static AtkObject*
goo_canvas_item_accessible_ref_child (AtkObject *accessible,
gint child_num)
{
GooCanvasItem *item, *child;
AtkObject *atk_object;
GObject *object;
g_return_val_if_fail (GOO_IS_CANVAS_ITEM_ACCESSIBLE (accessible), NULL);
object = atk_gobject_accessible_get_object (ATK_GOBJECT_ACCESSIBLE (accessible));
if (object == NULL)
return NULL;
item = GOO_CANVAS_ITEM (object);
child = goo_canvas_item_get_child (item, child_num);
if (!child)
return NULL;
atk_object = atk_gobject_accessible_for_object (G_OBJECT (child));
g_object_ref (atk_object);
return atk_object;
}
void canvas_t::move_background(int x, int y)
{
canvas_goocanvas *gcanvas = static_cast<canvas_goocanvas *>(this);
GooCanvasItem *bgitem = goo_canvas_item_get_child(gcanvas->group[CANVAS_GROUP_BG], 0);
assert(bgitem != nullptr);
g_object_set(G_OBJECT(bgitem),
"x", static_cast<gdouble>(x) / gcanvas->bg.scale.x,
"y", static_cast<gdouble>(y) / gcanvas->bg.scale.y,
nullptr);
}
/*
* This does the moves of the game items on the play canvas
*
*/
static gint planegame_move_items (GtkWidget *widget, gpointer data)
{
int i;
/* Check collision with each cloud */
for(i = 0;
i < goo_canvas_item_get_n_children(clouds_rootitem);
i++)
planegame_cloud_colision(goo_canvas_item_get_child(clouds_rootitem,
i));
/* move the plane */
planegame_move_plane(planeitem);
planemove_id = g_timeout_add (speed,
(GtkFunction) planegame_move_items, NULL);
return(FALSE);
}
