unity click on code to help code example

Example 1: how to detect a mouse click in unity

using UnityEngine;
using System.Collections;

		if (Input.GetMouseButtonDown(0)) {
        	//Left Mouse Button
        } else if (Input.GetMouseButtonDown(1)) {
        	//Right Mouse Button
        } if (Input.GetMouseButtonDown(2)) {
        	//Middle Mouse Button
        }

Example 2: how to code button click unity

using UnityEngine;
using UnityEngine.UI;
using System.Collections;
public class ClickExample : MonoBehaviour {
	public Button yourButton;	
    
    void Start () {
		Button btn = yourButton.GetComponent<Button>();
		btn.onClick.AddListener(TaskOnClick);
	}	
    void TaskOnClick(){
		Debug.Log ("You have clicked the button!");
	}
}