1

/* $Id$ */

     2

     3

/** @file settings_gui.cpp */

     4

     5

#include "stdafx.h"

     6

#include "openttd.h"

     7

#include "currency.h"

     8

#include "table/sprites.h"

     9

#include "table/strings.h"

    10

#include "gui.h"

    11

#include "window_gui.h"

    12

#include "textbuf_gui.h"

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#include "command_func.h"

    14

#include "engine.h"

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#include "screenshot.h"

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#include "newgrf.h"

    17

#include "network/network.h"

    18

#include "town.h"

    19

#include "variables.h"

    20

#include "settings_internal.h"

    21

#include "newgrf_townname.h"

    22

#include "strings_func.h"

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#include "functions.h"

    24

#include "window_func.h"

    25

#include "vehicle_base.h"

    26

#include "core/alloc_func.hpp"

    27

#include "string_func.h"

    28

#include "gfx_func.h"

    29

    30

static uint32 _difficulty_click_a;

    31

static uint32 _difficulty_click_b;

    32

static byte _difficulty_timeout;

    33

    34

static const StringID _units_dropdown[] = {

    35

	STR_UNITS_IMPERIAL,

    36

	STR_UNITS_METRIC,

    37

	STR_UNITS_SI,

    38

	INVALID_STRING_ID

    39

};

    40

    41

static const StringID _driveside_dropdown[] = {

    42

	STR_02E9_DRIVE_ON_LEFT,

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	STR_02EA_DRIVE_ON_RIGHT,

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	INVALID_STRING_ID

    45

};

    46

    47

static const StringID _autosave_dropdown[] = {

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	STR_02F7_OFF,

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	STR_AUTOSAVE_1_MONTH,

    50

	STR_02F8_EVERY_3_MONTHS,

    51

	STR_02F9_EVERY_6_MONTHS,

    52

	STR_02FA_EVERY_12_MONTHS,

    53

	INVALID_STRING_ID,

    54

};

    55

    56

static const StringID _designnames_dropdown[] = {

    57

	STR_02BE_DEFAULT,

    58

	STR_02BF_CUSTOM,

    59

	INVALID_STRING_ID

    60

};

    61

    62

static StringID *BuildDynamicDropdown(StringID base, int num)

    63

{

    64

	static StringID buf[32 + 1];

    65

	StringID *p = buf;

    66

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

    67

	*p = INVALID_STRING_ID;

    68

	return buf;

    69

}

    70

    71

int _nb_orig_names = SPECSTR_TOWNNAME_LAST - SPECSTR_TOWNNAME_START + 1;

    72

static StringID *_town_names = NULL;

    73

static StringID *_grf_names = NULL;

    74

static int _nb_grf_names = 0;

    75

    76

void SortTownGeneratorNames()

    77

{

    78

	int n = 0;

    79

    80

	/* Get Newgrf generators' names */

    81

	free(_grf_names);

    82

	_grf_names = GetGRFTownNameList();

    83

	_nb_grf_names = 0;

    84

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

    85

    86

	/* Prepare the list */

    87

	free(_town_names);

    88

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

    89

    90

	/* Put the original strings */

    91

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

    92

    93

	/* Put the grf strings */

    94

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

    95

    96

	/* Put the terminator */

    97

	_town_names[n] = INVALID_STRING_ID;

    98

    99

	/* Sort the strings */

   100

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

   101

}

   102

   103

static inline StringID TownName(int town_name)

   104

{

   105

	if (town_name < _nb_orig_names) return STR_TOWNNAME_ORIGINAL_ENGLISH + town_name;

   106

	town_name -= _nb_orig_names;

   107

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

   108

	return STR_UNDEFINED;

   109

}

   110

   111

static int GetCurRes()

   112

{

   113

	int i;

   114

   115

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

   116

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

   117

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

   118

			break;

   119

		}

   120

	}

   121

	return i;

   122

}

   123

   124

static inline bool RoadVehiclesAreBuilt()

   125

{

   126

	const Vehicle* v;

   127

   128

	FOR_ALL_VEHICLES(v) {

   129

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

   130

	}

   131

	return false;

   132

}

   133

   134

   135

enum GameOptionsWidgets {

   136

	GAMEOPT_CURRENCY_TXT    =  4,

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	GAMEOPT_CURRENCY_BTN,

   138

	GAMEOPT_DISTANCE_TXT    =  7,

   139

	GAMEOPT_DISTANCE_BTN,

   140

	GAMEOPT_ROADSIDE_TXT    = 10,

   141

	GAMEOPT_ROADSIDE_BTN,

   142

	GAMEOPT_TOWNNAME_TXT    = 13,

   143

	GAMEOPT_TOWNNAME_BTN,

   144

	GAMEOPT_AUTOSAVE_TXT    = 16,

   145

	GAMEOPT_AUTOSAVE_BTN,

   146

	GAMEOPT_VEHICLENAME_TXT = 19,

   147

	GAMEOPT_VEHICLENAME_BTN,

   148

	GAMEOPT_VEHICLENAME_SAVE,

   149

	GAMEOPT_LANG_TXT        = 23,

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	GAMEOPT_LANG_BTN,

   151

	GAMEOPT_RESOLUTION_TXT  = 26,

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	GAMEOPT_RESOLUTION_BTN,

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	GAMEOPT_FULLSCREEN,

   154

	GAMEOPT_SCREENSHOT_TXT  = 30,

   155

	GAMEOPT_SCREENSHOT_BTN,

   156

};

   157

   158

static void ShowCustCurrency();

   159

   160

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

   161

{

   162

	switch (e->event) {

   163

		case WE_PAINT: {

   164

			int i;

   165

			StringID str = STR_02BE_DEFAULT;

   166

   167

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

   168

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

   169

			SetDParam(0, str);

   170

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

   171

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

   172

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

   173

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

   174

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

   175

			SetDParam(6, SPECSTR_LANGUAGE_START + _dynlang.curr);

   176

			i = GetCurRes();

   177

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

   178

			SetDParam(8, SPECSTR_SCREENSHOT_START + _cur_screenshot_format);

   179

			w->SetWidgetLoweredState(GAMEOPT_FULLSCREEN, _fullscreen);

   180

   181

			DrawWindowWidgets(w);

   182

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

   183

		} break;

   184

   185

		case WE_CLICK:

   186

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

   187

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

   188

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

   189

					break;

   190

   191

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

   192

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

   193

					break;

   194

   195

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

   196

					int i = 0;

   197

   198

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

   199

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

   200

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

   201

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

   202

   203

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

   204

				} break;

   205

   206

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

   207

					uint sel = 0;

   208

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

   209

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

   210

							sel = i;

   211

							break;

   212

						}

   213

					}

   214

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

   215

				} break;

   216

   217

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

   218

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

   219

					break;

   220

   221

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

   222

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

   223

					break;

   224

   225

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

   226

					break;  // not implemented

   227

   228

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

   229

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

   230

					break;

   231

   232

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

   233

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

   234

					break;

   235

   236

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

   237

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

   238

					if (!ToggleFullScreen(!_fullscreen)) {

   239

						ShowErrorMessage(INVALID_STRING_ID, STR_FULLSCREEN_FAILED, 0, 0);

   240

					}

   241

					w->SetWidgetLoweredState(GAMEOPT_FULLSCREEN, _fullscreen);

   242

					SetWindowDirty(w);

   243

					break;

   244

   245

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

   246

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

   247

					break;

   248

			}

   249

			break;

   250

   251

		case WE_DROPDOWN_SELECT:

   252

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

   253

				case GAMEOPT_VEHICLENAME_BTN: /* Vehicle design names */

   254

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

   255

						DeleteCustomEngineNames();

   256

						MarkWholeScreenDirty();

   257

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

   258

						LoadCustomEngineNames();

   259

						MarkWholeScreenDirty();

   260

					}

   261

					break;

   262

   263

				case GAMEOPT_CURRENCY_BTN: /* Currency */

   264

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

   265

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

   266

					MarkWholeScreenDirty();

   267

					break;

   268

   269

				case GAMEOPT_DISTANCE_BTN: /* Measuring units */

   270

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

   271

					MarkWholeScreenDirty();

   272

					break;

   273

   274

				case GAMEOPT_ROADSIDE_BTN: /* Road side */

   275

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

   276

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

   277

						MarkWholeScreenDirty();

   278

					}

   279

					break;

   280

   281

				case GAMEOPT_TOWNNAME_BTN: /* Town names */

   282

					if (_game_mode == GM_MENU) {

   283

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

   284

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

   285

								_opt_ptr->town_name = i;

   286

								break;

   287

							}

   288

						}

   289

						InvalidateWindow(WC_GAME_OPTIONS, 0);

   290

					}

   291

					break;

   292

   293

				case GAMEOPT_AUTOSAVE_BTN: /* Autosave options */

   294

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

   295

					SetWindowDirty(w);

   296

					break;

   297

   298

				case GAMEOPT_LANG_BTN: /* Change interface language */

   299

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

   300

					CheckForMissingGlyphsInLoadedLanguagePack();

   301

					UpdateAllStationVirtCoord();

   302

					MarkWholeScreenDirty();

   303

					break;

   304

   305

				case GAMEOPT_RESOLUTION_BTN: /* Change resolution */

   306

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

   307

						SetWindowDirty(w);

   308

					break;

   309

   310

				case GAMEOPT_SCREENSHOT_BTN: /* Change screenshot format */

   311

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

   312

					SetWindowDirty(w);

   313

					break;

   314

			}

   315

			break;

   316

   317

		case WE_DESTROY:

   318

			DeleteWindowById(WC_CUSTOM_CURRENCY, 0);

   319

			break;

   320

	}

   321

   322

}

   323

   324

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

   325

 * @param tile unused

   326

 * @param flags operation to perform

   327

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

   328

 * @param p2 unused

   329

 */

   330

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

   331

{

   332

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

   333

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

   334

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

   335

   336

	if (flags & DC_EXEC) {

   337

		_opt_ptr->road_side = p1;

   338

		InvalidateWindow(WC_GAME_OPTIONS,0);

   339

	}

   340

	return CommandCost();

   341

}

   342

   343

static const Widget _game_options_widgets[] = {

   344

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

   345

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

   346

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

   347

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

   348

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

   349

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

   350

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

   351

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

   352

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

   353

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

   354

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

   355

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

   356

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

   357

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

   358

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

   359

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

   360

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

   361

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

   362

   363

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

   364

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

   365

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

   366

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

   367

   368

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

   369

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

   370

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

   371

   372

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

   373

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

   374

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

   375

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

   376

   377

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

   378

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

   379

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

   380

   381

{   WIDGETS_END},

   382

};

   383

   384

static const WindowDesc _game_options_desc = {

   385

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

   386

	WC_GAME_OPTIONS, WC_NONE,

   387

	WDF_STD_TOOLTIPS | WDF_STD_BTN | WDF_DEF_WIDGET | WDF_UNCLICK_BUTTONS,

   388

	_game_options_widgets,

   389

	GameOptionsWndProc

   390

};

   391

   392

   393

void ShowGameOptions()

   394

{

   395

	DeleteWindowById(WC_GAME_OPTIONS, 0);

   396

	AllocateWindowDesc(&_game_options_desc);

   397

}

   398

   399

struct GameSettingData {

   400

	int16 min;

   401

	int16 max;

   402

	int16 step;

   403

	StringID str;

   404

};

   405

   406

static const GameSettingData _game_setting_info[] = {

   407

	{  0,   7,  1, STR_NULL},

   408

	{  0,   3,  1, STR_6830_IMMEDIATE},

   409

	{  0,   3,  1, STR_NUM_VERY_LOW},

   410

	{  0,   4,  1, STR_26816_NONE},

   411

	{100, 500, 50, STR_NULL},

   412

	{  2,   4,  1, STR_NULL},

   413

	{  0,   2,  1, STR_6820_LOW},

   414

	{  0,   4,  1, STR_681B_VERY_SLOW},

   415

	{  0,   2,  1, STR_6820_LOW},

   416

	{  0,   2,  1, STR_6823_NONE},

   417

	{  0,   3,  1, STR_6826_X1_5},

   418

	{  0,   2,  1, STR_6820_LOW},

   419

	{  0,   3,  1, STR_682A_VERY_FLAT},

   420

	{  0,   3,  1, STR_VERY_LOW},

   421

	{  0,   1,  1, STR_682E_STEADY},

   422

	{  0,   1,  1, STR_6834_AT_END_OF_LINE_AND_AT_STATIONS},

   423

	{  0,   1,  1, STR_6836_OFF},

   424

	{  0,   2,  1, STR_6839_PERMISSIVE},

   425

};

   426

   427

/*

   428

 * A: competitors

   429

 * B: start time in months / 3

   430

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

   431

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

   432

 * E: inital loan / 1000 (in GBP)

   433

 * F: interest rate

   434

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

   435

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

   436

 * I: intelligence (0-2)

   437

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

   438

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

   439

 * L: construction cost (0-2)

   440

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

   441

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

   442

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

   443

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

   444

 * Q: disasters

   445

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

   446

 */

   447

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

   448

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

   449

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

   450

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

   451

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

   452

};

   453

   454

void SetDifficultyLevel(int mode, GameOptions *gm_opt)

   455

{

   456

	int i;

   457

	assert(mode <= 3);

   458

   459

	gm_opt->diff_level = mode;

   460

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

   461

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

   462

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

   463

	}

   464

}

   465

   466

/**

   467

 * Checks the difficulty levels read from the configuration and

   468

 * forces them to be correct when invalid.

   469

 */

   470

void CheckDifficultyLevels()

   471

{

   472

	if (_opt_newgame.diff_level != 3) {

   473

		SetDifficultyLevel(_opt_newgame.diff_level, &_opt_newgame);

   474

	} else {

   475

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

   476

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

   477

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

   478

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

   479

		}

   480

	}

   481

}

   482

   483

extern void StartupEconomy();

   484

   485

enum {

   486

	GAMEDIFF_WND_TOP_OFFSET = 45,

   487

	GAMEDIFF_WND_ROWSIZE    = 9

   488

};

   489

   490

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

   491

static GameOptions _opt_mod_temp;

   492

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

   493

#define DIFF_INGAME_DISABLED_BUTTONS 0x383E