1

#include "stdafx.h"

     2

#include "ttd.h"

     3

#include "table/strings.h"

     4

#include "map.h"

     5

#include "tile.h"

     6

#include "station.h"

     7

#include "gfx.h"

     8

#include "window.h"

     9

#include "viewport.h"

    10

#include "command.h"

    11

#include "town.h"

    12

#include "vehicle.h"

    13

#include "news.h"

    14

#include "saveload.h"

    15

#include "economy.h"

    16

#include "player.h"

    17

#include "airport.h"

    18

#include "sprite.h"

    19

#include "npf.h"

    20

    21

// FIXME -- need to be embedded into Airport variable. Is dynamically

    22

// deducteable from graphics-tile array, so will not be needed

    23

const byte _airport_size_x[5] = {4, 6, 1, 6, 7 };

    24

const byte _airport_size_y[5] = {3, 6, 1, 6, 7 };

    25

    26

void ShowAircraftDepotWindow(uint tile);

    27

extern void UpdateAirplanesOnNewStation(Station *st);

    28

    29

enum {

    30

	STATIONS_MIN_FREE_FOR_AI = 30

    31

};

    32

    33

static void MarkStationDirty(Station *st)

    34

{

    35

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

    36

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

    37

    38

		MarkAllViewportsDirty(

    39

			st->sign.left - 6,

    40

			st->sign.top,

    41

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

    42

			st->sign.top + 48);

    43

	}

    44

}

    45

    46

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

    47

{

    48

	road_stop->xy = tile;

    49

	road_stop->used = true;

    50

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

    51

	road_stop->slot[0] = road_stop->slot[1] = INVALID_SLOT;

    52

	road_stop->next = NULL;

    53

	road_stop->prev = previous;

    54

	road_stop->station = index;

    55

}

    56

    57

inline int GetRoadStopType(TileIndex tile)

    58

{

    59

	return (_map5[tile] < 0x47) ? RS_TRUCK : RS_BUS;

    60

}

    61

    62

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

    63

{

    64

	switch (type) {

    65

		case RS_BUS: return st->bus_stops;

    66

		case RS_TRUCK: return st->truck_stops;

    67

		default:

    68

			NOT_REACHED();

    69

	}

    70

    71

	return NULL;

    72

}

    73

    74

RoadStop * GetRoadStopByTile(TileIndex tile, RoadStopType type)

    75

{

    76

	const Station *st = GetStation(_map2[tile]);

    77

	RoadStop *rs;

    78

    79

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

    80

		assert(rs->next != NULL);

    81

    82

	return rs;

    83

}

    84

    85

uint GetNumRoadStops(const Station *st, RoadStopType type)

    86

{

    87

	int num = 0;

    88

	const RoadStop *rs;

    89

    90

	assert(st != NULL);

    91

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

    92

    93

	return num;

    94

}

    95

    96

RoadStop * GetFirstFreeRoadStop( void )

    97

{

    98

	RoadStop *rs = _roadstops;

    99

	int i = 0;

   100

   101

	for ( i = 0; i < NUM_ROAD_STOPS; i++, rs++) {

   102

		if (!rs->used) {

   103

			rs->index = i;

   104

			return rs;

   105

		}

   106

	}

   107

   108

	return NULL;

   109

}

   110

   111

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

   112

    radius that is available within the station */

   113

static byte FindCatchmentRadius(Station *st)

   114

{

   115

	byte ret = 0;

   116

   117

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

   118

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

   119

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

   120

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

   121

   122

	if (st->airport_tile) {

   123

		switch (st->airport_type) {

   124

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

   125

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

   126

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

   127

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

   128

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

   129

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

   130

		}

   131

	}

   132

   133

	return ret;

   134

}

   135

   136

#define CHECK_STATIONS_ERR ((Station*)-1)

   137

   138

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

   139

{

   140

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

   141

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

   142

		if (IsTileType(tile_cur, MP_STATION)) {

   143

			int t;

   144

			t = _map2[tile_cur];

   145

			{

   146

				Station *st = GetStation(t);

   147

				// you cannot take control of an oilrig!!

   148

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

   149

					continue;

   150

			}

   151

   152

			if (closest_station == -1) {

   153

				closest_station = t;

   154

			} else if (closest_station != t) {

   155

				_error_message = STR_3006_ADJOINS_MORE_THAN_ONE_EXISTING;

   156

				return CHECK_STATIONS_ERR;

   157

			}

   158

		}

   159

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

   160

	return (closest_station == -1) ? NULL : GetStation(closest_station);

   161

}

   162

   163

TileIndex GetStationTileForVehicle(const Vehicle *v, const Station *st)

   164

{

   165

	switch (v->type) {

   166

		case VEH_Train: 		return st->train_tile;

   167

		case VEH_Aircraft:	return st->airport_tile;

   168

		case VEH_Ship:			return st->dock_tile;

   169

		case VEH_Road:

   170

			if (v->cargo_type == CT_PASSENGERS) {

   171

				if (st->bus_stops != NULL)

   172

					return st->bus_stops->xy;

   173

				else

   174

					return 0;

   175

			} else {

   176

				if (st->truck_stops != NULL)

   177

					return st->truck_stops->xy;

   178

				else

   179

					return 0;

   180

			}

   181

		default:

   182

			assert(false);

   183

			return 0;

   184

	}

   185

}

   186

   187

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

   188

{

   189

	uint16 station_index = st->index;

   190

	uint i;

   191

	uint x1 = TileX(tile);

   192

	uint y1 = TileY(tile);

   193

	uint x2 = x1 + w - 1;

   194

	uint y2 = y1 + h - 1;

   195

	uint t;

   196

   197

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

   198

		if (IsTileType(i, MP_STATION) && _map2[i] == station_index) {

   199

			t = TileX(i);

   200

			if (t < x1) x1 = t;

   201

			if (t > x2) x2 = t;

   202

   203

			t = TileY(i);

   204

			if (t < y1) y1 = t;

   205

			if (t > y2) y2 = t;

   206

		}

   207

	}

   208

   209

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

   210

		_error_message = STR_306C_STATION_TOO_SPREAD_OUT;

   211

		return false;

   212

	}

   213

   214

	return true;

   215

}

   216

   217

static Station *AllocateStation(void)

   218

{

   219

	Station *st, *a_free = NULL;

   220

	int num_free = 0;

   221

	int i;

   222

   223

	FOR_ALL_STATIONS(st) {

   224

		if (st->xy == 0) {

   225

			num_free++;

   226

			if (a_free == NULL)

   227

				a_free = st;

   228

		}

   229

	}

   230

   231

	if (a_free == NULL ||

   232

			(num_free < STATIONS_MIN_FREE_FOR_AI && IS_HUMAN_PLAYER(_current_player))) {

   233

		_error_message = STR_3008_TOO_MANY_STATIONS_LOADING;

   234

		return NULL;

   235

	}

   236

   237

	i = a_free->index;

   238

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

   239

	a_free->index = i;

   240

	return a_free;

   241

}

   242

   243

   244

static int CountMapSquareAround(uint tile, byte type, byte min, byte max) {

   245

	static const TileIndexDiffC _count_square_table[] = {

   246

		{-3, -3}, {1, 0}, {1, 0}, {1, 0}, {1, 0}, {1, 0}, {1, 0},

   247

		{-6,  1}, {1, 0}, {1, 0}, {1, 0}, {1, 0}, {1, 0}, {1, 0},

   248

		{-6,  1}, {1, 0}, {1, 0}, {1, 0}, {1, 0}, {1, 0}, {1, 0},

   249

		{-6,  1}, {1, 0}, {1, 0}, {1, 0}, {1, 0}, {1, 0}, {1, 0},

   250

		{-6,  1}, {1, 0}, {1, 0}, {1, 0}, {1, 0}, {1, 0}, {1, 0},

   251

		{-6,  1}, {1, 0}, {1, 0}, {1, 0}, {1, 0}, {1, 0}, {1, 0},

   252

		{-6,  1}, {1, 0}, {1, 0}, {1, 0}, {1, 0}, {1, 0}, {1, 0}

   253

	};

   254

	const TileIndexDiffC *p;

   255

	int num = 0;

   256

   257

	for (p = _count_square_table; p != endof(_count_square_table); ++p) {

   258

		tile = TILE_MASK(tile + ToTileIndexDiff(*p));

   259

   260

		if (IsTileType(tile, type) && _map5[tile] >= min && _map5[tile] <= max)

   261

			num++;

   262

	}

   263

   264

	return num;

   265

}

   266

   267

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

   268

   269

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

   270

{

   271

	static const uint32 _gen_station_name_bits[] = {

   272

		0,																/* 0 */

   273

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

   274

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

   275

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

   276

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

   277

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

   278

	};

   279

   280

	Town *t = st->town;

   281

	uint32 free_names = (uint32)-1;

   282

	int found;

   283

	uint z,z2;

   284

	unsigned long tmp;

   285

   286

	{

   287

		Station *s;

   288

   289

		FOR_ALL_STATIONS(s) {

   290

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

   291

				uint str = M(s->string_id);

   292

				if (str <= 0x20) {

   293

					if (str == M(STR_SV_STNAME_FOREST))

   294

						str = M(STR_SV_STNAME_WOODS);

   295

					CLRBIT(free_names, str);

   296

				}

   297

			}

   298

		}

   299

	}

   300

   301

	/* check default names */

   302

	tmp = free_names & _gen_station_name_bits[flag];

   303

	if (tmp != 0) {

   304

		found = FindFirstBit(tmp);

   305

		goto done;

   306

	}

   307

   308

	/* check mine? */

   309

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

   310

		if (CountMapSquareAround(tile, MP_INDUSTRY, 0, 6) >= 2 ||

   311

		    CountMapSquareAround(tile, MP_INDUSTRY, 0x64, 0x73) >= 2 ||

   312

				CountMapSquareAround(tile, MP_INDUSTRY, 0x2F, 0x33) >= 2 ||

   313

				CountMapSquareAround(tile, MP_INDUSTRY, 0x48, 0x58) >= 2 ||

   314

				CountMapSquareAround(tile, MP_INDUSTRY, 0x5B, 0x63) >= 2) {

   315

					found = M(STR_SV_STNAME_MINES);

   316

					goto done;

   317

				}

   318

	}

   319

   320

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

   321

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

   322

		found = M(STR_SV_STNAME);

   323

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

   324

   325

		found = M(STR_SV_STNAME_CENTRAL);

   326

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

   327

	}

   328

   329

	/* Check lakeside */

   330

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

   331

			DistanceFromEdge(tile) < 20 &&

   332

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

   333

				found = M(STR_SV_STNAME_LAKESIDE);

   334

				goto done;

   335

			}

   336

   337

	/* Check woods */

   338

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

   339

			CountMapSquareAround(tile, MP_TREES, 0, 255) >= 8 ||

   340

			CountMapSquareAround(tile, MP_INDUSTRY, 0x10, 0x11) >= 2 )) {

   341

				found = (_opt.landscape==LT_DESERT) ? M(STR_SV_STNAME_FOREST) : M(STR_SV_STNAME_WOODS);

   342

				goto done;

   343

	}

   344

   345

	/* check elevation compared to town */

   346

	z = GetTileZ(tile);

   347

	z2 = GetTileZ(t->xy);

   348

	if (z < z2) {

   349

		found = M(STR_SV_STNAME_VALLEY);

   350

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

   351

	} else if (z > z2) {

   352

		found = M(STR_SV_STNAME_HEIGHTS);

   353

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

   354

	}

   355

   356

	/* check direction compared to town */

   357

	{

   358

		static const int8 _direction_and_table[] = {

   359

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

   360

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

   361

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

   362

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

   363

		};

   364

   365

		free_names &= _direction_and_table[

   366

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

   367

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

   368

	}

   369

   370

	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));

   371

	if (tmp == 0) {

   372

		_error_message = STR_3007_TOO_MANY_STATIONS_LOADING;

   373

		return false;

   374

	}

   375

	found = FindFirstBit(tmp);

   376

   377

done:

   378

	st->string_id = found + STR_SV_STNAME;

   379

	return true;

   380

}

   381

#undef M

   382

   383

static Station *GetClosestStationFromTile(uint tile, uint threshold, byte owner)

   384

{

   385

	Station *st, *best_station = NULL;

   386

	uint cur_dist;

   387

   388

	FOR_ALL_STATIONS(st) {

   389

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

   390

		if (cur_dist < threshold && (owner == 0xFF || st->owner == owner) && (st->xy != 0)) {

   391

			threshold = cur_dist;

   392

			best_station = st;

   393

		}

   394

	}

   395

   396

	return best_station;

   397

}

   398

   399

static void StationInitialize(Station *st, TileIndex tile)

   400

{

   401

	int i;

   402

	GoodsEntry *ge;

   403

   404

	st->xy = tile;

   405

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

   406

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

   407

	st->had_vehicle_of_type = 0;

   408

	st->time_since_load = 255;

   409

	st->time_since_unload = 255;

   410

	st->delete_ctr = 0;

   411

	st->facilities = 0;

   412

   413

	st->last_vehicle = INVALID_VEHICLE;

   414

   415

	for(i=0,ge=st->goods; i!=NUM_CARGO; i++, ge++) {

   416

		ge->waiting_acceptance = 0;

   417

		ge->days_since_pickup = 0;

   419

		ge->rating = 175;

   420

		ge->last_speed = 0;

   421

		ge->last_age = 0xFF;

   422

	}

   423

   424

	_global_station_sort_dirty = true; // build a new station

   425

}

   426

   427

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

   428

// st = Station to update for.

   429

static void UpdateStationVirtCoord(Station *st)

   430

{

   431

	Point pt = RemapCoords2(TileX(st->xy) * 16, TileY(st->xy) * 16);

   432

   433

	pt.y -= 32;

   434

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

   435

   436

	SetDParam(0, st->index);

   437

	SetDParam(1, st->facilities);

   438

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

   439

}

   440

   441

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

   442

void UpdateAllStationVirtCoord(void)

   443

{

   444

	Station *st;

   445

	FOR_ALL_STATIONS(st) {

   446

		if (st->xy != 0)

   447

			UpdateStationVirtCoord(st);

   448

	}

   449

}

   450

   451

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

   452

static void UpdateStationVirtCoordDirty(Station *st)

   453

{

   454

	MarkStationDirty(st);

   455

	UpdateStationVirtCoord(st);

   456

	MarkStationDirty(st);

   457

}

   458

   459

// Get a mask of the cargo types that the station accepts.

   460

static uint GetAcceptanceMask(Station *st)

   461

{

   462

	uint mask = 0;

   463

	uint cur_mask = 1;

   464

	int i;

   465

	for(i=0; i!=NUM_CARGO; i++,cur_mask*=2) {

   466

		if (st->goods[i].waiting_acceptance & 0x8000)

   467

			mask |= cur_mask;

   468

	}

   469

	return mask;

   470

}

   471

   472

// Items contains the two cargo names that are to be accepted or rejected.

   473

// msg is the string id of the message to display.

   474

static void ShowRejectOrAcceptNews(Station *st, uint32 items, StringID msg)

   475

{

   476

	if (items) {

   477

		SetDParam(2, items >> 16);

   478

		SetDParam(1, items & 0xFFFF);

   479

		SetDParam(0, st->index);

   480

		AddNewsItem(msg + ((items >> 16)?1:0), NEWS_FLAGS(NM_SMALL, NF_VIEWPORT|NF_TILE, NT_ACCEPTANCE, 0), st->xy, 0);

   481

	}

   482

}

   483

   484

// Get a list of the cargo types being produced around the tile.

   485

void GetProductionAroundTiles(uint *produced, uint tile, int w, int h, int rad)

   486

{

   487

	int x,y;

   488

	int x1,y1,x2,y2;

   489

	int xc,yc;

   490

	byte cargos[2];

   491

   492

	memset(produced, 0, NUM_CARGO * sizeof(uint));

   493

   494

	x = TileX(tile);

   495

	y = TileY(tile);

   496

   497

	// expand the region by 4 tiles on each side

   498

	// while making sure that we remain inside the board.

   499

	x2 = min(x + w + rad, MapSizeX());

   500

	x1 = max(x-rad, 0);

   501

   502

	y2 = min(y + h + rad, MapSizeY());

   503

	y1 = max(y-rad, 0);

   504

   505

	assert(x1 < x2);

   506

	assert(y1 < y2);

   507

	assert(w > 0);

   508

	assert(h > 0);

   509

   510

	yc = y1;