2D Orthographic Smooth Zoom

Hey, so I've implemented a basic zoom function so that when the player and enemy objects are close/far it zooms in/out.

The problem now is that I'm looking to implement a smooth transitional zoom rather than an instantaneous change.

Here's my code:

Code (CSharp):

1. void Update()
2.     {
3.  
4.         playerPosition = GameObject.FindGameObjectWithTag ("Player").transform;
5.  
6.         enemyPosition = GameObject.FindGameObjectWithTag ("Enemy").transform;
7.  
8.         if (playerPosition.position.x + 8 > enemyPosition.position.x)
9.         {
10.             cam.orthographicSize = 5;
11.         }
12.  
13.         if (playerPosition.position.x + 8 < enemyPosition.position.x)
14.         {
15.             cam.orthographicSize = 10;
16.         }
17.     }

How would I go about making it a smooth change in zoom instead of an instant one? Any help would be greatly appreciated.

 

look into interpolation: https://docs.unity3d.com/ru/current/ScriptReference/Mathf.Lerp.html

so you'd want to do something like:

Code (CSharp):

1.  
2. if (playerPosition..x + 8 > enemyPosition..x)
3. {
4.     cam.orthographicSize = Mathf.Lerp (cam.orthographicSize, 5.0f, Time.deltaTime);
5. }
6.  

 

Cheers, that is exactly what I needed to know. Thanks for your help!

 

You could also use Mathf.smoothstep with a bit of tweaking. For anyone who can't use lerp for whatever reason.