Game Development Reference
In-Depth Information
Figure 5.2
Joystick dead zone causes input within the inner circle to be ignored.
A very basic dead zone implementation would be to set the x and y values to zero
in cases where they are relatively close to zero. If the values range between +/-
32K, perhaps a ~10% dead zone of 3,000 could be utilized:
int
deadZone
= 3000
Vector2
joy
= get joystick input
if
joy
.
x
>= -
deadZone
&&
joy
.
x
<=
deadZone
joy
.
x
= 0
end
if
joy
.
y
>= -
deadZone
&&
joy
.
y
<=
deadZone
joy
.
y
= 0
end
However, there are two problems with this approach. First of all, the dead zone
will be a square instead of a circle. This means if you press the joystick such that
