New Input System, Mouse Scroll Wheel and Zoom

Hiya guys,

Just playing around with the new input system and trying to get the mouse scroll to work with the Camera.main.fieldOfView to zoom in.

However, all the code I write comes up with an "invalid operation exception vector2control" error. Not sure why.

Code (CSharp):

1.  private void Awake()
2.     {
3.        // cameraOffset = transform.position - playerTF.position;
4.  
5.         controls = new Controls();
6.         controls.Move.MoveScroll.performed += ctx => Scroll();
7.  
8.     }
9.  
10.  
11.     private void Scroll()
12.     {  
13.         Camera.main.fieldOfView += controls.Move.MoveScroll.ReadValue<Vector2>().y;
14.     }

 

I do believe the actual value you want to read is in the ctx variable, pass it into Scroll() then use it instead of controls.

 

Hey! I'm trying to figure out the same thing - do you have an example of how to make this work? The concept of the ctx isn't really clicking with me yet....

 

You can register a Callback that takes in the context as a parameter. Then you can read the value from the context:

Code (CSharp):

1.  
2.     controls.Player.Look.performed += ctx => OnLook(ctx);
3.  
4.     public void OnLook(InputAction.CallbackContext ctx)
5.     {
6.         Vector2 v = (Vector2)ctx.ReadValueAsObject();
7.         characterController.Look(v);
8.     }
9.