update Sound abstraction in app

Signed-off-by: BlackMinou <romain.chanoir@viacesi.fr>

diff --git a/lib/app/audio.nit b/lib/app/audio.nit
index de68bb9..1b5eff4 100644 (file)
--- a/lib/app/audio.nit
+++ b/lib/app/audio.nit
@@ -22,9 +22,22 @@
 module audio
 
 import app_base
+import standard::error
 
-# Abstraction of a sound
-abstract class Sound
+# Abstraction of a playable Audio
+abstract class PlayableAudio
+
+       # Name of this playable audio
+       var name: String
+
+       # Error which is not null if an error happened
+       var error: nullable Error = null is writable
+
+       # Is this already loaded ?
+       protected var is_loaded = false is writable
+
+       # load this playable audio
+       fun load is abstract
 
        # Plays the sound
        fun play is abstract
@@ -36,8 +49,21 @@ abstract class Sound
        fun resume is abstract
 end
 
+# Abstraction of a short sound
+class Sound
+       super PlayableAudio
+end
+
+# Abstraction of a long song, that can bee looped
+class Music
+       super PlayableAudio
+end
+
 redef class App
 
-       # Loads a sound from the assets of the app, returns `null` if the loading failed
-       fun load_sound(name: String): nullable Sound do return null
+       # Load a sound
+       fun load_sound(name: String): Sound is abstract
+
+       # Load a music
+       fun load_music(name: String): Music is abstract
 end