+
+bool Union::check_connection()
+{
+ switch (get_img_actual()) {
+ case 0:
+ if ( is_other_occupied_area( get_position_x() - 10, get_position_y() +10) &&
+ is_other_occupied_area( get_position_x()+get_image()->get_width()+10, get_position_y()+10) &&
+ is_other_occupied_area( get_position_x()+get_image()->get_width()/2, get_position_y()+get_image()->get_height()+10) )
+ return true;
+ break;
+ case 1:
+ if ( is_other_occupied_area( get_position_x()-10, get_position_y()+get_image()->get_height()/2) &&
+ is_other_occupied_area( get_position_x()+get_image()->get_width()-10, get_position_y()-10) &&
+ is_other_occupied_area( get_position_x()+get_image()->get_width()-10, get_position_y()+get_image()->get_height()+10) )
+ return true;
+ break;
+ case 2:
+ if ( is_other_occupied_area( get_position_x()-10, get_position_y()+get_image()->get_height()-10) &&
+ is_other_occupied_area( get_position_x()+get_image()->get_width()/2, get_position_y()-10) &&
+ is_other_occupied_area( get_position_x()+get_image()->get_width()+10, get_position_y()+get_image()->get_height()-10) )
+ return true;
+ break;
+ case 3:
+ if ( is_other_occupied_area( get_position_x()+10, get_position_y()-10) &&
+ is_other_occupied_area( get_position_x()+get_image()->get_width()+10, get_position_y()+get_image()->get_height()/2) &&
+ is_other_occupied_area( get_position_x()+10, get_position_y()+get_image()->get_height()+10) )
+ return true;
+ }
+ return false;
+}