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.. Generated automatically by doc/tools/makerst.py in Godot's source tree.
.. DO NOT EDIT THIS FILE, but the HingeJoint.xml source instead.
.. The source is found in doc/classes or modules/<name>/doc_classes.

.. _class_HingeJoint:

HingeJoint
==========

**Inherits:** :ref:`Joint<class_Joint>` **<** :ref:`Spatial<class_Spatial>` **<** :ref:`Node<class_Node>` **<** :ref:`Object<class_Object>`

**Category:** Core

Brief Description
-----------------

A hinge between two 3D bodies.

Properties
----------

+---------------------------+-------------------------------------------------------------------------------------+-------+
| :ref:`float<class_float>` | :ref:`angular_limit/bias<class_HingeJoint_property_angular_limit/bias>`             | 0.3   |
+---------------------------+-------------------------------------------------------------------------------------+-------+
| :ref:`bool<class_bool>`   | :ref:`angular_limit/enable<class_HingeJoint_property_angular_limit/enable>`         | false |
+---------------------------+-------------------------------------------------------------------------------------+-------+
| :ref:`float<class_float>` | :ref:`angular_limit/lower<class_HingeJoint_property_angular_limit/lower>`           | -90.0 |
+---------------------------+-------------------------------------------------------------------------------------+-------+
| :ref:`float<class_float>` | :ref:`angular_limit/relaxation<class_HingeJoint_property_angular_limit/relaxation>` | 1.0   |
+---------------------------+-------------------------------------------------------------------------------------+-------+
| :ref:`float<class_float>` | :ref:`angular_limit/softness<class_HingeJoint_property_angular_limit/softness>`     | 0.9   |
+---------------------------+-------------------------------------------------------------------------------------+-------+
| :ref:`float<class_float>` | :ref:`angular_limit/upper<class_HingeJoint_property_angular_limit/upper>`           | 90.0  |
+---------------------------+-------------------------------------------------------------------------------------+-------+
| :ref:`bool<class_bool>`   | :ref:`motor/enable<class_HingeJoint_property_motor/enable>`                         | false |
+---------------------------+-------------------------------------------------------------------------------------+-------+
| :ref:`float<class_float>` | :ref:`motor/max_impulse<class_HingeJoint_property_motor/max_impulse>`               | 1.0   |
+---------------------------+-------------------------------------------------------------------------------------+-------+
| :ref:`float<class_float>` | :ref:`motor/target_velocity<class_HingeJoint_property_motor/target_velocity>`       | 1.0   |
+---------------------------+-------------------------------------------------------------------------------------+-------+
| :ref:`float<class_float>` | :ref:`params/bias<class_HingeJoint_property_params/bias>`                           | 0.3   |
+---------------------------+-------------------------------------------------------------------------------------+-------+

Methods
-------

+---------------------------+--------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`bool<class_bool>`   | :ref:`get_flag<class_HingeJoint_method_get_flag>` **(** :ref:`Flag<enum_HingeJoint_Flag>` flag **)** const                                 |
+---------------------------+--------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`float<class_float>` | :ref:`get_param<class_HingeJoint_method_get_param>` **(** :ref:`Param<enum_HingeJoint_Param>` param **)** const                            |
+---------------------------+--------------------------------------------------------------------------------------------------------------------------------------------+
| void                      | :ref:`set_flag<class_HingeJoint_method_set_flag>` **(** :ref:`Flag<enum_HingeJoint_Flag>` flag, :ref:`bool<class_bool>` enabled **)**      |
+---------------------------+--------------------------------------------------------------------------------------------------------------------------------------------+
| void                      | :ref:`set_param<class_HingeJoint_method_set_param>` **(** :ref:`Param<enum_HingeJoint_Param>` param, :ref:`float<class_float>` value **)** |
+---------------------------+--------------------------------------------------------------------------------------------------------------------------------------------+

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

.. _enum_HingeJoint_Param:

.. _class_HingeJoint_constant_PARAM_BIAS:

.. _class_HingeJoint_constant_PARAM_LIMIT_UPPER:

.. _class_HingeJoint_constant_PARAM_LIMIT_LOWER:

.. _class_HingeJoint_constant_PARAM_LIMIT_BIAS:

.. _class_HingeJoint_constant_PARAM_LIMIT_SOFTNESS:

.. _class_HingeJoint_constant_PARAM_LIMIT_RELAXATION:

.. _class_HingeJoint_constant_PARAM_MOTOR_TARGET_VELOCITY:

.. _class_HingeJoint_constant_PARAM_MOTOR_MAX_IMPULSE:

.. _class_HingeJoint_constant_PARAM_MAX:

enum **Param**:

- **PARAM_BIAS** = **0** --- The speed with which the two bodies get pulled together when they move in different directions.

- **PARAM_LIMIT_UPPER** = **1** --- The maximum rotation. Only active if :ref:`angular_limit/enable<class_HingeJoint_property_angular_limit/enable>` is ``true``.

- **PARAM_LIMIT_LOWER** = **2** --- The minimum rotation. Only active if :ref:`angular_limit/enable<class_HingeJoint_property_angular_limit/enable>` is ``true``.

- **PARAM_LIMIT_BIAS** = **3** --- The speed with which the rotation across the axis perpendicular to the hinge gets corrected.

- **PARAM_LIMIT_SOFTNESS** = **4**

- **PARAM_LIMIT_RELAXATION** = **5** --- The lower this value, the more the rotation gets slowed down.

- **PARAM_MOTOR_TARGET_VELOCITY** = **6** --- Target speed for the motor.

- **PARAM_MOTOR_MAX_IMPULSE** = **7** --- Maximum acceleration for the motor.

- **PARAM_MAX** = **8** --- Represents the size of the :ref:`Param<enum_HingeJoint_Param>` enum.

.. _enum_HingeJoint_Flag:

.. _class_HingeJoint_constant_FLAG_USE_LIMIT:

.. _class_HingeJoint_constant_FLAG_ENABLE_MOTOR:

.. _class_HingeJoint_constant_FLAG_MAX:

enum **Flag**:

- **FLAG_USE_LIMIT** = **0** --- If ``true``, the hinges maximum and minimum rotation, defined by :ref:`angular_limit/lower<class_HingeJoint_property_angular_limit/lower>` and :ref:`angular_limit/upper<class_HingeJoint_property_angular_limit/upper>` has effects.

- **FLAG_ENABLE_MOTOR** = **1** --- When activated, a motor turns the hinge.

- **FLAG_MAX** = **2** --- Represents the size of the :ref:`Flag<enum_HingeJoint_Flag>` enum.

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

A HingeJoint normally uses the Z axis of body A as the hinge axis, another axis can be specified when adding it manually though.

Property Descriptions
---------------------

.. _class_HingeJoint_property_angular_limit/bias:

- :ref:`float<class_float>` **angular_limit/bias**

+-----------+------------------+
| *Default* | 0.3              |
+-----------+------------------+
| *Setter*  | set_param(value) |
+-----------+------------------+
| *Getter*  | get_param()      |
+-----------+------------------+

The speed with which the rotation across the axis perpendicular to the hinge gets corrected.

.. _class_HingeJoint_property_angular_limit/enable:

- :ref:`bool<class_bool>` **angular_limit/enable**

+-----------+-----------------+
| *Default* | false           |
+-----------+-----------------+
| *Setter*  | set_flag(value) |
+-----------+-----------------+
| *Getter*  | get_flag()      |
+-----------+-----------------+

If ``true``, the hinges maximum and minimum rotation, defined by :ref:`angular_limit/lower<class_HingeJoint_property_angular_limit/lower>` and :ref:`angular_limit/upper<class_HingeJoint_property_angular_limit/upper>` has effects.

.. _class_HingeJoint_property_angular_limit/lower:

- :ref:`float<class_float>` **angular_limit/lower**

+-----------+-------+
| *Default* | -90.0 |
+-----------+-------+

The minimum rotation. Only active if :ref:`angular_limit/enable<class_HingeJoint_property_angular_limit/enable>` is ``true``.

.. _class_HingeJoint_property_angular_limit/relaxation:

- :ref:`float<class_float>` **angular_limit/relaxation**

+-----------+------------------+
| *Default* | 1.0              |
+-----------+------------------+
| *Setter*  | set_param(value) |
+-----------+------------------+
| *Getter*  | get_param()      |
+-----------+------------------+

The lower this value, the more the rotation gets slowed down.

.. _class_HingeJoint_property_angular_limit/softness:

- :ref:`float<class_float>` **angular_limit/softness**

+-----------+------------------+
| *Default* | 0.9              |
+-----------+------------------+
| *Setter*  | set_param(value) |
+-----------+------------------+
| *Getter*  | get_param()      |
+-----------+------------------+

.. _class_HingeJoint_property_angular_limit/upper:

- :ref:`float<class_float>` **angular_limit/upper**

+-----------+------+
| *Default* | 90.0 |
+-----------+------+

The maximum rotation. Only active if :ref:`angular_limit/enable<class_HingeJoint_property_angular_limit/enable>` is ``true``.

.. _class_HingeJoint_property_motor/enable:

- :ref:`bool<class_bool>` **motor/enable**

+-----------+-----------------+
| *Default* | false           |
+-----------+-----------------+
| *Setter*  | set_flag(value) |
+-----------+-----------------+
| *Getter*  | get_flag()      |
+-----------+-----------------+

When activated, a motor turns the hinge.

.. _class_HingeJoint_property_motor/max_impulse:

- :ref:`float<class_float>` **motor/max_impulse**

+-----------+------------------+
| *Default* | 1.0              |
+-----------+------------------+
| *Setter*  | set_param(value) |
+-----------+------------------+
| *Getter*  | get_param()      |
+-----------+------------------+

Maximum acceleration for the motor.

.. _class_HingeJoint_property_motor/target_velocity:

- :ref:`float<class_float>` **motor/target_velocity**

+-----------+------------------+
| *Default* | 1.0              |
+-----------+------------------+
| *Setter*  | set_param(value) |
+-----------+------------------+
| *Getter*  | get_param()      |
+-----------+------------------+

Target speed for the motor.

.. _class_HingeJoint_property_params/bias:

- :ref:`float<class_float>` **params/bias**

+-----------+------------------+
| *Default* | 0.3              |
+-----------+------------------+
| *Setter*  | set_param(value) |
+-----------+------------------+
| *Getter*  | get_param()      |
+-----------+------------------+

The speed with which the two bodies get pulled together when they move in different directions.

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

.. _class_HingeJoint_method_get_flag:

- :ref:`bool<class_bool>` **get_flag** **(** :ref:`Flag<enum_HingeJoint_Flag>` flag **)** const

.. _class_HingeJoint_method_get_param:

- :ref:`float<class_float>` **get_param** **(** :ref:`Param<enum_HingeJoint_Param>` param **)** const

.. _class_HingeJoint_method_set_flag:

- void **set_flag** **(** :ref:`Flag<enum_HingeJoint_Flag>` flag, :ref:`bool<class_bool>` enabled **)**

.. _class_HingeJoint_method_set_param:

- void **set_param** **(** :ref:`Param<enum_HingeJoint_Param>` param, :ref:`float<class_float>` value **)**