Airplane Script Control

You should do any movement or direction change inside the if:

private var controller :CharacterController; controller = gameObject.GetComponent(CharacterController); private var moveDirection = Vector3.zero; private var forward = Vector3.zero; private var right = Vector3.zero;

function Update() { forward = transform.forward; right = Vector3(forward.z, 0, -forward.x); var horizontalInput = Input.GetAxisRaw("Horizontal"); var verticalInput = Input.GetAxisRaw("Vertical"); var targetDirection = horizontalInput right + verticalInput forward;
if (targetDirection != Vector3.zero){ moveDirection = Vector3.RotateTowards(moveDirection, targetDirection, 200 Mathf.Deg2Rad Time.deltaTime, 1000); var movement = moveDirection Time.deltaTime 2; controller.Move(movement); transform.rotation = Quaternion.LookRotation(moveDirection); } }

@script RequireComponent(CharacterController) But this isn't the best way to do what you want (this script looks like a Frankenstein creature buit from 3rd Person Controller dead scripts, and gets crazy when you try to go backwards).
An easier way to get the same results without this backward issue is:

var turnSpeed: float = 90; var moveSpeed: float = 5;

private var controller :CharacterController; controller = gameObject.GetComponent(CharacterController);

function Update() { var horizontalInput = Input.GetAxisRaw("Horizontal"); var verticalInput = Input.GetAxisRaw("Vertical"); transform.Rotate(0, horizontalInput turnSpeed Time.deltaTime, 0); var movement = transform.forward verticalInput Time.deltaTime * moveSpeed; controller.Move(movement); }

@script RequireComponent(CharacterController)