The joint attempts to move a Rigidbody2D to a specific target position.
This joint is the only joint that doesn't connect two Rigidbody2D together. Instead, it only operates on the single body it is connected to.
When connected, it will attempt to move the body to a specified target position. When setting a target you can also set the anchor position which is a point relative to the Rigidbody2D where forces will be applied.
The joint moves the body using a configurable spring that has a force limit.
An example usage for this joint might be to enable Collider2D to be dragged, selecting an anchor point and moving the body to the position under the mouse.
anchor | The local-space anchor on the rigid-body the joint is attached to. |
autoConfigureTarget | Should the target be calculated automatically? |
dampingRatio | The amount by which the target spring force is reduced in proportion to the movement speed. |
frequency | The frequency at which the target spring oscillates around the target position. |
maxForce | The maximum force that can be generated when trying to maintain the target joint constraint. |
target | The world-space position that the joint will attempt to move the body to. |
enabled | Enabled Behaviours are Updated, disabled Behaviours are not. |
isActiveAndEnabled | Has the Behaviour had active and enabled called? |
gameObject | The game object this component is attached to. A component is always attached to a game object. |
tag | The tag of this game object. |
transform | The Transform attached to this GameObject. |
attachedRigidbody | The Rigidbody2D attached to the Joint2D. |
breakForce | The force that needs to be applied for this joint to break. |
breakTorque | The torque that needs to be applied for this joint to break. |
connectedBody | The Rigidbody2D object to which the other end of the joint is attached (ie, the object without the joint component). |
enableCollision | Should the two rigid bodies connected with this joint collide with each other? |
reactionForce | Gets the reaction force of the joint. |
reactionTorque | Gets the reaction torque of the joint. |
hideFlags | Should the object be hidden, saved with the Scene or modifiable by the user? |
name | The name of the object. |
BroadcastMessage | Calls the method named methodName on every MonoBehaviour in this game object or any of its children. |
CompareTag | Is this game object tagged with tag ? |
GetComponent | Returns the component of Type type if the GameObject has one attached, null if it doesn't. Will also return disabled components. |
GetComponentInChildren | Returns the component of Type type in the GameObject or any of its children using depth first search. |
GetComponentInParent | Returns the component of Type type in the GameObject or any of its parents. |
GetComponents | Returns all components of Type type in the GameObject. |
GetComponentsInChildren | Returns all components of Type type in the GameObject or any of its children. Works recursively. |
GetComponentsInParent | Returns all components of Type type in the GameObject or any of its parents. |
SendMessage | Calls the method named methodName on every MonoBehaviour in this game object. |
SendMessageUpwards | Calls the method named methodName on every MonoBehaviour in this game object and on every ancestor of the behaviour. |
TryGetComponent | Gets the component of the specified type, if it exists. |
GetReactionForce | Gets the reaction force of the joint given the specified timeStep. |
GetReactionTorque | Gets the reaction torque of the joint given the specified timeStep. |
GetInstanceID | Gets the instance ID of the object. |
ToString | Returns the name of the object. |
Destroy | Removes a GameObject, component or asset. |
DestroyImmediate | Destroys the object obj immediately. You are strongly recommended to use Destroy instead. |
DontDestroyOnLoad | Do not destroy the target Object when loading a new Scene. |
FindObjectOfType | Returns the first active loaded object of Type type. |
FindObjectsOfType | Gets a list of all loaded objects of Type type. |
Instantiate | Clones the object original and returns the clone. |
bool | Does the object exist? |
operator != | Compares if two objects refer to a different object. |
operator == | Compares two object references to see if they refer to the same object. |
OnJointBreak2D | Called when a Joint2D attached to the same game object breaks. |
Did you find this page useful? Please give it a rating:
Thanks for rating this page!
What kind of problem would you like to report?
Thanks for letting us know! This page has been marked for review based on your feedback.
If you have time, you can provide more information to help us fix the problem faster.
Provide more information
You've told us this page needs code samples. If you'd like to help us further, you could provide a code sample, or tell us about what kind of code sample you'd like to see:
You've told us there are code samples on this page which don't work. If you know how to fix it, or have something better we could use instead, please let us know:
You've told us there is information missing from this page. Please tell us more about what's missing:
You've told us there is incorrect information on this page. If you know what we should change to make it correct, please tell us:
You've told us this page has unclear or confusing information. Please tell us more about what you found unclear or confusing, or let us know how we could make it clearer:
You've told us there is a spelling or grammar error on this page. Please tell us what's wrong:
You've told us this page has a problem. Please tell us more about what's wrong:
Thank you for helping to make the Unity documentation better!
Your feedback has been submitted as a ticket for our documentation team to review.
We are not able to reply to every ticket submitted.