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Location: cpp/openttd-patchpack/source/src/station.cpp - annotation
r10508:3b33bc1a4aa8
15.0 KiB
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(svn r14765) -Update (r14764): remove changed strings from translations.
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/** @file station.cpp Implementation of the station base class. */
#include "stdafx.h"
#include "openttd.h"
#include "bridge_map.h"
#include "debug.h"
#include "station_map.h"
#include "station_base.h"
#include "town.h"
#include "saveload.h"
#include "company_func.h"
#include "airport.h"
#include "sprite.h"
#include "train.h"
#include "water_map.h"
#include "industry_map.h"
#include "newgrf_callbacks.h"
#include "newgrf_station.h"
#include "yapf/yapf.h"
#include "cargotype.h"
#include "roadveh.h"
#include "window_type.h"
#include "station_gui.h"
#include "zoom_func.h"
#include "functions.h"
#include "window_func.h"
#include "date_func.h"
#include "variables.h"
#include "settings_type.h"
#include "command_func.h"
#include "order_func.h"
#include "news_func.h"
#include "aircraft.h"
#include "table/sprites.h"
#include "table/strings.h"
Station::Station(TileIndex tile)
{
DEBUG(station, cDebugCtorLevel, "I+%3d", index);
xy = tile;
airport_tile = dock_tile = train_tile = INVALID_TILE;
bus_stops = truck_stops = NULL;
had_vehicle_of_type = 0;
time_since_load = 255;
time_since_unload = 255;
delete_ctr = 0;
facilities = 0;
last_vehicle_type = VEH_INVALID;
indtype = IT_INVALID;
random_bits = 0; // Random() must be called when station is really built (DC_EXEC)
waiting_triggers = 0;
}
/**
* Clean up a station by clearing vehicle orders and invalidating windows.
* Aircraft-Hangar orders need special treatment here, as the hangars are
* actually part of a station (tiletype is STATION), but the order type
* is OT_GOTO_DEPOT.
*/
Station::~Station()
{
DEBUG(station, cDebugCtorLevel, "I-%3d", index);
free(this->name);
free(this->speclist);
if (CleaningPool()) return;
while (!loading_vehicles.empty()) {
loading_vehicles.front()->LeaveStation();
}
Vehicle *v;
FOR_ALL_VEHICLES(v) {
if (v->type == VEH_AIRCRAFT && IsNormalAircraft(v) && v->u.air.targetairport == this->index) {
v->u.air.targetairport = INVALID_STATION;
}
}
MarkDirty();
InvalidateWindowData(WC_STATION_LIST, this->owner, 0);
DeleteWindowById(WC_STATION_VIEW, index);
/* Now delete all orders that go to the station */
RemoveOrderFromAllVehicles(OT_GOTO_STATION, index);
/* Subsidies need removal as well */
DeleteSubsidyWithStation(index);
/* Remove all news items */
DeleteStationNews(this->index);
xy = INVALID_TILE;
for (CargoID c = 0; c < NUM_CARGO; c++) {
goods[c].cargo.Truncate(0);
}
}
/**
* Get the primary road stop (the first road stop) that the given vehicle can load/unload.
* @param v the vehicle to get the first road stop for
* @return the first roadstop that this vehicle can load at
*/
RoadStop *Station::GetPrimaryRoadStop(const Vehicle *v) const
{
RoadStop *rs = this->GetPrimaryRoadStop(IsCargoInClass(v->cargo_type, CC_PASSENGERS) ? ROADSTOP_BUS : ROADSTOP_TRUCK);
for (; rs != NULL; rs = rs->next) {
/* The vehicle cannot go to this roadstop (different roadtype) */
if ((GetRoadTypes(rs->xy) & v->u.road.compatible_roadtypes) == ROADTYPES_NONE) continue;
/* The vehicle is articulated and can therefor not go the a standard road stop */
if (IsStandardRoadStopTile(rs->xy) && RoadVehHasArticPart(v)) continue;
/* The vehicle can actually go to this road stop. So, return it! */
break;
}
return rs;
}
/** Called when new facility is built on the station. If it is the first facility
* it initializes also 'xy' and 'random_bits' members */
void Station::AddFacility(byte new_facility_bit, TileIndex facil_xy)
{
if (facilities == 0) {
xy = facil_xy;
random_bits = Random();
}
facilities |= new_facility_bit;
owner = _current_company;
build_date = _date;
}
void Station::MarkDirty() const
{
if (sign.width_1 != 0) {
InvalidateWindowWidget(WC_STATION_VIEW, index, SVW_CAPTION);
/* We use ZOOM_LVL_MAX here, as every viewport can have an other zoom,
* and there is no way for us to know which is the biggest. So make the
* biggest area dirty, and we are safe for sure. */
MarkAllViewportsDirty(
sign.left - 6,
sign.top,
sign.left + ScaleByZoom(sign.width_1 + 12, ZOOM_LVL_MAX),
sign.top + ScaleByZoom(12, ZOOM_LVL_MAX));
}
}
void Station::MarkTilesDirty(bool cargo_change) const
{
TileIndex tile = train_tile;
int w, h;
if (tile == INVALID_TILE) return;
/* cargo_change is set if we're refreshing the tiles due to cargo moving
* around. */
if (cargo_change) {
/* Don't waste time updating if there are no custom station graphics
* that might change. Even if there are custom graphics, they might
* not change. Unfortunately we have no way of telling. */
if (this->num_specs == 0) return;
}
for (h = 0; h < trainst_h; h++) {
for (w = 0; w < trainst_w; w++) {
if (TileBelongsToRailStation(tile)) {
MarkTileDirtyByTile(tile);
}
tile += TileDiffXY(1, 0);
}
tile += TileDiffXY(-w, 1);
}
}
bool Station::TileBelongsToRailStation(TileIndex tile) const
{
return IsTileType(tile, MP_STATION) && GetStationIndex(tile) == index && IsRailwayStation(tile);
}
/** Obtain the length of a platform
* @pre tile must be a railway station tile
* @param tile A tile that contains the platform in question
* @return The length of the platform
*/
uint Station::GetPlatformLength(TileIndex tile) const
{
TileIndex t;
TileIndexDiff delta;
uint len = 0;
assert(TileBelongsToRailStation(tile));
delta = (GetRailStationAxis(tile) == AXIS_X ? TileDiffXY(1, 0) : TileDiffXY(0, 1));
t = tile;
do {
t -= delta;
len++;
} while (IsCompatibleTrainStationTile(t, tile));
t = tile;
do {
t += delta;
len++;
} while (IsCompatibleTrainStationTile(t, tile));
return len - 1;
}
/** Determines the REMAINING length of a platform, starting at (and including)
* the given tile.
* @param tile the tile from which to start searching. Must be a railway station tile
* @param dir The direction in which to search.
* @return The platform length
*/
uint Station::GetPlatformLength(TileIndex tile, DiagDirection dir) const
{
TileIndex start_tile = tile;
uint length = 0;
assert(IsRailwayStationTile(tile));
assert(dir < DIAGDIR_END);
do {
length ++;
tile += TileOffsByDiagDir(dir);
} while (IsCompatibleTrainStationTile(tile, start_tile));
return length;
}
/** Determines whether a station is a buoy only.
* @todo Ditch this encoding of buoys
*/
bool Station::IsBuoy() const
{
return (had_vehicle_of_type & HVOT_BUOY) != 0;
}
/** Determines the catchment radius of the station
* @return The radius
*/
uint Station::GetCatchmentRadius() const
{
uint ret = CA_NONE;
if (_settings_game.station.modified_catchment) {
if (this->bus_stops != NULL) ret = max<uint>(ret, CA_BUS);
if (this->truck_stops != NULL) ret = max<uint>(ret, CA_TRUCK);
if (this->train_tile != INVALID_TILE) ret = max<uint>(ret, CA_TRAIN);
if (this->dock_tile != INVALID_TILE) ret = max<uint>(ret, CA_DOCK);
if (this->airport_tile != INVALID_TILE) ret = max<uint>(ret, this->Airport()->catchment);
} else {
if (this->bus_stops != NULL || this->truck_stops != NULL || this->train_tile != INVALID_TILE || this->dock_tile != INVALID_TILE || this->airport_tile != INVALID_TILE) {
ret = CA_UNMODIFIED;
}
}
return ret;
}
/************************************************************************/
/* StationRect implementation */
/************************************************************************/
StationRect::StationRect()
{
MakeEmpty();
}
void StationRect::MakeEmpty()
{
left = top = right = bottom = 0;
}
/**
* Determines whether a given point (x, y) is within a certain distance of
* the station rectangle.
* @note x and y are in Tile coordinates
* @param x X coordinate
* @param y Y coordinate
* @param distance The maxmium distance a point may have (L1 norm)
* @return true if the point is within distance tiles of the station rectangle
*/
bool StationRect::PtInExtendedRect(int x, int y, int distance) const
{
return (left - distance <= x && x <= right + distance && top - distance <= y && y <= bottom + distance);
}
bool StationRect::IsEmpty() const
{
return (left == 0 || left > right || top > bottom);
}
bool StationRect::BeforeAddTile(TileIndex tile, StationRectMode mode)
{
int x = TileX(tile);
int y = TileY(tile);
if (IsEmpty()) {
/* we are adding the first station tile */
if (mode != ADD_TEST) {
left = right = x;
top = bottom = y;
}
} else if (!PtInExtendedRect(x, y)) {
/* current rect is not empty and new point is outside this rect */
/* make new spread-out rectangle */
Rect new_rect = {min(x, left), min(y, top), max(x, right), max(y, bottom)};
/* check new rect dimensions against preset max */
int w = new_rect.right - new_rect.left + 1;
int h = new_rect.bottom - new_rect.top + 1;
if (mode != ADD_FORCE && (w > _settings_game.station.station_spread || h > _settings_game.station.station_spread)) {
assert(mode != ADD_TRY);
_error_message = STR_306C_STATION_TOO_SPREAD_OUT;
return false;
}
/* spread-out ok, return true */
if (mode != ADD_TEST) {
/* we should update the station rect */
*this = new_rect;
}
} else {
; // new point is inside the rect, we don't need to do anything
}
return true;
}
bool StationRect::BeforeAddRect(TileIndex tile, int w, int h, StationRectMode mode)
{
return (mode == ADD_FORCE || (w <= _settings_game.station.station_spread && h <= _settings_game.station.station_spread)) && // important when the old rect is completely inside the new rect, resp. the old one was empty
BeforeAddTile(tile, mode) && BeforeAddTile(TILE_ADDXY(tile, w - 1, h - 1), mode);
}
/**
* Check whether station tiles of the given station id exist in the given rectangle
* @param st_id Station ID to look for in the rectangle
* @param left_a Minimal tile X edge of the rectangle
* @param top_a Minimal tile Y edge of the rectangle
* @param right_a Maximal tile X edge of the rectangle (inclusive)
* @param bottom_a Maximal tile Y edge of the rectangle (inclusive)
* @return \c true if a station tile with the given \a st_id exists in the rectangle, \c false otherwise
*/
/*static*/ bool StationRect::ScanForStationTiles(StationID st_id, int left_a, int top_a, int right_a, int bottom_a)
{
TileIndex top_left = TileXY(left_a, top_a);
int width = right_a - left_a + 1;
int height = bottom_a - top_a + 1;
BEGIN_TILE_LOOP(tile, width, height, top_left)
if (IsTileType(tile, MP_STATION) && GetStationIndex(tile) == st_id) return true;
END_TILE_LOOP(tile, width, height, top_left);
return false;
}
bool StationRect::AfterRemoveTile(Station *st, TileIndex tile)
{
int x = TileX(tile);
int y = TileY(tile);
/* look if removed tile was on the bounding rect edge
* and try to reduce the rect by this edge
* do it until we have empty rect or nothing to do */
for (;;) {
/* check if removed tile is on rect edge */
bool left_edge = (x == left);
bool right_edge = (x == right);
bool top_edge = (y == top);
bool bottom_edge = (y == bottom);
/* can we reduce the rect in either direction? */
bool reduce_x = ((left_edge || right_edge) && !ScanForStationTiles(st->index, x, top, x, bottom));
bool reduce_y = ((top_edge || bottom_edge) && !ScanForStationTiles(st->index, left, y, right, y));
if (!(reduce_x || reduce_y)) break; // nothing to do (can't reduce)
if (reduce_x) {
/* reduce horizontally */
if (left_edge) {
/* move left edge right */
left = x = x + 1;
} else {
/* move right edge left */
right = x = x - 1;
}
}
if (reduce_y) {
/* reduce vertically */
if (top_edge) {
/* move top edge down */
top = y = y + 1;
} else {
/* move bottom edge up */
bottom = y = y - 1;
}
}
if (left > right || top > bottom) {
/* can't continue, if the remaining rectangle is empty */
MakeEmpty();
return true; // empty remaining rect
}
}
return false; // non-empty remaining rect
}
bool StationRect::AfterRemoveRect(Station *st, TileIndex tile, int w, int h)
{
assert(PtInExtendedRect(TileX(tile), TileY(tile)));
assert(PtInExtendedRect(TileX(tile) + w - 1, TileY(tile) + h - 1));
bool empty = AfterRemoveTile(st, tile);
if (w != 1 || h != 1) empty = empty || AfterRemoveTile(st, TILE_ADDXY(tile, w - 1, h - 1));
return empty;
}
StationRect& StationRect::operator = (Rect src)
{
left = src.left;
top = src.top;
right = src.right;
bottom = src.bottom;
return *this;
}
/************************************************************************/
/* RoadStop implementation */
/************************************************************************/
/** Initializes a RoadStop */
RoadStop::RoadStop(TileIndex tile) :
xy(tile),
status(3), // stop is free
num_vehicles(0),
next(NULL)
{
DEBUG(ms, cDebugCtorLevel, "I+ at %d[0x%x]", tile, tile);
}
/** De-Initializes a RoadStops. This includes clearing all slots that vehicles might
* have and unlinks it from the linked list of road stops at the given station
*/
RoadStop::~RoadStop()
{
if (CleaningPool()) return;
/* Clear the slot assignment of all vehicles heading for this road stop */
if (num_vehicles != 0) {
Vehicle *v;
FOR_ALL_VEHICLES(v) {
if (v->type == VEH_ROAD && v->u.road.slot == this) ClearSlot(v);
}
}
assert(num_vehicles == 0);
DEBUG(ms, cDebugCtorLevel , "I- at %d[0x%x]", xy, xy);
xy = INVALID_TILE;
}
/** Checks whether there is a free bay in this road stop */
bool RoadStop::HasFreeBay() const
{
return GB(status, 0, MAX_BAY_COUNT) != 0;
}
/** Checks whether the given bay is free in this road stop */
bool RoadStop::IsFreeBay(uint nr) const
{
assert(nr < MAX_BAY_COUNT);
return HasBit(status, nr);
}
/**
* Allocates a bay
* @return the allocated bay number
* @pre this->HasFreeBay()
*/
uint RoadStop::AllocateBay()
{
assert(HasFreeBay());
/* Find the first free bay. If the bit is set, the bay is free. */
uint bay_nr = 0;
while (!HasBit(status, bay_nr)) bay_nr++;
ClrBit(status, bay_nr);
return bay_nr;
}
/**
* Allocates a bay in a drive-through road stop
* @param nr the number of the bay to allocate
*/
void RoadStop::AllocateDriveThroughBay(uint nr)
{
assert(nr < MAX_BAY_COUNT);
ClrBit(status, nr);
}
/**
* Frees the given bay
* @param nr the number of the bay to free
*/
void RoadStop::FreeBay(uint nr)
{
assert(nr < MAX_BAY_COUNT);
SetBit(status, nr);
}
/** Checks whether the entrance of the road stop is occupied by a vehicle */
bool RoadStop::IsEntranceBusy() const
{
return HasBit(status, 7);
}
/** Makes an entrance occupied or free */
void RoadStop::SetEntranceBusy(bool busy)
{
SB(status, 7, 1, busy);
}
/**
* Get the next road stop accessible by this vehicle.
* @param v the vehicle to get the next road stop for.
* @return the next road stop accessible.
*/
RoadStop *RoadStop::GetNextRoadStop(const Vehicle *v) const
{
for (RoadStop *rs = this->next; rs != NULL; rs = rs->next) {
/* The vehicle cannot go to this roadstop (different roadtype) */
if ((GetRoadTypes(rs->xy) & v->u.road.compatible_roadtypes) == ROADTYPES_NONE) continue;
/* The vehicle is articulated and can therefor not go the a standard road stop */
if (IsStandardRoadStopTile(rs->xy) && RoadVehHasArticPart(v)) continue;
/* The vehicle can actually go to this road stop. So, return it! */
return rs;
}
return NULL;
}
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