Multiplyaer FPS sprint speed does not work

Questions & Answers
1

I HAVE THIS WARNING: Assets/Scripts/FirstPersonController.cs(65,23): warning CS0219: The variable `speed’ is assigned but its value is never used
I FOLLOWED THE MIKE GEIG TUTORIAL ABOUT MERRY FRAGMAS AND BECAUSE OF THIS WARNING I CAN’T SPRINT. THE ANIMATION WORK’S, BUT MY SPEED DO NOT INCREASE. HERE IS THE SCRIPT:

using UnityEngine;
using System.Collections;

[RequireComponent (typeof(CharacterController))]
public class FirstPersonController : MonoBehaviour {

public bool walkByDefault = true;
public float runSpeed = 8.0f;
public float movementSpeed = 5.0f;
public float mouseSensitivity = 6.0f;
public float upDownRange = 60.0f;
public float jumpSpeed = 20f;
float verticalVelocity = 0;
CharacterController characterController;

Animator anim;
// Use this for initialization
void Start () 
{
	Screen.lockCursor = true;
	characterController = GetComponent<CharacterController> ();

}

// Update is called once per frame
void Update () 
{
	//Rotation

	float rotLeftRight = Input.GetAxis("Mouse X") * mouseSensitivity;
	transform.Rotate (0, rotLeftRight, 0);

	float rotUpDown = Input.GetAxis("Mouse Y") * mouseSensitivity;

	float currentUpDown = Camera.main.transform.rotation.eulerAngles.x;
	float desiredUpDown = currentUpDown - rotUpDown;

	//desiredUpDown = Mathf.Clamp (desiredUpDown, -upDownRange, upDownRange);

	Camera.main.transform.localRotation = Quaternion.Euler(desiredUpDown, 0, 0);

	//Movement
	float forwardSpeed = Input.GetAxis("Vertical") * movementSpeed;
	float sideSpeed = Input.GetAxis("Horizontal") * movementSpeed;

	verticalVelocity += Physics.gravity.y * Time.deltaTime;

	if ( characterController.isGrounded && Input.GetButtonDown ("Jump")) {
		verticalVelocity = jumpSpeed;
	}

	Vector3 speed = new Vector3 ( sideSpeed, verticalVelocity, forwardSpeed );

	speed = transform.rotation * speed;

	characterController.Move ( speed * Time.deltaTime);

	anim = GetComponentInChildren<Animator> ();
}

public void LateUpdate () {

	float speed = runSpeed;

#if !MOBILE_INPUT

// On standalone builds, walk/run speed is modified by a key press.
// We select appropriate speed based on whether we're walking by default, and whether the walk/run toggle button is pressed:
    bool walkOrRun =  Input.GetKey(KeyCode.LeftShift);
	bool aim =Input.GetButton ("Fire2");

	if(aim)
		walkOrRun =false;

    speed = walkByDefault ? (walkOrRun ? runSpeed : movementSpeed) : (walkOrRun ? movementSpeed : runSpeed);
// On mobile, it's controlled in analogue fashion by the v input value, and therefore needs no special handling.
	anim.SetBool ("Sprint" , walkOrRun);
	anim.SetBool ("Aim", aim);

#endif
}

}

ANY IDEAS?

2

You check for walkOrRun, and adjust speed appropriately in LateUpdate()

float speed = runSpeed;
...
if(aim)
    walkOrRun =false;
speed = walkByDefault ? (walkOrRun ? runSpeed : movementSpeed) : (walkOrRun ? movementSpeed : runSpeed);

but you do NOT do this in Update(), which is where you actually move the character.

 Vector3 speed = new Vector3 ( sideSpeed, verticalVelocity, forwardSpeed );
     speed = transform.rotation * speed;
     //need to adjust for walk or run here
     characterController.Move ( speed * Time.deltaTime);