227 lines
8.8 KiB
C++
227 lines
8.8 KiB
C++
#include "options.h"
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#include <SDL3/SDL.h>
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#include <algorithm> // Para find_if
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#include <cctype> // Para isspace
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#include <fstream> // Para basic_ostream, operator<<, basic_ofstream
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#include <functional> // Para function
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#include <iostream> // Para cout, cerr
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#include <sstream> // Para basic_istringstream
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#include <string> // Para char_traits, string, operator<<, hash
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#include <unordered_map> // Para unordered_map, operator==, _Node_const_i...
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#include <utility> // Para pair
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// Variables
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Options options;
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bool setOptions(const std::string& var, const std::string& value);
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// Crea e inicializa las opciones del programa
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void initOptions() {
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options = Options();
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#ifdef DEBUG
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options.section = SectionState(Section::ENDING2, Subsection::LOGO_TO_INTRO);
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options.console = true;
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#else
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options.section = SectionState(Section::LOGO, Subsection::LOGO_TO_INTRO);
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options.console = false;
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#endif
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}
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// Carga las opciones desde un fichero
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bool loadOptionsFromFile(const std::string& file_path) {
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// Indicador de éxito en la carga
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bool success = true;
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// Versión actual del fichero
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const std::string configVersion = options.version;
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options.version = "";
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// Variables para manejar el fichero
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std::ifstream file(file_path);
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// Si el fichero se puede abrir
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if (file.good()) {
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// Procesa el fichero línea a línea
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if (options.console) {
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std::cout << "Reading file config.txt\n";
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}
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std::string line;
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while (std::getline(file, line)) {
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// Elimina espacios en blanco iniciales y finales
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line = std::string(std::find_if(line.begin(), line.end(), [](int ch) { return !std::isspace(ch); }),
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line.end());
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line.erase(std::find_if(line.rbegin(), line.rend(), [](int ch) { return !std::isspace(ch); })
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.base(),
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line.end());
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// Ignora líneas vacías o comentarios
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if (line.empty() || line[0] == '#') {
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continue;
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}
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// Usa un stringstream para dividir la línea en dos partes
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std::istringstream iss(line);
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std::string key, value;
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if (iss >> key >> value) {
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if (!setOptions(key, value)) {
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if (options.console) {
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std::cout << "Warning: file config.txt\n";
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std::cout << "unknown parameter " << key << std::endl;
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}
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success = false;
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}
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}
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}
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// Cierra el fichero
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if (options.console) {
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std::cout << "Closing file config.txt\n\n";
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}
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file.close();
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} else {
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// Crea el fichero con los valores por defecto
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saveOptionsToFile(file_path);
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}
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// Si la versión de fichero no coincide, crea un fichero nuevo con los valores por defecto
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if (configVersion != options.version) {
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initOptions();
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saveOptionsToFile(file_path);
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if (options.console) {
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std::cout << "Wrong config file: initializing options.\n\n";
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}
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}
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return success;
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}
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// Guarda las opciones en un fichero
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bool saveOptionsToFile(const std::string& file_path) {
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// Crea y abre el fichero de texto
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std::ofstream file(file_path);
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bool success = file.is_open(); // Verifica si el archivo se abrió correctamente
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if (!success) // Si no se pudo abrir el archivo, muestra un mensaje de error y devuelve false
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{
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if (options.console) {
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std::cerr << "Error: Unable to open file " << file_path << " for writing." << std::endl;
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}
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return false;
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}
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if (options.console) {
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std::cout << file_path << " open for writing" << std::endl;
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}
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// Escribe en el fichero
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file << "# Versión de la configuración\n";
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file << "version " << options.version << "\n";
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file << "\n## CONTROL\n";
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file << "# Esquema de control: 0 = Cursores, 1 = OPQ, 2 = WAD\n";
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file << "keys " << static_cast<int>(options.keys) << "\n";
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file << "\n## WINDOW\n";
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file << "# Zoom de la ventana: 1 = Normal, 2 = Doble, 3 = Triple, ...\n";
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file << "window.zoom " << options.window.zoom << "\n";
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file << "\n## VIDEO\n";
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file << "# Modo de video: 0 = Ventana, 1 = Pantalla completa, 2 = Pantalla completa (escritorio)\n";
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file << "video.mode " << options.video.mode << "\n\n";
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file << "# Filtro de pantalla: 0 = Nearest, 1 = Linear\n";
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file << "video.filter " << static_cast<int>(options.video.filter) << "\n\n";
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file << "# Shaders: 1 = Activado, 0 = Desactivado\n";
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file << "video.shaders " << boolToString(options.video.shaders) << "\n\n";
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file << "# Sincronización vertical: 1 = Activado, 0 = Desactivado\n";
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file << "video.vertical_sync " << boolToString(options.video.vertical_sync) << "\n\n";
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file << "# Escalado entero: 1 = Activado, 0 = Desactivado\n";
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file << "video.integer_scale " << boolToString(options.video.integer_scale) << "\n\n";
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file << "# Mantener aspecto: 1 = Activado, 0 = Desactivado\n";
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file << "video.keep_aspect " << boolToString(options.video.keep_aspect) << "\n\n";
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file << "# Borde: 1 = Activado, 0 = Desactivado\n";
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file << "video.border.enabled " << boolToString(options.video.border.enabled) << "\n\n";
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file << "# Ancho del borde\n";
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file << "video.border.width " << options.video.border.width << "\n\n";
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file << "# Alto del borde\n";
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file << "video.border.height " << options.video.border.height << "\n\n";
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file << "# Paleta\n";
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file << "video.palette " << options.video.palette << "\n";
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// Cierra el fichero
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file.close();
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return success;
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}
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bool setOptions(const std::string& var, const std::string& value) {
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static const std::unordered_map<std::string, std::function<void(const std::string&)>> optionHandlers = {
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{"version", [](const std::string& v) { options.version = v; }},
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{"keys", [](const std::string& v) {
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int val = safeStoi(v, static_cast<int>(DEFAULT_CONTROL_SCHEME));
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if (val == static_cast<int>(ControlScheme::CURSOR) || val == static_cast<int>(ControlScheme::OPQA) || val == static_cast<int>(ControlScheme::WASD)) {
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options.keys = static_cast<ControlScheme>(val);
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} else {
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options.keys = DEFAULT_CONTROL_SCHEME;
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}
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}},
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{"window.zoom", [](const std::string& v) {
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int val = safeStoi(v, DEFAULT_WINDOW_ZOOM);
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if (val > 0) {
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options.window.zoom = val;
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} else {
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options.window.zoom = DEFAULT_WINDOW_ZOOM;
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}
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}},
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{"video.mode", [](const std::string& v) {
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int val = safeStoi(v, 0);
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if (val == 0 || val == SDL_WINDOW_FULLSCREEN_DESKTOP) {
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options.video.mode = val;
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} else {
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options.video.mode = 0;
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}
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}},
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{"video.filter", [](const std::string& v) {
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int val = safeStoi(v, static_cast<int>(DEFAULT_VIDEO_FILTER));
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if (val == static_cast<int>(ScreenFilter::NEAREST) || val == static_cast<int>(ScreenFilter::LINEAR)) {
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options.video.filter = static_cast<ScreenFilter>(val);
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} else {
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options.video.filter = DEFAULT_VIDEO_FILTER;
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}
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}},
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{"video.shaders", [](const std::string& v) { options.video.shaders = stringToBool(v); }},
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{"video.vertical_sync", [](const std::string& v) { options.video.vertical_sync = stringToBool(v); }},
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{"video.integer_scale", [](const std::string& v) { options.video.integer_scale = stringToBool(v); }},
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{"video.keep_aspect", [](const std::string& v) { options.video.keep_aspect = stringToBool(v); }},
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{"video.border.enabled", [](const std::string& v) { options.video.border.enabled = stringToBool(v); }},
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{"video.border.width", [](const std::string& v) {
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int val = safeStoi(v, DEFAULT_BORDER_WIDTH);
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if (val > 0) {
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options.video.border.width = val;
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} else {
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options.video.border.width = DEFAULT_BORDER_WIDTH;
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}
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}},
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{"video.border.height", [](const std::string& v) {
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int val = safeStoi(v, DEFAULT_BORDER_HEIGHT);
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if (val > 0) {
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options.video.border.height = val;
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} else {
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options.video.border.height = DEFAULT_BORDER_HEIGHT;
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}
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}},
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{"video.palette", [](const std::string& v) {
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options.video.palette = v;
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}}};
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auto it = optionHandlers.find(var);
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if (it != optionHandlers.end()) {
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it->second(value);
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return true;
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}
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return false;
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}
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