Problem with FPS input controller

Questions & Answers
1

Hey all,
i was just creating this FPS input controller but there are some problems.
basically i can walk up because that what i have told the script to do. If i press W he will go up. but if i press S he is meant to walk down but he walks up why is that ?

here is my script :

public var MoveSpeed: float = 4;

function Update () {
if(Input.GetAxisRaw("Vertical")){
	 var MoveFWD : float =  Input.GetAxis("Vertical") * Time.deltaTime * MoveSpeed ;
    
     transform.Translate(Vector3.forward * MoveSpeed);
}
// var MoveLeft : float = MoveSpeed * Time.smoothDeltaTime * Input.GetAxis("Horizontal");
 }

thank you so much in advance

3

You are moving with MoveSpeed instead of with MoveFWD, the value you’ve calculated. Additionally, you should use Mathf.Abs(GetAxis()) and compare it to some limit to avoid joystick calibration errors:

public var MoveSpeed: float = 4;

function Update () {
if (Mathf.Abs(Input.GetAxis("Vertical")) > 0.3){
     var MoveFWD : float =  Input.GetAxis("Vertical") * Time.deltaTime * MoveSpeed ;
     transform.Translate(Vector3.forward * MoveFWD);
}
2

I fixed your formatting for you- it was all messed up.

Also- the problem doesn’t likely have anything to do with your code- chances are your input axis definitions are not set up properly.

Open your project in unity and go to edit->project settings->Input

and open up the two rollouts that say “Vertical”. The one at the top should be fore keyboard input. By default it uses up or W as the positive input, and S or Down as the negative input. I’m willing to bet that you either don’t have a negative button set, or it’s set to W as well. In case you were wondering, the second “Vertical” rollout is for joystick input.