1

/* $Id$ */

     2

     3

/** @file station_cmd.c */

     4

     5

#include "stdafx.h"

     6

#include "openttd.h"

     7

#include "debug.h"

     8

#include "functions.h"

     9

#include "station_map.h"

    10

#include "table/sprites.h"

    11

#include "table/strings.h"

    12

#include "map.h"

    13

#include "tile.h"

    14

#include "station.h"

    15

#include "gfx.h"

    16

#include "window.h"

    17

#include "viewport.h"

    18

#include "command.h"

    19

#include "town.h"

    20

#include "vehicle.h"

    21

#include "news.h"

    22

#include "saveload.h"

    23

#include "economy.h"

    24

#include "player.h"

    25

#include "airport.h"

    26

#include "sprite.h"

    27

#include "depot.h"

    28

#include "train.h"

    29

#include "water_map.h"

    30

#include "industry_map.h"

    31

#include "newgrf_callbacks.h"

    32

#include "newgrf_station.h"

    33

#include "yapf/yapf.h"

    34

#include "date.h"

    35

    36

/**

    37

 * Called if a new block is added to the station-pool

    38

 */

    39

static void StationPoolNewBlock(uint start_item)

    40

{

    41

	Station *st;

    42

    43

	/* We don't use FOR_ALL here, because FOR_ALL skips invalid items.

    44

	 *  TODO - This is just a temporary stage, this will be removed. */

    45

	for (st = GetStation(start_item); st != NULL; st = (st->index + 1U < GetStationPoolSize()) ? GetStation(st->index + 1U) : NULL) st->index = start_item++;

    46

}

    47

    48

static void StationPoolCleanBlock(uint start_item, uint end_item)

    49

{

    50

	uint i;

    51

    52

	for (i = start_item; i <= end_item; i++) {

    53

		Station *st = GetStation(i);

    54

		free(st->speclist);

    55

		st->speclist = NULL;

    56

	}

    57

}

    58

    59

/**

    60

 * Called if a new block is added to the roadstop-pool

    61

 */

    62

static void RoadStopPoolNewBlock(uint start_item)

    63

{

    64

	RoadStop *rs;

    65

    66

	/* We don't use FOR_ALL here, because FOR_ALL skips invalid items.

    67

	 * TODO - This is just a temporary stage, this will be removed. */

    68

	for (rs = GetRoadStop(start_item); rs != NULL; rs = (rs->index + 1U < GetRoadStopPoolSize()) ? GetRoadStop(rs->index + 1U) : NULL) rs->index = start_item++;

    69

}

    70

    71

DEFINE_OLD_POOL(Station, Station, StationPoolNewBlock, StationPoolCleanBlock)

    72

DEFINE_OLD_POOL(RoadStop, RoadStop, RoadStopPoolNewBlock, NULL)

    73

    74

    75

extern void UpdateAirplanesOnNewStation(Station *st);

    76

    77

static bool TileBelongsToRailStation(const Station *st, TileIndex tile)

    78

{

    79

	return IsTileType(tile, MP_STATION) && GetStationIndex(tile) == st->index && IsRailwayStation(tile);

    80

}

    81

    83

{

    84

	TileIndex tile = st->train_tile;

    85

	int w, h;

    86

    87

	// XXX No station is recorded as 0, not INVALID_TILE...

    88

	if (tile == 0) return;

    89

    90

	for (h = 0; h < st->trainst_h; h++) {

    91

		for (w = 0; w < st->trainst_w; w++) {

    92

			if (TileBelongsToRailStation(st, tile)) {

    93

				MarkTileDirtyByTile(tile);

    94

			}

    95

			tile += TileDiffXY(1, 0);

    96

		}

    97

		tile += TileDiffXY(-w, 1);

    98

	}

    99

}

   100

   101

static void MarkStationDirty(const Station* st)

   102

{

   103

	if (st->sign.width_1 != 0) {

   104

		InvalidateWindowWidget(WC_STATION_VIEW, st->index, 1);

   105

   106

		MarkAllViewportsDirty(

   107

			st->sign.left - 6,

   108

			st->sign.top,

   109

			st->sign.left + (st->sign.width_1 << 2) + 12,

   110

			st->sign.top + 48);

   111

	}

   112

}

   113

   114

static void InitializeRoadStop(RoadStop *road_stop, RoadStop *previous, TileIndex tile, StationID index)

   115

{

   116

	road_stop->xy = tile;

   117

	road_stop->used = true;

   118

	road_stop->status = 3; //stop is free

   119

	road_stop->next = NULL;

   120

	road_stop->prev = previous;

   121

	road_stop->station = index;

   122

	road_stop->num_vehicles = 0;

   123

}

   124

   125

RoadStop* GetPrimaryRoadStop(const Station* st, RoadStopType type)

   126

{

   127

	switch (type) {

   128

		case RS_BUS:   return st->bus_stops;

   129

		case RS_TRUCK: return st->truck_stops;

   130

		default: NOT_REACHED();

   131

	}

   132

   133

	return NULL;

   134

}

   135

   136

RoadStop* GetRoadStopByTile(TileIndex tile, RoadStopType type)

   137

{

   138

	const Station* st = GetStationByTile(tile);

   139

	RoadStop* rs;

   140

   141

	for (rs = GetPrimaryRoadStop(st, type); rs->xy != tile; rs = rs->next) {

   142

		assert(rs->next != NULL);

   143

	}

   144

   145

	return rs;

   146

}

   147

   148

uint GetNumRoadStopsInStation(const Station* st, RoadStopType type)

   149

{

   150

	uint num = 0;

   151

	const RoadStop *rs;

   152

   153

	assert(st != NULL);

   154

	for (rs = GetPrimaryRoadStop(st, type); rs != NULL; rs = rs->next) num++;

   155

   156

	return num;

   157

}

   158

   159

RoadStop *AllocateRoadStop(void)

   160

{

   161

	RoadStop *rs;

   162

   163

	/* We don't use FOR_ALL here, because FOR_ALL skips invalid items.

   164

	 * TODO - This is just a temporary stage, this will be removed. */

   165

	for (rs = GetRoadStop(0); rs != NULL; rs = (rs->index + 1U < GetRoadStopPoolSize()) ? GetRoadStop(rs->index + 1U) : NULL) {

   166

		if (!IsValidRoadStop(rs)) {

   167

			RoadStopID index = rs->index;

   168

   169

			memset(rs, 0, sizeof(*rs));

   170

			rs->index = index;

   171

   172

			return rs;

   173

		}

   174

	}

   175

   176

	/* Check if we can add a block to the pool */

   177

	if (AddBlockToPool(&_RoadStop_pool)) return AllocateRoadStop();

   178

   179

	return NULL;

   180

}

   181

   182

/* Calculate the radius of the station. Basicly it is the biggest

   183

 *  radius that is available within the station */

   184

static uint FindCatchmentRadius(const Station* st)

   185

{

   186

	uint ret = 0;

   187

   188

	if (st->bus_stops != NULL)   ret = max(ret, CA_BUS);

   189

	if (st->truck_stops != NULL) ret = max(ret, CA_TRUCK);

   190

	if (st->train_tile) ret = max(ret, CA_TRAIN);

   191

	if (st->dock_tile)  ret = max(ret, CA_DOCK);

   192

   193

	if (st->airport_tile) {

   194

		switch (st->airport_type) {

   195

			case AT_OILRIG:        ret = max(ret, CA_AIR_OILPAD);   break;

   196

			case AT_SMALL:         ret = max(ret, CA_AIR_SMALL);    break;

   197

			case AT_HELIPORT:      ret = max(ret, CA_AIR_HELIPORT); break;

   198

			case AT_LARGE:         ret = max(ret, CA_AIR_LARGE);    break;

   199

			case AT_METROPOLITAN:  ret = max(ret, CA_AIR_METRO);    break;

   200

			case AT_INTERNATIONAL: ret = max(ret, CA_AIR_INTER);    break;

   201

			case AT_COMMUTER:      ret = max(ret, CA_AIR_COMMUTER); break;

   202

			case AT_HELIDEPOT:     ret = max(ret, CA_AIR_HELIDEPOT); break;

   203

			case AT_INTERCON:      ret = max(ret, CA_AIR_INTERCON); break;

   204

			case AT_HELISTATION:   ret = max(ret, CA_AIR_HELISTATION); break;

   205

		}

   206

	}

   207

   208

	return ret;

   209

}

   210

   211

#define CHECK_STATIONS_ERR ((Station*)-1)

   212

   213

static Station* GetStationAround(TileIndex tile, int w, int h, StationID closest_station)

   214

{

   215

	// check around to see if there's any stations there

   216

	BEGIN_TILE_LOOP(tile_cur, w + 2, h + 2, tile - TileDiffXY(1, 1))

   217

		if (IsTileType(tile_cur, MP_STATION)) {

   218

			StationID t = GetStationIndex(tile_cur);

   219

			{

   220

				Station *st = GetStation(t);

   221

				// you cannot take control of an oilrig!!

   222

				if (st->airport_type == AT_OILRIG && st->facilities == (FACIL_AIRPORT|FACIL_DOCK))

   223

					continue;

   224

			}

   225

   226

			if (closest_station == INVALID_STATION) {

   227

				closest_station = t;

   228

			} else if (closest_station != t) {

   229

				_error_message = STR_3006_ADJOINS_MORE_THAN_ONE_EXISTING;

   230

				return CHECK_STATIONS_ERR;

   231

			}

   232

		}

   233

	END_TILE_LOOP(tile_cur, w + 2, h + 2, tile - TileDiffXY(1, 1))

   234

	return (closest_station == INVALID_STATION) ? NULL : GetStation(closest_station);

   235

}

   236

   237

static Station *AllocateStation(void)

   238

{

   239

	Station *st = NULL;

   240

   241

	/* We don't use FOR_ALL here, because FOR_ALL skips invalid items.

   242

	 * TODO - This is just a temporary stage, this will be removed. */

   243

	for (st = GetStation(0); st != NULL; st = (st->index + 1U < GetStationPoolSize()) ? GetStation(st->index + 1U) : NULL) {

   244

		if (!IsValidStation(st)) {

   245

			StationID index = st->index;

   246

   247

			memset(st, 0, sizeof(Station));

   248

			st->index = index;

   249

   250

			return st;

   251

		}

   252

	}

   253

   254

	/* Check if we can add a block to the pool */

   255

	if (AddBlockToPool(&_Station_pool)) return AllocateStation();

   256

   257

	_error_message = STR_3008_TOO_MANY_STATIONS_LOADING;

   258

	return NULL;

   259

}

   260

   261

   262

/**

   263

 * Counts the numbers of tiles matching a specific type in the area around

   264

 * @param tile the center tile of the 'count area'

   265

 * @param type the type of tile searched for

   266

 * @param industry when type == MP_INDUSTRY, the type of the industry,

   267

 *                 in all other cases this parameter is ignored

   268

 * @result the noumber of matching tiles around

   269

 */

   270

static int CountMapSquareAround(TileIndex tile, TileType type, IndustryType industry)

   271

{

   272

	TileIndex cur_tile;

   273

	int dx, dy;

   274

	int num = 0;

   275

   276

	for (dx = -3; dx <= 3; dx++) {

   277

		for (dy = -3; dy <= 3; dy++) {

   278

			cur_tile = TILE_MASK(tile + TileDiffXY(dx, dy));

   279

   280

			if (IsTileType(cur_tile, type)) {

   281

				switch (type) {

   282

					case MP_INDUSTRY:

   283

						if (GetIndustryType(cur_tile) == industry)

   284

							num++;

   285

						break;

   286

   287

					case MP_WATER:

   288

						if (!IsWater(cur_tile))

   289

							break;

   290

						/* FALL THROUGH WHEN WATER TILE */

   291

					case MP_TREES:

   292

						num++;

   293

						break;

   294

   295

					default:

   296

						break;

   297

				}

   298

			}

   299

		}

   300

	}

   301

   302

	return num;

   303

}

   304

   305

#define M(x) ((x) - STR_SV_STNAME)

   306

   307

static bool GenerateStationName(Station *st, TileIndex tile, int flag)

   308

{

   309

	static const uint32 _gen_station_name_bits[] = {

   310

		0,                                      /* 0 */

   311

		1 << M(STR_SV_STNAME_AIRPORT),          /* 1 */

   312

		1 << M(STR_SV_STNAME_OILFIELD),         /* 2 */

   313

		1 << M(STR_SV_STNAME_DOCKS),            /* 3 */

   314

		0x1FF << M(STR_SV_STNAME_BUOY_1),       /* 4 */

   315

		1 << M(STR_SV_STNAME_HELIPORT),         /* 5 */

   316

	};

   317

   318

	Town *t = st->town;

   319

	uint32 free_names = (uint32)-1;

   320

	int found;

   321

	uint z,z2;

   322

	unsigned long tmp;

   323

   324

	{

   325

		Station *s;

   326

   327

		FOR_ALL_STATIONS(s) {

   328

			if (s != st && s->town==t) {

   329

				uint str = M(s->string_id);

   330

				if (str <= 0x20) {

   331

					if (str == M(STR_SV_STNAME_FOREST))

   332

						str = M(STR_SV_STNAME_WOODS);

   333

					CLRBIT(free_names, str);

   334

				}

   335

			}

   336

		}

   337

	}

   338

   339

	/* check default names */

   340

	tmp = free_names & _gen_station_name_bits[flag];

   341

	if (tmp != 0) {

   342

		found = FindFirstBit(tmp);

   343

		goto done;

   344

	}

   345

   346

	/* check mine? */

   347

	if (HASBIT(free_names, M(STR_SV_STNAME_MINES))) {

   348

		if (CountMapSquareAround(tile, MP_INDUSTRY, IT_COAL_MINE) >= 2 ||

   349

				CountMapSquareAround(tile, MP_INDUSTRY, IT_IRON_MINE) >= 2 ||

   350

				CountMapSquareAround(tile, MP_INDUSTRY, IT_COPPER_MINE) >= 2 ||

   351

				CountMapSquareAround(tile, MP_INDUSTRY, IT_GOLD_MINE) >= 2 ||

   352

				CountMapSquareAround(tile, MP_INDUSTRY, IT_DIAMOND_MINE) >= 2) {

   353

			found = M(STR_SV_STNAME_MINES);

   354

			goto done;

   355

		}

   356

	}

   357

   358

	/* check close enough to town to get central as name? */

   359

	if (DistanceMax(tile,t->xy) < 8) {

   360

		found = M(STR_SV_STNAME);

   361

		if (HASBIT(free_names, M(STR_SV_STNAME))) goto done;

   362

   363

		found = M(STR_SV_STNAME_CENTRAL);

   364

		if (HASBIT(free_names, M(STR_SV_STNAME_CENTRAL))) goto done;

   365

	}

   366

   367

	/* Check lakeside */

   368

	if (HASBIT(free_names, M(STR_SV_STNAME_LAKESIDE)) &&

   369

			DistanceFromEdge(tile) < 20 &&

   370

			CountMapSquareAround(tile, MP_WATER, 0) >= 5) {

   371

		found = M(STR_SV_STNAME_LAKESIDE);

   372

		goto done;

   373

	}

   374

   375

	/* Check woods */

   376

	if (HASBIT(free_names, M(STR_SV_STNAME_WOODS)) && (

   377

				CountMapSquareAround(tile, MP_TREES, 0) >= 8 ||

   378

				CountMapSquareAround(tile, MP_INDUSTRY, IT_FOREST) >= 2)

   379

			) {

   380

		found = _opt.landscape == LT_DESERT ?

   381

			M(STR_SV_STNAME_FOREST) : M(STR_SV_STNAME_WOODS);

   382

		goto done;

   383

	}

   384

   385

	/* check elevation compared to town */

   386

	z = GetTileZ(tile);

   387

	z2 = GetTileZ(t->xy);

   388

	if (z < z2) {

   389

		found = M(STR_SV_STNAME_VALLEY);

   390

		if (HASBIT(free_names, M(STR_SV_STNAME_VALLEY))) goto done;

   391

	} else if (z > z2) {

   392

		found = M(STR_SV_STNAME_HEIGHTS);

   393

		if (HASBIT(free_names, M(STR_SV_STNAME_HEIGHTS))) goto done;

   394

	}

   395

   396

	/* check direction compared to town */

   397

	{

   398

		static const int8 _direction_and_table[] = {

   399

			~( (1<<M(STR_SV_STNAME_WEST)) | (1<<M(STR_SV_STNAME_EAST)) | (1<<M(STR_SV_STNAME_NORTH)) ),

   400

			~( (1<<M(STR_SV_STNAME_SOUTH)) | (1<<M(STR_SV_STNAME_WEST)) | (1<<M(STR_SV_STNAME_NORTH)) ),

   401

			~( (1<<M(STR_SV_STNAME_SOUTH)) | (1<<M(STR_SV_STNAME_EAST)) | (1<<M(STR_SV_STNAME_NORTH)) ),

   402

			~( (1<<M(STR_SV_STNAME_SOUTH)) | (1<<M(STR_SV_STNAME_WEST)) | (1<<M(STR_SV_STNAME_EAST)) ),

   403

		};

   404

   405

		free_names &= _direction_and_table[

   406

			(TileX(tile) < TileX(t->xy)) +

   407

			(TileY(tile) < TileY(t->xy)) * 2];

   408

	}

   409

   410

	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));

   411

	if (tmp == 0) {

   412

		_error_message = STR_3007_TOO_MANY_STATIONS_LOADING;

   413

		return false;

   414

	}

   415

	found = FindFirstBit(tmp);

   416

   417

done:

   418

	st->string_id = found + STR_SV_STNAME;

   419

	return true;

   420

}

   421

#undef M

   422

   423

static Station* GetClosestStationFromTile(TileIndex tile, uint threshold, PlayerID owner)

   424

{

   425

	Station* best_station = NULL;

   426

	Station* st;

   427

   428

	FOR_ALL_STATIONS(st) {

   429

		if ((owner == PLAYER_SPECTATOR || st->owner == owner)) {

   430

			uint cur_dist = DistanceManhattan(tile, st->xy);

   431

   432

			if (cur_dist < threshold) {

   433

				threshold = cur_dist;

   434

				best_station = st;

   435

			}

   436

		}

   437

	}

   438

   439

	return best_station;

   440

}

   441

   442

static void StationInitialize(Station *st, TileIndex tile)

   443

{

   444

	GoodsEntry *ge;

   445

   446

	st->xy = tile;

   447

	st->airport_tile = st->dock_tile = st->train_tile = 0;

   448

	st->bus_stops = st->truck_stops = NULL;

   449

	st->had_vehicle_of_type = 0;

   450

	st->time_since_load = 255;

   451

	st->time_since_unload = 255;

   452

	st->delete_ctr = 0;

   453

	st->facilities = 0;

   454

   455

	st->last_vehicle_type = VEH_Invalid;

   456

   457

	for (ge = st->goods; ge != endof(st->goods); ge++) {

   458

		ge->waiting_acceptance = 0;

   459

		ge->days_since_pickup = 0;

   460

		ge->enroute_from = INVALID_STATION;

   461

		ge->rating = 175;

   462

		ge->last_speed = 0;

   463

		ge->last_age = 0xFF;

   464

		ge->feeder_profit = 0;

   465

	}

   466

   467

	st->random_bits = Random();

   468

	st->waiting_triggers = 0;

   469

   470

}

   471

   472

// Update the virtual coords needed to draw the station sign.

   473

// st = Station to update for.

   474

static void UpdateStationVirtCoord(Station *st)

   475

{

   476

	Point pt = RemapCoords2(TileX(st->xy) * TILE_SIZE, TileY(st->xy) * TILE_SIZE);

   477

   478

	pt.y -= 32;

   479

	if (st->facilities & FACIL_AIRPORT && st->airport_type == AT_OILRIG) pt.y -= 16;

   480

   481

	SetDParam(0, st->index);

   482

	SetDParam(1, st->facilities);

   483

	UpdateViewportSignPos(&st->sign, pt.x, pt.y, STR_305C_0);

   484

}

   485

   486

// Update the virtual coords needed to draw the station sign for all stations.

   487

void UpdateAllStationVirtCoord(void)

   488

{

   489

	Station* st;

   490

   491

	FOR_ALL_STATIONS(st) {

   492

		UpdateStationVirtCoord(st);

   493

	}

   494

}

   495

   496

// Update the station virt coords while making the modified parts dirty.