src/company_func.h

   1 /*
   2  * This file is part of OpenTTD.
   3  * 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.
   4  * 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.
   5  * 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/>.
   6  */
   7
   8 /** @file company_func.h Functions related to companies. */
   9
  10 #ifndef COMPANY_FUNC_H
  11 #define COMPANY_FUNC_H
  12
  13 #include "command_type.h"
  14 #include "company_type.h"
  15 #include "gfx_type.h"
  16 #include "vehicle_type.h"
  17
  18 bool MayCompanyTakeOver(CompanyID cbig, CompanyID small);
  19 void ChangeOwnershipOfCompanyItems(Owner old_owner, Owner new_owner);
  20 void GetNameOfOwner(Owner owner, TileIndex tile);
  21 void SetLocalCompany(CompanyID new_company);
  22 void ShowBuyCompanyDialog(CompanyID company);
  23 void CompanyAdminUpdate(const Company *company);
  24 void CompanyAdminBankrupt(CompanyID company_id);
  25 void UpdateLandscapingLimits();
  26
  27 bool CheckCompanyHasMoney(CommandCost &cost);
  28 void SubtractMoneyFromCompany(const CommandCost& cost);
  29 void SubtractMoneyFromCompanyFract(CompanyID company, const CommandCost& cost);
  30 CommandCost CheckOwnership(Owner owner, TileIndex tile = 0U);
  31 CommandCost CheckTileOwnership(TileIndex tile);
  32
  33 extern CompanyID _local_company;
  34 extern CompanyID _current_company;
  35
  36 extern Colours _company_colours[MAX_COMPANIES];
  37 extern CompanyManagerFace _company_manager_face;
  38
  39 /**
  40  * Is the current company the local company?
  41  * @return \c true of the current company is the local company, \c false otherwise.
  42  */
  43 static inline bool IsLocalCompany()
  44 {
  45         return _local_company == _current_company;
  46 }
  47
  48 /**
  49  * Is the user representing \a company?
  50  * @param company Company where interaction is needed with.
  51  * @return Gives \c true if the user can answer questions interactively as representative of \a company, else \c false
  52  */
  53 static inline bool IsInteractiveCompany(CompanyID company)
  54 {
  55         return company == _local_company;
  56 }
  57
  58 int CompanyServiceInterval(const Company *c, VehicleType type);
  59 CompanyID GetFirstPlayableCompanyID();
  60
  61 #endif /* COMPANY_FUNC_H */