Hello! :) This is scrollbar engine! This is not for scrolling pages, but for values. Press the green flag and give it a try. The value changes as you move the black box across the bar! You can also change the "maxValue" and "barLength" variables. An issue I ran into was erasing. When you are using the pen extension in Scratch, you can only erase ALL pen. This scrollbar uses pen, so if you call "erase all", it'll erase the scrollbar as well. Because the "barLength" variable could constantly change, it'll keep erasing ALL pen. If the player is allowed to change "barLength", make sure to redraw your project when the "reload pen" broadcast is called!
If you are gonna use this engine, make sure to give credit! Just drag the "Scroller Engine" into your backpack ;)
