Changing Direction While In Mid-Air?

Questions & Answers
1

I’m creating a 2D platformer, and the character control script from the Unity API is working decently well. The only concern I have with it is that you cannot go left or right when you are in mid-jump. How can I make the script do this?

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,
                                0);
        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

Move the move direction assignment outside of the if statement, resulting in this code:

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) {
       

        if (Input.GetButton ("Jump")) {
            moveDirection.y = jumpSpeed;
        }
    }

 // We are grounded, so recalculate
        // move direction directly from axes
        moveDirection = Vector3(Input.GetAxis("Horizontal"), 0,
                                0);
        moveDirection = transform.TransformDirection(moveDirection);
        moveDirection *= speed;

    // Apply gravity
    moveDirection.y -= gravity * Time.deltaTime;

    // Move the controller
    controller.Move(moveDirection * Time.deltaTime);
}