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"

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#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 },

    49

	{ 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

Money CalculateCompanyValue(const Player* p)

    61

{

    62

	PlayerID owner = p->index;

    63

	/* Do a little nasty by using CommandCost, so we can use the "overflow" protection of CommandCost */

    64

	CommandCost value;

    65

    66

	{

    67

		Station *st;

    68

		uint num = 0;

    69

    70

		FOR_ALL_STATIONS(st) {

    71

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

    72

		}

    73

    74

		value.AddCost(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)) ||

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					v->type == VEH_SHIP) {

    87

				value.AddCost(v->value * 3 >> 1);

    88

			}

    89

		}

    90

	}

    91

    92

	/* Add real money value */

    93

	value.AddCost(-p->current_loan);

    94

	value.AddCost(p->player_money);

    95

    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;

   121

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

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

   148

		}

   149

		_score_part[owner][SCORE_STATIONS] = num;

   150

	}

   151

   152

/* Generate statistics depending on recent income statistics */

   153

	{

   154

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

   155

		if (numec != 0) {

   156

			const PlayerEconomyEntry *pee = p->old_economy;

   157

			Money min_income = pee->income + pee->expenses;

   158

			Money max_income = pee->income + pee->expenses;

   159

   160

			do {

   161

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

   162

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

   163

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

   164

   165

			if (min_income > 0)

   166

				_score_part[owner][SCORE_MIN_INCOME] = min_income;

   167

   168

			_score_part[owner][SCORE_MAX_INCOME] = max_income;

   169

		}

   170

	}

   171

   172

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

   173

	{

   174

		const PlayerEconomyEntry* pee;

   175

		int numec;

   176

		uint32 total_delivered;

   177

   178

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

   179

		if (numec != 0) {

   180

			pee = p->old_economy;

   181

			total_delivered = 0;

   182

			do {

   183

				total_delivered += pee->delivered_cargo;

   184

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

   185

   186

			_score_part[owner][SCORE_DELIVERED] = total_delivered;

   187

		}

   188

	}

   189

   190

/* Generate score for variety of cargo */

   191

	{

   192

		uint num = CountBitsSet(p->cargo_types);

   193

		_score_part[owner][SCORE_CARGO] = num;

   194

		if (update) p->cargo_types = 0;

   195

	}

   196

   197

/* Generate score for player money */

   198

	{

   199

		int32 money = p->player_money;

   200

		if (money > 0) {

   201

			_score_part[owner][SCORE_MONEY] = money;

   202

		}

   203

	}

   204

   205

/* Generate score for loan */

   206

	{

   207

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

   208

	}

   209

   210

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

   211

	{

   212

		int total_score = 0;

   213

		int s;

   214

		score = 0;

   215

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

   216

			/* Skip the total */

   217

			if (i == SCORE_TOTAL) continue;

   218

			/*  Check the score */

   219

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

   220

				_score_info[i].score :

   221

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

   222

			if (s < 0) s = 0;

   223

			score += s;

   224

			total_score += _score_info[i].score;

   225

		}

   226

   227

		_score_part[owner][SCORE_TOTAL] = score;

   228

   229

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

   230

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

   231

	}

   232

   233

	if (update) {

   234

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

   235

		UpdateCompanyHQ(p, score);

   236

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

   237

	}

   238

   239

	InvalidateWindow(WC_PERFORMANCE_DETAIL, 0);

   240

	return score;

   241

}

   242

   243

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

   244

void ChangeOwnershipOfPlayerItems(PlayerID old_player, PlayerID new_player)

   245

{

   246

	Town *t;

   247

	PlayerID old = _current_player;

   248

   249

	assert(old_player != new_player);

   250

   251

	{

   252

		Player *p;

   253

		uint i;

   254

   255

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

   256

		_current_player = old_player;

   257

		FOR_ALL_PLAYERS(p) {

   258

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

   259

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

   260

					/* Sell his shares */

   261

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

   262

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

   263

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

   264

					SubtractMoneyFromPlayer(res);

   265

				}

   266

			}

   267

		}

   268

   269

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

   270

		p = GetPlayer(old_player);

   271

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

   272

			_current_player = p->share_owners[i];

   273

			if (_current_player != PLAYER_SPECTATOR) {

   274

				/* Sell the shares */

   275

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

   276

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

   277

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

   278

				SubtractMoneyFromPlayer(res);

   279

			}

   280

		}

   281

	}

   282

   283

	_current_player = old_player;

   284

   285

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

   286

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

   287

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

   288

	if (new_player == PLAYER_SPECTATOR) {

   289

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

   290

	}

   291

   292

	if (new_player == PLAYER_SPECTATOR) {

   293

		Subsidy *s;

   294

   295

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

   296

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

   297

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

   298

			}

   299

		}

   300

	}

   301

   302

	/* Take care of rating in towns */

   303

	FOR_ALL_TOWNS(t) {

   304

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

   305

		if (new_player != PLAYER_SPECTATOR) {

   306

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

   307

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

   308

					// use max of the two ratings.

   309

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

   310

				} else {

   311

					SETBIT(t->have_ratings, new_player);

   312

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

   313

				}

   314

			}

   315

		}

   316

   317

		/* Reset the ratings for the old player */

   318

		t->ratings[old_player] = 500;

   319

		CLRBIT(t->have_ratings, old_player);

   320

	}

   321

   322

	{

   323

		int num_train = 0;

   324

		int num_road = 0;

   325

		int num_ship = 0;

   326

		int num_aircraft = 0;

   327

		Vehicle *v;

   328

   329

		/*  Determine Ids for the new vehicles */

   330

		FOR_ALL_VEHICLES(v) {

   331

			if (v->owner == new_player) {

   332

				switch (v->type) {

   333

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

   334

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

   335

					case VEH_SHIP:     num_ship++; break;

   336

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

   337

					default: break;

   338

				}

   339

			}

   340

		}

   341

   342

		FOR_ALL_VEHICLES(v) {

   343

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

   344

				if (new_player == PLAYER_SPECTATOR) {

   345

					DeleteWindowById(WC_VEHICLE_VIEW, v->index);

   346

					DeleteWindowById(WC_VEHICLE_DETAILS, v->index);

   347

					DeleteWindowById(WC_VEHICLE_ORDERS, v->index);

   348

   349

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

   350

						switch (v->type) {

   351

							default: NOT_REACHED();

   352

   353

							case VEH_TRAIN: {

   354

								Vehicle *u = v;

   355

								do {

   356

									Vehicle *next = GetNextVehicle(u);

   357

									DeleteVehicle(u);

   358

									u = next;

   359

								} while (u != NULL);

   360

							} break;

   361

   362

							case VEH_ROAD:

   363

							case VEH_SHIP:

   364

								DeleteVehicle(v);

   365

								break;

   366

   367

							case VEH_AIRCRAFT:

   368

								DeleteVehicleChain(v);

   369

								break;

   370

						}

   371

					}

   372

				} else {

   373

					v->owner = new_player;

   374

					v->group_id = DEFAULT_GROUP;

   375

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

   376

					switch (v->type) {

   377

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

   378

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

   379

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

   380

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

   381

						default: NOT_REACHED();

   382

					}

   383

				}

   384

			}

   385

		}

   386

	}

   387

   388

	/*  Change ownership of tiles */

   389

	{

   390

		TileIndex tile = 0;

   391

		do {

   392

			ChangeTileOwner(tile, old_player, new_player);

   393

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

   394

	}

   395

   396

	/* Change color of existing windows */

   397

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

   398

   399

	_current_player = old;

   400

   401

	MarkWholeScreenDirty();

   402

}

   403

   404

static void ChangeNetworkOwner(PlayerID current_player, PlayerID new_player)

   405

{

   406

#ifdef ENABLE_NETWORK

   407

	if (!_networking) return;

   408

   409

	if (current_player == _local_player) {

   410

		_network_playas = new_player;

   411

		SetLocalPlayer(new_player);

   412

	}

   413

   414

	if (!_network_server) return;

   415

   416

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

   417

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

   418

	NetworkTCPSocketHandler *cs;

   419

	NetworkClientInfo *ci = NetworkFindClientInfoFromIndex(NETWORK_SERVER_INDEX);

   420

   421

	/* The server has just changed from player */

   422

	if (current_player == ci->client_playas) {

   423

		ci->client_playas = new_player;

   424

		NetworkUpdateClientInfo(NETWORK_SERVER_INDEX);

   425

	}

   426

   427

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

   428

	FOR_ALL_CLIENTS(cs) {

   429

		ci = DEREF_CLIENT_INFO(cs);

   430

		if (current_player == ci->client_playas) {

   431

			ci->client_playas = new_player;

   432

			NetworkUpdateClientInfo(ci->client_index);

   433

		}

   434

	}

   435

#endif /* ENABLE_NETWORK */

   436

}

   437

   438

static void PlayersCheckBankrupt(Player *p)

   439

{

   440

	PlayerID owner;

   441

	int64 val;

   442

   443

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

   444

	if (p->player_money >= 0) {

   445

		p->quarters_of_bankrupcy = 0;

   446

		return;

   447

	}

   448

   449

	p->quarters_of_bankrupcy++;

   450

   451

	owner = p->index;

   452

   453

	switch (p->quarters_of_bankrupcy) {

   454

		case 2:

   455

			AddNewsItem( (StringID)(owner | NB_BTROUBLE),

   456

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

   457

			break;

   458

		case 3: {

   459

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

   460

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

   461

			if (IsHumanPlayer(owner)) {

   462

				AddNewsItem( (StringID)(owner | NB_BTROUBLE),

   463

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

   464

				break;

   465

			}

   466

   467

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

   468

			 *  right now */

   469

			val = CalculateCompanyValue(p);

   470

			if (val > 0) {

   471

				p->bankrupt_value = val;

   472

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

   473

				p->bankrupt_timeout = 0;

   474

				break;

   475

			}

   476

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

   477

		}

   478

		case 4: {

   479

			/* Close everything the owner has open */

   480

			DeletePlayerWindows(owner);

   481

   482

			/* Show bankrupt news */

   483

			SetDParam(0, p->name_1);

   484

			SetDParam(1, p->name_2);

   485

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

   486

   487

			if (IsHumanPlayer(owner)) {

   488

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

   489

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

   490

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

   491

				if (!_networking) {

   492

					p->bankrupt_asked = 0xFF;

   493

					p->bankrupt_timeout = 0x456;