refresh.h

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00001 /* $Id: refresh.h 25948 2013-11-07 20:50:03Z fonsinchen $ */
00002 
00003 /*
00004  * This file is part of OpenTTD.
00005  * 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.
00006  * 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.
00007  * 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/>.
00008  */
00009 
00012 #ifndef REFRESH_H
00013 #define REFRESH_H
00014 
00015 #include "../cargo_type.h"
00016 #include "../vehicle_base.h"
00017 #include <list>
00018 #include <map>
00019 #include <set>
00020 
00024 class LinkRefresher {
00025 public:
00026   static void Run(Vehicle *v, bool allow_merge = true);
00027 
00028 protected:
00033   enum RefreshFlags {
00034     USE_NEXT,   
00035     HAS_CARGO,  
00036     WAS_REFIT,  
00037     RESET_REFIT 
00038   };
00039 
00043   struct RefitDesc {
00044     CargoID cargo;    
00045     uint16 capacity;  
00046     uint16 remaining; 
00047     RefitDesc(CargoID cargo, uint16 capacity, uint16 remaining) :
00048         cargo(cargo), capacity(capacity), remaining(remaining) {}
00049   };
00050 
00060   struct Hop {
00061     OrderID from;  
00062     OrderID to;    
00063     CargoID cargo; 
00064 
00069     Hop() {NOT_REACHED();}
00070 
00077     Hop(OrderID from, OrderID to, CargoID cargo) : from(from), to(to), cargo(cargo) {}
00078     bool operator<(const Hop &other) const;
00079   };
00080 
00081   typedef std::list<RefitDesc> RefitList;
00082   typedef std::map<CargoID, uint> CapacitiesMap;
00083   typedef std::set<Hop> HopSet;
00084 
00085   Vehicle *vehicle;           
00086   CapacitiesMap capacities;   
00087   RefitList refit_capacities; 
00088   HopSet *seen_hops;          
00089   CargoID cargo;              
00090   bool allow_merge;           
00091 
00092   LinkRefresher(Vehicle *v, HopSet *seen_hops, bool allow_merge);
00093 
00094   void HandleRefit(const Order *next);
00095   void ResetRefit();
00096   void RefreshStats(const Order *cur, const Order *next);
00097   const Order *PredictNextOrder(const Order *cur, const Order *next, uint8 flags);
00098 
00099   void RefreshLinks(const Order *cur, const Order *next, uint8 flags);
00100 };
00101 
00102 #endif // REFRESH_H