hey whenever i touch my screen where i have defined it shoots but takes off a random number sometimes 1 sometimes 4 or 5 here is my code:

here is where i call the event:

if( ShootTouchPad.IsFingerDown())

{

Attack();

         BulletsLeft -= 1;

         if(BulletsLeft < 0)
         {
          BulletsLeft = 0;
         }

         if(BulletsLeft == 0)
         {
          Reload();
         }
    }

and here is the command called:

function Attack()

{

Debug.Log("Shot");

var Hit : RaycastHit;

var DirectionRay = transform.TransformDirection(Vector3.forward);

Debug.DrawRay(transform.position, DirectionRay * Range, Color.blue);
if(Physics.Raycast(transform.position, DirectionRay, Hit, Range))
{
    if(Hit.rigidbody)
    {
       Hit.rigidbody.AddForceAtPosition(DirectionRay * Force, Hit.point);
    }
}