Game Development Reference
In-Depth Information
era.main
to get access to the
Main Camera
object and set its position relative to
Play-
er
.
Tip
Camera.main
lets us access a
Camera
object that has the
MainCamera
tag from any-
where we want.
In the
FixedUpdate()
function, we change the animation state from
Idle
to
Walk
by
using
_animator.SetFloat("Speed",
Mathf.Abs(_horizontalInput));
. Next, we get the
x
speed and check that the
speed is lower than the maximum speed. Then, we add the force to
Rigidbody2D
by us-
ing
rigidbody2D.AddForce(Vector2.right * _horizontalInput *
moveForce);
. We also make sure that the velocity doesn't reach the maximum limit
after adding the force by assigning
newVelocity
to
rigidbody2D.velocity
.
Next, we trigger the jump animation state by using
_animat-
or.SetTrigger("Jump");
. We also add the force to make our character jump using
rigidbody2D.AddForce(new Vector2(Of,jumpForce);
. Then, we trigger
the fall animation state by using
_animator.SetTrigger("Fall");
. We also trig-
ger the ground animation state by using
_animator.SetTrigger("Ground");
if
our character is falling.
Then, we check for the current animation state by getting
animatorStateInfo
using
_animator.GetCurrentAnimatorStateInfo(0);
. Then, if the current state is
the jump state and
y
velocity lower than
0
, we will change the animation state to the fall
state using
if ((rigidbody2D.velocity.y < 0) && (anima-
tionStateInfo.IsName("BaseLayer.Jump"))
.
At last, we use the
OnDrawGizmos()
function to see the visual of the ray that was
drawn in the
Grounded()
function using
Physics2D.Raycast
. We can also use
this function to debug the game without removing any code when releasing the game. Be-
cause all the code in the
OnDrawGizmos()
function won't be shown in the real game,
it's a convenient way to debug our game. As we can see from the following figure, the red
arrows represent where the raycast is, which will only show in the scene view:
