From 42db6d83ae02fc046aa4229c8c90e9fd793d5849 Mon Sep 17 00:00:00 2001
From: gered <gered@blarg.ca>
Date: Thu, 15 Aug 2013 18:41:41 -0400
Subject: [PATCH] add SDL filesystem implementation

---
 .../Blarg.GameFramework.SDL2.csproj           |  2 +
 Blarg.GameFramework.SDL2/IO/SDLFileSystem.cs  | 38 +++++++++++++++++++
 2 files changed, 40 insertions(+)
 create mode 100644 Blarg.GameFramework.SDL2/IO/SDLFileSystem.cs

diff --git a/Blarg.GameFramework.SDL2/Blarg.GameFramework.SDL2.csproj b/Blarg.GameFramework.SDL2/Blarg.GameFramework.SDL2.csproj
index 5996778..030733d 100644
--- a/Blarg.GameFramework.SDL2/Blarg.GameFramework.SDL2.csproj
+++ b/Blarg.GameFramework.SDL2/Blarg.GameFramework.SDL2.csproj
@@ -46,6 +46,7 @@
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="Input\SDLKeyboard.cs" />
     <Compile Include="Input\SDLMouse.cs" />
+    <Compile Include="IO\SDLFileSystem.cs" />
   </ItemGroup>
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
   <ItemGroup>
@@ -56,5 +57,6 @@
   </ItemGroup>
   <ItemGroup>
     <Folder Include="Input\" />
+    <Folder Include="IO\" />
   </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/Blarg.GameFramework.SDL2/IO/SDLFileSystem.cs b/Blarg.GameFramework.SDL2/IO/SDLFileSystem.cs
new file mode 100644
index 0000000..bd9dd06
--- /dev/null
+++ b/Blarg.GameFramework.SDL2/IO/SDLFileSystem.cs
@@ -0,0 +1,38 @@
+using System;
+using System.IO;
+using System.Reflection;
+using SDL2;
+
+namespace Blarg.GameFramework.IO
+{
+	public class SDLFileSystem : IFileSystem
+	{
+		string _assetsPath;
+
+		public SDLFileSystem()
+		{
+			string executablePath = Path.GetDirectoryName(Assembly.GetEntryAssembly().Location);
+			_assetsPath = Path.Combine(executablePath, "assets");
+		}
+
+		public Stream Open(string filename)
+		{
+			string realPath = TranslateFilePath(filename);
+			return new FileStream(realPath, FileMode.Open);
+		}
+
+		public string TranslateFilePath(string path)
+		{
+			if (path.StartsWith("assets://"))
+				return Path.Combine(_assetsPath, path.Substring(9));
+			else
+				return path;
+		}
+
+		public string AssetsPath
+		{
+			get { return _assetsPath; }
+		}
+	}
+}
+