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 "newgrf_industries.h"

    39

#include "newgrf_industrytiles.h"

    40

#include "unmovable.h"

    41

#include "date.h"

    42

#include "cargotype.h"

    43

#include "player_face.h"

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#include "group.h"

    45

    46

/* Score info */

    47

const ScoreInfo _score_info[] = {

    48

	{ SCORE_VEHICLES,        120, 100 },

    49

	{ SCORE_STATIONS,         80, 100 },

    50

	{ SCORE_MIN_PROFIT,    10000, 100 },

    51

	{ SCORE_MIN_INCOME,    50000,  50 },

    52

	{ 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 }

    58

};

    59

    60

int _score_part[MAX_PLAYERS][SCORE_END];

    61

    62

Money CalculateCompanyValue(const Player* p)

    63

{

    64

	PlayerID owner = p->index;

    65

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

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	Money value = 0;

    67

    68

	Station *st;

    69

	uint num = 0;

    70

    71

	FOR_ALL_STATIONS(st) {

    72

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

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	}

    74

    75

	value += num * _price.station_value * 25;

    76

    77

	Vehicle *v;

    78

	FOR_ALL_VEHICLES(v) {

    79

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

    80

    81

		if (v->type == VEH_TRAIN ||

    82

				v->type == VEH_ROAD ||

    83

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

    84

				v->type == VEH_SHIP) {

    85

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

    86

		}

    87

	}

    88

    89

	/* Add real money value */

    90

	value -= p->current_loan;

    91

	value += p->player_money;

    92

    93

	return max(value, (Money)1);

    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

		Money 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] = ClampToI32(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 += CountBits(st->facilities);

   145

		}

   146

		_score_part[owner][SCORE_STATIONS] = num;

   147

	}

   148

   149

/* Generate statistics depending on recent income statistics */

   150

	{

   151

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

   152

		if (numec != 0) {

   153

			const PlayerEconomyEntry *pee = p->old_economy;

   154

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

   155

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

   156

   157

			do {

   158

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

   159

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

   160

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

   161

   162

			if (min_income > 0)

   163

				_score_part[owner][SCORE_MIN_INCOME] = ClampToI32(min_income);

   164

   165

			_score_part[owner][SCORE_MAX_INCOME] = ClampToI32(max_income);

   166

		}

   167

	}

   168

   169

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

   170

	{

   171

		const PlayerEconomyEntry* pee;

   172

		int numec;

   173

		uint32 total_delivered;

   174

   175

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

   176

		if (numec != 0) {

   177

			pee = p->old_economy;

   178

			total_delivered = 0;

   179

			do {

   180

				total_delivered += pee->delivered_cargo;

   181

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

   182

   183

			_score_part[owner][SCORE_DELIVERED] = total_delivered;

   184

		}

   185

	}

   186

   187

/* Generate score for variety of cargo */

   188

	{

   189

		uint num = CountBits(p->cargo_types);

   190

		_score_part[owner][SCORE_CARGO] = num;

   191

		if (update) p->cargo_types = 0;

   192

	}

   193

   194

/* Generate score for player money */

   195

	{

   196

		if (p->player_money > 0) {

   197

			_score_part[owner][SCORE_MONEY] = ClampToI32(p->player_money);

   198

		}

   199

	}

   200

   201

/* Generate score for loan */

   202

	{

   203

		_score_part[owner][SCORE_LOAN] = ClampToI32(_score_info[SCORE_LOAN].needed - p->current_loan);

   204

	}

   205

   206

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

   207

	{

   208

		int total_score = 0;

   209

		int s;

   210

		score = 0;

   211

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

   212

			/* Skip the total */

   213

			if (i == SCORE_TOTAL) continue;

   214

			/*  Check the score */

   216

			score += s;

   217

			total_score += _score_info[i].score;

   218

		}

   219

   220

		_score_part[owner][SCORE_TOTAL] = score;

   221

   222

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

   223

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

   224

	}

   225

   226

	if (update) {

   227

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

   228

		UpdateCompanyHQ(p, score);

   229

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

   230

	}

   231

   232

	InvalidateWindow(WC_PERFORMANCE_DETAIL, 0);

   233

	return score;

   234

}

   235

   236

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

   237

void ChangeOwnershipOfPlayerItems(PlayerID old_player, PlayerID new_player)

   238

{

   239

	Town *t;

   240

	PlayerID old = _current_player;

   241

   242

	assert(old_player != new_player);

   243

   244

	{

   245

		Player *p;

   246

		uint i;

   247

   248

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

   249

		_current_player = old_player;

   250

		FOR_ALL_PLAYERS(p) {

   251

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

   252

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

   253

					/* Sell his shares */

   254

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

   255

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

   256

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

   257

					SubtractMoneyFromPlayer(res);

   258

				}

   259

			}

   260

		}

   261

   262

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

   263

		p = GetPlayer(old_player);

   264

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

   265

			_current_player = p->share_owners[i];

   266

			if (_current_player != PLAYER_SPECTATOR) {

   267

				/* Sell the shares */

   268

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

   269

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

   270

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

   271

				SubtractMoneyFromPlayer(res);

   272

			}

   273

		}

   274

	}

   275

   276

	_current_player = old_player;

   277

   278

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

   279

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

   280

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

   281

	if (new_player == PLAYER_SPECTATOR) {

   282

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

   283

	}

   284

   285

	if (new_player == PLAYER_SPECTATOR) {

   286

		Subsidy *s;

   287

   288

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

   289

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

   290

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

   291

			}

   292

		}

   293

	}

   294

   295

	/* Take care of rating in towns */

   296

	FOR_ALL_TOWNS(t) {

   297

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

   298

		if (new_player != PLAYER_SPECTATOR) {

   299

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

   300

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

   301

					// use max of the two ratings.

   302

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

   303

				} else {

   304

					SETBIT(t->have_ratings, new_player);

   305

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

   306

				}

   307

			}

   308

		}

   309

   310

		/* Reset the ratings for the old player */

   311

		t->ratings[old_player] = 500;

   312

		CLRBIT(t->have_ratings, old_player);

   313

	}

   314

   315

	{

   316

		int num_train = 0;

   317

		int num_road = 0;

   318

		int num_ship = 0;

   319

		int num_aircraft = 0;

   320

		Vehicle *v;

   321

   322

		/*  Determine Ids for the new vehicles */

   323

		FOR_ALL_VEHICLES(v) {

   324

			if (v->owner == new_player) {

   325

				switch (v->type) {

   326

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

   327

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

   328

					case VEH_SHIP:     num_ship++; break;

   329

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

   330

					default: break;

   331

				}

   332

			}

   333

		}

   334

   335

		FOR_ALL_VEHICLES(v) {

   336

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

   337

				if (new_player == PLAYER_SPECTATOR) {

   338

					DeleteWindowById(WC_VEHICLE_VIEW, v->index);

   339

					DeleteWindowById(WC_VEHICLE_DETAILS, v->index);

   340

					DeleteWindowById(WC_VEHICLE_ORDERS, v->index);

   341

   342

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

   343

						switch (v->type) {

   344

							default: NOT_REACHED();

   345

   346

							case VEH_TRAIN: {

   347

								Vehicle *u = v;

   348

								do {

   349

									Vehicle *next = GetNextVehicle(u);

   350

									delete u;

   351

									u = next;

   352

								} while (u != NULL);

   353

							} break;

   354

   355

							case VEH_ROAD:

   356

							case VEH_SHIP:

   357

								delete v;

   358

								break;

   359

   360

							case VEH_AIRCRAFT:

   361

								DeleteVehicleChain(v);

   362

								break;

   363

						}

   364

					}

   365

				} else {

   366

					v->owner = new_player;

   367

					v->group_id = DEFAULT_GROUP;

   368

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

   369

					switch (v->type) {

   370

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

   371

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

   372

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

   373

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

   374

						default: NOT_REACHED();

   375

					}

   376

				}

   377

			}

   378

		}

   379

	}

   380

   381

	/*  Change ownership of tiles */

   382

	{

   383

		TileIndex tile = 0;

   384

		do {

   385

			ChangeTileOwner(tile, old_player, new_player);

   386

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

   387

	}

   388

   389

	/* Change color of existing windows */

   390

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

   391

   392

	_current_player = old;

   393

   394

	MarkWholeScreenDirty();

   395

}

   396

   397

static void ChangeNetworkOwner(PlayerID current_player, PlayerID new_player)

   398

{

   399

#ifdef ENABLE_NETWORK

   400

	if (!_networking) return;

   401

   402

	if (current_player == _local_player) {

   403

		_network_playas = new_player;

   404

		SetLocalPlayer(new_player);

   405

	}

   406

   407

	if (!_network_server) return;

   408

   409

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

   410

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

   411

	NetworkTCPSocketHandler *cs;

   412

	NetworkClientInfo *ci = NetworkFindClientInfoFromIndex(NETWORK_SERVER_INDEX);

   413

   414

	/* The server has just changed from player */

   415

	if (current_player == ci->client_playas) {

   416

		ci->client_playas = new_player;

   417

		NetworkUpdateClientInfo(NETWORK_SERVER_INDEX);

   418

	}

   419

   420

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

   421

	FOR_ALL_CLIENTS(cs) {

   422

		ci = DEREF_CLIENT_INFO(cs);

   423

		if (current_player == ci->client_playas) {

   424

			ci->client_playas = new_player;

   425

			NetworkUpdateClientInfo(ci->client_index);

   426

		}

   427

	}

   428

#endif /* ENABLE_NETWORK */

   429

}

   430

   431

static void PlayersCheckBankrupt(Player *p)

   432

{

   433

	PlayerID owner;

   434

   435

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

   436

	if (p->player_money >= 0) {

   437

		p->quarters_of_bankrupcy = 0;

   438

		return;

   439

	}

   440

   441

	p->quarters_of_bankrupcy++;

   442

   443

	owner = p->index;

   444

   445

	switch (p->quarters_of_bankrupcy) {

   446

		case 2:

   447

			AddNewsItem( (StringID)(owner | NB_BTROUBLE),

   448

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

   449

			break;

   450

		case 3: {

   451

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

   452

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

   453

			if (IsHumanPlayer(owner)) {

   454

				AddNewsItem( (StringID)(owner | NB_BTROUBLE),

   455

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

   456

				break;

   457

			}

   458

   459

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

   460

			 *  right now */

   461

			Money val = CalculateCompanyValue(p);

   462

			if (val > 0) {

   463

				p->bankrupt_value = val;

   464

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

   465

				p->bankrupt_timeout = 0;

   466

				break;

   467

			}

   468

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

   469

		}

   470

		case 4: {

   471

			/* Close everything the owner has open */

   472

			DeletePlayerWindows(owner);

   473

   474

			/* Show bankrupt news */

   475

			SetDParam(0, p->index);

   476

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

   477

   478

			if (IsHumanPlayer(owner)) {

   479

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

   480

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

   481

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

   482

				if (!_networking) {

   483

					p->bankrupt_asked = 0xFF;

   484

					p->bankrupt_timeout = 0x456;

   485

					break;

   486

				}

   487

   488

				ChangeNetworkOwner(owner, PLAYER_SPECTATOR);

   489

			}

   490

   491

			/* Remove the player */