README + non-existent files don't cause crash

.gitignore

@@ -1,4 +1,5 @@
 *.obj
+*.dds
 .vscode
 .vs
 */bin

LibLunacy/FileManager.cs

@@ -5,8 +5,8 @@ public class FileManager
 	{
 		public string folderPath = string.Empty;
 
-		public Dictionary<string, IGFile> igfiles = new Dictionary<string, IGFile>();	//Actual IGFiles
-		public Dictionary<string, Stream> rawfiles = new Dictionary<string, Stream>();	//Raw data, includes files containing nothing but IGFiles
+		public Dictionary<string, IGFile?> igfiles = new Dictionary<string, IGFile?>();	//Actual IGFiles
+		public Dictionary<string, Stream?> rawfiles = new Dictionary<string, Stream?>();	//Raw data, includes files containing nothing but IGFiles
 
 		public bool isOld { get; private set; }		//if true, old filesystem, else new filesystem
 
@@ -42,7 +42,7 @@ public void LoadFolder(string folderPath)
 			}
 		}
 
-		public object LoadFile(string name, bool isRaw)
+		public object? LoadFile(string name, bool isRaw)
 		{
 			//If anyone's wondering, the following basically doubles ram usage but doesn't latch onto files, useful for debugging
 			/*FileStream fs = File.Open($"{folderPath}/{name}", FileMode.Open, FileAccess.Read);
@@ -51,7 +51,11 @@ public object LoadFile(string name, bool isRaw)
 			fs.Close();*/
 
 			//The following doesn't use as much ram but holds onto files
-			FileStream ms = File.Open($"{folderPath}/{name}", FileMode.Open, FileAccess.Read);
+			FileStream? ms = null;
+			if(File.Exists($"{folderPath}/{name}"))
+			{
+				ms = File.Open($"{folderPath}/{name}", FileMode.Open, FileAccess.Read);
+			}
 
 			if(isRaw)
 			{
@@ -60,7 +64,11 @@ public object LoadFile(string name, bool isRaw)
 			}
 			else
 			{
-				IGFile file = new IGFile(ms);
+				IGFile? file = null;
+				if(ms != null)
+				{
+					file = new IGFile(ms);
+				}
 				igfiles.Add(name, file);
 				return file;
 			}

README.md

@@ -0,0 +1,17 @@
+# Lunacy Level Editor
+
+Level editor for the Ratchet and Clank PS3 games along with the Resistance series
+
+## Building
+
+* cd into the directory with Lunacy.sln
+* Run `dotnet build`
+
+## Running
+
+* Run `Lunacy.exe <path to folder>`, where the folder contains either the main.dat file or the assetlookup.dat file
+* Controls are as such:
+  * hold right click + move mouse to look around
+  * wasd to move, shift to move faster
+  * p shows the names of all objects that the mouse is hovering over
+  * select an object in either the regions or zones windows to teleport to that object