start on MusicDB

Scripts/Data/Chart/Difficulty.cs

@@ -1,9 +0,0 @@
-using System;
-
-namespace WacK.Data.Chart
-{
-	public enum DifficultyLevel
-	{
-		Normal, Hard, Expert, Inferno
-	}
-}

Scripts/Data/MusicDB/Database.cs

@@ -0,0 +1,77 @@
+using System.Collections.Generic;
+
+using Godot;
+
+namespace WacK.MusicDB
+{
+	public class Database
+	{
+		public static readonly string SONGS_DIR = "user://songs";
+		public List<Song> songs;
+
+		public static Database instance;
+
+		public static void Init()
+		{
+			if (instance != null) return;
+
+			instance = new Database();
+		}
+
+		public Database()
+		{
+			InitSongsDir();
+			BuildDatabase(SONGS_DIR);
+		}
+		
+		private void InitSongsDir()
+		{
+			GD.Print($"User directory: {OS.GetUserDataDir()}");
+			var songDir = DirAccess.Open(SONGS_DIR);
+			if (songDir != null)
+			{
+				GD.Print("Successfully opened songs directory!");
+			}
+			else
+			{
+				GD.Print("Could not find songs directory! Creating it...");
+
+				DirAccess.MakeDirAbsolute(SONGS_DIR);
+				using var newSongDir = DirAccess.Open(SONGS_DIR);
+
+				if (newSongDir != null)
+				{
+					GD.Print("Songs folder created successfully!");
+					// create note
+					var note = "Place song folders here. Nested folders supported for organization.\n";
+					using (var f = FileAccess.Open($"{newSongDir.GetCurrentDir()}/note.txt", FileAccess.ModeFlags.Write))
+					{
+						f.StoreString(note);
+					}
+				}
+				else
+				{
+					GD.PrintErr($"Could not create the songs directory!\n{DirAccess.GetOpenError()}");
+				}
+
+			}
+		}
+		
+		private void BuildDatabase(string path)
+		{
+			var d = DirAccess.Open(path);
+			if (d == null) return;
+
+		}
+
+		public void SaveCache()
+		{
+			
+		}
+
+		public void LoadCache()
+		{
+			
+		}
+	}
+}

Scripts/Data/MusicDB/Difficulty.cs

@@ -0,0 +1,30 @@
+using WacK.Data.Chart;
+
+namespace WacK.MusicDB
+{	
+	public enum DifficultyLevel
+	{
+		Normal, Hard, Expert, Inferno
+	}
+
+	public struct Difficulty
+	{
+		DifficultyLevel diffLevel;
+		float diffValue;
+		
+		/// <summary>
+		/// % of max score required to clear this chart.
+		/// </summary>
+		float clearRatio;
+
+		/// <summary>
+		/// Path to audio file for this difficulty.
+		/// </summary>
+		string audioFile;
+
+		string designer;
+
+		float audioPreviewStart, audioPreviewLength;
+		float audioOffset; // in seconds
+	}
+}

Scripts/Data/MusicDB/Song.cs

@@ -0,0 +1,14 @@
+namespace WacK.MusicDB
+{
+	public class Song
+	{
+		string name, artist, category, copyright;
+		int tempo;
+
+		// chart path relative to user://songs
+		string dirPath;
+
+		// should only hold 4 values
+		Difficulty[] diff;
+	}
+}