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Location: cpp/openttd-patchpack/source/src/cargopacket.h - annotation
r22741:e8a5f1e5aae8
17.3 KiB
text/x-c
(svn r27969) -Update from Eints:
danish: 22 changes by Knogle
danish: 22 changes by Knogle
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r20055:c53a5b6f3871 r20055:c53a5b6f3871 r20055:c53a5b6f3871 r20055:c53a5b6f3871 r20054:152d076eb07b r20054:152d076eb07b r20054:152d076eb07b r20054:152d076eb07b r20847:f74050098552 r20847:f74050098552 r20349:2189c86179e8 r20348:d6fd0cf0c673 r20052:c9d8caacda1b r13282:5abfbbdbe99a r13282:5abfbbdbe99a r13282:5abfbbdbe99a r17101:93f76317eea0 r17101:93f76317eea0 r17101:93f76317eea0 r13282:5abfbbdbe99a r13282:5abfbbdbe99a r13282:5abfbbdbe99a r13282:5abfbbdbe99a r13282:5abfbbdbe99a r13282:5abfbbdbe99a r13282:5abfbbdbe99a r13282:5abfbbdbe99a r13276:3604b09589ee r13276:3604b09589ee r7010:fd8e3ec6f727 | /* $Id$ */
/*
* 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 cargopacket.h Base class for cargo packets. */
#ifndef CARGOPACKET_H
#define CARGOPACKET_H
#include "core/pool_type.hpp"
#include "economy_type.h"
#include "station_type.h"
#include "order_type.h"
#include "cargo_type.h"
#include "vehicle_type.h"
#include "core/multimap.hpp"
#include <list>
/** Unique identifier for a single cargo packet. */
typedef uint32 CargoPacketID;
struct CargoPacket;
/** Type of the pool for cargo packets for a little over 16 million packets. */
typedef Pool<CargoPacket, CargoPacketID, 1024, 0xFFF000, PT_NORMAL, true, false> CargoPacketPool;
/** The actual pool with cargo packets. */
extern CargoPacketPool _cargopacket_pool;
struct GoodsEntry; // forward-declare for Stage() and RerouteStalePackets()
template <class Tinst, class Tcont> class CargoList;
class StationCargoList; // forward-declare, so we can use it in VehicleCargoList.
extern const struct SaveLoad *GetCargoPacketDesc();
typedef uint32 TileOrStationID;
/**
* Container for cargo from the same location and time.
*/
struct CargoPacket : CargoPacketPool::PoolItem<&_cargopacket_pool> {
private:
Money feeder_share; ///< Value of feeder pickup to be paid for on delivery of cargo.
uint16 count; ///< The amount of cargo in this packet.
byte days_in_transit; ///< Amount of days this packet has been in transit.
SourceTypeByte source_type; ///< Type of \c source_id.
SourceID source_id; ///< Index of source, INVALID_SOURCE if unknown/invalid.
StationID source; ///< The station where the cargo came from first.
TileIndex source_xy; ///< The origin of the cargo (first station in feeder chain).
union {
TileOrStationID loaded_at_xy; ///< Location where this cargo has been loaded into the vehicle.
TileOrStationID next_station; ///< Station where the cargo wants to go next.
};
/** The CargoList caches, thus needs to know about it. */
template <class Tinst, class Tcont> friend class CargoList;
friend class VehicleCargoList;
friend class StationCargoList;
/** We want this to be saved, right? */
friend const struct SaveLoad *GetCargoPacketDesc();
public:
/** Maximum number of items in a single cargo packet. */
static const uint16 MAX_COUNT = UINT16_MAX;
CargoPacket();
CargoPacket(StationID source, TileIndex source_xy, uint16 count, SourceType source_type, SourceID source_id);
CargoPacket(uint16 count, byte days_in_transit, StationID source, TileIndex source_xy, TileIndex loaded_at_xy, Money feeder_share = 0, SourceType source_type = ST_INDUSTRY, SourceID source_id = INVALID_SOURCE);
/** Destroy the packet. */
~CargoPacket() { }
CargoPacket *Split(uint new_size);
void Merge(CargoPacket *cp);
void Reduce(uint count);
/**
* Sets the tile where the packet was loaded last.
* @param load_place Tile where the packet was loaded last.
*/
void SetLoadPlace(TileIndex load_place) { this->loaded_at_xy = load_place; }
/**
* Sets the station where the packet is supposed to go next.
* @param next_station Next station the packet should go to.
*/
void SetNextStation(StationID next_station) { this->next_station = next_station; }
/**
* Adds some feeder share to the packet.
* @param new_share Feeder share to be added.
*/
void AddFeederShare(Money new_share) { this->feeder_share += new_share; }
/**
* Gets the number of 'items' in this packet.
* @return Item count.
*/
inline uint16 Count() const
{
return this->count;
}
/**
* Gets the amount of money already paid to earlier vehicles in
* the feeder chain.
* @return Feeder share.
*/
inline Money FeederShare() const
{
return this->feeder_share;
}
/**
* Gets part of the amount of money already paid to earlier vehicles in
* the feeder chain.
* @param part Amount of cargo to get the share for.
* @return Feeder share for the given amount of cargo.
*/
inline Money FeederShare(uint part) const
{
return this->feeder_share * part / static_cast<uint>(this->count);
}
/**
* Gets the number of days this cargo has been in transit.
* This number isn't really in days, but in 2.5 days (CARGO_AGING_TICKS = 185 ticks) and
* it is capped at 255.
* @return Length this cargo has been in transit.
*/
inline byte DaysInTransit() const
{
return this->days_in_transit;
}
/**
* Gets the type of the cargo's source. industry, town or head quarter.
* @return Source type.
*/
inline SourceType SourceSubsidyType() const
{
return this->source_type;
}
/**
* Gets the ID of the cargo's source. An IndustryID, TownID or CompanyID.
* @return Source ID.
*/
inline SourceID SourceSubsidyID() const
{
return this->source_id;
}
/**
* Gets the ID of the station where the cargo was loaded for the first time.
* @return StationID.
*/
inline StationID SourceStation() const
{
return this->source;
}
/**
* Gets the coordinates of the cargo's source station.
* @return Source station's coordinates.
*/
inline TileIndex SourceStationXY() const
{
return this->source_xy;
}
/**
* Gets the coordinates of the cargo's last loading station.
* @return Last loading station's coordinates.
*/
inline TileIndex LoadedAtXY() const
{
return this->loaded_at_xy;
}
/**
* Gets the ID of station the cargo wants to go next.
* @return Next station for this packets.
*/
inline StationID NextStation() const
{
return this->next_station;
}
static void InvalidateAllFrom(SourceType src_type, SourceID src);
static void InvalidateAllFrom(StationID sid);
static void AfterLoad();
};
/**
* Iterate over all _valid_ cargo packets from the given start.
* @param var Variable used as "iterator".
* @param start Cargo packet ID of the first packet to iterate over.
*/
#define FOR_ALL_CARGOPACKETS_FROM(var, start) FOR_ALL_ITEMS_FROM(CargoPacket, cargopacket_index, var, start)
/**
* Iterate over all _valid_ cargo packets from the begin of the pool.
* @param var Variable used as "iterator".
*/
#define FOR_ALL_CARGOPACKETS(var) FOR_ALL_CARGOPACKETS_FROM(var, 0)
/**
* Simple collection class for a list of cargo packets.
* @tparam Tinst Actual instantiation of this cargo list.
*/
template <class Tinst, class Tcont>
class CargoList {
public:
/** The iterator for our container. */
typedef typename Tcont::iterator Iterator;
/** The reverse iterator for our container. */
typedef typename Tcont::reverse_iterator ReverseIterator;
/** The const iterator for our container. */
typedef typename Tcont::const_iterator ConstIterator;
/** The const reverse iterator for our container. */
typedef typename Tcont::const_reverse_iterator ConstReverseIterator;
/** Kind of actions that could be done with packets on move. */
enum MoveToAction {
MTA_BEGIN = 0,
MTA_TRANSFER = 0, ///< Transfer the cargo to the station.
MTA_DELIVER, ///< Deliver the cargo to some town or industry.
MTA_KEEP, ///< Keep the cargo in the vehicle.
MTA_LOAD, ///< Load the cargo from the station.
MTA_END,
NUM_MOVE_TO_ACTION = MTA_END
};
protected:
uint count; ///< Cache for the number of cargo entities.
uint cargo_days_in_transit; ///< Cache for the sum of number of days in transit of each entity; comparable to man-hours.
Tcont packets; ///< The cargo packets in this list.
void AddToCache(const CargoPacket *cp);
void RemoveFromCache(const CargoPacket *cp, uint count);
static bool TryMerge(CargoPacket *cp, CargoPacket *icp);
public:
/** Create the cargo list. */
CargoList() {}
~CargoList();
void OnCleanPool();
/**
* Returns a pointer to the cargo packet list (so you can iterate over it etc).
* @return Pointer to the packet list.
*/
inline const Tcont *Packets() const
{
return &this->packets;
}
/**
* Returns average number of days in transit for a cargo entity.
* @return The before mentioned number.
*/
inline uint DaysInTransit() const
{
return this->count == 0 ? 0 : this->cargo_days_in_transit / this->count;
}
void InvalidateCache();
};
typedef std::list<CargoPacket *> CargoPacketList;
/**
* CargoList that is used for vehicles.
*/
class VehicleCargoList : public CargoList<VehicleCargoList, CargoPacketList> {
protected:
/** The (direct) parent of this class. */
typedef CargoList<VehicleCargoList, CargoPacketList> Parent;
Money feeder_share; ///< Cache for the feeder share.
uint action_counts[NUM_MOVE_TO_ACTION]; ///< Counts of cargo to be transfered, delivered, kept and loaded.
template<class Taction>
void ShiftCargo(Taction action);
template<class Taction>
void PopCargo(Taction action);
/**
* Assert that the designation counts add up.
*/
inline void AssertCountConsistency() const
{
assert(this->action_counts[MTA_KEEP] +
this->action_counts[MTA_DELIVER] +
this->action_counts[MTA_TRANSFER] +
this->action_counts[MTA_LOAD] == this->count);
}
void AddToCache(const CargoPacket *cp);
void RemoveFromCache(const CargoPacket *cp, uint count);
void AddToMeta(const CargoPacket *cp, MoveToAction action);
void RemoveFromMeta(const CargoPacket *cp, MoveToAction action, uint count);
static MoveToAction ChooseAction(const CargoPacket *cp, StationID cargo_next,
StationID current_station, bool accepted, StationIDStack next_station);
public:
/** The station cargo list needs to control the unloading. */
friend class StationCargoList;
/** The super class ought to know what it's doing. */
friend class CargoList<VehicleCargoList, CargoPacketList>;
/** The vehicles have a cargo list (and we want that saved). */
friend const struct SaveLoad *GetVehicleDescription(VehicleType vt);
friend class CargoShift;
friend class CargoTransfer;
friend class CargoDelivery;
template<class Tsource>
friend class CargoRemoval;
friend class CargoReturn;
friend class VehicleCargoReroute;
/**
* Returns source of the first cargo packet in this list.
* @return The before mentioned source.
*/
inline StationID Source() const
{
return this->count == 0 ? INVALID_STATION : this->packets.front()->source;
}
/**
* Returns total sum of the feeder share for all packets.
* @return The before mentioned number.
*/
inline Money FeederShare() const
{
return this->feeder_share;
}
/**
* Returns the amount of cargo designated for a given purpose.
* @param action Action the cargo is designated for.
* @return Amount of cargo designated for the given action.
*/
inline uint ActionCount(MoveToAction action) const
{
return this->action_counts[action];
}
/**
* Returns sum of cargo on board the vehicle (ie not only
* reserved).
* @return Cargo on board the vehicle.
*/
inline uint StoredCount() const
{
return this->count - this->action_counts[MTA_LOAD];
}
/**
* Returns sum of cargo, including reserved cargo.
* @return Sum of cargo.
*/
inline uint TotalCount() const
{
return this->count;
}
/**
* Returns sum of reserved cargo.
* @return Sum of reserved cargo.
*/
inline uint ReservedCount() const
{
return this->action_counts[MTA_LOAD];
}
/**
* Returns sum of cargo to be moved out of the vehicle at the current station.
* @return Cargo to be moved.
*/
inline uint UnloadCount() const
{
return this->action_counts[MTA_TRANSFER] + this->action_counts[MTA_DELIVER];
}
/**
* Returns the sum of cargo to be kept in the vehicle at the current station.
* @return Cargo to be kept or loaded.
*/
inline uint RemainingCount() const
{
return this->action_counts[MTA_KEEP] + this->action_counts[MTA_LOAD];
}
void Append(CargoPacket *cp, MoveToAction action = MTA_KEEP);
void AgeCargo();
void InvalidateCache();
void SetTransferLoadPlace(TileIndex xy);
bool Stage(bool accepted, StationID current_station, StationIDStack next_station, uint8 order_flags, const GoodsEntry *ge, CargoPayment *payment);
/**
* Marks all cargo in the vehicle as to be kept. This is mostly useful for
* loading old savegames. When loading is aborted the reserved cargo has
* to be returned first.
*/
inline void KeepAll()
{
this->action_counts[MTA_DELIVER] = this->action_counts[MTA_TRANSFER] = this->action_counts[MTA_LOAD] = 0;
this->action_counts[MTA_KEEP] = this->count;
}
/* Methods for moving cargo around. First parameter is always maximum
* amount of cargo to be moved. Second parameter is destination (if
* applicable), return value is amount of cargo actually moved. */
template<MoveToAction Tfrom, MoveToAction Tto>
uint Reassign(uint max_move, TileOrStationID update = INVALID_TILE);
uint Return(uint max_move, StationCargoList *dest, StationID next_station);
uint Unload(uint max_move, StationCargoList *dest, CargoPayment *payment);
uint Shift(uint max_move, VehicleCargoList *dest);
uint Truncate(uint max_move = UINT_MAX);
uint Reroute(uint max_move, VehicleCargoList *dest, StationID avoid, StationID avoid2, const GoodsEntry *ge);
/**
* Are two the two CargoPackets mergeable in the context of
* a list of CargoPackets for a Vehicle?
* @param cp1 First CargoPacket.
* @param cp2 Second CargoPacket.
* @return True if they are mergeable.
*/
static bool AreMergable(const CargoPacket *cp1, const CargoPacket *cp2)
{
return cp1->source_xy == cp2->source_xy &&
cp1->days_in_transit == cp2->days_in_transit &&
cp1->source_type == cp2->source_type &&
cp1->source_id == cp2->source_id &&
cp1->loaded_at_xy == cp2->loaded_at_xy;
}
};
typedef MultiMap<StationID, CargoPacket *> StationCargoPacketMap;
typedef std::map<StationID, uint> StationCargoAmountMap;
/**
* CargoList that is used for stations.
*/
class StationCargoList : public CargoList<StationCargoList, StationCargoPacketMap> {
protected:
/** The (direct) parent of this class. */
typedef CargoList<StationCargoList, StationCargoPacketMap> Parent;
uint reserved_count; ///< Amount of cargo being reserved for loading.
public:
/** The super class ought to know what it's doing. */
friend class CargoList<StationCargoList, StationCargoPacketMap>;
/** The stations, via GoodsEntry, have a CargoList. */
friend const struct SaveLoad *GetGoodsDesc();
friend class CargoLoad;
friend class CargoTransfer;
template<class Tsource>
friend class CargoRemoval;
friend class CargoReservation;
friend class CargoReturn;
friend class StationCargoReroute;
static void InvalidateAllFrom(SourceType src_type, SourceID src);
template<class Taction>
bool ShiftCargo(Taction &action, StationID next);
template<class Taction>
uint ShiftCargo(Taction action, StationIDStack next, bool include_invalid);
void Append(CargoPacket *cp, StationID next);
/**
* Check for cargo headed for a specific station.
* @param next Station the cargo is headed for.
* @return If there is any cargo for that station.
*/
inline bool HasCargoFor(StationIDStack next) const
{
while (!next.IsEmpty()) {
if (this->packets.find(next.Pop()) != this->packets.end()) return true;
}
/* Packets for INVALID_STTION can go anywhere. */
return this->packets.find(INVALID_STATION) != this->packets.end();
}
/**
* Returns source of the first cargo packet in this list.
* @return The before mentioned source.
*/
inline StationID Source() const
{
return this->count == 0 ? INVALID_STATION : this->packets.begin()->second.front()->source;
}
/**
* Returns sum of cargo still available for loading at the sation.
* (i.e. not counting cargo which is already reserved for loading)
* @return Cargo on board the vehicle.
*/
inline uint AvailableCount() const
{
return this->count;
}
/**
* Returns sum of cargo reserved for loading onto vehicles.
* @return Cargo reserved for loading.
*/
inline uint ReservedCount() const
{
return this->reserved_count;
}
/**
* Returns total count of cargo at the station, including
* cargo which is already reserved for loading.
* @return Total cargo count.
*/
inline uint TotalCount() const
{
return this->count + this->reserved_count;
}
/* Methods for moving cargo around. First parameter is always maximum
* amount of cargo to be moved. Second parameter is destination (if
* applicable), return value is amount of cargo actually moved. */
uint Reserve(uint max_move, VehicleCargoList *dest, TileIndex load_place, StationIDStack next);
uint Load(uint max_move, VehicleCargoList *dest, TileIndex load_place, StationIDStack next);
uint Truncate(uint max_move = UINT_MAX, StationCargoAmountMap *cargo_per_source = NULL);
uint Reroute(uint max_move, StationCargoList *dest, StationID avoid, StationID avoid2, const GoodsEntry *ge);
/**
* Are two the two CargoPackets mergeable in the context of
* a list of CargoPackets for a Vehicle?
* @param cp1 First CargoPacket.
* @param cp2 Second CargoPacket.
* @return True if they are mergeable.
*/
static bool AreMergable(const CargoPacket *cp1, const CargoPacket *cp2)
{
return cp1->source_xy == cp2->source_xy &&
cp1->days_in_transit == cp2->days_in_transit &&
cp1->source_type == cp2->source_type &&
cp1->source_id == cp2->source_id;
}
};
#endif /* CARGOPACKET_H */
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