Add autoloading tracks from folder

.gitignore

@@ -6,6 +6,7 @@ old/
 tracks/*
 !tracks/base.gd
 !tracks/example.gd
+!tracks/exampleautoload.gd
 temp/
 thumbnails/*
 !thumbnails/example.bmp

tracks/base.gd

@@ -3,15 +3,50 @@ class_name BaseTrack
 
 var _default = null
 var _tracks = null
+var _autoload = null
 
 func get_tracks():
-	if not _tracks:
+	if not _tracks and not _autoload:
 		return []
 	
-	var tracks = _tracks.duplicate()
+	var tracks = []
 	
-	if not _default:
-		return tracks
+	if _autoload:
+		var dir = DirAccess.open(_autoload.path)
+	
+		if dir:
+			dir.list_dir_begin()
+			var file_name = dir.get_next()
+			
+			while file_name != "":
+				if not dir.current_is_dir() and not file_name.ends_with(".import"):
+					var regex = RegEx.new()
+					regex.compile(_autoload.pattern)
+					var result = regex.search(file_name)
+					var track_name = file_name
+					if result:
+						track_name = result.get_string()
+					
+					tracks.push_back({
+						"name": track_name,
+						"track": "%s/%s" % [_autoload.path, file_name]
+					})
+				
+				file_name = dir.get_next()
+	
+	if _tracks:
+		for track in _tracks:
+			var filter = tracks.filter(func(a): return a.track == track.track)
+			
+			if filter.size() == 0:
+				# Does not exist as an autoload
+				tracks.push_back(track)
+			else:
+				# Exists as an overload, override all keys
+				var found_track = filter[0]
+				
+				for key in found_track:
+					track[key] = found_track[key]
 	
 	for track in tracks:
 		for key in _default:

tracks/exampleautoload.gd

@@ -0,0 +1,20 @@
+extends BaseTrack
+
+# This is the same as example but uses the autoload system to automatically populate names from file names
+# Gets the area that should become the name from regex
+# You can use sites like this to help construct regex: https://regex101.com/
+
+func _init():
+	_default = {
+		"artist": "Kevin MacLeod",
+		"thumbnail": preload("res://thumbnails/example.bmp"),
+		"source": "https://incompetech.com/",
+		"disabled": false
+	}
+	
+	_autoload = {
+		"path": "res://music/example",
+		"pattern": "^[^.]+"
+	}
+
+# You can still override things using a _tracks variable and the track set to the path to the file for what you want to override