Time.Delta Time

Questions & Answers
1

Hello… I want to ask a double questions about unity 3d. I am creating cubes ıt is moving to the left. I want to acceleration with time. For isnstance this cubes reach a maximum Velocity.

private float timer ;
	// Use this for initialization
	void Start ()
	{
	
	}
	
	// Update is called once per frame
	void Update ()
	{
		timer += Time.deltaTime;
	
		if (timer < 10) {
			velocity = velocity + timer;

			transform.Translate (Vector3.left * velocity * Time.deltaTime );
		
			Destroy ();

  1. My second questions is ı am creating a system using with Time.DeltaTime like that

    if (Input.GetKeyDown (“w”) )
    {

     			grounded = false;

 			transform.rigidbody2D.AddForce(Vector3.up * velocity / Time.deltaTime);
 		
 		
 		}

But time.delta time changeable so my game is not stable. How can fix and stable my timer?
The objects moves sometimes fast and sometimes slow…

2

Your physics is kinda messed up. AddForce expects a force. You’re providing a velocity divided by Time.deltaTime, which is not really anything. If you wanted to apply a constant force every second for the period of time that W is pressed (i.e. an impulse), you should replace “velocity” with the desired force and then multiply by Time.deltatTime, not divide by it.