Language: English
  • C#
  • JS
  • Boo

Script language

Select your preferred scripting language. All code snippets will be displayed in this language.

Collider2D

Namespace: UnityEngine

/

Inherits from: Behaviour

Suggest a change

Success!

Thank you for helping us improve the quality of Unity Documentation. Although we cannot accept all submissions, we do read each suggested change from our users and will make updates where applicable.

Close

Sumbission failed

For some reason your suggested change could not be submitted. Please try again in a few minutes. And thank you for taking the time to help us improve the quality of Unity Documentation.

Close

Cancel

Switch to Manual

Description

Parent class for collider types used with 2D gameplay.

See Also: BoxCollider2D class, CircleCollider2D class, PolygonCollider2D class.

Variables

attachedRigidbody The Rigidbody2D attached to the Collider2D's GameObject.
bounds The world space bounding area of the collider.
isTrigger Is this collider configured as a trigger?
shapeCount The number of separate shaped regions in the collider.
sharedMaterial The PhysicsMaterial2D that is applied to this collider.

Functions

OverlapPoint Check if a collider overlaps a point in space.

Messages

OnCollisionEnter2D Sent when an incoming collider makes contact with this object's collider (2D physics only).
OnCollisionExit2D Sent when a collider on another object stops touching this object's collider (2D physics only).
OnCollisionStay2D Sent each frame where a collider on another object is touching this object's collider (2D physics only).
OnTriggerEnter2D Sent when another object enters a trigger collider attached to this object (2D physics only).
OnTriggerExit2D Sent when another object leaves a trigger collider attached to this object (2D physics only).
OnTriggerStay2D Sent each frame where another object is within a trigger collider attached to this object (2D physics only).

Inherited members

Variables

enabled Enabled Behaviours are Updated, disabled Behaviours are not.
animation The Animation attached to this GameObject (null if there is none attached).
audio The AudioSource attached to this GameObject (null if there is none attached).
camera The Camera attached to this GameObject (null if there is none attached).
collider The Collider attached to this GameObject (null if there is none attached).
collider2D The Collider2D component attached to the object.
constantForce The ConstantForce attached to this GameObject (null if there is none attached).
gameObject The game object this component is attached to. A component is always attached to a game object.
guiText The GUIText attached to this GameObject (null if there is none attached).
guiTexture The GUITexture attached to this GameObject (Read Only). (null if there is none attached).
hingeJoint The HingeJoint attached to this GameObject (null if there is none attached).
light The Light attached to this GameObject (null if there is none attached).
networkView The NetworkView attached to this GameObject (Read Only). (null if there is none attached).
particleEmitter The ParticleEmitter attached to this GameObject (null if there is none attached).
particleSystem The ParticleSystem attached to this GameObject (null if there is none attached).
renderer The Renderer attached to this GameObject (null if there is none attached).
rigidbody The Rigidbody attached to this GameObject (null if there is none attached).
rigidbody2D The Rigidbody2D that is attached to the Component's GameObject.
tag The tag of this game object.
transform The Transform attached to this GameObject (null if there is none attached).
hideFlags Should the object be hidden, saved with the scene or modifiable by the user?
name The name of the object.

Functions

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 game object has one attached, null if it doesn't.
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.
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.
GetInstanceID Returns the instance id of the object.
ToString Returns the name of the game object.

Static Functions

Destroy Removes a gameobject, component or asset.
DestroyImmediate Destroys the object obj immediately. You are strongly recommended to use Destroy instead.
DontDestroyOnLoad Makes the object target not be destroyed automatically when loading a new scene.
FindObjectOfType Returns the first active loaded object of Type type.
FindObjectsOfType Returns a list of all active loaded objects of Type type.
Instantiate Clones the object original and returns the clone.

Operators

bool Does the object exist?
operator != Compares if two objects refer to a different object.
operator == Compares if two objects refer to the same.