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

    42

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

    43

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

    44

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

    45

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

    46

    47

void ShowAircraftDepotWindow(uint tile);

    48

extern void UpdateAirplanesOnNewStation(Station *st);

    49

    50

static void MarkStationDirty(Station *st)

    51

{

    52

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

    53

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

    54

    55

		MarkAllViewportsDirty(

    56

			st->sign.left - 6,

    57

			st->sign.top,

    58

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

    59

			st->sign.top + 48);

    60

	}

    61

}

    62

    63

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

    64

{

    65

	road_stop->xy = tile;

    66

	road_stop->used = true;

    67

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

    68

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

    69

	road_stop->next = NULL;

    70

	road_stop->prev = previous;

    71

	road_stop->station = index;

    72

}

    73

    74

inline int GetRoadStopType(TileIndex tile)

    75

{

    76

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

    77

}

    78

    79

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

    80

{

    81

	switch (type) {

    82

		case RS_BUS: return st->bus_stops;

    83

		case RS_TRUCK: return st->truck_stops;

    84

		default:

    85

			NOT_REACHED();

    86

	}

    87

    88

	return NULL;

    89

}

    90

    91

RoadStop * GetRoadStopByTile(TileIndex tile, RoadStopType type)

    92

{

    93

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

    94

	RoadStop *rs;

    95

    96

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

    97

		assert(rs->next != NULL);

    98

    99

	return rs;

   100

}

   101

   102

uint GetNumRoadStops(const Station *st, RoadStopType type)

   103

{

   104

	int num = 0;

   105

	const RoadStop *rs;

   106

   107

	assert(st != NULL);

   108

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

   109

   110

	return num;

   111

}

   112

   113

RoadStop * GetFirstFreeRoadStop( void )

   114

{

   115

	RoadStop *rs = _roadstops;

   116

	int i = 0;

   117

   118

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

   119

		if (!rs->used) {

   120

			rs->index = i;

   121

			return rs;

   122

		}

   123

	}

   124

   125

	return NULL;

   126

}

   127

   128

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

   129

    radius that is available within the station */

   130

static byte FindCatchmentRadius(Station *st)

   131

{

   132

	byte ret = 0;

   133

   134

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

   135

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

   136

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

   137

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

   138

   139

	if (st->airport_tile) {

   140

		switch (st->airport_type) {

   141

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

   142

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

   143

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

   144

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

   145

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

   146

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

   147

		}

   148

	}

   149

   150

	return ret;

   151

}

   152

   153

#define CHECK_STATIONS_ERR ((Station*)-1)

   154

   155

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

   156

{

   157

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

   158

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

   159

		if (IsTileType(tile_cur, MP_STATION)) {

   160

			int t;

   161

			t = _map2[tile_cur];

   162

			{

   163

				Station *st = GetStation(t);

   164

				// you cannot take control of an oilrig!!

   165

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

   166

					continue;

   167

			}

   168

   169

			if (closest_station == -1) {

   170

				closest_station = t;

   171

			} else if (closest_station != t) {

   172

				_error_message = STR_3006_ADJOINS_MORE_THAN_ONE_EXISTING;

   173

				return CHECK_STATIONS_ERR;

   174

			}

   175

		}

   176

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

   177

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

   178

}

   179

   180

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

   181

{

   182

	switch (v->type) {

   183

		case VEH_Train: 		return st->train_tile;

   184

		case VEH_Aircraft:	return st->airport_tile;

   185

		case VEH_Ship:			return st->dock_tile;

   186

		case VEH_Road:

   187

			if (v->cargo_type == CT_PASSENGERS) {

   188

				if (st->bus_stops != NULL)

   189

					return st->bus_stops->xy;

   190

				else

   191

					return 0;

   192

			} else {

   193

				if (st->truck_stops != NULL)

   194

					return st->truck_stops->xy;

   195

				else

   196

					return 0;

   197

			}

   198

		default:

   199

			assert(false);

   200

			return 0;

   201

	}

   202

}

   203

   204

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

   205

{

   206

	uint16 station_index = st->index;

   207

	uint i;

   208

	uint x1 = TileX(tile);

   209

	uint y1 = TileY(tile);

   210

	uint x2 = x1 + w - 1;

   211

	uint y2 = y1 + h - 1;

   212

	uint t;

   213

   214

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

   215

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

   216

			t = TileX(i);

   217

			if (t < x1) x1 = t;

   218

			if (t > x2) x2 = t;

   219

   220

			t = TileY(i);

   221

			if (t < y1) y1 = t;

   222

			if (t > y2) y2 = t;

   223

		}

   224

	}

   225

   226

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

   227

		_error_message = STR_306C_STATION_TOO_SPREAD_OUT;

   228

		return false;

   229

	}

   230

   231

	return true;

   232

}

   233

   234

static Station *AllocateStation(void)

   235

{

   237

   238

	FOR_ALL_STATIONS(st) {

   239

		if (st->xy == 0) {

   246

		}

   247

	}

   248

   255

}

   256

   257

   258

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

   259

	static const TileIndexDiffC _count_square_table[] = {

   260

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

   261

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

   262

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

   263

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

   264

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

   265

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

   266

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

   267

	};

   268

	const TileIndexDiffC *p;

   269

	int num = 0;

   270

   271

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

   272

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

   273

   274

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

   275

			num++;

   276

	}

   277

   278

	return num;

   279

}

   280

   281

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

   282

   283

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

   284

{

   285

	static const uint32 _gen_station_name_bits[] = {

   286

		0,																/* 0 */

   287

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

   288

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

   289

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

   290

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

   291

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

   292

	};

   293

   294

	Town *t = st->town;

   295

	uint32 free_names = (uint32)-1;

   296

	int found;

   297

	uint z,z2;

   298

	unsigned long tmp;

   299

   300

	{

   301

		Station *s;

   302

   303

		FOR_ALL_STATIONS(s) {

   304

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

   305

				uint str = M(s->string_id);

   306

				if (str <= 0x20) {

   307

					if (str == M(STR_SV_STNAME_FOREST))

   308

						str = M(STR_SV_STNAME_WOODS);

   309

					CLRBIT(free_names, str);

   310

				}

   311

			}

   312

		}

   313

	}

   314

   315

	/* check default names */

   316

	tmp = free_names & _gen_station_name_bits[flag];

   317

	if (tmp != 0) {

   318

		found = FindFirstBit(tmp);

   319

		goto done;

   320

	}

   321

   322

	/* check mine? */

   323

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

   324

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

   325

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

   326

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

   327

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

   328

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

   329

					found = M(STR_SV_STNAME_MINES);

   330

					goto done;

   331

				}

   332

	}

   333

   334

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

   335

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

   336

		found = M(STR_SV_STNAME);

   337

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

   338

   339

		found = M(STR_SV_STNAME_CENTRAL);

   340

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

   341

	}

   342

   343

	/* Check lakeside */

   344

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

   345

			DistanceFromEdge(tile) < 20 &&

   346

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

   347

				found = M(STR_SV_STNAME_LAKESIDE);

   348

				goto done;

   349

			}

   350

   351

	/* Check woods */

   352

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

   353

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

   354

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

   355

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

   356

				goto done;

   357

	}

   358

   359

	/* check elevation compared to town */

   360

	z = GetTileZ(tile);

   361

	z2 = GetTileZ(t->xy);

   362

	if (z < z2) {

   363

		found = M(STR_SV_STNAME_VALLEY);

   364

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

   365

	} else if (z > z2) {

   366

		found = M(STR_SV_STNAME_HEIGHTS);

   367

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

   368

	}

   369

   370

	/* check direction compared to town */

   371

	{

   372

		static const int8 _direction_and_table[] = {

   373

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

   374

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

   375

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

   376

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

   377

		};

   378

   379

		free_names &= _direction_and_table[

   380

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

   381

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

   382

	}

   383

   384

	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));

   385

	if (tmp == 0) {

   386

		_error_message = STR_3007_TOO_MANY_STATIONS_LOADING;

   387

		return false;

   388

	}

   389

	found = FindFirstBit(tmp);

   390

   391

done:

   392

	st->string_id = found + STR_SV_STNAME;

   393

	return true;

   394

}

   395

#undef M

   396

   397

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

   398

{

   399

	Station *st, *best_station = NULL;

   400

	uint cur_dist;

   401

   402

	FOR_ALL_STATIONS(st) {

   403

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

   404

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

   405

			threshold = cur_dist;

   406

			best_station = st;

   407

		}

   408

	}

   409

   410

	return best_station;

   411

}

   412

   413

static void StationInitialize(Station *st, TileIndex tile)

   414

{

   415

	int i;

   416

	GoodsEntry *ge;

   417

   418

	st->xy = tile;

   419

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

   420

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

   421

	st->had_vehicle_of_type = 0;

   422

	st->time_since_load = 255;

   423

	st->time_since_unload = 255;

   424

	st->delete_ctr = 0;

   425

	st->facilities = 0;

   426

   427

	st->last_vehicle = INVALID_VEHICLE;

   428

   429

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

   430

		ge->waiting_acceptance = 0;

   431

		ge->days_since_pickup = 0;

   432

		ge->enroute_from = INVALID_STATION;

   433

		ge->rating = 175;

   434

		ge->last_speed = 0;

   435

		ge->last_age = 0xFF;

   436

	}

   437

   438

	_global_station_sort_dirty = true; // build a new station

   439

}

   440

   441

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

   442

// st = Station to update for.

   443

static void UpdateStationVirtCoord(Station *st)

   444

{

   445

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

   446

   447

	pt.y -= 32;

   448

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

   449

   450

	SetDParam(0, st->index);

   451

	SetDParam(1, st->facilities);

   452

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

   453

}

   454

   455

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

   456

void UpdateAllStationVirtCoord(void)

   457

{

   458

	Station *st;

   459

	FOR_ALL_STATIONS(st) {

   460

		if (st->xy != 0)

   461

			UpdateStationVirtCoord(st);

   462

	}

   463

}

   464

   465

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

   466

static void UpdateStationVirtCoordDirty(Station *st)

   467

{

   468

	MarkStationDirty(st);

   469

	UpdateStationVirtCoord(st);

   470

	MarkStationDirty(st);

   471

}

   472

   473

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

   474

static uint GetAcceptanceMask(Station *st)

   475

{

   476

	uint mask = 0;

   477

	uint cur_mask = 1;

   478

	int i;

   479

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

   480

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

   481

			mask |= cur_mask;

   482

	}

   483

	return mask;

   484

}

   485

   486

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

   487

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

   488

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

   489

{

   490

	if (items) {

   491

		SetDParam(2, items >> 16);

   492

		SetDParam(1, items & 0xFFFF);

   493

		SetDParam(0, st->index);

   494

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

   495

	}

   496

}

   497

   498

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

   499

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

   500

{

   501

	int x,y;

   502

	int x1,y1,x2,y2;

   503

	int xc,yc;

   504

	byte cargos[2];

   505

   506

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

   507

   508

	x = TileX(tile);

   509

	y = TileY(tile);