Input.GetButton

Description

Returns true while the virtual button identified by buttonName is held down.

Think auto fire - this will return true as long as the button is held down.

Use this only when implementing events that trigger an action, eg, shooting a weapon. Use GetAxis for input that controls continuous movement.

// Instantiates a projectile every 0.5 seconds,
// if the Fire1 button (default is Ctrl) is pressed.

var projectile : GameObject;
var fireDelta : float = 0.5;

private var nextFire : float = 0.5;
private var newProjectile : GameObject;
private var myTime : float = 0.0;

function Update () {

    myTime = myTime + Time.deltaTime;

    if (Input.GetButton("Fire1") && (myTime > nextFire)) {
        nextFire = myTime + fireDelta;
        newProjectile = Instantiate(projectile, transform.position, transform.rotation);

        // create code here that animates the newProjectile

        nextFire = nextFire - myTime;
        myTime = 0.0;
    }
}

// Instantiates a projectile every 0.5 seconds,
// if the Fire1 button (default is Ctrl) is pressed.

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour
{
    public GameObject projectile;
    public float fireDelta = 0.5F;

    private float nextFire = 0.5F;
    private GameObject newProjectile;
    private float myTime = 0.0F;

    void Update()
    {
        myTime = myTime + Time.deltaTime;

        if (Input.GetButton("Fire1") && myTime > nextFire)
        {
            nextFire = myTime + fireDelta;
            newProjectile = Instantiate(projectile, transform.position, transform.rotation) as GameObject;

            // create code here that animates the newProjectile

            nextFire = nextFire - myTime;
            myTime = 0.0F;
        }
    }
}