Unity3D 相关项目代码

一、Application.PresistentDataPath

注意最后面是没有/的

        public static string PresistentDataPathForEditor = "C:/Users/Administrator/AppData/LocalLow/DefaultCompany/工程名";
        public static string PresistentDataPathForAndroid = "/mnt/sdcard/Android/data/包名/files";

2014-9-24日

有时候我们从Assert Stroe 导入一个包以后，下次创建工程可以再下面看到

这些目录是在 ： C:\Users\Administrator\AppData\Roaming\Unity\Asset Store 之下

二、序列化与反序列化

[Serializable]
public class CategoryBean {

   public string Name;
   static string FileName
   {
       get
       {
          return Application.persistentDataPath + "/category.dat";
       }
   } 

   public static void Load() {
       Global.Category = new CategoryBean();
       if (File.Exists(FileName))
       {
           try
           {
               using (FileStream fs = new FileStream(FileName, FileMode.Open, FileAccess.Read))
               {
                   BinaryFormatter b = new BinaryFormatter();
                   Global.Category = (CategoryBean)b.Deserialize(fs);
               }
           }
           catch (Exception ex)
           {
               Debuger.Log("Globals.load occurs an error:" + ex);
           }
       }
       else{
           Debuger.Log("Local file is null");
       }
   }

   public static void Save() {
       if (Global.Category == null) return;

       try
       {
           using (FileStream fs = new FileStream(FileName, FileMode.Create, FileAccess.Write))
           {
               BinaryFormatter b = new BinaryFormatter();
               b.Serialize(fs, Global.Category);
           }
       }
       catch (Exception ex)
       {
           Debuger.Log("Globals.Save occurs an error:" + ex);
       }
   }
}

PS:

1）不能序列化类的静态字段，也不能序列静态类、抽象类和密封类。C#序列化标记只能对实例字段序列号或反序列化。
2）子类可以被序列化或反序列化。但子类的的静态字段仍然遵循1）点。
3）作为其他类中一个字段的类，如果不是静态类，可以被序列化或反序列化，被序列化的类仍然遵循1）。

public class Test : MonoBehaviour
{

    public static List<Ser1> Ser1List = new List<Ser1>();
    public static string PersistentFileName
    {
        get
        {
            return Application.persistentDataPath + "/" + "TEST" + ".dat";
        }
    }

    void OnGUI() {
        if (GUI.Button(new Rect(, , , ), "SAVE")) {
            Ser1.SaveInSerializable();
        }
        if (GUI.Button(new Rect(, , , ), "LOAD")){
            Ser1.LoadFromSerializable();
            Debug.Log(Ser1.initstring);
        }
        if (GUI.Button(new Rect(, , , ), "CHANGE"))
        {
            Ser1.initstring = "inittest";
            Ser1List.Add(new Ser1() { Name = "test1" });
            Ser1List.Add(new Ser1() { Name = "test2" });
            Ser1List.Add(new Ser1() { Name = "test3" });
        }
    }
}
[Serializable]
public class Ser1
{
    public static string initstring = string.Empty;

    public string Name;

    public static void LoadFromSerializable()
    {
        try
        {
            if (File.Exists(Test.PersistentFileName))
            {
                using (FileStream fs = new FileStream(Test.PersistentFileName, FileMode.Open, FileAccess.Read))
                {
                    BinaryFormatter b = new BinaryFormatter();
                    Test.Ser1List =  (List<Ser1>)b.Deserialize(fs);
                }
            }
        }
        catch (Exception ex)
        {
            //Debuger.Log("Globals.load occurs an error:" + ex);
            throw new Exception("Globals.load occurs an error:" + ex);
        }
    }

    public static void SaveInSerializable( )
    {
        try
        {
            using (FileStream fs = new FileStream(Test.PersistentFileName, FileMode.Create, FileAccess.Write))
            {
                BinaryFormatter b = new BinaryFormatter();
                b.Serialize(fs, Test.Ser1List);
            }
        }
        catch (Exception ex)
        {
            Debuger.Log("Globals.Save occurs an error:" + ex);
        }
    }

}

三、嵌套序列化测试通过

public class Test : MonoBehaviour {

    void Awake()
    {
        MyPerson.Load();

        foreach (MyPerson item in Global.MyPersonArray)
        {
            Debug.Log(item.name);
            foreach (Attribute item1 in item.list)
            {
                Debug.Log(item1.name);
            }
        }
    }
    void OnApplicationQuit()
    {
        MyPerson.Save();
    }
}
[Serializable]
public class MyPerson
{
    public string name;

    public List<Attribute> list = new List<Attribute>();

    public MyPerson()
    {
        name = "test";
        list.Add(new Attribute());
        list.Add(new Attribute());
    }

    public static string file = Application.persistentDataPath + "/test.dat";

    public static void Load()
    {
        Global.MyPersonArray = new List<MyPerson>();
        Global.MyPersonArray.Add(new MyPerson());
        Global.MyPersonArray.Add(new MyPerson());

        if (File.Exists(file))
        {
            try
            {
                using (FileStream fs = new FileStream(file, FileMode.Open, FileAccess.Read))
                {
                    BinaryFormatter b = new BinaryFormatter();
                    Global.MyPersonArray = (List<MyPerson>)b.Deserialize(fs);
                }
            }
            catch (Exception ex)
            {
                Debuger.Log("Globals.load occurs an error:" + ex);
            }
        }
        else
        {
            Debuger.Log("Local file is null");
        }
    }

    public static void Save()
    {

        foreach (MyPerson item in Global.MyPersonArray)
        {
            item.name = "test5";
            foreach (Attribute item1 in item.list)
            {
                item1.name = "Attribute5";
            }
        }

        try
        {
            using (FileStream fs = new FileStream(file, FileMode.Create, FileAccess.Write))
            {
                BinaryFormatter b = new BinaryFormatter();
                b.Serialize(fs, Global.MyPersonArray);
            }
        }
        catch (Exception ex)
        {
            Debuger.Log("Globals.Save occurs an error:" + ex);
        }
    }

}

[Serializable]
public class Attribute
{
    public string name;

    public Attribute()
    {
        name = "Attribute";
    }
}

四、动态生成赋值

public class Test : MonoBehaviour {

    public Test1 tmp;
    void Awake() {
        Test1 create =  Instantiate(tmp) as Test1;
        create.test = new GameObject("haha");
    }
}
public class Test1 : MonoBehaviour {

    public GameObject test;
    void Awake() {
        //wait test != null
        StartCoroutine(Test());
    }
    IEnumerator Test() {
        while (test==null)
        {
            Debug.Log("now test = = null");
            yield return ;
        }
        Debug.Log("now test ! = null"+test.name);
    }
}

五、使用类来作为Dictionary的key

http://social.msdn.microsoft.com/forums/windowsapps/zh-cn/0b3ab162-7e2a-401e-842d-3e5dc93de228/c-dictionarytt-contains

public class Test : MonoBehaviour {

    void Awake(){
        Dictionary<Model_Links, int> usedLinks = new Dictionary<Model_Links, int>(new MyComparer());
        usedLinks.Add(new Model_Links() { id = , title = "title1", body = "boby1" }, );
        usedLinks.Add(new Model_Links() { id = , title = "title2", body = "boby2" }, );
        usedLinks.Add(new Model_Links() { id = , title = "title3", body = "boby3" }, );
        usedLinks.Add(new Model_Links() { id = , title = "title4", body = "boby4" }, );

        //对比的类
        Model_Links test = new Model_Links() { id = , title = "title2", body = "boby1" };

        //测试是否存在
        Debug.Log(usedLinks.ContainsKey(test));
    }
}
public partial class Model_Links
{
    public int id { get; set; }
    public string title { get; set; }
    public string body { get; set; }
}

public class MyComparer : IEqualityComparer<Model_Links>
{
    public bool Equals(Model_Links x, Model_Links y)
    {
        return x.id == y.id && x.title == y.title && x.body == y.body;
    }

    public int GetHashCode(Model_Links obj)
    {
        return obj.id.GetHashCode() ^ obj.title.GetHashCode() ^ obj.body.GetHashCode();
    }
}

六、文件流操作提醒

if (!File.Exists(Global.VersionLogFileName)) {
    //Debuger.Log("first time");
    FileStream fs =  File.Create(Global.VersionLogFileName);
    //这里要记得关闭这个流，不然的话如果之后由写入操作会引发IO 异常
    fs.Close();
    return null;
}

七、typeof(T) 与 GetType()的区别

简明表达区别： 
同点：两者都是返回类型Type 
异同：typeof(T)，该T，就是一个类型如:class A{},定义了一个A类，如果想获取该A的Type值，就直接typeof(A)即可。 
而GetType()是这样的，class A{},定义了一个A类，定对A类实例化成一个a: A a = new A();这时如果想获取该a的Type值，就直接用a的.GetType()即可。如：a.GetType(); 
所以用GetType之前必须实例化

八、

　　

/// <summary>
/// 判断输入的字符串是否只包含数字和英文字母
/// </summary>
/// <param name="input"></param>
/// <returns></returns>
public static bool IsNumAndEnCh(string input)
{
	string pattern = @"^[A-Za-z0-9]+$";
	Regex regex = new Regex(pattern);
	return regex.IsMatch(input);
}