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 "aircraft.h"

    34

#include "newgrf_engine.h"

    35

#include "newgrf_sound.h"

    36

#include "newgrf_callbacks.h"

    37

#include "unmovable.h"

    38

#include "date.h"

    39

#include "cargotype.h"

    40

#include "player_face.h"

    41

    42

/* Score info */

    43

const ScoreInfo _score_info[] = {

    44

	{ SCORE_VEHICLES,        120, 100 },

    45

	{ SCORE_STATIONS,         80, 100 },

    46

	{ SCORE_MIN_PROFIT,    10000, 100 },

    47

	{ SCORE_MIN_INCOME,    50000,  50 },

    48

	{ SCORE_MAX_INCOME,   100000, 100 },

    49

	{ SCORE_DELIVERED,     40000, 400 },

    50

	{ SCORE_CARGO,             8,  50 },

    51

	{ SCORE_MONEY,      10000000,  50 },

    52

	{ SCORE_LOAN,         250000,  50 },

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	{ SCORE_TOTAL,             0,   0 }

    54

};

    55

    56

int _score_part[MAX_PLAYERS][SCORE_END];

    57

    58

int64 CalculateCompanyValue(const Player* p)

    59

{

    60

	PlayerID owner = p->index;

    61

	int64 value;

    62

    63

	{

    64

		Station *st;

    65

		uint num = 0;

    66

    67

		FOR_ALL_STATIONS(st) {

    68

			if (st->owner == owner) {

    69

				uint facil = st->facilities;

    70

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

    71

			}

    72

		}

    73

    74

		value = num * _price.station_value * 25;

    75

	}

    76

    77

	{

    78

		Vehicle *v;

    79

    80

		FOR_ALL_VEHICLES(v) {

    81

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

    82

    83

			if (v->type == VEH_TRAIN ||

    84

					v->type == VEH_ROAD ||

    85

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

    86

					v->type == VEH_SHIP) {

    87

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

    88

			}

    89

		}

    90

	}

    91

    92

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

    93

    94

	return max(value, 1LL);

    95

}

    96

    97

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

    98

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

    99

 * @param update the economy with calculated score

   100

 * @param p player been evaluated

   101

 * @return actual score of this player

   102

 * */

   103

int UpdateCompanyRatingAndValue(Player *p, bool update)

   104

{

   105

	byte owner = p->index;

   106

	int score = 0;

   107

   108

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

   109

   110

/* Count vehicles */

   111

	{

   112

		Vehicle *v;

   113

		int32 min_profit = 0;

   114

		bool min_profit_first = true;

   115

		uint num = 0;

   116

   117

		FOR_ALL_VEHICLES(v) {

   118

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

   119

			if ((v->type == VEH_TRAIN && IsFrontEngine(v)) ||

   120

					 v->type == VEH_ROAD ||

   121

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

   122

					 v->type == VEH_SHIP) {

   123

				num++;

   124

				if (v->age > 730) {

   125

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

   126

					if (min_profit_first == true) {

   127

						min_profit = v->profit_last_year;

   128

						min_profit_first = false;

   129

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

   130

						min_profit = v->profit_last_year;

   131

					}

   132

				}

   133

			}

   134

		}

   135

   136

		_score_part[owner][SCORE_VEHICLES] = num;

   137

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

   138

		if (min_profit > 0)

   139

			_score_part[owner][SCORE_MIN_PROFIT] = min_profit;

   140

	}

   141

   142

/* Count stations */

   143

	{

   144

		uint num = 0;

   145

		const Station* st;

   146

   147

		FOR_ALL_STATIONS(st) {

   148

			if (st->owner == owner) {

   149

				int facil = st->facilities;

   150

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

   151

			}

   152

		}

   153

		_score_part[owner][SCORE_STATIONS] = num;

   154

	}

   155

   156

/* Generate statistics depending on recent income statistics */

   157

	{

   158

		const PlayerEconomyEntry* pee;

   159

		int numec;

   160

		int32 min_income;

   161

		int32 max_income;

   162

   163

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

   164

		if (numec != 0) {

   165

			min_income = 0x7FFFFFFF;

   166

			max_income = 0;

   167

			pee = p->old_economy;

   168

			do {

   169

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

   170

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

   171

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

   172

   173

			if (min_income > 0)

   174

				_score_part[owner][SCORE_MIN_INCOME] = min_income;

   175

   176

			_score_part[owner][SCORE_MAX_INCOME] = max_income;

   177

		}

   178

	}

   179

   180

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

   181

	{

   182

		const PlayerEconomyEntry* pee;

   183

		int numec;

   184

		uint32 total_delivered;

   185

   186

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

   187

		if (numec != 0) {

   188

			pee = p->old_economy;

   189

			total_delivered = 0;

   190

			do {

   191

				total_delivered += pee->delivered_cargo;

   192

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

   193

   194

			_score_part[owner][SCORE_DELIVERED] = total_delivered;

   195

		}

   196

	}

   197

   198

/* Generate score for variety of cargo */

   199

	{

   200

		uint cargo = p->cargo_types;

   201

		uint num = 0;

   202

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

   203

		_score_part[owner][SCORE_CARGO] = num;

   204

		if (update) p->cargo_types = 0;

   205

	}

   206

   207

/* Generate score for player money */

   208

	{

   209

		int32 money = p->player_money;

   210

		if (money > 0) {

   211

			_score_part[owner][SCORE_MONEY] = money;

   212

		}

   213

	}

   214

   215

/* Generate score for loan */

   216

	{

   217

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

   218

	}

   219

   220

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

   221

	{

   222

		int total_score = 0;

   223

		int s;

   224

		score = 0;

   225

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

   226

			/* Skip the total */

   227

			if (i == SCORE_TOTAL) continue;

   228

			/*  Check the score */

   229

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

   230

				_score_info[i].score :

   231

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

   232

			if (s < 0) s = 0;

   233

			score += s;

   234

			total_score += _score_info[i].score;

   235

		}

   236

   237

		_score_part[owner][SCORE_TOTAL] = score;

   238

   239

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

   240

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

   241

	}

   242

   243

	if (update) {

   244

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

   245

		UpdateCompanyHQ(p, score);

   246

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

   247

	}

   248

   249

	InvalidateWindow(WC_PERFORMANCE_DETAIL, 0);

   250

	return score;

   251

}

   252

   253

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

   254

void ChangeOwnershipOfPlayerItems(PlayerID old_player, PlayerID new_player)

   255

{

   256

	Town *t;

   257

	PlayerID old = _current_player;

   258

   259

	assert(old_player != new_player);

   260

   261

	{

   262

		Player *p;

   263

		uint i;

   264

   265

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

   266

		_current_player = old_player;

   267

		FOR_ALL_PLAYERS(p) {

   268

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

   269

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

   270

					/* Sell his shares */

   271

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

   272

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

   273

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

   274

					SubtractMoneyFromPlayer(res);

   275

				}

   276

			}

   277

		}

   278

   279

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

   280

		p = GetPlayer(old_player);

   281

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

   282

			_current_player = p->share_owners[i];

   283

			if (_current_player != PLAYER_SPECTATOR) {

   284

				/* Sell the shares */

   285

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

   286

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

   287

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

   288

				SubtractMoneyFromPlayer(res);

   289

			}

   290

		}

   291

	}

   292

   293

	_current_player = old_player;

   294

   295

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

   296

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

   297

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

   298

	if (new_player == PLAYER_SPECTATOR) {

   299

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

   300

		UpdatePlayerMoney32(GetPlayer(old_player));

   301

	}

   302

   303

	if (new_player == PLAYER_SPECTATOR) {

   304

		Subsidy *s;

   305

   306

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

   307

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

   308

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

   309

			}

   310

		}

   311

	}

   312

   313

	/* Take care of rating in towns */

   314

	FOR_ALL_TOWNS(t) {

   315

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

   316

		if (new_player != PLAYER_SPECTATOR) {

   317

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

   318

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

   319

					// use max of the two ratings.

   320

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

   321

				} else {

   322

					SETBIT(t->have_ratings, new_player);

   323

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

   324

				}

   325

			}

   326

		}

   327

   328

		/* Reset the ratings for the old player */

   329

		t->ratings[old_player] = 500;

   330

		CLRBIT(t->have_ratings, old_player);

   331

	}

   332

   333

	{

   334

		int num_train = 0;

   335

		int num_road = 0;

   336

		int num_ship = 0;

   337

		int num_aircraft = 0;

   338

		Vehicle *v;

   339

   340

		/*  Determine Ids for the new vehicles */

   341

		FOR_ALL_VEHICLES(v) {

   342

			if (v->owner == new_player) {

   343

				switch (v->type) {

   344

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

   345

					case VEH_ROAD:     num_road++; break;

   346

					case VEH_SHIP:     num_ship++; break;

   347

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

   348

					default: break;

   349

				}

   350

			}

   351

		}

   352

   353

		FOR_ALL_VEHICLES(v) {

   354

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

   355

				if (new_player == PLAYER_SPECTATOR) {

   356

					DeleteWindowById(WC_VEHICLE_VIEW, v->index);

   357

					DeleteWindowById(WC_VEHICLE_DETAILS, v->index);

   358

					DeleteWindowById(WC_VEHICLE_ORDERS, v->index);

   359

					DeleteVehicle(v);

   360

				} else {

   361

					v->owner = new_player;

   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;

   365

						case VEH_ROAD:     v->unitnumber = ++num_road; break;

   366

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

   367

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

   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

		}

   495