1

#include "stdafx.h"

     2

#include "ttd.h"

     3

#include "string.h"

     4

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

     5

#include "table/sprites.h"

     6

#include "table/strings.h"

     7

#include "window.h"

     8

#include "gui.h"

     9

#include "gfx.h"

    10

#include "command.h"

    11

#include "engine.h"

    12

#include "screenshot.h"

    13

#include "newgrf.h"

    14

#include "network.h"

    15

#include "console.h"

    16

#include "town.h"

    17

    18

static uint32 _difficulty_click_a;

    19

static uint32 _difficulty_click_b;

    20

static byte _difficulty_timeout;

    21

    22

extern const StringID _currency_string_list[];

    23

extern uint GetMaskOfAllowedCurrencies(void);

    24

    25

static const StringID _distances_dropdown[] = {

    26

	STR_0139_IMPERIAL_MILES,

    27

	STR_013A_METRIC_KILOMETERS,

    28

	INVALID_STRING_ID

    29

};

    30

    31

static const StringID _driveside_dropdown[] = {

    32

	STR_02E9_DRIVE_ON_LEFT,

    33

	STR_02EA_DRIVE_ON_RIGHT,

    34

	INVALID_STRING_ID

    35

};

    36

    37

static const StringID _autosave_dropdown[] = {

    38

	STR_02F7_OFF,

    39

	STR_AUTOSAVE_1_MONTH,

    40

	STR_02F8_EVERY_3_MONTHS,

    41

	STR_02F9_EVERY_6_MONTHS,

    42

	STR_02FA_EVERY_12_MONTHS,

    43

	INVALID_STRING_ID,

    44

};

    45

    46

static const StringID _designnames_dropdown[] = {

    47

	STR_02BE_DEFAULT,

    48

	STR_02BF_CUSTOM,

    49

	INVALID_STRING_ID

    50

};

    51

    52

static StringID *BuildDynamicDropdown(StringID base, int num)

    53

{

    54

	static StringID buf[32 + 1];

    55

	StringID *p = buf;

    56

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

    57

	*p = INVALID_STRING_ID;

    58

	return buf;

    59

}

    60

    61

static int GetCurRes(void)

    62

{

    63

	int i;

    64

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

    65

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

    66

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

    67

			break;

    68

	return i;

    69

}

    70

    71

static inline bool RoadVehiclesAreBuilt(void)

    72

{

    73

	Vehicle *v;

    74

	FOR_ALL_VEHICLES(v) {

    75

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

    76

	}

    77

	return false;

    78

}

    79

    80

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

    81

{

    82

	switch (e->event) {

    83

	case WE_PAINT: {

    84

		int i;

    85

		StringID str = STR_02BE_DEFAULT;

    86

		w->disabled_state = (_vehicle_design_names & 1) ? (++str, 0) : (1 << 21);

    87

		SetDParam(0, str);

    88

		SetDParam(1, _currency_string_list[_opt_ptr->currency]);

    89

		SetDParam(2, _opt_ptr->kilometers + STR_0139_IMPERIAL_MILES);

    90

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

    91

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

    92

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

    93

		SetDParam(6, SPECSTR_LANGUAGE_START + _dynlang.curr);

    94

		i = GetCurRes();

    95

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

    96

		SetDParam(8, SPECSTR_SCREENSHOT_START + _cur_screenshot_format);

    97

		(_fullscreen) ? SETBIT(w->click_state, 28) : CLRBIT(w->click_state, 28); // fullscreen button

    98

    99

		DrawWindowWidgets(w);

   100

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

   101

	}	break;

   102

   103

	case WE_CLICK:

   104

		switch (e->click.widget) {

   105

		case 5: /* Setup currencies dropdown */

   106

			ShowDropDownMenu(w, _currency_string_list, _opt_ptr->currency, e->click.widget, _game_mode == GM_MENU ? 0 : ~GetMaskOfAllowedCurrencies(), 0);

   107

			return;

   108

		case 8: /* Setup distance unit dropdown */

   109

			ShowDropDownMenu(w, _distances_dropdown, _opt_ptr->kilometers, e->click.widget, 0, 0);

   110

			return;

   111

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

   112

			int i = 0;

   113

   114

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

   115

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

   116

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

   117

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

   118

   119

			ShowDropDownMenu(w, _driveside_dropdown, _opt_ptr->road_side, e->click.widget, i, 0);

   120

		} return;

   121

		case 14: { /* Setup townname dropdown */

   122

			int i = _opt_ptr->town_name;

   123

			ShowDropDownMenu(w, BuildDynamicDropdown(STR_TOWNNAME_ORIGINAL_ENGLISH, SPECSTR_TOWNNAME_LAST - SPECSTR_TOWNNAME_START + 1), i, e->click.widget, (_game_mode == GM_MENU) ? 0 : (-1) ^ (1 << i), 0);

   124

			return;

   125

		}

   126

		case 17: /* Setup autosave dropdown */

   127

			ShowDropDownMenu(w, _autosave_dropdown, _opt_ptr->autosave, e->click.widget, 0, 0);

   128

			return;

   129

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

   130

			ShowDropDownMenu(w, _designnames_dropdown, (_vehicle_design_names&1)?1:0, e->click.widget, (_vehicle_design_names&2)?0:2, 0);

   131

			return;

   132

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

   133

			return;

   134

		case 24: /* Setup interface language dropdown */

   135

			ShowDropDownMenu(w, _dynlang.dropdown, _dynlang.curr, e->click.widget, 0, 0);

   136

			return;

   137

		case 27: /* Setup resolution dropdown */

   138

			ShowDropDownMenu(w, BuildDynamicDropdown(SPECSTR_RESOLUTION_START, _num_resolutions), GetCurRes(), e->click.widget, 0, 0);

   139

			return;

   140

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

   141

			(_fullscreen) ? CLRBIT(w->click_state, 28) : SETBIT(w->click_state, 28);

   142

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

   143

			SetWindowDirty(w);

   144

			return;

   145

		case 31: /* Setup screenshot format dropdown */

   146

			ShowDropDownMenu(w, BuildDynamicDropdown(SPECSTR_SCREENSHOT_START, _num_screenshot_formats), _cur_screenshot_format, e->click.widget, 0, 0);

   147

			return;

   148

		}

   149

		break;

   150

   151

	case WE_DROPDOWN_SELECT:

   152

		switch (e->dropdown.button) {

   153

		case 20: /* Vehicle design names */

   154

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

   155

				DeleteCustomEngineNames();

   156

				MarkWholeScreenDirty();

   157

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

   158

				LoadCustomEngineNames();

   159

				MarkWholeScreenDirty();

   160

			}

   161

			break;

   162

		case 5: /* Currency */

   163

			if (e->dropdown.index == 23)

   164

				ShowCustCurrency();

   165

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

   166

			MarkWholeScreenDirty();

   167

			break;

   168

		case 8: /* Distance units */

   169

			_opt_ptr->kilometers = e->dropdown.index;

   170

			MarkWholeScreenDirty();

   171

			break;

   172

		case 11: /* Road side */

   173

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

   174

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

   175

				MarkWholeScreenDirty();

   176

			}

   177

			break;

   178

		case 14: /* Town names */

   179

			if (_game_mode == GM_MENU)

   180

				DoCommandP(0, e->dropdown.index, 0, NULL, CMD_SET_TOWN_NAME_TYPE | CMD_MSG(STR_EMPTY));

   181

			break;

   182

		case 17: /* Autosave options */

   183

			_opt_ptr->autosave = e->dropdown.index;

   184

			SetWindowDirty(w);

   185

			break;

   186

		case 24: /* Change interface language */

   187

			ReadLanguagePack(e->dropdown.index);

   188

			MarkWholeScreenDirty();

   189

			break;

   190

		case 27: /* Change resolution */

   191

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

   192

				SetWindowDirty(w);

   193

			break;

   194

		case 31: /* Change screenshot format */

   195

			SetScreenshotFormat(e->dropdown.index);

   196

			SetWindowDirty(w);

   197

			break;

   198

		}

   199

		break;

   200

   201

	case WE_DESTROY:

   202

		DeleteWindowById(WC_CUSTOM_CURRENCY, 0);

   203

		break;

   204

	}

   205

   206

}

   207

   208

int32 CmdSetRoadDriveSide(int x, int y, uint32 flags, uint32 p1, uint32 p2)

   209

{

   210

	if (flags & DC_EXEC) {

   211

		_opt_ptr->road_side = p1;

   212

		InvalidateWindow(WC_GAME_OPTIONS,0);

   213

	}

   214

	return 0;

   215

}

   216

   217

int32 CmdSetTownNameType(int x, int y, uint32 flags, uint32 p1, uint32 p2)

   218

{

   219

	if (flags & DC_EXEC) {

   220

		_opt_ptr->town_name = p1;

   221

		InvalidateWindow(WC_GAME_OPTIONS,0);

   222

	}

   223

	return 0;

   224

}

   225

   226

   227

static const Widget _game_options_widgets[] = {

   228

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

   229

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

   230

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

   231

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

   232

{          WWT_6,   RESIZE_NONE,    14,    20,   169,    34,    45, STR_02E1,								STR_02E2_CURRENCY_UNITS_SELECTION},

   233

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

   234

{      WWT_FRAME,   RESIZE_NONE,    14,   190,   359,    20,    55, STR_02E3_DISTANCE_UNITS,	STR_NULL},

   235

{          WWT_6,   RESIZE_NONE,    14,   200,   349,    34,    45, STR_02E4,								STR_02E5_DISTANCE_UNITS_SELECTION},

   236

{   WWT_CLOSEBOX,   RESIZE_NONE,    14,   338,   348,    35,    44, STR_0225,								STR_02E5_DISTANCE_UNITS_SELECTION},

   237

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

   238

{          WWT_6,   RESIZE_NONE,    14,    20,   169,    76,    87, STR_02E7,								STR_02E8_SELECT_SIDE_OF_ROAD_FOR},

   239

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

   240

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

   241

{          WWT_6,   RESIZE_NONE,    14,   200,   349,    76,    87, STR_02EC,								STR_02ED_SELECT_STYLE_OF_TOWN_NAMES},

   242

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

   243

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

   244

{          WWT_6,   RESIZE_NONE,    14,    20,   169,   118,   129, STR_02F5,								STR_02F6_SELECT_INTERVAL_BETWEEN},

   245

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

   246

   247

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

   248

{          WWT_6,   RESIZE_NONE,    14,    20,   119,   207,   218, STR_02BD,								STR_02C1_VEHICLE_DESIGN_NAMES_SELECTION},

   249

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

   250

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

   251

   252

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

   253

{          WWT_6,   RESIZE_NONE,    14,   200,   349,   118,   129, STR_OPTIONS_LANG_CBO,		STR_OPTIONS_LANG_TIP},

   254

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

   255

   256

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

   257

{          WWT_6,   RESIZE_NONE,    14,    20,   169,   160,   171, STR_OPTIONS_RES_CBO,			STR_OPTIONS_RES_TIP},

   258

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

   259

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

   260

   261

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

   262

{          WWT_6,   RESIZE_NONE,    14,   200,   349,   160,   171, STR_OPTIONS_SCREENSHOT_FORMAT_CBO,		STR_OPTIONS_SCREENSHOT_FORMAT_TIP},

   263

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

   264

   265

{   WIDGETS_END},

   266

};

   267

   268

static const WindowDesc _game_options_desc = {

   269

	WDP_CENTER, WDP_CENTER, 370, 239,

   270

	WC_GAME_OPTIONS,0,

   271

	WDF_STD_TOOLTIPS | WDF_STD_BTN | WDF_DEF_WIDGET | WDF_RESTORE_DPARAM | WDF_UNCLICK_BUTTONS,

   272

	_game_options_widgets,

   273

	GameOptionsWndProc

   274

};

   275

   276

   277

void ShowGameOptions(void)

   278

{

   279

	DeleteWindowById(WC_GAME_OPTIONS, 0);

   280

	AllocateWindowDesc(&_game_options_desc);

   281

}

   282

   283

typedef struct {

   284

	int16 min;

   285

	int16 max;

   286

	int16 step;

   287

	StringID str;

   288

} GameSettingData;

   289

   290

static const GameSettingData _game_setting_info[] = {

   291

	{  0,   7,  1, STR_NULL},

   292

	{  0,   3,  1, STR_6830_IMMEDIATE},

   293

	{  0,   2,  1, STR_6816_LOW},

   294

	{  0,   3,  1, STR_26816_NONE},

   295

	{100, 500, 50, STR_NULL},

   296

	{  2,   4,  1, STR_NULL},

   297

	{  0,   2,  1, STR_6820_LOW},

   298

	{  0,   4,  1, STR_681B_VERY_SLOW},

   299

	{  0,   2,  1, STR_6820_LOW},

   300

	{  0,   2,  1, STR_6823_NONE},

   301

	{  0,   3,  1, STR_6826_X1_5},

   302

	{  0,   2,  1, STR_6820_LOW},

   303

	{  0,   3,  1, STR_682A_VERY_FLAT},

   304

	{  0,   3,  1, STR_VERY_LOW},

   305

	{  0,   1,  1, STR_682E_STEADY},

   306

	{  0,   1,  1, STR_6834_AT_END_OF_LINE_AND_AT_STATIONS},

   307

	{  0,   1,  1, STR_6836_OFF},

   308

	{  0,   2,  1, STR_6839_PERMISSIVE},

   309

};

   310

   311

static inline bool GetBitAndShift(uint32 *b)

   312

{

   313

	uint32 x = *b;

   314

	*b >>= 1;

   315

	return HASBIT(x, 0);

   316

}

   317

   318

/*

   319

	A: competitors

   320

	B: start time in months / 3

   321

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

   322

	D: industry count (3 = high, 0 = none)

   323

	E: inital loan / 1000 (in GBP)

   324

	F: interest rate

   325

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

   326

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

   327

	I: intelligence (0-2)

   328

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

   329

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

   330

	L: construction cost (0-2)

   331

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

   332

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

   333

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

   334

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

   335

	Q: disasters

   336

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

   337

*/

   338

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

   339

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

   340

	{2, 2, 1, 3, 300, 2, 0, 2, 0, 1, 2, 0, 1, 0, 0, 0, 0, 0},	//easy

   341

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

   342

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

   343

};

   344

   345

void SetDifficultyLevel(int mode, GameOptions *gm_opt)

   346

{

   347

	int i;

   348

	assert(mode <= 3);

   349

   350

	gm_opt->diff_level = mode;

   351

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

   352

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

   353

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

   354

	}

   355

}

   356

   357

extern void StartupEconomy(void);

   358

   359

enum {

   360

	GAMEDIFF_WND_TOP_OFFSET = 45,

   361

	GAMEDIFF_WND_ROWSIZE    = 9

   362

};

   363

   364

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

   365

static GameOptions _opt_mod_temp;

   366

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

   367

#define DIFF_INGAME_DISABLED_BUTTONS 0x383E

   368

   369

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

   370

{

   371

	switch (e->event) {

   372

	case WE_PAINT: {

   373

		uint32 click_a, click_b, disabled;

   374

		int i;

   375

		int y, value;

   376

   377

		w->click_state = (1 << 3) << _opt_mod_temp.diff_level; // have current difficulty button clicked

   378

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

   379

		w->disabled_state = (_game_mode != GM_NORMAL) ? 0 : (1 << 3) | (1 << 4) | (1 << 5) | (1 << 6);

   380

   381

		if (_game_mode == GM_EDITOR)

   382

			SETBIT(w->disabled_state, 7);

   383

   384

		if (_networking) {

   385

			SETBIT(w->disabled_state, 7); // disable highscore chart in multiplayer

   386

			if (!_network_server)

   387

				SETBIT(w->disabled_state, 10); // Disable save-button in multiplayer (and if client)

   388

		}

   389

   390

		DrawWindowWidgets(w);

   391

   392

		click_a = _difficulty_click_a;

   393

		click_b = _difficulty_click_b;

   394

   395

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

   396

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

   397

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

   398

   399

		y = GAMEDIFF_WND_TOP_OFFSET;

   400

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

   401

			DrawFrameRect( 5, y,  5 + 8, y + 8, 3, GetBitAndShift(&click_a) ? (1 << 5) : 0);

   402

			DrawFrameRect(15, y, 15 + 8, y + 8, 3, GetBitAndShift(&click_b) ? (1 << 5) : 0);

   403

			if (GetBitAndShift(&disabled) || (_networking && !_network_server)) {

   404

				int color = PALETTE_MODIFIER_COLOR | _color_list[3].unk2;

   405

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

   406

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

   407

			}

   408

   409

			DrawStringCentered(10, y, STR_6819, 0);

   410

			DrawStringCentered(20, y, STR_681A, 0);

   411

   412

   413

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

   414

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

   415

			SetDParam(0, value);

   416

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

   417

   418

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

   419

		}

   420

	} break;

   421

   422

	case WE_CLICK:

   423

		switch (e->click.widget) {

   424

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

   425

			const GameSettingData *info;

   426

			int x, y;

   427

			uint btn, dis;

   428

			int val;

   429

   430

			// Don't allow clients to make any changes

   431

			if  (_networking && !_network_server)

   432

				return;

   433

   434

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

   435

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

   436

				return;

   437

   438

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

   439

			if (y < 0)

   440

				return;

   441

   442

			// Get button from Y coord.

   443

			btn = y / (GAMEDIFF_WND_ROWSIZE + 2);

   444

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

   445

				return;

   446

   447

			// Clicked disabled button?

   448

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

   449

   450

			if (HASBIT(dis, btn))

   451

				return;

   452

   453

			_difficulty_timeout = 5;

   454

   455

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

   456

   457

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

   458

			if (x >= 10) {

   459

				// Increase button clicked

   460

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

   461

				SETBIT(_difficulty_click_b, btn);

   462

			} else {

   463

				// Decrease button clicked

   464

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

   465

				SETBIT(_difficulty_click_a, btn);

   466

			}

   467

   468

			// save value in temporary variable

   469

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

   470

			SetDifficultyLevel(3, &_opt_mod_temp); // set difficulty level to custom

   471

			SetWindowDirty(w);

   472

		}	break;

   473

		case 3: case 4: case 5: case 6: /* Easy / Medium / Hard / Custom */

   474

			// temporarily change difficulty level

   475

			SetDifficultyLevel(e->click.widget - 3, &_opt_mod_temp);

   476

			SetWindowDirty(w);

   477

			break;

   478

		case 7: /* Highscore Table */

   479

			ShowHighscoreTable(_opt_mod_temp.diff_level, -1);

   480

			break;

   481

		case 10: { /* Save button - save changes */

   482

			int btn, val;

   483

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

   484

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

   485

				// if setting has changed, change it

   486

				if (val != ((int*)&_opt_ptr->diff)[btn])

   487

					DoCommandP(0, btn, val, NULL, CMD_CHANGE_DIFFICULTY_LEVEL);

   488

			}

   489

			DoCommandP(0, -1, _opt_mod_temp.diff_level, NULL, CMD_CHANGE_DIFFICULTY_LEVEL);

   490

			DeleteWindow(w);

   491

			// If we are in the editor, we should reload the economy.

   492

			//  This way when you load a game, the max loan and interest rate

   493

			//  are loaded correctly.

   494

			if (_game_mode == GM_EDITOR)

   495

				StartupEconomy();

   496

			break;

   497

		}

   498

		case 11: /* Cancel button - close window, abandon changes */

   499

			DeleteWindow(w);

   500

			break;