Keep UIBlock/2D/3D inside screen

[gumishima]

I tried to make a component to keep my UI inside the screen/camera (my interface is all screenspace).

I need it because the player can move the UI elements in my game, and can easily drag them off the screen and lose it forever. I also noticed Nova has a sample for UI dragging and resizing, so users trying these can also experience losing stuff out of the screen.

When trying to make the component I had a lot of difficulty due to the CalculatedPosition() method, which whenever I tried to set the local or world position of my UI element, would override it due to the alignment of my UIBlock, due to this, making a component to modularly calculate the limits of the screen was very difficult, also due to the parent UIBlock having a different scale, world position was getting confusing, amounts were never correct somehow.

Maybe having a built-in option or component to keep things inside the screen would be awesome... Or at least would save my life, I tried for long hours and lost my sanity, but I'm also terrible at math lol.

[gumishima]

Found this forum post which basically solves my issue as a whole. (NovaUI-Unity/Community#9)