Legacy Documentation: Version 2018.1 (Go to current version)
LanguageEnglish
  • C#
  • JS

Script language

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

MonoBehaviour.OnMouseOver()

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

Description

Called every frame while the mouse is over the GUIElement or Collider.

A call to OnMouseEnter occurs on the first frame the mouse is over the object. OnMouseOver is then called each frame until the mouse moves away, at which point OnMouseExit is called.

This function is not called on objects that belong to Ignore Raycast layer.

This function is called on Colliders marked as Trigger if and only if Physics.queriesHitTriggers is true.

OnMouseOver can be a co-routine, simply use the yield statement in the function. This event is sent to all scripts attached to the Collider or GUIElement.

#pragma strict
//Attach this script to a GameObject to have it output messages when your mouse hovers over it.
public class OnMouseOverExample extends MonoBehaviour {
	function OnMouseOver() {
		//If your mouse hovers over the GameObject with the script attached, output this message
		Debug.Log("Mouse is over GameObject.");
	}
	function OnMouseExit() {
		//The mouse is no longer hovering over the GameObject so output this message each frame
		Debug.Log("Mouse is no longer on GameObject.");
	}
}
//Attach this script to a GameObject to have it output messages when your mouse hovers over it.
using UnityEngine;

public class OnMouseOverExample : MonoBehaviour { void OnMouseOver() { //If your mouse hovers over the GameObject with the script attached, output this message Debug.Log("Mouse is over GameObject."); }

void OnMouseExit() { //The mouse is no longer hovering over the GameObject so output this message each frame Debug.Log("Mouse is no longer on GameObject."); } }

Another example:

#pragma strict
// This second example changes the GameObject's color to red when the mouse hovers over it
// Ensure the GameObject has a MeshRenderer
public class OnMouseOverColor extends MonoBehaviour {
	var m_MouseOverColor: Color = Color.red;
	var m_OriginalColor: Color;
	var m_Renderer: MeshRenderer;
	function Start() {
		//Fetch the mesh renderer component from the GameObject
		m_Renderer = GetComponent.<MeshRenderer>();
		//Fetch the original color of the GameObject
		m_OriginalColor = m_Renderer.material.color;
	}
	function OnMouseOver() {
		// Change the color of the GameObject to red when the mouse is over GameObject
		m_Renderer.material.color = m_MouseOverColor;
	}
	function OnMouseExit() {
		// Reset the color of the GameObject back to normal
		m_Renderer.material.color = m_OriginalColor;
	}
}
// This second example changes the GameObject's color to red when the mouse hovers over it
// Ensure the GameObject has a MeshRenderer

using UnityEngine;

public class OnMouseOverColor : MonoBehaviour { //When the mouse hovers over the GameObject, it turns to this color (red) Color m_MouseOverColor = Color.red;

//This stores the GameObject’s original color Color m_OriginalColor;

//Get the GameObject’s mesh renderer to access the GameObject’s material and color MeshRenderer m_Renderer;

void Start() { //Fetch the mesh renderer component from the GameObject m_Renderer = GetComponent<MeshRenderer>(); //Fetch the original color of the GameObject m_OriginalColor = m_Renderer.material.color; }

void OnMouseOver() { // Change the color of the GameObject to red when the mouse is over GameObject m_Renderer.material.color = m_MouseOverColor; }

void OnMouseExit() { // Reset the color of the GameObject back to normal m_Renderer.material.color = m_OriginalColor; } }

Did you find this page useful? Please give it a rating: