1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
|
/* $Id$ */
/** @file cargopacket.h Base class for cargo packets. */
#ifndef CARGOPACKET_H
#define CARGOPACKET_H
#include "oldpool.h"
#include "economy_type.h"
#include "tile_type.h"
#include "station_type.h"
#include <list>
struct BackuppedVehicle;
typedef uint32 CargoPacketID;
struct CargoPacket;
/** We want to use a pool */
DECLARE_OLD_POOL(CargoPacket, CargoPacket, 10, 1000)
/**
* Container for cargo from the same location and time
*/
struct CargoPacket : PoolItem<CargoPacket, CargoPacketID, &_CargoPacket_pool> {
Money feeder_share; ///< Value of feeder pickup to be paid for on delivery of cargo
TileIndex source_xy; ///< The origin of the cargo (first station in feeder chain)
TileIndex loaded_at_xy; ///< Location where this cargo has been loaded into the vehicle
StationID source; ///< The station where the cargo came from first
uint16 count; ///< The amount of cargo in this packet
byte days_in_transit; ///< Amount of days this packet has been in transit
bool paid_for; ///< Have we been paid for this cargo packet?
/**
* Creates a new cargo packet
* @param source the source of the packet
* @param count the number of cargo entities to put in this packet
* @pre count != 0 || source == INVALID_STATION
*/
CargoPacket(StationID source = INVALID_STATION, uint16 count = 0);
/** Destroy the packet */
virtual ~CargoPacket();
/**
* Is this a valid cargo packet ?
* @return true if and only it is valid
*/
inline bool IsValid() const { return this->count != 0; }
/**
* Checks whether the cargo packet is from (exactly) the same source
* in time and location.
* @param cp the cargo packet to compare to
* @return true if and only if days_in_transit and source_xy are equal
*/
bool SameSource(const CargoPacket *cp) const;
void RestoreBackup() const;
};
/**
* Iterate over all _valid_ cargo packets from the given start
* @param cp the variable used as "iterator"
* @param start the cargo packet ID of the first packet to iterate over
*/
#define FOR_ALL_CARGOPACKETS_FROM(cp, start) for (cp = GetCargoPacket(start); cp != NULL; cp = (cp->index + 1U < GetCargoPacketPoolSize()) ? GetCargoPacket(cp->index + 1U) : NULL) if (cp->IsValid())
/**
* Iterate over all _valid_ cargo packets from the begin of the pool
* @param cp the variable used as "iterator"
*/
#define FOR_ALL_CARGOPACKETS(cp) FOR_ALL_CARGOPACKETS_FROM(cp, 0)
extern void SaveLoad_STNS(Station *st);
/**
* Simple collection class for a list of cargo packets
*/
class CargoList {
public:
/** List of cargo packets */
typedef std::list<CargoPacket *> List;
/** Kind of actions that could be done with packets on move */
enum MoveToAction {
MTA_FINAL_DELIVERY, ///< "Deliver" the packet to the final destination, i.e. destroy the packet
MTA_CARGO_LOAD, ///< Load the packet onto a vehicle, i.e. set the last loaded station ID
MTA_OTHER ///< "Just" move the packet to another cargo list
};
private:
List packets; ///< The cargo packets in this list
bool empty; ///< Cache for whether this list is empty or not
uint count; ///< Cache for the number of cargo entities
bool unpaid_cargo; ///< Cache for the unpaid cargo
Money feeder_share; ///< Cache for the feeder share
StationID source; ///< Cache for the source of the packet
uint days_in_transit; ///< Cache for the number of days in transit
public:
friend struct BackuppedVehicle;
friend void SaveLoad_STNS(Station *st);
/** Create the cargo list */
CargoList() { this->InvalidateCache(); }
/** And destroy it ("frees" all cargo packets) */
~CargoList();
/**
* Returns a pointer to the cargo packet list (so you can iterate over it etc).
* @return pointer to the packet list
*/
const CargoList::List *Packets() const;
/**
* Ages the all cargo in this list
*/
void AgeCargo();
/**
* Checks whether this list is empty
* @return true if and only if the list is empty
*/
bool Empty() const;
/**
* Returns the number of cargo entities in this list
* @return the before mentioned number
*/
uint Count() const;
/**
* Is there some cargo that has not been paid for?
* @return true if and only if there is such a cargo
*/
bool UnpaidCargo() const;
/**
* Returns total sum of the feeder share for all packets
* @return the before mentioned number
*/
Money FeederShare() const;
/**
* Returns source of the first cargo packet in this list
* @return the before mentioned source
*/
StationID Source() const;
/**
* Returns average number of days in transit for a cargo entity
* @return the before mentioned number
*/
uint DaysInTransit() const;
/**
* Appends the given cargo packet
* @warning After appending this packet may not exist anymore!
* @note Do not use the cargo packet anymore after it has been appended to this CargoList!
* @param cp the cargo packet to add
* @pre cp != NULL
*/
void Append(CargoPacket *cp);
/**
* Truncates the cargo in this list to the given amount. It leaves the
* first count cargo entities and removes the rest.
* @param count the maximum amount of entities to be in the list after the command
*/
void Truncate(uint count);
/**
* Moves the given amount of cargo to another list.
* Depending on the value of mta the side effects of this function differ:
* - MTA_FINAL_DELIVERY: destroys the packets that do not originate from a specific station
* - MTA_CARGO_LOAD: sets the loaded_at_xy value of the moved packets
* - MTA_OTHER: just move without side effects
* @param dest the destination to move the cargo to
* @param count the amount of cargo entities to move
* @param mta how to handle the moving (side effects)
* @param data Depending on mta the data of this variable differs:
* - MTA_FINAL_DELIVERY - station ID of packet's origin not to remove
* - MTA_CARGO_LOAD - station's tile index of load
* - MTA_OTHER - unused
* @param mta == MTA_FINAL_DELIVERY || dest != NULL
* @return true if there are still packets that might be moved from this cargo list
*/
bool MoveTo(CargoList *dest, uint count, CargoList::MoveToAction mta = MTA_OTHER, uint data = 0);
/** Invalidates the cached data and rebuild it */
void InvalidateCache();
};
#endif /* CARGOPACKET_H */
|
