Every Touch has xy coordinates. It also has an identifier id to distinguish one touch from another.

A touch also keeps info about the initial point and time of contact: x0, y0, and t0. This helps compute more complicated gestures like taps, drags, and swipes which need to know about timing or direction.

A list of ongoing touches.

The last position that was tapped. Default value is {x=0,y=0}. Updates whenever the user taps the screen.