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/* $Id$ */

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/** @file settings_gui.cpp GUI for settings. */

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#include "stdafx.h"

     6

#include "openttd.h"

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#include "currency.h"

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#include "gui.h"

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#include "window_gui.h"

    10

#include "textbuf_gui.h"

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#include "command_func.h"

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#include "engine_func.h"

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#include "screenshot.h"

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#include "newgrf.h"

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#include "network/network.h"

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#include "town.h"

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#include "variables.h"

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#include "settings_internal.h"

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#include "newgrf_townname.h"

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#include "strings_func.h"

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#include "functions.h"

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#include "window_func.h"

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#include "core/alloc_func.hpp"

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#include "string_func.h"

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#include "gfx_func.h"

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#include "waypoint.h"

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#include "widgets/dropdown_type.h"

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#include "widgets/dropdown_func.h"

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#include "station_func.h"

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    31

#include "table/sprites.h"

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#include "table/strings.h"

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    34

static const StringID _units_dropdown[] = {

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	STR_UNITS_IMPERIAL,

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	STR_UNITS_METRIC,

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	STR_UNITS_SI,

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	INVALID_STRING_ID

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};

    40

    41

static const StringID _driveside_dropdown[] = {

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	STR_02E9_DRIVE_ON_LEFT,

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	STR_02EA_DRIVE_ON_RIGHT,

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	INVALID_STRING_ID

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};

    46

    47

static const StringID _autosave_dropdown[] = {

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	STR_02F7_OFF,

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	STR_AUTOSAVE_1_MONTH,

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	STR_02F8_EVERY_3_MONTHS,

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	STR_02F9_EVERY_6_MONTHS,

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	STR_02FA_EVERY_12_MONTHS,

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	INVALID_STRING_ID,

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};

    55

    56

static const StringID _designnames_dropdown[] = {

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	STR_02BE_DEFAULT,

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	STR_02BF_CUSTOM,

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	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;

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}

    70

    71

int _nb_orig_names = SPECSTR_TOWNNAME_LAST - SPECSTR_TOWNNAME_START + 1;

    72

static StringID *_grf_names = NULL;

    73

static int _nb_grf_names = 0;

    74

    75

void InitGRFTownGeneratorNames()

    76

{

    77

	free(_grf_names);

    78

	_grf_names = GetGRFTownNameList();

    79

	_nb_grf_names = 0;

    80

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

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}

    82

    83

static inline StringID TownName(int town_name)

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{

    85

	if (town_name < _nb_orig_names) return STR_TOWNNAME_ORIGINAL_ENGLISH + town_name;

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	town_name -= _nb_orig_names;

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

    88

	return STR_UNDEFINED;

    89

}

    90

    91

static int GetCurRes()

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{

    93

	int i;

    94

    95

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

    98

			break;

    99

		}

   100

	}

   101

	return i;

   102

}

   103

   104

enum GameOptionsWidgets {

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	GAMEOPT_CURRENCY_BTN    =  4,

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	GAMEOPT_DISTANCE_BTN    =  6,

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	GAMEOPT_ROADSIDE_BTN    =  8,

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	GAMEOPT_TOWNNAME_BTN    = 10,

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	GAMEOPT_AUTOSAVE_BTN    = 12,

   110

	GAMEOPT_VEHICLENAME_BTN = 14,

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	GAMEOPT_VEHICLENAME_SAVE,

   112

	GAMEOPT_LANG_BTN        = 17,

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	GAMEOPT_RESOLUTION_BTN  = 19,

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	GAMEOPT_FULLSCREEN,

   115

	GAMEOPT_SCREENSHOT_BTN  = 22,

   116

};

   117

   118

/**

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 * Update/redraw the townnames dropdown

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 * @param w   the window the dropdown belongs to

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 * @param sel the currently selected townname generator

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 */

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static void ShowTownnameDropdown(Window *w, int sel)

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{

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	typedef std::map<StringID, int, StringIDCompare> TownList;

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	TownList townnames;

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   128

	/* Add and sort original townnames generators */

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

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   131

	/* Add and sort newgrf townnames generators */

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	for (int i = 0; i < _nb_grf_names; i++) townnames[_grf_names[i]] = _nb_orig_names + i;

   133

   134

	DropDownList *list = new DropDownList();

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	for (TownList::iterator it = townnames.begin(); it != townnames.end(); it++) {

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		list->push_back(new DropDownListStringItem((*it).first, (*it).second, !(_game_mode == GM_MENU || (*it).second == sel)));

   137

	}

   138

   139

	ShowDropDownList(w, list, sel, GAMEOPT_TOWNNAME_BTN);

   140

}

   141

   142

static void ShowCustCurrency();

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   144

struct GameOptionsWindow : Window {

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	GameSettings *opt;

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   147

	GameOptionsWindow(const WindowDesc *desc) : Window(desc)

   148

	{

   149

		this->opt = (_game_mode == GM_MENU) ? &_settings_newgame : &_settings_game;

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		this->FindWindowPlacementAndResize(desc);

   151

	}

   152

   153

	~GameOptionsWindow()

   154

	{

   155

		DeleteWindowById(WC_CUSTOM_CURRENCY, 0);

   156

	}

   157

   158

	virtual void OnPaint()

   159

	{

   160

		StringID str = STR_02BE_DEFAULT;

   161

   162

		this->SetWidgetDisabledState(GAMEOPT_VEHICLENAME_SAVE, !(_vehicle_design_names & 1));

   163

		if (!this->IsWidgetDisabled(GAMEOPT_VEHICLENAME_SAVE)) str = STR_02BF_CUSTOM;

   164

		SetDParam(0, str);

   165

		SetDParam(1, _currency_specs[this->opt->locale.currency].name);

   166

		SetDParam(2, STR_UNITS_IMPERIAL + this->opt->locale.units);

   167

		SetDParam(3, STR_02E9_DRIVE_ON_LEFT + this->opt->vehicle.road_side);

   168

		SetDParam(4, TownName(this->opt->game_creation.town_name));

   169

		SetDParam(5, _autosave_dropdown[_settings_client.gui.autosave]);

   170

		SetDParam(6, SPECSTR_LANGUAGE_START + _dynlang.curr);

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		int i = GetCurRes();

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

   173

		SetDParam(8, SPECSTR_SCREENSHOT_START + _cur_screenshot_format);

   174

		this->SetWidgetLoweredState(GAMEOPT_FULLSCREEN, _fullscreen);

   175

   176

		this->DrawWidgets();

   177

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

   178

	}

   179

   180

	virtual void OnClick(Point pt, int widget)

   181

	{

   182

		switch (widget) {

   183

			case GAMEOPT_CURRENCY_BTN: // Setup currencies dropdown

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				ShowDropDownMenu(this, BuildCurrencyDropdown(), this->opt->locale.currency, GAMEOPT_CURRENCY_BTN, _game_mode == GM_MENU ? 0 : ~GetMaskOfAllowedCurrencies(), 0);

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				break;

   186

   187

			case GAMEOPT_DISTANCE_BTN: // Setup distance unit dropdown

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				ShowDropDownMenu(this, _units_dropdown, this->opt->locale.units, GAMEOPT_DISTANCE_BTN, 0, 0);

   189

				break;

   190

   191

			case GAMEOPT_ROADSIDE_BTN: { // Setup road-side dropdown

   192

				int i = 0;

   193

				extern bool RoadVehiclesAreBuilt();

   194

   195

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

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

   197

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

   198

					i = (-1) ^ (1 << this->opt->vehicle.road_side); // disable the other value

   199

				}

   200

   201

				ShowDropDownMenu(this, _driveside_dropdown, this->opt->vehicle.road_side, GAMEOPT_ROADSIDE_BTN, i, 0);

   202

			} break;

   203

   204

			case GAMEOPT_TOWNNAME_BTN: // Setup townname dropdown

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				ShowTownnameDropdown(this, this->opt->game_creation.town_name);

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				break;

   207

   208

			case GAMEOPT_AUTOSAVE_BTN: // Setup autosave dropdown

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				ShowDropDownMenu(this, _autosave_dropdown, _settings_client.gui.autosave, GAMEOPT_AUTOSAVE_BTN, 0, 0);

   210

				break;

   211

   212

			case GAMEOPT_VEHICLENAME_BTN: // Setup customized vehicle-names dropdown

   213

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

   214

				break;

   215

   216

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

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				break;  // not implemented

   218

   219

			case GAMEOPT_LANG_BTN: { // Setup interface language dropdown

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				typedef std::map<StringID, int, StringIDCompare> LangList;

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   222

				/* Sort language names */

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				LangList langs;

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				for (int i = 0; i < _dynlang.num; i++) langs[SPECSTR_LANGUAGE_START + i] = i;

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   226

				DropDownList *list = new DropDownList();

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				for (LangList::iterator it = langs.begin(); it != langs.end(); it++) {

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					list->push_back(new DropDownListStringItem((*it).first, (*it).second, false));

   229

				}

   230

   231

				ShowDropDownList(this, list, _dynlang.curr, GAMEOPT_LANG_BTN);

   232

			} break;

   233

   234

			case GAMEOPT_RESOLUTION_BTN: // Setup resolution dropdown

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

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				break;

   237

   238

			case GAMEOPT_FULLSCREEN: // Click fullscreen on/off

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

   240

				if (!ToggleFullScreen(!_fullscreen)) {

   241

					ShowErrorMessage(INVALID_STRING_ID, STR_FULLSCREEN_FAILED, 0, 0);

   242

				}

   243

				this->SetWidgetLoweredState(GAMEOPT_FULLSCREEN, _fullscreen);

   244

				this->SetDirty();

   245

				break;

   246

   247

			case GAMEOPT_SCREENSHOT_BTN: // Setup screenshot format dropdown

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

   249

				break;

   250

		}

   251

	}

   252

   253

	virtual void OnDropdownSelect(int widget, int index)

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	{

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		switch (widget) {

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			case GAMEOPT_VEHICLENAME_BTN: // Vehicle design names

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				if (index == 0) {

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					DeleteCustomEngineNames();

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					MarkWholeScreenDirty();

   260

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

   261

					LoadCustomEngineNames();

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					MarkWholeScreenDirty();

   263

				}

   264

				break;

   265

   266

			case GAMEOPT_CURRENCY_BTN: /* Currency */

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				if (index == CUSTOM_CURRENCY_ID) ShowCustCurrency();

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				this->opt->locale.currency = index;

   269

				MarkWholeScreenDirty();

   270

				break;

   271

   272

			case GAMEOPT_DISTANCE_BTN: // Measuring units

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				this->opt->locale.units = index;

   274

				MarkWholeScreenDirty();

   275

				break;

   276

   277

			case GAMEOPT_ROADSIDE_BTN: // Road side

   278

				if (this->opt->vehicle.road_side != index) { // only change if setting changed

   279

					DoCommandP(0, index, 0, NULL, CMD_SET_ROAD_DRIVE_SIDE | CMD_MSG(STR_00B4_CAN_T_DO_THIS));

   280

					MarkWholeScreenDirty();

   281

				}

   282

				break;

   283

   284

			case GAMEOPT_TOWNNAME_BTN: // Town names

   285

				if (_game_mode == GM_MENU) {

   286

					this->opt->game_creation.town_name = index;

   287

					InvalidateWindow(WC_GAME_OPTIONS, 0);

   288

				}

   289

				break;

   290

   291

			case GAMEOPT_AUTOSAVE_BTN: // Autosave options

   292

				_settings_client.gui.autosave = index;

   293

				this->SetDirty();

   294

				break;

   295

   296

			case GAMEOPT_LANG_BTN: // Change interface language

   297

				ReadLanguagePack(index);

   298

				CheckForMissingGlyphsInLoadedLanguagePack();

   299

				UpdateAllStationVirtCoord();

   300

				UpdateAllWaypointSigns();

   301

				MarkWholeScreenDirty();

   302

				break;

   303

   304

			case GAMEOPT_RESOLUTION_BTN: // Change resolution

   306

					this->SetDirty();

   307

				}

   308

				break;

   309

   310

			case GAMEOPT_SCREENSHOT_BTN: // Change screenshot format

   311

				SetScreenshotFormat(index);

   312

				this->SetDirty();

   313

				break;

   314

		}

   315

	}

   316

};

   317

   318

static const Widget _game_options_widgets[] = {

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

   320

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

   321

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

   322

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

   323

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

   324

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

   325

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

   326

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

   327

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

   328

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

   329

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

   330

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

   331

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

   332

   333

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

   334

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

   335

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

   336

   337

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

   338

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

   339

   340

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

   341

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

   342

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

   343

   344

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

   345

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

   346

   347

{   WIDGETS_END},

   348

};

   349

   350

static const WindowDesc _game_options_desc = {

   351

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

   352

	WC_GAME_OPTIONS, WC_NONE,

   353

	WDF_STD_TOOLTIPS | WDF_STD_BTN | WDF_DEF_WIDGET | WDF_UNCLICK_BUTTONS,

   354

	_game_options_widgets,

   355

};

   356

   357

   358

void ShowGameOptions()

   359

{

   360

	DeleteWindowById(WC_GAME_OPTIONS, 0);

   361

	new GameOptionsWindow(&_game_options_desc);

   362

}

   363

   364

extern void StartupEconomy();

   365

   366

/* Widget definition for the game difficulty settings window */

   367

static const Widget _game_difficulty_widgets[] = {

   368

{   WWT_CLOSEBOX,   RESIZE_NONE,    10,     0,    10,     0,    13, STR_00C5,                     STR_018B_CLOSE_WINDOW},           // GDW_CLOSEBOX

   369

{    WWT_CAPTION,   RESIZE_NONE,    10,    11,   369,     0,    13, STR_6800_DIFFICULTY_LEVEL,    STR_018C_WINDOW_TITLE_DRAG_THIS}, // GDW_CAPTION

   370

{      WWT_PANEL,   RESIZE_NONE,    10,     0,   369,    14,    41, 0x0,                          STR_NULL},                        // GDW_UPPER_BG

   371

{ WWT_PUSHTXTBTN,   RESIZE_NONE,     3,    10,    96,    16,    27, STR_6801_EASY,                STR_NULL},                        // GDW_LVL_EASY

   372

{ WWT_PUSHTXTBTN,   RESIZE_NONE,     3,    97,   183,    16,    27, STR_6802_MEDIUM,              STR_NULL},                        // GDW_LVL_MEDIUM

   373

{ WWT_PUSHTXTBTN,   RESIZE_NONE,     3,   184,   270,    16,    27, STR_6803_HARD,                STR_NULL},                        // GDW_LVL_HARD

   374

{ WWT_PUSHTXTBTN,   RESIZE_NONE,     3,   271,   357,    16,    27, STR_6804_CUSTOM,              STR_NULL},                        // GDW_LVL_CUSTOM

   375

{    WWT_TEXTBTN,   RESIZE_NONE,     6,    10,   357,    28,    39, STR_6838_SHOW_HI_SCORE_CHART, STR_NULL},                        // GDW_HIGHSCORE

   376

{      WWT_PANEL,   RESIZE_NONE,    10,     0,   369,    42,   262, 0x0,                          STR_NULL},                        // GDW_SETTING_BG

   377

{      WWT_PANEL,   RESIZE_NONE,    10,     0,   369,   263,   278, 0x0,                          STR_NULL},                        // GDW_LOWER_BG

   378

{ WWT_PUSHTXTBTN,   RESIZE_NONE,     3,   105,   185,   265,   276, STR_OPTIONS_SAVE_CHANGES,     STR_NULL},                        // GDW_ACCEPT

   379

{ WWT_PUSHTXTBTN,   RESIZE_NONE,     3,   186,   266,   265,   276, STR_012E_CANCEL,              STR_NULL},                        // GDW_CANCEL

   380

{   WIDGETS_END},

   381

};

   382

   383

/* Window definition for the game difficulty settings window */

   384

static const WindowDesc _game_difficulty_desc = {

   385

	WDP_CENTER, WDP_CENTER, 370, 279, 370, 279,

   386

	WC_GAME_OPTIONS, WC_NONE,

   387

	WDF_STD_TOOLTIPS | WDF_STD_BTN | WDF_DEF_WIDGET,

   388

	_game_difficulty_widgets,

   389

};

   390

   391

void SetDifficultyLevel(int mode, DifficultySettings *gm_opt);

   392

   393

struct GameDifficultyWindow : public Window {

   394

private:

   395

	static const uint GAME_DIFFICULTY_NUM = 18;

   396

	bool clicked_increase;

   397

	uint8 clicked_button;

   398

	uint8 timeout;

   399

   400

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

   401

	GameSettings opt_mod_temp;

   402

   403

	enum {

   404

		GAMEDIFF_WND_TOP_OFFSET = 45,

   405

		GAMEDIFF_WND_ROWSIZE    = 9,

   406

		NO_SETTINGS_BUTTON = 0xFF,

   407

	};

   408

   409

	/* Names of the game difficulty settings window */

   410

	enum GameDifficultyWidgets {

   411

		GDW_CLOSEBOX = 0,

   412

		GDW_CAPTION,

   413

		GDW_UPPER_BG,

   414

		GDW_LVL_EASY,

   415

		GDW_LVL_MEDIUM,

   416

		GDW_LVL_HARD,

   417

		GDW_LVL_CUSTOM,

   418

		GDW_HIGHSCORE,

   419

		GDW_SETTING_BG,

   420

		GDW_LOWER_BG,

   421

		GDW_ACCEPT,

   422

		GDW_CANCEL,

   423

	};

   424

   425

public:

   426

	GameDifficultyWindow() : Window(&_game_difficulty_desc)

   427

	{

   428

		/* Copy current settings (ingame or in intro) to temporary holding place

   429

		 * change that when setting stuff, copy back on clicking 'OK' */

   430

		this->opt_mod_temp = (_game_mode == GM_MENU) ? _settings_newgame : _settings_game;

   431

		this->clicked_increase = false;

   432

		this->clicked_button = NO_SETTINGS_BUTTON;

   433

		this->timeout = 0;

   434

		/* Hide the closebox to make sure that the user aborts or confirms his changes */

   435

		this->HideWidget(GDW_CLOSEBOX);

   436

		this->widget[GDW_CAPTION].left = 0;

   437

		/* Setup disabled buttons when creating window

   438

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

   439

		this->SetWidgetsDisabledState(_game_mode == GM_NORMAL,

   440

			GDW_LVL_EASY,

   441

			GDW_LVL_MEDIUM,

   442

			GDW_LVL_HARD,

   443

			GDW_LVL_CUSTOM,

   444

			WIDGET_LIST_END);

   445

		this->SetWidgetDisabledState(GDW_HIGHSCORE, _game_mode == GM_EDITOR || _networking); // highscore chart in multiplayer

   446

		this->SetWidgetDisabledState(GDW_ACCEPT, _networking && !_network_server); // Save-button in multiplayer (and if client)

   447

		this->LowerWidget(GDW_LVL_EASY + this->opt_mod_temp.difficulty.diff_level);

   448

		this->FindWindowPlacementAndResize(&_game_difficulty_desc);

   449

	}

   450

   451

	virtual void OnPaint()

   452

	{

   453

		this->DrawWidgets();

   454

   455

		uint i;

   456

		const SettingDesc *sd = GetPatchFromName("difficulty.max_no_competitors", &i);

   457

		int y = GAMEDIFF_WND_TOP_OFFSET;

   458

		for (i = 0; i < GAME_DIFFICULTY_NUM; i++, sd++) {

   459

			const SettingDescBase *sdb = &sd->desc;

   460

			int32 value = (int32)ReadValue(GetVariableAddress(&this->opt_mod_temp, &sd->save), sd->save.conv);

   461

			bool editable = (_game_mode == GM_MENU || (sdb->flags & SGF_NEWGAME_ONLY) == 0);

   462

   463

			DrawArrowButtons(5, y, 3,

   464

					(this->clicked_button == i) ? 1 + !!this->clicked_increase : 0,

   465

					editable && sdb->min != value,

   466

					editable && sdb->max != value);

   467

   468

			value += sdb->str;

   469

			SetDParam(0, value);

   470

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

   471

   472

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

   473

		}

   474

	}

   475

   476

	virtual void OnClick(Point pt, int widget)

   477

	{

   478

		switch (widget) {

   479

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

   480

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

   481

				if (_networking && !_network_server) return;

   482

   483

				const int x = pt.x - 5;

   484

				if (!IsInsideMM(x, 0, 21)) return; // Button area

   485

   486

				const int y = pt.y - GAMEDIFF_WND_TOP_OFFSET;

   487

				if (y < 0) return;

   488

   489

				/* Get button from Y coord. */

   490

				const uint8 btn = y / (GAMEDIFF_WND_ROWSIZE + 2);

   491

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

   492