Import infrastructure sharing patch
Strip trailing whitespace Remove a leftover line form settings.ini http://www.tt-forums.net/viewtopic.php?p=1008843#p1008843pull/3/head
patch-import
9 years ago
committed by
Jonathan G Rennison
parent
856896c36e
commit
ee791055f9
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/* $Id$ */
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/*
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* This file is part of OpenTTD.
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* 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.
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* 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.
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* 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/>.
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*/
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/** @file infrastructure.cpp Implementation of infrastructure sharing */
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#include "stdafx.h"
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#include "infrastructure_func.h"
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#include "train.h"
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#include "aircraft.h"
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#include "error.h"
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#include "vehicle_func.h"
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#include "station_base.h"
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#include "depot_base.h"
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#include "pbs.h"
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#include "signal_func.h"
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#include "window_func.h"
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#include "gui.h"
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#include "pathfinder/yapf/yapf_cache.h"
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#include "company_base.h"
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#include "table/strings.h"
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/**
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* Helper function for transferring sharing fees
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* @param v The vehicle involved
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* @param infra_owner The owner of the infrastructure
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* @param cost Amount to transfer as money fraction (shifted 8 bits to the left)
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*/
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static void PaySharingFee(Vehicle *v, Owner infra_owner, Money cost)
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{
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Company *c = Company::Get(v->owner);
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if (!_settings_game.economy.sharing_payment_in_debt) {
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/* Do not allow fee payment to drop (money - loan) below 0. */
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cost = min(cost, (c->money - c->current_loan) << 8);
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if (cost <= 0) return;
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}
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v->profit_this_year -= cost;
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SubtractMoneyFromCompanyFract(v->owner, CommandCost(EXPENSES_SHARING_COST, cost));
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SubtractMoneyFromCompanyFract(infra_owner, CommandCost(EXPENSES_SHARING_INC, -cost));
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}
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/**
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* Pay the fee for spending a single tick inside a station.
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* @param v The vehicle that is using the station.
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* @param st The station that it uses.
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*/
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void PayStationSharingFee(Vehicle *v, const Station *st)
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{
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if (v->owner == st->owner || st->owner == OWNER_NONE || v->type == VEH_TRAIN) return;
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Money cost = _settings_game.economy.sharing_fee[v->type];
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PaySharingFee(v, st->owner, (cost << 8) / DAY_TICKS);
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}
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uint16 is2_GetWeight(Train *v)
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{
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uint16 weight = (CargoSpec::Get(v->cargo_type)->weight * v->cargo.Count() * FreightWagonMult(v->cargo_type)) / 16;
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/* Vehicle weight is not added for articulated parts. */
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if (!v->IsArticulatedPart()) {
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weight += GetVehicleProperty(v, PROP_TRAIN_WEIGHT, RailVehInfo(v->engine_type)->weight);
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}
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/* Powered wagons have extra weight added. */
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if (HasBit(v->flags, VRF_POWEREDWAGON)) {
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weight += RailVehInfo(v->gcache.first_engine)->pow_wag_weight;
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}
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return weight;
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}
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/**
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* Pay the daily fee for trains on foreign tracks.
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* @param v The vehicle to pay the fee for.
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*/
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void PayDailyTrackSharingFee(Train *v)
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{
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Owner owner = GetTileOwner(v->tile);
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if (owner == v->owner) return;
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Money cost = _settings_game.economy.sharing_fee[VEH_TRAIN] << 8;
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/* Cost is calculated per 1000 tonnes */
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cost = cost * is2_GetWeight(v) / 1000;
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/* Only pay the required fraction */
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cost = cost * v->running_ticks / DAY_TICKS;
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if (cost != 0) PaySharingFee(v, owner, cost);
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}
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/**
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* Check whether a vehicle is in an allowed position.
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* @param v The vehicle to check.
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* @param owner Owner whose infrastructure is not allowed, because the company will be removed. Ignored if INVALID_OWNER.
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* @return True if the vehicle is compeletely in an allowed position.
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*/
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static bool VehiclePositionIsAllowed(const Vehicle *v, Owner owner = INVALID_OWNER)
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{
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switch (v->type) {
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case VEH_TRAIN:
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for (const Vehicle *u = v; u != NULL; u = u->Next()) {
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if (!IsInfraTileUsageAllowed(VEH_TRAIN, v->owner, u->tile) || GetTileOwner(u->tile) == owner) return false;
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}
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return true;
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case VEH_ROAD:
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for (const Vehicle *u = v; u != NULL; u = u->Next()) {
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if (IsRoadDepotTile(u->tile) || IsStandardRoadStopTile(u->tile)) {
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if (!IsInfraTileUsageAllowed(VEH_ROAD, v->owner, u->tile) || GetTileOwner(u->tile) == owner) return false;
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}
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}
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return true;
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case VEH_SHIP:
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if (IsShipDepotTile(v->tile) && v->IsStoppedInDepot()) {
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if (!IsInfraTileUsageAllowed(VEH_SHIP, v->owner, v->tile) || GetTileOwner(v->tile) == owner) return false;
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}
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return true;
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case VEH_AIRCRAFT: {
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const Aircraft *a = Aircraft::From(v);
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if (a->state != FLYING && Station::IsValidID(a->targetairport)) {
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Owner station_owner = Station::Get(a->targetairport)->owner;
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if (!IsInfraUsageAllowed(VEH_AIRCRAFT, a->owner, station_owner) || station_owner == owner) return false;
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}
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return true;
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}
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default: return true;
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}
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}
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/**
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* Check whether an order has a destination that is allowed.
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* I.e. it refers to a station/depot/waypoint the vehicle is allowed to visit.
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* @param order The order to check
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* @param v The vehicle this order belongs to.
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* @param owner Owner whose infrastructure is not allowed, because the company will be removed. Ignored if INVALID_OWNER.
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* @return True if the order has an allowed destination.
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*/
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static bool OrderDestinationIsAllowed(const Order *order, const Vehicle *v, Owner owner = INVALID_OWNER)
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{
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Owner dest_owner;
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switch (order->GetType()) {
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case OT_GOTO_STATION:
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case OT_GOTO_WAYPOINT: dest_owner = BaseStation::Get(order->GetDestination())->owner; break;
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case OT_GOTO_DEPOT: dest_owner = (v->type == VEH_AIRCRAFT) ? Station::Get(order->GetDestination())->owner : GetTileOwner(Depot::Get(order->GetDestination())->xy); break;
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case OT_LOADING: dest_owner = Station::Get(v->last_station_visited)->owner; break;
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default: return true;
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}
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return dest_owner != owner && IsInfraUsageAllowed(v->type, v->owner, dest_owner);
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}
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/**
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* Sell a vehicle, no matter where it may be.
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* @param v The vehicle to sell
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* @param give_money Do we actually need to give money to the vehicle owner?
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*/
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static void RemoveAndSellVehicle(Vehicle *v, bool give_money)
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{
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assert(v->Previous() == NULL);
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if (give_money) {
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/* compute total value and give that to the owner */
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Money value = 0;
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for (Vehicle *u = v->First(); u != NULL; u = u->Next()) {
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value += v->value;
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}
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CompanyID old = _current_company;
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_current_company = v->owner;
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SubtractMoneyFromCompany(CommandCost(EXPENSES_NEW_VEHICLES, -value));
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_current_company = old;
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}
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/* take special measures for trains, but not when sharing is disabled or when the train is a free wagon chain */
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if (_settings_game.economy.infrastructure_sharing[VEH_TRAIN] && v->type == VEH_TRAIN && Train::From(v)->IsFrontEngine()) {
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DeleteVisibleTrain(Train::From(v));
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} else {
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delete v;
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}
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}
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/**
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* Check all path reservations, and reserve a new path if the current path is invalid.
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*/
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static void FixAllReservations()
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{
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/* if this function is called, we can safely assume that sharing of rails is being switched off */
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assert(!_settings_game.economy.infrastructure_sharing[VEH_TRAIN]);
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Train *v;
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FOR_ALL_TRAINS(v) {
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if (!v->IsPrimaryVehicle() || (v->vehstatus & VS_CRASHED) != 0) continue;
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/* It might happen that the train reserved additional tracks,
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* but FollowTrainReservation can't detect those because they are no longer reachable.
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* detect this by first finding the end of the reservation,
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* then switch sharing on and try again. If these two ends differ,
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* unreserve the path, switch sharing off and try to reserve a new path */
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PBSTileInfo end_tile_info = FollowTrainReservation(v);
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/* first do a quick test to determine whether the next tile has any reservation at all */
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TileIndex next_tile = end_tile_info.tile + TileOffsByDiagDir(TrackdirToExitdir(end_tile_info.trackdir));
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/* If the next tile doesn't have a reservation at all, the reservation surely ends here. Thus all is well */
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if (GetReservedTrackbits(next_tile) == TRACK_BIT_NONE) continue;
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/* change sharing setting temporarily */
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_settings_game.economy.infrastructure_sharing[VEH_TRAIN] = true;
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PBSTileInfo end_tile_info2 = FollowTrainReservation(v);
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/* if these two reservation ends differ, unreserve the path and try to reserve a new path */
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if (end_tile_info.tile != end_tile_info2.tile || end_tile_info.trackdir != end_tile_info2.trackdir) {
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FreeTrainTrackReservation(v);
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_settings_game.economy.infrastructure_sharing[VEH_TRAIN] = false;
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TryPathReserve(v, true);
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} else {
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_settings_game.economy.infrastructure_sharing[VEH_TRAIN] = false;
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}
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}
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}
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/**
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* Check if a sharing change is possible.
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* If vehicles are still on others' infrastructure or using others' stations,
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* The change is not possible and false is returned.
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* @param type The type of vehicle whose setting will be changed.
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* @return True if the change can take place, false otherwise.
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*/
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bool CheckSharingChangePossible(VehicleType type)
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{
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if (type != VEH_AIRCRAFT) YapfNotifyTrackLayoutChange(INVALID_TILE, INVALID_TRACK);
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/* Only do something when sharing is being disabled */
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if (_settings_game.economy.infrastructure_sharing[type]) return true;
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StringID error_message = STR_NULL;
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Vehicle *v;
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FOR_ALL_VEHICLES(v) {
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if (type != v->type) continue;
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if (v->Previous() != NULL) continue;
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/* Check vehicle positiion */
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if (!VehiclePositionIsAllowed(v)) {
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error_message = STR_CONFIG_SETTING_SHARING_USED_BY_VEHICLES;
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/* Break immediately, this error message takes precedence over the others. */
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break;
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}
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/* Check current order */
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if (!OrderDestinationIsAllowed(&v->current_order, v)) {
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error_message = STR_CONFIG_SETTING_SHARING_ORDERS_TO_OTHERS;
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}
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/* Check order list */
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if (v->FirstShared() != v) continue;
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Order *o;
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FOR_VEHICLE_ORDERS(v, o) {
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if (!OrderDestinationIsAllowed(o, v)) {
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error_message = STR_CONFIG_SETTING_SHARING_ORDERS_TO_OTHERS;
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}
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}
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}
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if (error_message != STR_NULL) {
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ShowErrorMessage(error_message, INVALID_STRING_ID, WL_ERROR);
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return false;
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}
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if (type == VEH_TRAIN) FixAllReservations();
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return true;
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}
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/**
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* Handle the removal (through reset_company or bankruptcy) of a company.
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* i.e. remove all vehicles owned by that company or on its infrastructure,
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* and delete all now-invalid orders.
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* @param Owner the company to be removed.
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*/
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void HandleSharingCompanyDeletion(Owner owner)
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{
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YapfNotifyTrackLayoutChange(INVALID_TILE, INVALID_TRACK);
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Vehicle *v;
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FOR_ALL_VEHICLES(v) {
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if (!IsCompanyBuildableVehicleType(v) || v->Previous() != NULL) continue;
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/* vehicle position */
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if (v->owner == owner || !VehiclePositionIsAllowed(v, owner)) {
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RemoveAndSellVehicle(v, v->owner != owner);
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continue;
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}
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/* current order */
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if (!OrderDestinationIsAllowed(&v->current_order, v, owner)) {
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if (v->current_order.IsType(OT_LOADING)) {
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v->LeaveStation();
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} else {
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v->current_order.MakeDummy();
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}
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SetWindowDirty(WC_VEHICLE_VIEW, v->index);
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}
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/* order list */
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if (v->FirstShared() != v) continue;
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Order *o;
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int id = -1;
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FOR_VEHICLE_ORDERS(v, o) {
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id++;
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if (OrderDestinationIsAllowed(o, v, owner)) continue;
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o->MakeDummy();
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for (const Vehicle *w = v; w != NULL; w = w->NextShared()) {
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/* In GUI, simulate by removing the order and adding it back */
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InvalidateVehicleOrder(w, id | (INVALID_VEH_ORDER_ID << 8));
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InvalidateVehicleOrder(w, (id << 8) | INVALID_VEH_ORDER_ID);
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}
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}
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}
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}
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/**
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* Update all block signals on the map.
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* To be called after the setting for sharing of rails changes.
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* @param owner Owner whose signals to update. If INVALID_OWNER, update everything.
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*/
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void UpdateAllBlockSignals(Owner owner)
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{
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Owner last_owner = INVALID_OWNER;
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TileIndex tile = 0;
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do {
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if (IsTileType(tile, MP_RAILWAY) && HasSignals(tile)) {
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Owner track_owner = GetTileOwner(tile);
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if (owner != INVALID_OWNER && track_owner != owner) continue;
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if (!IsOneSignalBlock(track_owner, last_owner)) {
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/* Cannot update signals of two different companies in one run,
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* if these signal blocks are not joined */
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UpdateSignalsInBuffer();
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last_owner = track_owner;
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}
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TrackBits bits = GetTrackBits(tile);
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do {
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Track track = RemoveFirstTrack(&bits);
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if (HasSignalOnTrack(tile, track)) {
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AddTrackToSignalBuffer(tile, track, track_owner);
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}
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} while (bits != TRACK_BIT_NONE);
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} else if (IsLevelCrossingTile(tile) && (owner == INVALID_OWNER || GetTileOwner(tile) == owner)) {
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UpdateLevelCrossing(tile);
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}
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} while (++tile != MapSize());
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UpdateSignalsInBuffer();
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}
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@ -0,0 +1,107 @@
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/* $Id$ */
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/*
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* This file is part of OpenTTD.
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* 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.
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* 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.
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* 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/>.
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*/
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/** @file infrastructure_func.h Functions for access to (shared) infrastructure */
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#ifndef INFRASTRUCTURE_FUNC_H
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#define INFRASTRUCTURE_FUNC_H
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#include "vehicle_base.h"
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#include "settings_type.h"
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#include "command_type.h"
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#include "company_func.h"
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#include "tile_map.h"
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void PayStationSharingFee(Vehicle *v, const Station *st);
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void PayDailyTrackSharingFee(Train *v);
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bool CheckSharingChangePossible(VehicleType type);
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void HandleSharingCompanyDeletion(Owner owner);
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void UpdateAllBlockSignals(Owner owner = INVALID_OWNER);
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/**
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* Check whether a vehicle of a given owner and type can use the infrastrucutre of a given company.
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* @param type Type of vehicle we are talking about.
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* @param veh_owner Owner of the vehicle in question.
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* @param infra_owner The owner of the infrastructure.
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* @return True if infrastructure usage is allowed, false otherwise.
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*/
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static inline bool IsInfraUsageAllowed(VehicleType type, Owner veh_owner, Owner infra_owner)
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{
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return infra_owner == veh_owner || infra_owner == OWNER_NONE || _settings_game.economy.infrastructure_sharing[type];
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}
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/**
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* Check whether a vehicle of a given owner and type can use the infrastrucutre on a given tile.
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* @param type Type of vehicle we are talking about.
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* @param veh_owner Owner of the vehicle in question.
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* @param tile The tile that may or may not be used.
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* @return True if infrastructure usage is allowed, false otherwise.
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*/
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static inline bool IsInfraTileUsageAllowed(VehicleType type, Owner veh_owner, TileIndex tile)
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{
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return IsInfraUsageAllowed(type, veh_owner, GetTileOwner(tile));
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}
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/**
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* Is a vehicle owned by _current_company allowed to use the infrastructure of infra_owner?
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* If this is not allowed, this function provides the appropriate error message.
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* @see IsInfraUsageAllowed
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* @see CheckOwnership
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* @param type Type of vehicle.
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* @param infra_owner Owner of the infrastructure.
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* @param tile Tile of the infrastructure.
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* @return CommandCost indicating success or failure.
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*/
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static inline CommandCost CheckInfraUsageAllowed(VehicleType type, Owner infra_owner, TileIndex tile = 0)
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{
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if (infra_owner == OWNER_NONE || _settings_game.economy.infrastructure_sharing[type]) return CommandCost();
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return CheckOwnership(infra_owner, tile);
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}
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/**
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* Check whether a given company can control this vehicle.
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* Controlling a vehicle means permission to start, stop or reverse it or to make it ignore signals.
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* @param v The vehicle which may or may not be controlled.
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* @param o The company which may or may not control this vehicle.
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* @return True if the given company is allowed to control this vehicle.
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*/
|
||||
static inline bool IsVehicleControlAllowed(const Vehicle *v, Owner o)
|
||||
{
|
||||
return v->owner == o || (v->type == VEH_TRAIN && IsTileOwner(v->tile, o));
|
||||
}
|
||||
|
||||
/**
|
||||
* Check whether _current_company can control this vehicle.
|
||||
* If this is not allowed, this function provides the appropriate error message.
|
||||
* @see IsVehicleControlAllowed
|
||||
* @param v The vehicle which may or may not be controlled.
|
||||
* @return CommandCost indicating success or failure.
|
||||
*/
|
||||
static inline CommandCost CheckVehicleControlAllowed(const Vehicle *v)
|
||||
{
|
||||
if (v->type == VEH_TRAIN && IsTileOwner(v->tile, _current_company)) return CommandCost();
|
||||
return CheckOwnership(v->owner);
|
||||
}
|
||||
|
||||
/**
|
||||
* Do signal states propagate from the tracks of one owner to the other?
|
||||
* @note This function should be consistent, so if it returns true for (a, b) and (b, c),
|
||||
* it should also return true for (a, c).
|
||||
* @param o1 First track owner.
|
||||
* @param o2 Second track owner.
|
||||
* @return True if tracks of the two owners are part of the same signal block.
|
||||
*/
|
||||
static inline bool IsOneSignalBlock(Owner o1, Owner o2)
|
||||
{
|
||||
return o1 == o2 || _settings_game.economy.infrastructure_sharing[VEH_TRAIN];
|
||||
}
|
||||
|
||||
#endif /* INFRASTRUCTURE_FUNC_H */
|
||||
Loading…
Reference in New Issue