Enemy

using UnityEngine;
using System.Collections;

public class EnemyMove : MonoBehaviour {

    private int _direction = -1;
    private CharacterController _characterController;

    public float Speed = 5.0f;

    //Graity
    public float Gravity = 9.81f;

    public bool StickToPlatform = false;
    public bool CanPushRubber = false;
    public bool CanPushWood = false;
    public bool CanPushMetal = false;

    private float _pushPower = 2.0f; //Please leave this unchanged, the code handles this for you

    public bool FollowPlayer = false;
    public float FollowPlayerRange = 10.0f;
    private float JumpDepleter = 80.0f; //the amount to degrade when doing regular jump

    public bool CanJump = false;

    public float JumpSpeed = 30.0f; //The base jumping speed
    private float _currentJumpSpeed = 0.0f; //the current jump speed, can degrade

    private GameObject _player;
    private bool _isFollowing = false;

    private float _timeStart = 0.0f;
    private bool _timerStarted = false;

    // Use this for initialization
    void Start () {
        _characterController = this.GetComponent<CharacterController>();
        _player = GameObject.Find("Player");
    }

    // Update is called once per frame
    void Update () {
        //if (_modeSwitch.GetGameMode() == GameMode.Platform) //no Movement in Editor mode
        //{

        if (FollowPlayer)
        {
            Vector3 _distanceToPlayer = transform.position - _player.transform.position;
            if (_distanceToPlayer.magnitude < FollowPlayerRange)
            {

                int tempDir = (int)Mathf.Round(-_distanceToPlayer.normalized.x);
                if (tempDir != 0)
                {
                    _direction = tempDir;
                    _isFollowing = true;
                }
            }
            else
                _isFollowing = false;
        }

        if (StickToPlatform)
        {
            if (!_isFollowing)
                if (!(Physics.Raycast(transform.position, (transform.forward * _direction + new Vector3(0, -0.6f, 0) * 2f), 2f)))
                    _direction *= -1;
        }
        RaycastHit[] hit = Physics.RaycastAll(transform.position, (transform.forward * _direction), 1f);
        Debug.Log(hit.Length);
        if (hit.Length > 0)
        {
            if (hit[0].transform.tag != "Player")
            {
                if (_characterController.isGrounded && CanJump)
                {
                    if (Physics.Raycast(transform.position + new Vector3(0, JumpSpeed, 0), (transform.forward * _direction * 2f), 2f))
                        _currentJumpSpeed = JumpSpeed;
                }
                else
                {
                    bool changeDirection = true;

                    if (hit[0].transform.tag == "Rubber" && CanPushRubber)
                        changeDirection = false;
                    else if (hit[0].transform.tag == "Wood" && CanPushWood)
                        changeDirection = false;
                    else if (hit[0].transform.tag == "Metal" && CanPushMetal)
                        changeDirection = false;

                    if (changeDirection)
                        _direction *= -1;
                }
            }
        }

        Debug.Log(_direction);
        _characterController.Move(new Vector3(Speed * _direction, -Gravity, 0)* Time.deltaTime);

        //Debug infromation for the raycasts
        //Debug.DrawRay(transform.position, (transform.forward * m_Direction * 1f));
        //Debug.DrawRay(transform.position, (transform.forward * m_Direction + new Vector3(0, -0.6f, 0)* 1.4f));
    }

    public void ChangeDirection()
    {
        _direction *= -1;
    }


    void OnControllerColliderHit(ControllerColliderHit hit)
    {
        Rigidbody body = hit.collider.attachedRigidbody;
        if (body == null || body.isKinematic)
            return;

        if (hit.moveDirection.y < -0.3f)
            return;


        if (_characterController.velocity.x * _direction < 0.9f)
            _timerStarted = true;
        else
        {
            _timerStarted = false;
            _timeStart = 0.0f;
        }

        if (_timerStarted)
            _timeStart += Time.deltaTime;

        if (_timeStart >= 0.28f)
        {
            ChangeDirection();
            _timerStarted = false;
            _timeStart = 0.0f;
            return;
        }

        Vector3 pushDir = new Vector3(hit.moveDirection.x, 0, hit.moveDirection.z);
        body.velocity = pushDir * _pushPower;
    }
}