Input Lag in Animation Script

Questions & Answers
1

In the Editor and after building the game on Very-Low Quality (although I can easily run max quality), whenever I press a button, it takes maybe 300ms to actually register the input. And when I tap semi-quick my sprite moves but doesn’t animate.

I’m pretty new and am tired of looking for so long so I posted here. The problem seems to be that it’s taking a while for my animator to receive the boolean (double-checked in animator window).

Oh, and not to forget, my movement script is not affected by this problem although it also uses Input.GetAxis. However, it is a one-liner.

public class RunningAnimation : MonoBehaviour
{
    public bool isRunning;
    public Animator anim;
    bool flipX;
    // Start is called before the first frame update
    void Start()
    {
        anim = GetComponent<Animator>();
    }

    // Update is called once per frame
    void Update()
    {
        float moveDirection = Input.GetAxis("Horizontal");

        switch (moveDirection)
        {
            case 0:
                isRunning = false;
                break;
            case 1:
                isRunning = true;
                flipX = false;
                break;
            case -1:
                isRunning = true;
                flipX = true;
                break;

        }
        anim.SetBool("isRunning", isRunning);
        this.gameObject.GetComponent<SpriteRenderer>().flipX = flipX;
    }
}

176482-forumpost.png

2

Input.GetAxis returns a value between -1 and 1. As you hold a key on your keyboard, the value increases up to 1, using smoothing, to produce natural movement. The issue here is, your switch statement only works when the cases are 0, 1 and -1. As I said, it returns a value between -1 and 1 and does take some time to get there. The input lag isn’t the problem, but how you are reading the value.

I suggest doing some rounding to get the input immediately, for example, right before your switch statement, you could write:

float moveDirection = Input.GetAxis("Horizontal");

// Rounds values to -1, 0 or 1
if (moveDirection > 0)
     moveDirection = 1;
else if (moveDirection < 0)
     moveDirection = -1;

@jasebeaumont