1

/* $Id$ */

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     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

enum {

    37

	/* Max stations: 64000 (64 * 1000) */

    38

	STATION_POOL_BLOCK_SIZE_BITS = 6,       /* In bits, so (1 << 6) == 64 */

    39

	STATION_POOL_MAX_BLOCKS      = 1000,

    40

    41

	/* Max roadstops: 64000 (32 * 2000) */

    42

	ROADSTOP_POOL_BLOCK_SIZE_BITS = 5,       /* In bits, so (1 << 5) == 32 */

    43

	ROADSTOP_POOL_MAX_BLOCKS      = 2000,

    44

};

    45

    46

/**

    47

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

    48

 */

    49

static void StationPoolNewBlock(uint start_item)

    50

{

    51

	Station *st;

    52

    53

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

    54

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

    55

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

    56

}

    57

    58

static void StationPoolCleanBlock(uint start_item, uint end_item)

    59

{

    60

	uint i;

    61

    62

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

    63

		Station *st = GetStation(i);

    64

		free(st->speclist);

    65

		st->speclist = NULL;

    66

	}

    67

}

    68

    69

/**

    70

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

    71

 */

    72

static void RoadStopPoolNewBlock(uint start_item)

    73

{

    74

	RoadStop *rs;

    75

    76

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

    77

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

    78

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

    79

}

    80

    81

/* Initialize the station-pool and roadstop-pool */

    82

MemoryPool _station_pool = { "Stations", STATION_POOL_MAX_BLOCKS, STATION_POOL_BLOCK_SIZE_BITS, sizeof(Station), &StationPoolNewBlock, &StationPoolCleanBlock, 0, 0, NULL };

    83

MemoryPool _roadstop_pool = { "RoadStop", ROADSTOP_POOL_MAX_BLOCKS, ROADSTOP_POOL_BLOCK_SIZE_BITS, sizeof(RoadStop), &RoadStopPoolNewBlock, NULL, 0, 0, NULL };

    84

    85

    86

void ShowAircraftDepotWindow(TileIndex tile);

    87

extern void UpdateAirplanesOnNewStation(Station *st);

    88

    89

static void MarkStationDirty(const Station* st)

    90

{

    91

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

    92

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

    93

    94

		MarkAllViewportsDirty(

    95

			st->sign.left - 6,

    96

			st->sign.top,

    97

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

    98

			st->sign.top + 48);

    99

	}

   100

}

   101

   102

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

   103

{

   104

	road_stop->xy = tile;

   105

	road_stop->used = true;

   106

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

   107

	road_stop->next = NULL;

   108

	road_stop->prev = previous;

   109

	road_stop->station = index;

   110

	road_stop->num_vehicles = 0;

   111

}

   112

   113

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

   114

{

   115

	switch (type) {

   116

		case RS_BUS:   return st->bus_stops;

   117

		case RS_TRUCK: return st->truck_stops;

   118

		default: NOT_REACHED();

   119

	}

   120

   121

	return NULL;

   122

}

   123

   124

RoadStop* GetRoadStopByTile(TileIndex tile, RoadStopType type)

   125

{

   126

	const Station* st = GetStationByTile(tile);

   127

	RoadStop* rs;

   128

   129

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

   130

		assert(rs->next != NULL);

   131

	}

   132

   133

	return rs;

   134

}

   135

   136

uint GetNumRoadStopsInStation(const Station* st, RoadStopType type)

   137

{

   138

	uint num = 0;

   139

	const RoadStop *rs;

   140

   141

	assert(st != NULL);

   142

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

   143

   144

	return num;

   145

}

   146

   147

RoadStop *AllocateRoadStop(void)

   148

{

   149

	RoadStop *rs;

   150

   151

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

   152

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

   153

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

   154

		if (!IsValidRoadStop(rs)) {

   155

			RoadStopID index = rs->index;

   156

   157

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

   158

			rs->index = index;

   159

   160

			return rs;

   161

		}

   162

	}

   163

   164

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

   165

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

   166

   167

	return NULL;

   168

}

   169

   170

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

   172

static uint FindCatchmentRadius(const Station* st)

   173

{

   174

	uint ret = 0;

   175

   176

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

   177

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

   178

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

   179

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

   180

   181

	if (st->airport_tile) {

   182

		switch (st->airport_type) {

   183

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

   184

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

   185

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

   186

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

   187

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

   188

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

   189

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

   190

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

   191

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

   192

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

   193

		}

   194

	}

   195

   196

	return ret;

   197

}

   198

   199

#define CHECK_STATIONS_ERR ((Station*)-1)

   200

   201

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

   202

{

   203

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

   204

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

   205

		if (IsTileType(tile_cur, MP_STATION)) {

   206

			StationID t = GetStationIndex(tile_cur);

   207

			{

   208

				Station *st = GetStation(t);

   209

				// you cannot take control of an oilrig!!

   210

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

   211

					continue;

   212

			}

   213

   214

			if (closest_station == INVALID_STATION) {

   215

				closest_station = t;

   216

			} else if (closest_station != t) {

   217

				_error_message = STR_3006_ADJOINS_MORE_THAN_ONE_EXISTING;

   218

				return CHECK_STATIONS_ERR;

   219

			}

   220

		}

   221

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

   222

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

   223

}

   224

   225

   226

static bool CheckStationSpreadOut(Station *st, TileIndex tile, int w, int h)

   227

{

   228

	StationID station_index = st->index;

   229

	uint i;

   230

	uint x1 = TileX(tile);

   231

	uint y1 = TileY(tile);

   232

	uint x2 = x1 + w - 1;

   233

	uint y2 = y1 + h - 1;

   234

	uint t;

   235

   236

	for (i = 0; i != MapSize(); i++) {

   237

		if (IsTileType(i, MP_STATION) && GetStationIndex(i) == station_index) {

   238

			t = TileX(i);

   239

			if (t < x1) x1 = t;

   240

			if (t > x2) x2 = t;

   241

   242

			t = TileY(i);

   243

			if (t < y1) y1 = t;

   244

			if (t > y2) y2 = t;

   245

		}

   246

	}

   247

   248

	if (y2 - y1 >= _patches.station_spread || x2 - x1 >= _patches.station_spread) {

   249

		_error_message = STR_306C_STATION_TOO_SPREAD_OUT;

   250

		return false;

   251

	}

   252

   253

	return true;

   254

}

   255

   256

static Station *AllocateStation(void)

   257

{

   258

	Station *st = NULL;

   259

   260

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

   261

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

   262

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

   263

		if (!IsValidStation(st)) {

   264

			StationID index = st->index;

   265

   266

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

   267

			st->index = index;

   268

   269

			return st;

   270

		}

   271

	}

   272

   273

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

   274

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

   275

   276

	_error_message = STR_3008_TOO_MANY_STATIONS_LOADING;

   277

	return NULL;

   278

}

   279

   280

   281

/**

   282

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

   283

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

   284

 * @param type the type of tile searched for

   285

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

   286

 *                 in all other cases this parameter is ignored

   287

 * @result the noumber of matching tiles around

   288

 */

   289

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

   290

{

   291

	TileIndex cur_tile;

   292

	int dx, dy;

   293

	int num = 0;

   294

   295

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

   296

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

   297

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

   298

   299

			if (IsTileType(cur_tile, type)) {

   300

				switch (type) {

   301

					case MP_INDUSTRY:

   302

						if (GetIndustryType(cur_tile) == industry)

   303

							num++;

   304

						break;

   305

   306

					case MP_WATER:

   307

						if (!IsWater(cur_tile))

   308

							break;

   309

						/* FALL THROUGH WHEN WATER TILE */

   310

					case MP_TREES:

   311

						num++;

   312

						break;

   313

   314

					default:

   315

						break;

   316

				}

   317

			}

   318

		}

   319

	}

   320

   321

	return num;

   322

}

   323

   324

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

   325

   326

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

   327

{

   328

	static const uint32 _gen_station_name_bits[] = {

   329

		0,                                      /* 0 */

   330

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

   331

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

   332

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

   333

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

   334

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

   335

	};

   336

   337

	Town *t = st->town;

   338

	uint32 free_names = (uint32)-1;

   339

	int found;

   340

	uint z,z2;

   341

	unsigned long tmp;

   342

   343

	{

   344

		Station *s;

   345

   346

		FOR_ALL_STATIONS(s) {

   347

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

   348

				uint str = M(s->string_id);

   349

				if (str <= 0x20) {

   350

					if (str == M(STR_SV_STNAME_FOREST))

   351

						str = M(STR_SV_STNAME_WOODS);

   352

					CLRBIT(free_names, str);

   353

				}

   354

			}

   355

		}

   356

	}

   357

   358

	/* check default names */

   359

	tmp = free_names & _gen_station_name_bits[flag];

   360

	if (tmp != 0) {

   361

		found = FindFirstBit(tmp);

   362

		goto done;

   363

	}

   364

   365

	/* check mine? */

   366

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

   367

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

   368

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

   369

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

   370

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

   371

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

   372

			found = M(STR_SV_STNAME_MINES);

   373

			goto done;

   374

		}

   375

	}

   376

   377

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

   378

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

   379

		found = M(STR_SV_STNAME);

   380

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

   381

   382

		found = M(STR_SV_STNAME_CENTRAL);

   383

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

   384

	}

   385

   386

	/* Check lakeside */

   387

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

   388

			DistanceFromEdge(tile) < 20 &&

   389

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

   390

		found = M(STR_SV_STNAME_LAKESIDE);

   391

		goto done;

   392

	}

   393

   394

	/* Check woods */

   395

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

   396

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

   397

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

   398

			) {

   399

		found = _opt.landscape == LT_DESERT ?

   400

			M(STR_SV_STNAME_FOREST) : M(STR_SV_STNAME_WOODS);

   401

		goto done;

   402

	}

   403

   404

	/* check elevation compared to town */

   405

	z = GetTileZ(tile);

   406

	z2 = GetTileZ(t->xy);

   407

	if (z < z2) {

   408

		found = M(STR_SV_STNAME_VALLEY);

   409

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

   410

	} else if (z > z2) {

   411

		found = M(STR_SV_STNAME_HEIGHTS);

   412

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

   413

	}

   414

   415

	/* check direction compared to town */

   416

	{

   417

		static const int8 _direction_and_table[] = {

   418

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

   419

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

   420

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

   421

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

   422

		};

   423

   424

		free_names &= _direction_and_table[

   425

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

   426

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

   427

	}

   428

   429

	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));

   430

	if (tmp == 0) {

   431

		_error_message = STR_3007_TOO_MANY_STATIONS_LOADING;

   432

		return false;

   433

	}

   434

	found = FindFirstBit(tmp);

   435

   436

done:

   437

	st->string_id = found + STR_SV_STNAME;

   438

	return true;

   439

}

   440

#undef M

   441

   442

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

   443

{

   444

	Station* best_station = NULL;

   445

	Station* st;

   446

   447

	FOR_ALL_STATIONS(st) {

   448

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

   449

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

   450

   451

			if (cur_dist < threshold) {

   452

				threshold = cur_dist;

   453

				best_station = st;

   454

			}

   455

		}

   456

	}

   457

   458

	return best_station;

   459

}

   460

   461

static void StationInitialize(Station *st, TileIndex tile)

   462

{

   463

	GoodsEntry *ge;

   464

   465

	st->xy = tile;

   466

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

   467

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

   468

	st->had_vehicle_of_type = 0;

   469

	st->time_since_load = 255;

   470

	st->time_since_unload = 255;

   471

	st->delete_ctr = 0;

   472

	st->facilities = 0;

   473

   474

	st->last_vehicle_type = VEH_Invalid;

   475

   476

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

   477

		ge->waiting_acceptance = 0;

   478

		ge->days_since_pickup = 0;

   479

		ge->enroute_from = INVALID_STATION;

   480

		ge->rating = 175;

   481

		ge->last_speed = 0;

   482

		ge->last_age = 0xFF;

   483

		ge->feeder_profit = 0;

   484

	}

   485

   486

	st->random_bits = Random();

   487

	st->waiting_triggers = 0;

   488

   489

}

   490

   491

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

   492

// st = Station to update for.

   493

static void UpdateStationVirtCoord(Station *st)

   494

{

   495

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

   496

   497

	pt.y -= 32;