godot-docs/classes/class_rid.rst

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.. _class_RID:

RID
===

A handle for a :ref:`Resource<class_Resource>`'s unique identifier.

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

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

The RID :ref:`Variant<class_Variant>` type is used to access a low-level resource by its unique ID. RIDs are opaque, which means they do not grant access to the resource by themselves. They are used by the low-level server classes, such as :ref:`DisplayServer<class_DisplayServer>`, :ref:`RenderingServer<class_RenderingServer>`, :ref:`TextServer<class_TextServer>`, etc.

A low-level resource may correspond to a high-level :ref:`Resource<class_Resource>`, such as :ref:`Texture<class_Texture>` or :ref:`Mesh<class_Mesh>`.

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

Constructors
------------

.. table::
   :widths: auto

   +-----------------------+------------------------------------------------------------------------------+
   | :ref:`RID<class_RID>` | :ref:`RID<class_RID_constructor_RID>` **(** **)**                            |
   +-----------------------+------------------------------------------------------------------------------+
   | :ref:`RID<class_RID>` | :ref:`RID<class_RID_constructor_RID>` **(** :ref:`RID<class_RID>` from **)** |
   +-----------------------+------------------------------------------------------------------------------+

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

Methods
-------

.. table::
   :widths: auto

   +-------------------------+----------------------------------------------------------------+
   | :ref:`int<class_int>`   | :ref:`get_id<class_RID_method_get_id>` **(** **)** |const|     |
   +-------------------------+----------------------------------------------------------------+
   | :ref:`bool<class_bool>` | :ref:`is_valid<class_RID_method_is_valid>` **(** **)** |const| |
   +-------------------------+----------------------------------------------------------------+

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

Operators
---------

.. table::
   :widths: auto

   +-------------------------+-----------------------------------------------------------------------------------------+
   | :ref:`bool<class_bool>` | :ref:`operator !=<class_RID_operator_neq_RID>` **(** :ref:`RID<class_RID>` right **)**  |
   +-------------------------+-----------------------------------------------------------------------------------------+
   | :ref:`bool<class_bool>` | :ref:`operator \<<class_RID_operator_lt_RID>` **(** :ref:`RID<class_RID>` right **)**   |
   +-------------------------+-----------------------------------------------------------------------------------------+
   | :ref:`bool<class_bool>` | :ref:`operator \<=<class_RID_operator_lte_RID>` **(** :ref:`RID<class_RID>` right **)** |
   +-------------------------+-----------------------------------------------------------------------------------------+
   | :ref:`bool<class_bool>` | :ref:`operator ==<class_RID_operator_eq_RID>` **(** :ref:`RID<class_RID>` right **)**   |
   +-------------------------+-----------------------------------------------------------------------------------------+
   | :ref:`bool<class_bool>` | :ref:`operator ><class_RID_operator_gt_RID>` **(** :ref:`RID<class_RID>` right **)**    |
   +-------------------------+-----------------------------------------------------------------------------------------+
   | :ref:`bool<class_bool>` | :ref:`operator >=<class_RID_operator_gte_RID>` **(** :ref:`RID<class_RID>` right **)**  |
   +-------------------------+-----------------------------------------------------------------------------------------+

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

----

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

Constructor Descriptions
------------------------

.. _class_RID_constructor_RID:

.. rst-class:: classref-constructor

:ref:`RID<class_RID>` **RID** **(** **)**

Constructs an empty **RID** with the invalid ID ``0``.

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

----

.. rst-class:: classref-constructor

:ref:`RID<class_RID>` **RID** **(** :ref:`RID<class_RID>` from **)**

Constructs a **RID** as a copy of the given **RID**.

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

----

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

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

.. _class_RID_method_get_id:

.. rst-class:: classref-method

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

Returns the ID of the referenced low-level resource.

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

----

.. _class_RID_method_is_valid:

.. rst-class:: classref-method

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

Returns ``true`` if the **RID** is not ``0``.

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

----

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

Operator Descriptions
---------------------

.. _class_RID_operator_neq_RID:

.. rst-class:: classref-operator

:ref:`bool<class_bool>` **operator !=** **(** :ref:`RID<class_RID>` right **)**

Returns ``true`` if the **RID**\ s are not equal.

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

----

.. _class_RID_operator_lt_RID:

.. rst-class:: classref-operator

:ref:`bool<class_bool>` **operator <** **(** :ref:`RID<class_RID>` right **)**

Returns ``true`` if the **RID**'s ID is less than ``right``'s ID.

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

----

.. _class_RID_operator_lte_RID:

.. rst-class:: classref-operator

:ref:`bool<class_bool>` **operator <=** **(** :ref:`RID<class_RID>` right **)**

Returns ``true`` if the **RID**'s ID is less than or equal to ``right``'s ID.

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

----

.. _class_RID_operator_eq_RID:

.. rst-class:: classref-operator

:ref:`bool<class_bool>` **operator ==** **(** :ref:`RID<class_RID>` right **)**

Returns ``true`` if both **RID**\ s are equal, which means they both refer to the same low-level resource.

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

----

.. _class_RID_operator_gt_RID:

.. rst-class:: classref-operator

:ref:`bool<class_bool>` **operator >** **(** :ref:`RID<class_RID>` right **)**

Returns ``true`` if the **RID**'s ID is greater than ``right``'s ID.

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

----

.. _class_RID_operator_gte_RID:

.. rst-class:: classref-operator

:ref:`bool<class_bool>` **operator >=** **(** :ref:`RID<class_RID>` right **)**

Returns ``true`` if the **RID**'s ID is greater than or equal to ``right``'s ID.

.. |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.)`
.. |constructor| replace:: :abbr:`constructor (This method is used to construct a type.)`
.. |static| replace:: :abbr:`static (This method doesn't need an instance to be called, so it can be called directly using the class name.)`
.. |operator| replace:: :abbr:`operator (This method describes a valid operator to use with this type as left-hand operand.)`
.. |bitfield| replace:: :abbr:`BitField (This value is an integer composed as a bitmask of the following flags.)`