godot-docs/classes/class_object.rst

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.. _class_Object:

Object
======

**Inherited By:** :ref:`ARVRServer<class_ARVRServer>`, :ref:`AudioServer<class_AudioServer>`, :ref:`CameraServer<class_CameraServer>`, :ref:`ClassDB<class_ClassDB>`, :ref:`EditorFileSystemDirectory<class_EditorFileSystemDirectory>`, :ref:`EditorSelection<class_EditorSelection>`, :ref:`EditorVCSInterface<class_EditorVCSInterface>`, :ref:`Engine<class_Engine>`, :ref:`Geometry<class_Geometry>`, :ref:`GodotSharp<class_GodotSharp>`, :ref:`Input<class_Input>`, :ref:`InputMap<class_InputMap>`, :ref:`IP<class_IP>`, :ref:`JavaClassWrapper<class_JavaClassWrapper>`, :ref:`JavaScript<class_JavaScript>`, :ref:`JNISingleton<class_JNISingleton>`, :ref:`JSON<class_JSON>`, :ref:`JSONRPC<class_JSONRPC>`, :ref:`MainLoop<class_MainLoop>`, :ref:`Marshalls<class_Marshalls>`, :ref:`Navigation2DServer<class_Navigation2DServer>`, :ref:`NavigationMeshGenerator<class_NavigationMeshGenerator>`, :ref:`NavigationServer<class_NavigationServer>`, :ref:`Node<class_Node>`, :ref:`OS<class_OS>`, :ref:`Performance<class_Performance>`, :ref:`Physics2DDirectBodyState<class_Physics2DDirectBodyState>`, :ref:`Physics2DDirectSpaceState<class_Physics2DDirectSpaceState>`, :ref:`Physics2DServer<class_Physics2DServer>`, :ref:`PhysicsDirectBodyState<class_PhysicsDirectBodyState>`, :ref:`PhysicsDirectSpaceState<class_PhysicsDirectSpaceState>`, :ref:`PhysicsServer<class_PhysicsServer>`, :ref:`ProjectSettings<class_ProjectSettings>`, :ref:`Reference<class_Reference>`, :ref:`ResourceLoader<class_ResourceLoader>`, :ref:`ResourceSaver<class_ResourceSaver>`, :ref:`Time<class_Time>`, :ref:`TranslationServer<class_TranslationServer>`, :ref:`TreeItem<class_TreeItem>`, :ref:`UndoRedo<class_UndoRedo>`, :ref:`VisualScriptEditor<class_VisualScriptEditor>`, :ref:`VisualServer<class_VisualServer>`

Base class for all non-built-in types.

.. rst-class:: classref-introduction-group

Description
-----------

Every class which is not a built-in type inherits from this class.

You can construct Objects from scripting languages, using ``Object.new()`` in GDScript, ``new Object`` in C#, or the "Construct Object" node in VisualScript.

Objects do not manage memory. If a class inherits from Object, you will have to delete instances of it manually. To do so, call the :ref:`free<class_Object_method_free>` method from your script or delete the instance from C++.

Some classes that extend Object add memory management. This is the case of :ref:`Reference<class_Reference>`, which counts references and deletes itself automatically when no longer referenced. :ref:`Node<class_Node>`, another fundamental type, deletes all its children when freed from memory.

Objects export properties, which are mainly useful for storage and editing, but not really so much in programming. Properties are exported in :ref:`_get_property_list<class_Object_method__get_property_list>` and handled in :ref:`_get<class_Object_method__get>` and :ref:`_set<class_Object_method__set>`. However, scripting languages and C++ have simpler means to export them.

Property membership can be tested directly in GDScript using ``in``:

::

    var n = Node2D.new()
    print("position" in n) # Prints "True".
    print("other_property" in n) # Prints "False".

The ``in`` operator will evaluate to ``true`` as long as the key exists, even if the value is ``null``.

Objects also receive notifications. Notifications are a simple way to notify the object about different events, so they can all be handled together. See :ref:`_notification<class_Object_method__notification>`.

\ **Note:** Unlike references to a :ref:`Reference<class_Reference>`, references to an Object stored in a variable can become invalid without warning. Therefore, it's recommended to use :ref:`Reference<class_Reference>` for data classes instead of **Object**.

\ **Note:** Due to a bug, you can't create a "plain" Object using ``Object.new()``. Instead, use ``ClassDB.instance("Object")``. This bug only applies to Object itself, not any of its descendents like :ref:`Reference<class_Reference>`.

.. rst-class:: classref-introduction-group

Tutorials
---------

- :doc:`When and how to avoid using nodes for everything <../tutorials/best_practices/node_alternatives>`

- `Advanced exports using _get_property_list() <../tutorials/scripting/gdscript/gdscript_exports.html#advanced-exports>`__

.. rst-class:: classref-reftable-group

Methods
-------

.. table::
   :widths: auto

   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`Variant<class_Variant>`                 | :ref:`_get<class_Object_method__get>` **(** :ref:`String<class_String>` property **)** |virtual|                                                                                                                                        |
   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`Array<class_Array>`                     | :ref:`_get_property_list<class_Object_method__get_property_list>` **(** **)** |virtual|                                                                                                                                                 |
   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | void                                          | :ref:`_init<class_Object_method__init>` **(** **)** |virtual|                                                                                                                                                                           |
   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | void                                          | :ref:`_notification<class_Object_method__notification>` **(** :ref:`int<class_int>` what **)** |virtual|                                                                                                                                |
   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`bool<class_bool>`                       | :ref:`_set<class_Object_method__set>` **(** :ref:`String<class_String>` property, :ref:`Variant<class_Variant>` value **)** |virtual|                                                                                                   |
   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`String<class_String>`                   | :ref:`_to_string<class_Object_method__to_string>` **(** **)** |virtual|                                                                                                                                                                 |
   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | void                                          | :ref:`add_user_signal<class_Object_method_add_user_signal>` **(** :ref:`String<class_String>` signal, :ref:`Array<class_Array>` arguments=[  ] **)**                                                                                    |
   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`Variant<class_Variant>`                 | :ref:`call<class_Object_method_call>` **(** :ref:`String<class_String>` method, ... **)** |vararg|                                                                                                                                      |
   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | void                                          | :ref:`call_deferred<class_Object_method_call_deferred>` **(** :ref:`String<class_String>` method, ... **)** |vararg|                                                                                                                    |
   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`Variant<class_Variant>`                 | :ref:`callv<class_Object_method_callv>` **(** :ref:`String<class_String>` method, :ref:`Array<class_Array>` arg_array **)**                                                                                                             |
   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`bool<class_bool>`                       | :ref:`can_translate_messages<class_Object_method_can_translate_messages>` **(** **)** |const|                                                                                                                                           |
   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`Error<enum_@GlobalScope_Error>`         | :ref:`connect<class_Object_method_connect>` **(** :ref:`String<class_String>` signal, :ref:`Object<class_Object>` target, :ref:`String<class_String>` method, :ref:`Array<class_Array>` binds=[  ], :ref:`int<class_int>` flags=0 **)** |
   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | void                                          | :ref:`disconnect<class_Object_method_disconnect>` **(** :ref:`String<class_String>` signal, :ref:`Object<class_Object>` target, :ref:`String<class_String>` method **)**                                                                |
   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | void                                          | :ref:`emit_signal<class_Object_method_emit_signal>` **(** :ref:`String<class_String>` signal, ... **)** |vararg|                                                                                                                        |
   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | void                                          | :ref:`free<class_Object_method_free>` **(** **)**                                                                                                                                                                                       |
   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`Variant<class_Variant>`                 | :ref:`get<class_Object_method_get>` **(** :ref:`String<class_String>` property **)** |const|                                                                                                                                            |
   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`String<class_String>`                   | :ref:`get_class<class_Object_method_get_class>` **(** **)** |const|                                                                                                                                                                     |
   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`Array<class_Array>`                     | :ref:`get_incoming_connections<class_Object_method_get_incoming_connections>` **(** **)** |const|                                                                                                                                       |
   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`Variant<class_Variant>`                 | :ref:`get_indexed<class_Object_method_get_indexed>` **(** :ref:`NodePath<class_NodePath>` property_path **)** |const|                                                                                                                   |
   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`int<class_int>`                         | :ref:`get_instance_id<class_Object_method_get_instance_id>` **(** **)** |const|                                                                                                                                                         |
   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`Variant<class_Variant>`                 | :ref:`get_meta<class_Object_method_get_meta>` **(** :ref:`String<class_String>` name, :ref:`Variant<class_Variant>` default=null **)** |const|                                                                                          |
   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`PoolStringArray<class_PoolStringArray>` | :ref:`get_meta_list<class_Object_method_get_meta_list>` **(** **)** |const|                                                                                                                                                             |
   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`Array<class_Array>`                     | :ref:`get_method_list<class_Object_method_get_method_list>` **(** **)** |const|                                                                                                                                                         |
   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`Array<class_Array>`                     | :ref:`get_property_list<class_Object_method_get_property_list>` **(** **)** |const|                                                                                                                                                     |
   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`Reference<class_Reference>`             | :ref:`get_script<class_Object_method_get_script>` **(** **)** |const|                                                                                                                                                                   |
   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`Array<class_Array>`                     | :ref:`get_signal_connection_list<class_Object_method_get_signal_connection_list>` **(** :ref:`String<class_String>` signal **)** |const|                                                                                                |
   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`Array<class_Array>`                     | :ref:`get_signal_list<class_Object_method_get_signal_list>` **(** **)** |const|                                                                                                                                                         |
   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`bool<class_bool>`                       | :ref:`has_meta<class_Object_method_has_meta>` **(** :ref:`String<class_String>` name **)** |const|                                                                                                                                      |
   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`bool<class_bool>`                       | :ref:`has_method<class_Object_method_has_method>` **(** :ref:`String<class_String>` method **)** |const|                                                                                                                                |
   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`bool<class_bool>`                       | :ref:`has_signal<class_Object_method_has_signal>` **(** :ref:`String<class_String>` signal **)** |const|                                                                                                                                |
   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`bool<class_bool>`                       | :ref:`has_user_signal<class_Object_method_has_user_signal>` **(** :ref:`String<class_String>` signal **)** |const|                                                                                                                      |
   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`bool<class_bool>`                       | :ref:`is_blocking_signals<class_Object_method_is_blocking_signals>` **(** **)** |const|                                                                                                                                                 |
   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`bool<class_bool>`                       | :ref:`is_class<class_Object_method_is_class>` **(** :ref:`String<class_String>` class **)** |const|                                                                                                                                     |
   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`bool<class_bool>`                       | :ref:`is_connected<class_Object_method_is_connected>` **(** :ref:`String<class_String>` signal, :ref:`Object<class_Object>` target, :ref:`String<class_String>` method **)** |const|                                                    |
   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`bool<class_bool>`                       | :ref:`is_queued_for_deletion<class_Object_method_is_queued_for_deletion>` **(** **)** |const|                                                                                                                                           |
   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | void                                          | :ref:`notification<class_Object_method_notification>` **(** :ref:`int<class_int>` what, :ref:`bool<class_bool>` reversed=false **)**                                                                                                    |
   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | void                                          | :ref:`property_list_changed_notify<class_Object_method_property_list_changed_notify>` **(** **)**                                                                                                                                       |
   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | void                                          | :ref:`remove_meta<class_Object_method_remove_meta>` **(** :ref:`String<class_String>` name **)**                                                                                                                                        |
   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | void                                          | :ref:`set<class_Object_method_set>` **(** :ref:`String<class_String>` property, :ref:`Variant<class_Variant>` value **)**                                                                                                               |
   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | void                                          | :ref:`set_block_signals<class_Object_method_set_block_signals>` **(** :ref:`bool<class_bool>` enable **)**                                                                                                                              |
   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | void                                          | :ref:`set_deferred<class_Object_method_set_deferred>` **(** :ref:`String<class_String>` property, :ref:`Variant<class_Variant>` value **)**                                                                                             |
   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | void                                          | :ref:`set_indexed<class_Object_method_set_indexed>` **(** :ref:`NodePath<class_NodePath>` property_path, :ref:`Variant<class_Variant>` value **)**                                                                                      |
   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | void                                          | :ref:`set_message_translation<class_Object_method_set_message_translation>` **(** :ref:`bool<class_bool>` enable **)**                                                                                                                  |
   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | void                                          | :ref:`set_meta<class_Object_method_set_meta>` **(** :ref:`String<class_String>` name, :ref:`Variant<class_Variant>` value **)**                                                                                                         |
   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | void                                          | :ref:`set_script<class_Object_method_set_script>` **(** :ref:`Reference<class_Reference>` script **)**                                                                                                                                  |
   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`String<class_String>`                   | :ref:`to_string<class_Object_method_to_string>` **(** **)**                                                                                                                                                                             |
   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`String<class_String>`                   | :ref:`tr<class_Object_method_tr>` **(** :ref:`String<class_String>` message **)** |const|                                                                                                                                               |
   +-----------------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+

.. rst-class:: classref-section-separator

----

.. rst-class:: classref-descriptions-group

Signals
-------

.. _class_Object_signal_script_changed:

.. rst-class:: classref-signal

**script_changed** **(** **)**

Emitted whenever the object's script is changed.

.. rst-class:: classref-section-separator

----

.. rst-class:: classref-descriptions-group

Enumerations
------------

.. _enum_Object_ConnectFlags:

.. rst-class:: classref-enumeration

enum **ConnectFlags**:

.. _class_Object_constant_CONNECT_DEFERRED:

.. rst-class:: classref-enumeration-constant

:ref:`ConnectFlags<enum_Object_ConnectFlags>` **CONNECT_DEFERRED** = ``1``

Connects a signal in deferred mode. This way, signal emissions are stored in a queue, then set on idle time.

.. _class_Object_constant_CONNECT_PERSIST:

.. rst-class:: classref-enumeration-constant

:ref:`ConnectFlags<enum_Object_ConnectFlags>` **CONNECT_PERSIST** = ``2``

Persisting connections are saved when the object is serialized to file.

.. _class_Object_constant_CONNECT_ONESHOT:

.. rst-class:: classref-enumeration-constant

:ref:`ConnectFlags<enum_Object_ConnectFlags>` **CONNECT_ONESHOT** = ``4``

One-shot connections disconnect themselves after emission.

.. _class_Object_constant_CONNECT_REFERENCE_COUNTED:

.. rst-class:: classref-enumeration-constant

:ref:`ConnectFlags<enum_Object_ConnectFlags>` **CONNECT_REFERENCE_COUNTED** = ``8``

Connect a signal as reference-counted. This means that a given signal can be connected several times to the same target, and will only be fully disconnected once no references are left.

.. rst-class:: classref-section-separator

----

.. rst-class:: classref-descriptions-group

Constants
---------

.. _class_Object_constant_NOTIFICATION_POSTINITIALIZE:

.. rst-class:: classref-constant

**NOTIFICATION_POSTINITIALIZE** = ``0``

Called right when the object is initialized. Not available in script.

.. _class_Object_constant_NOTIFICATION_PREDELETE:

.. rst-class:: classref-constant

**NOTIFICATION_PREDELETE** = ``1``

Called before the object is about to be deleted.

.. rst-class:: classref-section-separator

----

.. rst-class:: classref-descriptions-group

Method Descriptions
-------------------

.. _class_Object_method__get:

.. rst-class:: classref-method

:ref:`Variant<class_Variant>` **_get** **(** :ref:`String<class_String>` property **)** |virtual|

Virtual method which can be overridden to customize the return value of :ref:`get<class_Object_method_get>`.

Returns the given property. Returns ``null`` if the ``property`` does not exist.

.. rst-class:: classref-item-separator

----

.. _class_Object_method__get_property_list:

.. rst-class:: classref-method

:ref:`Array<class_Array>` **_get_property_list** **(** **)** |virtual|

Virtual method which can be overridden to customize the return value of :ref:`get_property_list<class_Object_method_get_property_list>`.

Returns the object's property list as an :ref:`Array<class_Array>` of dictionaries.

Each property's :ref:`Dictionary<class_Dictionary>` must contain at least ``name: String`` and ``type: int`` (see :ref:`Variant.Type<enum_@GlobalScope_Variant.Type>`) entries. Optionally, it can also include ``hint: int`` (see :ref:`PropertyHint<enum_@GlobalScope_PropertyHint>`), ``hint_string: String``, and ``usage: int`` (see :ref:`PropertyUsageFlags<enum_@GlobalScope_PropertyUsageFlags>`).

.. rst-class:: classref-item-separator

----

.. _class_Object_method__init:

.. rst-class:: classref-method

void **_init** **(** **)** |virtual|

Called when the object is initialized in memory. Can be defined to take in parameters, that are passed in when constructing.

\ **Note:** If :ref:`_init<class_Object_method__init>` is defined with required parameters, then explicit construction is the only valid means of creating an Object of the class. If any other means (such as :ref:`PackedScene.instance<class_PackedScene_method_instance>`) is used, then initialization will fail.

.. rst-class:: classref-item-separator

----

.. _class_Object_method__notification:

.. rst-class:: classref-method

void **_notification** **(** :ref:`int<class_int>` what **)** |virtual|

Called whenever the object receives a notification, which is identified in ``what`` by a constant. The base **Object** has two constants :ref:`NOTIFICATION_POSTINITIALIZE<class_Object_constant_NOTIFICATION_POSTINITIALIZE>` and :ref:`NOTIFICATION_PREDELETE<class_Object_constant_NOTIFICATION_PREDELETE>`, but subclasses such as :ref:`Node<class_Node>` define a lot more notifications which are also received by this method.

.. rst-class:: classref-item-separator

----

.. _class_Object_method__set:

.. rst-class:: classref-method

:ref:`bool<class_bool>` **_set** **(** :ref:`String<class_String>` property, :ref:`Variant<class_Variant>` value **)** |virtual|

Virtual method which can be overridden to customize the return value of :ref:`set<class_Object_method_set>`.

Sets a property. Returns ``true`` if the ``property`` exists.

.. rst-class:: classref-item-separator

----

.. _class_Object_method__to_string:

.. rst-class:: classref-method

:ref:`String<class_String>` **_to_string** **(** **)** |virtual|

Virtual method which can be overridden to customize the return value of :ref:`to_string<class_Object_method_to_string>`, and thus the object's representation where it is converted to a string, e.g. with ``print(obj)``.

Returns a :ref:`String<class_String>` representing the object. If not overridden, defaults to ``"[ClassName:RID]"``.

.. rst-class:: classref-item-separator

----

.. _class_Object_method_add_user_signal:

.. rst-class:: classref-method

void **add_user_signal** **(** :ref:`String<class_String>` signal, :ref:`Array<class_Array>` arguments=[  ] **)**

Adds a user-defined ``signal``. Arguments are optional, but can be added as an :ref:`Array<class_Array>` of dictionaries, each containing ``name: String`` and ``type: int`` (see :ref:`Variant.Type<enum_@GlobalScope_Variant.Type>`) entries.

.. rst-class:: classref-item-separator

----

.. _class_Object_method_call:

.. rst-class:: classref-method

:ref:`Variant<class_Variant>` **call** **(** :ref:`String<class_String>` method, ... **)** |vararg|

Calls the ``method`` on the object and returns the result. This method supports a variable number of arguments, so parameters are passed as a comma separated list. Example:

::

    call("set", "position", Vector2(42.0, 0.0))

\ **Note:** In C#, the method name must be specified as snake_case if it is defined by a built-in Godot node. This doesn't apply to user-defined methods where you should use the same convention as in the C# source (typically PascalCase).

.. rst-class:: classref-item-separator

----

.. _class_Object_method_call_deferred:

.. rst-class:: classref-method

void **call_deferred** **(** :ref:`String<class_String>` method, ... **)** |vararg|

Calls the ``method`` on the object during idle time. This method supports a variable number of arguments, so parameters are passed as a comma separated list. Example:

::

    call_deferred("set", "position", Vector2(42.0, 0.0))

\ **Note:** In C#, the method name must be specified as snake_case if it is defined by a built-in Godot node. This doesn't apply to user-defined methods where you should use the same convention as in the C# source (typically PascalCase).

.. rst-class:: classref-item-separator

----

.. _class_Object_method_callv:

.. rst-class:: classref-method

:ref:`Variant<class_Variant>` **callv** **(** :ref:`String<class_String>` method, :ref:`Array<class_Array>` arg_array **)**

Calls the ``method`` on the object and returns the result. Contrarily to :ref:`call<class_Object_method_call>`, this method does not support a variable number of arguments but expects all parameters to be via a single :ref:`Array<class_Array>`.

::

    callv("set", [ "position", Vector2(42.0, 0.0) ])

.. rst-class:: classref-item-separator

----

.. _class_Object_method_can_translate_messages:

.. rst-class:: classref-method

:ref:`bool<class_bool>` **can_translate_messages** **(** **)** |const|

Returns ``true`` if the object can translate strings. See :ref:`set_message_translation<class_Object_method_set_message_translation>` and :ref:`tr<class_Object_method_tr>`.

.. rst-class:: classref-item-separator

----

.. _class_Object_method_connect:

.. rst-class:: classref-method

:ref:`Error<enum_@GlobalScope_Error>` **connect** **(** :ref:`String<class_String>` signal, :ref:`Object<class_Object>` target, :ref:`String<class_String>` method, :ref:`Array<class_Array>` binds=[  ], :ref:`int<class_int>` flags=0 **)**

Connects a ``signal`` to a ``method`` on a ``target`` object. Pass optional ``binds`` to the call as an :ref:`Array<class_Array>` of parameters. These parameters will be passed to the method after any parameter used in the call to :ref:`emit_signal<class_Object_method_emit_signal>`. Use ``flags`` to set deferred or one-shot connections. See :ref:`ConnectFlags<enum_Object_ConnectFlags>` constants.

A ``signal`` can only be connected once to a ``method``. It will print an error if already connected, unless the signal was connected with :ref:`CONNECT_REFERENCE_COUNTED<class_Object_constant_CONNECT_REFERENCE_COUNTED>`. To avoid this, first, use :ref:`is_connected<class_Object_method_is_connected>` to check for existing connections.

If the ``target`` is destroyed in the game's lifecycle, the connection will be lost.

Examples:

::

    connect("pressed", self, "_on_Button_pressed") # BaseButton signal
    connect("text_entered", self, "_on_LineEdit_text_entered") # LineEdit signal
    connect("hit", self, "_on_Player_hit", [ weapon_type, damage ]) # User-defined signal

An example of the relationship between ``binds`` passed to :ref:`connect<class_Object_method_connect>` and parameters used when calling :ref:`emit_signal<class_Object_method_emit_signal>`:

::

    connect("hit", self, "_on_Player_hit", [ weapon_type, damage ]) # weapon_type and damage are passed last
    emit_signal("hit", "Dark lord", 5) # "Dark lord" and 5 are passed first
    func _on_Player_hit(hit_by, level, weapon_type, damage):
        print("Hit by %s (lvl %d) with weapon %s for %d damage" % [hit_by, level, weapon_type, damage])

.. rst-class:: classref-item-separator

----

.. _class_Object_method_disconnect:

.. rst-class:: classref-method

void **disconnect** **(** :ref:`String<class_String>` signal, :ref:`Object<class_Object>` target, :ref:`String<class_String>` method **)**

Disconnects a ``signal`` from a ``method`` on the given ``target``.

If you try to disconnect a connection that does not exist, the method will print an error. Use :ref:`is_connected<class_Object_method_is_connected>` to ensure that the connection exists.

.. rst-class:: classref-item-separator

----

.. _class_Object_method_emit_signal:

.. rst-class:: classref-method

void **emit_signal** **(** :ref:`String<class_String>` signal, ... **)** |vararg|

Emits the given ``signal``. The signal must exist, so it should be a built-in signal of this class or one of its parent classes, or a user-defined signal. This method supports a variable number of arguments, so parameters are passed as a comma separated list. Example:

::

    emit_signal("hit", weapon_type, damage)
    emit_signal("game_over")

.. rst-class:: classref-item-separator

----

.. _class_Object_method_free:

.. rst-class:: classref-method

void **free** **(** **)**

Deletes the object from memory immediately. For :ref:`Node<class_Node>`\ s, you may want to use :ref:`Node.queue_free<class_Node_method_queue_free>` to queue the node for safe deletion at the end of the current frame.

\ **Important:** If you have a variable pointing to an object, it will *not* be assigned to ``null`` once the object is freed. Instead, it will point to a *previously freed instance* and you should validate it with :ref:`@GDScript.is_instance_valid<class_@GDScript_method_is_instance_valid>` before attempting to call its methods or access its properties.

.. rst-class:: classref-item-separator

----

.. _class_Object_method_get:

.. rst-class:: classref-method

:ref:`Variant<class_Variant>` **get** **(** :ref:`String<class_String>` property **)** |const|

Returns the :ref:`Variant<class_Variant>` value of the given ``property``. If the ``property`` doesn't exist, this will return ``null``.

\ **Note:** In C#, the property name must be specified as snake_case if it is defined by a built-in Godot node. This doesn't apply to user-defined properties where you should use the same convention as in the C# source (typically PascalCase).

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.. _class_Object_method_get_class:

.. rst-class:: classref-method

:ref:`String<class_String>` **get_class** **(** **)** |const|

Returns the object's class as a :ref:`String<class_String>`. See also :ref:`is_class<class_Object_method_is_class>`.

\ **Note:** :ref:`get_class<class_Object_method_get_class>` does not take ``class_name`` declarations into account. If the object has a ``class_name`` defined, the base class name will be returned instead.

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.. _class_Object_method_get_incoming_connections:

.. rst-class:: classref-method

:ref:`Array<class_Array>` **get_incoming_connections** **(** **)** |const|

Returns an :ref:`Array<class_Array>` of dictionaries with information about signals that are connected to the object.

Each :ref:`Dictionary<class_Dictionary>` contains three String entries:

- ``source`` is a reference to the signal emitter.

- ``signal_name`` is the name of the connected signal.

- ``method_name`` is the name of the method to which the signal is connected.

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.. _class_Object_method_get_indexed:

.. rst-class:: classref-method

:ref:`Variant<class_Variant>` **get_indexed** **(** :ref:`NodePath<class_NodePath>` property_path **)** |const|

Gets the object's property indexed by the given ``property_path``. The path should be a :ref:`NodePath<class_NodePath>` relative to the current object and can use the colon character (``:``) to access nested properties. Examples: ``"position:x"`` or ``"material:next_pass:blend_mode"``.

\ **Note:** Even though the method takes :ref:`NodePath<class_NodePath>` argument, it doesn't support actual paths to :ref:`Node<class_Node>`\ s in the scene tree, only colon-separated sub-property paths. For the purpose of nodes, use :ref:`Node.get_node_and_resource<class_Node_method_get_node_and_resource>` instead.

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.. _class_Object_method_get_instance_id:

.. rst-class:: classref-method

:ref:`int<class_int>` **get_instance_id** **(** **)** |const|

Returns the object's unique instance ID.

This ID can be saved in :ref:`EncodedObjectAsID<class_EncodedObjectAsID>`, and can be used to retrieve the object instance with :ref:`@GDScript.instance_from_id<class_@GDScript_method_instance_from_id>`.

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.. _class_Object_method_get_meta:

.. rst-class:: classref-method

:ref:`Variant<class_Variant>` **get_meta** **(** :ref:`String<class_String>` name, :ref:`Variant<class_Variant>` default=null **)** |const|

Returns the object's metadata entry for the given ``name``.

Throws error if the entry does not exist, unless ``default`` is not ``null`` (in which case the default value will be returned).

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.. _class_Object_method_get_meta_list:

.. rst-class:: classref-method

:ref:`PoolStringArray<class_PoolStringArray>` **get_meta_list** **(** **)** |const|

Returns the object's metadata as a :ref:`PoolStringArray<class_PoolStringArray>`.

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.. _class_Object_method_get_method_list:

.. rst-class:: classref-method

:ref:`Array<class_Array>` **get_method_list** **(** **)** |const|

Returns the object's methods and their signatures as an :ref:`Array<class_Array>`.

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.. _class_Object_method_get_property_list:

.. rst-class:: classref-method

:ref:`Array<class_Array>` **get_property_list** **(** **)** |const|

Returns the object's property list as an :ref:`Array<class_Array>` of dictionaries.

Each property's :ref:`Dictionary<class_Dictionary>` contain at least ``name: String`` and ``type: int`` (see :ref:`Variant.Type<enum_@GlobalScope_Variant.Type>`) entries. Optionally, it can also include ``hint: int`` (see :ref:`PropertyHint<enum_@GlobalScope_PropertyHint>`), ``hint_string: String``, and ``usage: int`` (see :ref:`PropertyUsageFlags<enum_@GlobalScope_PropertyUsageFlags>`).

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.. _class_Object_method_get_script:

.. rst-class:: classref-method

:ref:`Reference<class_Reference>` **get_script** **(** **)** |const|

Returns the object's :ref:`Script<class_Script>` instance, or ``null`` if none is assigned.

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.. _class_Object_method_get_signal_connection_list:

.. rst-class:: classref-method

:ref:`Array<class_Array>` **get_signal_connection_list** **(** :ref:`String<class_String>` signal **)** |const|

Returns an :ref:`Array<class_Array>` of connections for the given ``signal``.

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.. _class_Object_method_get_signal_list:

.. rst-class:: classref-method

:ref:`Array<class_Array>` **get_signal_list** **(** **)** |const|

Returns the list of signals as an :ref:`Array<class_Array>` of dictionaries.

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.. _class_Object_method_has_meta:

.. rst-class:: classref-method

:ref:`bool<class_bool>` **has_meta** **(** :ref:`String<class_String>` name **)** |const|

Returns ``true`` if a metadata entry is found with the given ``name``.

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.. _class_Object_method_has_method:

.. rst-class:: classref-method

:ref:`bool<class_bool>` **has_method** **(** :ref:`String<class_String>` method **)** |const|

Returns ``true`` if the object contains the given ``method``.

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.. _class_Object_method_has_signal:

.. rst-class:: classref-method

:ref:`bool<class_bool>` **has_signal** **(** :ref:`String<class_String>` signal **)** |const|

Returns ``true`` if the given ``signal`` exists.

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.. _class_Object_method_has_user_signal:

.. rst-class:: classref-method

:ref:`bool<class_bool>` **has_user_signal** **(** :ref:`String<class_String>` signal **)** |const|

Returns ``true`` if the given user-defined ``signal`` exists. Only signals added using :ref:`add_user_signal<class_Object_method_add_user_signal>` are taken into account.

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.. _class_Object_method_is_blocking_signals:

.. rst-class:: classref-method

:ref:`bool<class_bool>` **is_blocking_signals** **(** **)** |const|

Returns ``true`` if signal emission blocking is enabled.

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.. _class_Object_method_is_class:

.. rst-class:: classref-method

:ref:`bool<class_bool>` **is_class** **(** :ref:`String<class_String>` class **)** |const|

Returns ``true`` if the object inherits from the given ``class``. See also :ref:`get_class<class_Object_method_get_class>`.

\ **Note:** :ref:`is_class<class_Object_method_is_class>` does not take ``class_name`` declarations into account. If the object has a ``class_name`` defined, :ref:`is_class<class_Object_method_is_class>` will return ``false`` for that name.

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.. _class_Object_method_is_connected:

.. rst-class:: classref-method

:ref:`bool<class_bool>` **is_connected** **(** :ref:`String<class_String>` signal, :ref:`Object<class_Object>` target, :ref:`String<class_String>` method **)** |const|

Returns ``true`` if a connection exists for a given ``signal``, ``target``, and ``method``.

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.. _class_Object_method_is_queued_for_deletion:

.. rst-class:: classref-method

:ref:`bool<class_bool>` **is_queued_for_deletion** **(** **)** |const|

Returns ``true`` if the :ref:`Node.queue_free<class_Node_method_queue_free>` method was called for the object.

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.. _class_Object_method_notification:

.. rst-class:: classref-method

void **notification** **(** :ref:`int<class_int>` what, :ref:`bool<class_bool>` reversed=false **)**

Send a given notification to the object, which will also trigger a call to the :ref:`_notification<class_Object_method__notification>` method of all classes that the object inherits from.

If ``reversed`` is ``true``, :ref:`_notification<class_Object_method__notification>` is called first on the object's own class, and then up to its successive parent classes. If ``reversed`` is ``false``, :ref:`_notification<class_Object_method__notification>` is called first on the highest ancestor (**Object** itself), and then down to its successive inheriting classes.

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.. _class_Object_method_property_list_changed_notify:

.. rst-class:: classref-method

void **property_list_changed_notify** **(** **)**

Notify the editor that the property list has changed, so that editor plugins can take the new values into account. Does nothing on export builds.

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.. _class_Object_method_remove_meta:

.. rst-class:: classref-method

void **remove_meta** **(** :ref:`String<class_String>` name **)**

Removes a given entry from the object's metadata. See also :ref:`set_meta<class_Object_method_set_meta>`.

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.. _class_Object_method_set:

.. rst-class:: classref-method

void **set** **(** :ref:`String<class_String>` property, :ref:`Variant<class_Variant>` value **)**

Assigns a new value to the given property. If the ``property`` does not exist or the given value's type doesn't match, nothing will happen.

\ **Note:** In C#, the property name must be specified as snake_case if it is defined by a built-in Godot node. This doesn't apply to user-defined properties where you should use the same convention as in the C# source (typically PascalCase).

.. rst-class:: classref-item-separator

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.. _class_Object_method_set_block_signals:

.. rst-class:: classref-method

void **set_block_signals** **(** :ref:`bool<class_bool>` enable **)**

If set to ``true``, signal emission is blocked.

.. rst-class:: classref-item-separator

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.. _class_Object_method_set_deferred:

.. rst-class:: classref-method

void **set_deferred** **(** :ref:`String<class_String>` property, :ref:`Variant<class_Variant>` value **)**

Assigns a new value to the given property, after the current frame's physics step. This is equivalent to calling :ref:`set<class_Object_method_set>` via :ref:`call_deferred<class_Object_method_call_deferred>`, i.e. ``call_deferred("set", property, value)``.

\ **Note:** In C#, the property name must be specified as snake_case if it is defined by a built-in Godot node. This doesn't apply to user-defined properties where you should use the same convention as in the C# source (typically PascalCase).

.. rst-class:: classref-item-separator

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.. _class_Object_method_set_indexed:

.. rst-class:: classref-method

void **set_indexed** **(** :ref:`NodePath<class_NodePath>` property_path, :ref:`Variant<class_Variant>` value **)**

Assigns a new value to the property identified by the ``property_path``. The path should be a :ref:`NodePath<class_NodePath>` relative to the current object and can use the colon character (``:``) to access nested properties. Example:

::

    set_indexed("position", Vector2(42, 0))
    set_indexed("position:y", -10)
    print(position) # (42, -10)

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.. _class_Object_method_set_message_translation:

.. rst-class:: classref-method

void **set_message_translation** **(** :ref:`bool<class_bool>` enable **)**

Defines whether the object can translate strings (with calls to :ref:`tr<class_Object_method_tr>`). Enabled by default.

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.. _class_Object_method_set_meta:

.. rst-class:: classref-method

void **set_meta** **(** :ref:`String<class_String>` name, :ref:`Variant<class_Variant>` value **)**

Adds, changes or removes a given entry in the object's metadata. Metadata are serialized and can take any :ref:`Variant<class_Variant>` value.

To remove a given entry from the object's metadata, use :ref:`remove_meta<class_Object_method_remove_meta>`. Metadata is also removed if its value is set to ``null``. This means you can also use ``set_meta("name", null)`` to remove metadata for ``"name"``.

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.. _class_Object_method_set_script:

.. rst-class:: classref-method

void **set_script** **(** :ref:`Reference<class_Reference>` script **)**

Assigns a script to the object. Each object can have a single script assigned to it, which are used to extend its functionality.

If the object already had a script, the previous script instance will be freed and its variables and state will be lost. The new script's :ref:`_init<class_Object_method__init>` method will be called.

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.. _class_Object_method_to_string:

.. rst-class:: classref-method

:ref:`String<class_String>` **to_string** **(** **)**

Returns a :ref:`String<class_String>` representing the object. If not overridden, defaults to ``"[ClassName:RID]"``.

Override the method :ref:`_to_string<class_Object_method__to_string>` to customize the :ref:`String<class_String>` representation.

.. rst-class:: classref-item-separator

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.. _class_Object_method_tr:

.. rst-class:: classref-method

:ref:`String<class_String>` **tr** **(** :ref:`String<class_String>` message **)** |const|

Translates a message using translation catalogs configured in the Project Settings.

Only works if message translation is enabled (which it is by default), otherwise it returns the ``message`` unchanged. See :ref:`set_message_translation<class_Object_method_set_message_translation>`.

.. |virtual| replace:: :abbr:`virtual (This method should typically be overridden by the user to have any effect.)`
.. |const| replace:: :abbr:`const (This method has no side effects. It doesn't modify any of the instance's member variables.)`
.. |vararg| replace:: :abbr:`vararg (This method accepts any number of arguments after the ones described here.)`
.. |static| replace:: :abbr:`static (This method doesn't need an instance to be called, so it can be called directly using the class name.)`