Godot 4 源码分析 - 命令行参数
粗看Godot 4的源码，稍微调试一下，发现一大堆的命令行参数。在widechar_main中
Error err = Main::setup(argv_utf8[0], argc - 1, &argv_utf8[1]); Main::setup中，各命令行参数加入到List
命令行参考
常规选项 - 显示命令行选项列表
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显示命令行选项列表。 |
if (I->get() == "-h" || I->get() == "--help" || I->get() == "/?") { // display help
show_help = true;
exit_code = ERR_HELP; // Hack to force an early exit in `main()` with a success code.
goto error;
}然后调用print_help
void Main::print_help(const char *p_binary) {
print_line(String(VERSION_NAME) + " v" + get_full_version_string() + " - " + String(VERSION_WEBSITE));
OS::get_singleton()->print("Free and open source software under the terms of the MIT license.\n");
OS::get_singleton()->print("(c) 2014-present Godot Engine contributors.\n");
OS::get_singleton()->print("(c) 2007-2014 Juan Linietsky, Ariel Manzur.\n");
OS::get_singleton()->print("\n");
OS::get_singleton()->print("Usage: %s [options] [path to scene or 'project.godot' file]\n", p_binary);
OS::get_singleton()->print("\n");
OS::get_singleton()->print("General options:\n");
OS::get_singleton()->print(" -h, --help Display this help message.\n");
OS::get_singleton()->print(" --version Display the version string.\n");
OS::get_singleton()->print(" -v, --verbose Use verbose stdout mode.\n");
OS::get_singleton()->print(" -q, --quiet Quiet mode, silences stdout messages. Errors are still displayed.\n");
OS::get_singleton()->print("\n");
OS::get_singleton()->print("Run options:\n");
OS::get_singleton()->print(" --, ++ Separator for user-provided arguments. Following arguments are not used by the engine, but can be read from `OS.get_cmdline_user_args()`.\n");
#ifdef TOOLS_ENABLED
OS::get_singleton()->print(" -e, --editor Start the editor instead of running the scene.\n");
OS::get_singleton()->print(" -p, --project-manager Start the project manager, even if a project is auto-detected.\n");
OS::get_singleton()->print(" --debug-server Start the editor debug server (://[:], e.g. tcp://127.0.0.1:6007)\n");
#endif
OS::get_singleton()->print(" --quit Quit after the first iteration.\n");
OS::get_singleton()->print(" -l, --language Use a specific locale ( being a two-letter code).\n");
OS::get_singleton()->print(" --path Path to a project ( must contain a 'project.godot' file).\n");
OS::get_singleton()->print(" -u, --upwards Scan folders upwards for project.godot file.\n");
OS::get_singleton()->print(" --main-pack Path to a pack (.pck) file to load.\n");
OS::get_singleton()->print(" --render-thread Render thread mode ['unsafe', 'safe', 'separate'].\n");
OS::get_singleton()->print(" --remote-fs Remote filesystem ([:] address).\n");
OS::get_singleton()->print(" --remote-fs-password Password for remote filesystem.\n");
OS::get_singleton()->print(" --audio-driver Audio driver [");
for (int i = 0; i < AudioDriverManager::get_driver_count(); i++) {
if (i > 0) {
OS::get_singleton()->print(", ");
}
OS::get_singleton()->print("'%s'", AudioDriverManager::get_driver(i)->get_name());
}
OS::get_singleton()->print("].\n");
OS::get_singleton()->print(" --display-driver Display driver (and rendering driver) [");
for (int i = 0; i < DisplayServer::get_create_function_count(); i++) {
if (i > 0) {
OS::get_singleton()->print(", ");
}
OS::get_singleton()->print("'%s' (", DisplayServer::get_create_function_name(i));
Vector rd = DisplayServer::get_create_function_rendering_drivers(i);
for (int j = 0; j < rd.size(); j++) {
if (j > 0) {
OS::get_singleton()->print(", ");
}
OS::get_singleton()->print("'%s'", rd[j].utf8().get_data());
}
OS::get_singleton()->print(")");
}
OS::get_singleton()->print("].\n");
OS::get_singleton()->print(" --rendering-method Renderer name. Requires driver support.\n");
OS::get_singleton()->print(" --rendering-driver Rendering driver (depends on display driver).\n");
OS::get_singleton()->print(" --gpu-index Use a specific GPU (run with --verbose to get available device list).\n");
OS::get_singleton()->print(" --text-driver Text driver (Fonts, BiDi, shaping).\n");
OS::get_singleton()->print(" --tablet-driver Pen tablet input driver.\n");
OS::get_singleton()->print(" --headless Enable headless mode (--display-driver headless --audio-driver Dummy). Useful for servers and with --script.\n");
OS::get_singleton()->print(" --write-movie Writes a video to the specified path (usually with .avi or .png extension).\n");
OS::get_singleton()->print(" --fixed-fps is forced when enabled, but it can be used to change movie FPS.\n");
OS::get_singleton()->print(" --disable-vsync can speed up movie writing but makes interaction more difficult.\n");
OS::get_singleton()->print("\n");
OS::get_singleton()->print("Display options:\n");
OS::get_singleton()->print(" -f, --fullscreen Request fullscreen mode.\n");
OS::get_singleton()->print(" -m, --maximized Request a maximized window.\n");
OS::get_singleton()->print(" -w, --windowed Request windowed mode.\n");
OS::get_singleton()->print(" -t, --always-on-top Request an always-on-top window.\n");
OS::get_singleton()->print(" --resolution x Request window resolution.\n");
OS::get_singleton()->print(" --position , Request window position (if set, screen argument is ignored).\n");
OS::get_singleton()->print(" --screen Request window screen.\n");
OS::get_singleton()->print(" --single-window Use a single window (no separate subwindows).\n");
OS::get_singleton()->print(" --xr-mode Select XR (Extended Reality) mode ['default', 'off', 'on'].\n");
OS::get_singleton()->print("\n");
OS::get_singleton()->print("Debug options:\n");
OS::get_singleton()->print(" -d, --debug Debug (local stdout debugger).\n");
OS::get_singleton()->print(" -b, --breakpoints Breakpoint list as source::line comma-separated pairs, no spaces (use %%20 instead).\n");
OS::get_singleton()->print(" --profiling Enable profiling in the script debugger.\n");
OS::get_singleton()->print(" --gpu-profile Show a GPU profile of the tasks that took the most time during frame rendering.\n");
OS::get_singleton()->print(" --gpu-validation Enable graphics API validation layers for debugging.\n");
#if DEBUG_ENABLED
OS::get_singleton()->print(" --gpu-abort Abort on graphics API usage errors (usually validation layer errors). May help see the problem if your system freezes.\n");
#endif
OS::get_singleton()->print(" --remote-debug Remote debug (://[:], e.g. tcp://127.0.0.1:6007).\n");
#if defined(DEBUG_ENABLED)
OS::get_singleton()->print(" --debug-collisions Show collision shapes when running the scene.\n");
OS::get_singleton()->print(" --debug-paths Show path lines when running the scene.\n");
OS::get_singleton()->print(" --debug-navigation Show navigation polygons when running the scene.\n");
OS::get_singleton()->print(" --debug-stringnames Print all StringName allocations to stdout when the engine quits.\n");
#endif
OS::get_singleton()->print(" --frame-delay Simulate high CPU load (delay each frame by milliseconds).\n");
OS::get_singleton()->print(" --time-scale Force time scale (higher values are faster, 1.0 is normal speed).\n");
OS::get_singleton()->print(" --disable-vsync Forces disabling of vertical synchronization, even if enabled in the project settings. Does not override driver-level V-Sync enforcement.\n");
OS::get_singleton()->print(" --disable-render-loop Disable render loop so rendering only occurs when called explicitly from script.\n");
OS::get_singleton()->print(" --disable-crash-handler Disable crash handler when supported by the platform code.\n");
OS::get_singleton()->print(" --fixed-fps Force a fixed number of frames per second. This setting disables real-time synchronization.\n");
OS::get_singleton()->print(" --print-fps Print the frames per second to the stdout.\n");
OS::get_singleton()->print("\n");
OS::get_singleton()->print("Standalone tools:\n");
OS::get_singleton()->print(" -s, --script