Operating System functions. OS wraps the most common functionality to communicate with the host operating system, such as the clipboard, video driver, date and time, timers, environment variables, execution of binaries, command line, etc.
Creates a new process that runs independently of Godot. It will not terminate if Godot terminates. The file specified in [code]path[/code] must exist and be executable. Platform path resolution will be used. The [code]arguments[/code] are used in the given order and separated by a space.
If the process creation succeeds, the method will return the new process ID, which you can use to monitor the process (and potentially terminate it with [method kill]). If the process creation fails, the method will return [code]-1[/code].
For example, running another instance of the project:
[codeblocks]
[gdscript]
var pid = OS.create_process(OS.get_executable_path(), [])
[/gdscript]
[csharp]
var pid = OS.CreateProcess(OS.GetExecutablePath(), new string[] {});
[/csharp]
[/codeblocks]
See [method execute] if you wish to run an external command and retrieve the results.
[b]Note:[/b] This method is implemented on Android, iOS, Linux, macOS and Windows.
Delay execution of the current thread by [code]msec[/code] milliseconds. [code]msec[/code] must be greater than or equal to [code]0[/code]. Otherwise, [method delay_msec] will do nothing and will print an error message.
Delay execution of the current thread by [code]usec[/code] microseconds. [code]usec[/code] must be greater than or equal to [code]0[/code]. Otherwise, [method delay_usec] will do nothing and will print an error message.
Executes a command. The file specified in [code]path[/code] must exist and be executable. Platform path resolution will be used. The [code]arguments[/code] are used in the given order and separated by a space. If an [code]output[/code] [Array] is provided, the complete shell output of the process will be appended as a single [String] element in [code]output[/code]. If [code]read_stderr[/code] is [code]true[/code], the output to the standard error stream will be included too.
If the command is successfully executed, the method will return the exit code of the command, or [code]-1[/code] if it fails.
[b]Note:[/b] The Godot thread will pause its execution until the executed command terminates. Use [Thread] to create a separate thread that will not pause the Godot thread, or use [method create_process] to create a completely independent process.
For example, to retrieve a list of the working directory's contents:
Returns the [i]global[/i] cache data directory according to the operating system's standards. On desktop platforms, this path can be overridden by setting the [code]XDG_CACHE_HOME[/code] environment variable before starting the project. See [url=https://docs.godotengine.org/en/latest/tutorials/io/data_paths.html]File paths in Godot projects[/url] in the documentation for more information. See also [method get_config_dir] and [method get_data_dir].
Not to be confused with [method get_user_data_dir], which returns the [i]project-specific[/i] user data path.
Returns the command-line arguments passed to the engine.
Command-line arguments can be written in any form, including both [code]--key value[/code] and [code]--key=value[/code] forms so they can be properly parsed, as long as custom command-line arguments do not conflict with engine arguments.
You can also incorporate environment variables using the [method get_environment] method.
Returns the [i]global[/i] user configuration directory according to the operating system's standards. On desktop platforms, this path can be overridden by setting the [code]XDG_CONFIG_HOME[/code] environment variable before starting the project. See [url=https://docs.godotengine.org/en/latest/tutorials/io/data_paths.html]File paths in Godot projects[/url] in the documentation for more information. See also [method get_cache_dir] and [method get_data_dir].
Not to be confused with [method get_user_data_dir], which returns the [i]project-specific[/i] user data path.
Returns the [i]global[/i] user data directory according to the operating system's standards. On desktop platforms, this path can be overridden by setting the [code]XDG_DATA_HOME[/code] environment variable before starting the project. See [url=https://docs.godotengine.org/en/latest/tutorials/io/data_paths.html]File paths in Godot projects[/url] in the documentation for more information. See also [method get_cache_dir] and [method get_config_dir].
Not to be confused with [method get_user_data_dir], which returns the [i]project-specific[/i] user data path.
Returns the host OS locale as a string of the form [code]language_Script_COUNTRY_VARIANT@extra[/code]. If you want only the language code and not the fully specified locale from the OS, you can use [method get_locale_language].
Returns the host OS locale's 2 or 3-letter [url=https://en.wikipedia.org/wiki/List_of_ISO_639-1_codes]language code[/url] as a string which should be consistent on all platforms. This is equivalent to extracting the [code]language[/code] part of the [method get_locale] string.
This can be used to narrow down fully specified locale strings to only the "common" language code, when you don't need the additional information about country code or variants. For example, for a French Canadian user with [code]fr_CA[/code] locale, this would return [code]fr[/code].
Returns the name of the host OS. Possible values are: [code]"Android"[/code], [code]"iOS"[/code], [code]"HTML5"[/code], [code]"OSX"[/code], [code]"Server"[/code], [code]"Windows"[/code], [code]"UWP"[/code], [code]"X11"[/code].
[b]Note:[/b] Shared storage is implemented on Android and allows to differentiate between app specific and shared directories. Shared directories have additional restrictions on Android.
[b]Note:[/b] This string may change without notice if the user reinstalls/upgrades their operating system or changes their hardware. This means it should generally not be used to encrypt persistent data as the data saved before an unexpected ID change would become inaccessible. The returned string may also be falsified using external programs, so do not rely on the string returned by [method get_unique_id] for security purposes.
On Linux, this is [code]~/.local/share/godot/app_userdata/[project_name][/code], or [code]~/.local/share/[custom_name][/code] if [code]use_custom_user_dir[/code] is set.
On macOS, this is [code]~/Library/Application Support/Godot/app_userdata/[project_name][/code], or [code]~/Library/Application Support/[custom_name][/code] if [code]use_custom_user_dir[/code] is set.
On Windows, this is [code]%APPDATA%\Godot\app_userdata\[project_name][/code], or [code]%APPDATA%\[custom_name][/code] if [code]use_custom_user_dir[/code] is set. [code]%APPDATA%[/code] expands to [code]%USERPROFILE%\AppData\Roaming[/code].
Returns [code]true[/code] if the feature for the given feature tag is supported in the currently running instance, depending on the platform, build, etc. Can be used to check whether you're currently running a debug build, on a certain platform or arch, etc. Refer to the [url=https://docs.godotengine.org/en/latest/getting_started/workflow/export/feature_tags.html]Feature Tags[/url] documentation for more details.
Returns [code]true[/code] if the Godot binary used to run the project is a [i]debug[/i] export template, or when running in the editor.
Returns [code]false[/code] if the Godot binary used to run the project is a [i]release[/i] export template.
To check whether the Godot binary used to run the project is an export template (debug or release), use [code]OS.has_feature("standalone")[/code] instead.
If [code]true[/code], the [code]user://[/code] file system is persistent, so that its state is the same after a player quits and starts the game again. Relevant to the HTML5 platform, where this persistence may be unavailable.
Sets the value of the environment variable [code]variable[/code] to [code]value[/code]. The environment variable will be set for the Godot process and any process executed with [method execute] after running [method set_environment]. The environment variable will [i]not[/i] persist to processes run after the Godot process was terminated.
[b]Note:[/b] Double-check the casing of [code]variable[/code]. Environment variable names are case-sensitive on all platforms except Windows.
Requests the OS to open a resource with the most appropriate program. For example:
- [code]OS.shell_open("C:\\Users\name\Downloads")[/code] on Windows opens the file explorer at the user's Downloads folder.
- [code]OS.shell_open("https://godotengine.org")[/code] opens the default web browser on the official Godot website.
- [code]OS.shell_open("mailto:example@example.com")[/code] opens the default email client with the "To" field set to [code]example@example.com[/code]. See [url=https://blog.escapecreative.com/customizing-mailto-links/]Customizing [code]mailto:[/code] Links[/url] for a list of fields that can be added.
