Object Rotation/Character Speed

1- You're having problems with the Editor's elephant memory: when you attach a script to some object and run, all variables exposed in the Editor (the public variables) have their initial values saved; these values are always loaded in the exposed variables when running, thus modifying their initial values in the script has no effect at all - you must change the values in the Inspector while not running. If you want to register changes made in the script, click the "gear" button at the left of the script component in the Inspector and select option "Reset".
2- The Move example uses keys AD to move the character left/right. These keys are associated to the default "Horizontal" axis in the Input Manager: it returns -1 when A or left arrow is pressed, 1 for D or right arrow, and 0 for none of them. It's a more convenient way to handle inputs: it's simpler, and makes control configuration menus easier to create (the same applies to keys WS and the "Vertical" axis).
3- You can use the mouse to rotate the character: add the script MouseLook.cs to it and select Mouse X in the Axes field. An alternative (Doom style) is to modify the script to use A and D to rotate the character:

C# version:

public float speed = 6.0f; public float jumpSpeed = 8.0f; public float turnSpeed = 90.0ff; // degrees per second public float gravity = 20.0;

// moveDirection is actually the moving velocity: Vector3 moveDirection = Vector3.zero; // cache the CharacterController to improve performance: CharacterController controller;

void Update() { // rotate the character with AD: transform.Rotate(0, Input.GetAxis("Horizontal") turnSpeed Time.deltaTime, 0); // set variable controller only once, instead of each Update: if (!controller) controller = GetComponent< CharacterController>(); if (controller.isGrounded) { // if character is grounded... // use WS to move it in its local forward/backward direction: moveDirection = Input.GetAxis("Vertical") transform.forward speed; // and check Jump (so it can only jump when grounded!):
if (Input.GetButtonDown ("Jump")) { // when Jump pressed... moveDirection.y = jumpSpeed; // apply a positive vertical speed } } // Apply gravity to the vertical speed: moveDirection.y -= gravity Time.deltaTime; // Move the controller with moveDirection speed controller.Move(moveDirection Time.deltaTime); }

JS version:

var speed : float = 6.0; var jumpSpeed : float = 8.0; var turnSpeed : float = 90.0; // degrees per second var gravity : float = 20.0;

// moveDirection is actually the moving velocity: private var moveDirection : Vector3 = Vector3.zero; // cache the CharacterController to improve performance: private var controller : CharacterController;

function Update() { // rotate the character with AD: transform.Rotate(0, Input.GetAxis("Horizontal") turnSpeed Time.deltaTime, 0); // set variable controller only once, instead of each Update: if (!controller) controller = GetComponent(CharacterController); if (controller.isGrounded) { // if character is grounded... // use WS to move it in its local forward/backward direction: moveDirection = Input.GetAxis("Vertical") transform.forward speed; // and check Jump (so it can only jump when grounded!):
if (Input.GetButtonDown ("Jump")) { // when Jump pressed... moveDirection.y = jumpSpeed; // apply a positive vertical speed } } // Apply gravity to the vertical speed: moveDirection.y -= gravity Time.deltaTime; // Move the controller with moveDirection speed controller.Move(moveDirection Time.deltaTime); }

4- I didn't understand your script: are you using a CharacterController or a Rigidbody? Using both in the same object is a recipe for disaster (unless the rigidbody is kinematic, but you couldn't AddForce to it in such case). As a rule of thumb, only use rigidbodies to add a real world physics flavor to objects that need it: cannon balls, grenades, scene objects that may fall, bounce or hit other objects, like crates, barrels etc.