topical media & game development
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game-xna-intro-XnaBreakout-Helpers-FileHelper.cs / cs



  // Project: XnaBreakout, File: FileHelper.cs
  // Namespace: XnaBreakout.Helpers, Class: FileHelper
  // Path: C:\code\XnaBreakout\Helpers, Author: Abi
  // Code lines: 137, Size of file: 4,13 KB
  // Creation date: 15.10.2006 09:08
  // Last modified: 22.10.2006 18:03
  // Generated with Commenter by abi.exDream.com
  
  #region Using directives
  using Microsoft.Xna.Framework;
  using Microsoft.Xna.Framework.Storage;
  using System;
  using System.Collections.Generic;
  using System.IO;
  using System.Text;
  using System.Threading;
  #endregion
  
  namespace XnaBreakout.Helpers
  {
<summary> File helper class to get text lines, number of text lines, etc. Update: Now also supports the XNA Storage classes :) </summary> public class FileHelper { #region LoadGameContentFile <summary> Load game content file, returns null if file was not found. </summary> <param name="relativeFilename">Relative filename</param> <returns>File stream</returns> public static FileStream LoadGameContentFile(string relativeFilename) { string fullPath = Path.Combine( StorageContainer.TitleLocation, relativeFilename); if (File.Exists(fullPath) == false) return null; else return File.Open(fullPath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite); } // LoadGameContentFile(relativeFilename) #endregion 

                  #region OpenOrCreateFileForCurrentPlayer
<summary> XNA user device, asks for the saving location on the Xbox360, theirfore remember this device for the time we run the game. </summary> static StorageDevice xnaUserDevice = null;
<summary> Xna user device </summary> <returns>Storage device</returns> public static StorageDevice XnaUserDevice { get { // Create if not created yet. if (xnaUserDevice == null) xnaUserDevice = StorageDevice.ShowStorageDeviceGuide(PlayerIndex.One); return xnaUserDevice; } // get } // XnaUserDevice
<summary> Open or create file for current player. Basically just creates a FileStream using the specified FileMode flag, but on the Xbox360 we have to ask the user first where he wants to. Basically used for the GameSettings and the Log class. </summary> <param name="filename">Filename</param> <param name="mode">Mode</param> <param name="access">Access</param> <returns>File stream</returns> public static FileStream OpenFileForCurrentPlayer( string filename, FileMode mode, FileAccess access) { // Open a storage container StorageContainer container = XnaUserDevice.OpenContainer("XnaRacer"); 

                          // Add the container path to our filename
                          string fullFilename = Path.Combine(container.Path, filename);
  
                          // Opens or creates the requested file
                          return new FileStream(
                                  fullFilename, mode, access, FileShare.ReadWrite);
                  } // OpenFileForCurrentPlayer(filename, mode, access)
      #endregion
  
                  #region Get text lines
<summary> Returns the number of text lines we got in a file. </summary> static public string[] GetLines(string filename) { try { StreamReader reader = new StreamReader( new FileStream(filename, FileMode.Open, FileAccess.Read), System.Text.Encoding.UTF8); // Generic version List<string> lines = new List<string>(); do { lines.Add(reader.ReadLine()); } while (reader.Peek() > -1); reader.Close(); return lines.ToArray(); } // try catch { // Failed to read, just return null! return null; } // catch } // GetLines(filename) #endregion 

                  #region Create text file
<summary> Create text file </summary> <param name="filename">Filename</param> <param name="textForFile">Text for file</param> <exception cref="IOException"> Will be thrown if file already exists. </exception> public static void CreateTextFile( string filename, string textForFile, Encoding fileEncoding) { StreamWriter textWriter = new StreamWriter( new FileStream(filename, FileMode.Create, FileAccess.Write), fileEncoding);//System.Text.Encoding.UTF8); 

                          string[] textLines = StringHelper.SplitMultilineText(textForFile);
                          foreach (string line in textLines)
                                  textWriter.WriteLine(line);
                          textWriter.Close();
                  } // CreateTextFile(filename, textForFile)
                  #endregion
          }        // class FileHelper
  } // namespace XnaBreakout.Helpers
[] readme course(s) preface I 1 2 II 3 4 III 5 6 7 IV 8 9 10 V 11 12 afterthought(s) appendix reference(s) example(s) resource(s) _

(C) Æliens 20/2/2008

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