How to jump with the Character Controller

[Hektor]

Hello everyone, I'm trying to make a Character Controller to jump, but it doesn't works properly. This is my script:

var speed : float = 3.0;
var gravity : float = 20.0;
var rotateSpeed : float = 3.0;
var jumpSpeed : float = 8.0;
private var moveDirection : Vector3 = Vector3.zero;

function Update () {
    var controller : CharacterController = GetComponent(CharacterController);
if(controller.isGrounded){   
transform.Rotate(0,0,Input.GetAxis ("Horizontal") * rotateSpeed);

transform.Rotate(0,0,Input.GetAxis ("Unhorizontal") * -rotateSpeed);

var forward : Vector3 = transform.TransformDirection(Vector3.left);
var curSpeed : float = speed * Input.GetAxis ("Vertical");

 if (Input.GetButton ("Jump")) 
 {transform.Translate(Vector3.forward * jumpSpeed * Time.deltaTime);}

}

moveDirection.y -= gravity * Time.deltaTime;
controller.SimpleMove(forward * curSpeed);

}

@script RequireComponent(CharacterController)

Can you explain me the proper way to do it please?

[superventure]

You forgot 'controller.Move(moveDirection * Time.deltaTime);' to the bottom where you have the simple.move line.

try this

var speed : float = 3.0;
var gravity : float = 20.0;
var rotateSpeed : float = 3.0;
var jumpSpeed : float = 8.0;
private var moveDirection : Vector3 = Vector3.zero;

function Update () {
var controller : CharacterController = GetComponent(CharacterController);
var forward : Vector3 = transform.TransformDirection(Vector3.left);
var curSpeed : float = speed * Input.GetAxis ("Vertical");transform.Rotate(0,0,Input.GetAxis ("Horizontal") * rotateSpeed);

transform.Rotate(0,0,Input.GetAxis ("Unhorizontal") * -rotateSpeed);

controller.SimpleMove(forward * curSpeed);

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

}

moveDirection.y -= gravity * Time.deltaTime;

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