Save and Load Info to XML
This script will allow you to save and load data about an object into an XML file. To use, add an empty game object to the scene and attache the script to the object. Change the Player on that game object property to the item you wish to save properties about. When you start the scene, you will see a save and load button, these allow you to save and load the information from the xml file. The guts of what you save is located in the UserData class, change this as you see fit to allow you to save what you want. You will also need to update the save method to store the information that you are looking to store. At the moment, the code is only setup to store the postition of the object in world space.
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170 using UnityEngine;using System.Collections;using System.Xml;using System.Xml.Serialization;using System.IO;using System.Text;public class_GameSaveLoad: MonoBehaviour {// An example where the encoding can be found is at//http://www.eggheadcafe.com/articles/system.xml.xmlserialization.asp// We will just use the KISS method and cheat a little and use// the examples from the web page since they are fully described// This is our localprivate membersRect _Save, _Load, _SaveMSG, _LoadMSG;bool _ShouldSave, _ShouldLoad,_SwitchSave,_SwitchLoad;string _FileLocation,_FileName;public GameObject _Player;UserData myData;string _PlayerName;string _data;Vector3 VPosition;// When the EGO isinstansiated the Start will trigger// so we setup ourinitial values for our local membersvoid Start () {// We setup ourrectangles for our messages_Save=new Rect(10,80,100,20);_Load=new Rect(10,100,100,20);_SaveMSG=new Rect(10,120,400,40);_LoadMSG=new Rect(10,140,400,40);// Where we want to save and load to and from_FileLocation=Application.dataPath;_FileName="SaveData.xml";// for now, lets just set the name to Joe Schmoe_PlayerName = "Joe Schmoe";// we need soemthing to store the information intomyData=new UserData();}void Update () {}void OnGUI(){//***************************************************// Loading The Player...//**************************************************if (GUI.Button(_Load,"Load")) {GUI.Label(_LoadMSG,"Loading from: "+_FileLocation);// Load our UserData into myDataLoadXML();if(_data.ToString() != ""){// notice how I use a reference to type (UserData) here, you need this// so that the returned object is converted into the correct typemyData = (UserData)DeserializeObject(_data);// set the playersposition to the data we loadedVPosition=new Vector3(myData._iUser.x,myData._iUser.y,myData._iUser.z);_Player.transform.position=VPosition;// just a way to show that we loaded in okDebug.Log(myData._iUser.name);}}//***************************************************// Saving The Player...//**************************************************if (GUI.Button(_Save,"Save")) {GUI.Label(_SaveMSG,"Saving to: "+_FileLocation);myData._iUser.x=_Player.transform.position.x;myData._iUser.y=_Player.transform.position.y;myData._iUser.z=_Player.transform.position.z;myData._iUser.name=_PlayerName;// Time to creat our XML!_data = SerializeObject(myData);// This is the final resulting XML from the serialization processCreateXML();Debug.Log(_data);} }/* The followingmetods came from the referenced URL */string UTF8ByteArrayToString(byte[] characters){UTF8Encoding encoding = new UTF8Encoding();string constructedString = encoding.GetString(characters);return (constructedString);}byte[] StringToUTF8ByteArray( string pXmlString){UTF8Encoding encoding = new UTF8Encoding();byte[] byteArray = encoding.GetBytes(pXmlString);return byteArray;}// Here we serialize our UserData object of myDatastring SerializeObject(object pObject){string XmlizedString = null;MemoryStream memoryStream = new MemoryStream();XmlSerializer xs = new XmlSerializer(typeof(UserData));XmlTextWriter xmlTextWriter = new XmlTextWriter(memoryStream, Encoding.UTF8);xs.Serialize(xmlTextWriter,pObject);memoryStream = (MemoryStream)xmlTextWriter.BaseStream;XmlizedString = UTF8ByteArrayToString(memoryStream.ToArray());return XmlizedString;}// Here we deserialize it back into its original formobject DeserializeObject(string pXmlizedString){XmlSerializer xs = new XmlSerializer(typeof(UserData));MemoryStream memoryStream = new MemoryStream(StringToUTF8ByteArray(pXmlizedString));XmlTextWriter xmlTextWriter = new XmlTextWriter(memoryStream, Encoding.UTF8);return xs.Deserialize(memoryStream);}// Finally our save and load methods for the file itselfvoid CreateXML(){StreamWriter writer;FileInfo t = new FileInfo(_FileLocation+"\\"+ _FileName);if(!t.Exists){writer = t.CreateText();}else{t.Delete();writer = t.CreateText();}writer.Write(_data);writer.Close();Debug.Log("File written.");}void LoadXML(){StreamReader r = File.OpenText(_FileLocation+"\\"+ _FileName);string _info = r.ReadToEnd();r.Close();_data=_info;Debug.Log("File Read");}}// UserData is our custom class that holds our defined objects we want to store in XML formatpublic class UserData{// We have to define a default instance of the structurepublic DemoData _iUser;// Default constructor doesn't really do anything at the momentpublic UserData() { }// Anything we want to store in the XML file, we define it herepublic struct DemoData{public float x;public float y;public float z;public string name;}}cs
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http://wiki.unity3d.com/index.php?title=Save_and_Load_from_XML
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