src/subsidy_type.h

   1 /* $Id: subsidy_type.h 22406 2011-05-01 19:51:52Z rubidium $ */
   2
   3 /*
   4  * This file is part of OpenTTD.
   5  * 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.
   6  * 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.
   7  * 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/>.
   8  */
   9
  10 /** @file subsidy_type.h basic types related to subsidies */
  11
  12 #ifndef SUBSIDY_TYPE_H
  13 #define SUBSIDY_TYPE_H
  14
  15 #include "core/enum_type.hpp"
  16
  17 /** What part of a subsidy is something? */
  18 enum PartOfSubsidy {
  19         POS_NONE =     0, ///< nothing
  20         POS_SRC = 1 << 0, ///< bit 0 set -> town/industry is source of subsidised path
  21         POS_DST = 1 << 1, ///< bit 1 set -> town/industry is destination of subsidised path
  22 };
  23 /** Helper to store the PartOfSubsidy data in a single byte. */
  24 typedef SimpleTinyEnumT<PartOfSubsidy, byte> PartOfSubsidyByte;
  25
  26 DECLARE_ENUM_AS_BIT_SET(PartOfSubsidy)
  27
  28 typedef uint16 SubsidyID; ///< ID of a subsidy
  29 struct Subsidy;
  30
  31 #endif /* SUBSIDY_TYPE_H */