How to add mouse wheel callback only for specific sprite/group?

[loover]

How to add mouse wheel callback only for specific sprite/group?

game.input.mouse.mouseWheelCallback

adds a callback for a whole game.

And if a game have more than one scrollers they move synchronously.

[samme]

There's only one mouse wheel. What do you want to do with the specific sprite/group?

[loover]

Scrolling it. I have a two "screens" (group with sprites). Like a list with many items. Some items are hidden and scrolling using for reveal they. Need to achieve the scrolling if user use scroll wheel in any place on the screen.

But if first screen is hidden (alpha = 0, x = -10000, for example) and user try to scrolling the another one - list on the first screen scrollied also.

[samid737]

You can add the screens/list to some array, then iterate trough that array to check if some condition is met when the mouseWheelCallback is executed:

The example can also check if mouse is hovering over some list, see commented code inside scroll().

[loover]

So impossible to have the different mouse wheel callbacks for different sprites/groups?

Is possible to add the mouse wheel functionality to different list classes? E .g. to have an own callback for different instances of this class.

[samme]

Can you just add one callback and then treat the different sprites/groups differently?

[loover]

Yes, I did it. Although this is not very convenient because the lists in the different classes.

[Konstantine]

Hi Loover, can you explain how you did it? I have used mousewheelcallback on input over of each sprites. But it is still working on input out. I have added function in input out to remove input over events. Still its catching mousewheelcallback.