Unity3D常用代码总结

 

1 GUI汇总

 

function OnGUI() {

  GUI.Label(Rect(1,1,100,20),"I'm a Label"); //1

  GUI.Box(Rect(1,21,100,20),"I'm a Box"); //2

  GUI.Button(Rect(1,41,100,20),"I'm a Button"); //3

  GUI.RepeatButton(Rect(1,61,120,20),"I'm a RepeatButton"); //4

  GUI.TextField(Rect(1,81,100,20),"I'm a TextFielld"); //5

  GUI.TextArea(Rect(1,101,100,40),"I'm a TextArea,\nMultiline"); //6

  GUI.Toggle(Rect(1,141,120,20),true,"I'm a Toggle true"); //7

  GUI.Toggle(Rect(1,161,120,20),false,"I'm a Toggle false"); //8

  GUI.Toolbar(Rect(1,181,160,20),-1,["Toolbar","Tool2","Tool3"); //9

  GUI.SelectionGrid(Rect(1,201,190,20),2,["Selection","Grid","select3"],3); //10

  GUI.HorizontalSlider(Rect(1,221,180,20),3.0,0,10.0); //11

  GUI.VerticalScrollbar(Rect(1,241,20,100),3.0,1,0.0,10.0); //12

 

  //13

  GUI.BeginScrollView (Rect (200,10,100,100),Vector2.zero, Rect (0, 0, 220, 200));

  GUI.Label(Rect(0,0,100,20),"I'm a Label");

  GUI.EndScrollView();

  //14

    GUI.Window(0,Rect(200,129,100,100),funcwin,"window");

}

 

function funcwin(windowID:int)

 {

  GUI.DragWindow(Rect(0,0,10000,2000));

 }

 

 

 

2 JS调用DLL

 

import System;

import System.Runtime.InteropServices;

@DllImport("user32.dll")

public static function MessageBox(Hwnd : int,text : String,Caption : String,iType : int) : int {};

 

function Start()

{

        MessageBox(0, "API Message Box", "Win32 API", 64) ;

}

function Update () {

}

3 物体标签

var target : Transform;  // Object that this label should follow

var offset = Vector3.up;    // Units in world space to offset; 1 unit above object by default

var clampToScreen = false;  // If true, label will be visible even if object is off screen

var clampBorderSize = .05;  // How much viewport space to leave at the borders when a label is being clamped

var useMainCamera = true;   // Use the camera tagged MainCamera

var cameraToUse : Camera;   // Only use this if useMainCamera is false

private var cam : Camera;

private var thisTransform : Transform;

private var camTransform : Transform;

function Start () {

    thisTransform = transform;

    if (useMainCamera)

        cam = Camera.main;

    else

        cam = cameraToUse;

    camTransform = cam.transform;

}

function Update () {

    if (clampToScreen) {

        var relativePosition = camTransform.InverseTransformPoint(target.position);

        relativePosition.z = Mathf.Max(relativePosition.z, 1.0);

        thisTransform.position = cam.WorldToViewportPoint(camTransform.TransformPoint(relativePosition + offset));

        thisTransform.position = Vector3(Mathf.Clamp(thisTransform.position.x, clampBorderSize, 1.0-clampBorderSize),

                                         Mathf.Clamp(thisTransform.position.y, clampBorderSize, 1.0-clampBorderSize),

                                         thisTransform.position.z);

    }

    else {

        thisTransform.position = cam.WorldToViewportPoint(target.position + offset);

    }

}

@script RequireComponent(GUIText)

4 unity3d读取保存xml文件

　　

        import System;

　　import System.Xml;

　　import System.Xml.Serialization;

　　import System.IO;

　　import System.Text;

　　

　　class CeshiData{

　　 var Ceshi1 : String;

　　 var Ceshi2 : String;

　　 var Ceshi3 : float;

　　 var Ceshi4 : int;

　　}

　　

　　 class UserData

　　{

　　 public var _iUser : CeshiData = new CeshiData();

　　 function UserData() { }

　　}

　　

　　private var c1 : String;

　　private var c2 : String;

　　private var c3 : float;

　　private var c4 : int;

　　private var _FileLocation : String;

　　private var _FileName : String = "CeshiData.xml";

　　

　　var myData : UserData[];

　　private var tempData : UserData = new UserData();

　　

　　var i : int = 0;

var GUISkin1 : GUISkin;

　　var ShowData : int = 0;

　　function Awake(){

　　 _Filelocation＝Application.dataPath;

　　}

　　

　　function Start(){

　　 FirstSave();

　　}

　　

　　function FirstSave(){//初始化XML

　　 tempData._iUser.Ceshi1 = "?";

　　 tempData._iUser.Ceshi2 = "?";

　　 tempData._iUser.Ceshi3 = 0;

　　 tempData._iUser.Ceshi4 = 0;

　　 var writer : StreamWriter;

　　 var t : FileInfo = new FileInfo(_FileLocation+"/"+ _FileName);

　　 if(!t.Exists)

　　 {

　　 writer = t.CreateText();

　　 _data = SerializeObject(tempData);

　　 for(i=0;i<10;i++){

　　 writer.WriteLine(_data);

　　 }

　　 writer.Close();

　　 }

　　

　　}

function Save(sc1 : String,sc2 : String,sc3 : float,sc4 : int){//保存数据到指定的XMl里

　　

　　 tempData._iUser.Ceshi1 = sc1;

　　 tempData._iUser.Ceshi2 = sc2;

　　 tempData._iUser.Ceshi3 = sc3;

　　 tempData._iUser.Ceshi4 = sc4;

　　

　　 var writer : StreamWriter;

　　 var t : FileInfo = new FileInfo(_FileLocation+"/"+ _FileName);

　　 t.Delete();

　　 writer = t.CreateText();

　　 _data = SerializeObject(tempData);

　　 for(i=0;i<10;i++){

　　 writer.WriteLine(_data);

　　 }

　　 writer.Close();

　　

　　}

　　

　　function Load(){//读取保存在XML里的数据

　　 var r : StreamReader = File.OpenText(_FileLocation+"/"+ _FileName);

　　 var _info : String ;

　　 for(i=0;i<10;i++){

　　 _info = r.ReadLine();

　　 _data＝_info;

　　 myData[i] = DeserializeObject(_data);

　　 }

　　 r.Close();

　　}

function OnGUI() {

　　 GUI.skin = GUISkin1;

　　 if(GUI.Button(Rect(0,0,100,40),"save")){

　　 Save("ceshi1","ceshi2",1.23,50);//要显示中文需设定中文字体

　　 }

　　 if(GUI.Button(Rect(200,0,100,40),"load")){

　　 Load();

　　 ShowData = 1;

　　 }

　　 if(ShowData == 1){

　　 GUI.Label(Rect(170,170+53*0,150,50),myData[0]._iUser.Ceshi1);

　　 GUI.Label(Rect(370,170+53*0,150,50),myData[0]._iUser.Ceshi2);

　　 GUI.Label(Rect(550,170+53*0,150,50),myData[0]._iUser.Ceshi3 + "");

　　 GUI.Label(Rect(760,170+53*0,150,50),myData[0]._iUser.Ceshi4 + "");

　　

　　 GUI.Label(Rect(170,170+53*1,150,50),myData[1]._iUser.Ceshi1);

　　

　　 GUI.Label(Rect(370,170+53*2,150,50),myData[2]._iUser.Ceshi2);

　　

　　 GUI.Label(Rect(550,170+53*3,150,50),myData[3]._iUser.Ceshi3 + "");

　　

　　 GUI.Label(Rect(760,170+53*4,150,50),myData[4]._iUser.Ceshi4 + "");

　　 }

　　}

　　

　　//================================================================================

function UTF8ByteArrayToString(characters : byte[] )

　　{

　　 var encoding : UTF8Encoding = new UTF8Encoding();

　　 var constructedString : String = encoding.GetString(characters);

　　 return (constructedString);

　　}

　　

　　//byte[] StringToUTF8ByteArray(string pXmlString)

　　function StringToUTF8ByteArray(pXmlString : String)

　　{

　　 var encoding : UTF8Encoding = new UTF8Encoding();

　　 var byteArray : byte[] = encoding.GetBytes(pXmlString);

　　 return byteArray;

　　}

　　

　　 // Here we serialize our UserData object of myData

　　 //string SerializeObject(object pObject)

　　function SerializeObject(pObject : Object)

　　{

　　 var XmlizedString : String = null;

　　 var memoryStream : MemoryStream = new MemoryStream();

　　 var xs : XmlSerializer = new XmlSerializer(typeof(UserData));

　　 var xmlTextWriter : XmlTextWriter = new XmlTextWriter(memoryStream, Encoding.UTF8);

　　 xs.Serialize(xmlTextWriter, pObject);

　　 memoryStream = xmlTextWriter.BaseStream; // (MemoryStream)

　　 XmlizedString = UTF8ByteArrayToString(memoryStream.ToArray());

　　 return XmlizedString;

　　}

// Here we deserialize it back into its original form

　　 //object DeserializeObject(string pXmlizedString)

　　function DeserializeObject(pXmlizedString : String)

　　{

　　 var xs : XmlSerializer = new XmlSerializer(typeof(UserData));

　　 var memoryStream : MemoryStream = new MemoryStream(StringToUTF8ByteArray(pXmlizedString));

　　 var xmlTextWriter : XmlTextWriter = new XmlTextWriter(memoryStream, Encoding.UTF8);

　　 return xs.Deserialize(memoryStream);

　　}

5 单击物体弹出对话框

 

    static var WindowSwitch : boolean = false; 

    var mySkin : GUISkin; 

    var windowRect = Rect (200, 80, 240, 100); 

    function OnGUI () 

    { 

       if(WindowSwitch ==  true) 

       { 

          GUI.skin = mySkin; 

            windowRect = GUI.Window (0, windowRect, WindowContain, "测试视窗"); 

      } 

   } 

   function WindowContain (windowID : int) 

   { 

       if (GUI.Button (Rect (70,40,100,20), "关闭视窗")) 

      { 

         WindowSwitch = false; 

      } 

   } 

function OnMouseEnter () 

   { 

       renderer.material.color = Color.red; 

   } 

   function OnMouseDown () 

   { 

      Func_GUIWindow.WindowSwitch = true; 

   } 

   function OnMouseExit () 

   { 

      renderer.material.color = Color.white; 

   } 

6 读取txt文本

using UnityEngine;

using System.Collections;

using System.IO;

using System.Text;

public class ReadTxt : MonoBehaviour {

string path = "D:\\txtName.txt";

StreamReader smRead = new StreamReader(path,

Encoding.Default); //设置路径

string line;

void Update () {

if ((line = smRead.ReadLine()) != null) {

string[] arrStr = line.Split('|'); //分割符 “|”

id1 = arrStr[0].ToString();

name = arrStr[1].ToString();

sfz = arrStr[2].ToString();

}

}

}

7 截屏

  function OnMouseDown() { 

   Application.CaptureScreenshot("Screenshot.png"); 

 }

8 下拉菜单

using UnityEngine;

using System.Collections;

using System.Collections.Generic;

using System.Text.RegularExpressions;

public class DropDownList : MonoBehaviour

{

    private Rect DropDownRect;          // Size and Location for drop down

    private Transform currentRoot;      // selected object transform

    private Vector2 ListScrollPos;      // scroll list position

    public string selectedItemCaption;  // name of selected item

    private string lastCaption;         // last selected item

    private int guiWidth;               // width of drop list

    private int guiHight;               // hight of drop list

    private bool textChanged;           // if text in text box has changed look for item

    private bool clearDropList;         // clear text box

    public bool DropdownVisible;        // show drop down list

    public bool updateInfo;             // update info window

   

    public Transform root;              // top of the Hierarchy

    public GUISkin dropSkin;            // GUISkin for drop down list

    public int itemtSelected;           // index of selected item

    public bool targetChange;           // text in text box was changed, update list

    public class GuiListItem        //The class that contains our list items

    {

        public string Name;         // name of the item

        public int GuiStyle;        // current style to use

        public int UnSelectedStyle; // unselected GUI style

        public int SelectedStyle;   // selected GUI style

        public int Depth;           // depth in the Hierarchy

        public bool Selected;       // if the item is selected

        public bool ToggleChildren; // show child objects in list

       // constructors

        public GuiListItem(bool mSelected, string mName, int iGuiStyle, bool childrenOn, int depth)

        {

            Selected = mSelected;

            Name = mName;

            GuiStyle = iGuiStyle;

            ToggleChildren = childrenOn;

            Depth = depth;

            UnSelectedStyle = 0;

            SelectedStyle = 0;

        }

        public GuiListItem(bool mSelected, string mName)

        {

            Selected = mSelected;

            Name = mName;

            GuiStyle = 0;

            ToggleChildren = true;

            Depth = 0;

            UnSelectedStyle = 0;

            SelectedStyle = 0;

        }

        public GuiListItem(string mName)

        {

            Selected = false;

            Name = mName;

            GuiStyle = 0;

            ToggleChildren = true;

            Depth = 0;

            UnSelectedStyle = 0;

            SelectedStyle = 0;

        }

// Accessors

        public void enable()// don't show in list

        {

            Selected = true;

        }

        public void disable()// show in list

        {

            Selected = false;

        }

        public void setStlye(int stlye)

        {

            GuiStyle = stlye;

        }

        public void setToggleChildren(bool childrenOn)

        {

            ToggleChildren = childrenOn;

        }

        public void setDepth(int depth)

        {

            Depth = depth;

        }

        public void SetStyles(int unSelected, int selected)

        {

            UnSelectedStyle = unSelected;

            SelectedStyle = selected;

        }

    }

//Declare our list of stuff

    public List<GuiListItem> MyListOfStuff;

 

    // Initialization

    void Start()

    {

        guiWidth = 400;

        guiHight = 28;

        // Manually position our list, because the dropdown will appear over other controls

        DropDownRect = new Rect(10, 10, guiWidth, guiHight);

        DropdownVisible = false;

        itemtSelected = -1;

        targetChange = false;

        lastCaption = selectedItemCaption = "Select a Part...";

 

        if (!root)

            root = gameObject.transform;

 

        MyListOfStuff = new List<GuiListItem>(); //Initialize our list of stuff

        // fill the list

        BuildList(root);

        // set GUI for each item in list

        SetupGUISetting();

        // fill the list

        FillList(root);

    }

 void OnGUI()

    {

        //Show the dropdown list if required (make sure any controls that should appear behind the list are before this block)

        if (DropdownVisible)

        {

            GUI.SetNextControlName("ScrollView");

            GUILayout.BeginArea(new Rect(DropDownRect.xMin, DropDownRect.yMin + DropDownRect.height, guiWidth, Screen.height * .25f), "", "box");

            ListScrollPos = GUILayout.BeginScrollView(ListScrollPos, dropSkin.scrollView);

            GUILayout.BeginVertical(GUILayout.Width(120));

 

            for (int i = 0; i < MyListOfStuff.Count; i++)

            {

                if (MyListOfStuff[i].Selected && GUILayout.Button(MyListOfStuff[i].Name, dropSkin.customStyles[MyListOfStuff[i].GuiStyle]))

                {

                    HandleSelectedButton(i);

                }

            }

            GUILayout.EndVertical();

            GUILayout.EndScrollView();

            GUILayout.EndArea();

        }

        //Draw the dropdown control

        GUILayout.BeginArea(DropDownRect, "", "box");

        GUILayout.BeginHorizontal();

        string ButtonText = (DropdownVisible) ? "<<" : ">>";

        DropdownVisible = GUILayout.Toggle(DropdownVisible, ButtonText, "button", GUILayout.Width(32), GUILayout.Height(20));

        GUI.SetNextControlName("PartSelect");

        selectedItemCaption = GUILayout.TextField(selectedItemCaption);

        clearDropList = GUILayout.Toggle(clearDropList, "Clear", "button", GUILayout.Width(40), GUILayout.Height(20));

        GUILayout.EndHorizontal();

        GUILayout.EndArea();

    }

 void Update()

    {

        //check if text box info changed

        if (selectedItemCaption != lastCaption)

        {

            textChanged = true;

        }

 

        // if text box info changed look for part matching text

        if (textChanged)

        {

            lastCaption = selectedItemCaption;

            textChanged = false;

            // go though list to find item

            for (int i = 0; i < MyListOfStuff.Count; ++i)

            {

                if (MyListOfStuff[i].Name.StartsWith(selectedItemCaption, System.StringComparison.CurrentCultureIgnoreCase))

                {

 

                    MyListOfStuff[i].enable();

                    MyListOfStuff[i].ToggleChildren = false;

                    MyListOfStuff[i].GuiStyle = MyListOfStuff[i].UnSelectedStyle;

                }

                else

                {

                    MyListOfStuff[i].disable();

                    MyListOfStuff[i].ToggleChildren = false;

                    MyListOfStuff[i].GuiStyle = MyListOfStuff[i].UnSelectedStyle;

                }

            }

 for (int i = 0; i < MyListOfStuff.Count; ++i)

            {

                // check list for item

                int test = string.Compare(selectedItemCaption, MyListOfStuff[i].Name, true);

                if (test == 0)

                {

                    itemtSelected = i;

                    targetChange = true;

                    break; // stop looking when found

                }

            }

        }

 

        // reset message if list closed and text box is empty

        if (selectedItemCaption == "" && !DropdownVisible)

        {

            lastCaption = selectedItemCaption = "Select a Part...";

            ClearList(root);

            FillList(root);

        }

 

        // if Clear button pushed

        if (clearDropList)

        {

            clearDropList = false;

            selectedItemCaption = "";

        }

    }

public void HandleSelectedButton(int selection)

    {

        // do the stuff, camera etc

        itemtSelected = selection;//Set the index for our currently selected item

        updateInfo = true;

        selectedItemCaption = MyListOfStuff[selection].Name;

        currentRoot = GameObject.Find(MyListOfStuff[itemtSelected].Name).transform;

 

        // toggle item show child

        MyListOfStuff[selection].ToggleChildren = !MyListOfStuff[selection].ToggleChildren;

 

        lastCaption = selectedItemCaption;

        // fill my drop down list with the children of the current selected object

        if (!MyListOfStuff[selection].ToggleChildren)

        {

            if (currentRoot.childCount > 0)

            {

                MyListOfStuff[selection].GuiStyle = MyListOfStuff[selection].SelectedStyle;

            }

            FillList(currentRoot);

        }

        else

        {

            if (currentRoot.childCount > 0)

            {

                MyListOfStuff[selection].GuiStyle = MyListOfStuff[selection].UnSelectedStyle;

            }

            ClearList(currentRoot);

        }

        targetChange = true;

 

 

    }

// show only items that are the root and its children

    public void FillList(Transform root)

    {

        foreach (Transform child in root)

        {

            for (int i = 0; i < MyListOfStuff.Count; ++i)

            {

                if (MyListOfStuff[i].Name == child.name)

                {

                    MyListOfStuff[i].enable();

                    MyListOfStuff[i].ToggleChildren = false;

                    MyListOfStuff[i].GuiStyle = MyListOfStuff[i].UnSelectedStyle;

                }

            }

        }

    }

    // turn off children objects

    public void ClearList(Transform root)

    {

        //Debug.Log(root.name);

        Transform[] childs = root.GetComponentsInChildren<Transform>();

        foreach (Transform child in childs)

        {

            for (int i = 0; i < MyListOfStuff.Count; ++i)

            {

                if (MyListOfStuff[i].Name == child.name && MyListOfStuff[i].Name != root.name)

                {

                    MyListOfStuff[i].disable();

                    MyListOfStuff[i].ToggleChildren = false;

                    MyListOfStuff[i].GuiStyle = MyListOfStuff[i].UnSelectedStyle;

                }

            }

        }

    }

 // recursively build the list so the hierarchy is in tact

    void BuildList(Transform root)

    {

        // for every object in the thing we are viewing

        foreach (Transform child in root)

        {

            // add the item

            MyListOfStuff.Add(new GuiListItem(false, child.name));

            // if it has children add the children

            if (child.childCount > 0)

            {

                BuildList(child);

            }

        }

    }

 

    public void ResetDropDownList()

    {

        selectedItemCaption = "";

        ClearList(root);

        FillList(root);

    }

 

    public string RemoveNumbers(string key)

    {

        return Regex.Replace(key, @"\d", "");

    }

 // sets the drop list elements to use the correct GUI skin custom style

    private void SetupGUISetting()

    {

        // set drop down list gui

        int depth = 0;

        // check all the parts for hierarchy depth

        for (int i = 0; i < MyListOfStuff.Count; ++i)

        {

            GameObject currentObject = GameObject.Find(MyListOfStuff[i].Name);

            Transform currentTransform = currentObject.transform;

            depth = 0;

 

            if (currentObject.transform.parent == root) // if under root

            {

                if (currentObject.transform.childCount > 0)

                {

                    MyListOfStuff[i].GuiStyle = depth;

                    MyListOfStuff[i].UnSelectedStyle = depth;

                    MyListOfStuff[i].SelectedStyle = depth + 2;

                }

                else

                {

                    MyListOfStuff[i].GuiStyle = depth + 1;

                    MyListOfStuff[i].UnSelectedStyle = depth + 1;

                    MyListOfStuff[i].SelectedStyle = depth + 1;

                }

 

                MyListOfStuff[i].Depth = depth;

 

            }

 else // if not under root find depth

            {

                while (currentTransform.parent != root)

                {

                    ++depth;

                    currentTransform = currentTransform.parent;

                }

                MyListOfStuff[i].Depth = depth;

                // set gui basied on depth

                if (currentObject.transform.childCount > 0)

                {

                    MyListOfStuff[i].GuiStyle = depth * 3;

                    MyListOfStuff[i].UnSelectedStyle = depth * 3;

                    MyListOfStuff[i].SelectedStyle = (depth * 3) + 2;

                }

                else

                {

                    MyListOfStuff[i].GuiStyle = depth * 3 + 1;

                    MyListOfStuff[i].UnSelectedStyle = depth * 3 + 1;

                    MyListOfStuff[i].SelectedStyle = depth * 3 + 1;

                }

            }

        }

    }

}