1

/* $Id$ */

     2

     3

/** @file settings_gui.cpp */

     4

     5

#include "stdafx.h"

     6

#include "openttd.h"

     7

#include "currency.h"

     8

#include "string.h"

     9

#include "table/sprites.h"

    10

#include "table/strings.h"

    11

#include "gui.h"

    12

#include "window_gui.h"

    13

#include "textbuf_gui.h"

    14

#include "command_func.h"

    15

#include "engine.h"

    16

#include "screenshot.h"

    17

#include "newgrf.h"

    18

#include "network/network.h"

    19

#include "town.h"

    20

#include "variables.h"

    21

#include "settings.h"

    22

#include "newgrf_townname.h"

    23

#include "strings_func.h"

    24

#include "functions.h"

    25

#include "window_func.h"

    26

#include "vehicle_base.h"

    27

    28

static uint32 _difficulty_click_a;

    29

static uint32 _difficulty_click_b;

    30

static byte _difficulty_timeout;

    31

    32

static const StringID _units_dropdown[] = {

    33

	STR_UNITS_IMPERIAL,

    34

	STR_UNITS_METRIC,

    35

	STR_UNITS_SI,

    36

	INVALID_STRING_ID

    37

};

    38

    39

static const StringID _driveside_dropdown[] = {

    40

	STR_02E9_DRIVE_ON_LEFT,

    41

	STR_02EA_DRIVE_ON_RIGHT,

    42

	INVALID_STRING_ID

    43

};

    44

    45

static const StringID _autosave_dropdown[] = {

    46

	STR_02F7_OFF,

    47

	STR_AUTOSAVE_1_MONTH,

    48

	STR_02F8_EVERY_3_MONTHS,

    49

	STR_02F9_EVERY_6_MONTHS,

    50

	STR_02FA_EVERY_12_MONTHS,

    51

	INVALID_STRING_ID,

    52

};

    53

    54

static const StringID _designnames_dropdown[] = {

    55

	STR_02BE_DEFAULT,

    56

	STR_02BF_CUSTOM,

    57

	INVALID_STRING_ID

    58

};

    59

    60

static StringID *BuildDynamicDropdown(StringID base, int num)

    61

{

    62

	static StringID buf[32 + 1];

    63

	StringID *p = buf;

    64

	while (--num>=0) *p++ = base++;

    65

	*p = INVALID_STRING_ID;

    66

	return buf;

    67

}

    68

    69

int _nb_orig_names = SPECSTR_TOWNNAME_LAST - SPECSTR_TOWNNAME_START + 1;

    70

static StringID *_town_names = NULL;

    71

static StringID *_grf_names = NULL;

    72

static int _nb_grf_names = 0;

    73

    74

void SortTownGeneratorNames()

    75

{

    76

	int n = 0;

    77

    78

	/* Get Newgrf generators' names */

    79

	free(_grf_names);

    80

	_grf_names = GetGRFTownNameList();

    81

	_nb_grf_names = 0;

    82

	for (StringID *s = _grf_names; *s != INVALID_STRING_ID; s++) _nb_grf_names++;

    83

    84

	/* Prepare the list */

    85

	free(_town_names);

    86

	_town_names = MallocT<StringID>(_nb_orig_names + _nb_grf_names + 1);

    87

    88

	/* Put the original strings */

    89

	for (int i = 0; i < _nb_orig_names; i++) _town_names[n++] = STR_TOWNNAME_ORIGINAL_ENGLISH + i;

    90

    91

	/* Put the grf strings */

    92

	for (int i = 0; i < _nb_grf_names; i++) _town_names[n++] = _grf_names[i];

    93

    94

	/* Put the terminator */

    95

	_town_names[n] = INVALID_STRING_ID;

    96

    97

	/* Sort the strings */

    98

	qsort(&_town_names[0], _nb_orig_names + _nb_grf_names, sizeof(StringID), &StringIDSorter);

    99

}

   100

   101

static inline StringID TownName(int town_name)

   102

{

   103

	if (town_name < _nb_orig_names) return STR_TOWNNAME_ORIGINAL_ENGLISH + town_name;

   104

	town_name -= _nb_orig_names;

   105

	if (town_name < _nb_grf_names) return _grf_names[town_name];

   106

	return STR_UNDEFINED;

   107

}

   108

   109

static int GetCurRes()

   110

{

   111

	int i;

   112

   113

	for (i = 0; i != _num_resolutions; i++) {

   114

		if (_resolutions[i][0] == _screen.width &&

   115

				_resolutions[i][1] == _screen.height) {

   116

			break;

   117

		}

   118

	}

   119

	return i;

   120

}

   121

   122

static inline bool RoadVehiclesAreBuilt()

   123

{

   124

	const Vehicle* v;

   125

   126

	FOR_ALL_VEHICLES(v) {

   127

		if (v->type == VEH_ROAD) return true;

   128

	}

   129

	return false;

   130

}

   131

   132

   133

enum GameOptionsWidgets {

   134

	GAMEOPT_CURRENCY_TXT    =  4,

   135

	GAMEOPT_CURRENCY_BTN,

   136

	GAMEOPT_DISTANCE_TXT    =  7,

   137

	GAMEOPT_DISTANCE_BTN,

   138

	GAMEOPT_ROADSIDE_TXT    = 10,

   139

	GAMEOPT_ROADSIDE_BTN,

   140

	GAMEOPT_TOWNNAME_TXT    = 13,

   141

	GAMEOPT_TOWNNAME_BTN,

   142

	GAMEOPT_AUTOSAVE_TXT    = 16,

   143

	GAMEOPT_AUTOSAVE_BTN,

   144

	GAMEOPT_VEHICLENAME_TXT = 19,

   145

	GAMEOPT_VEHICLENAME_BTN,

   146

	GAMEOPT_VEHICLENAME_SAVE,

   147

	GAMEOPT_LANG_TXT        = 23,

   148

	GAMEOPT_LANG_BTN,

   149

	GAMEOPT_RESOLUTION_TXT  = 26,

   150

	GAMEOPT_RESOLUTION_BTN,

   151

	GAMEOPT_FULLSCREEN,

   152

	GAMEOPT_SCREENSHOT_TXT  = 30,

   153

	GAMEOPT_SCREENSHOT_BTN,

   154

};

   155

   156

static void ShowCustCurrency();

   157

   158

static void GameOptionsWndProc(Window *w, WindowEvent *e)

   159

{

   160

	switch (e->event) {

   161

	case WE_PAINT: {

   162

		int i;

   163

		StringID str = STR_02BE_DEFAULT;

   164

   165

		w->SetWidgetDisabledState(21, !(_vehicle_design_names & 1));

   166

		if (!w->IsWidgetDisabled(21)) str = STR_02BF_CUSTOM;

   167

		SetDParam(0, str);

   168

		SetDParam(1, _currency_specs[_opt_ptr->currency].name);

   169

		SetDParam(2, STR_UNITS_IMPERIAL + _opt_ptr->units);

   170

		SetDParam(3, STR_02E9_DRIVE_ON_LEFT + _opt_ptr->road_side);

   171

		SetDParam(4, TownName(_opt_ptr->town_name));

   172

		SetDParam(5, _autosave_dropdown[_opt_ptr->autosave]);

   173

		SetDParam(6, SPECSTR_LANGUAGE_START + _dynlang.curr);

   174

		i = GetCurRes();

   175

		SetDParam(7, i == _num_resolutions ? STR_RES_OTHER : SPECSTR_RESOLUTION_START + i);

   176

		SetDParam(8, SPECSTR_SCREENSHOT_START + _cur_screenshot_format);

   177

		w->SetWidgetLoweredState(GAMEOPT_FULLSCREEN, _fullscreen);

   178

   179

		DrawWindowWidgets(w);

   180

		DrawString(20, 175, STR_OPTIONS_FULLSCREEN, TC_FROMSTRING); // fullscreen

   181

	} break;

   182

   183

	case WE_CLICK:

   184

		switch (e->we.click.widget) {

   185

		case GAMEOPT_CURRENCY_TXT: case GAMEOPT_CURRENCY_BTN: /* Setup currencies dropdown */

   186

			ShowDropDownMenu(w, BuildCurrencyDropdown(), _opt_ptr->currency, GAMEOPT_CURRENCY_BTN, _game_mode == GM_MENU ? 0 : ~GetMaskOfAllowedCurrencies(), 0);;

   187

			break;

   188

   189

		case GAMEOPT_DISTANCE_TXT: case GAMEOPT_DISTANCE_BTN: /* Setup distance unit dropdown */

   190

			ShowDropDownMenu(w, _units_dropdown, _opt_ptr->units, GAMEOPT_DISTANCE_BTN, 0, 0);

   191

			break;

   192

   193

		case GAMEOPT_ROADSIDE_TXT: case GAMEOPT_ROADSIDE_BTN: { /* Setup road-side dropdown */

   194

			int i = 0;

   195

   196

			/* You can only change the drive side if you are in the menu or ingame with

   197

			 * no vehicles present. In a networking game only the server can change it */

   198

			if ((_game_mode != GM_MENU && RoadVehiclesAreBuilt()) || (_networking && !_network_server))

   199

				i = (-1) ^ (1 << _opt_ptr->road_side); // disable the other value

   200

   201

			ShowDropDownMenu(w, _driveside_dropdown, _opt_ptr->road_side, GAMEOPT_ROADSIDE_BTN, i, 0);

   202

		} break;

   203

   204

		case GAMEOPT_TOWNNAME_TXT: case GAMEOPT_TOWNNAME_BTN: { /* Setup townname dropdown */

   205

			uint sel = 0;

   206

			for (uint i = 0; _town_names[i] != INVALID_STRING_ID; i++) {

   207

				if (_town_names[i] == TownName(_opt_ptr->town_name)) {

   208

					sel = i;

   209

					break;

   210

				}

   211

			}

   212

			ShowDropDownMenu(w, _town_names, sel, GAMEOPT_TOWNNAME_BTN, (_game_mode == GM_MENU) ? 0 : (-1) ^ (1 << sel), 0);

   213

		} break;

   214

   215

		case GAMEOPT_AUTOSAVE_TXT: case GAMEOPT_AUTOSAVE_BTN: /* Setup autosave dropdown */

   216

			ShowDropDownMenu(w, _autosave_dropdown, _opt_ptr->autosave, GAMEOPT_AUTOSAVE_BTN, 0, 0);

   217

			break;

   218

   219

		case GAMEOPT_VEHICLENAME_TXT: case GAMEOPT_VEHICLENAME_BTN: /* Setup customized vehicle-names dropdown */

   220

			ShowDropDownMenu(w, _designnames_dropdown, (_vehicle_design_names & 1) ? 1 : 0, GAMEOPT_VEHICLENAME_BTN, (_vehicle_design_names & 2) ? 0 : 2, 0);

   221

			break;

   222

   223

		case GAMEOPT_VEHICLENAME_SAVE: /* Save customized vehicle-names to disk */

   224

			break;  // not implemented

   225

   226

		case GAMEOPT_LANG_TXT: case GAMEOPT_LANG_BTN: /* Setup interface language dropdown */

   227

			ShowDropDownMenu(w, _dynlang.dropdown, _dynlang.curr, GAMEOPT_LANG_BTN, 0, 0);

   228

			break;

   229

   230

		case GAMEOPT_RESOLUTION_TXT: case GAMEOPT_RESOLUTION_BTN: /* Setup resolution dropdown */

   231

			ShowDropDownMenu(w, BuildDynamicDropdown(SPECSTR_RESOLUTION_START, _num_resolutions), GetCurRes(), GAMEOPT_RESOLUTION_BTN, 0, 0);

   232

			break;

   233

   234

		case GAMEOPT_FULLSCREEN: /* Click fullscreen on/off */

   235

			/* try to toggle full-screen on/off */

   236

			if (!ToggleFullScreen(!_fullscreen)) {

   237

				ShowErrorMessage(INVALID_STRING_ID, STR_FULLSCREEN_FAILED, 0, 0);

   238

			}

   239

			w->SetWidgetLoweredState(GAMEOPT_FULLSCREEN, _fullscreen);

   240

			SetWindowDirty(w);

   241

			break;

   242

   243

		case GAMEOPT_SCREENSHOT_TXT: case GAMEOPT_SCREENSHOT_BTN: /* Setup screenshot format dropdown */

   244

			ShowDropDownMenu(w, BuildDynamicDropdown(SPECSTR_SCREENSHOT_START, _num_screenshot_formats), _cur_screenshot_format, GAMEOPT_SCREENSHOT_BTN, 0, 0);

   245

			break;

   246

		}

   247

		break;

   248

   249

	case WE_DROPDOWN_SELECT:

   250

		switch (e->we.dropdown.button) {

   251

		case GAMEOPT_VEHICLENAME_BTN: /* Vehicle design names */

   252

			if (e->we.dropdown.index == 0) {

   253

				DeleteCustomEngineNames();

   254

				MarkWholeScreenDirty();

   255

			} else if (!(_vehicle_design_names & 1)) {

   256

				LoadCustomEngineNames();

   257

				MarkWholeScreenDirty();

   258

			}

   259

			break;

   260

   261

		case GAMEOPT_CURRENCY_BTN: /* Currency */

   262

			if (e->we.dropdown.index == CUSTOM_CURRENCY_ID) ShowCustCurrency();

   263

			_opt_ptr->currency = e->we.dropdown.index;

   264

			MarkWholeScreenDirty();

   265

			break;

   266

   267

		case GAMEOPT_DISTANCE_BTN: /* Measuring units */

   268

			_opt_ptr->units = e->we.dropdown.index;

   269

			MarkWholeScreenDirty();

   270

			break;

   271

   272

		case GAMEOPT_ROADSIDE_BTN: /* Road side */

   273

			if (_opt_ptr->road_side != e->we.dropdown.index) { // only change if setting changed

   274

				DoCommandP(0, e->we.dropdown.index, 0, NULL, CMD_SET_ROAD_DRIVE_SIDE | CMD_MSG(STR_00B4_CAN_T_DO_THIS));

   275

				MarkWholeScreenDirty();

   276

			}

   277

			break;

   278

   279

		case GAMEOPT_TOWNNAME_BTN: /* Town names */

   280

			if (_game_mode == GM_MENU) {

   281

				for (uint i = 0; _town_names[i] != INVALID_STRING_ID; i++) {

   282

					if (_town_names[e->we.dropdown.index] == TownName(i)) {

   283

						_opt_ptr->town_name = i;

   284

						break;

   285

					}

   286

				}

   287

				InvalidateWindow(WC_GAME_OPTIONS, 0);

   288

			}

   289

			break;

   290

   291

		case GAMEOPT_AUTOSAVE_BTN: /* Autosave options */

   292

			_opt.autosave = _opt_newgame.autosave = e->we.dropdown.index;

   293

			SetWindowDirty(w);

   294

			break;

   295

   296

		case GAMEOPT_LANG_BTN: /* Change interface language */

   297

			ReadLanguagePack(e->we.dropdown.index);

   298

			CheckForMissingGlyphsInLoadedLanguagePack();

   299

			UpdateAllStationVirtCoord();

   300

			MarkWholeScreenDirty();

   301

			break;

   302

   303

		case GAMEOPT_RESOLUTION_BTN: /* Change resolution */

   304

			if (e->we.dropdown.index < _num_resolutions && ChangeResInGame(_resolutions[e->we.dropdown.index][0],_resolutions[e->we.dropdown.index][1]))

   305

				SetWindowDirty(w);

   306

			break;

   307

   308

		case GAMEOPT_SCREENSHOT_BTN: /* Change screenshot format */

   309

			SetScreenshotFormat(e->we.dropdown.index);

   310

			SetWindowDirty(w);

   311

			break;

   312

		}

   313

		break;

   314

   315

	case WE_DESTROY:

   316

		DeleteWindowById(WC_CUSTOM_CURRENCY, 0);

   317

		break;

   318

	}

   319

   320

}

   321

   322

/** Change the side of the road vehicles drive on (server only).

   323

 * @param tile unused

   324

 * @param flags operation to perform

   325

 * @param p1 the side of the road; 0 = left side and 1 = right side

   326

 * @param p2 unused

   327

 */

   328

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

   329

{

   330

	/* Check boundaries and you can only change this if NO vehicles have been built yet,

   331

	 * except in the intro-menu where of course it's always possible to do so. */

   332

	if (p1 > 1 || (_game_mode != GM_MENU && RoadVehiclesAreBuilt())) return CMD_ERROR;

   333

   334

	if (flags & DC_EXEC) {

   335

		_opt_ptr->road_side = p1;

   336

		InvalidateWindow(WC_GAME_OPTIONS,0);

   337

	}

   338

	return CommandCost();

   339

}

   340

   341

static const Widget _game_options_widgets[] = {

   342

{   WWT_CLOSEBOX,   RESIZE_NONE,    14,     0,    10,     0,    13, STR_00C5,                          STR_018B_CLOSE_WINDOW},

   343

{    WWT_CAPTION,   RESIZE_NONE,    14,    11,   369,     0,    13, STR_00B1_GAME_OPTIONS,             STR_018C_WINDOW_TITLE_DRAG_THIS},

   344

{      WWT_PANEL,   RESIZE_NONE,    14,     0,   369,    14,   238, 0x0,                               STR_NULL},

   345

{      WWT_FRAME,   RESIZE_NONE,    14,    10,   179,    20,    55, STR_02E0_CURRENCY_UNITS,           STR_NULL},

   346

{      WWT_INSET,   RESIZE_NONE,    14,    20,   169,    34,    45, STR_02E1,                          STR_02E2_CURRENCY_UNITS_SELECTION},

   347

{    WWT_TEXTBTN,   RESIZE_NONE,    14,   158,   168,    35,    44, STR_0225,                          STR_02E2_CURRENCY_UNITS_SELECTION},

   348

{      WWT_FRAME,   RESIZE_NONE,    14,   190,   359,    20,    55, STR_MEASURING_UNITS,               STR_NULL},

   349

{      WWT_INSET,   RESIZE_NONE,    14,   200,   349,    34,    45, STR_02E4,                          STR_MEASURING_UNITS_SELECTION},

   350

{    WWT_TEXTBTN,   RESIZE_NONE,    14,   338,   348,    35,    44, STR_0225,                          STR_MEASURING_UNITS_SELECTION},

   351

{      WWT_FRAME,   RESIZE_NONE,    14,    10,   179,    62,    97, STR_02E6_ROAD_VEHICLES,            STR_NULL},

   352

{      WWT_INSET,   RESIZE_NONE,    14,    20,   169,    76,    87, STR_02E7,                          STR_02E8_SELECT_SIDE_OF_ROAD_FOR},

   353

{    WWT_TEXTBTN,   RESIZE_NONE,    14,   158,   168,    77,    86, STR_0225,                          STR_02E8_SELECT_SIDE_OF_ROAD_FOR},

   354

{      WWT_FRAME,   RESIZE_NONE,    14,   190,   359,    62,    97, STR_02EB_TOWN_NAMES,               STR_NULL},

   355

{      WWT_INSET,   RESIZE_NONE,    14,   200,   349,    76,    87, STR_02EC,                          STR_02ED_SELECT_STYLE_OF_TOWN_NAMES},

   356

{    WWT_TEXTBTN,   RESIZE_NONE,    14,   338,   348,    77,    86, STR_0225,                          STR_02ED_SELECT_STYLE_OF_TOWN_NAMES},

   357

{      WWT_FRAME,   RESIZE_NONE,    14,    10,   179,   104,   139, STR_02F4_AUTOSAVE,                 STR_NULL},

   358

{      WWT_INSET,   RESIZE_NONE,    14,    20,   169,   118,   129, STR_02F5,                          STR_02F6_SELECT_INTERVAL_BETWEEN},

   359

{    WWT_TEXTBTN,   RESIZE_NONE,    14,   158,   168,   119,   128, STR_0225,                          STR_02F6_SELECT_INTERVAL_BETWEEN},

   360

   361

{      WWT_FRAME,   RESIZE_NONE,    14,    10,   359,   194,   228, STR_02BC_VEHICLE_DESIGN_NAMES,     STR_NULL},

   362

{      WWT_INSET,   RESIZE_NONE,    14,    20,   119,   207,   218, STR_02BD,                          STR_02C1_VEHICLE_DESIGN_NAMES_SELECTION},

   363

{    WWT_TEXTBTN,   RESIZE_NONE,    14,   108,   118,   208,   217, STR_0225,                          STR_02C1_VEHICLE_DESIGN_NAMES_SELECTION},

   364

{    WWT_TEXTBTN,   RESIZE_NONE,    14,   130,   349,   207,   218, STR_02C0_SAVE_CUSTOM_NAMES,        STR_02C2_SAVE_CUSTOMIZED_VEHICLE},

   365

   366

{      WWT_FRAME,   RESIZE_NONE,    14,   190,   359,   104,   139, STR_OPTIONS_LANG,                  STR_NULL},

   367

{      WWT_INSET,   RESIZE_NONE,    14,   200,   349,   118,   129, STR_OPTIONS_LANG_CBO,              STR_OPTIONS_LANG_TIP},

   368

{    WWT_TEXTBTN,   RESIZE_NONE,    14,   338,   348,   119,   128, STR_0225,                          STR_OPTIONS_LANG_TIP},

   369

   370

{      WWT_FRAME,   RESIZE_NONE,    14,    10,   179,   146,   190, STR_OPTIONS_RES,                   STR_NULL},

   371

{      WWT_INSET,   RESIZE_NONE,    14,    20,   169,   160,   171, STR_OPTIONS_RES_CBO,               STR_OPTIONS_RES_TIP},

   372

{    WWT_TEXTBTN,   RESIZE_NONE,    14,   158,   168,   161,   170, STR_0225,                          STR_OPTIONS_RES_TIP},

   373

{    WWT_TEXTBTN,   RESIZE_NONE,    14,   149,   169,   176,   184, STR_EMPTY,                         STR_OPTIONS_FULLSCREEN_TIP},

   374

   375

{      WWT_FRAME,   RESIZE_NONE,    14,   190,   359,   146,   190, STR_OPTIONS_SCREENSHOT_FORMAT,     STR_NULL},

   376

{      WWT_INSET,   RESIZE_NONE,    14,   200,   349,   160,   171, STR_OPTIONS_SCREENSHOT_FORMAT_CBO, STR_OPTIONS_SCREENSHOT_FORMAT_TIP},

   377

{    WWT_TEXTBTN,   RESIZE_NONE,    14,   338,   348,   161,   170, STR_0225,                          STR_OPTIONS_SCREENSHOT_FORMAT_TIP},

   378

   379

{   WIDGETS_END},

   380

};

   381

   382

static const WindowDesc _game_options_desc = {

   383

	WDP_CENTER, WDP_CENTER, 370, 239, 370, 239,

   384

	WC_GAME_OPTIONS, WC_NONE,

   385

	WDF_STD_TOOLTIPS | WDF_STD_BTN | WDF_DEF_WIDGET | WDF_UNCLICK_BUTTONS,

   386

	_game_options_widgets,

   387

	GameOptionsWndProc

   388

};

   389

   390

   391

void ShowGameOptions()

   392

{

   393

	DeleteWindowById(WC_GAME_OPTIONS, 0);

   394

	AllocateWindowDesc(&_game_options_desc);

   395

}

   396

   397

struct GameSettingData {

   398

	int16 min;

   399

	int16 max;

   400

	int16 step;

   401

	StringID str;

   402

};

   403

   404

static const GameSettingData _game_setting_info[] = {

   405

	{  0,   7,  1, STR_NULL},

   406

	{  0,   3,  1, STR_6830_IMMEDIATE},

   407

	{  0,   3,  1, STR_NUM_VERY_LOW},

   408

	{  0,   4,  1, STR_26816_NONE},

   409

	{100, 500, 50, STR_NULL},

   410

	{  2,   4,  1, STR_NULL},

   411

	{  0,   2,  1, STR_6820_LOW},

   412

	{  0,   4,  1, STR_681B_VERY_SLOW},

   413

	{  0,   2,  1, STR_6820_LOW},

   414

	{  0,   2,  1, STR_6823_NONE},

   415

	{  0,   3,  1, STR_6826_X1_5},

   416

	{  0,   2,  1, STR_6820_LOW},

   417

	{  0,   3,  1, STR_682A_VERY_FLAT},

   418

	{  0,   3,  1, STR_VERY_LOW},

   419

	{  0,   1,  1, STR_682E_STEADY},

   420

	{  0,   1,  1, STR_6834_AT_END_OF_LINE_AND_AT_STATIONS},

   421

	{  0,   1,  1, STR_6836_OFF},

   422

	{  0,   2,  1, STR_6839_PERMISSIVE},

   423

};

   424

   425

/*

   426

 * A: competitors

   427

 * B: start time in months / 3

   428

 * C: town count (2 = high, 0 = very low)

   429

 * D: industry count (4 = high, 0 = none)

   430

 * E: inital loan / 1000 (in GBP)

   431

 * F: interest rate

   432

 * G: running costs (0 = low, 2 = high)

   433

 * H: construction speed of competitors (0 = very slow, 4 = very fast)

   434

 * I: intelligence (0-2)

   435

 * J: breakdowns (0 = off, 2 = normal)

   436

 * K: subsidy multiplier (0 = 1.5, 3 = 4.0)

   437

 * L: construction cost (0-2)

   438

 * M: terrain type (0 = very flat, 3 = mountainous)

   439

 * N: amount of water (0 = very low, 3 = high)

   440

 * O: economy (0 = steady, 1 = fluctuating)

   441

 * P: Train reversing (0 = end of line + stations, 1 = end of line)

   442

 * Q: disasters

   443

 * R: area restructuring (0 = permissive, 2 = hostile)

   444

 */

   445

static const GDType _default_game_diff[3][GAME_DIFFICULTY_NUM] = { /*

   446

	 A, B, C, D,   E, F, G, H, I, J, K, L, M, N, O, P, Q, R*/

   447

	{2, 2, 1, 4, 300, 2, 0, 2, 0, 1, 2, 0, 1, 0, 0, 0, 0, 0}, ///< easy

   448

	{4, 1, 1, 3, 150, 3, 1, 3, 1, 2, 1, 1, 2, 1, 1, 1, 1, 1}, ///< medium

   449

	{7, 0, 0, 2, 100, 4, 1, 3, 2, 2, 0, 2, 3, 2, 1, 1, 1, 2}, ///< hard

   450

};

   451

   452

void SetDifficultyLevel(int mode, GameOptions *gm_opt)

   453

{

   454

	int i;

   455

	assert(mode <= 3);

   456

   457

	gm_opt->diff_level = mode;

   458

	if (mode != 3) { // not custom

   459

		for (i = 0; i != GAME_DIFFICULTY_NUM; i++)

   460

			((GDType*)&gm_opt->diff)[i] = _default_game_diff[mode][i];

   461

	}

   462

}

   463

   464

/**

   465

 * Checks the difficulty levels read from the configuration and

   466

 * forces them to be correct when invalid.

   467

 */

   468

void CheckDifficultyLevels()

   469

{

   470

	if (_opt_newgame.diff_level != 3) {

   471

		SetDifficultyLevel(_opt_newgame.diff_level, &_opt_newgame);

   472

	} else {

   473

		for (uint i = 0; i < GAME_DIFFICULTY_NUM; i++) {

   474

			GDType *diff = ((GDType*)&_opt_newgame.diff) + i;

   475

			*diff = Clamp(*diff, _game_setting_info[i].min, _game_setting_info[i].max);

   476

			*diff -= *diff % _game_setting_info[i].step;

   477

		}

   478

	}

   479

}

   480

   481

extern void StartupEconomy();

   482

   483

enum {

   484

	GAMEDIFF_WND_TOP_OFFSET = 45,

   485

	GAMEDIFF_WND_ROWSIZE    = 9

   486

};

   487

   488

/* Temporary holding place of values in the difficulty window until 'Save' is clicked */

   489

static GameOptions _opt_mod_temp;

   490

// 0x383E = (1 << 13) | (1 << 12) | (1 << 11) | (1 << 5) | (1 << 4) | (1 << 3) | (1 << 2) | (1 << 1)

   491

#define DIFF_INGAME_DISABLED_BUTTONS 0x383E

   492