Files
@ r20053:1f0b373e9dce
Branch filter:
Location: cpp/openttd-patchpack/source/src/cargoaction.cpp
r20053:1f0b373e9dce
4.1 KiB
text/x-c
(svn r25011) -Codechange: allow vehicle transfer and profit text effects to be shown at the same time (fonsinchen)
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 | /* $Id$ */
/*
* 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();
this->source->RemoveFromCache(cp, cp->Count());
return cp->Count();
} else {
uint ret = this->max_move;
this->source->RemoveFromCache(cp, ret);
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;
}
}
/**
* 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->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);
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->RemoveFromCache(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->RemoveFromCache(cp_new, cp_new->Count());
this->destination->Append(cp_new);
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);
|