function Timer()
{
    yield WaitForSeconds(секунды);
}

var timer = 10*Time.deltaTime;
if(timer>0)
   timer -=Time.deltaTime;
else
   DoSomething();

    public int MainTime;
   
    private void Start()
    {
      
        InvokeRepeating("RunTimer", 1, 1);
    }
    void RunTimer()
    {
        MainTime++;
    }

public Vector2 mousePos1;
    public Vector2 mousePos2;

    public LineRenderer lineRenderer;

    private void Start()
    {
        lineRenderer = GetComponent<LineRenderer>();
        mousePos1 = new Vector2(0, 0);
    }

    private void OnMouseDown()
    {
        mousePos2 = Camera.main.ScreenToWorldPoint(Input.mousePosition);
    }

    private void OnMouseDrag()
    {
        if (mousePos2 != new Vector2(0, 0))
        {
            mousePos1 = Camera.main.ScreenToWorldPoint(Input.mousePosition);
            Debug.Log(mousePos1);
            Debug.Log(Vector2.Distance(mousePos2, mousePos1));

            lineRenderer.SetPosition(1, new Vector3( mousePos2.x, 0, 0));
           
        }
    }

lineRenderer.SetPosition(1, new Vector3( mousePos2.x, 0, 0));

lineRenderer.SetPosition(0, mousePos2);
lineRenderer.SetPosition(1, mousePos1);

void LateUpdate(){
  Camera.main.transform.position = playerObject.transform.position + new Vector3(-5, 5, -5);
  Camera.main.transform.LookAt(playerObject.transform.position);
}

Explosion
  Core Particles
  Trail Particles
  Audio 1
  Audio 2
  Light