Basicly it kind of works but it reloads when you empty a clip.... or if are in the process of shooting (im holding down the mouse button) and i press "r" it will reload but if i just push "r" (even with only half a magazine or something) it wont reload. i have tried moving the "if(Input.GetKeyDown("r")) Reload();" to different places but it doesnt help. i've also tried making new functions. how come this happens?

 var range = 100.0;
    var fireRate = 0.05;
    var force = 10.0;
    var damage = 5.0;
    var bulletsPerClip = 40;
    var clips = 20;
    var reloadTime = 0.5;
    var reloadSound : AudioClip;

    private var hitParticles : ParticleEmitter;
    var muzzleFlash : Renderer;

    private var clipsLeft : int = 0;
    private var bulletsLeft : int = 0;
    private var nextFireTime = 0.0;
    private var m_LastFrameShot = -1;


    function Start () {
        hitParticles = GetComponentInChildren(ParticleEmitter);

        // We don't want to emit particles all the time, only when we hit something.
        if (hitParticles)
            hitParticles.emit = false;
        bulletsLeft = bulletsPerClip;
        clipsLeft = clips;

    }



    function LateUpdate() {

        if (muzzleFlash) {
            // We shot this frame, enable the muzzle flash
            if (m_LastFrameShot == Time.frameCount) {
                muzzleFlash.transform.localRotation = Quaternion.AngleAxis(Random.value * 360, Vector3.forward);
                muzzleFlash.enabled = true;

                if (audio) {
                    if (!audio.isPlaying)
                        audio.Play();
                    audio.loop = true;
                }
            } else {
            // We didn't, disable the muzzle flash
                muzzleFlash.enabled = false;
                enabled = false;


                // Play sound
                if (audio)
                {
                    audio.loop = false;
                }
            }
        }
    }



    function Fire () {




        if (bulletsLeft == 0)
            return;

        // If there is more than one bullet between the last and this frame
        // Reset the nextFireTime
        if (Time.time - fireRate > nextFireTime)
            nextFireTime = Time.time - Time.deltaTime;

        // Keep firing until we used up the fire time
        while( nextFireTime < Time.time && bulletsLeft != 0) {
            FireOneShot();
            nextFireTime += fireRate;





        }
    }

    function FireOneShot () {




        var direction = transform.TransformDirection(Vector3.forward);
        var hit : RaycastHit;




        // Did we hit anything?
        if (Physics.Raycast (transform.position, direction, hit, range)) {
            // Apply a force to the rigidbody we hit
            if (hit.rigidbody)
                hit.rigidbody.AddForceAtPosition(force * direction, hit.point);

            // Place the particle system for spawing out of place where we hit the surface!
            // And spawn a couple of particles
            if (hitParticles) {
                hitParticles.transform.position = hit.point;
                hitParticles.transform.rotation = Quaternion.FromToRotation(Vector3.up, hit.normal);
                hitParticles.Emit();
            }

            // Send a damage message to the hit object          
            hit.collider.SendMessageUpwards("ApplyDamage", damage, SendMessageOptions.DontRequireReceiver);
        }

        bulletsLeft--;

        // Register that we shot this frame,
        // so that the LateUpdate function enabled the muzzleflash renderer for one frame
        m_LastFrameShot = Time.frameCount;
        enabled = true;

        // Reload gun in reload Time        


        if (bulletsLeft == 0)
        Reload();

        if(Input.GetKeyDown("r"))
        Reload();


        }




    function Reload () 
    {



    audio.PlayOneShot(reloadSound, 1.0 / audio.volume);

    animation.CrossFade ("Reload right");

        // Wait for reload time first - then add more bullets!




        yield WaitForSeconds(reloadTime);



        if (clipsLeft > 0) {
            clipsLeft--;
            bulletsLeft = bulletsPerClip;



        }
        }







    function GetBulletsLeft () {
        return bulletsLeft;
    }

    function GetClipsLeft (){
        return clipsLeft;
        }








UPDATE***********************************************************
New Script(SLIGHTLy) modified added new function for Input.GetKeyDown.....

var range = 100.0;
var fireRate = 0.05;
var force = 10.0;
var damage = 5.0;
var bulletsPerClip = 40;
var clips = 20;
var reloadTime = 0.5;
var reloadSound : AudioClip;

private var hitParticles : ParticleEmitter;
var muzzleFlash : Renderer;

private var clipsLeft : int = 0;
private var bulletsLeft : int = 0;
private var nextFireTime = 0.0;
private var m_LastFrameShot = -1;


function Update(){

if (Input.GetKeyDown("r"))
    Reload();
    }




function Start () {
    hitParticles = GetComponentInChildren(ParticleEmitter);

    // We don't want to emit particles all the time, only when we hit something.
    if (hitParticles)
        hitParticles.emit = false;
    bulletsLeft = bulletsPerClip;
    clipsLeft = clips;

}

function LateUpdate() {


    if (muzzleFlash) {
        // We shot this frame, enable the muzzle flash
        if (m_LastFrameShot == Time.frameCount) {
            muzzleFlash.transform.localRotation = Quaternion.AngleAxis(Random.value * 360, Vector3.forward);
            muzzleFlash.enabled = true;

            if (audio) {
                if (!audio.isPlaying)
                    audio.Play();
                audio.loop = true;
            }
        } else {
        // We didn't, disable the muzzle flash
            muzzleFlash.enabled = false;
            enabled = false;


            // Play sound
            if (audio)
            {
                audio.loop = false;
            }
        }
    }
}



function Fire () {




    if (bulletsLeft == 0)
        return;

    // If there is more than one bullet between the last and this frame
    // Reset the nextFireTime
    if (Time.time - fireRate > nextFireTime)
        nextFireTime = Time.time - Time.deltaTime;

    // Keep firing until we used up the fire time
    while( nextFireTime < Time.time && bulletsLeft != 0) {
        FireOneShot();
        nextFireTime += fireRate;





    }
}

function FireOneShot () {




    var direction = transform.TransformDirection(Vector3.forward);
    var hit : RaycastHit;




    // Did we hit anything?
    if (Physics.Raycast (transform.position, direction, hit, range)) {
        // Apply a force to the rigidbody we hit
        if (hit.rigidbody)
            hit.rigidbody.AddForceAtPosition(force * direction, hit.point);

        // Place the particle system for spawing out of place where we hit the surface!
        // And spawn a couple of particles
        if (hitParticles) {
            hitParticles.transform.position = hit.point;
            hitParticles.transform.rotation = Quaternion.FromToRotation(Vector3.up, hit.normal);
            hitParticles.Emit();
        }

        // Send a damage message to the hit object          
        hit.collider.SendMessageUpwards("ApplyDamage", damage, SendMessageOptions.DontRequireReceiver);
    }

    bulletsLeft--;

    // Register that we shot this frame,
    // so that the LateUpdate function enabled the muzzleflash renderer for one frame
    m_LastFrameShot = Time.frameCount;
    enabled = true;

    // Reload gun in reload Time        


    if (bulletsLeft == 0)
    Reload();

    }




function Reload () 
{



audio.PlayOneShot(reloadSound, 1.0 / audio.volume);

animation.CrossFade ("Reload right");

    // Wait for reload time first - then add more bullets!




    yield WaitForSeconds(reloadTime);



    if (clipsLeft > 0) {
        clipsLeft--;
        bulletsLeft = bulletsPerClip;



    }
    }







function GetBulletsLeft () {
    return bulletsLeft;
}

function GetClipsLeft (){
    return clipsLeft;
    }