Version: 2023.2
LanguageEnglish
  • C#

CustomCollider2D

class in UnityEngine

/

Inherits from:Collider2D

/

Implemented in:UnityEngine.Physics2DModule

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

Submission failed

For some reason your suggested change could not be submitted. Please <a>try again</a> 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

Represents a Collider2D that is configured by assigning PhysicsShape2D geometry to it via a PhysicsShapeGroup2D.

Unlike all other Collider2D which are defined indirectly by controlling geometric parameters such as the size of a Box or the radius of a Circle, here the CustomCollider2D is defined entirely by adding, removing and modifying PhysicsShape2D. This results in a fully customized Collider2D containing an unlimited number of low-level PhysicsShape2D which can represent any type of shape or shapes, or emulate any other existing Collider2D such as the CircleCollider2D, BoxCollider2D, CapsuleCollider2D, EdgeCollider2D, CompositeCollider2D or TilemapCollider2D.

Alongside the customized geometry, there is full support for all existing Collider2D functionality such as triggers, physics materials, queries etc.

When assigning PhysicsShape2D to the CustomCollider2D, you can do so either during Edit mode or Play mode.

When modifying the CustomCollider2D during Edit mode, all assigned PhysicsShape2D and associated vertices will be saved with the Unity Scene. When the Unity Scene is loaded again, the CustomCollider2D will maintain its configuration. In this way, it acts like any other Collider2D that you make changes to during Edit mode. Using this ability, Edit mode authoring scripts can be used to create custom geometry.

When modifing the CustomCollider2D during Play mode, all assigned PhysicsShape2D and associated vertices will be lost when exiting Play mode. This acts like any other Collider2D.

Properties

customShapeCountThe total number of custom PhysicsShape2D assigned to the Collider. (Read Only)
customVertexCountThe total number of vertices used by the Collider. (Read Only)

Public Methods

ClearCustomShapesDeletes all the shapes and associated vertices for those shapes from the Collider.
GetCustomShapesGets all the physics shapes and vertices in the Collider and places them in the specified PhysicsShapeGroup2D.
SetCustomShapeSets a single shape and all associated shape vertices from the specified physicsShapeGroup into the Collider.
SetCustomShapesSets all the shapes and vertices in the Collider to those represented by the specified PhysicsShapeGroup2D.

Inherited Members

Properties

enabledEnabled Behaviours are Updated, disabled Behaviours are not.
isActiveAndEnabledReports whether a GameObject and its associated Behaviour is active and enabled.
attachedRigidbodyThe Rigidbody2D attached to the Collider2D.
bouncinessGet the bounciness used by the collider.
boundsThe world space bounding area of the collider.
callbackLayersThe Layers that this Collider2D will report collision or trigger callbacks for during a contact with another Collider2D.
compositeGet the CompositeCollider2D that is available to be attached to the collider.
compositeCapableIndicates if this Collider2D is capable of being composited by the CompositeCollider2D.
compositeOperationThe composite operation to be used by a CompositeCollider2D.
compositeOrderThe composite operation order to be used when a CompositeCollider2D is used.
contactCaptureLayersThe layers of other Collider2D involved in contacts with this Collider2D that will be captured.
densityThe density of the collider used to calculate its mass (when auto mass is enabled).
errorStateThe error state that indicates the state of the physics shapes the 2D Collider tried to create. (Read Only)
excludeLayersThe additional Layers that this Collider2D should exclude when deciding if a contact with another Collider2D should happen or not.
forceReceiveLayersThe Layers that this Collider2D can receive forces from during a Collision contact with another Collider2D.
forceSendLayersThe Layers that this Collider2D is allowed to send forces to during a Collision contact with another Collider2D.
frictionGet the friction used by the collider.
includeLayersThe additional Layers that this Collider2D should include when deciding if a contact with another Collider2D should happen or not.
isTriggerIs this collider configured as a trigger?
layerOverridePriorityA decision priority assigned to this Collider2D used when there is a conflicting decision on whether a contact between itself and another Collision2D should happen or not.
localToWorldMatrixThe transformation matrix used to transform the Collider physics shapes to world space.
offsetThe local offset of the collider geometry.
shapeCountThe number of active PhysicsShape2D the Collider2D is currently using.
sharedMaterialThe PhysicsMaterial2D that is applied to this collider.
usedByEffectorWhether the collider is used by an attached effector or not.
gameObjectThe game object this component is attached to. A component is always attached to a game object.
tagThe tag of this game object.
transformThe Transform attached to this GameObject.
hideFlagsShould the object be hidden, saved with the Scene or modifiable by the user?
nameThe name of the object.

Public Methods

CastCasts the Collider shape into the Scene starting at the Collider position ignoring the Collider itself.
ClosestPointReturns a point on the perimeter of this Collider that is closest to the specified position.
CreateMeshCreates a planar Mesh that is identical to the area defined by the Collider2D geometry.
DistanceCalculates the minimum separation of this collider against another collider.
GetContactsRetrieves all contact points for this Collider.
GetShapeBoundsRetrieves a list of Bounds for all PhysicsShape2D created by this Collider2D, and returns the combined Bounds of the retrieved list.
GetShapeHashGenerates a simple hash value based upon the geometry of the Collider2D.
GetShapesGets all the PhysicsShape2D used by the Collider2D.
IsTouchingCheck whether this collider is touching the collider or not.
IsTouchingLayersChecks whether this collider is touching any colliders on the specified layerMask or not.
OverlapGet a list of all Colliders that overlap this Collider.
OverlapPointCheck if a collider overlaps a point in space.
RaycastCasts a ray into the Scene that starts at the Collider position and ignores the Collider itself.
BroadcastMessageCalls the method named methodName on every MonoBehaviour in this game object or any of its children.
CompareTagChecks the GameObject's tag against the defined tag.
GetComponentGets a reference to a component of type T on the same GameObject as the component specified.
GetComponentInChildrenGets a reference to a component of type T on the same GameObject as the component specified, or any child of the GameObject.
GetComponentInParentGets a reference to a component of type T on the same GameObject as the component specified, or any parent of the GameObject.
GetComponentsGets references to all components of type T on the same GameObject as the component specified.
GetComponentsInChildrenGets references to all components of type T on the same GameObject as the component specified, and any child of the GameObject.
GetComponentsInParentGets references to all components of type T on the same GameObject as the component specified, and any parent of the GameObject.
SendMessageCalls the method named methodName on every MonoBehaviour in this game object.
SendMessageUpwardsCalls the method named methodName on every MonoBehaviour in this game object and on every ancestor of the behaviour.
TryGetComponentGets the component of the specified type, if it exists.
GetInstanceIDGets the instance ID of the object.
ToStringReturns the name of the object.

Static Methods

DestroyRemoves a GameObject, component or asset.
DestroyImmediateDestroys the object obj immediately. You are strongly recommended to use Destroy instead.
DontDestroyOnLoadDo not destroy the target Object when loading a new Scene.
FindAnyObjectByTypeRetrieves any active loaded object of Type type.
FindFirstObjectByTypeRetrieves the first active loaded object of Type type.
FindObjectsByTypeRetrieves a list of all loaded objects of Type type.
InstantiateClones the object original and returns the clone.

Operators

boolDoes 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.

Messages

OnCollisionEnter2DSent when an incoming collider makes contact with this object's collider (2D physics only).
OnCollisionExit2DSent when a collider on another object stops touching this object's collider (2D physics only).
OnCollisionStay2DSent each frame where a collider on another object is touching this object's collider (2D physics only).
OnTriggerEnter2DSent when another object enters a trigger collider attached to this object (2D physics only).
OnTriggerExit2DSent when another object leaves a trigger collider attached to this object (2D physics only).
OnTriggerStay2DSent each frame where another object is within a trigger collider attached to this object (2D physics only).