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OpenTTD-patches/station_cmd.c

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/* $Id$ */
/** @file station_cmd.c */
#include "stdafx.h"
#include "openttd.h"
#include "bridge_map.h"
#include "debug.h"
#include "functions.h"
#include "station_map.h"
#include "table/sprites.h"
#include "table/strings.h"
#include "map.h"
#include "tile.h"
#include "station.h"
#include "gfx.h"
#include "window.h"
#include "viewport.h"
#include "command.h"
#include "town.h"
#include "vehicle.h"
#include "news.h"
#include "saveload.h"
#include "economy.h"
#include "player.h"
#include "airport.h"
#include "sprite.h"
#include "depot.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 "date.h"
typedef enum StationRectModes
{
RECT_MODE_TEST = 0,
RECT_MODE_TRY,
RECT_MODE_FORCE
} StationRectMode;
static void StationRect_Init(Station *st);
static bool StationRect_IsEmpty(Station *st);
static bool StationRect_BeforeAddTile(Station *st, TileIndex tile, StationRectMode mode);
static bool StationRect_BeforeAddRect(Station *st, TileIndex tile, int w, int h, StationRectMode mode);
static bool StationRect_AfterRemoveTile(Station *st, TileIndex tile);
static bool StationRect_AfterRemoveRect(Station *st, TileIndex tile, int w, int h);
/**
* Called if a new block is added to the station-pool
*/
static void StationPoolNewBlock(uint start_item)
{
Station *st;
/* We don't use FOR_ALL here, because FOR_ALL skips invalid items.
* TODO - This is just a temporary stage, this will be removed. */
for (st = GetStation(start_item); st != NULL; st = (st->index + 1U < GetStationPoolSize()) ? GetStation(st->index + 1U) : NULL) st->index = start_item++;
}
static void StationPoolCleanBlock(uint start_item, uint end_item)
{
uint i;
for (i = start_item; i <= end_item; i++) {
Station *st = GetStation(i);
free(st->speclist);
st->speclist = NULL;
}
}
/**
* Called if a new block is added to the roadstop-pool
*/
static void RoadStopPoolNewBlock(uint start_item)
{
RoadStop *rs;
/* We don't use FOR_ALL here, because FOR_ALL skips invalid items.
* TODO - This is just a temporary stage, this will be removed. */
for (rs = GetRoadStop(start_item); rs != NULL; rs = (rs->index + 1U < GetRoadStopPoolSize()) ? GetRoadStop(rs->index + 1U) : NULL) rs->index = start_item++;
}
DEFINE_OLD_POOL(Station, Station, StationPoolNewBlock, StationPoolCleanBlock)
DEFINE_OLD_POOL(RoadStop, RoadStop, RoadStopPoolNewBlock, NULL)
extern void UpdateAirplanesOnNewStation(Station *st);
static bool TileBelongsToRailStation(const Station *st, TileIndex tile)
{
return IsTileType(tile, MP_STATION) && GetStationIndex(tile) == st->index && IsRailwayStation(tile);
}
void MarkStationTilesDirty(const Station *st)
{
TileIndex tile = st->train_tile;
int w, h;
// XXX No station is recorded as 0, not INVALID_TILE...
if (tile == 0) return;
for (h = 0; h < st->trainst_h; h++) {
for (w = 0; w < st->trainst_w; w++) {
if (TileBelongsToRailStation(st, tile)) {
MarkTileDirtyByTile(tile);
}
tile += TileDiffXY(1, 0);
}
tile += TileDiffXY(-w, 1);
}
}
static void MarkStationDirty(const Station* st)
{
if (st->sign.width_1 != 0) {
InvalidateWindowWidget(WC_STATION_VIEW, st->index, 1);
MarkAllViewportsDirty(
st->sign.left - 6,
st->sign.top,
st->sign.left + (st->sign.width_1 << 2) + 12,
st->sign.top + 48);
}
}
static void InitializeRoadStop(RoadStop *road_stop, RoadStop *previous, TileIndex tile, StationID index)
{
road_stop->xy = tile;
road_stop->used = true;
road_stop->status = 3; //stop is free
road_stop->next = NULL;
road_stop->prev = previous;
road_stop->station = index;
road_stop->num_vehicles = 0;
}
RoadStop* GetPrimaryRoadStop(const Station* st, RoadStopType type)
{
switch (type) {
case RS_BUS: return st->bus_stops;
case RS_TRUCK: return st->truck_stops;
default: NOT_REACHED();
}
return NULL;
}
RoadStop* GetRoadStopByTile(TileIndex tile, RoadStopType type)
{
const Station* st = GetStationByTile(tile);
RoadStop* rs;
for (rs = GetPrimaryRoadStop(st, type); rs->xy != tile; rs = rs->next) {
assert(rs->next != NULL);
}
return rs;
}
uint GetNumRoadStopsInStation(const Station* st, RoadStopType type)
{
uint num = 0;
const RoadStop *rs;
assert(st != NULL);
for (rs = GetPrimaryRoadStop(st, type); rs != NULL; rs = rs->next) num++;
return num;
}
RoadStop *AllocateRoadStop(void)
{
RoadStop *rs;
/* We don't use FOR_ALL here, because FOR_ALL skips invalid items.
* TODO - This is just a temporary stage, this will be removed. */
for (rs = GetRoadStop(0); rs != NULL; rs = (rs->index + 1U < GetRoadStopPoolSize()) ? GetRoadStop(rs->index + 1U) : NULL) {
if (!IsValidRoadStop(rs)) {
RoadStopID index = rs->index;
memset(rs, 0, sizeof(*rs));
rs->index = index;
return rs;
}
}
/* Check if we can add a block to the pool */
if (AddBlockToPool(&_RoadStop_pool)) return AllocateRoadStop();
return NULL;
}
/* Calculate the radius of the station. Basicly it is the biggest
* radius that is available within the station */
static uint FindCatchmentRadius(const Station* st)
{
uint ret = 0;
if (st->bus_stops != NULL) ret = max(ret, CA_BUS);
if (st->truck_stops != NULL) ret = max(ret, CA_TRUCK);
if (st->train_tile) ret = max(ret, CA_TRAIN);
if (st->dock_tile) ret = max(ret, CA_DOCK);
if (st->airport_tile) {
switch (st->airport_type) {
case AT_OILRIG: ret = max(ret, CA_AIR_OILPAD); break;
case AT_SMALL: ret = max(ret, CA_AIR_SMALL); break;
case AT_HELIPORT: ret = max(ret, CA_AIR_HELIPORT); break;
case AT_LARGE: ret = max(ret, CA_AIR_LARGE); break;
case AT_METROPOLITAN: ret = max(ret, CA_AIR_METRO); break;
case AT_INTERNATIONAL: ret = max(ret, CA_AIR_INTER); break;
case AT_COMMUTER: ret = max(ret, CA_AIR_COMMUTER); break;
case AT_HELIDEPOT: ret = max(ret, CA_AIR_HELIDEPOT); break;
case AT_INTERCON: ret = max(ret, CA_AIR_INTERCON); break;
case AT_HELISTATION: ret = max(ret, CA_AIR_HELISTATION); break;
}
}
return ret;
}
#define CHECK_STATIONS_ERR ((Station*)-1)
static Station* GetStationAround(TileIndex tile, int w, int h, StationID closest_station)
{
// check around to see if there's any stations there
BEGIN_TILE_LOOP(tile_cur, w + 2, h + 2, tile - TileDiffXY(1, 1))
if (IsTileType(tile_cur, MP_STATION)) {
StationID t = GetStationIndex(tile_cur);
{
Station *st = GetStation(t);
// you cannot take control of an oilrig!!
if (st->airport_type == AT_OILRIG && st->facilities == (FACIL_AIRPORT|FACIL_DOCK))
continue;
}
if (closest_station == INVALID_STATION) {
closest_station = t;
} else if (closest_station != t) {
_error_message = STR_3006_ADJOINS_MORE_THAN_ONE_EXISTING;
return CHECK_STATIONS_ERR;
}
}
END_TILE_LOOP(tile_cur, w + 2, h + 2, tile - TileDiffXY(1, 1))
return (closest_station == INVALID_STATION) ? NULL : GetStation(closest_station);
}
static Station *AllocateStation(void)
{
Station *st = NULL;
/* We don't use FOR_ALL here, because FOR_ALL skips invalid items.
* TODO - This is just a temporary stage, this will be removed. */
for (st = GetStation(0); st != NULL; st = (st->index + 1U < GetStationPoolSize()) ? GetStation(st->index + 1U) : NULL) {
if (!IsValidStation(st)) {
StationID index = st->index;
memset(st, 0, sizeof(Station));
st->index = index;
return st;
}
}
/* Check if we can add a block to the pool */
if (AddBlockToPool(&_Station_pool)) return AllocateStation();
_error_message = STR_3008_TOO_MANY_STATIONS_LOADING;
return NULL;
}
/**
* Counts the numbers of tiles matching a specific type in the area around
* @param tile the center tile of the 'count area'
* @param type the type of tile searched for
* @param industry when type == MP_INDUSTRY, the type of the industry,
* in all other cases this parameter is ignored
* @result the noumber of matching tiles around
*/
static int CountMapSquareAround(TileIndex tile, TileType type, IndustryType industry)
{
TileIndex cur_tile;
int dx, dy;
int num = 0;
for (dx = -3; dx <= 3; dx++) {
for (dy = -3; dy <= 3; dy++) {
cur_tile = TILE_MASK(tile + TileDiffXY(dx, dy));
if (IsTileType(cur_tile, type)) {
switch (type) {
case MP_INDUSTRY:
if (GetIndustryType(cur_tile) == industry)
num++;
break;
case MP_WATER:
if (!IsWater(cur_tile))
break;
/* FALL THROUGH WHEN WATER TILE */
case MP_TREES:
num++;
break;
default:
break;
}
}
}
}
return num;
}
#define M(x) ((x) - STR_SV_STNAME)
static bool GenerateStationName(Station *st, TileIndex tile, int flag)
{
static const uint32 _gen_station_name_bits[] = {
0, /* 0 */
1 << M(STR_SV_STNAME_AIRPORT), /* 1 */
1 << M(STR_SV_STNAME_OILFIELD), /* 2 */
1 << M(STR_SV_STNAME_DOCKS), /* 3 */
0x1FF << M(STR_SV_STNAME_BUOY_1), /* 4 */
1 << M(STR_SV_STNAME_HELIPORT), /* 5 */
};
Town *t = st->town;
uint32 free_names = (uint32)-1;
int found;
uint z,z2;
unsigned long tmp;
{
Station *s;
FOR_ALL_STATIONS(s) {
if (s != st && s->town==t) {
uint str = M(s->string_id);
if (str <= 0x20) {
if (str == M(STR_SV_STNAME_FOREST))
str = M(STR_SV_STNAME_WOODS);
CLRBIT(free_names, str);
}
}
}
}
/* check default names */
tmp = free_names & _gen_station_name_bits[flag];
if (tmp != 0) {
found = FindFirstBit(tmp);
goto done;
}
/* check mine? */
if (HASBIT(free_names, M(STR_SV_STNAME_MINES))) {
if (CountMapSquareAround(tile, MP_INDUSTRY, IT_COAL_MINE) >= 2 ||
CountMapSquareAround(tile, MP_INDUSTRY, IT_IRON_MINE) >= 2 ||
CountMapSquareAround(tile, MP_INDUSTRY, IT_COPPER_MINE) >= 2 ||
CountMapSquareAround(tile, MP_INDUSTRY, IT_GOLD_MINE) >= 2 ||
CountMapSquareAround(tile, MP_INDUSTRY, IT_DIAMOND_MINE) >= 2) {
found = M(STR_SV_STNAME_MINES);
goto done;
}
}
/* check close enough to town to get central as name? */
if (DistanceMax(tile,t->xy) < 8) {
found = M(STR_SV_STNAME);
if (HASBIT(free_names, M(STR_SV_STNAME))) goto done;
found = M(STR_SV_STNAME_CENTRAL);
if (HASBIT(free_names, M(STR_SV_STNAME_CENTRAL))) goto done;
}
/* Check lakeside */
if (HASBIT(free_names, M(STR_SV_STNAME_LAKESIDE)) &&
DistanceFromEdge(tile) < 20 &&
CountMapSquareAround(tile, MP_WATER, 0) >= 5) {
found = M(STR_SV_STNAME_LAKESIDE);
goto done;
}
/* Check woods */
if (HASBIT(free_names, M(STR_SV_STNAME_WOODS)) && (
CountMapSquareAround(tile, MP_TREES, 0) >= 8 ||
CountMapSquareAround(tile, MP_INDUSTRY, IT_FOREST) >= 2)
) {
found = _opt.landscape == LT_DESERT ?
M(STR_SV_STNAME_FOREST) : M(STR_SV_STNAME_WOODS);
goto done;
}
/* check elevation compared to town */
z = GetTileZ(tile);
z2 = GetTileZ(t->xy);
if (z < z2) {
found = M(STR_SV_STNAME_VALLEY);
if (HASBIT(free_names, M(STR_SV_STNAME_VALLEY))) goto done;
} else if (z > z2) {
found = M(STR_SV_STNAME_HEIGHTS);
if (HASBIT(free_names, M(STR_SV_STNAME_HEIGHTS))) goto done;
}
/* check direction compared to town */
{
static const int8 _direction_and_table[] = {
~( (1<<M(STR_SV_STNAME_WEST)) | (1<<M(STR_SV_STNAME_EAST)) | (1<<M(STR_SV_STNAME_NORTH)) ),
~( (1<<M(STR_SV_STNAME_SOUTH)) | (1<<M(STR_SV_STNAME_WEST)) | (1<<M(STR_SV_STNAME_NORTH)) ),
~( (1<<M(STR_SV_STNAME_SOUTH)) | (1<<M(STR_SV_STNAME_EAST)) | (1<<M(STR_SV_STNAME_NORTH)) ),
~( (1<<M(STR_SV_STNAME_SOUTH)) | (1<<M(STR_SV_STNAME_WEST)) | (1<<M(STR_SV_STNAME_EAST)) ),
};
free_names &= _direction_and_table[
(TileX(tile) < TileX(t->xy)) +
(TileY(tile) < TileY(t->xy)) * 2];
}
tmp = free_names & ((1<<1)|(1<<2)|(1<<3)|(1<<4)|(1<<6)|(1<<7)|(1<<12)|(1<<26)|(1<<27)|(1<<28)|(1<<29)|(1<<30));
if (tmp == 0) {
_error_message = STR_3007_TOO_MANY_STATIONS_LOADING;
return false;
}
found = FindFirstBit(tmp);
done:
st->string_id = found + STR_SV_STNAME;
return true;
}
#undef M
static Station* GetClosestStationFromTile(TileIndex tile, uint threshold, PlayerID owner)
{
Station* best_station = NULL;
Station* st;
FOR_ALL_STATIONS(st) {
if ((owner == PLAYER_SPECTATOR || st->owner == owner)) {
uint cur_dist = DistanceManhattan(tile, st->xy);
if (cur_dist < threshold) {
threshold = cur_dist;
best_station = st;
}
}
}
return best_station;
}
static void StationInitialize(Station *st, TileIndex tile)
{
GoodsEntry *ge;
st->xy = tile;
st->airport_tile = st->dock_tile = st->train_tile = 0;
st->bus_stops = st->truck_stops = NULL;
st->had_vehicle_of_type = 0;
st->time_since_load = 255;
st->time_since_unload = 255;
st->delete_ctr = 0;
st->facilities = 0;
st->last_vehicle_type = VEH_Invalid;
for (ge = st->goods; ge != endof(st->goods); ge++) {
ge->waiting_acceptance = 0;
ge->days_since_pickup = 0;
ge->enroute_from = INVALID_STATION;
ge->rating = 175;
ge->last_speed = 0;
ge->last_age = 0xFF;
ge->feeder_profit = 0;
}
st->random_bits = Random();
st->waiting_triggers = 0;
StationRect_Init(st);
}
// Update the virtual coords needed to draw the station sign.
// st = Station to update for.
static void UpdateStationVirtCoord(Station *st)
{
Point pt = RemapCoords2(TileX(st->xy) * TILE_SIZE, TileY(st->xy) * TILE_SIZE);
pt.y -= 32;
if (st->facilities & FACIL_AIRPORT && st->airport_type == AT_OILRIG) pt.y -= 16;
SetDParam(0, st->index);
SetDParam(1, st->facilities);
UpdateViewportSignPos(&st->sign, pt.x, pt.y, STR_305C_0);
}
// Update the virtual coords needed to draw the station sign for all stations.
void UpdateAllStationVirtCoord(void)
{
Station* st;
FOR_ALL_STATIONS(st) {
UpdateStationVirtCoord(st);
}
}
// Update the station virt coords while making the modified parts dirty.
static void UpdateStationVirtCoordDirty(Station *st)
{
MarkStationDirty(st);
UpdateStationVirtCoord(st);
MarkStationDirty(st);
}
// Get a mask of the cargo types that the station accepts.
static uint GetAcceptanceMask(const Station *st)
{
uint mask = 0;
uint i;
for (i = 0; i != NUM_CARGO; i++) {
if (st->goods[i].waiting_acceptance & 0x8000) mask |= 1 << i;
}
return mask;
}
// Items contains the two cargo names that are to be accepted or rejected.
// msg is the string id of the message to display.
static void ShowRejectOrAcceptNews(const Station *st, uint32 items, StringID msg)
{
if (items) {
SetDParam(2, GB(items, 16, 16));
SetDParam(1, GB(items, 0, 16));
SetDParam(0, st->index);
AddNewsItem(msg + (GB(items, 16, 16) ? 1 : 0), NEWS_FLAGS(NM_SMALL, NF_VIEWPORT|NF_TILE, NT_ACCEPTANCE, 0), st->xy, 0);
}
}
// Get a list of the cargo types being produced around the tile.
void GetProductionAroundTiles(AcceptedCargo produced, TileIndex tile,
int w, int h, int rad)
{
int x,y;
int x1,y1,x2,y2;
int xc,yc;
memset(produced, 0, sizeof(AcceptedCargo));
x = TileX(tile);
y = TileY(tile);
// expand the region by rad tiles on each side
// while making sure that we remain inside the board.
x2 = min(x + w + rad, MapSizeX());
x1 = max(x - rad, 0);
y2 = min(y + h + rad, MapSizeY());
y1 = max(y - rad, 0);
assert(x1 < x2);
assert(y1 < y2);
assert(w > 0);
assert(h > 0);
for (yc = y1; yc != y2; yc++) {
for (xc = x1; xc != x2; xc++) {
if (!(IS_INSIDE_1D(xc, x, w) && IS_INSIDE_1D(yc, y, h))) {
GetProducedCargoProc *gpc;
TileIndex tile = TileXY(xc, yc);
gpc = _tile_type_procs[GetTileType(tile)]->get_produced_cargo_proc;
if (gpc != NULL) {
CargoID cargos[2] = { CT_INVALID, CT_INVALID };
gpc(tile, cargos);
if (cargos[0] != CT_INVALID) {
produced[cargos[0]]++;
if (cargos[1] != CT_INVALID) {
produced[cargos[1]]++;
}
}
}
}
}
}
}
// Get a list of the cargo types that are accepted around the tile.
void GetAcceptanceAroundTiles(AcceptedCargo accepts, TileIndex tile,
int w, int h, int rad)
{
int x,y;
int x1,y1,x2,y2;
int xc,yc;
memset(accepts, 0, sizeof(AcceptedCargo));
x = TileX(tile);
y = TileY(tile);
// expand the region by rad tiles on each side
// while making sure that we remain inside the board.
x2 = min(x + w + rad, MapSizeX());
y2 = min(y + h + rad, MapSizeY());
x1 = max(x - rad, 0);
y1 = max(y - rad, 0);
assert(x1 < x2);
assert(y1 < y2);
assert(w > 0);
assert(h > 0);
for (yc = y1; yc != y2; yc++) {
for (xc = x1; xc != x2; xc++) {
TileIndex tile = TileXY(xc, yc);
if (!IsTileType(tile, MP_STATION)) {
AcceptedCargo ac;
uint i;
GetAcceptedCargo(tile, ac);
for (i = 0; i < lengthof(ac); ++i) accepts[i] += ac[i];
}
}
}
}
typedef struct ottd_Rectangle {
uint min_x;
uint min_y;
uint max_x;
uint max_y;
} ottd_Rectangle;
static inline void MergePoint(ottd_Rectangle* rect, TileIndex tile)
{
uint x = TileX(tile);
uint y = TileY(tile);
if (rect->min_x > x) rect->min_x = x;
if (rect->min_y > y) rect->min_y = y;
if (rect->max_x < x) rect->max_x = x;
if (rect->max_y < y) rect->max_y = y;
}
// Update the acceptance for a station.
// show_msg controls whether to display a message that acceptance was changed.
static void UpdateStationAcceptance(Station *st, bool show_msg)
{
uint old_acc, new_acc;
const RoadStop *cur_rs;
int i;
ottd_Rectangle rect;
int rad;
AcceptedCargo accepts;
rect.min_x = MapSizeX();
rect.min_y = MapSizeY();
rect.max_x = rect.max_y = 0;
// Don't update acceptance for a buoy
if (IsBuoy(st)) return;
/* old accepted goods types */
old_acc = GetAcceptanceMask(st);
// Put all the tiles that span an area in the table.
if (st->train_tile != 0) {
MergePoint(&rect, st->train_tile);
MergePoint(&rect,
st->train_tile + TileDiffXY(st->trainst_w - 1, st->trainst_h - 1)
);
}
if (st->airport_tile != 0) {
const AirportFTAClass* afc = GetAirport(st->airport_type);
MergePoint(&rect, st->airport_tile);
MergePoint(&rect,
st->airport_tile + TileDiffXY(afc->size_x - 1, afc->size_y - 1)
);
}
if (st->dock_tile != 0) MergePoint(&rect, st->dock_tile);
for (cur_rs = st->bus_stops; cur_rs != NULL; cur_rs = cur_rs->next) {
MergePoint(&rect, cur_rs->xy);
}
for (cur_rs = st->truck_stops; cur_rs != NULL; cur_rs = cur_rs->next) {
MergePoint(&rect, cur_rs->xy);
}
rad = (_patches.modified_catchment) ? FindCatchmentRadius(st) : 4;
// And retrieve the acceptance.
if (rect.max_x >= rect.min_x) {
GetAcceptanceAroundTiles(
accepts,
TileXY(rect.min_x, rect.min_y),
rect.max_x - rect.min_x + 1,
rect.max_y - rect.min_y + 1,
rad
);
} else {
memset(accepts, 0, sizeof(accepts));
}
// Adjust in case our station only accepts fewer kinds of goods
for (i = 0; i != NUM_CARGO; i++) {
uint amt = min(accepts[i], 15);
// Make sure the station can accept the goods type.
if ((i != CT_PASSENGERS && !(st->facilities & (byte)~FACIL_BUS_STOP)) ||
(i == CT_PASSENGERS && !(st->facilities & (byte)~FACIL_TRUCK_STOP)))
amt = 0;
SB(st->goods[i].waiting_acceptance, 12, 4, amt);
}
// Only show a message in case the acceptance was actually changed.
new_acc = GetAcceptanceMask(st);
if (old_acc == new_acc)
return;
// show a message to report that the acceptance was changed?
if (show_msg && st->owner == _local_player && st->facilities) {
uint32 accept=0, reject=0; /* these contain two string ids each */
const StringID *str = _cargoc.names_s;
do {
if (new_acc & 1) {
if (!(old_acc & 1)) accept = (accept << 16) | *str;
} else {
if (old_acc & 1) reject = (reject << 16) | *str;
}
} while (str++,(new_acc>>=1) != (old_acc>>=1));
ShowRejectOrAcceptNews(st, accept, STR_3040_NOW_ACCEPTS);
ShowRejectOrAcceptNews(st, reject, STR_303E_NO_LONGER_ACCEPTS);
}
// redraw the station view since acceptance changed
InvalidateWindowWidget(WC_STATION_VIEW, st->index, 4);
}
static void UpdateStationSignCoord(Station *st)
{
Rect *r = &st->rect;
if (StationRect_IsEmpty(st)) return; // no tiles belong to this station
// clamp sign coord to be inside the station rect
st->xy = TileXY(clampu(TileX(st->xy), r->left, r->right), clampu(TileY(st->xy), r->top, r->bottom));
UpdateStationVirtCoordDirty(st);
}
// This is called right after a station was deleted.
// It checks if the whole station is free of substations, and if so, the station will be
// deleted after a little while.
static void DeleteStationIfEmpty(Station* st)
{
if (st->facilities == 0) {
st->delete_ctr = 0;
RebuildStationLists();
InvalidateWindow(WC_STATION_LIST, st->owner);
}
/* station remains but it probably lost some parts - station sign should stay in the station boundaries */
UpdateStationSignCoord(st);
}
static int32 ClearTile_Station(TileIndex tile, byte flags);
// Tries to clear the given area. Returns the cost in case of success.
// Or an error code if it failed.
int32 CheckFlatLandBelow(TileIndex tile, uint w, uint h, uint flags, uint invalid_dirs, StationID* station)
{
int32 cost = 0, ret;
Slope tileh;
uint z;
int allowed_z = -1;
int flat_z;
BEGIN_TILE_LOOP(tile_cur, w, h, tile)
if (MayHaveBridgeAbove(tile_cur) && IsBridgeAbove(tile_cur)) {
return_cmd_error(STR_5007_MUST_DEMOLISH_BRIDGE_FIRST);
}
if (!EnsureNoVehicle(tile_cur)) return CMD_ERROR;
tileh = GetTileSlope(tile_cur, &z);
/* Prohibit building if
* 1) The tile is "steep" (i.e. stretches two height levels)
* -OR-
* 2) The tile is non-flat if
* a) the player building is an "old-school" AI
* -OR-
* b) the build_on_slopes switch is disabled
*/
if (IsSteepSlope(tileh) ||
((_is_old_ai_player || !_patches.build_on_slopes) && tileh != SLOPE_FLAT)) {
return_cmd_error(STR_0007_FLAT_LAND_REQUIRED);
}
flat_z = z;
if (tileh != SLOPE_FLAT) {
// need to check so the entrance to the station is not pointing at a slope.
if ((invalid_dirs&1 && !(tileh & SLOPE_NE) && (uint)w_cur == w) ||
(invalid_dirs&2 && !(tileh & SLOPE_SE) && h_cur == 1) ||
(invalid_dirs&4 && !(tileh & SLOPE_SW) && w_cur == 1) ||
(invalid_dirs&8 && !(tileh & SLOPE_NW) && (uint)h_cur == h)) {
return_cmd_error(STR_0007_FLAT_LAND_REQUIRED);
}
cost += _price.terraform;
flat_z += TILE_HEIGHT;
}
// get corresponding flat level and make sure that all parts of the station have the same level.
if (allowed_z == -1) {
// first tile
allowed_z = flat_z;
} else if (allowed_z != flat_z) {
return_cmd_error(STR_0007_FLAT_LAND_REQUIRED);
}
// if station is set, then we have special handling to allow building on top of already existing stations.
// so station points to INVALID_STATION if we can build on any station. or it points to a station if we're only allowed to build
// on exactly that station.
if (station != NULL && IsTileType(tile_cur, MP_STATION)) {
if (!IsRailwayStation(tile_cur)) {
return ClearTile_Station(tile_cur, DC_AUTO); // get error message
} else {
StationID st = GetStationIndex(tile_cur);
if (*station == INVALID_STATION) {
*station = st;
} else if (*station != st) {
return_cmd_error(STR_3006_ADJOINS_MORE_THAN_ONE_EXISTING);
}
}
} else {
ret = DoCommand(tile_cur, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
if (CmdFailed(ret)) return ret;
cost += ret;
}
END_TILE_LOOP(tile_cur, w, h, tile)
return cost;
}
static bool CanExpandRailroadStation(Station* st, uint* fin, Axis axis)
{
uint curw = st->trainst_w, curh = st->trainst_h;
TileIndex tile = fin[0];
uint w = fin[1];
uint h = fin[2];
if (_patches.nonuniform_stations) {
// determine new size of train station region..
int x = min(TileX(st->train_tile), TileX(tile));
int y = min(TileY(st->train_tile), TileY(tile));
curw = max(TileX(st->train_tile) + curw, TileX(tile) + w) - x;
curh = max(TileY(st->train_tile) + curh, TileY(tile) + h) - y;
tile = TileXY(x, y);
} else {
// check so the orientation is the same
if (GetRailStationAxis(st->train_tile) != axis) {
_error_message = STR_306D_NONUNIFORM_STATIONS_DISALLOWED;
return false;
}
// check if the new station adjoins the old station in either direction
if (curw == w && st->train_tile == tile + TileDiffXY(0, h)) {
// above
curh += h;
} else if (curw == w && st->train_tile == tile - TileDiffXY(0, curh)) {
// below
tile -= TileDiffXY(0, curh);
curh += h;
} else if (curh == h && st->train_tile == tile + TileDiffXY(w, 0)) {
// to the left
curw += w;
} else if (curh == h && st->train_tile == tile - TileDiffXY(curw, 0)) {
// to the right
tile -= TileDiffXY(curw, 0);
curw += w;
} else {
_error_message = STR_306D_NONUNIFORM_STATIONS_DISALLOWED;
return false;
}
}
// make sure the final size is not too big.
if (curw > _patches.station_spread || curh > _patches.station_spread) {
_error_message = STR_306C_STATION_TOO_SPREAD_OUT;
return false;
}
// now tile contains the new value for st->train_tile
// curw, curh contain the new value for width and height
fin[0] = tile;
fin[1] = curw;
fin[2] = curh;
return true;
}
static inline byte *CreateSingle(byte *layout, int n)
{
int i = n;
do *layout++ = 0; while (--i);
layout[((n-1) >> 1)-n] = 2;
return layout;
}
static inline byte *CreateMulti(byte *layout, int n, byte b)
{
int i = n;
do *layout++ = b; while (--i);
if (n > 4) {
layout[0-n] = 0;
layout[n-1-n] = 0;
}
return layout;
}
static void GetStationLayout(byte *layout, int numtracks, int plat_len, const StationSpec *statspec)
{
if (statspec != NULL && statspec->lengths >= plat_len &&
statspec->platforms[plat_len - 1] >= numtracks &&
statspec->layouts[plat_len - 1][numtracks - 1]) {
/* Custom layout defined, follow it. */
memcpy(layout, statspec->layouts[plat_len - 1][numtracks - 1],
plat_len * numtracks);
return;
}
if (plat_len == 1) {
CreateSingle(layout, numtracks);
} else {
if (numtracks & 1) layout = CreateSingle(layout, plat_len);
numtracks >>= 1;
while (--numtracks >= 0) {
layout = CreateMulti(layout, plat_len, 4);
layout = CreateMulti(layout, plat_len, 6);
}
}
}
/** Build railroad station
* @param tile_org starting position of station dragging/placement
* @param p1 various bitstuffed elements
* - p1 = (bit 0) - orientation (p1 & 1)
* - p1 = (bit 8-15) - number of tracks
* - p1 = (bit 16-23) - platform length
* @param p2 various bitstuffed elements
* - p2 = (bit 0- 3) - railtype (p2 & 0xF)
* - p2 = (bit 8-15) - custom station class
* - p2 = (bit 16-23) - custom station id
*/
int32 CmdBuildRailroadStation(TileIndex tile_org, uint32 flags, uint32 p1, uint32 p2)
{
Station *st;
int w_org, h_org;
int32 cost, ret;
StationID est;
int plat_len, numtracks;
Axis axis;
uint finalvalues[3];
const StationSpec *statspec;
int specindex;
SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
/* Does the authority allow this? */
if (!(flags & DC_NO_TOWN_RATING) && !CheckIfAuthorityAllows(tile_org)) return CMD_ERROR;
if (!ValParamRailtype(p2 & 0xF)) return CMD_ERROR;
/* unpack parameters */
axis = p1 & 1;
numtracks = GB(p1, 8, 8);
plat_len = GB(p1, 16, 8);
/* w = length, h = num_tracks */
if (axis == AXIS_X) {
w_org = plat_len;
h_org = numtracks;
} else {
h_org = plat_len;
w_org = numtracks;
}
if (h_org > _patches.station_spread || w_org > _patches.station_spread) return CMD_ERROR;
// these values are those that will be stored in train_tile and station_platforms
finalvalues[0] = tile_org;
finalvalues[1] = w_org;
finalvalues[2] = h_org;
// Make sure the area below consists of clear tiles. (OR tiles belonging to a certain rail station)
est = INVALID_STATION;
// If DC_EXEC is in flag, do not want to pass it to CheckFlatLandBelow, because of a nice bug
// for detail info, see: https://sourceforge.net/tracker/index.php?func=detail&aid=1029064&group_id=103924&atid=636365
ret = CheckFlatLandBelow(tile_org, w_org, h_org, flags & ~DC_EXEC, 5 << axis, _patches.nonuniform_stations ? &est : NULL);
if (CmdFailed(ret)) return ret;
cost = ret + (numtracks * _price.train_station_track + _price.train_station_length) * plat_len;
// Make sure there are no similar stations around us.
st = GetStationAround(tile_org, w_org, h_org, est);
if (st == CHECK_STATIONS_ERR) return CMD_ERROR;
// See if there is a deleted station close to us.
if (st == NULL) {
st = GetClosestStationFromTile(tile_org, 8, _current_player);
if (st != NULL && st->facilities) st = NULL;
}
if (st != NULL) {
// Reuse an existing station.
if (st->owner != OWNER_NONE && st->owner != _current_player)
return_cmd_error(STR_3009_TOO_CLOSE_TO_ANOTHER_STATION);
if (st->train_tile != 0) {
// check if we want to expanding an already existing station?
if (_is_old_ai_player || !_patches.join_stations)
return_cmd_error(STR_3005_TOO_CLOSE_TO_ANOTHER_RAILROAD);
if (!CanExpandRailroadStation(st, finalvalues, axis))
return CMD_ERROR;
}
//XXX can't we pack this in the "else" part of the if above?
if (!StationRect_BeforeAddRect(st, tile_org, w_org, h_org, RECT_MODE_TEST)) return CMD_ERROR;
} else {
// Create a new station
st = AllocateStation();
if (st == NULL) return CMD_ERROR;
st->town = ClosestTownFromTile(tile_org, (uint)-1);
if (IsValidPlayer(_current_player) && (flags & DC_EXEC))
SETBIT(st->town->have_ratings, _current_player);
if (!GenerateStationName(st, tile_org, 0)) return CMD_ERROR;
if (flags & DC_EXEC) StationInitialize(st, tile_org);
}
/* Check if the given station class is valid */
if (GB(p2, 8, 8) >= STAT_CLASS_MAX) return CMD_ERROR;
/* Check if we can allocate a custom stationspec to this station */
statspec = GetCustomStationSpec(GB(p2, 8, 8), GB(p2, 16, 8));
specindex = AllocateSpecToStation(statspec, st, flags & DC_EXEC);
if (specindex == -1) return CMD_ERROR;
if (statspec != NULL) {
/* Perform NewStation checks */
/* Check if the station size is permitted */
if (HASBIT(statspec->disallowed_platforms, numtracks - 1) || HASBIT(statspec->disallowed_lengths, plat_len - 1)) {
return CMD_ERROR;
}
/* Check if the station is buildable */
if (HASBIT(statspec->callbackmask, CBM_STATION_AVAIL) && GetStationCallback(CBID_STATION_AVAILABILITY, 0, 0, statspec, NULL, INVALID_TILE) == 0) {
return CMD_ERROR;
}
}
if (flags & DC_EXEC) {
TileIndexDiff tile_delta;
byte *layout_ptr;
byte numtracks_orig;
Track track;
// Now really clear the land below the station
// It should never return CMD_ERROR.. but you never know ;)
// (a bit strange function name for it, but it really does clear the land, when DC_EXEC is in flags)
ret = CheckFlatLandBelow(tile_org, w_org, h_org, flags, 5 << axis, _patches.nonuniform_stations ? &est : NULL);
if (CmdFailed(ret)) return ret;
st->train_tile = finalvalues[0];
if (!st->facilities) st->xy = finalvalues[0];
st->facilities |= FACIL_TRAIN;
st->owner = _current_player;
st->trainst_w = finalvalues[1];
st->trainst_h = finalvalues[2];
st->build_date = _date;
StationRect_BeforeAddRect(st, tile_org, w_org, h_org, RECT_MODE_TRY);
tile_delta = (axis == AXIS_X ? TileDiffXY(1, 0) : TileDiffXY(0, 1));
track = AxisToTrack(axis);
layout_ptr = alloca(numtracks * plat_len);
GetStationLayout(layout_ptr, numtracks, plat_len, statspec);
numtracks_orig = numtracks;
do {
TileIndex tile = tile_org;
int w = plat_len;
do {
byte layout = *layout_ptr++;
MakeRailStation(tile, st->owner, st->index, axis, layout, GB(p2, 0, 4));
SetCustomStationSpecIndex(tile, specindex);
SetStationTileRandomBits(tile, GB(Random(), 0, 4));
if (statspec != NULL) {
/* Use a fixed axis for GetPlatformInfo as our platforms / numtracks are always the right way around */
uint32 platinfo = GetPlatformInfo(AXIS_X, 0, plat_len, numtracks_orig, plat_len - w, numtracks_orig - numtracks, false);
uint16 callback = GetStationCallback(CBID_STATION_TILE_LAYOUT, platinfo, 0, statspec, st, tile);
if (callback != CALLBACK_FAILED && callback < 8) SetStationGfx(tile, callback + axis);
}
tile += tile_delta;
} while (--w);
SetSignalsOnBothDir(tile_org, track);
YapfNotifyTrackLayoutChange(tile_org, track);
tile_org += tile_delta ^ TileDiffXY(1, 1); // perpendicular to tile_delta
} while (--numtracks);
MarkStationTilesDirty(st);
UpdateStationVirtCoordDirty(st);
UpdateStationAcceptance(st, false);
RebuildStationLists();
InvalidateWindow(WC_STATION_LIST, st->owner);
}
return cost;
}
static void MakeRailwayStationAreaSmaller(Station *st)
{
uint w = st->trainst_w;
uint h = st->trainst_h;
TileIndex tile = st->train_tile;
uint i;
restart:
// too small?
if (w != 0 && h != 0) {
// check the left side, x = constant, y changes
for (i = 0; !TileBelongsToRailStation(st, tile + TileDiffXY(0, i));) {
// the left side is unused?
if (++i == h) {
tile += TileDiffXY(1, 0);
w--;
goto restart;
}
}
// check the right side, x = constant, y changes
for (i = 0; !TileBelongsToRailStation(st, tile + TileDiffXY(w - 1, i));) {
// the right side is unused?
if (++i == h) {
w--;
goto restart;
}
}
// check the upper side, y = constant, x changes
for (i = 0; !TileBelongsToRailStation(st, tile + TileDiffXY(i, 0));) {
// the left side is unused?
if (++i == w) {
tile += TileDiffXY(0, 1);
h--;
goto restart;
}
}
// check the lower side, y = constant, x changes
for (i = 0; !TileBelongsToRailStation(st, tile + TileDiffXY(i, h - 1));) {
// the left side is unused?
if (++i == w) {
h--;
goto restart;
}
}
} else {
tile = 0;
}
st->trainst_w = w;
st->trainst_h = h;
st->train_tile = tile;
}
/** Remove a single tile from a railroad station.
* This allows for custom-built station with holes and weird layouts
* @param tile tile of station piece to remove
* @param p1 unused
* @param p2 unused
*/
int32 CmdRemoveFromRailroadStation(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
{
Station *st;
SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
// make sure the specified tile belongs to the current player, and that it is a railroad station.
if (!IsTileType(tile, MP_STATION) || !IsRailwayStation(tile) || !_patches.nonuniform_stations) return CMD_ERROR;
st = GetStationByTile(tile);
if (_current_player != OWNER_WATER && (!CheckOwnership(st->owner) || !EnsureNoVehicle(tile))) return CMD_ERROR;
// if we reached here, it means we can actually delete it. do that.
if (flags & DC_EXEC) {
uint specindex = GetCustomStationSpecIndex(tile);
Track track = GetRailStationTrack(tile);
DoClearSquare(tile);
StationRect_AfterRemoveTile(st, tile);
SetSignalsOnBothDir(tile, track);
YapfNotifyTrackLayoutChange(tile, track);
DeallocateSpecFromStation(st, specindex);
// now we need to make the "spanned" area of the railway station smaller if we deleted something at the edges.
// we also need to adjust train_tile.
MakeRailwayStationAreaSmaller(st);
MarkStationTilesDirty(st);
UpdateStationSignCoord(st);
// if we deleted the whole station, delete the train facility.
if (st->train_tile == 0) {
st->facilities &= ~FACIL_TRAIN;
UpdateStationVirtCoordDirty(st);
DeleteStationIfEmpty(st);
}
}
return _price.remove_rail_station;
}
// determine the number of platforms for the station
uint GetStationPlatforms(const Station *st, TileIndex tile)
{
TileIndex t;
TileIndexDiff delta;
Axis axis;
uint len;
assert(TileBelongsToRailStation(st, tile));
len = 0;
axis = GetRailStationAxis(tile);
delta = (axis == AXIS_X ? TileDiffXY(1, 0) : TileDiffXY(0, 1));
// find starting tile..
t = tile;
do {
t -= delta;
len++;
} while (TileBelongsToRailStation(st, t) && GetRailStationAxis(t) == axis);
// find ending tile
t = tile;
do {
t += delta;
len++;
} while (TileBelongsToRailStation(st, t) && GetRailStationAxis(t) == axis);
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 GetPlatformLength(TileIndex tile, DiagDirection dir)
{
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;
}
static int32 RemoveRailroadStation(Station *st, TileIndex tile, uint32 flags)
{
int w,h;
int32 cost = 0;
/* if there is flooding and non-uniform stations are enabled, remove platforms tile by tile */
if (_current_player == OWNER_WATER && _patches.nonuniform_stations)
return DoCommand(tile, 0, 0, DC_EXEC, CMD_REMOVE_FROM_RAILROAD_STATION);
/* Current player owns the station? */
if (_current_player != OWNER_WATER && !CheckOwnership(st->owner))
return CMD_ERROR;
/* determine width and height of platforms */
tile = st->train_tile;
w = st->trainst_w;
h = st->trainst_h;
assert(w != 0 && h != 0);
/* clear all areas of the station */
do {
int w_bak = w;
do {
// for nonuniform stations, only remove tiles that are actually train station tiles
if (TileBelongsToRailStation(st, tile)) {
if (!EnsureNoVehicle(tile))
return CMD_ERROR;
cost += _price.remove_rail_station;
if (flags & DC_EXEC) {
Track track = GetRailStationTrack(tile);
DoClearSquare(tile);
SetSignalsOnBothDir(tile, track);
YapfNotifyTrackLayoutChange(tile, track);
}
}
tile += TileDiffXY(1, 0);
} while (--w);
w = w_bak;
tile += TileDiffXY(-w, 1);
} while (--h);
if (flags & DC_EXEC) {
StationRect_AfterRemoveRect(st, st->train_tile, st->trainst_w, st->trainst_h);
st->train_tile = 0;
st->trainst_w = st->trainst_h = 0;
st->facilities &= ~FACIL_TRAIN;
free(st->speclist);
st->num_specs = 0;
st->speclist = NULL;
UpdateStationVirtCoordDirty(st);
DeleteStationIfEmpty(st);
}
return cost;
}
int32 DoConvertStationRail(TileIndex tile, RailType totype, bool exec)
{
const Station* st = GetStationByTile(tile);
if (!CheckOwnership(st->owner) || !EnsureNoVehicle(tile)) return CMD_ERROR;
// tile is not a railroad station?
if (!IsRailwayStation(tile)) return CMD_ERROR;
if (GetRailType(tile) == totype) return CMD_ERROR;
// 'hidden' elrails can't be downgraded to normal rail when elrails are disabled
if (_patches.disable_elrails && totype == RAILTYPE_RAIL && GetRailType(tile) == RAILTYPE_ELECTRIC) return CMD_ERROR;
if (exec) {
SetRailType(tile, totype);
MarkTileDirtyByTile(tile);
YapfNotifyTrackLayoutChange(tile, GetRailStationTrack(tile));
}
return _price.build_rail >> 1;
}
/** Heavy wizardry used to add a roadstop to a station.
* To understand the function, lets first look at what is passed around,
* especially the last two parameters. CmdBuildRoadStop allocates a road
* stop and needs to put that stop into the linked list of road stops.
* It (CmdBuildRoadStop) has a **currstop pointer which points to element
* in the linked list of stops (each element in this list being a pointer
* in itself, hence the double pointer). We (FindRoadStopSpot) need to
* modify this pointer (**currstop) thus we need to pass by reference,
* obtaining a triple pointer (***currstop). When finished, **currstop
* in CmdBuildRoadStop will contain the address of the pointer which will
* then point into the global roadstop array. *prev (in CmdBuildRoadStop)
* is the pointer tino the global roadstop array which has *currstop in
* its ->next element.
* @param[in] truck_station Determines whether a stop is RS_BUS or RS_TRUCK
* @param[in] station The station to do the whole procedure for
* @param[out] currstop See the detailed function description
* @param prev See the detailed function description
*/
static void FindRoadStopSpot(bool truck_station, Station* st, RoadStop*** currstop, RoadStop** prev)
{
RoadStop **primary_stop = (truck_station) ? &st->truck_stops : &st->bus_stops;
assert(*prev == NULL);
if (*primary_stop == NULL) {
//we have no roadstop of the type yet, so write a "primary stop"
*currstop = primary_stop;
} else {
//there are stops already, so append to the end of the list
*prev = *primary_stop;
*currstop = &(*primary_stop)->next;
while (**currstop != NULL) {
*prev = (*prev)->next;
*currstop = &(**currstop)->next;
}
}
}
/** Build a bus or truck stop
* @param tile tile to build the stop at
* @param p1 entrance direction (DiagDirection)
* @param p2 0 for Bus stops, 1 for truck stops
*/
int32 CmdBuildRoadStop(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
{
Station *st;
RoadStop *road_stop;
RoadStop **currstop;
RoadStop *prev = NULL;
int32 cost;
int32 ret;
bool type = !!p2;
/* Saveguard the parameters */
if (!IsValidDiagDirection(p1)) return CMD_ERROR;
SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
if (!(flags & DC_NO_TOWN_RATING) && !CheckIfAuthorityAllows(tile))
return CMD_ERROR;
ret = CheckFlatLandBelow(tile, 1, 1, flags, 1 << p1, NULL);
if (CmdFailed(ret)) return ret;
cost = ret;
st = GetStationAround(tile, 1, 1, -1);
if (st == CHECK_STATIONS_ERR) return CMD_ERROR;
/* Find a station close to us */
if (st == NULL) {
st = GetClosestStationFromTile(tile, 8, _current_player);
if (st != NULL && st->facilities != 0) st = NULL;
}
//give us a road stop in the list, and check if something went wrong
road_stop = AllocateRoadStop();
if (road_stop == NULL) {
return_cmd_error(type ? STR_3008B_TOO_MANY_TRUCK_STOPS : STR_3008A_TOO_MANY_BUS_STOPS);
}
if (st != NULL &&
GetNumRoadStopsInStation(st, RS_BUS) + GetNumRoadStopsInStation(st, RS_TRUCK) >= ROAD_STOP_LIMIT) {
return_cmd_error(type ? STR_3008B_TOO_MANY_TRUCK_STOPS : STR_3008A_TOO_MANY_BUS_STOPS);
}
if (st != NULL) {
if (st->owner != OWNER_NONE && st->owner != _current_player) {
return_cmd_error(STR_3009_TOO_CLOSE_TO_ANOTHER_STATION);
}
if (!StationRect_BeforeAddTile(st, tile, RECT_MODE_TEST)) return CMD_ERROR;
FindRoadStopSpot(type, st, &currstop, &prev);
} else {
Town *t;
st = AllocateStation();
if (st == NULL) return CMD_ERROR;
st->town = t = ClosestTownFromTile(tile, (uint)-1);
FindRoadStopSpot(type, st, &currstop, &prev);
if (IsValidPlayer(_current_player) && (flags & DC_EXEC)) {
SETBIT(t->have_ratings, _current_player);
}
st->sign.width_1 = 0;
if (!GenerateStationName(st, tile, 0)) return CMD_ERROR;
if (flags & DC_EXEC) StationInitialize(st, tile);
}
cost += (type) ? _price.build_truck_station : _price.build_bus_station;
if (flags & DC_EXEC) {
//point to the correct item in the _busstops or _truckstops array
*currstop = road_stop;
//initialize an empty station
InitializeRoadStop(road_stop, prev, tile, st->index);
if (!st->facilities) st->xy = tile;
st->facilities |= (type) ? FACIL_TRUCK_STOP : FACIL_BUS_STOP;
st->owner = _current_player;
st->build_date = _date;
StationRect_BeforeAddTile(st, tile, RECT_MODE_TRY);
MakeRoadStop(tile, st->owner, st->index, type, p1);
UpdateStationVirtCoordDirty(st);
UpdateStationAcceptance(st, false);
RebuildStationLists();
InvalidateWindow(WC_STATION_LIST, st->owner);
}
return cost;
}
// Remove a bus station
static int32 RemoveRoadStop(Station *st, uint32 flags, TileIndex tile)
{
RoadStop **primary_stop;
RoadStop *cur_stop;
bool is_truck = IsTruckStop(tile);
if (_current_player != OWNER_WATER && !CheckOwnership(st->owner)) {
return CMD_ERROR;
}
if (is_truck) { // truck stop
primary_stop = &st->truck_stops;
cur_stop = GetRoadStopByTile(tile, RS_TRUCK);
} else {
primary_stop = &st->bus_stops;
cur_stop = GetRoadStopByTile(tile, RS_BUS);
}
assert(cur_stop != NULL);
if (!EnsureNoVehicle(tile)) return CMD_ERROR;
if (flags & DC_EXEC) {
//we only had one stop left
if (cur_stop->next == NULL && cur_stop->prev == NULL) {
//so we remove ALL stops
*primary_stop = NULL;
st->facilities &= (is_truck) ? ~FACIL_TRUCK_STOP : ~FACIL_BUS_STOP;
} else if (cur_stop == *primary_stop) {
//removed the first stop in the list
//need to set the primary element to the next stop
*primary_stop = (*primary_stop)->next;
}
DeleteRoadStop(cur_stop);
DoClearSquare(tile);
StationRect_AfterRemoveTile(st, tile);
UpdateStationVirtCoordDirty(st);
DeleteStationIfEmpty(st);
}
return (is_truck) ? _price.remove_truck_station : _price.remove_bus_station;
}
// FIXME -- need to move to its corresponding Airport variable
// Country Airfield (small)
static const byte _airport_sections_country[] = {
54, 53, 52, 65,
58, 57, 56, 55,
64, 63, 63, 62
};
// City Airport (large)
static const byte _airport_sections_town[] = {
31, 9, 33, 9, 9, 32,
27, 36, 29, 34, 8, 10,
30, 11, 35, 13, 20, 21,
51, 12, 14, 17, 19, 28,
38, 13, 15, 16, 18, 39,
26, 22, 23, 24, 25, 26
};
// Metropolitain Airport (large) - 2 runways
static const byte _airport_sections_metropolitan[] = {
31, 9, 33, 9, 9, 32,
27, 36, 29, 34, 8, 10,
30, 11, 35, 13, 20, 21,
102, 8, 8, 8, 8, 28,
83, 84, 84, 84, 84, 83,
26, 23, 23, 23, 23, 26
};
// International Airport (large) - 2 runways
static const byte _airport_sections_international[] = {
88, 89, 89, 89, 89, 89, 88,
51, 8, 8, 8, 8, 8, 32,
30, 8, 11, 27, 11, 8, 10,
32, 8, 11, 27, 11, 8, 114,
87, 8, 11, 85, 11, 8, 114,
87, 8, 8, 8, 8, 8, 90,
26, 23, 23, 23, 23, 23, 26
};
// Intercontinental Airport (vlarge) - 4 runways
static const byte _airport_sections_intercontinental[] = {
102, 120, 89, 89, 89, 89, 89, 89, 118,
120, 22, 22, 22, 22, 22, 22, 119, 117,
87, 54, 87, 8, 8, 8, 8, 51, 117,
87, 162, 87, 85, 116, 116, 8, 9, 10,
87, 8, 8, 11, 31, 11, 8, 160, 32,
32, 160, 8, 11, 27, 11, 8, 8, 10,
87, 8, 8, 11, 30, 11, 8, 8, 10,
87, 142, 8, 11, 29, 11, 10, 163, 10,
87, 164, 87, 8, 8, 8, 10, 37, 117,
87, 120, 89, 89, 89, 89, 89, 89, 119,
121, 22, 22, 22, 22, 22, 22, 119, 37
};
// Commuter Airfield (small)
static const byte _airport_sections_commuter[] = {
85, 30, 115, 115, 32,
87, 8, 8, 8, 10,
87, 11, 11, 11, 10,
26, 23, 23, 23, 26
};
// Heliport
static const byte _airport_sections_heliport[] = {
66,
};
// Helidepot
static const byte _airport_sections_helidepot[] = {
124, 32,
122, 123
};
// Helistation
static const byte _airport_sections_helistation[] = {
32, 134, 159, 158,
161, 142, 142, 157
};
static const byte * const _airport_sections[] = {
_airport_sections_country, // Country Airfield (small)
_airport_sections_town, // City Airport (large)
_airport_sections_heliport, // Heliport
_airport_sections_metropolitan, // Metropolitain Airport (large)
_airport_sections_international, // International Airport (xlarge)
_airport_sections_commuter, // Commuter Airport (small)
_airport_sections_helidepot, // Helidepot
_airport_sections_intercontinental, // Intercontinental Airport (xxlarge)
_airport_sections_helistation // Helistation
};
/** Place an Airport.
* @param tile tile where airport will be built
* @param p1 airport type, @see airport.h
* @param p2 unused
*/
int32 CmdBuildAirport(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
{
Town *t;
Station *st;
int32 cost;
int32 ret;
int w, h;
bool airport_upgrade = true;
const AirportFTAClass* afc;
SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
/* Check if a valid, buildable airport was chosen for construction */
if (p1 > lengthof(_airport_sections) || !HASBIT(GetValidAirports(), p1)) return CMD_ERROR;
if (!(flags & DC_NO_TOWN_RATING) && !CheckIfAuthorityAllows(tile))
return CMD_ERROR;
t = ClosestTownFromTile(tile, (uint)-1);
/* Check if local auth refuses a new airport */
{
uint num = 0;
FOR_ALL_STATIONS(st) {
if (st->town == t && st->facilities&FACIL_AIRPORT && st->airport_type != AT_OILRIG)
num++;
}
if (num >= 2) {
SetDParam(0, t->index);
return_cmd_error(STR_2035_LOCAL_AUTHORITY_REFUSES);
}
}
afc = GetAirport(p1);
w = afc->size_x;
h = afc->size_y;
ret = CheckFlatLandBelow(tile, w, h, flags, 0, NULL);
if (CmdFailed(ret)) return ret;
cost = ret;
st = GetStationAround(tile, w, h, -1);
if (st == CHECK_STATIONS_ERR) return CMD_ERROR;
/* Find a station close to us */
if (st == NULL) {
st = GetClosestStationFromTile(tile, 8, _current_player);
if (st != NULL && st->facilities) st = NULL;
}
if (st != NULL) {
if (st->owner != OWNER_NONE && st->owner != _current_player)
return_cmd_error(STR_3009_TOO_CLOSE_TO_ANOTHER_STATION);
if (!StationRect_BeforeAddRect(st, tile, w, h, RECT_MODE_TEST)) return CMD_ERROR;
if (st->airport_tile != 0)
return_cmd_error(STR_300D_TOO_CLOSE_TO_ANOTHER_AIRPORT);
} else {
airport_upgrade = false;
st = AllocateStation();
if (st == NULL) return CMD_ERROR;
st->town = t;
if (IsValidPlayer(_current_player) && (flags & DC_EXEC))
SETBIT(t->have_ratings, _current_player);
st->sign.width_1 = 0;
// if airport type equals Heliport then generate
// type 5 name, which is heliport, otherwise airport names (1)
if (!GenerateStationName(st, tile, (p1 == AT_HELIPORT)||(p1 == AT_HELIDEPOT)||(p1 == AT_HELISTATION) ? 5 : 1))
return CMD_ERROR;
if (flags & DC_EXEC) StationInitialize(st, tile);
}
cost += _price.build_airport * w * h;
if (flags & DC_EXEC) {
st->owner = _current_player;
st->airport_tile = tile;
if (!st->facilities) st->xy = tile;
st->facilities |= FACIL_AIRPORT;
st->airport_type = (byte)p1;
st->airport_flags = 0;
st->build_date = _date;
StationRect_BeforeAddRect(st, tile, w, h, RECT_MODE_TRY);
/* if airport was demolished while planes were en-route to it, the
* positions can no longer be the same (v->u.air.pos), since different
* airports have different indexes. So update all planes en-route to this
* airport. Only update if
* 1. airport is upgraded
* 2. airport is added to existing station (unfortunately unavoideable)
*/
if (airport_upgrade) UpdateAirplanesOnNewStation(st);
{
const byte *b = _airport_sections[p1];
BEGIN_TILE_LOOP(tile_cur, w, h, tile) {
MakeAirport(tile_cur, st->owner, st->index, *b++);
} END_TILE_LOOP(tile_cur, w, h, tile)
}
UpdateStationVirtCoordDirty(st);
UpdateStationAcceptance(st, false);
RebuildStationLists();
InvalidateWindow(WC_STATION_LIST, st->owner);
}
return cost;
}
static int32 RemoveAirport(Station *st, uint32 flags)
{
TileIndex tile;
int w,h;
int32 cost;
const AirportFTAClass* afc;
if (_current_player != OWNER_WATER && !CheckOwnership(st->owner))
return CMD_ERROR;
tile = st->airport_tile;
afc = GetAirport(st->airport_type);
w = afc->size_x;
h = afc->size_y;
cost = w * h * _price.remove_airport;
BEGIN_TILE_LOOP(tile_cur, w, h, tile) {
if (!EnsureNoVehicle(tile_cur)) return CMD_ERROR;
if (flags & DC_EXEC) {
DeleteAnimatedTile(tile_cur);
DoClearSquare(tile_cur);
}
} END_TILE_LOOP(tile_cur, w,h,tile)
if (flags & DC_EXEC) {
uint i;
for (i = 0; i < afc->nof_depots; ++i) {
DeleteWindowById(
WC_VEHICLE_DEPOT, tile + ToTileIndexDiff(afc->airport_depots[i])
);
}
StationRect_AfterRemoveRect(st, tile, w, h);
st->airport_tile = 0;
st->facilities &= ~FACIL_AIRPORT;
UpdateStationVirtCoordDirty(st);
DeleteStationIfEmpty(st);
}
return cost;
}
/** Build a buoy.
* @param tile tile where to place the bouy
* @param p1 unused
* @param p2 unused
*/
int32 CmdBuildBuoy(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
{
Station *st;
SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
if (!IsClearWaterTile(tile) || tile == 0) return_cmd_error(STR_304B_SITE_UNSUITABLE);
st = AllocateStation();
if (st == NULL) return CMD_ERROR;
st->town = ClosestTownFromTile(tile, (uint)-1);
st->sign.width_1 = 0;
if (!GenerateStationName(st, tile, 4)) return CMD_ERROR;
if (flags & DC_EXEC) {
StationInitialize(st, tile);
st->dock_tile = tile;
st->facilities |= FACIL_DOCK;
/* Buoys are marked in the Station struct by this flag. Yes, it is this
* braindead.. */
st->had_vehicle_of_type |= HVOT_BUOY;
st->owner = OWNER_NONE;
st->build_date = _date;
MakeBuoy(tile, st->index);
UpdateStationVirtCoordDirty(st);
UpdateStationAcceptance(st, false);
RebuildStationLists();
InvalidateWindow(WC_STATION_LIST, st->owner);
}
return _price.build_dock;
}
/* Checks if any ship is servicing the buoy specified. Returns yes or no */
static bool CheckShipsOnBuoy(Station *st)
{
const Vehicle *v;
FOR_ALL_VEHICLES(v) {
if (v->type == VEH_Ship) {
const Order *order;
FOR_VEHICLE_ORDERS(v, order) {
if (order->type == OT_GOTO_STATION && order->dest == st->index) {
return true;
}
}
}
}
return false;
}
static int32 RemoveBuoy(Station *st, uint32 flags)
{
TileIndex tile;
/* XXX: strange stuff */
if (!IsValidPlayer(_current_player)) return_cmd_error(INVALID_STRING_ID);
tile = st->dock_tile;
if (CheckShipsOnBuoy(st)) return_cmd_error(STR_BUOY_IS_IN_USE);
if (!EnsureNoVehicle(tile)) return CMD_ERROR;
if (flags & DC_EXEC) {
st->dock_tile = 0;
/* Buoys are marked in the Station struct by this flag. Yes, it is this
* braindead.. */
st->facilities &= ~FACIL_DOCK;
st->had_vehicle_of_type &= ~HVOT_BUOY;
MakeWater(tile);
MarkTileDirtyByTile(tile);
UpdateStationVirtCoordDirty(st);
DeleteStationIfEmpty(st);
}
return _price.remove_truck_station;
}
static const TileIndexDiffC _dock_tileoffs_chkaround[] = {
{-1, 0},
{ 0, 0},
{ 0, 0},
{ 0, -1}
};
static const byte _dock_w_chk[4] = { 2, 1, 2, 1 };
static const byte _dock_h_chk[4] = { 1, 2, 1, 2 };
/** Build a dock/haven.
* @param tile tile where dock will be built
* @param p1 unused
* @param p2 unused
*/
int32 CmdBuildDock(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
{
TileIndex tile_cur;
DiagDirection direction;
int32 cost;
Station *st;
SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);
switch (GetTileSlope(tile, NULL)) {
case SLOPE_SW: direction = DIAGDIR_NE; break;
case SLOPE_SE: direction = DIAGDIR_NW; break;
case SLOPE_NW: direction = DIAGDIR_SE; break;
case SLOPE_NE: direction = DIAGDIR_SW; break;
default: return_cmd_error(STR_304B_SITE_UNSUITABLE);
}
if (!(flags & DC_NO_TOWN_RATING) && !CheckIfAuthorityAllows(tile)) return CMD_ERROR;
if (!EnsureNoVehicle(tile)) return CMD_ERROR;
cost = DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
if (CmdFailed(cost)) return CMD_ERROR;
tile_cur = tile + TileOffsByDiagDir(direction);
if (!EnsureNoVehicle(tile_cur)) return CMD_ERROR;
if (!IsTileType(tile_cur, MP_WATER) || GetTileSlope(tile_cur, NULL) != SLOPE_FLAT) {
return_cmd_error(STR_304B_SITE_UNSUITABLE);
}
cost = DoCommand(tile_cur, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
if (CmdFailed(cost)) return CMD_ERROR;
tile_cur += TileOffsByDiagDir(direction);
if (!IsTileType(tile_cur, MP_WATER) || GetTileSlope(tile_cur, NULL) != SLOPE_FLAT) {
return_cmd_error(STR_304B_SITE_UNSUITABLE);
}
/* middle */
st = GetStationAround(
tile + ToTileIndexDiff(_dock_tileoffs_chkaround[direction]),
_dock_w_chk[direction], _dock_h_chk[direction], -1);
if (st == CHECK_STATIONS_ERR) return CMD_ERROR;
/* Find a station close to us */
if (st == NULL) {
st = GetClosestStationFromTile(tile, 8, _current_player);
if (st!=NULL && st->facilities) st = NULL;
}
if (st != NULL) {
if (st->owner != OWNER_NONE && st->owner != _current_player)
return_cmd_error(STR_3009_TOO_CLOSE_TO_ANOTHER_STATION);
if (!StationRect_BeforeAddRect(st, tile, _dock_w_chk[direction], _dock_h_chk[direction], RECT_MODE_TEST)) return CMD_ERROR;
if (st->dock_tile != 0) return_cmd_error(STR_304C_TOO_CLOSE_TO_ANOTHER_DOCK);
} else {
Town *t;
st = AllocateStation();
if (st == NULL) return CMD_ERROR;
st->town = t = ClosestTownFromTile(tile, (uint)-1);
if (IsValidPlayer(_current_player) && (flags & DC_EXEC))
SETBIT(t->have_ratings, _current_player);
st->sign.width_1 = 0;
if (!GenerateStationName(st, tile, 3)) return CMD_ERROR;
if (flags & DC_EXEC) StationInitialize(st, tile);
}
if (flags & DC_EXEC) {
st->dock_tile = tile;
if (!st->facilities) st->xy = tile;
st->facilities |= FACIL_DOCK;
st->owner = _current_player;
st->build_date = _date;
StationRect_BeforeAddRect(st, tile, _dock_w_chk[direction], _dock_h_chk[direction], RECT_MODE_TRY);
MakeDock(tile, st->owner, st->index, direction);
UpdateStationVirtCoordDirty(st);
UpdateStationAcceptance(st, false);
RebuildStationLists();
InvalidateWindow(WC_STATION_LIST, st->owner);
}
return _price.build_dock;
}
static int32 RemoveDock(Station *st, uint32 flags)
{
TileIndex tile1;
TileIndex tile2;
if (!CheckOwnership(st->owner)) return CMD_ERROR;
tile1 = st->dock_tile;
tile2 = tile1 + TileOffsByDiagDir(GetDockDirection(tile1));
if (!EnsureNoVehicle(tile1)) return CMD_ERROR;
if (!EnsureNoVehicle(tile2)) return CMD_ERROR;
if (flags & DC_EXEC) {
DoClearSquare(tile1);
MakeWater(tile2);
StationRect_AfterRemoveTile(st, tile1);
StationRect_AfterRemoveTile(st, tile2);
MarkTileDirtyByTile(tile2);
st->dock_tile = 0;
st->facilities &= ~FACIL_DOCK;
UpdateStationVirtCoordDirty(st);
DeleteStationIfEmpty(st);
}
return _price.remove_dock;
}
#include "table/station_land.h"
const DrawTileSprites *GetStationTileLayout(byte gfx)
{
return &_station_display_datas[gfx];
}
static void DrawTile_Station(TileInfo *ti)
{
uint32 image;
const DrawTileSeqStruct *dtss;
const DrawTileSprites *t = NULL;
RailType railtype = GetRailType(ti->tile);
const RailtypeInfo *rti = GetRailTypeInfo(railtype);
uint32 relocation = 0;
const Station *st = NULL;
const StationSpec *statspec = NULL;
PlayerID owner = GetTileOwner(ti->tile);
uint32 palette;
if (IsValidPlayer(owner)) {
palette = PLAYER_SPRITE_COLOR(owner);
} else {
// Some stations are not owner by a player, namely oil rigs
palette = PALETTE_TO_GREY;
}
// don't show foundation for docks
if (ti->tileh != SLOPE_FLAT && !IsDock(ti->tile))
DrawFoundation(ti, ti->tileh);
if (IsCustomStationSpecIndex(ti->tile)) {
// look for customization
st = GetStationByTile(ti->tile);
statspec = st->speclist[GetCustomStationSpecIndex(ti->tile)].spec;
//debug("Cust-o-mized %p", statspec);
if (statspec != NULL) {
uint tile = GetStationGfx(ti->tile);
relocation = GetCustomStationRelocation(statspec, st, ti->tile);
if (HASBIT(statspec->callbackmask, CBM_CUSTOM_LAYOUT)) {
uint16 callback = GetStationCallback(CBID_STATION_SPRITE_LAYOUT, 0, 0, statspec, st, ti->tile);
if (callback != CALLBACK_FAILED) tile = (callback & ~1) + GetRailStationAxis(ti->tile);
}
/* Ensure the chosen tile layout is valid for this custom station */
if (statspec->renderdata != NULL) {
t = &statspec->renderdata[tile < statspec->tiles ? tile : GetRailStationAxis(ti->tile)];
}
}
}
if (t == NULL || t->seq == NULL) t = &_station_display_datas[GetStationGfx(ti->tile)];
image = t->ground_sprite;
if (HASBIT(image, 31)) {
CLRBIT(image, 31);
image += GetCustomStationGroundRelocation(statspec, st, ti->tile);
image += rti->custom_ground_offset;
} else {
image += rti->total_offset;
}
if (image & PALETTE_MODIFIER_COLOR) image |= palette;
// station_land array has been increased from 82 elements to 114
// but this is something else. If AI builds station with 114 it looks all weird
DrawGroundSprite(image);
if (GetRailType(ti->tile) == RAILTYPE_ELECTRIC && IsStationTileElectrifiable(ti->tile)) DrawCatenary(ti);
foreach_draw_tile_seq(dtss, t->seq) {
image = dtss->image;
if (HASBIT(image, 30)) {
CLRBIT(image, 30);
image += rti->total_offset;
} else {
image += relocation;
}
if (_display_opt & DO_TRANS_BUILDINGS) {
MAKE_TRANSPARENT(image);
} else if (image & PALETTE_MODIFIER_COLOR) {
image |= palette;
}
if ((byte)dtss->delta_z != 0x80) {
AddSortableSpriteToDraw(
image,
ti->x + dtss->delta_x, ti->y + dtss->delta_y,
dtss->size_x, dtss->size_y,
dtss->size_z, ti->z + dtss->delta_z
);
} else {
AddChildSpriteScreen(image, dtss->delta_x, dtss->delta_y);
}
}
}
void StationPickerDrawSprite(int x, int y, RailType railtype, int image)
{
uint32 ormod, img;
const DrawTileSeqStruct *dtss;
const DrawTileSprites *t;
const RailtypeInfo *rti = GetRailTypeInfo(railtype);
ormod = PLAYER_SPRITE_COLOR(_local_player);
t = &_station_display_datas[image];
img = t->ground_sprite;
if (img & PALETTE_MODIFIER_COLOR) img |= ormod;
DrawSprite(img + rti->total_offset, x, y);
foreach_draw_tile_seq(dtss, t->seq) {
Point pt = RemapCoords(dtss->delta_x, dtss->delta_y, dtss->delta_z);
DrawSprite((dtss->image | ormod) + rti->total_offset, x + pt.x, y + pt.y);
}
}
static uint GetSlopeZ_Station(TileIndex tile, uint x, uint y)
{
return GetTileMaxZ(tile);
}
static Slope GetSlopeTileh_Station(TileIndex tile, Slope tileh)
{
return SLOPE_FLAT;
}
static void GetAcceptedCargo_Station(TileIndex tile, AcceptedCargo ac)
{
/* not used */
}
static void GetTileDesc_Station(TileIndex tile, TileDesc *td)
{
StringID str;
td->owner = GetTileOwner(tile);
td->build_date = GetStationByTile(tile)->build_date;
switch (GetStationType(tile)) {
default: NOT_REACHED();
case STATION_RAIL: str = STR_305E_RAILROAD_STATION; break;
case STATION_AIRPORT:
str = (IsHangar(tile) ? STR_305F_AIRCRAFT_HANGAR : STR_3060_AIRPORT);
break;
case STATION_TRUCK: str = STR_3061_TRUCK_LOADING_AREA; break;
case STATION_BUS: str = STR_3062_BUS_STATION; break;
case STATION_OILRIG: str = STR_4807_OIL_RIG; break;
case STATION_DOCK: str = STR_3063_SHIP_DOCK; break;
case STATION_BUOY: str = STR_3069_BUOY; break;
}
td->str = str;
}
static uint32 GetTileTrackStatus_Station(TileIndex tile, TransportType mode)
{
switch (mode) {
case TRANSPORT_RAIL:
if (IsRailwayStation(tile) && !IsStationTileBlocked(tile)) {
return TrackToTrackBits(GetRailStationTrack(tile)) * 0x101;
}
break;
case TRANSPORT_WATER:
// buoy is coded as a station, it is always on open water
if (IsBuoy_(tile)) return TRACK_BIT_ALL * 0x101;
break;
case TRANSPORT_ROAD:
if (IsRoadStopTile(tile)) {
return AxisToTrackBits(DiagDirToAxis(GetRoadStopDir(tile))) * 0x101;
}
break;
default:
break;
}
return 0;
}
static void TileLoop_Station(TileIndex tile)
{
// FIXME -- GetTileTrackStatus_Station -> animated stationtiles
// hardcoded.....not good
switch (GetStationGfx(tile)) {
case GFX_RADAR_LARGE_FIRST:
case GFX_WINDSACK_FIRST : // for small airport
case GFX_RADAR_INTERNATIONAL_FIRST:
case GFX_RADAR_METROPOLITAN_FIRST:
case GFX_RADAR_DISTRICTWE_FIRST: // radar district W-E airport
case GFX_WINDSACK_INTERCON_FIRST : // for intercontinental airport
AddAnimatedTile(tile);
break;
case GFX_OILRIG_BASE: //(station part)
case GFX_BUOY_BASE:
TileLoop_Water(tile);
break;
default: break;
}
}
static void AnimateTile_Station(TileIndex tile)
{
typedef struct AnimData {
StationGfx from; // first sprite
StationGfx to; // last sprite
byte delay;
} AnimData;
static const AnimData data[] = {
{ GFX_RADAR_LARGE_FIRST, GFX_RADAR_LARGE_LAST, 3 },
{ GFX_WINDSACK_FIRST, GFX_WINDSACK_LAST, 1 },
{ GFX_RADAR_INTERNATIONAL_FIRST, GFX_RADAR_INTERNATIONAL_LAST, 3 },
{ GFX_RADAR_METROPOLITAN_FIRST, GFX_RADAR_METROPOLITAN_LAST, 3 },
{ GFX_RADAR_DISTRICTWE_FIRST, GFX_RADAR_DISTRICTWE_LAST, 3 },
{ GFX_WINDSACK_INTERCON_FIRST, GFX_WINDSACK_INTERCON_LAST, 1 }
};
StationGfx gfx = GetStationGfx(tile);
const AnimData* i;
for (i = data; i != endof(data); i++) {
if (i->from <= gfx && gfx <= i->to) {
if ((_tick_counter & i->delay) == 0) {
SetStationGfx(tile, gfx < i->to ? gfx + 1 : i->from);
MarkTileDirtyByTile(tile);
}
break;
}
}
}
static void ClickTile_Station(TileIndex tile)
{
if (IsHangar(tile)) {
ShowDepotWindow(tile, VEH_Aircraft);
} else {
ShowStationViewWindow(GetStationIndex(tile));
}
}
static const byte _enter_station_speedtable[12] = {
215, 195, 175, 155, 135, 115, 95, 75, 55, 35, 15, 0
};
static uint32 VehicleEnter_Station(Vehicle *v, TileIndex tile, int x, int y)
{
if (v->type == VEH_Train) {
if (IsRailwayStation(tile) && IsFrontEngine(v) &&
!IsCompatibleTrainStationTile(tile + TileOffsByDiagDir(DirToDiagDir(v->direction)), tile)) {
StationID station_id = GetStationIndex(tile);
if ((!(v->current_order.flags & OF_NON_STOP) && !_patches.new_nonstop) ||
(v->current_order.type == OT_GOTO_STATION && v->current_order.dest == station_id)) {
if (!(_patches.new_nonstop && v->current_order.flags & OF_NON_STOP) &&
v->current_order.type != OT_LEAVESTATION &&
v->last_station_visited != station_id) {
DiagDirection dir = DirToDiagDir(v->direction);
x &= 0xF;
y &= 0xF;
if (DiagDirToAxis(dir) != AXIS_X) intswap(x, y);
if (y == TILE_SIZE / 2) {
if (dir != DIAGDIR_SE && dir != DIAGDIR_SW) x = TILE_SIZE - 1 - x;
if (x == 12) return 2 | (station_id << 8); /* enter station */
if (x < 12) {
uint16 spd;
v->vehstatus |= VS_TRAIN_SLOWING;
spd = _enter_station_speedtable[x];
if (spd < v->cur_speed) v->cur_speed = spd;
}
}
}
}
}
} else if (v->type == VEH_Road) {
if (v->u.road.state < 16 && !HASBIT(v->u.road.state, 2) && v->u.road.frame == 0) {
if (IsRoadStop(tile)) {
/* Attempt to allocate a parking bay in a road stop */
RoadStop *rs = GetRoadStopByTile(tile, GetRoadStopType(tile));
/* rs->status bits 0 and 1 describe current the two parking spots.
* 0 means occupied, 1 means free. */
// Check if station is busy or if there are no free bays.
if (HASBIT(rs->status, 7) || GB(rs->status, 0, 2) == 0)
return 8;
v->u.road.state += 32;
// if the first bay is free, allocate that, else the second bay must be free.
if (HASBIT(rs->status, 0)) {
CLRBIT(rs->status, 0);
} else {
CLRBIT(rs->status, 1);
v->u.road.state += 2;
}
// mark the station as busy
SETBIT(rs->status, 7);
}
}
}
return 0;
}
/**
* Cleanup a RoadStop. Make sure no vehicles try to go to this roadstop.
*/
void DestroyRoadStop(RoadStop* rs)
{
Vehicle *v;
/* Clear the slot assignment of all vehicles heading for this road stop */
if (rs->num_vehicles != 0) {
FOR_ALL_VEHICLES(v) {
if (v->type == VEH_Road && v->u.road.slot == rs) {
ClearSlot(v);
}
}
}
assert(rs->num_vehicles == 0);
if (rs->prev != NULL) rs->prev->next = rs->next;
if (rs->next != NULL) rs->next->prev = rs->prev;
}
/**
* 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.
* @param st Station to be deleted
*/
void DestroyStation(Station *st)
{
StationID index;
index = st->index;
DeleteName(st->string_id);
MarkStationDirty(st);
RebuildStationLists();
InvalidateWindowClasses(WC_STATION_LIST);
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);
free(st->speclist);
}
void DeleteAllPlayerStations(void)
{
Station *st;
FOR_ALL_STATIONS(st) {
if (IsValidPlayer(st->owner)) DeleteStation(st);
}
}
/* this function is called for one station each tick */
static void StationHandleBigTick(Station *st)
{
UpdateStationAcceptance(st, true);
if (st->facilities == 0 && ++st->delete_ctr >= 8) DeleteStation(st);
}
static inline void byte_inc_sat(byte *p) { byte b = *p + 1; if (b != 0) *p = b; }
static void UpdateStationRating(Station *st)
{
GoodsEntry *ge;
int rating;
StationID index;
int waiting;
bool waiting_changed = false;
byte_inc_sat(&st->time_since_load);
byte_inc_sat(&st->time_since_unload);
ge = st->goods;
do {
if (ge->enroute_from != INVALID_STATION) {
byte_inc_sat(&ge->enroute_time);
byte_inc_sat(&ge->days_since_pickup);
rating = 0;
{
int b = ge->last_speed;
if ((b-=85) >= 0)
rating += b >> 2;
}
{
byte age = ge->last_age;
(age >= 3) ||
(rating += 10, age >= 2) ||
(rating += 10, age >= 1) ||
(rating += 13, true);
}
if (IsValidPlayer(st->owner) && HASBIT(st->town->statues, st->owner)) rating += 26;
{
byte days = ge->days_since_pickup;
if (st->last_vehicle_type == VEH_Ship)
days >>= 2;
(days > 21) ||
(rating += 25, days > 12) ||
(rating += 25, days > 6) ||
(rating += 45, days > 3) ||
(rating += 35, true);
}
{
waiting = GB(ge->waiting_acceptance, 0, 12);
(rating -= 90, waiting > 1500) ||
(rating += 55, waiting > 1000) ||
(rating += 35, waiting > 600) ||
(rating += 10, waiting > 300) ||
(rating += 20, waiting > 100) ||
(rating += 10, true);
}
{
int or = ge->rating; // old rating
// only modify rating in steps of -2, -1, 0, 1 or 2
ge->rating = rating = or + clamp(clamp(rating, 0, 255) - or, -2, 2);
// if rating is <= 64 and more than 200 items waiting, remove some random amount of goods from the station
if (rating <= 64 && waiting >= 200) {
int dec = Random() & 0x1F;
if (waiting < 400) dec &= 7;
waiting -= dec + 1;
waiting_changed = true;
}
// if rating is <= 127 and there are any items waiting, maybe remove some goods.
if (rating <= 127 && waiting != 0) {
uint32 r = Random();
if ( (uint)rating <= (r & 0x7F) ) {
waiting = max(waiting - ((r >> 8)&3) - 1, 0);
waiting_changed = true;
}
}
if (waiting_changed) SB(ge->waiting_acceptance, 0, 12, waiting);
}
}
} while (++ge != endof(st->goods));
index = st->index;
if (waiting_changed) {
InvalidateWindow(WC_STATION_VIEW, index);
} else {
InvalidateWindowWidget(WC_STATION_VIEW, index, 5);
}
}
/* called for every station each tick */
static void StationHandleSmallTick(Station *st)
{
byte b;
if (st->facilities == 0) return;
b = st->delete_ctr + 1;
if (b >= 185) b = 0;
st->delete_ctr = b;
if (b == 0) UpdateStationRating(st);
}
void OnTick_Station(void)
{
uint i;
Station *st;
if (_game_mode == GM_EDITOR) return;
i = _station_tick_ctr;
if (++_station_tick_ctr > GetMaxStationIndex()) _station_tick_ctr = 0;
if (IsValidStationID(i)) StationHandleBigTick(GetStation(i));
FOR_ALL_STATIONS(st) {
StationHandleSmallTick(st);
}
}
void StationMonthlyLoop(void)
{
}
void ModifyStationRatingAround(TileIndex tile, PlayerID owner, int amount, uint radius)
{
Station *st;
FOR_ALL_STATIONS(st) {
if (st->owner == owner &&
DistanceManhattan(tile, st->xy) <= radius) {
uint i;
for (i = 0; i != NUM_CARGO; i++) {
GoodsEntry* ge = &st->goods[i];
if (ge->enroute_from != INVALID_STATION) {
ge->rating = clamp(ge->rating + amount, 0, 255);
}
}
}
}
}
static void UpdateStationWaiting(Station *st, int type, uint amount)
{
SB(st->goods[type].waiting_acceptance, 0, 12,
min(0xFFF, GB(st->goods[type].waiting_acceptance, 0, 12) + amount)
);
st->goods[type].enroute_time = 0;
st->goods[type].enroute_from = st->index;
InvalidateWindow(WC_STATION_VIEW, st->index);
MarkStationTilesDirty(st);
}
/** Rename a station
* @param tile unused
* @param p1 station ID that is to be renamed
* @param p2 unused
*/
int32 CmdRenameStation(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
{
StringID str;
Station *st;
if (!IsValidStationID(p1) || _cmd_text[0] == '\0') return CMD_ERROR;
st = GetStation(p1);
if (!CheckOwnership(st->owner)) return CMD_ERROR;
str = AllocateNameUnique(_cmd_text, 6);
if (str == 0) return CMD_ERROR;
if (flags & DC_EXEC) {
StringID old_str = st->string_id;
st->string_id = str;
UpdateStationVirtCoord(st);
DeleteName(old_str);
ResortStationLists();
MarkWholeScreenDirty();
} else {
DeleteName(str);
}
return 0;
}
uint MoveGoodsToStation(TileIndex tile, int w, int h, int type, uint amount)
{
Station* around[8];
uint i;
uint moved;
uint best_rating, best_rating2;
Station *st1, *st2;
uint t;
int rad = 0;
int w_prod; //width and height of the "producer" of the cargo
int h_prod;
int max_rad;
for (i = 0; i < lengthof(around); i++) around[i] = NULL;
if (_patches.modified_catchment) {
w_prod = w;
h_prod = h;
w += 16;
h += 16;
max_rad = 8;
} else {
w_prod = 0;
h_prod = 0;
w += 8;
h += 8;
max_rad = 4;
}
BEGIN_TILE_LOOP(cur_tile, w, h, tile - TileDiffXY(max_rad, max_rad))
Station* st;
cur_tile = TILE_MASK(cur_tile);
if (!IsTileType(cur_tile, MP_STATION)) continue;
st = GetStationByTile(cur_tile);
for (i = 0; i != lengthof(around); i++) {
if (around[i] == NULL) {
if (!IsBuoy(st) &&
(st->town->exclusive_counter == 0 || st->town->exclusivity == st->owner) && // check exclusive transport rights
st->goods[type].rating != 0 &&
(!_patches.selectgoods || st->goods[type].last_speed > 0) && // if last_speed is 0, no vehicle has been there.
((st->facilities & ~FACIL_BUS_STOP) != 0 || type == CT_PASSENGERS) && // if we have other fac. than a bus stop, or the cargo is passengers
((st->facilities & ~FACIL_TRUCK_STOP) != 0 || type != CT_PASSENGERS)) { // if we have other fac. than a cargo bay or the cargo is not passengers
int x_dist;
int y_dist;
if (_patches.modified_catchment) {
// min and max coordinates of the producer relative
const int x_min_prod = 9;
const int x_max_prod = 8 + w_prod;
const int y_min_prod = 9;
const int y_max_prod = 8 + h_prod;
rad = FindCatchmentRadius(st);
x_dist = min(w_cur - x_min_prod, x_max_prod - w_cur);
if (w_cur < x_min_prod) {
x_dist = x_min_prod - w_cur;
} else if (w_cur > x_max_prod) {
x_dist = w_cur - x_max_prod;
}
y_dist = min(h_cur - y_min_prod, y_max_prod - h_cur);
if (h_cur < y_min_prod) {
y_dist = y_min_prod - h_cur;
} else if (h_cur > y_max_prod) {
y_dist = h_cur - y_max_prod;
}
} else {
x_dist = 0;
y_dist = 0;
}
if (x_dist <= rad && y_dist <= rad) around[i] = st;
}
break;
} else if (around[i] == st) {
break;
}
}
END_TILE_LOOP(cur_tile, w, h, tile - TileDiffXY(max_rad, max_rad))
/* no stations around at all? */
if (around[0] == NULL) return 0;
if (around[1] == NULL) {
/* only one station around */
moved = (amount * around[0]->goods[type].rating >> 8) + 1;
UpdateStationWaiting(around[0], type, moved);
return moved;
}
/* several stations around, find the two with the highest rating */
st2 = st1 = NULL;
best_rating = best_rating2 = 0;
for (i = 0; i != lengthof(around) && around[i] != NULL; i++) {
if (around[i]->goods[type].rating >= best_rating) {
best_rating2 = best_rating;
st2 = st1;
best_rating = around[i]->goods[type].rating;
st1 = around[i];
} else if (around[i]->goods[type].rating >= best_rating2) {
best_rating2 = around[i]->goods[type].rating;
st2 = around[i];
}
}
assert(st1 != NULL);
assert(st2 != NULL);
assert(best_rating != 0 || best_rating2 != 0);
/* the 2nd highest one gets a penalty */
best_rating2 >>= 1;
/* amount given to station 1 */
t = (best_rating * (amount + 1)) / (best_rating + best_rating2);
moved = 0;
if (t != 0) {
moved = t * best_rating / 256 + 1;
amount -= t;
UpdateStationWaiting(st1, type, moved);
}
if (amount != 0) {
amount = amount * best_rating2 / 256 + 1;
moved += amount;
UpdateStationWaiting(st2, type, amount);
}
return moved;
}
void BuildOilRig(TileIndex tile)
{
uint j;
Station *st = AllocateStation();
if (st == NULL) {
DEBUG(misc, 0, "Can't allocate station for oilrig at 0x%X, reverting to oilrig only", tile);
return;
}
if (!GenerateStationName(st, tile, 2)) {
DEBUG(misc, 0, "Can't allocate station-name for oilrig at 0x%X, reverting to oilrig only", tile);
return;
}
st->town = ClosestTownFromTile(tile, (uint)-1);
st->sign.width_1 = 0;
MakeOilrig(tile, st->index);
st->owner = OWNER_NONE;
st->airport_flags = 0;
st->airport_type = AT_OILRIG;
st->xy = tile;
st->bus_stops = NULL;
st->truck_stops = NULL;
st->airport_tile = tile;
st->dock_tile = tile;
st->train_tile = 0;
st->had_vehicle_of_type = 0;
st->time_since_load = 255;
st->time_since_unload = 255;
st->delete_ctr = 0;
st->last_vehicle_type = VEH_Invalid;
st->facilities = FACIL_AIRPORT | FACIL_DOCK;
st->build_date = _date;
for (j = 0; j != NUM_CARGO; j++) {
st->goods[j].waiting_acceptance = 0;
st->goods[j].days_since_pickup = 0;
st->goods[j].enroute_from = INVALID_STATION;
st->goods[j].rating = 175;
st->goods[j].last_speed = 0;
st->goods[j].last_age = 255;
}
UpdateStationVirtCoordDirty(st);
UpdateStationAcceptance(st, false);
}
void DeleteOilRig(TileIndex tile)
{
Station* st = GetStationByTile(tile);
DoClearSquare(tile);
st->dock_tile = 0;
st->airport_tile = 0;
st->facilities &= ~(FACIL_AIRPORT | FACIL_DOCK);
st->airport_flags = 0;
UpdateStationVirtCoordDirty(st);
DeleteStation(st);
}
static void ChangeTileOwner_Station(TileIndex tile, PlayerID old_player, PlayerID new_player)
{
if (!IsTileOwner(tile, old_player)) return;
if (new_player != PLAYER_SPECTATOR) {
Station* st = GetStationByTile(tile);
SetTileOwner(tile, new_player);
st->owner = new_player;
RebuildStationLists();
InvalidateWindowClasses(WC_STATION_LIST);
} else {
DoCommand(tile, 0, 0, DC_EXEC, CMD_LANDSCAPE_CLEAR);
}
}
static int32 ClearTile_Station(TileIndex tile, byte flags)
{
Station *st;
if (flags & DC_AUTO) {
switch (GetStationType(tile)) {
case STATION_RAIL: return_cmd_error(STR_300B_MUST_DEMOLISH_RAILROAD);
case STATION_AIRPORT: return_cmd_error(STR_300E_MUST_DEMOLISH_AIRPORT_FIRST);
case STATION_TRUCK: return_cmd_error(STR_3047_MUST_DEMOLISH_TRUCK_STATION);
case STATION_BUS: return_cmd_error(STR_3046_MUST_DEMOLISH_BUS_STATION);
case STATION_BUOY: return_cmd_error(STR_306A_BUOY_IN_THE_WAY);
case STATION_DOCK: return_cmd_error(STR_304D_MUST_DEMOLISH_DOCK_FIRST);
case STATION_OILRIG:
SetDParam(0, STR_4807_OIL_RIG);
return_cmd_error(STR_4800_IN_THE_WAY);
}
}
st = GetStationByTile(tile);
switch (GetStationType(tile)) {
case STATION_RAIL: return RemoveRailroadStation(st, tile, flags);
case STATION_AIRPORT: return RemoveAirport(st, flags);
case STATION_TRUCK:
case STATION_BUS: return RemoveRoadStop(st, flags, tile);
case STATION_BUOY: return RemoveBuoy(st, flags);
case STATION_DOCK: return RemoveDock(st, flags);
default: break;
}
return CMD_ERROR;
}
void InitializeStations(void)
{
/* Clean the station pool and create 1 block in it */
CleanPool(&_Station_pool);
AddBlockToPool(&_Station_pool);
/* Clean the roadstop pool and create 1 block in it */
CleanPool(&_RoadStop_pool);
AddBlockToPool(&_RoadStop_pool);
_station_tick_ctr = 0;
}
void AfterLoadStations(void)
{
Station *st;
uint i;
TileIndex tile;
/* Update the speclists of all stations to point to the currently loaded custom stations. */
FOR_ALL_STATIONS(st) {
for (i = 0; i < st->num_specs; i++) {
if (st->speclist[i].grfid == 0) continue;
st->speclist[i].spec = GetCustomStationSpecByGrf(st->speclist[i].grfid, st->speclist[i].localidx);
}
}
for (tile = 0; tile < MapSize(); tile++) {
if (GetTileType(tile) != MP_STATION) continue;
st = GetStationByTile(tile);
StationRect_BeforeAddTile(st, tile, RECT_MODE_FORCE);
}
}
const TileTypeProcs _tile_type_station_procs = {
DrawTile_Station, /* draw_tile_proc */
GetSlopeZ_Station, /* get_slope_z_proc */
ClearTile_Station, /* clear_tile_proc */
GetAcceptedCargo_Station, /* get_accepted_cargo_proc */
GetTileDesc_Station, /* get_tile_desc_proc */
GetTileTrackStatus_Station, /* get_tile_track_status_proc */
ClickTile_Station, /* click_tile_proc */
AnimateTile_Station, /* animate_tile_proc */
TileLoop_Station, /* tile_loop_clear */
ChangeTileOwner_Station, /* change_tile_owner_clear */
NULL, /* get_produced_cargo_proc */
VehicleEnter_Station, /* vehicle_enter_tile_proc */
GetSlopeTileh_Station, /* get_slope_tileh_proc */
};
static const SaveLoad _roadstop_desc[] = {
SLE_VAR(RoadStop,xy, SLE_UINT32),
SLE_VAR(RoadStop,used, SLE_BOOL),
SLE_VAR(RoadStop,status, SLE_UINT8),
/* Index was saved in some versions, but this is not needed */
SLE_CONDNULL(4, 0, 8),
SLE_VAR(RoadStop,station, SLE_UINT16),
SLE_CONDNULL(1, 0, 25),
SLE_REF(RoadStop,next, REF_ROADSTOPS),
SLE_REF(RoadStop,prev, REF_ROADSTOPS),
SLE_CONDNULL(4, 0, 24),
SLE_CONDNULL(1, 25, 25),
SLE_END()
};
static const SaveLoad _station_desc[] = {
SLE_CONDVAR(Station, xy, SLE_FILE_U16 | SLE_VAR_U32, 0, 5),
SLE_CONDVAR(Station, xy, SLE_UINT32, 6, SL_MAX_VERSION),
SLE_CONDVAR(Station, bus_tile_obsolete, SLE_FILE_U16 | SLE_VAR_U32, 0, 5),
SLE_CONDVAR(Station, lorry_tile_obsolete, SLE_FILE_U16 | SLE_VAR_U32, 0, 5),
SLE_CONDVAR(Station, train_tile, SLE_FILE_U16 | SLE_VAR_U32, 0, 5),
SLE_CONDVAR(Station, train_tile, SLE_UINT32, 6, SL_MAX_VERSION),
SLE_CONDVAR(Station, airport_tile, SLE_FILE_U16 | SLE_VAR_U32, 0, 5),
SLE_CONDVAR(Station, airport_tile, SLE_UINT32, 6, SL_MAX_VERSION),
SLE_CONDVAR(Station, dock_tile, SLE_FILE_U16 | SLE_VAR_U32, 0, 5),
SLE_CONDVAR(Station, dock_tile, SLE_UINT32, 6, SL_MAX_VERSION),
SLE_REF(Station, town, REF_TOWN),
SLE_VAR(Station, trainst_w, SLE_UINT8),
SLE_CONDVAR(Station, trainst_h, SLE_UINT8, 2, SL_MAX_VERSION),
// alpha_order was stored here in savegame format 0 - 3
SLE_CONDNULL(1, 0, 3),
SLE_VAR(Station, string_id, SLE_STRINGID),
SLE_VAR(Station, had_vehicle_of_type, SLE_UINT16),
SLE_VAR(Station, time_since_load, SLE_UINT8),
SLE_VAR(Station, time_since_unload, SLE_UINT8),
SLE_VAR(Station, delete_ctr, SLE_UINT8),
SLE_VAR(Station, owner, SLE_UINT8),
SLE_VAR(Station, facilities, SLE_UINT8),
SLE_VAR(Station, airport_type, SLE_UINT8),
// truck/bus_stop_status was stored here in savegame format 0 - 6
SLE_CONDVAR(Station, truck_stop_status_obsolete, SLE_UINT8, 0, 5),
SLE_CONDVAR(Station, bus_stop_status_obsolete, SLE_UINT8, 0, 5),
// blocked_months was stored here in savegame format 0 - 4.0
SLE_CONDVAR(Station, blocked_months_obsolete, SLE_UINT8, 0, 4),
SLE_CONDVAR(Station, airport_flags, SLE_VAR_U32 | SLE_FILE_U16, 0, 2),
SLE_CONDVAR(Station, airport_flags, SLE_UINT32, 3, SL_MAX_VERSION),
SLE_CONDNULL(2, 0, 25), /* Ex last-vehicle */
SLE_CONDVAR(Station, last_vehicle_type, SLE_UINT8, 26, SL_MAX_VERSION),
// Was custom station class and id
SLE_CONDNULL(2, 3, 25),
SLE_CONDVAR(Station, build_date, SLE_FILE_U16 | SLE_VAR_I32, 3, 30),
SLE_CONDVAR(Station, build_date, SLE_INT32, 31, SL_MAX_VERSION),
SLE_CONDREF(Station, bus_stops, REF_ROADSTOPS, 6, SL_MAX_VERSION),
SLE_CONDREF(Station, truck_stops, REF_ROADSTOPS, 6, SL_MAX_VERSION),
/* Used by newstations for graphic variations */
SLE_CONDVAR(Station, random_bits, SLE_UINT16, 27, SL_MAX_VERSION),
SLE_CONDVAR(Station, waiting_triggers, SLE_UINT8, 27, SL_MAX_VERSION),
SLE_CONDVAR(Station, num_specs, SLE_UINT8, 27, SL_MAX_VERSION),
// reserve extra space in savegame here. (currently 32 bytes)
SLE_CONDNULL(32, 2, SL_MAX_VERSION),
SLE_END()
};
static const SaveLoad _goods_desc[] = {
SLE_VAR(GoodsEntry, waiting_acceptance, SLE_UINT16),
SLE_VAR(GoodsEntry, days_since_pickup, SLE_UINT8),
SLE_VAR(GoodsEntry, rating, SLE_UINT8),
SLE_CONDVAR(GoodsEntry, enroute_from, SLE_FILE_U8 | SLE_VAR_U16, 0, 6),
SLE_CONDVAR(GoodsEntry, enroute_from, SLE_UINT16, 7, SL_MAX_VERSION),
SLE_VAR(GoodsEntry, enroute_time, SLE_UINT8),
SLE_VAR(GoodsEntry, last_speed, SLE_UINT8),
SLE_VAR(GoodsEntry, last_age, SLE_UINT8),
SLE_CONDVAR(GoodsEntry, feeder_profit, SLE_INT32, 14, SL_MAX_VERSION),
SLE_END()
};
static const SaveLoad _station_speclist_desc[] = {
SLE_CONDVAR(StationSpecList, grfid, SLE_UINT32, 27, SL_MAX_VERSION),
SLE_CONDVAR(StationSpecList, localidx, SLE_UINT8, 27, SL_MAX_VERSION),
SLE_END()
};
static void SaveLoad_STNS(Station *st)
{
uint i;
SlObject(st, _station_desc);
for (i = 0; i != NUM_CARGO; i++) {
SlObject(&st->goods[i], _goods_desc);
/* In older versions, enroute_from had 0xFF as INVALID_STATION, is now 0xFFFF */
if (CheckSavegameVersion(7) && st->goods[i].enroute_from == 0xFF) {
st->goods[i].enroute_from = INVALID_STATION;
}
}
if (st->num_specs != 0) {
/* Allocate speclist memory when loading a game */
if (st->speclist == NULL) st->speclist = calloc(st->num_specs, sizeof(*st->speclist));
for (i = 0; i < st->num_specs; i++) SlObject(&st->speclist[i], _station_speclist_desc);
}
}
static void Save_STNS(void)
{
Station *st;
// Write the stations
FOR_ALL_STATIONS(st) {
SlSetArrayIndex(st->index);
SlAutolength((AutolengthProc*)SaveLoad_STNS, st);
}
}
static void Load_STNS(void)
{
int index;
while ((index = SlIterateArray()) != -1) {
Station *st;
if (!AddBlockIfNeeded(&_Station_pool, index))
error("Stations: failed loading savegame: too many stations");
st = GetStation(index);
SaveLoad_STNS(st);
// this means it's an oldstyle savegame without support for nonuniform stations
if (st->train_tile != 0 && st->trainst_h == 0) {
uint w = GB(st->trainst_w, 4, 4);
uint h = GB(st->trainst_w, 0, 4);
if (GetRailStationAxis(st->train_tile) == AXIS_Y) uintswap(w, h);
st->trainst_w = w;
st->trainst_h = h;
}
/* In older versions, we had just 1 tile for a bus/lorry, now we have more..
* convert, if needed */
if (CheckSavegameVersion(6)) {
if (st->bus_tile_obsolete != 0) {
st->bus_stops = AllocateRoadStop();
if (st->bus_stops == NULL)
error("Station: too many busstations in savegame");
InitializeRoadStop(st->bus_stops, NULL, st->bus_tile_obsolete, st->index);
}
if (st->lorry_tile_obsolete != 0) {
st->truck_stops = AllocateRoadStop();
if (st->truck_stops == NULL)
error("Station: too many truckstations in savegame");
InitializeRoadStop(st->truck_stops, NULL, st->lorry_tile_obsolete, st->index);
}
}
}
/* This is to ensure all pointers are within the limits of _stations_size */
if (_station_tick_ctr > GetMaxStationIndex()) _station_tick_ctr = 0;
}
static void Save_ROADSTOP(void)
{
RoadStop *rs;
FOR_ALL_ROADSTOPS(rs) {
SlSetArrayIndex(rs->index);
SlObject(rs, _roadstop_desc);
}
}
static void Load_ROADSTOP(void)
{
int index;
Vehicle *v;
while ((index = SlIterateArray()) != -1) {
RoadStop *rs;
if (!AddBlockIfNeeded(&_RoadStop_pool, index))
error("RoadStops: failed loading savegame: too many RoadStops");
rs = GetRoadStop(index);
SlObject(rs, _roadstop_desc);
}
FOR_ALL_VEHICLES(v) {
if (v->type == VEH_Road && v->u.road.slot != NULL) v->u.road.slot->num_vehicles++;
}
}
const ChunkHandler _station_chunk_handlers[] = {
{ 'STNS', Save_STNS, Load_STNS, CH_ARRAY },
{ 'ROAD', Save_ROADSTOP, Load_ROADSTOP, CH_ARRAY | CH_LAST},
};
static inline bool PtInRectXY(Rect *r, int x, int y)
{
return (r->left <= x && x <= r->right && r->top <= y && y <= r->bottom);
}
static void StationRect_Init(Station *st)
{
Rect *r = &st->rect;
r->left = r->top = r->right = r->bottom = 0;
}
static bool StationRect_IsEmpty(Station *st)
{
return (st->rect.left == 0 || st->rect.left > st->rect.right || st->rect.top > st->rect.bottom);
}
static bool StationRect_BeforeAddTile(Station *st, TileIndex tile, StationRectMode mode)
{
Rect *r = &st->rect;
int x = TileX(tile);
int y = TileY(tile);
if (StationRect_IsEmpty(st)) {
// we are adding the first station tile
r->left = r->right = x;
r->top = r->bottom = y;
} else if (!PtInRectXY(r, x, y)) {
// current rect is not empty and new point is outside this rect
// make new spread-out rectangle
Rect new_rect = {min(x, r->left), min(y, r->top), max(x, r->right), max(y, r->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 != RECT_MODE_FORCE && (w > _patches.station_spread || h > _patches.station_spread)) {
assert(mode != RECT_MODE_TRY);
_error_message = STR_306C_STATION_TOO_SPREAD_OUT;
return false;
}
// spread-out ok, return true
if (mode != RECT_MODE_TEST) {
// we should update the station rect
*r = new_rect;
}
} else {
; // new point is inside the rect, we don't need to do anything
}
return true;
}
static bool StationRect_BeforeAddRect(Station *st, TileIndex tile, int w, int h, StationRectMode mode)
{
return StationRect_BeforeAddTile(st, tile, mode) && StationRect_BeforeAddTile(st, TILE_ADDXY(tile, w - 1, h - 1), mode);
}
static inline bool ScanRectForStationTiles(StationID st_id, int left, int top, int right, int bottom)
{
TileIndex top_left = TileXY(left, top);
int width = right - left + 1;
int height = bottom - top + 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;
}
static bool StationRect_AfterRemoveTile(Station *st, TileIndex tile)
{
Rect *r = &st->rect;
int x = TileX(tile);
int y = TileY(tile);
bool reduce_x, reduce_y;
// 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 == r->left);
bool right_edge = (x == r->right);
bool top_edge = (y == r->top);
bool bottom_edge = (y == r->bottom);
// can we reduce the rect in either direction?
reduce_x = ((left_edge || right_edge) && !ScanRectForStationTiles(st->index, x, r->top, x, r->bottom));
reduce_y = ((top_edge || bottom_edge) && !ScanRectForStationTiles(st->index, r->left, y, r->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
r->left = x = x + 1;
} else {
// move right edge left
r->right = x = x - 1;
}
}
if (reduce_y) {
// reduce vertically
if (top_edge) {
// move top edge down
r->top = y = y + 1;
} else {
// move bottom edge up
r->bottom = y = y - 1;
}
}
if (r->left > r->right || r->top > r->bottom) {
// can't continue, if the remaining rectangle is empty
StationRect_Init(st);
return true; // empty remaining rect
}
}
return false; // non-empty remaining rect
}
static bool StationRect_AfterRemoveRect(Station *st, TileIndex tile, int w, int h)
{
bool empty;
assert(PtInRectXY(&st->rect, TileX(tile), TileY(tile)));
assert(PtInRectXY(&st->rect, TileX(tile) + w - 1, TileY(tile) + h - 1));
empty = StationRect_AfterRemoveTile(st, tile);
if (w != 1 || h != 1) empty = empty || StationRect_AfterRemoveTile(st, TILE_ADDXY(tile, w - 1, h - 1));
return empty;
}
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