Vector3.MoveTowards how control speed?

Hello!
I want to control the time a object needs to move from point A to B

https://docs.unity3d.com/ScriptReference/Vector3.MoveTowards.html

MoveTowards example says
float step = speed * Time.deltaTime;

What is speed in this case? Time.deltaTime is the time since the last frame/update.

How can I make a movement for example 3 seconds?

Thanks

 

You can use Time.time, which starts at 0 at runtime and constantly increases by 1 per second as the game is running.
So if you want an object to move for a specified amount of seconds, you could do something like this:

Code (CSharp):

1.  
2. public class Thing : MonoBehavior {
3.  
4.    private float movementTime;
5.  
6.    void Start() {
7.       movementTime = 0f;
8.       MoveForSeconds(3f);
9.    }
10.  
11.    void Update() {
12.       if(Time.time < movementTime) {
13.          transform.position = Vector3.MoveTowards(transform.position, target.position, Time.deltaTime);
14.       }
15.    }
16.  
17.    //Could be public if you want this method to be accessed by other scripts
18.    void MoveForSeconds(float seconds) {
19.       movementTime = Time.time + seconds;
20.    }
21. }
22.  

 

Also, 'speed' in the API example is essentially UnitsMovedPerSecond.

 

Thank you both. speed = UnitsMovedPerSecond is a good advice

When I count the number of update cycles per second I get to 33. In the window stats it says 41 fps. Why the difference?

 

I’m very new to programming, but I’m currently working on a game where an object moves from a current position to a final position in a set amount of time and I’ve had good success using a function called SmoothDamp. This might be something that’s useful for you too. I think it’s similar to Time.time, not completely sure though.
Anyway, I hope that helps.