Problem with character controler

Unity Engine
1

Hi there.

I am having problems with the character controller.
It seems that when I make the controller move in any direction it needs to accelerate for about 2 tenths of a second to reach max speed.
To me it feels almost like lag. I need my character to instantly move at the designated speed without the need to accelerate. Is this possible with the default character controller?
If I make my own controller I seem to run into other problems with the collider when running into walls and I also have trouble making the character jumping feel right.

I am currently using the following script:

var speed : float = 6.0;
var jumpSpeed : float = 8.0;
var gravity : float = 20.0;

private var moveDirection : Vector3 = Vector3.zero;

function Update() {

    var controller : CharacterController = GetComponent(CharacterController);
	
    if (controller.isGrounded) {
        // We are grounded, so recalculate
        // move direction directly from axes
        moveDirection = Vector3(Input.GetAxis("Horizontal"), 0, Input.GetAxis("Vertical"));
        moveDirection = transform.TransformDirection(moveDirection);
        moveDirection *= speed;
        
        if (Input.GetButton ("Jump")) {
            moveDirection.y = jumpSpeed;
        }
		
    }

    // Apply gravity
    moveDirection.y -= gravity * Time.deltaTime;
    
    // Move the controller
	controller.Move(moveDirection * Time.deltaTime);
}
2

I think…

You need to apply gravity only if the controller is not grounded.

So:

if(controller.isGrounded){
//do your business
}
else{
//apply gravity
}

-JFFM

3

I recommend changing your “function Update()” to “function FixedUpdate()” instead. :slight_smile:
That’s where the problem is.

4

Hey!!!

Your Code is absolutely correct but instead of using Update() you should use FixedUpdate()…that might solve your prob.

5

Go to your Input settings and set Gravity and Sensitivity in both Horizontal and Vertical inputs to something like 10,000.

6

Vicenti has it right. The problem isn’t in your code, however have a look at the following line;

moveDirection = Vector3(Input.GetAxis("Horizontal"), 0, Input.GetAxis("Vertical"));

What’s happening here is that you are multiplying the values for your move directions by the values for “Horizontal” and “Vertical”. With other inputs they are usually digital on/off affairs, so you’d press the button and these values would immediately jump from 0 to 1 (which would be fine for you). However these ones are by default smoothed out so that it takes a configurable amount of time for them to change values between -1, 0 and 1, making it a bit more like an analog stick type of input. Sensitivity tells it how quickly it should change from 0 to either -1 or 1 when you press a key, and gravity tells it how quickly it should return to 0 when you let go of keys. Putting them both to 10000 through the Input Settings is fine, but if you’re a bit anal like me you can just set them both to Infinity so they jump instantly.

7

Thank you. That actually makes sense! Gonna try it first chance i got :slight_smile: