using UnityEngine;
using System.Collections;

public class movement : MonoBehaviour {

    public Animation anim;

    void Update ()
    {
        if (Input.GetKeyDown(KeyCode.W) || Input.GetKeyDown(KeyCode.S) || Input.GetKeyDown(KeyCode.A) || Input.GetKeyDown(KeyCode.D))
        {
            Walk(true);
        }
        else if (!Input.GetKey(KeyCode.W) && !Input.GetKey(KeyCode.S) && !Input.GetKey(KeyCode.A) && !Input.GetKey(KeyCode.D))
        {
            Walk(false);
        }

        if (Input.GetKeyDown(KeyCode.LeftShift) && Input.GetKey(KeyCode.W) || Input.GetKeyDown(KeyCode.W) && Input.GetKey(KeyCode.LeftShift))
        {
            Run(true);
        }
        else if (Input.GetKeyUp(KeyCode.LeftShift) && Input.GetKey(KeyCode.W))
        {
            Walk(true);
        }
        else if (Input.GetKeyUp(KeyCode.LeftShift) && Input.GetKeyUp(KeyCode.W))
        {
            Run (false);
            Walk(false);
        }
        else if (Input.GetKeyDown(KeyCode.LeftShift) && Input.GetKey(KeyCode.S) || Input.GetKeyDown(KeyCode.S) && Input.GetKey(KeyCode.LeftShift))
        {
            Run(true);
        }
        else if (Input.GetKeyUp(KeyCode.LeftShift) && Input.GetKey(KeyCode.S))
        {
            Walk(true);
        }
        else if (Input.GetKeyUp(KeyCode.LeftShift) && Input.GetKeyUp(KeyCode.S))
        {
            Run(false);
            Walk(false);
        }
    }

    public void Run(bool running)
    {
        if (running)
        {
            anim.Play ("run_forward");
        }
        else
        {
            anim.CrossFade("idle");
        }
    }

    public void Walk(bool walk)
    {
        if (walk)
        {
            anim.Play ("walking");
        }
        else
        {
            anim.CrossFade ("idle");
        }
    }
}