1

/* $Id$ */

     2

     3

/** @file settings_gui.cpp */

     4

     5

#include "stdafx.h"

     6

#include "openttd.h"

     7

#include "currency.h"

     8

#include "functions.h"

     9

#include "string.h"

    10

#include "strings.h" // XXX GetCurrentCurrencyRate()

    11

#include "table/sprites.h"

    12

#include "table/strings.h"

    13

#include "window.h"

    14

#include "gui.h"

    15

#include "gfx.h"

    16

#include "command.h"

    17

#include "engine.h"

    18

#include "screenshot.h"

    19

#include "newgrf.h"

    20

#include "network/network.h"

    21

#include "town.h"

    22

#include "variables.h"

    23

#include "settings.h"

    24

#include "vehicle.h"

    25

#include "date.h"

    26

#include "helpers.hpp"

    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

static int GetCurRes()

    70

{

    71

	int i;

    72

    73

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

    74

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

    75

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

    76

			break;

    77

		}

    78

	}

    79

	return i;

    80

}

    81

    82

static inline bool RoadVehiclesAreBuilt()

    83

{

    84

	const Vehicle* v;

    85

    86

	FOR_ALL_VEHICLES(v) {

    87

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

    88

	}

    89

	return false;

    90

}

    91

    92

    93

static void ShowCustCurrency();

    94

    95

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

    96

{

    97

	switch (e->event) {

    98

	case WE_PAINT: {

    99

		int i;

   100

		StringID str = STR_02BE_DEFAULT;

   101

   102

		SetWindowWidgetDisabledState(w, 21, !(_vehicle_design_names & 1));

   103

		if (!IsWindowWidgetDisabled(w, 21)) str = STR_02BF_CUSTOM;

   104

		SetDParam(0, str);

   105

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

   106

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

   107

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

   108

		SetDParam(4, STR_TOWNNAME_ORIGINAL_ENGLISH + _opt_ptr->town_name);

   109

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

   110

		SetDParam(6, SPECSTR_LANGUAGE_START + _dynlang.curr);

   111

		i = GetCurRes();

   112

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

   113

		SetDParam(8, SPECSTR_SCREENSHOT_START + _cur_screenshot_format);

   114

		SetWindowWidgetLoweredState(w, 28, _fullscreen);

   115

   116

		DrawWindowWidgets(w);

   117

		DrawString(20, 175, STR_OPTIONS_FULLSCREEN, 0); // fullscreen

   118

	} break;

   119

   120

	case WE_CLICK:

   121

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

   122

		case 4: case 5: /* Setup currencies dropdown */

   123

			ShowDropDownMenu(w, BuildCurrencyDropdown(), _opt_ptr->currency, 5, _game_mode == GM_MENU ? 0 : ~GetMaskOfAllowedCurrencies(), 0);;

   124

			return;

   125

		case 7: case 8: /* Setup distance unit dropdown */

   126

			ShowDropDownMenu(w, _units_dropdown, _opt_ptr->units, 8, 0, 0);

   127

			return;

   128

		case 10: case 11: { /* Setup road-side dropdown */

   129

			int i = 0;

   130

   131

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

   132

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

   133

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

   134

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

   135

   136

			ShowDropDownMenu(w, _driveside_dropdown, _opt_ptr->road_side, 11, i, 0);

   137

		} return;

   138

		case 13: case 14: { /* Setup townname dropdown */

   139

			int i = _opt_ptr->town_name;

   140

			ShowDropDownMenu(w, BuildDynamicDropdown(STR_TOWNNAME_ORIGINAL_ENGLISH, SPECSTR_TOWNNAME_LAST - SPECSTR_TOWNNAME_START + 1), i, 14, (_game_mode == GM_MENU) ? 0 : (-1) ^ (1 << i), 0);

   141

			return;

   142

		}

   143

		case 16: case 17: /* Setup autosave dropdown */

   144

			ShowDropDownMenu(w, _autosave_dropdown, _opt_ptr->autosave, 17, 0, 0);

   145

			return;

   146

		case 19: case 20: /* Setup customized vehicle-names dropdown */

   147

			ShowDropDownMenu(w, _designnames_dropdown, (_vehicle_design_names & 1) ? 1 : 0, 20, (_vehicle_design_names & 2) ? 0 : 2, 0);

   148

			return;

   149

		case 21: /* Save customized vehicle-names to disk */

   150

			return;

   151

		case 23: case 24: /* Setup interface language dropdown */

   152

			ShowDropDownMenu(w, _dynlang.dropdown, _dynlang.curr, 24, 0, 0);

   153

			return;

   154

		case 26: case 27: /* Setup resolution dropdown */

   155

			ShowDropDownMenu(w, BuildDynamicDropdown(SPECSTR_RESOLUTION_START, _num_resolutions), GetCurRes(), 27, 0, 0);

   156

			return;

   157

		case 28: /* Click fullscreen on/off */

   158

			SetWindowWidgetLoweredState(w, 28, !_fullscreen);

   159

			ToggleFullScreen(!_fullscreen); // toggle full-screen on/off

   160

			SetWindowDirty(w);

   161

			return;

   162

		case 30: case 31: /* Setup screenshot format dropdown */

   163

			ShowDropDownMenu(w, BuildDynamicDropdown(SPECSTR_SCREENSHOT_START, _num_screenshot_formats), _cur_screenshot_format, 31, 0, 0);

   164

			return;

   165

		}

   166

		break;

   167

   168

	case WE_DROPDOWN_SELECT:

   169

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

   170

		case 20: /* Vehicle design names */

   171

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

   172

				DeleteCustomEngineNames();

   173

				MarkWholeScreenDirty();

   174

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

   175

				LoadCustomEngineNames();

   176

				MarkWholeScreenDirty();

   177

			}

   178

			break;

   179

		case 5: /* Currency */

   180

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

   181

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

   182

			MarkWholeScreenDirty();

   183

			break;

   184

		case 8: /* Measuring units */

   185

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

   186

			MarkWholeScreenDirty();

   187

			break;

   188

		case 11: /* Road side */

   189

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

   190

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

   191

				MarkWholeScreenDirty();

   192

			}

   193

			break;

   194

		case 14: /* Town names */

   195

			if (_game_mode == GM_MENU) {

   196

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

   197

				InvalidateWindow(WC_GAME_OPTIONS, 0);

   198

			}

   199

			break;

   200

		case 17: /* Autosave options */

   201

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

   202

			SetWindowDirty(w);

   203

			break;

   204

		case 24: /* Change interface language */

   205

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

   207

			MarkWholeScreenDirty();

   208

			break;

   209

		case 27: /* Change resolution */

   210

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

   211

				SetWindowDirty(w);

   212

			break;

   213

		case 31: /* Change screenshot format */

   214

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

   215

			SetWindowDirty(w);

   216

			break;

   217

		}

   218

		break;

   219

   220

	case WE_DESTROY:

   221

		DeleteWindowById(WC_CUSTOM_CURRENCY, 0);

   222

		break;

   223

	}

   224

   225

}

   226

   227

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

   228

 * @param tile unused

   229

 * @param flags operation to perform

   230

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

   231

 * @param p2 unused

   232

 */

   233

int32 CmdSetRoadDriveSide(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)

   234

{

   235

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

   236

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

   237

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

   238

   239

	if (flags & DC_EXEC) {

   240

		_opt_ptr->road_side = p1;

   241

		InvalidateWindow(WC_GAME_OPTIONS,0);

   242

	}

   243

	return 0;

   244

}

   245

   246

static const Widget _game_options_widgets[] = {

   247

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

   248

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

   249

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

   250

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

   251

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

   252

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

   253

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

   254

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

   255

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

   256

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

   257

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

   258

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

   259

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

   260

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

   261

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

   262

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

   263

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

   264

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

   265

   266

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

   267

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

   268

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

   269

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

   270

   271

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

   272

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

   273

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

   274

   275

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

   276

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

   277

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

   278

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

   279

   280

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

   281

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

   282

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

   283

   284

{   WIDGETS_END},

   285

};

   286

   287

static const WindowDesc _game_options_desc = {

   288

	WDP_CENTER, WDP_CENTER, 370, 239,

   289

	WC_GAME_OPTIONS, WC_NONE,

   290

	WDF_STD_TOOLTIPS | WDF_STD_BTN | WDF_DEF_WIDGET | WDF_UNCLICK_BUTTONS,

   291

	_game_options_widgets,

   292

	GameOptionsWndProc

   293

};

   294

   295

   296

void ShowGameOptions()

   297

{

   298

	DeleteWindowById(WC_GAME_OPTIONS, 0);

   299

	AllocateWindowDesc(&_game_options_desc);

   300

}

   301

   302

struct GameSettingData {

   303

	int16 min;

   304

	int16 max;

   305

	int16 step;

   306

	StringID str;

   307

};

   308

   309

static const GameSettingData _game_setting_info[] = {

   310

	{  0,   7,  1, STR_NULL},

   311

	{  0,   3,  1, STR_6830_IMMEDIATE},

   314

	{100, 500, 50, STR_NULL},

   315

	{  2,   4,  1, STR_NULL},

   316

	{  0,   2,  1, STR_6820_LOW},

   317

	{  0,   4,  1, STR_681B_VERY_SLOW},

   318

	{  0,   2,  1, STR_6820_LOW},

   319

	{  0,   2,  1, STR_6823_NONE},

   320

	{  0,   3,  1, STR_6826_X1_5},

   321

	{  0,   2,  1, STR_6820_LOW},

   322

	{  0,   3,  1, STR_682A_VERY_FLAT},

   323

	{  0,   3,  1, STR_VERY_LOW},

   324

	{  0,   1,  1, STR_682E_STEADY},

   325

	{  0,   1,  1, STR_6834_AT_END_OF_LINE_AND_AT_STATIONS},

   326

	{  0,   1,  1, STR_6836_OFF},

   327

	{  0,   2,  1, STR_6839_PERMISSIVE},

   328

	{  0,   2,  1, STR_6820_LOW},

   329

	{  0,   3,  1, STR_6840_PRIMITIVE}

   330

};

   331

   332

/*

   333

 * A: competitors

   334

 * B: start time in months / 3

   337

 * E: inital loan / 1000 (in GBP)

   338

 * F: interest rate

   339

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

   340

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

   341

 * I: intelligence (0-2)

   342

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

   343

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

   344

 * L: construction cost (0-2)

   345

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

   346

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

   347

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

   348

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

   349

 * Q: disasters

   350

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

   351

 * S: Economic Growth

   352

 * T: Economic Model

   353

 */

   354

static const int16 _default_game_diff[3][GAME_DIFFICULTY_NUM] = { /*

   355

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

   358

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

   359

};

   360

   361

void SetDifficultyLevel(int mode, GameOptions *gm_opt)

   362

{

   363

	int i;

   364

	assert(mode <= 3);

   365

   366

	gm_opt->diff_level = mode;

   367

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

   368

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

   369

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

   370

	}

   371

}

   372

   373

/**

   374

 * Checks the difficulty levels read from the configuration and

   375

 * forces them to be correct when invalid.

   376

 */

   377

void CheckDifficultyLevels()

   378

{

   379

	if (_opt_newgame.diff_level != 3) {

   380

		SetDifficultyLevel(_opt_newgame.diff_level, &_opt_newgame);

   381

	} else {

   382

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

   383

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

   384

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

   385

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

   386

		}

   387

	}

   388

}

   389

   390

extern void StartupEconomy();

   391

   392

enum {

   393

	GAMEDIFF_WND_TOP_OFFSET = 45,

   394

	GAMEDIFF_WND_ROWSIZE    = 9

   395

};

   396

   397

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

   398

static GameOptions _opt_mod_temp;

   399

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

   400

#define DIFF_INGAME_DISABLED_BUTTONS 0x383E

   401

   402

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

   403

{

   404

	switch (e->event) {

   405

	case WE_CREATE: // Setup disabled buttons when creating window

   406

		/* disable all other difficulty buttons during gameplay except for 'custom' */

   407

		SetWindowWidgetDisabledState(w,  3, _game_mode == GM_NORMAL);

   408

		SetWindowWidgetDisabledState(w,  4, _game_mode == GM_NORMAL);

   409

		SetWindowWidgetDisabledState(w,  5, _game_mode == GM_NORMAL);

   410

		SetWindowWidgetDisabledState(w,  6, _game_mode == GM_NORMAL);

   411

		SetWindowWidgetDisabledState(w,  7, _game_mode == GM_EDITOR || _networking); // highscore chart in multiplayer

   412

		SetWindowWidgetDisabledState(w, 10, _networking && !_network_server); // Save-button in multiplayer (and if client)

   413

		LowerWindowWidget(w, _opt_mod_temp.diff_level + 3);

   414

   415

		break;

   416

	case WE_PAINT: {

   417

		uint32 click_a, click_b, disabled;

   418

		int i;

   419

		int y, value;

   420

   421

		DrawWindowWidgets(w);

   422

   423

		click_a = _difficulty_click_a;

   424

		click_b = _difficulty_click_b;

   425

   426

		/* XXX - Disabled buttons in normal gameplay. Bitshifted for each button to see if

   427

		 * that bit is set. If it is set, the button is disabled */

   428

		disabled = (_game_mode == GM_NORMAL) ? DIFF_INGAME_DISABLED_BUTTONS : 0;

   429

   430

		y = GAMEDIFF_WND_TOP_OFFSET;

   431

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

   432

			DrawFrameRect( 5, y,  5 + 8, y + 8, 3, HASBIT(click_a, i) ? FR_LOWERED : FR_NONE);

   433

			DrawFrameRect(15, y, 15 + 8, y + 8, 3, HASBIT(click_b, i) ? FR_LOWERED : FR_NONE);

   434

			if (HASBIT(disabled, i) || (_networking && !_network_server)) {

   435

				int color = (1 << PALETTE_MODIFIER_GREYOUT) | _colour_gradient[COLOUR_YELLOW][2];

   436

				GfxFillRect( 6, y + 1,  6 + 8, y + 8, color);

   437

				GfxFillRect(16, y + 1, 16 + 8, y + 8, color);

   438

			}

   439

   440

			DrawStringCentered(10, y, STR_6819, 0);

   441

			DrawStringCentered(20, y, STR_681A, 0);

   442

   443

   444

			value = _game_setting_info[i].str + ((int*)&_opt_mod_temp.diff)[i];

   445

			if (i == 4) value *= 1000; // XXX - handle currency option

   446

			SetDParam(0, value);

   447

			DrawString(30, y, STR_6805_MAXIMUM_NO_COMPETITORS + i, 0);

   448

   449

			y += GAMEDIFF_WND_ROWSIZE + 2; // space items apart a bit

   450

		}

   451

	} break;

   452

   453

	case WE_CLICK:

   454

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

   455

		case 8: { /* Difficulty settings widget, decode click */

   456

			const GameSettingData *info;

   457

			int x, y;

   458

			uint btn, dis;

   459

			int16 val;

   460

   461

			/* Don't allow clients to make any changes */

   462

			if  (_networking && !_network_server)

   463

				return;

   464

   465

			x = e->we.click.pt.x - 5;

   466

			if (!IS_INT_INSIDE(x, 0, 21)) // Button area

   467

				return;

   468

   469

			y = e->we.click.pt.y - GAMEDIFF_WND_TOP_OFFSET;

   470

			if (y < 0)

   471

				return;

   472

   473

			/* Get button from Y coord. */

   474

			btn = y / (GAMEDIFF_WND_ROWSIZE + 2);

   475

			if (btn >= GAME_DIFFICULTY_NUM || y % (GAMEDIFF_WND_ROWSIZE + 2) >= 9)

   476

				return;

   477

   478

			/* Clicked disabled button? */

   479

			dis = (_game_mode == GM_NORMAL) ? DIFF_INGAME_DISABLED_BUTTONS : 0;

   480

   481

			if (HASBIT(dis, btn))

   482

				return;

   483

   484

			_difficulty_timeout = 5;

   485

   486

			val = ((int*)&_opt_mod_temp.diff)[btn];

   487

   488

			info = &_game_setting_info[btn]; // get information about the difficulty setting

   489

			if (x >= 10) {

   490

				// Increase button clicked

   491

				val = min(val + info->step, info->max);

   492

				SETBIT(_difficulty_click_b, btn);