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 "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 },

    51

	{ SCORE_DELIVERED,     40000, 400 },

    52

	{ SCORE_CARGO,             8,  50 },

    53

	{ SCORE_MONEY,      10000000,  50 },

    54

	{ SCORE_LOAN,         250000,  50 },

    55

	{ 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)) ||

    86

					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

    96

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

    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

		Money 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] = ClampToI32(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] = ClampToI32(min_income);

   167

   168

			_score_part[owner][SCORE_MAX_INCOME] = ClampToI32(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

		if (p->player_money > 0) {

   200

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

   201

		}

   202

	}

   203

   204

/* Generate score for loan */

   205

	{

   206

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

   207

	}

   208

   209

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

   210

	{

   211

		int total_score = 0;

   212

		int s;

   213

		score = 0;

   214

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

   215

			/* Skip the total */

   216

			if (i == SCORE_TOTAL) continue;

   217

			/*  Check the score */

   218

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

   219

				_score_info[i].score :

   220

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

   221

			if (s < 0) s = 0;

   222

			score += s;

   223

			total_score += _score_info[i].score;

   224

		}

   225

   226

		_score_part[owner][SCORE_TOTAL] = score;

   227

   228

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

   229

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

   230

	}

   231

   232

	if (update) {

   233

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

   234

		UpdateCompanyHQ(p, score);

   235

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

   236

	}

   237

   238

	InvalidateWindow(WC_PERFORMANCE_DETAIL, 0);

   239

	return score;

   240

}

   241

   242

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

   243

void ChangeOwnershipOfPlayerItems(PlayerID old_player, PlayerID new_player)

   244

{

   245

	Town *t;

   246

	PlayerID old = _current_player;

   247

   248

	assert(old_player != new_player);

   249

   250

	{

   251

		Player *p;

   252

		uint i;

   253

   254

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

   255

		_current_player = old_player;

   256

		FOR_ALL_PLAYERS(p) {

   257

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

   258

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

   259

					/* Sell his shares */

   260

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

   261

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

   262

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

   263

					SubtractMoneyFromPlayer(res);

   264

				}

   265

			}

   266

		}

   267

   268

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

   269

		p = GetPlayer(old_player);

   270

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

   271

			_current_player = p->share_owners[i];

   272

			if (_current_player != PLAYER_SPECTATOR) {

   273

				/* Sell the shares */

   274

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

   275

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

   276

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

   277

				SubtractMoneyFromPlayer(res);

   278

			}

   279

		}

   280

	}

   281

   282

	_current_player = old_player;

   283

   284

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

   285

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

   286

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

   287

	if (new_player == PLAYER_SPECTATOR) {

   288

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

   289

	}

   290

   291

	if (new_player == PLAYER_SPECTATOR) {

   292

		Subsidy *s;

   293

   294

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

   295

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

   296

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

   297

			}

   298

		}

   299

	}

   300

   301

	/* Take care of rating in towns */

   302

	FOR_ALL_TOWNS(t) {

   303

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

   304

		if (new_player != PLAYER_SPECTATOR) {

   305

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

   306

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

   307

					// use max of the two ratings.

   308

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

   309

				} else {

   310

					SETBIT(t->have_ratings, new_player);

   311

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

   312

				}

   313

			}

   314

		}

   315

   316

		/* Reset the ratings for the old player */

   317

		t->ratings[old_player] = 500;

   318

		CLRBIT(t->have_ratings, old_player);

   319

	}

   320

   321

	{

   322

		int num_train = 0;

   323

		int num_road = 0;

   324

		int num_ship = 0;

   325

		int num_aircraft = 0;

   326

		Vehicle *v;

   327

   328

		/*  Determine Ids for the new vehicles */

   329

		FOR_ALL_VEHICLES(v) {

   330

			if (v->owner == new_player) {

   331

				switch (v->type) {

   332

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

   333

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

   334

					case VEH_SHIP:     num_ship++; break;

   335

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

   336

					default: break;

   337

				}

   338

			}

   339

		}

   340

   341

		FOR_ALL_VEHICLES(v) {

   342

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

   343

				if (new_player == PLAYER_SPECTATOR) {

   344

					DeleteWindowById(WC_VEHICLE_VIEW, v->index);

   345

					DeleteWindowById(WC_VEHICLE_DETAILS, v->index);

   346

					DeleteWindowById(WC_VEHICLE_ORDERS, v->index);

   347

   348

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

   349

						switch (v->type) {

   350

							default: NOT_REACHED();

   351

   352

							case VEH_TRAIN: {

   353

								Vehicle *u = v;

   354

								do {

   355

									Vehicle *next = GetNextVehicle(u);

   356

									DeleteVehicle(u);

   357

									u = next;

   358

								} while (u != NULL);

   359

							} break;

   360

   361

							case VEH_ROAD:

   362

							case VEH_SHIP:

   363

								DeleteVehicle(v);

   364

								break;

   365

   366

							case VEH_AIRCRAFT:

   367

								DeleteVehicleChain(v);

   368

								break;

   369

						}

   370

					}

   371

				} else {

   372

					v->owner = new_player;

   373

					v->group_id = DEFAULT_GROUP;

   374

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

   375

					switch (v->type) {

   376

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

   377

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

   378

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

   379

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

   380

						default: NOT_REACHED();

   381

					}

   382

				}

   383

			}

   384

		}

   385

	}

   386

   387

	/*  Change ownership of tiles */

   388

	{

   389

		TileIndex tile = 0;

   390

		do {

   391

			ChangeTileOwner(tile, old_player, new_player);

   392

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

   393

	}

   394

   395

	/* Change color of existing windows */

   396

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

   397

   398

	_current_player = old;

   399

   400

	MarkWholeScreenDirty();

   401

}

   402

   403

static void ChangeNetworkOwner(PlayerID current_player, PlayerID new_player)

   404

{

   405

#ifdef ENABLE_NETWORK

   406

	if (!_networking) return;

   407

   408

	if (current_player == _local_player) {

   409

		_network_playas = new_player;

   410

		SetLocalPlayer(new_player);

   411

	}

   412

   413

	if (!_network_server) return;

   414

   415

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

   416

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

   417

	NetworkTCPSocketHandler *cs;

   418

	NetworkClientInfo *ci = NetworkFindClientInfoFromIndex(NETWORK_SERVER_INDEX);

   419

   420

	/* The server has just changed from player */

   421

	if (current_player == ci->client_playas) {

   422

		ci->client_playas = new_player;

   423

		NetworkUpdateClientInfo(NETWORK_SERVER_INDEX);

   424

	}

   425

   426

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

   427

	FOR_ALL_CLIENTS(cs) {

   428

		ci = DEREF_CLIENT_INFO(cs);

   429

		if (current_player == ci->client_playas) {

   430

			ci->client_playas = new_player;

   431

			NetworkUpdateClientInfo(ci->client_index);

   432

		}

   433

	}

   434

#endif /* ENABLE_NETWORK */

   435

}

   436

   437

static void PlayersCheckBankrupt(Player *p)

   438

{

   439

	PlayerID owner;

   440

   441

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

   442

	if (p->player_money >= 0) {

   443

		p->quarters_of_bankrupcy = 0;

   444

		return;

   445

	}

   446

   447

	p->quarters_of_bankrupcy++;

   448

   449

	owner = p->index;

   450

   451

	switch (p->quarters_of_bankrupcy) {

   452

		case 2:

   453

			AddNewsItem( (StringID)(owner | NB_BTROUBLE),

   454

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

   455

			break;

   456

		case 3: {

   457

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

   458

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

   459

			if (IsHumanPlayer(owner)) {

   460

				AddNewsItem( (StringID)(owner | NB_BTROUBLE),

   461

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

   462

				break;

   463

			}

   464

   465

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

   466

			 *  right now */

   467

			Money val = CalculateCompanyValue(p);

   468

			if (val > 0) {

   469

				p->bankrupt_value = val;

   470

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

   471

				p->bankrupt_timeout = 0;

   472

				break;

   473

			}

   474

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

   475

		}

   476

		case 4: {

   477

			/* Close everything the owner has open */

   478

			DeletePlayerWindows(owner);

   479

   480

			/* Show bankrupt news */

   481

			SetDParam(0, p->index);

   482

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

   483

   484

			if (IsHumanPlayer(owner)) {

   485

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

   486

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

   487

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

   488

				if (!_networking) {

   489

					p->bankrupt_asked = 0xFF;

   490

					p->bankrupt_timeout = 0x456;

   491

					break;

   492

				}