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 },

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	{ SCORE_DELIVERED,     40000, 400 },

    52

	{ SCORE_CARGO,             8,  50 },

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	{ SCORE_MONEY,      10000000,  50 },

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	{ SCORE_LOAN,         250000,  50 },

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	{ 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

    91

	value += p->money64 - p->current_loan; // add real money value

    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 */

   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 */

   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) {

   290

		GetPlayer(old_player)->money64 = MAX_UVALUE(uint64) >>2; // jackpot ;p

   291

		UpdatePlayerMoney32(GetPlayer(old_player));

   292

	}

   293

   294

	if (new_player == PLAYER_SPECTATOR) {

   295

		Subsidy *s;

   296

   297

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

   298

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

   299

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

   300

			}

   301

		}

   302

	}

   303

   304

	/* Take care of rating in towns */

   305

	FOR_ALL_TOWNS(t) {

   306

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

   307

		if (new_player != PLAYER_SPECTATOR) {

   308

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

   309

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

   310

					// use max of the two ratings.

   311

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

   312

				} else {

   313

					SETBIT(t->have_ratings, new_player);

   314

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

   315

				}

   316

			}

   317

		}

   318

   319

		/* Reset the ratings for the old player */

   320

		t->ratings[old_player] = 500;

   321

		CLRBIT(t->have_ratings, old_player);

   322

	}

   323

   324

	{

   325

		int num_train = 0;

   326

		int num_road = 0;

   327

		int num_ship = 0;

   328

		int num_aircraft = 0;

   329

		Vehicle *v;

   330

   331

		/*  Determine Ids for the new vehicles */

   332

		FOR_ALL_VEHICLES(v) {

   333

			if (v->owner == new_player) {

   334

				switch (v->type) {

   335

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

   336

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

   337

					case VEH_SHIP:     num_ship++; break;

   338

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

   339

					default: break;

   340

				}

   341

			}

   342

		}

   343

   344

		FOR_ALL_VEHICLES(v) {

   345

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

   346

				if (new_player == PLAYER_SPECTATOR) {

   347

					DeleteWindowById(WC_VEHICLE_VIEW, v->index);

   348

					DeleteWindowById(WC_VEHICLE_DETAILS, v->index);

   349

					DeleteWindowById(WC_VEHICLE_ORDERS, v->index);

   350

   351

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

   352

						switch (v->type) {

   353

							default: NOT_REACHED();

   354

   355

							case VEH_TRAIN: {

   356

								Vehicle *u = v;

   357

								do {

   358

									Vehicle *next = GetNextVehicle(u);

   359

									DeleteVehicle(u);

   360

									u = next;

   361

								} while (u != NULL);

   362

							} break;

   363

   364

							case VEH_ROAD:

   365

							case VEH_SHIP:

   366

								DeleteVehicle(v);

   367

								break;

   368

   369

							case VEH_AIRCRAFT:

   370

								DeleteVehicleChain(v);

   371

								break;

   372

						}

   373

					}

   374

				} else {

   375

					v->owner = new_player;

   376

					v->group_id = DEFAULT_GROUP;

   377

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

   378

					switch (v->type) {

   379

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

   380

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

   381

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

   382

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

   383

						default: NOT_REACHED();

   384

					}

   385

				}

   386

			}

   387

		}

   388

	}

   389

   390

	/*  Change ownership of tiles */

   391

	{

   392

		TileIndex tile = 0;

   393

		do {

   394

			ChangeTileOwner(tile, old_player, new_player);

   395

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

   396

	}

   397

   398

	/* Change color of existing windows */

   399

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

   400

   401

	_current_player = old;

   402

   403

	MarkWholeScreenDirty();

   404

}

   405

   406

static void ChangeNetworkOwner(PlayerID current_player, PlayerID new_player)

   407

{

   408

#ifdef ENABLE_NETWORK

   409

	if (!_networking) return;

   410

   411

	if (current_player == _local_player) {

   412

		_network_playas = new_player;

   413

		SetLocalPlayer(new_player);

   414

	}

   415

   416

	if (!_network_server) return;

   417

   418

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

   419

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

   420

	NetworkTCPSocketHandler *cs;

   421

	NetworkClientInfo *ci = NetworkFindClientInfoFromIndex(NETWORK_SERVER_INDEX);

   422

   423

	/* The server has just changed from player */

   424

	if (current_player == ci->client_playas) {

   425

		ci->client_playas = new_player;

   426

		NetworkUpdateClientInfo(NETWORK_SERVER_INDEX);

   427

	}

   428

   429

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

   430

	FOR_ALL_CLIENTS(cs) {

   431

		ci = DEREF_CLIENT_INFO(cs);

   432

		if (current_player == ci->client_playas) {

   433

			ci->client_playas = new_player;

   434

			NetworkUpdateClientInfo(ci->client_index);

   435

		}

   436

	}

   437

#endif /* ENABLE_NETWORK */

   438

}

   439

   440

static void PlayersCheckBankrupt(Player *p)

   441

{

   442

	PlayerID owner;

   443

	int64 val;

   444

   445

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

   446

	if (p->player_money >= 0) {

   447

		p->quarters_of_bankrupcy = 0;

   448

		return;

   449

	}

   450

   451

	p->quarters_of_bankrupcy++;

   452

   453

	owner = p->index;

   454

   455

	switch (p->quarters_of_bankrupcy) {

   456

		case 2:

   457

			AddNewsItem( (StringID)(owner | NB_BTROUBLE),

   458

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

   459

			break;

   460

		case 3: {

   461

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

   462

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

   463

			if (IsHumanPlayer(owner)) {

   464

				AddNewsItem( (StringID)(owner | NB_BTROUBLE),

   465

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

   466

				break;

   467

			}

   468

   469

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

   470

			 *  right now */

   471

			val = CalculateCompanyValue(p);

   472

			if (val > 0) {

   473

				p->bankrupt_value = val;

   474

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

   475

				p->bankrupt_timeout = 0;

   476

				break;

   477

			}

   478

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

   479

		}

   480

		case 4: {

   481

			/* Close everything the owner has open */

   482

			DeletePlayerWindows(owner);

   483

   484

			/* Show bankrupt news */

   485

			SetDParam(0, p->name_1);

   486

			SetDParam(1, p->name_2);

   487

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

   488

   489

			if (IsHumanPlayer(owner)) {

   490

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

   491

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

   492

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

   493

				if (!_networking) {