Implement 40250 classic client port
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shenlei
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#pragma once
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// ClassicSession — MT_PROTOCOL=classic: drives ClassicStream through
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// HANDSHAKE -> LOGIN -> SELECT -> LOADING -> GAME and parses GC packets into a
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// shared EntityStore. See docs/CLIENT-40250-PORT.md §4 / §8.
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//
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// The stock 40250 server uses _IMPROVED_PACKET_ENCRYPTION_; ClassicStream
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// negotiates that DH2 + CTR session before the first login packet.
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#include "classic_parser.h"
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#include "classic_stream.h"
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#include "wire_classic.h"
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#include "../entity_store.h"
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#include "../i_net_session.h"
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#include <cstddef>
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#include <cstdint>
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#include <functional>
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#include <string>
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namespace mtnet::classic {
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class ClassicSession : public mtnet::INetSession {
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public:
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ClassicSession();
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// --- INetSession ---
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bool connect(const std::string &game_host, uint16_t game_port, const std::string &id,
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const std::string &pw) override;
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void disconnect() override;
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bool select_char(int slot) override;
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bool enter_game() override;
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bool create_character(int slot, const std::string &name, int job, int shape,
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int con, int intel, int str, int dex);
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bool delete_character(int slot, const std::string &private_code);
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bool change_name(int slot, const std::string &name);
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bool send_empire(uint8_t empire);
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void pump() override;
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Stage stage() const override { return m_stage; }
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const std::string &last_error() const override { return m_last_error; }
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EntityStore &world() override { return m_world; }
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bool send_move(uint8_t func, uint8_t arg, float rot_deg, int32_t x, int32_t y,
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uint32_t time_ms = 0) override;
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bool send_attack(uint8_t type, uint32_t victim_vid) override;
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bool send_chat(uint8_t type, const std::string &text) override;
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bool send_target(uint32_t vid) override;
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bool send_character_position(uint8_t position) override;
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bool send_click_npc(uint32_t vid) override;
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bool send_script_answer(uint8_t answer) override;
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bool send_item_use(uint8_t window, uint16_t cell) override;
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bool send_item_move(uint8_t window, uint16_t cell, uint8_t to_window, uint16_t to_cell,
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uint8_t count) override;
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bool send_item_drop(uint8_t window, uint16_t cell, uint32_t gold, uint8_t count) override;
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bool send_item_pickup(uint32_t ground_vid) override;
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bool send_use_skill(uint32_t skill_vnum, uint32_t target_vid) override;
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bool send_item_use_to_item(uint8_t window, uint16_t cell, uint8_t target_window,
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uint16_t target_cell);
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bool send_item_give(uint32_t target_vid, uint8_t window, uint16_t cell, uint8_t count);
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bool send_request_warp();
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bool send_fishing(uint8_t rot);
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bool send_dungeon();
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bool send_sync_positions(const std::vector<SyncPosElement> &positions);
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bool send_whisper(const std::string &to, const std::string &text);
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bool send_shoot(uint8_t type);
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bool send_add_fly_targeting(uint32_t target_vid, int32_t x, int32_t y);
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bool send_quickslot_add(uint8_t pos, uint8_t type, uint8_t ref);
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bool send_quickslot_del(uint8_t pos);
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bool send_quickslot_swap(uint8_t pos, uint8_t pos_to);
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bool send_script_button(uint32_t index);
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bool send_script_select_item(uint32_t selection);
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bool send_quest_input(const std::string &text);
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bool send_quest_confirm(bool yes, uint32_t request_pid);
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bool send_quest_cancel();
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bool send_party_invite(uint32_t vid);
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bool send_party_answer(uint32_t leader_vid, bool accept);
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bool send_party_remove(uint32_t pid);
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bool send_party_set_state(uint32_t pid, uint8_t role, bool on);
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bool send_party_use_skill(uint8_t skill_index, uint32_t vid);
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bool send_party_parameter(uint8_t mode);
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bool send_shop_buy(uint8_t pos, uint8_t count);
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bool send_shop_sell(uint8_t pos, uint8_t count);
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bool send_shop_close();
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bool send_private_shop(const std::string &sign, const std::vector<CGMyShopItem> &items);
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bool send_cube_make(int result_index);
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bool send_cube_result_list(int npc_vnum);
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bool send_cube_materials(int start_index, int count);
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bool send_cube_open();
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bool send_cube_close();
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bool send_cube_list();
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bool send_cube_add_item(int cube_index, int inventory_index);
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bool send_cube_delete_item(int cube_index);
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bool send_guild_sub(uint8_t subheader);
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bool send_guild_u32(uint8_t subheader, uint32_t value);
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bool send_guild_i32(uint8_t subheader, int32_t value);
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bool send_guild_grade_name(uint8_t grade, const std::string &name);
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bool send_guild_grade_authority(uint8_t grade, uint8_t authority);
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bool send_guild_member_grade(uint32_t pid, uint8_t grade);
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bool send_guild_member_general(uint32_t pid, bool enabled);
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bool send_guild_comment(const std::string &text);
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bool send_guild_invite_answer(uint32_t guild_id, bool accept);
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bool send_guild_answer_make(const std::string &name);
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bool send_guild_skill(uint32_t skill_vnum, uint32_t target_pid);
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bool send_refine(uint8_t pos, uint8_t type);
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bool send_dragon_soul_refine(uint8_t subheader, const ItemPos *grid, size_t count);
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bool send_friend_add(const std::string &name) override;
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bool send_friend_remove(const std::string &name) override;
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bool send_exchange_start(uint32_t partner_vid) override;
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bool send_exchange_item_add(uint8_t inv_window, uint16_t inv_cell,
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uint8_t display_pos) override;
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bool send_exchange_gold(uint32_t gold) override;
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bool send_exchange_accept() override;
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bool send_exchange_cancel() override;
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bool send_safebox_checkin(uint8_t safe_pos, uint8_t inv_window,
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uint16_t inv_cell) override;
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bool send_safebox_checkout(uint8_t safe_pos, uint8_t inv_window,
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uint16_t inv_cell) override;
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bool send_safebox_move(uint16_t from_cell, uint16_t to_cell, uint8_t count) override;
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bool send_mall_checkout(uint8_t mall_pos, uint8_t inv_window,
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uint16_t inv_cell) override;
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// --- callbacks ---
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std::function<void(const std::vector<CharSlot> &)> on_char_list;
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std::function<void()> on_entered_game;
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std::function<void(Stage)> on_stage_change;
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std::function<void(const std::string &)> on_error;
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// Set up creds + state WITHOUT opening a socket — feed the stream by hand via
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// stream().feed()/take_outgoing(). Used by the offline flow test and any
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// non-TCP transport. connect() == start_offline() + m_stream.connect().
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void start_offline(const std::string &id, const std::string &pw);
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// --- accessors ---
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const std::vector<CharSlot> &char_slots() const { return m_parser.char_slots(); }
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ClassicStream &stream() { return m_stream; } // for tests / trace
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ClassicParser &parser() { return m_parser; }
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uint32_t now_ms() const { return m_now; }
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void set_now(uint32_t ms) {
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m_now = ms;
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m_world.set_now(ms);
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}
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// auto-send CG_ENTERGAME this many ms after entering PHASE_LOADING (0 = never,
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// caller drives enter_game()). Default mirrors the m2dev client's ~1.5s.
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void set_auto_entergame_delay(uint32_t ms) { m_entergame_delay = ms; }
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void set_wire_trace(bool on) { m_stream.set_wire_trace(on); }
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private:
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void set_stage(Stage s);
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void on_phase(uint8_t phase);
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bool on_packet(uint8_t header, const uint8_t *body, uint32_t len);
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void send_login();
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bool send_client_version();
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EntityStore m_world;
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ClassicStream m_stream;
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ClassicParser m_parser;
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Stage m_stage = Stage::Offline;
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std::string m_last_error;
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std::string m_id, m_pw;
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uint32_t m_now = 0;
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uint32_t m_loading_since = 0;
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uint32_t m_entergame_delay = 1500;
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bool m_entergame_sent = false;
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bool m_login_sent = false;
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bool m_version_sent = false;
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};
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} // namespace mtnet::classic
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