Make a scrollable field

[Laumark]

Hey guys.

For my mobile game I need to make part of the screen scrollable (The marked space in the picture).
Does anyone have an idea on how to do that?

Thanks in advance!

scrollable

[ivan.popelyshev]

Cant look at it. Can you upload it somewhere?

[Laumark]

Ah, of course!

[ivan.popelyshev]

var myContainer = new PIXI.Container();
//...


//do that once
myContainer.filterArea = new PIXI.Rectangle(myContainer.position.x, myContainer.position.y, containterWidth, containerHeight);

// Instead of mask I use filter. There's no "noop" filter, but fxaa is best choice :)

var fxaaFilter = new PIXI.FXAAFilter();
myContainer.filters = [fxaaFilter];

//that's how you scroll it.
//better to cache "myContainer.height" after you add all elements there
myContainer.pivot.y = Math.max(0, Math.min(scrollY, myContainer.height - filter));

Something like that. Also, there is a problem with InteractinoManager, it does not take into account that trick, so it'll be possible to click on elements that were scrolled out of bounds. BUT if you make top and bottom views interactable and that they appear ON TOP (after) that thing, everything will be ok

[renkinjutsushi]

@ivan.popelyshev, in your code you have mentioned "- filter", is this the height of the filter or there is a special property in the filter?