Game Development Reference
In-Depth Information
screen, and the event sets the value of
phase
to
began
. It also sets the
target
to the object that has been
touched and the
x
and
y
to the coordinates of point where the user placed the finger on the screen.
The touch “began” event and its members
phase
is set to
move
. The
target
,
x
, and
y
still contain the values of the object
8-10
, a series of touch events are triggered, with
phase
set to
move
, and the
x
and
y
Figure 8-10.
The touch “move” event and its members
When the user lifts the finger off the screen, a touch event is triggered with
phase
set to
ended
, as
shown in Figure
8-11
. The other three attributes reflect the
target
and the
x
and
y
position where the
touch ended.
Figure 8-11.
The touch “ended” event and its members