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

#include "group.h"

    42

    43

/* Score info */

    44

const ScoreInfo _score_info[] = {

    45

	{ SCORE_VEHICLES,        120, 100 },

    46

	{ SCORE_STATIONS,         80, 100 },

    47

	{ SCORE_MIN_PROFIT,    10000, 100 },

    48

	{ SCORE_MIN_INCOME,    50000,  50 },

    49

	{ SCORE_MAX_INCOME,   100000, 100 },

    50

	{ SCORE_DELIVERED,     40000, 400 },

    51

	{ SCORE_CARGO,             8,  50 },

    52

	{ SCORE_MONEY,      10000000,  50 },

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	{ SCORE_LOAN,         250000,  50 },

    54

	{ SCORE_TOTAL,             0,   0 }

    55

};

    56

    57

int _score_part[MAX_PLAYERS][SCORE_END];

    58

    59

int64 CalculateCompanyValue(const Player* p)

    60

{

    61

	PlayerID owner = p->index;

    62

	int64 value;

    63

    64

	{

    65

		Station *st;

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		uint num = 0;

    67

    68

		FOR_ALL_STATIONS(st) {

    69

			if (st->owner == owner) {

    70

				uint facil = st->facilities;

    71

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

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			}

    73

		}

    74

    75

		value = num * _price.station_value * 25;

    76

	}

    77

    78

	{

    79

		Vehicle *v;

    80

    81

		FOR_ALL_VEHICLES(v) {

    82

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

    83

    84

			if (v->type == VEH_TRAIN ||

    85

					v->type == VEH_ROAD ||

    86

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

    87

					v->type == VEH_SHIP) {

    88

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

    89

			}

    90

		}

    91

	}

    92

    93

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

    94

    95

	return max(value, 1LL);

    96

}

    97

    98

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

    99

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

   100

 * @param update the economy with calculated score

   101

 * @param p player been evaluated

   102

 * @return actual score of this player

   103

 * */

   104

int UpdateCompanyRatingAndValue(Player *p, bool update)

   105

{

   106

	byte owner = p->index;

   107

	int score = 0;

   108

   109

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

   110

   111

/* Count vehicles */

   112

	{

   113

		Vehicle *v;

   114

		int32 min_profit = 0;

   115

		bool min_profit_first = true;

   116

		uint num = 0;

   117

   118

		FOR_ALL_VEHICLES(v) {

   119

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

   120

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

   121

					 v->type == VEH_ROAD ||

   122

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

   123

					 v->type == VEH_SHIP) {

   124

				num++;

   125

				if (v->age > 730) {

   126

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

   127

					if (min_profit_first == true) {

   128

						min_profit = v->profit_last_year;

   129

						min_profit_first = false;

   130

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

   131

						min_profit = v->profit_last_year;

   132

					}

   133

				}

   134

			}

   135

		}

   136

   137

		_score_part[owner][SCORE_VEHICLES] = num;

   138

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

   139

		if (min_profit > 0)

   140

			_score_part[owner][SCORE_MIN_PROFIT] = min_profit;

   141

	}

   142

   143

/* Count stations */

   144

	{

   145

		uint num = 0;

   146

		const Station* st;

   147

   148

		FOR_ALL_STATIONS(st) {

   149

			if (st->owner == owner) {

   150

				int facil = st->facilities;

   151

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

   152

			}

   153

		}

   154

		_score_part[owner][SCORE_STATIONS] = num;

   155

	}

   156

   157

/* Generate statistics depending on recent income statistics */

   158

	{

   159

		const PlayerEconomyEntry* pee;

   160

		int numec;

   161

		int32 min_income;

   162

		int32 max_income;

   163

   164

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

   165

		if (numec != 0) {

   166

			min_income = 0x7FFFFFFF;

   167

			max_income = 0;

   168

			pee = p->old_economy;

   169

			do {

   170

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

   171

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

   172

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

   173

   174

			if (min_income > 0)

   175

				_score_part[owner][SCORE_MIN_INCOME] = min_income;

   176

   177

			_score_part[owner][SCORE_MAX_INCOME] = max_income;

   178

		}

   179

	}

   180

   181

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

   182

	{

   183

		const PlayerEconomyEntry* pee;

   184

		int numec;

   185

		uint32 total_delivered;

   186

   187

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

   188

		if (numec != 0) {

   189

			pee = p->old_economy;

   190

			total_delivered = 0;

   191

			do {

   192

				total_delivered += pee->delivered_cargo;

   193

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

   194

   195

			_score_part[owner][SCORE_DELIVERED] = total_delivered;

   196

		}

   197

	}

   198

   199

/* Generate score for variety of cargo */

   200

	{

   201

		uint cargo = p->cargo_types;

   202

		uint num = 0;

   203

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

   204

		_score_part[owner][SCORE_CARGO] = num;

   205

		if (update) p->cargo_types = 0;

   206

	}

   207

   208

/* Generate score for player money */

   209

	{

   210

		int32 money = p->player_money;

   211

		if (money > 0) {

   212

			_score_part[owner][SCORE_MONEY] = money;

   213

		}

   214

	}

   215

   216

/* Generate score for loan */

   217

	{

   218

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

   219

	}

   220

   221

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

   222

	{

   223

		int total_score = 0;

   224

		int s;

   225

		score = 0;

   226

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

   227

			/* Skip the total */

   228

			if (i == SCORE_TOTAL) continue;

   229

			/*  Check the score */

   230

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

   231

				_score_info[i].score :

   232

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

   233

			if (s < 0) s = 0;

   234

			score += s;

   235

			total_score += _score_info[i].score;

   236

		}

   237

   238

		_score_part[owner][SCORE_TOTAL] = score;

   239

   240

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

   241

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

   242

	}

   243

   244

	if (update) {

   245

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

   246

		UpdateCompanyHQ(p, score);

   247

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

   248

	}

   249

   250

	InvalidateWindow(WC_PERFORMANCE_DETAIL, 0);

   251

	return score;

   252

}

   253

   254

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

   255

void ChangeOwnershipOfPlayerItems(PlayerID old_player, PlayerID new_player)

   256

{

   257

	Town *t;

   258

	PlayerID old = _current_player;

   259

   260

	assert(old_player != new_player);

   261

   262

	{

   263

		Player *p;

   264

		uint i;

   265

   266

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

   267

		_current_player = old_player;

   268

		FOR_ALL_PLAYERS(p) {

   269

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

   270

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

   271

					/* Sell his shares */

   272

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

   273

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

   274

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

   275

					SubtractMoneyFromPlayer(res);

   276

				}

   277

			}

   278

		}

   279

   280

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

   281

		p = GetPlayer(old_player);

   282

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

   283

			_current_player = p->share_owners[i];

   284

			if (_current_player != PLAYER_SPECTATOR) {

   285

				/* Sell the shares */

   286

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

   287

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

   288

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

   289

				SubtractMoneyFromPlayer(res);

   290

			}

   291

		}

   292

	}

   293

   294

	_current_player = old_player;

   295

   296

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

   297

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

   298

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

   299

	if (new_player == PLAYER_SPECTATOR) {

   300

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

   301

		UpdatePlayerMoney32(GetPlayer(old_player));

   302

	}

   303

   304

	if (new_player == PLAYER_SPECTATOR) {

   305

		Subsidy *s;

   306

   307

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

   308

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

   309

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

   310

			}

   311

		}

   312

	}

   313

   314

	/* Take care of rating in towns */

   315

	FOR_ALL_TOWNS(t) {

   316

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

   317

		if (new_player != PLAYER_SPECTATOR) {

   318

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

   319

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

   320

					// use max of the two ratings.

   321

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

   322

				} else {

   323

					SETBIT(t->have_ratings, new_player);

   324

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

   325

				}

   326

			}

   327

		}

   328

   329

		/* Reset the ratings for the old player */

   330

		t->ratings[old_player] = 500;

   331

		CLRBIT(t->have_ratings, old_player);

   332

	}

   333

   334

	{

   335

		int num_train = 0;

   336

		int num_road = 0;

   337

		int num_ship = 0;

   338

		int num_aircraft = 0;

   339

		Vehicle *v;

   340

   341

		/*  Determine Ids for the new vehicles */

   342

		FOR_ALL_VEHICLES(v) {

   343

			if (v->owner == new_player) {

   344

				switch (v->type) {

   345

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

   346

					case VEH_ROAD:     num_road++; break;

   347

					case VEH_SHIP:     num_ship++; break;

   348

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

   349

					default: break;

   350

				}

   351

			}

   352

		}

   353

   354

		FOR_ALL_VEHICLES(v) {

   355

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

   356

				if (new_player == PLAYER_SPECTATOR) {

   357

					DeleteWindowById(WC_VEHICLE_VIEW, v->index);

   358

					DeleteWindowById(WC_VEHICLE_DETAILS, v->index);

   359

					DeleteWindowById(WC_VEHICLE_ORDERS, v->index);

   360

					DeleteVehicle(v);

   361

				} else {

   362

					v->owner = new_player;

   363

					v->group_id = DEFAULT_GROUP;

   364

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

   365

					switch (v->type) {

   366

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

   367

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

   368

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

   369

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

   370

						default: NOT_REACHED();

   371

					}

   372

				}

   373

			}

   374

		}

   375

	}

   376

   377

	/*  Change ownership of tiles */

   378

	{

   379

		TileIndex tile = 0;

   380

		do {

   381

			ChangeTileOwner(tile, old_player, new_player);

   382

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

   383

	}

   384

   385

	/* Change color of existing windows */

   386

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

   387

   388

	_current_player = old;

   389

   390

	MarkWholeScreenDirty();

   391

}

   392

   393

static void ChangeNetworkOwner(PlayerID current_player, PlayerID new_player)

   394

{

   395

#ifdef ENABLE_NETWORK

   396

	if (!_networking) return;

   397

   398

	if (current_player == _local_player) {

   399

		_network_playas = new_player;

   400

		SetLocalPlayer(new_player);

   401

	}

   402

   403

	if (!_network_server) return;

   404

   405

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

   406

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

   407

	NetworkTCPSocketHandler *cs;

   408

	NetworkClientInfo *ci = NetworkFindClientInfoFromIndex(NETWORK_SERVER_INDEX);

   409

   410

	/* The server has just changed from player */

   411

	if (current_player == ci->client_playas) {

   412

		ci->client_playas = new_player;

   413

		NetworkUpdateClientInfo(NETWORK_SERVER_INDEX);

   414

	}

   415

   416

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

   417

	FOR_ALL_CLIENTS(cs) {

   418

		ci = DEREF_CLIENT_INFO(cs);

   419

		if (current_player == ci->client_playas) {

   420

			ci->client_playas = new_player;

   421

			NetworkUpdateClientInfo(ci->client_index);

   422

		}

   423

	}

   424

#endif /* ENABLE_NETWORK */

   425

}

   426

   427

static void PlayersCheckBankrupt(Player *p)

   428

{

   429

	PlayerID owner;

   430

	int64 val;

   431

   432

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

   433

	if (p->player_money >= 0) {

   434

		p->quarters_of_bankrupcy = 0;

   435

		return;

   436

	}

   437

   438

	p->quarters_of_bankrupcy++;

   439

   440

	owner = p->index;

   441

   442

	switch (p->quarters_of_bankrupcy) {

   443

		case 2:

   444

			AddNewsItem( (StringID)(owner | NB_BTROUBLE),

   445

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

   446

			break;

   447

		case 3: {

   448

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

   449

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

   450

			if (IsHumanPlayer(owner)) {

   451

				AddNewsItem( (StringID)(owner | NB_BTROUBLE),

   452

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

   453

				break;

   454

			}

   455

   456

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

   457

			 *  right now */

   458

			val = CalculateCompanyValue(p);

   459

			if (val > 0) {

   460

				p->bankrupt_value = val;

   461

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

   462

				p->bankrupt_timeout = 0;

   463

				break;

   464

			}

   465

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

   466

		}

   467

		case 4: {

   468

			/* Close everything the owner has open */

   469

			DeletePlayerWindows(owner);

   470

   471

			/* Show bankrupt news */

   472

			SetDParam(0, p->name_1);

   473

			SetDParam(1, p->name_2);

   474

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

   475

   476

			if (IsHumanPlayer(owner)) {

   477

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

   478

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

   479

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

   480

				if (!_networking) {

   481

					p->bankrupt_asked = 0xFF;

   482

					p->bankrupt_timeout = 0x456;

   483

					break;

   484

				}

   485

   486

				ChangeNetworkOwner(owner, PLAYER_SPECTATOR);

   487

			}

   488

   489

			/* Remove the player */

   490

			ChangeOwnershipOfPlayerItems(owner, PLAYER_SPECTATOR);

   491

			/* Register the player as not-active */

   492

			p->is_active = false;

   493

   494

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