A TouchList represents a list of all of the points of contact with a touch surface; for example, if the user has
three fingers on the screen (or trackpad), the corresponding TouchList would have one Touch object for each finger,
for a total of three entries.
A TouchList represents a list of all of the points of contact with a touch surface; for example, if the user has three fingers on the screen (or trackpad), the corresponding TouchList would have one Touch object for each finger, for a total of three entries.