Files @ r27888:73e8956ac824
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Location: cpp/openttd-patchpack/source/src/subsidy_type.h

Michael Lutz
Feature: [NewGRF] Related Act2 objects for airports and airport tiles.

Airports are similar two stations and industries, both of which have the town as related object.
Airport tiles are similar to industry tiles, which have the industry as related object.
This seems a sensible structure, so let's make it Airport Tile -> Airport -> Town.
/*
 * This file is part of OpenTTD.
 * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
 * 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 subsidy_type.h basic types related to subsidies */

#ifndef SUBSIDY_TYPE_H
#define SUBSIDY_TYPE_H

#include "core/enum_type.hpp"

/** What part of a subsidy is something? */
enum PartOfSubsidy : byte {
	POS_NONE =     0, ///< nothing
	POS_SRC = 1 << 0, ///< bit 0 set -> town/industry is source of subsidised path
	POS_DST = 1 << 1, ///< bit 1 set -> town/industry is destination of subsidised path
};
DECLARE_ENUM_AS_BIT_SET(PartOfSubsidy)

typedef uint16_t SubsidyID; ///< ID of a subsidy
struct Subsidy;

#endif /* SUBSIDY_TYPE_H */