void FixedUpdate()
    {
        if (Input.GetButtonDown("Restart"))
        {
            SceneManager.LoadScene(0);
        }

        if (!isDead)
        {
            // Rotate character
            if (Input.GetAxis("Mouse X") != 0 || Input.GetAxis("Mouse Y") != 0)
            {
                var objectPos = Camera.main.WorldToScreenPoint(transform.position);
                var targetX   = Input.mousePosition.x - objectPos.x;
                var targetY   = Input.mousePosition.y - objectPos.y;
                var angle     = Mathf.Atan2(targetY, targetX) * Mathf.Rad2Deg - 90f;
                rigidBody2d.MoveRotation(angle + turnSpeed * Time.fixedDeltaTime);
            }

            // Shoot
            if (Input.GetAxis("Fire1") != 0)
            {
                Shoot();
            }

            // Move or Dash
            var moveDirection = new Vector2(Input.GetAxisRaw("Horizontal"), Input.GetAxisRaw("Vertical"));
            moveDirection.Normalize();
            if (Input.GetKeyDown(KeyCode.Space) && !isDashing && Time.time > nextDash)
            {
                moveSpeed += dashSpeed;
                Invoke("DashComplete", dashDuration);
                isDashing = true;
                nextDash  = Time.time + dashCooldown;
                gameControllerScript.Dash(dashCooldown);
            }
            rigidBody2d.MovePosition(rigidBody2d.position + moveDirection * moveSpeed * Time.fixedDeltaTime);


            // Reload
            if (Input.GetButtonDown("Reload") && !isReloading && ammoStored > 0)
            {
                isReloading = true;
                gameControllerScript.Reload(reloadDuration);
                reloadSound.Play();
                Invoke("Reload", reloadDuration);
            }
        }
    }