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 "table/directions.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

   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

   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;

   170

		default:

   171

			assert(false);

   172

			return 0;

   173

	}

   174

}

   175

   176

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

   177

{

   178

	uint16 station_index = st->index;

   179

	uint i;

   180

	uint x1 = TileX(tile);

   181

	uint y1 = TileY(tile);

   182

	uint x2 = x1 + w - 1;

   183

	uint y2 = y1 + h - 1;

   184

	uint t;

   185

   186

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

   187

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

   188

			t = TileX(i);

   189

			if (t < x1) x1 = t;

   190

			if (t > x2) x2 = t;

   191

   192

			t = TileY(i);

   193

			if (t < y1) y1 = t;

   194

			if (t > y2) y2 = t;

   195

		}

   196

	}

   197

   198

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

   199

		_error_message = STR_306C_STATION_TOO_SPREAD_OUT;

   200

		return false;

   201

	}

   202

   203

	return true;

   204

}

   205

   206

static Station *AllocateStation(void)

   207

{

   208

	Station *st, *a_free = NULL;

   209

	int num_free = 0;

   210

	int i;

   211

   212

	FOR_ALL_STATIONS(st) {

   213

		if (st->xy == 0) {

   214

			num_free++;

   215

			if (a_free == NULL)

   216

				a_free = st;

   217

		}

   218

	}

   219

   220

	if (a_free == NULL ||

   221

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

   222

		_error_message = STR_3008_TOO_MANY_STATIONS_LOADING;

   223

		return NULL;

   224

	}

   225

   226

	i = a_free->index;

   227

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

   228

	a_free->index = i;

   229

	return a_free;

   230

}

   231

   232

   233

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

   234

	static const TileIndexDiffC _count_square_table[] = {

   235

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

   236

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

   237

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

   238

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

   239

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

   240

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

   241

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

   242

	};

   243

	const TileIndexDiffC *p;

   244

	int num = 0;

   245

   246

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

   247

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

   248

   249

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

   250

			num++;

   251

	}

   252

   253

	return num;

   254

}

   255

   256

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

   257

   258

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

   259

{

   260

	static const uint32 _gen_station_name_bits[] = {

   261

		0,																/* 0 */

   262

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

   263

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

   264

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

   265

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

   266

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

   267

	};

   268

   269

	Town *t = st->town;

   270

	uint32 free_names = (uint32)-1;

   271

	int found;

   272

	uint z,z2;

   273

	unsigned long tmp;

   274

   275

	{

   276

		Station *s;

   277

   278

		FOR_ALL_STATIONS(s) {

   279

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

   280

				uint str = M(s->string_id);

   281

				if (str <= 0x20) {

   282

					if (str == M(STR_SV_STNAME_FOREST))

   283

						str = M(STR_SV_STNAME_WOODS);

   284

					CLRBIT(free_names, str);

   285

				}

   286

			}

   287

		}

   288

	}

   289

   290

	/* check default names */

   291

	tmp = free_names & _gen_station_name_bits[flag];

   292

	if (tmp != 0) {

   293

		found = FindFirstBit(tmp);

   294

		goto done;

   295

	}

   296

   297

	/* check mine? */

   298

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

   299

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

   300

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

   301

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

   302

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

   303

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

   304

					found = M(STR_SV_STNAME_MINES);

   305

					goto done;

   306

				}

   307

	}

   308

   309

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

   310

	if (GetTileDist1D(tile,t->xy) < 8) {

   311

		found = M(STR_SV_STNAME);

   312

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

   313

   314

		found = M(STR_SV_STNAME_CENTRAL);

   315

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

   316

	}

   317

   318

	/* Check lakeside */

   319

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

   320

			!CheckDistanceFromEdge(tile, 20) &&

   321

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

   322

				found = M(STR_SV_STNAME_LAKESIDE);

   323

				goto done;

   324

			}

   325

   326

	/* Check woods */

   327

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

   328

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

   329

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

   330

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

   331

				goto done;

   332

	}

   333

   334

	/* check elevation compared to town */

   335

	z = GetTileZ(tile);

   336

	z2 = GetTileZ(t->xy);

   337

	if (z < z2) {

   338

		found = M(STR_SV_STNAME_VALLEY);

   339

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

   340

	} else if (z > z2) {

   341

		found = M(STR_SV_STNAME_HEIGHTS);

   342

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

   343

	}

   344

   345

	/* check direction compared to town */

   346

	{

   347

		static const int8 _direction_and_table[] = {

   348

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

   349

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

   350

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

   351

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

   352

		};

   353

   354

		free_names &= _direction_and_table[

   355

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

   356

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

   357

	}

   358

   359

	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));

   360

	if (tmp == 0) {

   361

		_error_message = STR_3007_TOO_MANY_STATIONS_LOADING;

   362

		return false;

   363

	}

   364

	found = FindFirstBit(tmp);

   365

   366

done:

   367

	st->string_id = found + STR_SV_STNAME;

   368

	return true;

   369

}

   370

#undef M

   371

   372

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

   373

{

   374

	Station *st, *best_station = NULL;

   375

	uint cur_dist;

   376

   377

	FOR_ALL_STATIONS(st) {

   378

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

   379

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

   380

			threshold = cur_dist;

   381

			best_station = st;

   382

		}

   383

	}

   384

   385

	return best_station;

   386

}

   387

   388

static void StationInitialize(Station *st, TileIndex tile)

   389

{

   390

	int i;

   391

	GoodsEntry *ge;

   392

   393

	st->xy = tile;

   396

	st->had_vehicle_of_type = 0;

   397

	st->time_since_load = 255;

   398

	st->time_since_unload = 255;

   399

	st->delete_ctr = 0;

   400

	st->facilities = 0;

   401

   402

	st->last_vehicle = INVALID_VEHICLE;

   403

   404

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

   405

		ge->waiting_acceptance = 0;

   406

		ge->days_since_pickup = 0;

   407

		ge->enroute_from = 0xFF;

   408

		ge->rating = 175;

   409

		ge->last_speed = 0;

   410

		ge->last_age = 0xFF;

   411

	}

   412

   413

	_global_station_sort_dirty = true; // build a new station

   414

}

   415

   416

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

   417

// st = Station to update for.

   418

static void UpdateStationVirtCoord(Station *st)

   419

{

   420

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

   422

	pt.y -= 32;

   424

   425

	SetDParam(0, st->index);

   426

	SetDParam(1, st->facilities);

   427

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

   428

}

   429

   430

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

   431

void UpdateAllStationVirtCoord(void)

   432

{

   433

	Station *st;

   434

	FOR_ALL_STATIONS(st) {

   435

		if (st->xy != 0)

   436

			UpdateStationVirtCoord(st);

   437

	}

   438

}

   439

   440

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

   441

static void UpdateStationVirtCoordDirty(Station *st)

   442

{

   443

	MarkStationDirty(st);

   444

	UpdateStationVirtCoord(st);

   445

	MarkStationDirty(st);

   446

}

   447

   448

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

   449

static uint GetAcceptanceMask(Station *st)

   450

{

   451

	uint mask = 0;

   452

	uint cur_mask = 1;

   453

	int i;

   454

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

   455

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

   456

			mask |= cur_mask;

   457

	}

   458

	return mask;

   459

}

   460

   461

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

   462

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

   463

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

   464

{

   465

	if (items) {

   466

		SetDParam(2, items >> 16);

   467

		SetDParam(1, items & 0xFFFF);

   468

		SetDParam(0, st->index);

   469

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

   470

	}

   471

}

   472

   473

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

   474

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

   475

{

   476

	int x,y;

   477

	int x1,y1,x2,y2;

   478

	int xc,yc;

   479

	byte cargos[2];

   480

   481

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

   482

   483

	x = TileX(tile);

   484

	y = TileY(tile);

   485

   486

	// expand the region by 4 tiles on each side

   487

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

   488

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

   489

	x1 = max(x-rad, 0);

   490

   491

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

   492

	y1 = max(y-rad, 0);

   493

   494

	assert(x1 < x2);

   495

	assert(y1 < y2);

   496

	assert(w > 0);

   497

	assert(h > 0);

   498

   499

	yc = y1;

   500

	do {

   501

		xc = x1;

   502

		do {

   503

			if (!(IS_INSIDE_1D(xc, x, w) && IS_INSIDE_1D(yc, y, h))) {

   504

				GetProducedCargoProc *gpc;

   505

				uint tile = TILE_XY(xc, yc);

   506

				gpc = _tile_type_procs[GetTileType(tile)]->get_produced_cargo_proc;

   507

				if (gpc != NULL) {

   508

					cargos[0] = cargos[1] = 0xFF;

   509

					gpc(tile, cargos);

   510

					if (cargos[0] != 0xFF) {

   511

						produced[cargos[0]]++;