Game Development Reference
In-Depth Information
Objective complete - mini debriefing
We just created a script that controls the movement of our character and his animation.
First, we created the parameters to use in our script. We also used the
const
keyword in
C# and the
final
keyword in Unity JavaScript to create the constant variables.
Note
The
const
and
final
keywords
We used the
const
keyword in C# to specify that the value of the field or local variable is
constant, which means it can't be modified from anywhere else.
However, there is no
const
keyword in Unity JavaScript, so we use the
final
keyword
instead; there is a slight difference between the
final
and
const
keywords. The
const
keyword can only applied to a field whose value is to be known at compile time, such as
const float
. So, this means that we can't use the
const
keyword with
Vector3
,
Rect
,
Point
, and all the struct that are included in Unity. On the other hand, we will use
readonly
instead. However, the
final
keyword can be used in the both cases.
For more details, visit
http://tutorials.csharp-online.net/
Then, we get
_animator
,
_boxCollider2D
, and
_height
in the
Awake()
function
to check the animation state while it is moving. Then, we set all the variables to their de-
fault value. Next, we created the
Flip()
function, which will set _
isFacingRight
to
true
or
false
depending on the character movement. This function also sets the local
x
scale to
1
if the character is facing right and
-1
if it's facing left.
The next function that we created is the
Grounded()
function that uses
Physic-
s2D.Raycast
to check whether our character is on the ground or not.
In the
Update()
function, we get the character's horizontal movement by using
In-
put.GetAxis("Horizontal")
. Then, we check for the movement direction and call
the
Flip()
function. After that, we call the
Grounded()
function to check whether the
character is on the ground or not. If not, we can make the character jump by using
In-
put.GetButtonDown("Jump")
. Next, we update our camera position by using
Cam-
