should I build my own UI scroll bar?
I'm building an openGL ES based 2D game and I'm planning to insert a scroll bar so the user can scroll to different part of the game area. There is one twist since I plan to also to draw something over the scrollbar so it kind of shows the activities over the entire area but more abstractly (e.g. character shows as "dots".
How can this be accomplished? I've read somewhere mixing opengl and UIKit elements can be tricky and may not work well (not to mention modifying the appearance of standard UIScrollview. Where do I need to start to draw my own opengl es based scroll bar, or is there one I can easily integrate into my game to modify? Any suggestions will be greatly appreciated!
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