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
|
/* $Id$ */
/*
* 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 cargoaction.cpp Implementation of cargo actions. */
#include "stdafx.h"
#include "economy_base.h"
#include "cargoaction.h"
/**
* Decides if a packet needs to be split.
* @param cp Packet to be either split or moved in one piece.
* @return Either new packet if splitting was necessary or the given one
* otherwise.
*/
template<class Tsource, class Tdest>
CargoPacket *CargoMovement<Tsource, Tdest>::Preprocess(CargoPacket *cp)
{
if (this->max_move < cp->Count()) {
cp = cp->Split(this->max_move);
this->max_move = 0;
} else {
this->max_move -= cp->Count();
}
return cp;
}
/**
* Determines the amount of cargo to be removed from a packet and removes that
* from the metadata of the list.
* @param cp Packet to be removed completely or partially.
* @return Amount of cargo to be removed.
*/
template<class Tsource>
uint CargoRemoval<Tsource>::Preprocess(CargoPacket *cp)
{
if (this->max_move >= cp->Count()) {
this->max_move -= cp->Count();
return cp->Count();
} else {
uint ret = this->max_move;
this->max_move = 0;
return ret;
}
}
/**
* Finalize cargo removal. Either delete the packet or reduce it.
* @param cp Packet to be removed or reduced.
* @param remove Amount of cargo to be removed.
* @return True if the packet was deleted, False if it was reduced.
*/
template<class Tsource>
bool CargoRemoval<Tsource>::Postprocess(CargoPacket *cp, uint remove)
{
if (remove == cp->Count()) {
delete cp;
return true;
} else {
cp->Reduce(remove);
return false;
}
}
/**
* Removes some cargo from a StationCargoList.
* @param cp Packet to be removed.
* @return True if the packet was completely delivered, false if only part of
* it was.
*/
template<>
bool CargoRemoval<StationCargoList>::operator()(CargoPacket *cp)
{
uint remove = this->Preprocess(cp);
this->source->RemoveFromCache(cp, remove);
return this->Postprocess(cp, remove);
}
/**
* Removes some cargo from a VehicleCargoList.
* @param cp Packet to be removed.
* @return True if the packet was completely delivered, false if only part of
* it was.
*/
template<>
bool CargoRemoval<VehicleCargoList>::operator()(CargoPacket *cp)
{
uint remove = this->Preprocess(cp);
this->source->RemoveFromMeta(cp, VehicleCargoList::MTA_KEEP, remove);
return this->Postprocess(cp, remove);
}
/**
* Delivers some cargo.
* @param cp Packet to be delivered.
* @return True if the packet was completely delivered, false if only part of
* it was.
*/
bool CargoDelivery::operator()(CargoPacket *cp)
{
uint remove = this->Preprocess(cp);
this->source->RemoveFromMeta(cp, VehicleCargoList::MTA_DELIVER, remove);
this->payment->PayFinalDelivery(cp, remove);
return this->Postprocess(cp, remove);
}
/**
* Loads some cargo onto a vehicle.
* @param cp Packet to be loaded.
* @return True if the packet was completely loaded, false if part of it was.
*/
bool CargoLoad::operator()(CargoPacket *cp)
{
CargoPacket *cp_new = this->Preprocess(cp);
if (cp_new == NULL) return false;
cp_new->SetLoadPlace(this->load_place);
this->source->RemoveFromCache(cp_new, cp_new->Count());
this->destination->Append(cp_new, VehicleCargoList::MTA_KEEP);
return cp_new == cp;
}
/**
* Reserves some cargo for loading.
* @param cp Packet to be reserved.
* @return True if the packet was completely reserved, false if part of it was.
*/
bool CargoReservation::operator()(CargoPacket *cp)
{
CargoPacket *cp_new = this->Preprocess(cp);
if (cp_new == NULL) return false;
cp_new->SetLoadPlace(this->load_place);
this->source->reserved_count += cp_new->Count();
this->source->RemoveFromCache(cp_new, cp_new->Count());
this->destination->Append(cp_new, VehicleCargoList::MTA_LOAD);
return cp_new == cp;
}
/**
* Returns some reserved cargo.
* @param cp Packet to be returned.
* @return True if the packet was completely returned, false if part of it was.
*/
bool CargoReturn::operator()(CargoPacket *cp)
{
CargoPacket *cp_new = this->Preprocess(cp);
if (cp_new == NULL) cp_new = cp;
assert(cp_new->Count() <= this->destination->reserved_count);
this->source->RemoveFromMeta(cp_new, VehicleCargoList::MTA_LOAD, cp_new->Count());
this->destination->reserved_count -= cp_new->Count();
this->destination->Append(cp_new);
return cp_new == cp;
}
/**
* Transfers some cargo from a vehicle to a station.
* @param cp Packet to be transfered.
* @return True if the packet was completely reserved, false if part of it was.
*/
bool CargoTransfer::operator()(CargoPacket *cp)
{
CargoPacket *cp_new = this->Preprocess(cp);
if (cp_new == NULL) return false;
this->source->RemoveFromMeta(cp_new, VehicleCargoList::MTA_TRANSFER, cp_new->Count());
cp_new->AddFeederShare(this->payment->PayTransfer(cp_new, cp_new->Count()));
this->destination->Append(cp_new);
return cp_new == cp;
}
/**
* Shifts some cargo from a vehicle to another one.
* @param cp Packet to be shifted.
* @return True if the packet was completely shifted, false if part of it was.
*/
bool CargoShift::operator()(CargoPacket *cp)
{
CargoPacket *cp_new = this->Preprocess(cp);
if (cp_new == NULL) cp_new = cp;
this->source->RemoveFromMeta(cp_new, VehicleCargoList::MTA_KEEP, cp_new->Count());
this->destination->Append(cp_new, VehicleCargoList::MTA_KEEP);
return cp_new == cp;
}
template uint CargoRemoval<VehicleCargoList>::Preprocess(CargoPacket *cp);
template uint CargoRemoval<StationCargoList>::Preprocess(CargoPacket *cp);
template bool CargoRemoval<VehicleCargoList>::Postprocess(CargoPacket *cp, uint remove);
template bool CargoRemoval<StationCargoList>::Postprocess(CargoPacket *cp, uint remove);
|
