using
             UnityEngine;

            using
             System.Collections;



            ///
            <summary>
            ///
             人物的移动

            ///
            </summary>
            public
            class
             PlayerMove : MonoBehaviour
{

    
            private
            bool
             isMove;
    
            private Vector3 recordMouseDownPosition;        //记录鼠标单击的位子publicfloat speed = 1;
    public UISprite gameBackground;
    public UI2DSprite player;
    public UI2DSpriteAnimation playerAnimation;
    public Sprite playerLeftState;
    public Sprite playerRightState;


    privatefloat areaWidth;
    privatefloat areaHeight;

    //角色移动的边界void Awake()
    {
        //获取到背景Sprite的宽度和高度
         areaWidth = gameBackground.drawingDimensions.z - player.drawingDimensions.z;
        areaHeight = gameBackground.drawingDimensions.w - player.drawingDimensions.w;
    }


    //开始移动publicvoid PlayerStartMove()
    {
        isMove = true;
        recordMouseDownPosition = Input.mousePosition;
    }

    //结束移动publicvoid PlayerEndMove()
    {
        isMove = false;
    }

    void LateUpdate()
    {
        if (isMove)
        {
            //鼠标当前坐标-单击被记录的坐标
              Vector3 dir = Input.mousePosition - recordMouseDownPosition;

            //切换左右人物图片状态if (dir.x > 0)
            {
                Debug.Log("切换成左");
                playerAnimation.enabled = false;
                player.nextSprite = playerRightState;
            }
            elseif (dir.x < 0)
            {
                Debug.Log("右转弯图片");
                playerAnimation.enabled = false;
                player.nextSprite = playerLeftState;

            }
            elseif (dir.x == 0)
            {
                playerAnimation.enabled = true;
            }

            //让人物跟随手指的方向移动this.transform.localPosition = new Vector3(
                    transform.localPosition.x + dir.x * 0.7f,
                    transform.localPosition.y + dir.y * 0.7f,
                    transform.localPosition.z);

            //防止跑出右边界if (transform.localPosition.x > areaWidth && dir.x > 0)
            {
                this.transform.localPosition = new Vector3(
                        areaWidth,
                        transform.localPosition.y,
                        transform.localPosition.z);
            }

            //防止跑出左边界if (transform.localPosition.x < -areaWidth && dir.x < 0)
            {
                this.transform.localPosition = new Vector3(
                        -areaWidth,
                        transform.localPosition.y,
                        transform.localPosition.z);
            }

            //防止跑出上边界if (transform.localPosition.y > areaHeight && dir.y > 0)
            {
                this.transform.localPosition = new Vector3(
                        transform.localPosition.x,
                        areaHeight,
                        transform.localPosition.z);
            }

            //防止跑出下边界if (transform.localPosition.y < -areaHeight && dir.y < 0)
            {
                this.transform.localPosition = new Vector3(
                        transform.localPosition.x,
                        -areaHeight,
                        transform.localPosition.z);
            }

            recordMouseDownPosition = Input.mousePosition;
        }
    }
}