1

/* $Id$ */

     2

     3

/** @file station_cmd.c

     4

  */

     5

     6

#include "stdafx.h"

     7

#include "openttd.h"

     8

#include "debug.h"

     9

#include "functions.h"

    10

#include "station_map.h"

    11

#include "table/sprites.h"

    12

#include "table/strings.h"

    13

#include "map.h"

    14

#include "tile.h"

    15

#include "station.h"

    16

#include "gfx.h"

    17

#include "window.h"

    18

#include "viewport.h"

    19

#include "command.h"

    20

#include "town.h"

    21

#include "vehicle.h"

    22

#include "news.h"

    23

#include "saveload.h"

    24

#include "economy.h"

    25

#include "player.h"

    26

#include "airport.h"

    27

#include "sprite.h"

    28

#include "depot.h"

    29

#include "train.h"

    30

#include "water_map.h"

    31

#include "industry_map.h"

    32

#include "newgrf_callbacks.h"

    33

#include "newgrf_station.h"

    34

#include "yapf/yapf.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

	FOR_ALL_STATIONS_FROM(st, start_item) st->index = start_item++;

    54

}

    55

    56

static void StationPoolCleanBlock(uint start_item, uint end_item)

    57

{

    58

	uint i;

    59

    60

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

    61

		Station *st = GetStation(i);

    62

		free(st->speclist);

    63

		st->speclist = NULL;

    64

	}

    65

}

    66

    67

/**

    68

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

    69

 */

    70

static void RoadStopPoolNewBlock(uint start_item)

    71

{

    72

	RoadStop *rs;

    73

    74

	FOR_ALL_ROADSTOPS_FROM(rs, start_item) rs->index = start_item++;

    75

}

    76

    77

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

    78

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

    79

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

    80

    81

    82

void ShowAircraftDepotWindow(TileIndex tile);

    83

extern void UpdateAirplanesOnNewStation(Station *st);

    84

    85

static void MarkStationDirty(const Station* st)

    86

{

    87

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

    88

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

    89

    90

		MarkAllViewportsDirty(

    91

			st->sign.left - 6,

    92

			st->sign.top,

    93

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

    94

			st->sign.top + 48);

    95

	}

    96

}

    97

    98

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

    99

{

   100

	road_stop->xy = tile;

   101

	road_stop->used = true;

   102

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

   103

	road_stop->next = NULL;

   104

	road_stop->prev = previous;

   105

	road_stop->station = index;

   106

	road_stop->num_vehicles = 0;

   107

}

   108

   109

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

   110

{

   111

	switch (type) {

   112

		case RS_BUS:   return st->bus_stops;

   113

		case RS_TRUCK: return st->truck_stops;

   114

		default: NOT_REACHED();

   115

	}

   116

   117

	return NULL;

   118

}

   119

   120

RoadStop* GetRoadStopByTile(TileIndex tile, RoadStopType type)

   121

{

   122

	const Station* st = GetStationByTile(tile);

   123

	RoadStop* rs;

   124

   125

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

   126

		assert(rs->next != NULL);

   127

	}

   128

   129

	return rs;

   130

}

   131

   132

uint GetNumRoadStops(const Station* st, RoadStopType type)

   133

{

   134

	uint num = 0;

   135

	const RoadStop *rs;

   136

   137

	assert(st != NULL);

   138

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

   139

   140

	return num;

   141

}

   142

   143

RoadStop *AllocateRoadStop(void)

   144

{

   145

	RoadStop *rs;

   146

   147

	FOR_ALL_ROADSTOPS(rs) {

   148

		if (!rs->used) {

   149

			uint index = rs->index;

   150

   151

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

   152

			rs->index = index;

   153

   154

			return rs;

   155

		}

   156

	}

   157

   158

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

   159

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

   160

   161

	return NULL;

   162

}

   163

   164

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

   165

    radius that is available within the station */

   166

static uint FindCatchmentRadius(const Station* st)

   167

{

   168

	uint ret = 0;

   169

   170

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

   171

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

   172

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

   173

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

   174

   175

	if (st->airport_tile) {

   176

		switch (st->airport_type) {

   177

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

   178

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

   179

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

   180

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

   181

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

   182

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

   183

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

   184

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

   185

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

   186

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

   187

		}

   188

	}

   189

   190

	return ret;

   191

}

   192

   193

#define CHECK_STATIONS_ERR ((Station*)-1)

   194

   195

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

   196

{

   197

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

   198

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

   199

		if (IsTileType(tile_cur, MP_STATION)) {

   200

			StationID t = GetStationIndex(tile_cur);

   201

			{

   202

				Station *st = GetStation(t);

   203

				// you cannot take control of an oilrig!!

   204

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

   205

					continue;

   206

			}

   207

   208

			if (closest_station == INVALID_STATION) {

   209

				closest_station = t;

   210

			} else if (closest_station != t) {

   211

				_error_message = STR_3006_ADJOINS_MORE_THAN_ONE_EXISTING;

   212

				return CHECK_STATIONS_ERR;

   213

			}

   214

		}

   215

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

   216

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

   217

}

   218

   219

   220

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

   221

{

   222

	StationID station_index = st->index;

   223

	uint i;

   224

	uint x1 = TileX(tile);

   225

	uint y1 = TileY(tile);

   226

	uint x2 = x1 + w - 1;

   227

	uint y2 = y1 + h - 1;

   228

	uint t;

   229

   230

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

   231

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

   232

			t = TileX(i);

   233

			if (t < x1) x1 = t;

   234

			if (t > x2) x2 = t;

   235

   236

			t = TileY(i);

   237

			if (t < y1) y1 = t;

   238

			if (t > y2) y2 = t;

   239

		}

   240

	}

   241

   242

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

   243

		_error_message = STR_306C_STATION_TOO_SPREAD_OUT;

   244

		return false;

   245

	}

   246

   247

	return true;

   248

}

   249

   250

static Station *AllocateStation(void)

   251

{

   252

	Station *st = NULL;

   253

   254

	FOR_ALL_STATIONS(st) {

   255

		if (st->xy == 0) {

   256

			StationID index = st->index;

   257

   258

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

   259

			st->index = index;

   260

   261

			return st;

   262

		}

   263

	}

   264

   265

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

   266

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

   267

   268

	_error_message = STR_3008_TOO_MANY_STATIONS_LOADING;

   269

	return NULL;

   270

}

   271

   272

   273

/**

   274

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

   275

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

   276

 * @param type the type of tile searched for

   277

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

   278

 *                 in all other cases this parameter is ignored

   279

 * @result the noumber of matching tiles around

   280

 */

   281

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

   282

{

   283

	TileIndex cur_tile;

   284

	int dx, dy;

   285

	int num = 0;

   286

   287

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

   288

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

   289

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

   290

   291

			if (IsTileType(cur_tile, type)) {

   292

				switch (type) {

   293

					case MP_INDUSTRY:

   294

						if (GetIndustryType(cur_tile) == industry)

   295

							num++;

   296

						break;

   297

   298

					case MP_WATER:

   299

						if (!IsWater(cur_tile))

   300

							break;

   301

						/* FALL THROUGH WHEN WATER TILE */

   302

					case MP_TREES:

   303

						num++;

   304

						break;

   305

   306

					default:

   307

						break;

   308

				}

   309

			}

   310

		}

   311

	}

   312

   313

	return num;

   314

}

   315

   316

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

   317

   318

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

   319

{

   320

	static const uint32 _gen_station_name_bits[] = {

   321

		0,                                      /* 0 */

   322

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

   323

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

   324

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

   325

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

   326

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

   327

	};

   328

   329

	Town *t = st->town;

   330

	uint32 free_names = (uint32)-1;

   331

	int found;

   332

	uint z,z2;

   333

	unsigned long tmp;

   334

   335

	{

   336

		Station *s;

   337

   338

		FOR_ALL_STATIONS(s) {

   339

			if (s != st && s->xy != 0 && s->town==t) {

   340

				uint str = M(s->string_id);

   341

				if (str <= 0x20) {

   342

					if (str == M(STR_SV_STNAME_FOREST))

   343

						str = M(STR_SV_STNAME_WOODS);

   344

					CLRBIT(free_names, str);

   345

				}

   346

			}

   347

		}

   348

	}

   349

   350

	/* check default names */

   351

	tmp = free_names & _gen_station_name_bits[flag];

   352

	if (tmp != 0) {

   353

		found = FindFirstBit(tmp);

   354

		goto done;

   355

	}

   356

   357

	/* check mine? */

   358

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

   359

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

   360

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

   361

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

   362

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

   363

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

   364

			found = M(STR_SV_STNAME_MINES);

   365

			goto done;

   366

		}

   367

	}

   368

   369

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

   370

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

   371

		found = M(STR_SV_STNAME);

   372

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

   373

   374

		found = M(STR_SV_STNAME_CENTRAL);

   375

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

   376

	}

   377

   378

	/* Check lakeside */

   379

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

   380

			DistanceFromEdge(tile) < 20 &&

   381

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

   382

		found = M(STR_SV_STNAME_LAKESIDE);

   383

		goto done;

   384

	}

   385

   386

	/* Check woods */

   387

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

   388

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

   389

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

   390

			) {

   391

		found = _opt.landscape == LT_DESERT ?

   392

			M(STR_SV_STNAME_FOREST) : M(STR_SV_STNAME_WOODS);

   393

		goto done;

   394

	}

   395

   396

	/* check elevation compared to town */

   397

	z = GetTileZ(tile);

   398

	z2 = GetTileZ(t->xy);

   399

	if (z < z2) {

   400

		found = M(STR_SV_STNAME_VALLEY);

   401

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

   402

	} else if (z > z2) {

   403

		found = M(STR_SV_STNAME_HEIGHTS);

   404

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

   405

	}

   406

   407

	/* check direction compared to town */

   408

	{

   409

		static const int8 _direction_and_table[] = {

   410

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

   411

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

   412

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

   413

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

   414

		};

   415

   416

		free_names &= _direction_and_table[

   417

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

   418

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

   419

	}

   420

   421

	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));

   422

	if (tmp == 0) {

   423

		_error_message = STR_3007_TOO_MANY_STATIONS_LOADING;

   424

		return false;

   425

	}

   426

	found = FindFirstBit(tmp);

   427

   428

done:

   429

	st->string_id = found + STR_SV_STNAME;

   430

	return true;

   431

}

   432

#undef M

   433

   434

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

   435

{

   436

	Station* best_station = NULL;

   437

	Station* st;

   438

   439

	FOR_ALL_STATIONS(st) {

   440

		if (st->xy != 0 && (owner == OWNER_SPECTATOR || st->owner == owner)) {

   441

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

   442

   443

			if (cur_dist < threshold) {

   444

				threshold = cur_dist;

   445

				best_station = st;

   446

			}

   447

		}

   448

	}

   449

   450

	return best_station;

   451

}

   452

   453

static void StationInitialize(Station *st, TileIndex tile)

   454

{

   455

	GoodsEntry *ge;

   456

   457

	st->xy = tile;

   458

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

   459

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

   460

	st->had_vehicle_of_type = 0;

   461

	st->time_since_load = 255;

   462

	st->time_since_unload = 255;

   463

	st->delete_ctr = 0;

   464

	st->facilities = 0;

   465

   466

	st->last_vehicle_type = VEH_Invalid;

   467

   468

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

   469

		ge->waiting_acceptance = 0;

   470

		ge->days_since_pickup = 0;

   471

		ge->enroute_from = INVALID_STATION;

   472

		ge->rating = 175;

   473

		ge->last_speed = 0;

   474

		ge->last_age = 0xFF;

   475

		ge->feeder_profit = 0;

   476

	}

   477

   478

	st->random_bits = Random();

   479

	st->waiting_triggers = 0;

   480

   481

}

   482

   483

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

   484

// st = Station to update for.

   485

static void UpdateStationVirtCoord(Station *st)

   486

{

   487

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

   488

   489

	pt.y -= 32;

   490

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

   491

   492

	SetDParam(0, st->index);

   493

	SetDParam(1, st->facilities);

   494

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

   495

}

   496

   497

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

   498