Unity Script Reference:

MonoBehaviourNamespace: UnityEngine
Parent class: Behaviour

Description

MonoBehaviour is the base class every script derives from.

Using Javascript every script automatically derives from MonoBehaviour. When using C# or Boo you have to explicitly derive from MonoBehaviour.

Note: The checkbox for disabling a MonoBehavior (on the editor) will only prevent Start(), Awake(), Update(), FixedUpdate(), and OnGUI() from executing. If none of these functions are present, the checkbox is not displayed.

See Also: The chapter on scripting in the manual.

Variables

useGUILayout	Disabling this lets you skip the GUI layout phase.

Functions

CancelInvoke	Cancels all Invoke calls on this MonoBehaviour.
Invoke	Invokes the method methodName in time seconds.
InvokeRepeating	Invokes the method methodName in time seconds.
IsInvoking	Is any invoke on methodName pending?
StartCoroutine	Starts a coroutine.
StopAllCoroutines	Stops all coroutines running on this behaviour.
StopCoroutine	Stops all coroutines named methodName running on this behaviour.

Static Functions

print	Logs message to the Unity Console. This function is identical to Debug.Log.

Messages

Awake	Awake is called when the script instance is being loaded.
FixedUpdate	This function is called every fixed framerate frame, if the MonoBehaviour is enabled.
LateUpdate	LateUpdate is called every frame, if the Behaviour is enabled.
OnAnimatorIK	Callback for setting up animation IK (inverse kinematics).
OnAnimatorMove	Callback for processing animation movements for modifying root motion.
OnApplicationFocus	Sent to all game objects when the player gets or loses focus.
OnApplicationPause	Sent to all game objects when the player pauses.
OnApplicationQuit	Sent to all game objects before the application is quit.
OnAudioFilterRead	If OnAudioFilterRead is implemented, Unity will insert a custom filter into the audio DSP chain.
OnBecameInvisible	OnBecameInvisible is called when the renderer is no longer visible by any camera.
OnBecameVisible	OnBecameVisible is called when the renderer became visible by any camera.
OnCollisionEnter	OnCollisionEnter is called when this collider/rigidbody has begun touching another rigidbody/collider.
OnCollisionEnter2D	Sent when an incoming collider makes contact with this object's collider (2D physics only).
OnCollisionExit	OnCollisionExit is called when this collider/rigidbody has stopped touching another rigidbody/collider.
OnCollisionExit2D	Sent when a collider on another object stops touching this object's collider (2D physics only).
OnCollisionStay	OnCollisionStay is called once per frame for every collider/rigidbody that is touching rigidbody/collider.
OnCollisionStay2D	Sent each frame where a collider on another object is touching this object's collider (2D physics only).
OnConnectedToServer	Called on the client when you have successfully connected to a server.
OnControllerColliderHit	OnControllerColliderHit is called when the controller hits a collider while performing a Move.
OnDestroy	This function is called when the MonoBehaviour will be destroyed.
OnDisable	This function is called when the behaviour becomes disabled () or inactive.
OnDisconnectedFromServer	Called on the client when the connection was lost or you disconnected from the server.
OnDrawGizmos	Implement OnDrawGizmos if you want to draw gizmos that are also pickable and always drawn.
OnDrawGizmosSelected	Implement this OnDrawGizmosSelected if you want to draw gizmos only if the object is selected.
OnEnable	This function is called when the object becomes enabled and active.
OnFailedToConnect	Called on the client when a connection attempt fails for some reason.
OnFailedToConnectToMasterServer	Called on clients or servers when there is a problem connecting to the MasterServer.
OnGUI	OnGUI is called for rendering and handling GUI events.
OnJointBreak	Called when a joint attached to the same game object broke.
OnLevelWasLoaded	This function is called after a new level was loaded.
OnMasterServerEvent	Called on clients or servers when reporting events from the MasterServer.
OnMouseDown	OnMouseDown is called when the user has pressed the mouse button while over the GUIElement or Collider.
OnMouseDrag	OnMouseDrag is called when the user has clicked on a GUIElement or Collider and is still holding down the mouse.
OnMouseEnter	OnMouseEnter is called when the mouse entered the GUIElement or Collider.
OnMouseExit	OnMouseExit is called when the mouse is not any longer over the GUIElement or Collider.
OnMouseOver	OnMouseOver is called every frame while the mouse is over the GUIElement or Collider.
OnMouseUp	OnMouseUp is called when the user has released the mouse button.
OnMouseUpAsButton	OnMouseUpAsButton is only called when the mouse is released over the same GUIElement or Collider as it was pressed.
OnNetworkInstantiate	Called on objects which have been network instantiated with Network.Instantiate.
OnParticleCollision	OnParticleCollision is called when a particle hits a collider.
OnPlayerConnected	Called on the server whenever a new player has successfully connected.
OnPlayerDisconnected	Called on the server whenever a player disconnected from the server.
OnPostRender	OnPostRender is called after a camera finished rendering the scene.
OnPreCull	OnPreCull is called before a camera culls the scene.
OnPreRender	OnPreRender is called before a camera starts rendering the scene.
OnRenderImage	OnRenderImage is called after all rendering is complete to render image.
OnRenderObject	OnRenderObject is called after camera has rendered the scene.
OnSerializeNetworkView	Used to customize synchronization of variables in a script watched by a network view.
OnServerInitialized	Called on the server whenever a Network.InitializeServer was invoked and has completed.
OnTriggerEnter	OnTriggerEnter is called when the Collider other enters the trigger.
OnTriggerEnter2D	Sent when another object enters a trigger collider attached to this object (2D physics only).
OnTriggerExit	OnTriggerExit is called when the Collider other has stopped touching the trigger.
OnTriggerExit2D	Sent when another object leaves a trigger collider attached to this object (2D physics only).
OnTriggerStay	OnTriggerStay is called once per frame for every Collider other that is touching the trigger.
OnTriggerStay2D	Sent each frame where another object is within a trigger collider attached to this object (2D physics only).
OnValidate	This function is called when the script is loaded or a value is changed in the inspector (Called in the editor only).
OnWillRenderObject	OnWillRenderObject is called once for each camera if the object is visible.
Reset	Reset to default values.
Start	Start is called on the frame when a script is enabled just before any of the Update methods is called the first time.
Update	Update is called every frame, if the MonoBehaviour is enabled.

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.
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.
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.