243 lines
8.6 KiB
C++
243 lines
8.6 KiB
C++
#include "game/options.hpp"
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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 <ranges>
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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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#include "utils/utils.hpp" // Para stringToBool, boolToString, safeStoi
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namespace Options {
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// Declaración de funciones internas
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auto setOptions(const std::string& var, const std::string& value) -> bool;
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auto trimLine(const std::string& line) -> std::string;
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auto isCommentOrEmpty(const std::string& line) -> bool;
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auto processConfigLine(const std::string& line) -> bool;
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auto readConfigFile(const std::string& file_path) -> bool;
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// Crea e inicializa las opciones del programa
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void init() {
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#ifdef _DEBUG
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console = true;
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#else
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console = false;
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#endif
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}
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// Elimina espacios en blanco al inicio y final de una línea
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auto trimLine(const std::string& line) -> std::string {
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auto start = std::ranges::find_if(line, [](int ch) { return !std::isspace(ch); });
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auto end = std::ranges::find_if(std::ranges::reverse_view(line), [](int ch) { return !std::isspace(ch); }).base();
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return {start, end};
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}
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// Verifica si una línea es comentario o está vacía
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auto isCommentOrEmpty(const std::string& line) -> bool {
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return line.empty() || line[0] == '#';
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}
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// Procesa una línea de configuración individual
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auto processConfigLine(const std::string& line) -> bool {
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std::istringstream iss(line);
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std::string key;
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std::string value;
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if (iss >> key >> value) {
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if (!setOptions(key, value)) {
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if (console) {
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std::cout << "Warning: file config.txt\n";
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std::cout << "unknown parameter " << key << '\n';
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}
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return false;
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}
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}
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return true;
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}
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// Lee y procesa el fichero de configuración
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auto readConfigFile(const std::string& file_path) -> bool {
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std::ifstream file(file_path);
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if (!file.good()) {
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return false;
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}
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bool success = true;
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if (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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line = trimLine(line);
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if (isCommentOrEmpty(line)) {
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continue;
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}
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if (!processConfigLine(line)) {
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success = false;
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}
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}
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if (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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return success;
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}
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// Carga las opciones desde un fichero
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auto loadFromFile(const std::string& file_path) -> bool {
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// Versión actual del fichero
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const std::string CONFIG_VERSION = version;
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version = "";
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// Intenta leer el fichero
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bool success = readConfigFile(file_path);
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// Si no se pudo leer, crea el fichero con valores por defecto
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if (!success) {
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saveToFile(file_path);
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success = true;
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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 (CONFIG_VERSION != version) {
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init();
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saveToFile(file_path);
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if (console) {
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std::cout << "Wrong config file: initializing \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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auto saveToFile(const std::string& file_path) -> bool {
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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 (console) {
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std::cerr << "Error: Unable to open file " << file_path << " for writing." << '\n';
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}
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return false;
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}
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if (console) {
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std::cout << file_path << " open for writing" << '\n';
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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 " << 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>(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 " << 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 " << video.fullscreen << "\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>(video.filter) << "\n\n";
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file << "# Shaders: 1 = Activado, 0 = Desactivado\n";
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file << "video.shaders " << boolToString(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(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(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(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(video.border.enabled) << "\n\n";
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file << "# Ancho del borde\n";
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file << "video.border.width " << video.border.width << "\n\n";
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file << "# Alto del borde\n";
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file << "video.border.height " << video.border.height << "\n\n";
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file << "# Paleta\n";
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file << "video.palette " << 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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auto setOptions(const std::string& var, const std::string& value) -> bool {
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static const std::unordered_map<std::string, std::function<void(const std::string&)>> OPTION_HANDLERS = {
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{"version", [](const std::string& v) { version = v; }},
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{"keys", [](const std::string& v) {
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int val = safeStoi(v, static_cast<int>(GameDefaults::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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keys = static_cast<ControlScheme>(val);
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} else {
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keys = GameDefaults::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, GameDefaults::WINDOW_ZOOM);
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if (val > 0) {
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window.zoom = val;
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} else {
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window.zoom = GameDefaults::WINDOW_ZOOM;
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}
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}},
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{"video.mode", [](const std::string& v) { video.fullscreen = stringToBool(v); }},
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{"video.filter", [](const std::string& v) {
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int val = safeStoi(v, static_cast<int>(GameDefaults::VIDEO_FILTER));
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if (val == static_cast<int>(ScreenFilter::NEAREST) || val == static_cast<int>(ScreenFilter::LINEAR)) {
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video.filter = static_cast<ScreenFilter>(val);
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} else {
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video.filter = GameDefaults::VIDEO_FILTER;
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}
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}},
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{"video.shaders", [](const std::string& v) { video.shaders = stringToBool(v); }},
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{"video.vertical_sync", [](const std::string& v) { video.vertical_sync = stringToBool(v); }},
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{"video.integer_scale", [](const std::string& v) { video.integer_scale = stringToBool(v); }},
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{"video.keep_aspect", [](const std::string& v) { video.keep_aspect = stringToBool(v); }},
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{"video.border.enabled", [](const std::string& v) { video.border.enabled = stringToBool(v); }},
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{"video.border.width", [](const std::string& v) {
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int val = safeStoi(v, GameDefaults::BORDER_WIDTH);
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if (val > 0) {
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video.border.width = val;
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} else {
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video.border.width = GameDefaults::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, GameDefaults::BORDER_HEIGHT);
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if (val > 0) {
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video.border.height = val;
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} else {
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video.border.height = GameDefaults::BORDER_HEIGHT;
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}
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}},
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{"video.palette", [](const std::string& v) {
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video.palette = v;
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}}};
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auto it = OPTION_HANDLERS.find(var);
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if (it != OPTION_HANDLERS.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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} |