ajout de panneaux de contrôles, de paramètres et refactorisation de la gestion de l'audio

entities/player/inventory/scripts/items/seed.gd

@@ -64,7 +64,7 @@ func use(player : Player, zone : Player.ActionZone) -> bool:
 	if player.planet == null:
 		return false
 
-	player.play_sfx("dig")
+	AudioManager.play_sfx("Dig")
 	return player.planet.plant(
 		plant_type,
 		zone.get_global_position(),
@@ -138,7 +138,7 @@ static func mutate(parent_mutation : Array[PlantMutation] = []) -> Array[PlantMu
 	]
 
 	if (
-		len(parent_mutation) > 2
+		len(parent_mutation) >= 2
 	):
 		possible_mutations = [
 			UpgradeMutation.new(),