This is the second in the touchscreen experiment saga. It simply detects when you swipe up on your touchscreen. For it to work, you have to swipe up more than 100 pixels of canvas, or just over half the canvas. You can use the sliders to adjust the threshold for swiping. thresholdX is the maximum amount of X variation through the swipe, so a higher value means less sensitive. thresholdY is the minimum swipe distance in pixels for the duration of the swipe, so a lower value is less sensitive. You can do this project with a mouse if you don't have a touchscreen handy, but it is significantly harder to activate it that way.
