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/* $Id$ */
/*
* 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 cargomonitor.cpp Implementation of the cargo transport monitoring. */
#include "stdafx.h"
#include "cargomonitor.h"
#include "station_base.h"
CargoMonitorMap _cargo_pickups; ///< Map of monitored pick-ups to the amount since last query/activation.
CargoMonitorMap _cargo_deliveries; ///< Map of monitored deliveries to the amount since last query/activation.
/** Clear all pick-up cargo monitors. */
void ClearCargoPickupMonitoring()
{
_cargo_pickups.clear();
}
/** Clear all delivery cargo monitors. */
void ClearCargoDeliveryMonitoring()
{
_cargo_deliveries.clear();
}
/**
* Get and reset the amount associated with a cargo monitor.
* @param[in,out] monitor_map Monitoring map to search (and reset for the queried entry).
* @param monitor Cargo monitor to query/reset.
* @param keep_monitoring After returning from this call, continue monitoring.
* @return Amount collected since last query/activation for the monitored combination.
*/
static uint32 GetAmount(CargoMonitorMap &monitor_map, CargoMonitorID monitor, bool keep_monitoring)
{
CargoMonitorMap::iterator iter = monitor_map.find(monitor);
if (iter == monitor_map.end()) {
if (keep_monitoring) {
std::pair<CargoMonitorID, uint32> p(monitor, 0);
monitor_map.insert(p);
}
return 0;
} else {
uint32 result = iter->second;
iter->second = 0;
if (!keep_monitoring) monitor_map.erase(iter);
return result;
}
}
/**
* Get the amount of cargo delivered for the given cargo monitor since activation or last query.
* @param monitor Cargo monitor to query.
* @param keep_monitoring After returning from this call, continue monitoring.
* @return Amount of delivered cargo for the monitored combination.
*/
uint32 GetDeliveryAmount(CargoMonitorID monitor, bool keep_monitoring)
{
return GetAmount(_cargo_deliveries, monitor, keep_monitoring);
}
/**
* Get the amount of cargo picked up for the given cargo monitor since activation or last query.
* @param monitor Monitoring number to query.
* @param keep_monitoring After returning from this call, continue monitoring.
* @return Amount of picked up cargo for the monitored combination.
* @note Cargo pick up is counted on final delivery, to prevent users getting credit for picking up cargo without delivering it.
*/
uint32 GetPickupAmount(CargoMonitorID monitor, bool keep_monitoring)
{
return GetAmount(_cargo_pickups, monitor, keep_monitoring);
}
/**
* Cargo was delivered to its final destination, update the pickup and delivery maps.
* @param cargo_type type of cargo.
* @param company company delivering the cargo.
* @param amount Amount of cargo delivered.
* @param src_type type of \a src.
* @param src index of source.
* @param st station where the cargo is delivered to.
*/
void AddCargoDelivery(CargoID cargo_type, CompanyID company, uint32 amount, SourceType src_type, SourceID src, const Station *st)
{
if (amount == 0) return;
if (src != INVALID_SOURCE) {
/* Handle pickup update. */
switch (src_type) {
case ST_INDUSTRY: {
CargoMonitorID num = EncodeCargoIndustryMonitor(company, cargo_type, src);
CargoMonitorMap::iterator iter = _cargo_pickups.find(num);
if (iter != _cargo_pickups.end()) iter->second += amount;
break;
}
case ST_TOWN: {
CargoMonitorID num = EncodeCargoTownMonitor(company, cargo_type, src);
CargoMonitorMap::iterator iter = _cargo_pickups.find(num);
if (iter != _cargo_pickups.end()) iter->second += amount;
break;
}
default: break;
}
}
/* Handle delivery.
* Note that delivery in the right area is sufficient to prevent trouble with neighbouring industries or houses. */
/* Town delivery. */
CargoMonitorID num = EncodeCargoTownMonitor(company, cargo_type, st->town->index);
CargoMonitorMap::iterator iter = _cargo_deliveries.find(num);
if (iter != _cargo_deliveries.end()) iter->second += amount;
/* Industry delivery. */
for (const Industry * const *ip = st->industries_near.Begin(); ip != st->industries_near.End(); ip++) {
CargoMonitorID num = EncodeCargoIndustryMonitor(company, cargo_type, (*ip)->index);
CargoMonitorMap::iterator iter = _cargo_deliveries.find(num);
if (iter != _cargo_deliveries.end()) iter->second += amount;
}
}
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