For Character Movement (Move left and right)

- using UnityEngine;
using System.Collections;

public class CharacterMovement : MonoBehaviour {

public float maxSpeed = 6.0f;
public bool facingRight = true;
public float moveDirection;


public float jumpSpeed = 600.0f;


//Check Ground

public bool grounded = false;
public Transform groundCheck;
public float groundRadius = 2.0f;
public LayerMask whatIsGround;



void Awake()
{

groundCheck = GameObject.Find ("GroundCheck").transform;
}

// Use this for initialization
void FixedUpdate () {

grounded = Physics2D.OverlapCircle (groundCheck.position, groundRadius, whatIsGround);


GetComponent<Rigidbody> ().velocity = new Vector2 (moveDirection * maxSpeed, GetComponent<Rigidbody> ().velocity.y);

if (moveDirection > 0.0f && !facingRight) {

Flip ();

} else if (moveDirection < 0.0f && facingRight) {

Flip ();


}
}
void Flip(){

facingRight = !facingRight;

transform.Rotate (Vector3.up, 180.0f, Space.World);
}

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

moveDirection = Input.GetAxis("Horizontal");

if (grounded && Input.GetButtonDown ("Jump")) {

GetComponent<Rigidbody> ().AddForce (new Vector2 (0, jumpSpeed));
}

}
}


For camera to follow the character movement.

- using UnityEngine;
using System.Collections;

public class CameraFollow : MonoBehaviour {


public GameObject Character;

private Vector3 offset;


// Use this for initialization
void Start () {

offset = transform.position - Character.transform.position;

}

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


transform.position = Character.transform.position + offset;

}
}