Merge pull request #243 from Nemrav/music

Music and sound effects

2 files changed, 85 insertions, 8 deletions

diff --git a/game/src/Game/MusicConductor/MusicConductor.gd b/game/src/Game/MusicConductor/MusicConductor.gd
index b4b660a..7103aff 100644
--- a/game/src/Game/MusicConductor/MusicConductor.gd
+++ b/game/src/Game/MusicConductor/MusicConductor.gd
@@ -17,6 +17,12 @@ var _selected_track := 0
 var _available_songs : Array[SongInfo] = []
 var _auto_play_next_song : bool = true
 
+var playlist: Array[int] = []
+var playlist_index:int = 0
+var preferred_playlist_len: int = 7
+var last_played: int = -1
+
+
 ## True if music player should be visible.
 ## Used to keep keep consistency between scene changes
 var is_music_player_visible : bool = true
@@ -28,6 +34,12 @@ func get_all_song_names() -> PackedStringArray:
 	for si : SongInfo in _available_songs:
 		songNames.append(si.song_name)
 	return songNames
+	
+func get_all_song_paths() -> PackedStringArray:
+	var songPaths : PackedStringArray = []
+	for si : SongInfo in _available_songs:
+		songPaths.append(si.song_path)
+	return songPaths
 
 func get_current_song_index() -> int:
 	return _selected_track
@@ -67,24 +79,82 @@ func start_song_by_index(id: int) -> void:
 # REQUIREMENTS
 # * SS-69
 func select_next_song() -> void:
-	_selected_track = (_selected_track + 1) % len(_available_songs)
+	#_selected_track = (_selected_track + 1) % len(_available_songs)
+	if playlist_index >= preferred_playlist_len or playlist_index >= len(playlist):
+		generate_playlist()
+		playlist_index = 0
+	_selected_track = playlist[playlist_index]
+	playlist_index += 1
+	last_played = playlist_index
 	start_current_song()
 
 func select_previous_song() -> void:
 	_selected_track = (len(_available_songs) - 1) if (_selected_track == 0) else (_selected_track - 1)
 	start_current_song()
 
-# REQUIREMENTS
-# * SND-2, SND-3
-func _ready() -> void:
+func setup_compat_song(file_name) -> void:
+	var song = SongInfo.new()
+	var stream = SoundSingleton.get_song(file_name)
+
+	var metadata = MusicMetadata.new()
+	metadata.set_from_stream(stream)
+	var title = metadata.title
+	if title == "":
+		#use the file name without the extension if there's no metadata
+		title = file_name.split(".")[0]
+	song.init_stream(file_name,title,stream)
+	_available_songs.append(song)
+	
+func add_compat_songs() -> void:
+	for file_name : String in SoundSingleton.song_list:
+		setup_compat_song(file_name)
+
+func add_ootb_music() -> void:
 	var dir := DirAccess.open(music_directory)
 	for fname : String in dir.get_files():
 		if fname.ends_with(".import"):
 			fname = fname.get_basename()
 			if fname.get_basename() == first_song_name:
 				_selected_track = _available_songs.size()
-			_available_songs.append(SongInfo.new(music_directory, fname))
-	start_current_song()
+			var song = SongInfo.new()
+			song.init_file_path(music_directory, fname)
+			_available_songs.append(song)
+
+func generate_playlist() -> void:
+	var song_names = MusicConductor.get_all_song_paths()
+	var possible_indices = range(len(song_names)-1)
+	
+	var title_index = song_names.find(SoundSingleton.title_theme)
+	possible_indices.remove_at(title_index)
+	
+	var actual_playlist_len = min(preferred_playlist_len,len(possible_indices))
+	
+	#if the playlist size is too large or small, make it the same size as what we 
+	#need to support
+	if len(playlist) != actual_playlist_len:
+		playlist.resize(actual_playlist_len)
+		playlist.fill(0)
+
+	#The song we just played can be in the playlist, just not the first one
+	if last_played != -1:
+		possible_indices.remove_at(last_played)
+	
+	#essentially shuffle-bag randomness, picking from a list of song indices
+	for i in range(actual_playlist_len):
+		var ind = randi_range(0,len(possible_indices)-1)
+		#add back the last song we just played as an option
+		if i==2:
+			possible_indices.append(last_played)
+		
+		playlist[i] = possible_indices[ind]
+		possible_indices.remove_at(ind)
+
+# REQUIREMENTS
+# * SND-2, SND-3
+func _ready() -> void:
+	add_ootb_music()
+	#don't start the current song for compat mode, do that from
+	#GameStart so we can wait until the music is loaded
 
 func set_startup_music(play : bool) -> void:
 	if not _has_startup_happened:
diff --git a/game/src/Game/MusicConductor/SongInfo.gd b/game/src/Game/MusicConductor/SongInfo.gd
index abcf120..527f618 100644
--- a/game/src/Game/MusicConductor/SongInfo.gd
+++ b/game/src/Game/MusicConductor/SongInfo.gd
@@ -3,9 +3,16 @@ class_name SongInfo
 
 var song_path : String = ""
 var song_name : String = ""
-var song_stream : Resource
+var song_stream : AudioStream
 
-func _init(dirname:String, fname:String) -> void:
+#Initialize from a file path
+func init_file_path(dirname : String, fname : String) -> void:
 		song_path = dirname.path_join(fname)
 		song_name = fname.get_basename().replace("_", " ")
 		song_stream = load(song_path)
+
+#Initialize from an audio stream
+func init_stream(dirpath : String, name : String, stream : AudioStream) -> void:
+		song_path = dirpath
+		song_name = name
+		song_stream = stream