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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 vehiclelist.cpp Lists of vehicles. */
#include "stdafx.h"
#include "vehicle_gui.h"
#include "train.h"
#include "vehiclelist.h"
/**
* Pack a VehicleListIdentifier in a single uint32.
* @return The packed identifier.
*/
uint32 VehicleListIdentifier::Pack()
{
assert(this->company < (1 << 4));
assert(this->type < (1 << 3));
assert(this->vtype < (1 << 2));
assert(this->index < (1 << 20));
return this->company << 28 | this->type << 23 | this->vtype << 26 | this->index;
}
/**
* Unpack a VehicleListIdentifier from a single uint32.
* @param data The data to unpack.
* @return true iff the data was valid (enough).
*/
bool VehicleListIdentifier::Unpack(uint32 data)
{
this->company = (CompanyID)GB(data, 28, 4);
this->type = (VehicleListType)GB(data, 23, 3);
this->vtype = (VehicleType)GB(data, 26, 2);
this->index = GB(data, 0, 20);
return this->type < VLT_END;
}
/**
* Decode a packed vehicle list identifier into a new one.
* @param data The data to unpack.
*/
VehicleListIdentifier::VehicleListIdentifier(uint32 data)
{
bool ret = this->Unpack(data);
assert(ret);
}
/**
* Generate a list of vehicles inside a depot.
* @param type Type of vehicle
* @param tile The tile the depot is located on
* @param engines Pointer to list to add vehicles to
* @param wagons Pointer to list to add wagons to (can be NULL)
* @param individual_wagons If true add every wagon to #wagons which is not attached to an engine. If false only add the first wagon of every row.
*/
void BuildDepotVehicleList(VehicleType type, TileIndex tile, VehicleList *engines, VehicleList *wagons, bool individual_wagons)
{
engines->Clear();
if (wagons != NULL && wagons != engines) wagons->Clear();
const Vehicle *v;
FOR_ALL_VEHICLES(v) {
/* General tests for all vehicle types */
if (v->type != type) continue;
if (v->tile != tile) continue;
switch (type) {
case VEH_TRAIN: {
const Train *t = Train::From(v);
if (t->IsArticulatedPart() || t->IsRearDualheaded()) continue;
if (t->track != TRACK_BIT_DEPOT) continue;
if (wagons != NULL && t->First()->IsFreeWagon()) {
if (individual_wagons || t->IsFreeWagon()) *wagons->Append() = t;
continue;
}
break;
}
default:
if (!v->IsInDepot()) continue;
break;
}
if (!v->IsPrimaryVehicle()) continue;
*engines->Append() = v;
}
/* Ensure the lists are not wasting too much space. If the lists are fresh
* (i.e. built within a command) then this will actually do nothing. */
engines->Compact();
if (wagons != NULL && wagons != engines) wagons->Compact();
}
/**
* Generate a list of vehicles based on window type.
* @param list Pointer to list to add vehicles to
* @param vli The identifier of this vehicle list.
* @return false if invalid list is requested
*/
bool GenerateVehicleSortList(VehicleList *list, const VehicleListIdentifier &vli)
{
list->Clear();
const Vehicle *v;
switch (vli.type) {
case VL_STATION_LIST:
FOR_ALL_VEHICLES(v) {
if (v->type == vli.vtype && v->IsPrimaryVehicle()) {
const Order *order;
FOR_VEHICLE_ORDERS(v, order) {
if ((order->IsType(OT_GOTO_STATION) || order->IsType(OT_GOTO_WAYPOINT) || order->IsType(OT_AUTOMATIC))
&& order->GetDestination() == vli.index) {
*list->Append() = v;
break;
}
}
}
}
break;
case VL_SHARED_ORDERS:
/* Add all vehicles from this vehicle's shared order list */
v = Vehicle::GetIfValid(vli.index);
if (v == NULL || v->type != vli.vtype || !v->IsPrimaryVehicle()) return false;
for (; v != NULL; v = v->NextShared()) {
*list->Append() = v;
}
break;
case VL_GROUP_LIST:
if (vli.index != ALL_GROUP) {
FOR_ALL_VEHICLES(v) {
if (v->type == vli.vtype && v->IsPrimaryVehicle() &&
v->owner == vli.company && v->group_id == vli.index) {
*list->Append() = v;
}
}
break;
}
/* FALL THROUGH */
case VL_STANDARD:
FOR_ALL_VEHICLES(v) {
if (v->type == vli.vtype && v->owner == vli.company && v->IsPrimaryVehicle()) {
*list->Append() = v;
}
}
break;
case VL_DEPOT_LIST:
FOR_ALL_VEHICLES(v) {
if (v->type == vli.vtype && v->IsPrimaryVehicle()) {
const Order *order;
FOR_VEHICLE_ORDERS(v, order) {
if (order->IsType(OT_GOTO_DEPOT) && !(order->GetDepotActionType() & ODATFB_NEAREST_DEPOT) && order->GetDestination() == vli.index) {
*list->Append() = v;
break;
}
}
}
}
break;
default: return false;
}
list->Compact();
return true;
}
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