using UnityEngine;

using System.Collections;

public class PlayerMove : MonoBehaviour {

    private CharacterController cc;

    private bool isJump;

    private bool isMove;

    public float moveSpeed = 4;             //移动的速度

    public float jumpSpeed = 4;             //跳跃的速度

    public float gravity = 1;               //重力

    private Vector3 moveDirection;

    private float h = 0;

    private float v = 0;

    private Vector3 targetDir;

    private CollisionFlags flags;

    void Start () {

        cc = this.GetComponent<CharacterController>();

    }

    void Update () {

        h = Input.GetAxis("Horizontal");

        v = Input.GetAxis("Vertical");

        if (Mathf.Abs(h) > 0.1f || Mathf.Abs(v) > 0.1f)

        {

            targetDir = new Vector3(h, 0, v);

            transform.LookAt(targetDir + transform.position);

            isMove = true;

        }

        if (Input.GetButton("Jump") && !isJump)

        {

            isJump = true;

            moveDirection = transform.TransformDirection(moveDirection);

            moveDirection.y = jumpSpeed;

        }

        if (isJump)

        {

            //模拟物理,开始下降

            moveDirection.y -= gravity * Time.deltaTime;

            flags =  cc.Move(moveDirection * Time.deltaTime);

            //人物碰撞到下面了

            if (flags == CollisionFlags.Below)

            {

                isJump = false;

            }

        }

        if (isMove)

        {

            cc.Move(transform.forward * moveSpeed * Time.deltaTime);

            isMove = false;

        }

    }

}