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/* $Id$ */
/** @file subsidy_type.h Types related to subsidies. */
#ifndef SUBSIDY_TYPE_H
#define SUBSIDY_TYPE_H
#include "cargo_type.h"
#include "company_type.h"
/** Struct about subsidies, both offered and awarded */
struct Subsidy {
CargoID cargo_type; ///< Cargo type involved in this subsidy, CT_INVALID for invalid subsidy
byte age; ///< Subsidy age; < 12 is unawarded, >= 12 is awarded
uint16 from; ///< Index of source. Either TownID, IndustryID or StationID, when awarded.
uint16 to; ///< Index of destination. Either TownID, IndustryID or StationID, when awarded.
};
extern Subsidy _subsidies[MAX_COMPANIES];
#define FOR_ALL_SUBSIDIES_FROM(var, start) for (var = &_subsidies[start]; var < endof(_subsidies); var++) \
if (var->cargo_type != CT_INVALID)
#define FOR_ALL_SUBSIDIES(var) FOR_ALL_SUBSIDIES_FROM(var, 0)
#endif /* SUBSIDY_TYPE_H */
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