added playlist generator

scripts/playlist_generator.gd

@@ -0,0 +1,78 @@
+@tool
+extends Node
+
+@export var generate_playlist_now = false
+@export var load_playlist_from_file = false
+@export var maps_in_rotation : Array[String] = []
+@export var gamemodes_in_rotation : Array[gamemode]= []
+@export var levels_per_round : int = 5
+@export var rounds : int = 3
+
+# Called when the node enters the scene tree for the first time.
+func _ready() -> void:
+	pass # Replace with function body.
+
+
+# Called every frame. 'delta' is the elapsed time since the previous frame.
+func _process(delta: float) -> void:
+	if generate_playlist_now == true:
+		generate_playlist()
+	
+	if load_playlist_from_file == true:
+		load_playlist()
+
+
+func generate_playlist() -> void:
+	var playlist_name = only_valid_chars(GameGlobals.leaderboard_name)
+	var playlist = []
+	print("PLAYLIST CREATED FOR THE : ",playlist_name)
+	for i in rounds:
+		var round = []
+		for x in levels_per_round:
+			var level_details = {
+				"map" : maps_in_rotation.pick_random(),
+				"gamemode" : gamemodes_in_rotation.pick_random()
+			}
+			round.append(level_details)
+		
+		playlist.append(round)
+	print("PLAYLIST : ", playlist[0][0])
+	
+	save_playlist(playlist)
+	generate_playlist_now = false
+
+
+func only_valid_chars(input_string: String) -> String:
+	var valid_chars = ""
+	
+	for char in input_string:
+		if char.is_valid_identifier():
+			valid_chars += char
+		elif  char == " ":
+			valid_chars += "_"
+	
+	return valid_chars
+
+func save_playlist(playlist):
+	var playlist_path : String = "user://" + str(only_valid_chars(GameGlobals.leaderboard_name)) + "_playlist.save"
+	var file = FileAccess.open(playlist_path, FileAccess.WRITE)
+	file.store_var(only_valid_chars(GameGlobals.leaderboard_name))
+	file.store_var(playlist)
+	file.close()
+
+func load_playlist():
+	var playlist_path : String = "user://" + str(only_valid_chars(GameGlobals.leaderboard_name)) + "_playlist.save"
+	if FileAccess.file_exists(playlist_path):
+		var file = FileAccess.open(playlist_path, FileAccess.READ)
+		var key = file.get_var()
+		var playlist = file.get_var()
+		print("KEY : ",key)
+		GameGlobals.playlist_test = playlist
+		file.close()
+		print("PLAYLIST: ")
+		print("------------------------------------------------------------------------------------")
+		print(playlist)
+	else:
+		print("no data saved, generating new playlist...")
+		generate_playlist()
+