1

/* $Id$ */

     2

     3

/** @file misc_cmd.cpp */

     4

     5

#include "stdafx.h"

     6

#include "openttd.h"

     7

#include "functions.h"

     8

#include "string.h"

     9

#include "table/strings.h"

    10

#include "command.h"

    11

#include "player.h"

    12

#include "gfx.h"

    13

#include "window.h"

    14

#include "gui.h"

    15

#include "economy.h"

    16

#include "network/network.h"

    17

#include "variables.h"

    18

#include "livery.h"

    19

#include "player_face.h"

    20

#include "strings.h"

    21

    22

/** Change the player's face.

    23

 * @param tile unused

    24

 * @param flags operation to perform

    25

 * @param p1 unused

    26

 * @param p2 face bitmasked

    27

 */

    28

CommandCost CmdSetPlayerFace(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)

    29

{

    30

	PlayerFace pf = (PlayerFace)p2;

    31

    32

	if (!IsValidPlayerFace(pf)) return CMD_ERROR;

    33

    34

	if (flags & DC_EXEC) {

    35

		GetPlayer(_current_player)->face = pf;

    36

		MarkWholeScreenDirty();

    37

	}

    38

	return CommandCost();

    39

}

    40

    41

/** Change the player's company-colour

    42

 * @param tile unused

    43

 * @param flags operation to perform

    44

 * @param p1 bitstuffed:

    45

 * p1 bits 0-7 scheme to set

    46

 * p1 bits 8-9 set in use state or first/second colour

    47

 * @param p2 new colour for vehicles, property, etc.

    48

 */

    49

CommandCost CmdSetPlayerColor(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)

    50

{

    51

	Player *p, *pp;

    52

	byte colour;

    53

	LiveryScheme scheme = (LiveryScheme)GB(p1, 0, 8);

    54

	byte state = GB(p1, 8, 2);

    55

    56

	if (p2 >= 16) return CMD_ERROR; // max 16 colours

    57

	colour = p2;

    58

    59

	if (scheme >= LS_END || state >= 3) return CMD_ERROR;

    60

    61

	p = GetPlayer(_current_player);

    62

    63

	/* Ensure no two companies have the same primary colour */

    64

	if (scheme == LS_DEFAULT && state == 0) {

    65

		FOR_ALL_PLAYERS(pp) {

    66

			if (pp->is_active && pp != p && pp->player_color == colour) return CMD_ERROR;

    67

		}

    68

	}

    69

    70

	if (flags & DC_EXEC) {

    71

		switch (state) {

    72

			case 0:

    73

				p->livery[scheme].colour1 = colour;

    74

    75

				/* If setting the first colour of the default scheme, adjust the

    76

				 * original and cached player colours too. */

    77

				if (scheme == LS_DEFAULT) {

    78

					_player_colors[_current_player] = colour;

    79

					p->player_color = colour;

    80

				}

    81

				break;

    82

    83

			case 1:

    84

				p->livery[scheme].colour2 = colour;

    85

				break;

    86

    87

			case 2:

    88

				p->livery[scheme].in_use = colour != 0;

    89

    90

				/* Now handle setting the default scheme's in_use flag.

    91

				 * This is different to the other schemes, as it signifies if any

    92

				 * scheme is active at all. If this flag is not set, then no

    93

				 * processing of vehicle types occurs at all, and only the default

    94

				 * colours will be used. */

    95

    96

				/* If enabling a scheme, set the default scheme to be in use too */

    97

				if (colour != 0) {

    98

					p->livery[LS_DEFAULT].in_use = true;

    99

					break;

   100

				}

   101

   102

				/* Else loop through all schemes to see if any are left enabled.

   103

				 * If not, disable the default scheme too. */

   104

				p->livery[LS_DEFAULT].in_use = false;

   105

				for (scheme = LS_DEFAULT; scheme < LS_END; scheme++) {

   106

					if (p->livery[scheme].in_use) {

   107

						p->livery[LS_DEFAULT].in_use = true;

   108

						break;

   109

					}

   110

				}

   111

				break;

   112

   113

			default:

   114

				break;

   115

		}

   116

		MarkWholeScreenDirty();

   117

	}

   118

	return CommandCost();

   119

}

   120

   121

/** Increase the loan of your company.

   122

 * @param tile unused

   123

 * @param flags operation to perform

   124

 * @param p1 unused

   125

 * @param p2 when 0: loans LOAN_INTERVAL

   126

 *           when 1: loans the maximum loan permitting money (press CTRL),

   127

 */

   128

CommandCost CmdIncreaseLoan(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)

   129

{

   130

	Player *p = GetPlayer(_current_player);

   131

   132

	if (p->current_loan >= _economy.max_loan) {

   133

		SetDParam(0, _economy.max_loan);

   134

		return_cmd_error(STR_702B_MAXIMUM_PERMITTED_LOAN);

   135

	}

   136

   137

	Money loan;

   138

	switch (p2) {

   139

		default: return CMD_ERROR; // Invalid method

   140

		case 0: // Take some extra loan

   141

			loan = (IsHumanPlayer(_current_player) || _patches.ainew_active) ? LOAN_INTERVAL : LOAN_INTERVAL_OLD_AI;

   142

			break;

   143

		case 1: // Take a loan as big as possible

   144

			loan = _economy.max_loan - p->current_loan;

   145

			break;

   146

	}

   147

   148

	/* Overflow protection */

   149

	if (p->player_money + p->current_loan + loan < p->player_money) return CMD_ERROR;

   150

   151

	if (flags & DC_EXEC) {

   152

		p->player_money += loan;

   153

		p->current_loan += loan;

   154

		InvalidatePlayerWindows(p);

   155

	}

   156

   157

	return CommandCost();

   158

}

   159

   160

/** Decrease the loan of your company.

   161

 * @param tile unused

   162

 * @param flags operation to perform

   163

 * @param p1 unused

   164

 * @param p2 when 0: pays back LOAN_INTERVAL

   165

 *           when 1: pays back the maximum loan permitting money (press CTRL),

   166

 */

   167

CommandCost CmdDecreaseLoan(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)

   168

{

   169

	Player *p = GetPlayer(_current_player);

   170

   171

	if (p->current_loan == 0) return_cmd_error(STR_702D_LOAN_ALREADY_REPAYED);

   172

   173

	Money loan;

   174

	switch (p2) {

   175

		default: return CMD_ERROR; // Invalid method

   176

		case 0: // Pay back one step

   177

			loan = min(p->current_loan, (Money)(IsHumanPlayer(_current_player) || _patches.ainew_active) ? LOAN_INTERVAL : LOAN_INTERVAL_OLD_AI);

   178

			break;

   179

		case 1: // Pay back as much as possible

   180

			loan = max(min(p->current_loan, p->player_money), (Money)LOAN_INTERVAL);

   181

			loan -= loan % LOAN_INTERVAL;

   182

			break;

   183

	}

   184

   185

	if (p->player_money < loan) {

   186

		SetDParam(0, loan);

   187

		return_cmd_error(STR_702E_REQUIRED);

   188

	}

   189

   190

	if (flags & DC_EXEC) {

   191

		p->player_money -= loan;

   192

		p->current_loan -= loan;

   193

		InvalidatePlayerWindows(p);

   194

	}

   195

	return CommandCost();

   196

}

   197

   198

static bool IsUniqueCompanyName(const char *name)

   199

{

   200

	const Player *p;

   201

	char buf[512];

   202

   203

	FOR_ALL_PLAYERS(p) {

   205

		SetDParam(0, p->index);

   206

		GetString(buf, STR_COMPANY_NAME, lastof(buf));

   207

		if (strcmp(buf, name) == 0) return false;

   208

	}

   209

   210

	return true;

   211

}

   212

   213

/** Change the name of the company.

   214

 * @param tile unused

   215

 * @param flags operation to perform

   216

 * @param p1 unused

   217

 * @param p2 unused

   218

 */

   219

CommandCost CmdChangeCompanyName(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)

   220

{

   221

	StringID str;

   222

	Player *p;

   223

   224

	if (StrEmpty(_cmd_text)) return CMD_ERROR;

   225

   226

	if (!IsUniqueCompanyName(_cmd_text)) return_cmd_error(STR_NAME_MUST_BE_UNIQUE);

   227

   228

	str = AllocateName(_cmd_text, 4);

   229

	if (str == 0) return CMD_ERROR;

   230

   231

	if (flags & DC_EXEC) {

   232

		p = GetPlayer(_current_player);

   233

		DeleteName(p->name_1);

   234

		p->name_1 = str;

   235

		MarkWholeScreenDirty();

   236

	} else {

   237

		DeleteName(str);

   238

	}

   239

   240

	return CommandCost();

   241

}

   242

   243

static bool IsUniquePresidentName(const char *name)

   244

{

   245

	const Player *p;

   246

	char buf[512];

   247

   248

	FOR_ALL_PLAYERS(p) {

   250

		SetDParam(0, p->index);

   251

		GetString(buf, STR_PLAYER_NAME, lastof(buf));

   252

		if (strcmp(buf, name) == 0) return false;

   253

	}

   254

   255

	return true;

   256

}

   257

   258

/** Change the name of the president.

   259

 * @param tile unused

   260

 * @param flags operation to perform

   261

 * @param p1 unused

   262

 * @param p2 unused

   263

 */

   264

CommandCost CmdChangePresidentName(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)

   265

{

   266

	StringID str;

   267

	Player *p;

   268

   269

	if (StrEmpty(_cmd_text)) return CMD_ERROR;

   270

   271

	if (!IsUniquePresidentName(_cmd_text)) return_cmd_error(STR_NAME_MUST_BE_UNIQUE);

   272

   273

	str = AllocateName(_cmd_text, 4);

   274

	if (str == 0) return CMD_ERROR;

   275

   276

	if (flags & DC_EXEC) {

   277

		p = GetPlayer(_current_player);

   278

		DeleteName(p->president_name_1);

   279

		p->president_name_1 = str;

   280

   281

		if (p->name_1 == STR_SV_UNNAMED) {

   282

			char buf[80];

   283

   284

			snprintf(buf, lengthof(buf), "%s Transport", _cmd_text);

   285

			_cmd_text = buf;

   286

			DoCommand(0, 0, 0, DC_EXEC, CMD_CHANGE_COMPANY_NAME);

   287

		}

   288

		MarkWholeScreenDirty();

   289

	} else {

   290

		DeleteName(str);

   291

	}

   292

   293

	return CommandCost();

   294

}

   295

   296

/** Pause/Unpause the game (server-only).

   297

 * Increase or decrease the pause counter. If the counter is zero,

   298

 * the game is unpaused. A counter is used instead of a boolean value

   299

 * to have more control over the game when saving/loading, etc.

   300

 * @param tile unused

   301

 * @param flags operation to perform

   302

 * @param p1 0 = decrease pause counter; 1 = increase pause counter

   303

 * @param p2 unused

   304

 */

   305

CommandCost CmdPause(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)

   306

{

   307

	if (flags & DC_EXEC) {

   308

		_pause_game += (p1 == 1) ? 1 : -1;

   309

		if (_pause_game == (byte)-1) _pause_game = 0;

   310

		InvalidateWindow(WC_STATUS_BAR, 0);

   311

		InvalidateWindow(WC_MAIN_TOOLBAR, 0);

   312

	}

   313

	return CommandCost();

   314

}

   315

   316

/** Change the financial flow of your company.

   317

 * This is normally only enabled in offline mode, but if there is a debug

   318

 * build, you can cheat (to test).

   319

 * @param tile unused

   320

 * @param flags operation to perform

   321

 * @param p1 the amount of money to receive (if negative), or spend (if positive)

   322

 * @param p2 unused

   323

 */

   324

CommandCost CmdMoneyCheat(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)

   325

{

   326

#ifndef _DEBUG

   327

	if (_networking) return CMD_ERROR;

   328

#endif

   329

	SET_EXPENSES_TYPE(EXPENSES_OTHER);

   330

	return CommandCost(-(Money)p1);

   331

}

   332

   333

/** Transfer funds (money) from one player to another.

   334

 * To prevent abuse in multiplayer games you can only send money to other

   335

 * players if you have paid off your loan (either explicitely, or implicitely

   336

 * given the fact that you have more money than loan).

   337

 * @param tile unused

   338

 * @param flags operation to perform

   339

 * @param p1 the amount of money to transfer; max 20.000.000

   340

 * @param p2 the player to transfer the money to

   341

 */

   342

CommandCost CmdGiveMoney(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)

   343

{

   344

	const Player *p = GetPlayer(_current_player);

   345

	CommandCost amount(min((Money)p1, (Money)20000000LL));

   346

   347

	SET_EXPENSES_TYPE(EXPENSES_OTHER);

   348

   349

	/* You can only transfer funds that is in excess of your loan */

   350

	if (p->player_money - p->current_loan < amount.GetCost() || amount.GetCost() <= 0) return CMD_ERROR;

   351

	if (!_networking || !IsValidPlayer((PlayerID)p2)) return CMD_ERROR;

   352

   353

	if (flags & DC_EXEC) {

   354

		/* Add money to player */

   355

		PlayerID old_cp = _current_player;

   356

		_current_player = (PlayerID)p2;

   357

		SubtractMoneyFromPlayer(CommandCost(-amount.GetCost()));

   358

		_current_player = old_cp;

   359

	}

   360

   361

	/* Subtract money from local-player */

   362

	return amount;

   363

}

   364

   365

/** Change difficulty level/settings (server-only).

   366

 * We cannot really check for valid values of p2 (too much work mostly); stored

   367

 * in file 'settings_gui.c' _game_setting_info[]; we'll just trust the server it knows

   368

 * what to do and does this correctly

   369

 * @param tile unused

   370

 * @param flags operation to perform

   371

 * @param p1 the difficulty setting being changed. If it is -1, the difficulty level

   372

 *           itself is changed. The new value is inside p2

   373

 * @param p2 new value for a difficulty setting or difficulty level

   374

 */

   375

CommandCost CmdChangeDifficultyLevel(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)

   376

{

   377

	if (p1 != (uint32)-1L && ((int32)p1 >= GAME_DIFFICULTY_NUM || (int32)p1 < 0)) return CMD_ERROR;

   378

   379

	if (flags & DC_EXEC) {

   380

		if (p1 != (uint32)-1L) {

   381

			((int*)&_opt_ptr->diff)[p1] = p2;

   382

			_opt_ptr->diff_level = 3; // custom difficulty level

   383

		} else {

   384

			_opt_ptr->diff_level = p2;

   385

		}

   386

   387

		/* If we are a network-client, update the difficult setting (if it is open).

   388

		 * Use this instead of just dirtying the window because we need to load in

   389

		 * the new difficulty settings */

   390

		if (_networking && !_network_server && FindWindowById(WC_GAME_OPTIONS, 0) != NULL)

   391

			ShowGameDifficulty();

   392

	}

   393

	return CommandCost();

   394

}