C++ saved_game::get_starting_pos方法代码示例

// To remove radundant informaion in the clientside internal programmflow
// I want to remove these values from mp_settings so i need to readd them here
static void add_multiplayer_classification(config& multiplayer, saved_game& state)
{
	multiplayer["mp_scenario"] = state.get_scenario_id();
	multiplayer["mp_scenario_name"] = state.get_starting_pos()["name"];
	multiplayer["difficulty_define"] = state.classification().difficulty;
	multiplayer["mp_campaign"] = state.classification().campaign;
}

config initial_level_config(saved_game& state)
{
	const mp_game_settings& params = state.mp_settings();
	//Also impliers state.expand_scenario()
	//We need to call this before expand_mp_events/options oterwise they might be overwritten
	state.expand_random_scenario();
	state.expand_mp_events();
	state.expand_mp_options();

	config& scenario = state.get_starting_pos();
	if(!state.mp_settings().saved_game)
	{
		state.set_random_seed();
		
		if (params.random_start_time)
		{
			if (!tod_manager::is_start_ToD(scenario["random_start_time"]))
			{
				scenario["random_start_time"] = true;
			}
		}
		else
		{
			scenario["random_start_time"] = false;
		}

		scenario["experience_modifier"] = params.xp_modifier;
	}

	if (scenario["objectives"].empty()) {
		scenario["objectives"] = "<big>" + t_string(N_("Victory:"), "wesnoth") +
			"</big>\n<span foreground=\"#00ff00\">&#8226; " +
			t_string(N_("Defeat enemy leader(s)"), "wesnoth") + "</span>";
	}

	config level = state.to_config();
	add_multiplayer_classification(level.child_or_add("multiplayer"), state);

	std::string era = params.mp_era;
	//[multiplayer] mp_era= should be persistent over saves.

	//[era], [modification]s are toplevel tags here, they are not part of the saved_game and only used during mp_connect/mp_wait
	// Initialize the list of sides available for the current era.
	// We also need this no not get a segfault in mp_connect for ai configuration
	const config &era_cfg =
		game_config_manager::get()->game_config().find_child("era", "id", era);
	if (!era_cfg) {
		if (!params.saved_game)
		{
			utils::string_map i18n_symbols;
			i18n_symbols["era"] = era;
			throw config::error(vgettext("Cannot find era $era", i18n_symbols));
		}
		// FIXME: @todo We should tell user about missing era but still load game
		WRN_CF << "Missing era in MP load game " << era << std::endl;
		//Otherwise we get an error when qwhen we try to add ai algirithms in moultiplayer_connect
		level.add_child("era");
	}
	else
	{
		/*config& cfg = */level.add_child("era", era_cfg);

		const config& custom_side = game_config_manager::get()->
			game_config().find_child("multiplayer_side", "id", "Custom");
		level.child("era").add_child_at("multiplayer_side", custom_side, 0);

	}
	// Add modifications, needed for ai aglorithms which are applied in mp_connect

	const std::vector<std::string>& mods = params.active_mods;
	for (unsigned i = 0; i < mods.size(); i++) {
		/*config& cfg = */level.add_child("modification",
			game_config_manager::get()->
				game_config().find_child("modification", "id", mods[i]));
	}

	// This will force connecting clients to be using the same version number as us.
	level["version"] = game_config::version;
	return level;
}

void start_local_game_commandline(const config& game_config, saved_game& state, const commandline_options& cmdline_opts)
{
	DBG_MP << "starting local MP game from commandline" << std::endl;

	// The setup is done equivalently to lobby MP games using as much of existing
	// code as possible.  This means that some things are set up that are not
	// needed in commandline mode, but they are required by the functions called.
	preferences::set_message_private(false);

	DBG_MP << "entering create mode" << std::endl;

	// Set the default parameters
	state.clear(); // This creates these parameters with default values defined in mp_game_settings.cpp
	mp_game_settings& parameters = state.mp_settings();

	// Hardcoded default values
	parameters.mp_era = "era_default";
	parameters.name = "multiplayer_The_Freelands";

	// Default values for which at getter function exists
	parameters.num_turns = settings::get_turns("");
	parameters.village_gold = settings::get_village_gold("");
	parameters.village_support = settings::get_village_support("");
	parameters.xp_modifier = settings::get_xp_modifier("");

	// Do not use map settings if --ignore-map-settings commandline option is set
	if(cmdline_opts.multiplayer_ignore_map_settings) {
		DBG_MP << "ignoring map settings" << std::endl;
		parameters.use_map_settings = false;
	} else {
		parameters.use_map_settings = true;
	}

	// None of the other parameters need to be set, as their creation values above are good enough for CL mode.
	// In particular, we do not want to use the preferences values.

	state.classification().campaign_type = game_classification::CAMPAIGN_TYPE::MULTIPLAYER;

	// [era] define.
	if(cmdline_opts.multiplayer_era) {
		parameters.mp_era = *cmdline_opts.multiplayer_era;
	}

	if(const config& cfg_era = game_config.find_child("era", "id", parameters.mp_era)) {
		state.classification().era_define = cfg_era["define"].str();
	} else {
		std::cerr << "Could not find era '" << parameters.mp_era << "'\n";
		return;
	}

	// [multiplayer] define.
	if(cmdline_opts.multiplayer_scenario) {
		parameters.name = *cmdline_opts.multiplayer_scenario;
	}

	if(const config& cfg_multiplayer = game_config.find_child("multiplayer", "id", parameters.name)) {
		state.classification().scenario_define = cfg_multiplayer["define"].str();
	} else {
		std::cerr << "Could not find [multiplayer] '" << parameters.name << "'\n";
		return;
	}

	game_config_manager::get()->load_game_config_for_game(state.classification());
	state.set_carryover_sides_start(
		config {"next_scenario", parameters.name}
	);

	state.expand_random_scenario();
	state.expand_mp_events();
	state.expand_mp_options();

	// Should number of turns be determined from scenario data?
	if(parameters.use_map_settings && state.get_starting_pos()["turns"]) {
		DBG_MP << "setting turns from scenario data: " << state.get_starting_pos()["turns"] << std::endl;
		parameters.num_turns = state.get_starting_pos()["turns"];
	}

	DBG_MP << "entering connect mode" << std::endl;

	statistics::fresh_stats();

	{
		ng::connect_engine_ptr connect_engine(new ng::connect_engine(state, true, nullptr));

		// Update the parameters to reflect game start conditions
		connect_engine->start_game_commandline(cmdline_opts);
	}

	if(resources::recorder && cmdline_opts.multiplayer_label) {
		std::string label = *cmdline_opts.multiplayer_label;
		resources::recorder->add_log_data("ai_log","ai_label",label);
	}

	unsigned int repeat = (cmdline_opts.multiplayer_repeat) ? *cmdline_opts.multiplayer_repeat : 1;
	for(unsigned int i = 0; i < repeat; i++){
		saved_game state_copy(state);
		campaign_controller controller(state_copy, game_config, game_config_manager::get()->terrain_types());
		controller.play_game();
	}
}