drowning added

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

+package emu.grasscutter.server.packet.recv;
+
+import emu.grasscutter.game.entity.GenshinEntity;
+import emu.grasscutter.game.props.LifeState;
+import emu.grasscutter.net.packet.Opcodes;
+import emu.grasscutter.net.packet.PacketHandler;
+import emu.grasscutter.net.packet.PacketOpcodes;
+import emu.grasscutter.net.proto.SceneEntityDrownReqOuterClass.SceneEntityDrownReq;
+import emu.grasscutter.net.proto.VisionTypeOuterClass;
+import emu.grasscutter.server.game.GameSession;
+import emu.grasscutter.server.packet.send.PacketAvatarChangeCostumeRsp;
+import emu.grasscutter.server.packet.send.PacketLifeStateChangeNotify;
+import emu.grasscutter.server.packet.send.PacketSceneEntityDisappearNotify;
+import emu.grasscutter.server.packet.send.PacketSceneEntityDrownRsp;
+
+@Opcodes(PacketOpcodes.SceneEntityDrownReq)
+public class HandlerSceneEntityDrownReq extends PacketHandler {
+
+    @Override
+    public void handle(GameSession session, byte[] header, byte[] payload) throws Exception {
+        SceneEntityDrownReq req = SceneEntityDrownReq.parseFrom(payload);
+
+
+        GenshinEntity entity = session.getPlayer().getScene().getEntityById(req.getEntityId());
+
+
+        PacketLifeStateChangeNotify lifeStateChangeNotify = new PacketLifeStateChangeNotify(entity, entity, LifeState.LIFE_DEAD);
+        PacketSceneEntityDrownRsp drownRsp = new PacketSceneEntityDrownRsp(req.getEntityId());
+
+
+
+        //kill entity + broadcast it
+
+        session.getPlayer().getScene().broadcastPacket(lifeStateChangeNotify);
+        session.getPlayer().getScene().broadcastPacket(drownRsp);
+
+        //TODO: make a list somewhere of all entities to remove per tick rather than one by one
+
+        session.getPlayer().getScene().removeEntity(entity, VisionTypeOuterClass.VisionType.VisionDie);
+
+    }
+
+}

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

+package emu.grasscutter.server.packet.send;
+
+public class PacketSceneEntityDrownReq {
+}