1

/* $Id$ */

     2

     3

/** @file economy.cpp */

     4

     5

#include "stdafx.h"

     6

#include "openttd.h"

     7

#include "currency.h"

     8

#include "functions.h"

     9

#include "landscape.h"

    10

#include "strings.h" // XXX InjectDParam()

    11

#include "table/strings.h"

    12

#include "table/sprites.h"

    13

#include "map.h"

    14

#include "news.h"

    15

#include "player.h"

    16

#include "station.h"

    17

#include "vehicle.h"

    18

#include "window.h"

    19

#include "gfx.h"

    20

#include "command.h"

    21

#include "saveload.h"

    22

#include "economy.h"

    23

#include "industry.h"

    24

#include "town.h"

    25

#include "network/network.h"

    26

#include "sound.h"

    27

#include "engine.h"

    28

#include "network/network_data.h"

    29

#include "variables.h"

    30

#include "vehicle_gui.h"

    31

#include "ai/ai.h"

    32

#include "train.h"

    33

#include "roadveh.h"

    34

#include "aircraft.h"

    35

#include "newgrf_engine.h"

    36

#include "newgrf_sound.h"

    37

#include "newgrf_callbacks.h"

    38

#include "unmovable.h"

    39

#include "date.h"

    40

#include "cargotype.h"

    41

#include "player_face.h"

    42

#include "group.h"

    43

    44

/* Score info */

    45

const ScoreInfo _score_info[] = {

    46

	{ SCORE_VEHICLES,        120, 100 },

    47

	{ SCORE_STATIONS,         80, 100 },

    48

	{ SCORE_MIN_PROFIT,    10000, 100 },

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	{ SCORE_MIN_INCOME,    50000,  50 },

    50

	{ SCORE_MAX_INCOME,   100000, 100 },

    51

	{ SCORE_DELIVERED,     40000, 400 },

    52

	{ SCORE_CARGO,             8,  50 },

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	{ SCORE_MONEY,      10000000,  50 },

    54

	{ SCORE_LOAN,         250000,  50 },

    55

	{ SCORE_TOTAL,             0,   0 }

    56

};

    57

    58

int _score_part[MAX_PLAYERS][SCORE_END];

    59

    60

int64 CalculateCompanyValue(const Player* p)

    61

{

    62

	PlayerID owner = p->index;

    63

	int64 value;

    64

    65

	{

    66

		Station *st;

    67

		uint num = 0;

    68

    69

		FOR_ALL_STATIONS(st) {

    70

			if (st->owner == owner) num += CountBitsSet(st->facilities);

    71

		}

    72

    73

		value = num * _price.station_value * 25;

    74

	}

    75

    76

	{

    77

		Vehicle *v;

    78

    79

		FOR_ALL_VEHICLES(v) {

    80

			if (v->owner != owner) continue;

    81

    82

			if (v->type == VEH_TRAIN ||

    83

					v->type == VEH_ROAD ||

    84

					(v->type == VEH_AIRCRAFT && IsNormalAircraft(v)) ||

    85

					v->type == VEH_SHIP) {

    86

				value += v->value * 3 >> 1;

    87

			}

    88

		}

    89

	}

    90

    92

    93

	return max(value, 1LL);

    94

}

    95

    96

/** if update is set to true, the economy is updated with this score

    97

 *  (also the house is updated, should only be true in the on-tick event)

    98

 * @param update the economy with calculated score

    99

 * @param p player been evaluated

   100

 * @return actual score of this player

   101

 * */

   102

int UpdateCompanyRatingAndValue(Player *p, bool update)

   103

{

   104

	byte owner = p->index;

   105

	int score = 0;

   106

   107

	memset(_score_part[owner], 0, sizeof(_score_part[owner]));

   108

   109

/* Count vehicles */

   110

	{

   111

		Vehicle *v;

   112

		int32 min_profit = 0;

   113

		bool min_profit_first = true;

   114

		uint num = 0;

   115

   116

		FOR_ALL_VEHICLES(v) {

   117

			if (v->owner != owner) continue;

   118

			if (IsPlayerBuildableVehicleType(v->type) && v->IsPrimaryVehicle()) {

   119

				num++;

   120

				if (v->age > 730) {

   121

					/* Find the vehicle with the lowest amount of profit */

   122

					if (min_profit_first == true) {

   123

						min_profit = v->profit_last_year;

   124

						min_profit_first = false;

   125

					} else if (min_profit > v->profit_last_year) {

   126

						min_profit = v->profit_last_year;

   127

					}

   128

				}

   129

			}

   130

		}

   131

   132

		_score_part[owner][SCORE_VEHICLES] = num;

   133

		/* Don't allow negative min_profit to show */

   134

		if (min_profit > 0)

   135

			_score_part[owner][SCORE_MIN_PROFIT] = min_profit;

   136

	}

   137

   138

/* Count stations */

   139

	{

   140

		uint num = 0;

   141

		const Station* st;

   142

   143

		FOR_ALL_STATIONS(st) {

   144

			if (st->owner == owner) num += CountBitsSet(st->facilities);

   145

		}

   146

		_score_part[owner][SCORE_STATIONS] = num;

   147

	}

   148

   149

/* Generate statistics depending on recent income statistics */

   150

	{

   151

		const PlayerEconomyEntry* pee;

   152

		int numec;

   153

		int32 min_income;

   154

		int32 max_income;

   155

   156

		numec = min(p->num_valid_stat_ent, 12);

   157

		if (numec != 0) {

   158

			min_income = 0x7FFFFFFF;

   159

			max_income = 0;

   160

			pee = p->old_economy;

   161

			do {

   162

				min_income = min(min_income, pee->income + pee->expenses);

   163

				max_income = max(max_income, pee->income + pee->expenses);

   164

			} while (++pee,--numec);

   165

   166

			if (min_income > 0)

   167

				_score_part[owner][SCORE_MIN_INCOME] = min_income;

   168

   169

			_score_part[owner][SCORE_MAX_INCOME] = max_income;

   170

		}

   171

	}

   172

   173

/* Generate score depending on amount of transported cargo */

   174

	{

   175

		const PlayerEconomyEntry* pee;

   176

		int numec;

   177

		uint32 total_delivered;

   178

   179

		numec = min(p->num_valid_stat_ent, 4);

   180

		if (numec != 0) {

   181

			pee = p->old_economy;

   182

			total_delivered = 0;

   183

			do {

   184

				total_delivered += pee->delivered_cargo;

   185

			} while (++pee,--numec);

   186

   187

			_score_part[owner][SCORE_DELIVERED] = total_delivered;

   188

		}

   189

	}

   190

   191

/* Generate score for variety of cargo */

   192

	{

   193

		uint num = CountBitsSet(p->cargo_types);

   194

		_score_part[owner][SCORE_CARGO] = num;

   195

		if (update) p->cargo_types = 0;

   196

	}

   197

   198

/* Generate score for player money */

   199

	{

   200

		int32 money = p->player_money;

   201

		if (money > 0) {

   202

			_score_part[owner][SCORE_MONEY] = money;

   203

		}

   204

	}

   205

   206

/* Generate score for loan */

   207

	{

   208

		_score_part[owner][SCORE_LOAN] = _score_info[SCORE_LOAN].needed - p->current_loan;

   209

	}

   210

   211

	/* Now we calculate the score for each item.. */

   212

	{

   213

		int total_score = 0;

   214

		int s;

   215

		score = 0;

   216

		for (ScoreID i = SCORE_BEGIN; i < SCORE_END; i++) {

   217

			/* Skip the total */

   218

			if (i == SCORE_TOTAL) continue;

   219

			/*  Check the score */

   220

			s = (_score_part[owner][i] >= _score_info[i].needed) ?

   221

				_score_info[i].score :

   222

				_score_part[owner][i] * _score_info[i].score / _score_info[i].needed;

   223

			if (s < 0) s = 0;

   224

			score += s;

   225

			total_score += _score_info[i].score;

   226

		}

   227

   228

		_score_part[owner][SCORE_TOTAL] = score;

   229

   230

		/*  We always want the score scaled to SCORE_MAX (1000) */

   231

		if (total_score != SCORE_MAX) score = score * SCORE_MAX / total_score;

   232

	}

   233

   234

	if (update) {

   235

		p->old_economy[0].performance_history = score;

   236

		UpdateCompanyHQ(p, score);

   237

		p->old_economy[0].company_value = CalculateCompanyValue(p);

   238

	}

   239

   240

	InvalidateWindow(WC_PERFORMANCE_DETAIL, 0);

   241

	return score;

   242

}

   243

   244

/*  use PLAYER_SPECTATOR as new_player to delete the player. */

   245

void ChangeOwnershipOfPlayerItems(PlayerID old_player, PlayerID new_player)

   246

{

   247

	Town *t;

   248

	PlayerID old = _current_player;

   249

   250

	assert(old_player != new_player);

   251

   252

	{

   253

		Player *p;

   254

		uint i;

   255

   256

		/* See if the old_player had shares in other companies */

   257

		_current_player = old_player;

   258

		FOR_ALL_PLAYERS(p) {

   259

			for (i = 0; i < 4; i++) {

   260

				if (p->share_owners[i] == old_player) {

   261

					/* Sell his shares */

   262

					CommandCost res = DoCommand(0, p->index, 0, DC_EXEC, CMD_SELL_SHARE_IN_COMPANY);

   263

					/* Because we are in a DoCommand, we can't just execute an other one and

   264

					 *  expect the money to be removed. We need to do it ourself! */

   265

					SubtractMoneyFromPlayer(res);

   266

				}

   267

			}

   268

		}

   269

   270

		/* Sell all the shares that people have on this company */

   271

		p = GetPlayer(old_player);

   272

		for (i = 0; i < 4; i++) {

   273

			_current_player = p->share_owners[i];

   274

			if (_current_player != PLAYER_SPECTATOR) {

   275

				/* Sell the shares */

   276

				CommandCost res = DoCommand(0, old_player, 0, DC_EXEC, CMD_SELL_SHARE_IN_COMPANY);

   277

				/* Because we are in a DoCommand, we can't just execute an other one and

   278

				 *  expect the money to be removed. We need to do it ourself! */

   279

				SubtractMoneyFromPlayer(res);

   280

			}

   281

		}

   282

	}

   283

   284

	_current_player = old_player;

   285

   286

	/* Temporarily increase the player's money, to be sure that

   287

	 * removing his/her property doesn't fail because of lack of money.

   288

	 * Not too drastically though, because it could overflow */

   289

	if (new_player == PLAYER_SPECTATOR) {

   291

	}

   292

   293

	if (new_player == PLAYER_SPECTATOR) {

   294

		Subsidy *s;

   295

   296

		for (s = _subsidies; s != endof(_subsidies); s++) {

   297

			if (s->cargo_type != CT_INVALID && s->age >= 12) {

   298

				if (GetStation(s->to)->owner == old_player) s->cargo_type = CT_INVALID;

   299

			}

   300

		}

   301

	}

   302

   303

	/* Take care of rating in towns */

   304

	FOR_ALL_TOWNS(t) {

   305

		/* If a player takes over, give the ratings to that player. */

   306

		if (new_player != PLAYER_SPECTATOR) {

   307

			if (HASBIT(t->have_ratings, old_player)) {

   308

				if (HASBIT(t->have_ratings, new_player)) {

   309

					// use max of the two ratings.

   310

					t->ratings[new_player] = max(t->ratings[new_player], t->ratings[old_player]);

   311

				} else {

   312

					SETBIT(t->have_ratings, new_player);

   313

					t->ratings[new_player] = t->ratings[old_player];

   314

				}

   315

			}

   316

		}

   317

   318

		/* Reset the ratings for the old player */

   319

		t->ratings[old_player] = 500;

   320

		CLRBIT(t->have_ratings, old_player);

   321

	}

   322

   323

	{

   324

		int num_train = 0;

   325

		int num_road = 0;

   326

		int num_ship = 0;

   327

		int num_aircraft = 0;

   328

		Vehicle *v;

   329

   330

		/*  Determine Ids for the new vehicles */

   331

		FOR_ALL_VEHICLES(v) {

   332

			if (v->owner == new_player) {

   333

				switch (v->type) {

   334

					case VEH_TRAIN:    if (IsFrontEngine(v)) num_train++; break;

   335

					case VEH_ROAD:     if (IsRoadVehFront(v)) num_road++; break;

   336

					case VEH_SHIP:     num_ship++; break;

   337

					case VEH_AIRCRAFT: if (IsNormalAircraft(v)) num_aircraft++; break;

   338

					default: break;

   339

				}

   340

			}

   341

		}

   342

   343

		FOR_ALL_VEHICLES(v) {

   344

			if (v->owner == old_player && IS_BYTE_INSIDE(v->type, VEH_TRAIN, VEH_AIRCRAFT + 1)) {

   345

				if (new_player == PLAYER_SPECTATOR) {

   346

					DeleteWindowById(WC_VEHICLE_VIEW, v->index);

   347

					DeleteWindowById(WC_VEHICLE_DETAILS, v->index);

   348

					DeleteWindowById(WC_VEHICLE_ORDERS, v->index);

   349

   350

					if (v->IsPrimaryVehicle() || (v->type == VEH_TRAIN && IsFreeWagon(v))) {

   351

						switch (v->type) {

   352

							default: NOT_REACHED();

   353

   354

							case VEH_TRAIN: {

   355

								Vehicle *u = v;

   356

								do {

   357

									Vehicle *next = GetNextVehicle(u);

   358

									DeleteVehicle(u);

   359

									u = next;

   360

								} while (u != NULL);

   361

							} break;

   362

   363

							case VEH_ROAD:

   364

							case VEH_SHIP:

   365

								DeleteVehicle(v);

   366

								break;

   367

   368

							case VEH_AIRCRAFT:

   369

								DeleteVehicleChain(v);

   370

								break;

   371

						}

   372

					}

   373

				} else {

   374

					v->owner = new_player;

   375

					v->group_id = DEFAULT_GROUP;

   376

					if (IsEngineCountable(v)) GetPlayer(new_player)->num_engines[v->engine_type]++;

   377

					switch (v->type) {

   378

						case VEH_TRAIN:    if (IsFrontEngine(v)) v->unitnumber = ++num_train; break;

   379

						case VEH_ROAD:     if (IsRoadVehFront(v)) v->unitnumber = ++num_road; break;

   380

						case VEH_SHIP:     v->unitnumber = ++num_ship; break;

   381

						case VEH_AIRCRAFT: if (IsNormalAircraft(v)) v->unitnumber = ++num_aircraft; break;

   382

						default: NOT_REACHED();

   383

					}

   384

				}

   385

			}

   386

		}

   387

	}

   388

   389

	/*  Change ownership of tiles */

   390

	{

   391

		TileIndex tile = 0;

   392

		do {

   393

			ChangeTileOwner(tile, old_player, new_player);

   394

		} while (++tile != MapSize());

   395

	}

   396

   397

	/* Change color of existing windows */

   398

	if (new_player != PLAYER_SPECTATOR) ChangeWindowOwner(old_player, new_player);

   399

   400

	_current_player = old;

   401

   402

	MarkWholeScreenDirty();

   403

}

   404

   405

static void ChangeNetworkOwner(PlayerID current_player, PlayerID new_player)

   406

{

   407

#ifdef ENABLE_NETWORK

   408

	if (!_networking) return;

   409

   410

	if (current_player == _local_player) {

   411

		_network_playas = new_player;

   412

		SetLocalPlayer(new_player);

   413

	}

   414

   415

	if (!_network_server) return;

   416

   417

	/* The server has to handle all administrative issues, for example

   418

	* updating and notifying all clients of what has happened */

   419

	NetworkTCPSocketHandler *cs;

   420

	NetworkClientInfo *ci = NetworkFindClientInfoFromIndex(NETWORK_SERVER_INDEX);

   421

   422

	/* The server has just changed from player */

   423

	if (current_player == ci->client_playas) {

   424

		ci->client_playas = new_player;

   425

		NetworkUpdateClientInfo(NETWORK_SERVER_INDEX);

   426

	}

   427

   428

	/* Find all clients that were in control of this company, and mark them as new_player */

   429

	FOR_ALL_CLIENTS(cs) {

   430

		ci = DEREF_CLIENT_INFO(cs);

   431

		if (current_player == ci->client_playas) {

   432

			ci->client_playas = new_player;

   433

			NetworkUpdateClientInfo(ci->client_index);

   434

		}

   435

	}

   436

#endif /* ENABLE_NETWORK */

   437

}

   438

   439

static void PlayersCheckBankrupt(Player *p)

   440

{

   441

	PlayerID owner;

   442

	int64 val;

   443

   444

	/*  If the player has money again, it does not go bankrupt */

   445

	if (p->player_money >= 0) {

   446

		p->quarters_of_bankrupcy = 0;

   447

		return;

   448

	}

   449

   450

	p->quarters_of_bankrupcy++;

   451

   452

	owner = p->index;

   453

   454

	switch (p->quarters_of_bankrupcy) {

   455

		case 2:

   456

			AddNewsItem( (StringID)(owner | NB_BTROUBLE),

   457

				NEWS_FLAGS(NM_CALLBACK, 0, NT_COMPANY_INFO, DNC_BANKRUPCY),0,0);

   458

			break;

   459

		case 3: {

   460

			/* XXX - In multiplayer, should we ask other players if it wants to take

   461

		          over when it is a human company? -- TrueLight */

   462

			if (IsHumanPlayer(owner)) {

   463

				AddNewsItem( (StringID)(owner | NB_BTROUBLE),

   464

					NEWS_FLAGS(NM_CALLBACK, 0, NT_COMPANY_INFO, DNC_BANKRUPCY),0,0);

   465

				break;

   466

			}

   467

   468

			/* Check if the company has any value.. if not, declare it bankrupt

   469

			 *  right now */

   470

			val = CalculateCompanyValue(p);

   471

			if (val > 0) {

   472

				p->bankrupt_value = val;

   473

				p->bankrupt_asked = 1 << owner; // Don't ask the owner

   474

				p->bankrupt_timeout = 0;

   475

				break;

   476

			}

   477

			/* Else, falltrue to case 4... */

   478

		}

   479

		case 4: {

   480

			/* Close everything the owner has open */

   481

			DeletePlayerWindows(owner);

   482

   483

			/* Show bankrupt news */

   484

			SetDParam(0, p->name_1);

   485

			SetDParam(1, p->name_2);

   486

			AddNewsItem( (StringID)(owner | NB_BBANKRUPT), NEWS_FLAGS(NM_CALLBACK, 0, NT_COMPANY_INFO, DNC_BANKRUPCY),0,0);

   487

   488

			if (IsHumanPlayer(owner)) {

   489

				/* XXX - If we are in offline mode, leave the player playing. Eg. there

   490

				 * is no THE-END, otherwise mark the player as spectator to make sure

   491

				 * he/she is no long in control of this company */

   492

				if (!_networking) {

   493

					p->bankrupt_asked = 0xFF;