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implement Ep3 card trade window

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This commit is contained in:
Martin Michelsen
2022-10-02 19:00:13 -07:00
parent 44e28fd906
commit 6afc029152
6 changed files with 195 additions and 43 deletions
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src/ReceiveCommands.cc
+109 -1
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@@ -2682,6 +2682,114 @@ static void on_trade_error(shared_ptr<ServerState> s, shared_ptr<Client> c,
static void on_card_trade(shared_ptr<ServerState> s, shared_ptr<Client> c,
uint16_t, uint32_t flag, const string& data) { // EE
if (!(c->flags & Client::Flag::IS_EPISODE_3)) {
throw runtime_error("non-Ep3 client sent card trade command");
}
auto l = s->find_lobby(c->lobby_id);
if (!(l->flags & Lobby::Flag::EPISODE_3_ONLY)) {
throw runtime_error("client sent card trade command outside of Ep3 lobby");
}
if (!l->is_game()) {
throw runtime_error("client sent card trade command in non-game lobby");
}
if (flag == 0xD0) {
auto& cmd = check_size_t<SC_TradeCards_GC_Ep3_EE_FlagD0_FlagD3>(data);
if (c->game_data.pending_card_trade) {
throw runtime_error("player started a card trade when one is already pending");
}
if (cmd.entry_count > 4) {
throw runtime_error("invalid entry count in card trade command");
}
auto target_c = l->clients.at(cmd.target_client_id);
if (!target_c) {
throw runtime_error("card trade command sent to missing player");
}
if (!(target_c->flags & Client::Flag::IS_EPISODE_3)) {
throw runtime_error("card trade target is not Episode 3");
}
c->game_data.pending_card_trade.reset(new PendingCardTrade());
c->game_data.pending_card_trade->other_client_id = cmd.target_client_id;
for (size_t x = 0; x < cmd.entry_count; x++) {
c->game_data.pending_card_trade->card_to_count.emplace_back(
make_pair(cmd.entries[x].card_type, cmd.entries[x].count));
}
// If the other player has a pending trade as well, assume this is the
// second half of the trade sequence, and send an EE D1 to both clients. If
// the other player does not have a pending trade, assume this is the first
// half of the trade sequence, and send an EE D1 only to the target player
// (to request its EE D0 command).
// See the description of the D0 command in CommandFormats.hh for more
// information on how this sequence is supposed to work. (The EE D0 command
// is analogous to Episodes 1&2's D0 command.)
S_AdvanceCardTradeState_GC_Ep3_EE_FlagD1 resp = {0};
send_command_t(target_c, 0xEE, 0xD1, resp);
if (target_c->game_data.pending_card_trade) {
send_command_t(c, 0xEE, 0xD1, resp);
}
} else if (flag == 0xD2) {
check_size_v(data.size(), 0);
if (!c->game_data.pending_card_trade) {
throw runtime_error("player executed a card trade with none pending");
}
auto target_c = l->clients.at(c->game_data.pending_card_trade->other_client_id);
if (!target_c) {
throw runtime_error("card trade target player is missing");
}
if (!target_c->game_data.pending_card_trade) {
throw runtime_error("player executed a card trade with no other side pending");
}
c->game_data.pending_card_trade->confirmed = true;
if (target_c->game_data.pending_card_trade->confirmed) {
send_execute_card_trade(c, target_c->game_data.pending_card_trade->card_to_count);
send_execute_card_trade(target_c, c->game_data.pending_card_trade->card_to_count);
S_CardTradeComplete_GC_Ep3_EE_FlagD4 resp = {1};
send_command_t(c, 0xEE, 0xD4, resp);
send_command_t(target_c, 0xEE, 0xD4, resp);
c->game_data.pending_card_trade.reset();
target_c->game_data.pending_card_trade.reset();
}
} else if (flag == 0xD4) {
check_size_v(data.size(), 0);
// See the D4 handler for why this check exists (and why it doesn't throw)
if (!c->game_data.pending_card_trade) {
return;
}
uint8_t other_client_id = c->game_data.pending_card_trade->other_client_id;
c->game_data.pending_card_trade.reset();
S_CardTradeComplete_GC_Ep3_EE_FlagD4 resp = {0};
send_command_t(c, 0xEE, 0xD4, resp);
// Cancel the other side of the trade too, if it's open
auto target_c = l->clients.at(other_client_id);
if (!target_c) {
return;
}
if (!target_c->game_data.pending_card_trade) {
return;
}
target_c->game_data.pending_card_trade.reset();
send_command_t(target_c, 0xEE, 0xD4, resp);
} else {
throw runtime_error("invalid card trade operation");
}
}
static void on_team_command_bb(shared_ptr<ServerState>, shared_ptr<Client> c,
uint16_t command, uint32_t, const string&) { // EA
@@ -3111,7 +3219,7 @@ static on_command_t handlers[0x100][6] = {
/* EB */ {nullptr, nullptr, nullptr, nullptr, nullptr, on_stream_file_request_bb, }, /* EB */
/* EC */ {nullptr, nullptr, nullptr, on_create_game_dc_v3, nullptr, on_leave_char_select_bb, }, /* EC */
/* ED */ {nullptr, nullptr, nullptr, nullptr, nullptr, on_change_account_data_bb, }, /* ED */
/* EE */ {nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, }, /* EE */
/* EE */ {nullptr, nullptr, nullptr, on_card_trade, nullptr, nullptr, }, /* EE */
/* EF */ {nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, }, /* EF */
/* F0 */ {nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, }, /* F0 */
/* F1 */ {nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, }, /* F1 */