WASD控制UI界面血条加减

using UnityEngine;

using System.Collections;

using UnityEngine.UI;

public class HealthController : MonoBehaviour {

    //当前对象是血条还是蓝条

    public bool isHealth = false;

    //虚拟轴，横轴，纵轴

    private float hor,ver;

    //血条的最大宽度

    private float healthMaxWidth = ;

    //蓝条的最大宽度

    private float powerMaxWidth = ;

    //当前的虚拟轴

    private float currentAxis;

    //当前的最大宽度

    private float currentMaxWidth;

    //RectTransform组件

    private RectTransform rectTr;

    //速度

    public float speed = ;

    //血条文本

    public Text healthText;

    //蓝条文本

    public Text powerText;

    //血条蓝条的最大值

    public float healthMaxValue = 1000f;

    public float powerMaxValue = 500f;

    //当前的条的最大值

    private float currentMaxValue;

    //当前修改的文本显示框

    private Text currentText;

    void Start()

    {

        rectTr = GetComponent<RectTransform> ();

    }

    void Update()

    {

        hor = Input.GetAxis ("Horizontal");

        ver = Input.GetAxis ("Vertical");

        //如果是血条

        if (isHealth) {

            currentAxis = hor;

            currentMaxWidth = healthMaxWidth;

            currentText = healthText;

            currentMaxValue = healthMaxValue;

        }

        //如果是蓝条

        else {

            currentAxis = ver;

            currentMaxWidth = powerMaxWidth;

            currentText = powerText;

            currentMaxValue = powerMaxValue;

        }

        //根据用户的操作，计算当前条的宽度

        float newWidth = rectTr.sizeDelta.x +

            currentAxis * Time.deltaTime * speed;

        //限制宽度

        float realWidth = Mathf.Clamp (newWidth, , currentMaxWidth);

        //赋值到RectTransform

        rectTr.sizeDelta = new Vector2(realWidth,rectTr.sizeDelta.y);

        //计算当前数值

        float currentValue = (realWidth / currentMaxWidth) * currentMaxValue;

        //转整数操作

        currentValue = Mathf.Round (currentValue);

        //将数值信息显示到Text

        currentText.text = currentValue.ToString () + "/"

            + currentMaxValue.ToString ();

    }

}

血条，蓝条对象上都挂上此脚本