Unity3D笔记 GUI 三、实现选项卡二窗口

实现目标：

　　1、使用个性化Box控件
　　2、个性化Lable控件
　　3、添加纵向滚动条
　　4、新建SelectedItem样式

一、最终效果：

　　

　　二、主要代码

using UnityEngine;
using System.Collections;

/// <summary>
/// 选项卡二
/// </summary>
[System.Serializable]
public class Item
{
    public Texture icon;
    public string name;//key name
    public int amount;//数量
    public string itemName;
    /// <summary>
    /// 处理ItemName
    /// </summary>
    public void SetUpItemName()
    {
        int iLength = this.name.Length + this.amount.ToString().Length;
        if (iLength < )
        {
            while (this.name.Length < )
            {
                this.name += " ";
            }
        }
        if (iLength < )
        {
            itemName = this.name + " " + this.amount;
        }
        else
        {
            itemName = this.name + this.amount;
        }
    }
    /// <summary>
    /// 获得ItemName
    /// </summary>
    /// <returns></returns>
    public string GetItemName()
    {
        return itemName;
    }
}

public class myTest : MonoBehaviour
{
    #region 选项卡2
    Rect rItemBox = new Rect(, , , );
    Rect rTipBox = new Rect(, , , );
    Rect rItemsBox = new Rect(, , , );
    Rect rTipButton = new Rect(, , , );
    Rect rVerScroll = new Rect(, , , );
    float fScrollPos = 1.0f;
    Vector2 scrollPosition = Vector2.zero;//写Vector2(0, 0)的简码
    Vector2 scrollPosition2 = Vector2.zero;
    public Item[] items;

    Item currentItem;
    int inToolItem = ;
    #endregion

    /// <summary>
    /// 是否打开窗口
    /// </summary>
    bool isOpenMenu = false;
    /// <summary>
    /// 窗体的大小和位置【矩形】
    /// </summary>
    Rect myWindow = new Rect(, , , );
    /// <summary>
    /// GUI　Ｓｋｉｎ
    /// </summary>
    public GUISkin customSkin;
    /// <summary>
    /// 关闭按钮
    /// </summary>
    Rect closeButton = new Rect(, , , );

    /// <summary>
    /// 用于工具栏在屏幕上的矩形位置
    /// </summary>
    Rect tabButton = new Rect(, , , );
    /// <summary>
    /// 选项卡索引号
    /// </summary>
    int toolsCount = ;
    /// <summary>
    /// 显示在工具栏按钮上的字符串数组
    /// </summary>
    string[] toolsName = { "选项卡1", "选项卡2", "选项卡3" };

    /// <summary>
    /// 选项卡中的图片
    /// </summary>
    public Texture img;
    /// <summary>
    /// 选项卡中的图片位置
    /// </summary>
    Rect imgRect = new Rect(, , , );

    #region 个性化Box控件
    Rect stateBox = new Rect(, , , );
    Rect weaponBox = new Rect(, , , );
    public Texture box1;
    public Texture box2;
    public Texture box3;
    Rect box1Rect = new Rect(, , , );
    Rect box2Rect = new Rect(, , , );
    Rect box3Rect = new Rect(, , , );
    #endregion

    #region 实现Status窗口  选项卡一
    GUIContent guiWeaponCon = new GUIContent();
    GUIContent guiArmorCon = new GUIContent();
    GUIContent guiAccessCon = new GUIContent();
    GUIContent guiSkillCon = new GUIContent();
    Rect weaponLable = new Rect(, , , );
    Rect armorLable = new Rect(, , , );
    Rect accessLable = new Rect(, , , );
    Rect skillLable = new Rect(, , , );
    string uneuip = "Hello";
    Rect hpLabel = new Rect(, , , );
    Rect mpLabel = new Rect(, , , );
    Rect lvLabel = new Rect(, , , );
    Rect expLabel = new Rect(, , , );
    Rect nextLabel = new Rect(, , , );
    Rect atkLabel = new Rect(, , , );
    Rect defLabel = new Rect(, , , );
    Rect agiLabel = new Rect(, , , );
    Rect intLabel = new Rect(, , , );
    Rect lucLable = new Rect(, , , );
    int fullHP = ;
    int fullMP = ;
    int hp = ;
    int mp = ;
    int lv = ;
    int exp = ;
    int next = ;
    int atk = ;
    int def = ;
    int agi = ;
    int ints = ;
    int luc = ;
    #endregion

    // Use this for initialization
    void Start()
    {
        isOpenMenu = false;
        guiWeaponCon = new GUIContent(uneuip);
        guiArmorCon = new GUIContent(uneuip);
        //guiAccessCon = new GUIContent(uneuip); //位置 要调节下 目前位置有点错位
        guiSkillCon = new GUIContent(uneuip);

        //选项卡一初始化
        if (items.Length>)
        {
            items[].SetUpItemName();
            currentItem = items[];
        }
    }

    // Update is called once per frame
    void Update()
    {
        if (Input.GetKey(KeyCode.M))//当通过名称指定的按键被用户按住时返回true
        {
            isOpenMenu = true;
        }
    }

    void OnGUI()
    {
        GUI.skin = customSkin;
        if (isOpenMenu)
        {
            int windowId = ;
            myWindow = GUI.Window(windowId, myWindow, WindowFunction, "Hello Window");
            #region Mathf.Clamp 限制
            // 限制value的值在min和max之间， 如果value小于min，返回min。 如果value大于max，返回max，否则返回value
            myWindow.x = Mathf.Clamp(myWindow.x, , Screen.width - myWindow.width);// [klæmp] vt.& vi. 夹紧，夹住；锁住；把（砖等）堆高
            myWindow.y = Mathf.Clamp(myWindow.y, , Screen.height - myWindow.height);
            #endregion
        }
    }

    void WindowFunction(int windowId)
    {

        //begin 关闭按钮
        if (GUI.Button(closeButton, "", GUI.skin.GetStyle("closeButton")))
        {
            isOpenMenu = false;//单击关闭按钮：窗口菜单关闭
        }
        //end

        //beign 选项卡
        //返回int类型，被选择按钮的索引号
        toolsCount = GUI.Toolbar(tabButton, toolsCount, toolsName, GUI.skin.GetStyle("tabButton"));//工具栏
        //end

        //begin 选项卡图片
        GUI.DrawTexture(imgRect, img);

        //end
        GUI.DragWindow();//拖动窗口 

        #region 实现Status窗口
        switch (toolsCount)
        {
            case :
                StatusWindow();
                break;
            case :
                ItemWindow();
                break;
            case :
                break;
            default:
                break;
        }
        #endregion

    }

    /// <summary>
    /// 选项卡一
    /// </summary>
    void StatusWindow()
    {

        GUI.Box(stateBox, "");
        GUI.Box(weaponBox, "");//['wepən] n. 武器,兵器
        GUI.DrawTexture(box1Rect, box1);
        GUI.DrawTexture(box2Rect, box2);
        GUI.DrawTexture(box3Rect, box3);

        GUI.Label(hpLabel, hp.ToString() + "/" + fullHP.ToString(), "TextAmount");
        GUI.Label(mpLabel, mp.ToString() + "/" + fullMP.ToString(), "TextAmount");
        GUI.Label(lvLabel, lv.ToString(), "TextAmount");
        GUI.Label(expLabel, exp.ToString(), "TextAmount");
        GUI.Label(nextLabel, next.ToString(), "TextAmount");
        GUI.Label(atkLabel, atk.ToString(), "TextAmount");
        GUI.Label(defLabel, def.ToString(), "TextAmount");
        GUI.Label(agiLabel, agi.ToString(), "TextAmount");
        GUI.Label(intLabel, ints.ToString(), "TextAmount");

        GUI.Label(lucLable, luc.ToString());
        GUI.Label(weaponLable, guiWeaponCon, "TextItem");
        GUI.Label(armorLable, guiArmorCon, "TextItem");
        GUI.Label(accessLable, guiAccessCon, "TextItem");
        GUI.Label(skillLable, guiSkillCon, "TextItem");

    }

    /// <summary>
    /// 选项卡二
    /// </summary>
    void ItemWindow()
    {
        int inItems = ;
        GUI.Box(rItemBox, "");
        GUI.Box(rTipBox, "");

        //定义纵向滚动条
        scrollPosition = GUI.BeginScrollView(new Rect(, , , ), scrollPosition, new Rect(, , ,  * inItems));
        GUIContent[] itemsContent = new GUIContent[inItems];
        for (int i = ; i < inItems; i++)
        {
            if (items.Length > )
            {
                if (i == )
                {
                    itemsContent[i] = new GUIContent(currentItem.itemName, currentItem.icon, "Test Hello  World Hello WorldHello WorldHello WorldHello World ********************");
                }
                else
                {
                    itemsContent[i] = new GUIContent(currentItem.itemName, currentItem.icon, "This key is" + i);
                }
            }
            else
            {
                itemsContent[i] = new GUIContent("None", "");
            }
        }
        inToolItem = GUI.SelectionGrid(new Rect(, , ,  * inItems), inToolItem, itemsContent, , GUI.skin.GetStyle("SelectedItem"));//SelectionGrid()选择表格,创建一个网格按钮
        GUI.EndScrollView();
        //下部分滚动条
        string sInfos = itemsContent[inToolItem].tooltip;
        if (string.IsNullOrEmpty(sInfos))
        {
            sInfos = "show items information here ";
        }
        GUIStyle style = GUI.skin.GetStyle("label");

        if (GUI.tooltip != "")
        {
            float fHeight = style.CalcHeight(new GUIContent(GUI.tooltip), 330.0f);//计算高度
            scrollPosition2 = GUI.BeginScrollView(new Rect(, , , ), scrollPosition2, new Rect(, , , fHeight));
            GUI.Label(new Rect(, , , fHeight), GUI.tooltip);
        }
        else
        {
            float fHeight = style.CalcHeight(new GUIContent(sInfos), 330.0f);//计算高度 

            scrollPosition2 = GUI.BeginScrollView(new Rect(, , , ), scrollPosition2, new Rect(, , , fHeight));
            GUI.Label(new Rect(, , , fHeight), sInfos);
        }
        GUI.EndScrollView();
    }
}

注意:

　　龚老师是用js写的，所以那个类Item直接在Unity3D Inspector中显示了，但是C#要注意了 ，在需要的类前面加一个特性[System.Serializable]js继承Object类默认就是会被序列化。