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Patric Stout

Remove: DOS support

In 10 years there was no active development on DOS. Although it
turned out to still work, the FPS was very bad. There is little
interest in the current community to look into this.

Further more, we like to switch to c++11 functions for threads,
which are not implemented by DJGPP, the only current compiler
for DOS.

Additionally, DOS is the only platform which does not support
networking. It is the reason we have tons of #ifdefs to support
disabling networking.

By removing DOS support, we can both use c++11 functions for threads,
and remove all the code related to disabling network. Sadly, this
means we have to see DOS go.

Of course, if you feel up for the task, simply revert this commit,
and implement stub c++11 functions for threads and stub functions
for networking. We are more than happy to accept such Pull Request.

/* $Id$ */

/*
 * 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 economy_func.h Functions related to the economy. */

#ifndef ECONOMY_FUNC_H
#define ECONOMY_FUNC_H

#include "economy_type.h"
#include "station_type.h"
#include "cargo_type.h"
#include "vehicle_type.h"
#include "company_type.h"

void ResetPriceBaseMultipliers();
void SetPriceBaseMultiplier(Price price, int factor);

extern const ScoreInfo _score_info[];
extern int64 _score_part[MAX_COMPANIES][SCORE_END];
extern Economy _economy;
/* Prices and also the fractional part. */
extern Prices _price;

int UpdateCompanyRatingAndValue(Company *c, bool update);
void StartupIndustryDailyChanges(bool init_counter);

Money GetTransportedGoodsIncome(uint num_pieces, uint dist, byte transit_days, CargoID cargo_type);
uint MoveGoodsToStation(CargoID type, uint amount, SourceType source_type, SourceID source_id, const StationList *all_stations);

void PrepareUnload(Vehicle *front_v);
void LoadUnloadStation(Station *st);

Money GetPrice(Price index, uint cost_factor, const struct GRFFile *grf_file, int shift = 0);

void InitializeEconomy();
void RecomputePrices();
bool AddInflation(bool check_year = true);

/**
 * Is the economy in recession?
 * @return \c True if economy is in recession, \c false otherwise.
 */
static inline bool EconomyIsInRecession()
{
	return _economy.fluct <= 0;
}

#endif /* ECONOMY_FUNC_H */