Legacy Documentation: Version 2017.2 (Go to current version)
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Input.GetMouseButtonDown

public static bool GetMouseButtonDown(int button);

Description

Returns true during the frame the user pressed the given mouse button.

You need to call this function from the Update function, since the state gets reset each frame. It will not return true until the user has released the mouse button and pressed it again. button values are 0 for left button, 1 for right button, 2 for the middle button.

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour { void Update() { if (Input.GetMouseButtonDown(0)) Debug.Log("Pressed left click."); if (Input.GetMouseButtonDown(1)) Debug.Log("Pressed right click."); if (Input.GetMouseButtonDown(2)) Debug.Log("Pressed middle click."); } }
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