game: Add a resource file to what is loaded by default

Load the gvariant printed file $gamename.resources when the game starts.
This file contains all the resources used by the game. These resources
are available by name using game_game_get_resource() (and can be
automatically used using game_game_spawn_object() and other helper
functions).

1 files changed, 55 insertions, 0 deletions

diff --git a/libgame/game-game.c b/libgame/game-game.c
index 74be247..e51b263 100644
--- a/libgame/game-game.c
+++ b/libgame/game-game.c
@@ -1101,6 +1101,59 @@ game_game_get_object (GameGame *game, const char *name)
   return g_hash_table_lookup (game->named_objects, name);
 }
 
+static void
+game_game_add_resource (GameGame *    game,
+                        const char *  name,
+                        GameResource *resource)
+{
+  g_object_ref (resource);
+  g_object_set (resource, "name", name, NULL);
+}
+
+static void
+game_game_load_default_resources (GameGame *game)
+{
+  GameDataResource *data_resource;
+  char *s;
+  const guchar *data;
+  GVariant *variant, *v;
+  GVariantIter iter;
+  GError *error = NULL;
+  GameResource *resource;
+
+  s = g_strconcat (game->name, ".resources", NULL);
+  data_resource = game_game_load_resource (game, s);
+  g_free (s);
+  
+  data = game_data_resource_get_data (data_resource);
+  if (data == NULL)
+    return;
+
+  variant = g_variant_parse (G_VARIANT_TYPE ("a{sv}"),
+                             (char *) data,
+                             (char *) data + game_data_resource_get_size (data_resource),
+                             NULL,
+                             &error);
+  if (variant == NULL)
+    {
+      g_warning ("Could not load game resources: %s", error->message);
+      g_error_free (error);
+      return;
+    }
+
+  g_variant_iter_init (&iter, variant);
+
+  while (g_variant_iter_loop (&iter, "{sv}", &s, &v))
+    {
+      resource = game_resource_load (game, v);
+      game_game_add_resource (game, s, resource);
+      g_object_unref (resource);
+    }
+
+  g_variant_unref (variant);
+  g_object_unref (data_resource);
+}
+
 GameResource *
 game_game_get_resource (GameGame *game, const char *name)
 {
@@ -1109,6 +1162,8 @@ game_game_get_resource (GameGame *game, const char *name)
   g_return_val_if_fail (GAME_IS_GAME (game), NULL);
   g_return_val_if_fail (name != NULL, NULL);
 
+  game_game_load_default_resources (game);
+
   p = g_hash_table_lookup (game->named_objects, name);
   if (GAME_IS_RESOURCE (p))
     return p;