* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

 * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.

 */

/**

 * @file newgrf_commons.h This file simplyfies and embeds a common mechanism of

 * loading/saving and mapping of grf entities.

 */

#ifndef NEWGRF_COMMONS_H

#define NEWGRF_COMMONS_H

#include "sprite.h"

#include "core/alloc_type.hpp"

#include "core/smallvec_type.hpp"

#include "command_type.h"

#include "direction_type.h"

#include "company_type.h"

/** Context for tile accesses */

enum TileContext {

	TCX_NORMAL,         ///< Nothing special.

	TCX_UPPER_HALFTILE, ///< Querying information about the upper part of a tile with halftile foundation.

	TCX_ON_BRIDGE,      ///< Querying information about stuff on the bridge (via some bridgehead).