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"

    44

#include "group.h"

    45

    78

/* Score info */

    79

const ScoreInfo _score_info[] = {

    80

	{ SCORE_VEHICLES,        120, 100 },

    81

	{ SCORE_STATIONS,         80, 100 },

    82

	{ SCORE_MIN_PROFIT,    10000, 100 },

    83

	{ SCORE_MIN_INCOME,    50000,  50 },

    84

	{ SCORE_MAX_INCOME,   100000, 100 },

    85

	{ SCORE_DELIVERED,     40000, 400 },

    86

	{ SCORE_CARGO,             8,  50 },

    87

	{ SCORE_MONEY,      10000000,  50 },

    88

	{ SCORE_LOAN,         250000,  50 },

    89

	{ SCORE_TOTAL,             0,   0 }

    90

};

    91

    92

int _score_part[MAX_PLAYERS][SCORE_END];

    93

    94

Money CalculateCompanyValue(const Player* p)

    95

{

    96

	PlayerID owner = p->index;

    97

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

    98

	Money value = 0;

    99

   100

	Station *st;

   101

	uint num = 0;

   102

   103

	FOR_ALL_STATIONS(st) {

   104

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

   105

	}

   106

   107

	value += num * _price.station_value * 25;

   108

   109

	Vehicle *v;

   110

	FOR_ALL_VEHICLES(v) {

   111

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

   112

   113

		if (v->type == VEH_TRAIN ||

   114

				v->type == VEH_ROAD ||

   115

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

   116

				v->type == VEH_SHIP) {

   117

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

   118

		}

   119

	}

   120

   121

	/* Add real money value */

   122

	value -= p->current_loan;

   123

	value += p->player_money;

   124

   125

	return max(value, (Money)1);

   126

}

   127

   128

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

   129

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

   130

 * @param update the economy with calculated score

   131

 * @param p player been evaluated

   132

 * @return actual score of this player

   133

 * */

   134

int UpdateCompanyRatingAndValue(Player *p, bool update)

   135

{

   136

	byte owner = p->index;

   137

	int score = 0;

   138

   139

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

   140

   141

/* Count vehicles */

   142

	{

   143

		Vehicle *v;

   144

		Money min_profit = 0;

   145

		bool min_profit_first = true;

   146

		uint num = 0;

   147

   148

		FOR_ALL_VEHICLES(v) {

   149

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

   150

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

   151

				num++;

   152

				if (v->age > 730) {

   153

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

   154

					if (min_profit_first == true) {

   155

						min_profit = v->profit_last_year;

   156

						min_profit_first = false;

   157

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

   158

						min_profit = v->profit_last_year;

   159

					}

   160

				}

   161

			}

   162

		}

   163

   164

		_score_part[owner][SCORE_VEHICLES] = num;

   165

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

   166

		if (min_profit > 0)

   167

			_score_part[owner][SCORE_MIN_PROFIT] = ClampToI32(min_profit);

   168

	}

   169

   170

/* Count stations */

   171

	{

   172

		uint num = 0;

   173

		const Station* st;

   174

   175

		FOR_ALL_STATIONS(st) {

   176

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

   177

		}

   178

		_score_part[owner][SCORE_STATIONS] = num;

   179

	}

   180

   181

/* Generate statistics depending on recent income statistics */

   182

	{

   183

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

   184

		if (numec != 0) {

   185

			const PlayerEconomyEntry *pee = p->old_economy;

   186

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

   187

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

   188

   189

			do {

   190

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

   191

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

   192

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

   193

   194

			if (min_income > 0)

   195

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

   196

   197

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

   198

		}

   199

	}

   200

   201

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

   202

	{

   203

		const PlayerEconomyEntry* pee;

   204

		int numec;

   205

		uint32 total_delivered;

   206

   207

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

   208

		if (numec != 0) {

   209

			pee = p->old_economy;

   210

			total_delivered = 0;

   211

			do {

   212

				total_delivered += pee->delivered_cargo;

   213

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

   214

   215

			_score_part[owner][SCORE_DELIVERED] = total_delivered;

   216

		}

   217

	}

   218

   219

/* Generate score for variety of cargo */

   220

	{

   221

		uint num = CountBits(p->cargo_types);

   222

		_score_part[owner][SCORE_CARGO] = num;

   223

		if (update) p->cargo_types = 0;

   224

	}

   225

   226

/* Generate score for player money */

   227

	{

   228

		if (p->player_money > 0) {

   229

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

   230

		}

   231

	}

   232

   233

/* Generate score for loan */

   234

	{

   235

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

   236

	}

   237

   238

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

   239

	{

   240

		int total_score = 0;

   241

		int s;

   242

		score = 0;

   243

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

   244

			/* Skip the total */

   245

			if (i == SCORE_TOTAL) continue;

   246

			/*  Check the score */

   247

			s = Clamp(_score_part[owner][i], 0, _score_info[i].needed) * _score_info[i].score / _score_info[i].needed;

   248

			score += s;

   249

			total_score += _score_info[i].score;

   250

		}

   251

   252

		_score_part[owner][SCORE_TOTAL] = score;

   253

   254

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

   255

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

   256

	}

   257

   258

	if (update) {

   259

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

   260

		UpdateCompanyHQ(p, score);

   261

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

   262

	}

   263

   264

	InvalidateWindow(WC_PERFORMANCE_DETAIL, 0);

   265

	return score;

   266

}

   267

   268

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

   269

void ChangeOwnershipOfPlayerItems(PlayerID old_player, PlayerID new_player)

   270

{

   271

	Town *t;

   272

	PlayerID old = _current_player;

   273

   274

	assert(old_player != new_player);

   275

   276

	{

   277

		Player *p;

   278

		uint i;

   279

   280

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

   281

		_current_player = old_player;

   282

		FOR_ALL_PLAYERS(p) {

   283

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

   284

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

   285

					/* Sell his shares */

   286

					CommandCost res = DoCommand(0, p->index, 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

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

   295

		p = GetPlayer(old_player);

   296

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

   297

			_current_player = p->share_owners[i];

   298

			if (_current_player != PLAYER_SPECTATOR) {

   299

				/* Sell the shares */

   300

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

   301

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

   302

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

   303

				SubtractMoneyFromPlayer(res);

   304

			}

   305

		}

   306

	}

   307

   308

	_current_player = old_player;

   309

   310

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

   311

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

   312

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

   313

	if (new_player == PLAYER_SPECTATOR) {

   314

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

   315

	}

   316

   317

	if (new_player == PLAYER_SPECTATOR) {

   318

		Subsidy *s;

   319

   320

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

   321

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

   322

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

   323

			}

   324

		}

   325

	}

   326

   327

	/* Take care of rating in towns */

   328

	FOR_ALL_TOWNS(t) {

   329

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

   330

		if (new_player != PLAYER_SPECTATOR) {

   331

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

   332

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

   333

					// use max of the two ratings.

   334

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

   335

				} else {

   336

					SETBIT(t->have_ratings, new_player);

   337

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

   338

				}

   339

			}

   340

		}

   341

   342

		/* Reset the ratings for the old player */

   343

		t->ratings[old_player] = 500;

   344

		CLRBIT(t->have_ratings, old_player);

   345

	}

   346

   347

	{

   348

		int num_train = 0;

   349

		int num_road = 0;

   350

		int num_ship = 0;

   351

		int num_aircraft = 0;

   352

		Vehicle *v;

   353

   354

		/*  Determine Ids for the new vehicles */

   355

		FOR_ALL_VEHICLES(v) {

   356

			if (v->owner == new_player) {

   357

				switch (v->type) {

   358

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

   359

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

   360

					case VEH_SHIP:     num_ship++; break;

   361

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

   362

					default: break;

   363

				}

   364

			}

   365

		}

   366

   367

		FOR_ALL_VEHICLES(v) {

   368

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

   369

				if (new_player == PLAYER_SPECTATOR) {

   370

					DeleteWindowById(WC_VEHICLE_VIEW, v->index);

   371

					DeleteWindowById(WC_VEHICLE_DETAILS, v->index);

   372

					DeleteWindowById(WC_VEHICLE_ORDERS, v->index);

   373

   374

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

   375

						switch (v->type) {

   376

							default: NOT_REACHED();

   377

   378

							case VEH_TRAIN: {

   379

								Vehicle *u = v;

   380

								do {

   381

									Vehicle *next = GetNextVehicle(u);

   382

									delete u;

   383

									u = next;

   384

								} while (u != NULL);

   385

							} break;

   386

   387

							case VEH_ROAD:

   388

							case VEH_SHIP:

   389

								delete v;

   390

								break;

   391

   392

							case VEH_AIRCRAFT:

   393

								DeleteVehicleChain(v);

   394

								break;

   395

						}

   396

					}

   397

				} else {

   398

					v->owner = new_player;

   399

					v->group_id = DEFAULT_GROUP;

   400

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

   401

					switch (v->type) {

   402

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

   403

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

   404

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

   405

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

   406

						default: NOT_REACHED();

   407

					}

   408

				}

   409

			}

   410

		}

   411

	}

   412

   413

	/*  Change ownership of tiles */

   414

	{

   415

		TileIndex tile = 0;

   416

		do {

   417

			ChangeTileOwner(tile, old_player, new_player);

   418

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

   419

	}

   420

   421

	/* Change color of existing windows */

   422

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

   423

   424

	_current_player = old;

   425

   426

	MarkWholeScreenDirty();

   427

}

   428

   429

static void ChangeNetworkOwner(PlayerID current_player, PlayerID new_player)

   430

{

   431

#ifdef ENABLE_NETWORK

   432

	if (!_networking) return;

   433

   434

	if (current_player == _local_player) {

   435

		_network_playas = new_player;

   436

		SetLocalPlayer(new_player);

   437

	}

   438

   439

	if (!_network_server) return;

   440

   441

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

   442

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

   443

	NetworkTCPSocketHandler *cs;

   444

	NetworkClientInfo *ci = NetworkFindClientInfoFromIndex(NETWORK_SERVER_INDEX);

   445

   446

	/* The server has just changed from player */

   447

	if (current_player == ci->client_playas) {

   448

		ci->client_playas = new_player;

   449

		NetworkUpdateClientInfo(NETWORK_SERVER_INDEX);

   450

	}

   451

   452

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

   453

	FOR_ALL_CLIENTS(cs) {

   454

		ci = DEREF_CLIENT_INFO(cs);

   455

		if (current_player == ci->client_playas) {

   456

			ci->client_playas = new_player;

   457

			NetworkUpdateClientInfo(ci->client_index);

   458

		}

   459

	}

   460

#endif /* ENABLE_NETWORK */

   461

}

   462

   463

static void PlayersCheckBankrupt(Player *p)

   464

{

   465

	PlayerID owner;

   466

   467

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

   468

	if (p->player_money >= 0) {

   469

		p->quarters_of_bankrupcy = 0;

   470

		return;

   471

	}

   472

   473

	p->quarters_of_bankrupcy++;

   474

   475

	owner = p->index;

   476

   477

	switch (p->quarters_of_bankrupcy) {

   478

		case 2:

   479

			AddNewsItem( (StringID)(owner | NB_BTROUBLE),

   480

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

   481

			break;

   482

		case 3: {

   483

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

   484

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

   485

			if (IsHumanPlayer(owner)) {

   486

				AddNewsItem( (StringID)(owner | NB_BTROUBLE),

   487

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

   488

				break;

   489

			}

   490

   491

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

   492

			 *  right now */