react-konva find all elements inside a group to check for collisions

Question

I am using react-konva (typescript) and have a number of elements inside a group, now I want to check for any collisions when I drag 1 element around.

I have seen this page, but that uses javascript and not typescript.

Here is an example of what I have:

<Stage>
    <Layer>
        <Group>
            <Image />
            <Image />
            <Image />
            <Text />
            <Text />
        </Group>
    </Layer>
</Stage>

I use a transformer to see the anchor points of an element I am dragging around. But I am not sure how to check for any collisions (like the example page).

Any help would be nice.