Game Development Reference
In-Depth Information
SizeChanger
in Listing 31 script begins with looking for a
Collector
attached to the same
game object. If the collector exists, it is stored in
col
variable. There are two major functions
in
SizeChanger
:
IncreaseSize()
and
DecreaseSize()
.
IncreaseSize()
is called by
Food
script,
when the collector hits a collectable that has the script
Food
attached to it.
IncreaseSize()
begins with checking the value of
currentSize
variable; if the value is not zero, the
function returns
false
, which means no food can be taken right now. However, if
currentS-
ize
is zero, the value of
amount
parameter is stored in
currentSize
, and the scale of the ball
(collector) is increased with the same value. In line 28, we use
Invoke()
function to setup
the execution of another function later on. In this case, we specify
DecreaseSize()
function
by writing its name, and we set the delay to the value of
duration
parameter. Finally, if
col
variable is not null (i.e.
Collector
script is attached to the game object), we multiply its ra-
dius by the value of
currentSize
, so the radius becomes suitable for the new size of the ball.
