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"

    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 },

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	{ 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 },

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	{ 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;

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		uint num = 0;

    68

    69

		FOR_ALL_STATIONS(st) {

    70

			if (st->owner == owner) {

    71

				uint facil = st->facilities;

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				do num += (facil&1); while (facil >>= 1);

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			}

    74

		}

    75

    76

		value = num * _eco->GetPrice(CEconomy::STATION_VALUE) * 25;

    77

	}

    78

    79

	{

    80

		Vehicle *v;

    81

    82

		FOR_ALL_VEHICLES(v) {

    83

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

    84

    85

			if (v->type == VEH_TRAIN ||

    86

					v->type == VEH_ROAD ||

    87

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

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					v->type == VEH_SHIP) {

    89

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

    90

			}

    91

		}

    92

	}

    93

    94

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

    95

    96

	return max(value, 1LL);

    97

}

    98

    99

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

   100

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

   101

 * @param update the economy with calculated score

   102

 * @param p player been evaluated

   103

 * @return actual score of this player

   104

 * */

   105

int UpdateCompanyRatingAndValue(Player *p, bool update)

   106

{

   107

	byte owner = p->index;

   108

	int score = 0;

   109

   110

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

   111

   112

/* Count vehicles */

   113

	{

   114

		Vehicle *v;

   115

		int32 min_profit = 0;

   116

		bool min_profit_first = true;

   117

		uint num = 0;

   118

   119

		FOR_ALL_VEHICLES(v) {

   120

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

   122

				num++;

   123

				if (v->age > 730) {

   124

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

   125

					if (min_profit_first == true) {

   126

						min_profit = v->profit_last_year;

   127

						min_profit_first = false;

   128

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

   129

						min_profit = v->profit_last_year;

   130

					}

   131

				}

   132

			}

   133

		}

   134

   135

		_score_part[owner][SCORE_VEHICLES] = num;

   136

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

   137

		if (min_profit > 0)

   138

			_score_part[owner][SCORE_MIN_PROFIT] = min_profit;

   139

	}

   140

   141

/* Count stations */

   142

	{

   143

		uint num = 0;

   144

		const Station* st;

   145

   146

		FOR_ALL_STATIONS(st) {

   147

			if (st->owner == owner) {

   148

				int facil = st->facilities;

   149

				do num += facil&1; while (facil>>=1);

   150

			}

   151

		}

   152

		_score_part[owner][SCORE_STATIONS] = num;

   153

	}

   154

   155

/* Generate statistics depending on recent income statistics */

   156

	{

   157

		const PlayerEconomyEntry* pee;

   158

		int numec;

   159

		int32 min_income;

   160

		int32 max_income;

   161

   162

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

   163

		if (numec != 0) {

   164

			min_income = 0x7FFFFFFF;

   165

			max_income = 0;

   166

			pee = p->old_economy;

   167

			do {

   168

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

   169

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

   170

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

   171

   172

			if (min_income > 0)

   173

				_score_part[owner][SCORE_MIN_INCOME] = min_income;

   174

   175

			_score_part[owner][SCORE_MAX_INCOME] = max_income;

   176

		}

   177

	}

   178

   179

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

   180

	{

   181

		const PlayerEconomyEntry* pee;

   182

		int numec;

   183

		uint32 total_delivered;

   184

   185

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

   186

		if (numec != 0) {

   187

			pee = p->old_economy;

   188

			total_delivered = 0;

   189

			do {

   190

				total_delivered += pee->delivered_cargo;

   191

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

   192

   193

			_score_part[owner][SCORE_DELIVERED] = total_delivered;

   194

		}

   195

	}

   196

   197

/* Generate score for variety of cargo */

   198

	{

   199

		uint cargo = p->cargo_types;

   200

		uint num = 0;

   201

		do num += cargo&1; while (cargo>>=1);

   202

		_score_part[owner][SCORE_CARGO] = num;

   203

		if (update) p->cargo_types = 0;

   204

	}

   205

   206

/* Generate score for player money */

   207

	{

   208

		int32 money = p->player_money;

   209

		if (money > 0) {

   210

			_score_part[owner][SCORE_MONEY] = money;

   211

		}

   212

	}

   213

   214

/* Generate score for loan */

   215

	{

   216

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

   217

	}

   218

   219

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

   220

	{

   221

		int total_score = 0;

   222

		int s;

   223

		score = 0;

   224

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

   225

			/* Skip the total */

   226

			if (i == SCORE_TOTAL) continue;

   227

			/*  Check the score */

   228

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

   229

				_score_info[i].score :

   230

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

   231

			if (s < 0) s = 0;

   232

			score += s;

   233

			total_score += _score_info[i].score;

   234

		}

   235

   236

		_score_part[owner][SCORE_TOTAL] = score;

   237

   238

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

   239

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

   240

	}

   241

   242

	if (update) {

   243

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

   244

		UpdateCompanyHQ(p, score);

   245

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

   246

	}

   247

   248

	InvalidateWindow(WC_PERFORMANCE_DETAIL, 0);

   249

	return score;

   250

}

   251

   252

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

   253

void ChangeOwnershipOfPlayerItems(PlayerID old_player, PlayerID new_player)

   254

{

   255

	Town *t;

   256

	PlayerID old = _current_player;

   257

   258

	assert(old_player != new_player);

   259

   260

	{

   261

		Player *p;

   262

		uint i;

   263

   264

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

   265

		_current_player = old_player;

   266

		FOR_ALL_PLAYERS(p) {

   267

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

   268

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

   269

					/* Sell his shares */

   270

					int32 res = DoCommand(0, p->index, 0, DC_EXEC, CMD_SELL_SHARE_IN_COMPANY);

   271

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

   272

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

   273

					SubtractMoneyFromPlayer(res);

   274

				}

   275

			}

   276

		}

   277

   278

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

   279

		p = GetPlayer(old_player);

   280

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

   281

			_current_player = p->share_owners[i];

   282

			if (_current_player != PLAYER_SPECTATOR) {

   283

				/* Sell the shares */

   284

				int32 res = DoCommand(0, old_player, 0, DC_EXEC, CMD_SELL_SHARE_IN_COMPANY);

   285

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

   286

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

   287

				SubtractMoneyFromPlayer(res);

   288

			}

   289

		}

   290

	}

   291

   292

	_current_player = old_player;

   293

   294

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

   295

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

   296

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

   297

	if (new_player == PLAYER_SPECTATOR) {

   298

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

   299

		UpdatePlayerMoney32(GetPlayer(old_player));

   300

	}

   301

   302

	if (new_player == PLAYER_SPECTATOR) {

   303

		Subsidy *s;

   304

   305

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

   306

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

   307

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

   308

			}

   309

		}

   310

	}

   311

   312

	/* Take care of rating in towns */

   313

	FOR_ALL_TOWNS(t) {

   314

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

   315

		if (new_player != PLAYER_SPECTATOR) {

   316

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

   317

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

   318

					// use max of the two ratings.

   319

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

   320

				} else {

   321

					SETBIT(t->have_ratings, new_player);

   322

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

   323

				}

   324

			}

   325

		}

   326

   327

		/* Reset the ratings for the old player */

   328

		t->ratings[old_player] = 500;

   329

		CLRBIT(t->have_ratings, old_player);

   330

	}

   331

   332

	{

   333

		int num_train = 0;

   334

		int num_road = 0;

   335

		int num_ship = 0;

   336

		int num_aircraft = 0;

   337

		Vehicle *v;

   338

   339

		/*  Determine Ids for the new vehicles */

   340

		FOR_ALL_VEHICLES(v) {

   341

			if (v->owner == new_player) {

   342

				switch (v->type) {

   343

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

   345

					case VEH_SHIP:     num_ship++; break;

   346

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

   347

					default: break;

   348

				}

   349

			}

   350

		}

   351

   352

		FOR_ALL_VEHICLES(v) {

   353

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

   354

				if (new_player == PLAYER_SPECTATOR) {

   355

					DeleteWindowById(WC_VEHICLE_VIEW, v->index);

   356

					DeleteWindowById(WC_VEHICLE_DETAILS, v->index);

   357

					DeleteWindowById(WC_VEHICLE_ORDERS, v->index);

   358

					DeleteVehicle(v);

   359

				} else {

   360

					v->owner = new_player;

   361

					v->group_id = DEFAULT_GROUP;

   362

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

   363

					switch (v->type) {

   364

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

   366

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

   367

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

   368

						default: NOT_REACHED();

   369

					}

   370

				}

   371

			}

   372

		}

   373

	}

   374

   375

	/*  Change ownership of tiles */

   376

	{

   377

		TileIndex tile = 0;

   378

		do {

   379

			ChangeTileOwner(tile, old_player, new_player);

   380

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

   381

	}

   382

   383

	/* Change color of existing windows */

   384

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

   385

   386

	_current_player = old;

   387

   388

	MarkWholeScreenDirty();

   389

}

   390

   391

static void ChangeNetworkOwner(PlayerID current_player, PlayerID new_player)

   392

{

   393

#ifdef ENABLE_NETWORK

   394

	if (!_networking) return;

   395

   396

	if (current_player == _local_player) {

   397

		_network_playas = new_player;

   398

		SetLocalPlayer(new_player);

   399

	}

   400

   401

	if (!_network_server) return;

   402

   403

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

   404

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

   405

	NetworkTCPSocketHandler *cs;

   406

	NetworkClientInfo *ci = NetworkFindClientInfoFromIndex(NETWORK_SERVER_INDEX);

   407

   408

	/* The server has just changed from player */

   409

	if (current_player == ci->client_playas) {

   410

		ci->client_playas = new_player;

   411

		NetworkUpdateClientInfo(NETWORK_SERVER_INDEX);

   412

	}

   413

   414

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

   415

	FOR_ALL_CLIENTS(cs) {

   416

		ci = DEREF_CLIENT_INFO(cs);

   417

		if (current_player == ci->client_playas) {

   418

			ci->client_playas = new_player;

   419

			NetworkUpdateClientInfo(ci->client_index);

   420

		}

   421

	}

   422

#endif /* ENABLE_NETWORK */

   423

}

   424

   425

static void PlayersCheckBankrupt(Player *p)

   426

{

   427

	PlayerID owner;

   428

	int64 val;

   429

   430

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

   431

	if (p->player_money >= 0) {

   432

		p->quarters_of_bankrupcy = 0;

   433

		return;

   434

	}

   435

   436

	p->quarters_of_bankrupcy++;

   437

   438

	owner = p->index;

   439

   440

	switch (p->quarters_of_bankrupcy) {

   441

		case 2:

   442

			AddNewsItem( (StringID)(owner | NB_BTROUBLE),

   443

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

   444

			break;

   445

		case 3: {

   446

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

   447

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

   448

			if (IsHumanPlayer(owner)) {

   449

				AddNewsItem( (StringID)(owner | NB_BTROUBLE),

   450

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

   451

				break;

   452

			}

   453

   454

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

   455

			 *  right now */

   456

			val = CalculateCompanyValue(p);

   457

			if (val > 0) {

   458

				p->bankrupt_value = val;

   459

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

   460

				p->bankrupt_timeout = 0;

   461

				break;

   462

			}

   463

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

   464

		}

   465

		case 4: {

   466

			/* Close everything the owner has open */

   467

			DeletePlayerWindows(owner);

   468

   469

			/* Show bankrupt news */

   470

			SetDParam(0, p->name_1);

   471

			SetDParam(1, p->name_2);

   472

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

   473

   474

			if (IsHumanPlayer(owner)) {

   475

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

   476

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

   477

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

   478

				if (!_networking) {

   479

					p->bankrupt_asked = 0xFF;

   480

					p->bankrupt_timeout = 0x456;

   481

					break;

   482

				}

   483

   484

				ChangeNetworkOwner(owner, PLAYER_SPECTATOR);

   485

			}

   486

   487

			/* Remove the player */

   488

			ChangeOwnershipOfPlayerItems(owner, PLAYER_SPECTATOR);

   489

			/* Register the player as not-active */

   490

			p->is_active = false;

   491

   492

			if (!IsHumanPlayer(owner) && (!_networking || _network_server) && _ai.enabled)

   493

				AI_PlayerDied(owner);

   494

		}