OpenTTD: src/subsidy_base.h Source File

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subsidy_base.h
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1 /* $Id: subsidy_base.h 23704 2012-01-01 17:22:32Z alberth $ */
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
12 #ifndef SUBSIDY_BASE_H
13 #define SUBSIDY_BASE_H
14
15 #include "cargo_type.h"
16 #include "company_type.h"
17 #include "subsidy_type.h"
18 #include "core/pool_type.hpp"
19
20 typedef Pool<Subsidy, SubsidyID, 1, 256> SubsidyPool;
21 extern SubsidyPool _subsidy_pool;
22
24 struct Subsidy : SubsidyPool::PoolItem<&_subsidy_pool> {
25 CargoID cargo_type;
26 byte remaining;
27 CompanyByte awarded;
28 SourceTypeByte src_type;
29 SourceTypeByte dst_type;
30 SourceID src;
31 SourceID dst;
32
36 inline Subsidy() { }
37
41 inline ~Subsidy() { }
42
47 inline bool IsAwarded() const
48 {
49 return this->awarded != INVALID_COMPANY;
50 }
51
52 void AwardTo(CompanyID company);
53 };
54
56 static const uint SUBSIDY_OFFER_MONTHS = 12;
57 static const uint SUBSIDY_CONTRACT_MONTHS = 12;
58 static const uint SUBSIDY_PAX_MIN_POPULATION = 400;
59 static const uint SUBSIDY_CARGO_MIN_POPULATION = 900;
60 static const uint SUBSIDY_MAX_PCT_TRANSPORTED = 42;
61 static const uint SUBSIDY_MAX_DISTANCE = 70;
62
63 #define FOR_ALL_SUBSIDIES_FROM(var, start) FOR_ALL_ITEMS_FROM(Subsidy, subsidy_index, var, start)
64 #define FOR_ALL_SUBSIDIES(var) FOR_ALL_SUBSIDIES_FROM(var, 0)
65
66 #endif /* SUBSIDY_BASE_H */