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/*
* 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"
#include "safeguards.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.
/**
* Helper method for #ClearCargoPickupMonitoring and #ClearCargoDeliveryMonitoring.
* Clears all monitors that belong to the specified company or all if #INVALID_OWNER
* is specified as company.
* @param cargo_monitor_map reference to the cargo monitor map to operate on.
* @param company company to clear cargo monitors for or #INVALID_OWNER if all cargo monitors should be cleared.
*/
static void ClearCargoMonitoring(CargoMonitorMap &cargo_monitor_map, CompanyID company = INVALID_OWNER)
{
if (company == INVALID_OWNER) {
cargo_monitor_map.clear();
return;
}
CargoMonitorMap::iterator next;
for (CargoMonitorMap::iterator it = cargo_monitor_map.begin(); it != cargo_monitor_map.end(); it = next) {
next = it;
next++;
if (DecodeMonitorCompany(it->first) == company) {
cargo_monitor_map.erase(it);
}
}
}
/**
* Clear all pick-up cargo monitors.
* @param company clear all pick-up monitors for this company or if #INVALID_OWNER
* is passed, all pick-up monitors are cleared regardless of company.
*/
void ClearCargoPickupMonitoring(CompanyID company)
{
ClearCargoMonitoring(_cargo_pickups, company);
}
/**
* Clear all delivery cargo monitors.
* @param company clear all delivery monitors for this company or if #INVALID_OWNER
* is passed, all delivery monitors are cleared regardless of company.
*/
void ClearCargoDeliveryMonitoring(CompanyID company)
{
ClearCargoMonitoring(_cargo_deliveries, company);
}
/**
* 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 int32 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 {
int32 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.
*/
int32 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.
*/
int32 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.
* @param dest industry index where the cargo is delivered to.
*/
void AddCargoDelivery(CargoID cargo_type, CompanyID company, uint32 amount, SourceType src_type, SourceID src, const Station *st, IndustryID dest)
{
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 (Industry *ind : st->industries_near) {
if (ind->index != dest) continue;
CargoMonitorID num = EncodeCargoIndustryMonitor(company, cargo_type, ind->index);
CargoMonitorMap::iterator iter = _cargo_deliveries.find(num);
if (iter != _cargo_deliveries.end()) iter->second += amount;
}
}
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