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"

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#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 "unmovable.h"

    40

#include "date.h"

    41

#include "cargotype.h"

    42

#include "player_face.h"

    43

#include "group.h"

    44

    45

/* Score info */

    46

const ScoreInfo _score_info[] = {

    47

	{ SCORE_VEHICLES,        120, 100 },

    48

	{ SCORE_STATIONS,         80, 100 },

    49

	{ SCORE_MIN_PROFIT,    10000, 100 },

    50

	{ SCORE_MIN_INCOME,    50000,  50 },

    51

	{ SCORE_MAX_INCOME,   100000, 100 },

    52

	{ SCORE_DELIVERED,     40000, 400 },

    53

	{ SCORE_CARGO,             8,  50 },

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	{ SCORE_MONEY,      10000000,  50 },

    55

	{ SCORE_LOAN,         250000,  50 },

    56

	{ SCORE_TOTAL,             0,   0 }

    57

};

    58

    59

int _score_part[MAX_PLAYERS][SCORE_END];

    60

    61

Money CalculateCompanyValue(const Player* p)

    62

{

    63

	PlayerID owner = p->index;

    64

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

    65

	CommandCost value;

    66

    67

	{

    68

		Station *st;

    69

		uint num = 0;

    70

    71

		FOR_ALL_STATIONS(st) {

    72

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

    73

		}

    74

    75

		value.AddCost(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)) ||

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					v->type == VEH_SHIP) {

    88

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

    89

			}

    90

		}

    91

	}

    92

    93

	/* Add real money value */

    94

	value.AddCost(-p->current_loan);

    95

	value.AddCost(p->player_money);

    96

    97

	return max(value.GetCost(), 1LL);

    98

}

    99

   100

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

   101

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

   102

 * @param update the economy with calculated score

   103

 * @param p player been evaluated

   104

 * @return actual score of this player

   105

 * */

   106

int UpdateCompanyRatingAndValue(Player *p, bool update)

   107

{

   108

	byte owner = p->index;

   109

	int score = 0;

   110

   111

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

   112

   113

/* Count vehicles */

   114

	{

   115

		Vehicle *v;

   116

		Money min_profit = 0;

   117

		bool min_profit_first = true;

   118

		uint num = 0;

   119

   120

		FOR_ALL_VEHICLES(v) {

   121

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

   122

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

   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] = ClampToI32(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) num += CountBitsSet(st->facilities);

   149

		}

   150

		_score_part[owner][SCORE_STATIONS] = num;

   151

	}

   152

   153

/* Generate statistics depending on recent income statistics */

   154

	{

   155

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

   156

		if (numec != 0) {

   157

			const PlayerEconomyEntry *pee = p->old_economy;

   158

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

   159

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

   160

   161

			do {

   162

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

   163

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

   164

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

   165

   166

			if (min_income > 0)

   167

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

   168

   169

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

   170

		}

   171

	}

   172

   173

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

   174

	{

   175

		const PlayerEconomyEntry* pee;

   176

		int numec;

   177

		uint32 total_delivered;

   178

   179

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

   180

		if (numec != 0) {

   181

			pee = p->old_economy;

   182

			total_delivered = 0;

   183

			do {

   184

				total_delivered += pee->delivered_cargo;

   185

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

   186

   187

			_score_part[owner][SCORE_DELIVERED] = total_delivered;

   188

		}

   189

	}

   190

   191

/* Generate score for variety of cargo */

   192

	{

   193

		uint num = CountBitsSet(p->cargo_types);

   194

		_score_part[owner][SCORE_CARGO] = num;

   195

		if (update) p->cargo_types = 0;

   196

	}

   197

   198

/* Generate score for player money */

   199

	{

   200

		if (p->player_money > 0) {

   201

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

   202

		}

   203

	}

   204

   205

/* Generate score for loan */

   206

	{

   207

		_score_part[owner][SCORE_LOAN] = ClampToI32(_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

   442

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

   443

	if (p->player_money >= 0) {

   444

		p->quarters_of_bankrupcy = 0;

   445

		return;

   446

	}

   447

   448

	p->quarters_of_bankrupcy++;

   449

   450

	owner = p->index;

   451

   452

	switch (p->quarters_of_bankrupcy) {

   453

		case 2:

   454

			AddNewsItem( (StringID)(owner | NB_BTROUBLE),

   455

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

   456

			break;

   457

		case 3: {

   458

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

   459

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

   460

			if (IsHumanPlayer(owner)) {

   461

				AddNewsItem( (StringID)(owner | NB_BTROUBLE),

   462

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

   463

				break;

   464

			}

   465

   466

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

   467

			 *  right now */

   468

			Money val = CalculateCompanyValue(p);

   469

			if (val > 0) {

   470

				p->bankrupt_value = val;

   471

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

   472

				p->bankrupt_timeout = 0;

   473

				break;

   474

			}

   475

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

   476

		}

   477

		case 4: {

   478

			/* Close everything the owner has open */

   479

			DeletePlayerWindows(owner);

   480

   481

			/* Show bankrupt news */

   482

			SetDParam(0, p->index);

   483

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

   484

   485

			if (IsHumanPlayer(owner)) {

   486

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

   487

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

   488

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

   489

				if (!_networking) {

   490

					p->bankrupt_asked = 0xFF;

   491

					p->bankrupt_timeout = 0x456;

   492

					break;

   493