grasscutter.net.packet.PacketHandler;
 import emu.grasscutter.server.game.GameSession;
 import emu.grasscutter.server.packet.send.PacketEvtAvatarSitDownNotify;
 
@@ -14,7 +14,7 @@ public class HandlerEvtAvatarSitDownNotify extends PacketHandler {
     public void handle(GameSession session, byte[] header, byte[] payload) throws Exception {
         EvtAvatarSitDownNotify notify = EvtAvatarSitDownNotify.parseFrom(payload);
 
-        session.send(new PacketEvtAvatarSitDownNotify(notify));
+        session.getPlayer().getScene().broadcastPacket(new PacketEvtAvatarSitDownNotify(notify));
     }
 
 }

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

@@ -0,0 +1,20 @@
+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.EvtAvatarStandUpNotifyOuterClass.EvtAvatarStandUpNotify;
+import emu.grasscutter.server.game.GameSession;
+import emu.grasscutter.server.packet.send.PacketEvtAvatarStandUpNotify;
+
+@Opcodes(PacketOpcodes.EvtAvatarStandUpNotify)
+public class HandlerEvtAvatarStandUpNotify extends PacketHandler {
+
+    @Override
+    public void handle(GameSession session, byte[] header, byte[] payload) throws Exception {
+        EvtAvatarStandUpNotify notify = EvtAvatarStandUpNotify.parseFrom(payload);
+
+        session.getPlayer().getScene().broadcastPacket(new PacketEvtAvatarStandUpNotify(notify));
+    }
+
+}

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

@@ -0,0 +1,23 @@
+package emu.grasscutter.server.packet.send;
+
+import emu.grasscutter.game.entity.EntityAvatar;
+import emu.grasscutter.net.packet.BasePacket;
+import emu.grasscutter.net.packet.PacketOpcodes;
+import emu.grasscutter.net.proto.EvtAvatarLockChairReqOuterClass.EvtAvatarLockChairReq;
+import emu.grasscutter.net.proto.EvtAvatarLockChairRspOuterClass.EvtAvatarLockChairRsp;
+import emu.grasscutter.net.proto.RetcodeOuterClass;
+
+public class PacketEvtAvatarLockChairRsp extends BasePacket {
+    public PacketEvtAvatarLockChairRsp(int clientSequence, EntityAvatar entityAvatar, EvtAvatarLockChairReq lockChairReq) {
+        super(PacketOpcodes.EvtAvatarLockChairRsp);
+
+        EvtAvatarLockChairRsp p = EvtAvatarLockChairRsp.newBuilder()
+                .setRetcode(RetcodeOuterClass.Retcode.RET_SUCC_VALUE)
+                .setEntityId(entityAvatar.getId())
+                .setPosition(lockChairReq.getPosition())
+                .setChairId(lockChairReq.getChairId())
+                .build();
+
+        this.setData(p);
+    }
+}

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

@@ -0,0 +1,21 @@
+package emu.grasscutter.server.packet.send;
+
+import emu.grasscutter.net.packet.BasePacket;
+import emu.grasscutter.net.packet.PacketOpcodes;
+import emu.grasscutter.net.proto.EvtAvatarStandUpNotifyOuterClass.EvtAvatarStandUpNotify;
+
+public class PacketEvtAvatarStandUpNotify extends BasePacket {
+
+    public PacketEvtAvatarStandUpNotify(EvtAvatarStandUpNotify notify) {
+        super(PacketOpcodes.EvtAvatarStandUpNotify);
+
+        EvtAvatarStandUpNotify proto = EvtAvatarStandUpNotify.newBuilder()
+                .setEntityId(notify.getEntityId())
+                .setDirection(notify.getDirection())
+                .setPerformID(notify.getPerformID())
+                .setChairId(notify.getChairId())
+                .build();
+
+        this.setData(proto);
+    }
+}