ajout du comportement d'activation de la musique

common/music/scripts/music.gd

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+extends Node
+
+@export var default_fade_time = 1.0
+
+@export var decontamination_musics : Array[AudioStreamPlayer]
+@export var decontamination_musics_levels : Array[float]
+
+@onready var playing_music = null : set = play_music
+
+func _ready():
+	GameInfo.game_data.current_planet_data_updated.connect(_on_current_planet_data_updated)
+
+func _on_current_planet_data_updated(planet_data : PlanetData):
+	if planet_data:
+		planet_data.contamination_updated.connect(_on_contamination_updated)
+		if len(decontamination_musics):
+			play_music(decontamination_musics[0])
+
+func _on_contamination_updated(decontamination_surface : float):
+	var actual_level = 0
+	if len(decontamination_musics_levels) and len(decontamination_musics):
+		for level in range(1, len(decontamination_musics_levels)):
+			if decontamination_surface > decontamination_musics_levels[level]:
+				actual_level = level
+	
+	print(actual_level)
+
+	if len(decontamination_musics) > actual_level:
+		play_music(decontamination_musics[actual_level])
+
+func stop_music():
+	play_music(null)
+
+func play_music(music : AudioStreamPlayer):
+	if playing_music != null:
+		if playing_music != music:
+			if playing_music:
+				await audio_fade(playing_music, false).finished
+
+			if music:
+				music.play()
+	elif music != null and music != playing_music:
+		music.play()
+	playing_music = music
+
+func audio_fade(music : AudioStreamPlayer, fade_in = true, fade_time = default_fade_time) -> Tween:
+	var fade_tween : Tween = get_tree().create_tween()
+	var music_default_volume = music.volume_db
+	var target_volume = music_default_volume if fade_in else -80.
+	
+	if fade_in:
+		music.volume_db = -80.
+		music.play()
+
+	fade_tween.tween_property(music, "volume_db", target_volume, fade_time)
+
+	if not fade_in:
+		fade_tween.finished.connect(
+			func():
+				music.stop()
+				music.volume_db = music_default_volume
+		)
+	return fade_tween

common/music/scripts/music.gd.uid

@@ -0,0 +1 @@
+uid://2p5d6vogtn82