Scene fixing

src/scene/scene.h

@@ -12,15 +12,14 @@
 
 #define SCENE_FLAG_INITIALIZED (1 << 0)
 
+typedef struct scenedata_s scenedata_t;
+
 typedef struct {
   const char_t *name;
-  void *data;
-
-  errorret_t (*init)(void *data);
-  void (*update)(void *data);
-  void (*render)(void *data);
-  void (*dispose)(void *data);
-
+  errorret_t (*init)(scenedata_t *data);
+  void (*update)(scenedata_t *data);
+  void (*render)(scenedata_t *data);
+  void (*dispose)(scenedata_t *data);
   uint8_t flags;
   color_t background;
 } scene_t;