Merge pull request #41 from w4123/npctalk_patch

Try to implement NpcTalk packets

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

+package emu.grasscutter.server.packet.recv;
+
+import emu.grasscutter.game.inventory.GenshinItem;
+import emu.grasscutter.net.packet.Opcodes;
+import emu.grasscutter.net.packet.PacketOpcodes;
+import emu.grasscutter.net.proto.NpcTalkReqOuterClass.NpcTalkReq;
+import emu.grasscutter.net.packet.PacketHandler;
+import emu.grasscutter.server.game.GameSession;
+import emu.grasscutter.server.packet.send.PacketNpcTalkRsp;
+
+@Opcodes(PacketOpcodes.NpcTalkReq)
+public class HandlerNpcTalkReq extends PacketHandler {
+	
+	@Override
+	public void handle(GameSession session, byte[] header, byte[] payload) throws Exception {
+		NpcTalkReq req = NpcTalkReq.parseFrom(payload);
+
+		session.send(new PacketNpcTalkRsp(req.getNpcEntityId(), req.getTalkId(), req.getEntityId()));
+	}
+
+}

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

+package emu.grasscutter.server.packet.send;
+
+import emu.grasscutter.net.packet.GenshinPacket;
+import emu.grasscutter.net.packet.PacketOpcodes;
+import emu.grasscutter.net.proto.NpcTalkRspOuterClass.NpcTalkRsp;
+
+public class PacketNpcTalkRsp extends GenshinPacket {
+    public PacketNpcTalkRsp(int npcEntityId, int curTalkId, int entityId) {
+        super(PacketOpcodes.NpcTalkRsp);
+
+        NpcTalkRsp p = NpcTalkRsp.newBuilder()
+                .setNpcEntityId(npcEntityId)
+                .setCurTalkId(curTalkId)
+                .setEntityId(entityId)
+                .build();
+
+        this.setData(p);
+    }
+}