1

/* $Id$ */

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     3

#include "stdafx.h"

     4

#include "openttd.h"

     5

#include "currency.h"

     6

#include "functions.h"

     7

#include "string.h"

     8

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

     9

#include "table/sprites.h"

    10

#include "table/strings.h"

    11

#include "window.h"

    12

#include "gui.h"

    13

#include "gfx.h"

    14

#include "command.h"

    15

#include "engine.h"

    16

#include "screenshot.h"

    17

#include "newgrf.h"

    18

#include "network.h"

    19

#include "console.h"

    20

#include "town.h"

    21

#include "variables.h"

    22

    23

static uint32 _difficulty_click_a;

    24

static uint32 _difficulty_click_b;

    25

static byte _difficulty_timeout;

    26

    27

static const StringID _distances_dropdown[] = {

    28

	STR_0139_IMPERIAL_MILES,

    29

	STR_013A_METRIC_KILOMETERS,

    30

	INVALID_STRING_ID

    31

};

    32

    33

static const StringID _driveside_dropdown[] = {

    34

	STR_02E9_DRIVE_ON_LEFT,

    35

	STR_02EA_DRIVE_ON_RIGHT,

    36

	INVALID_STRING_ID

    37

};

    38

    39

static const StringID _autosave_dropdown[] = {

    40

	STR_02F7_OFF,

    41

	STR_AUTOSAVE_1_MONTH,

    42

	STR_02F8_EVERY_3_MONTHS,

    43

	STR_02F9_EVERY_6_MONTHS,

    44

	STR_02FA_EVERY_12_MONTHS,

    45

	INVALID_STRING_ID,

    46

};

    47

    48

static const StringID _designnames_dropdown[] = {

    49

	STR_02BE_DEFAULT,

    50

	STR_02BF_CUSTOM,

    51

	INVALID_STRING_ID

    52

};

    53

    54

static StringID *BuildDynamicDropdown(StringID base, int num)

    55

{

    56

	static StringID buf[32 + 1];

    57

	StringID *p = buf;

    58

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

    59

	*p = INVALID_STRING_ID;

    60

	return buf;

    61

}

    62

    63

static int GetCurRes(void)

    64

{

    65

	int i;

    66

    67

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

    68

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

    69

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

    70

			break;

    71

		}

    72

	}

    73

	return i;

    74

}

    75

    76

static inline bool RoadVehiclesAreBuilt(void)

    77

{

    78

	const Vehicle* v;

    79

    80

	FOR_ALL_VEHICLES(v) {

    81

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

    82

	}

    83

	return false;

    84

}

    85

    86

    87

static void ShowCustCurrency(void);

    88

    89

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

    90

{

    91

	switch (e->event) {

    92

	case WE_PAINT: {

    93

		int i;

    94

		StringID str = STR_02BE_DEFAULT;

    95

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

    96

		SetDParam(0, str);

    97

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

    98

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

    99

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

   100

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

   101

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

   102

		SetDParam(6, SPECSTR_LANGUAGE_START + _dynlang.curr);

   103

		i = GetCurRes();

   104

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

   105

		SetDParam(8, SPECSTR_SCREENSHOT_START + _cur_screenshot_format);

   106

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

   107

   108

		DrawWindowWidgets(w);

   109

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

   110

	}	break;

   111

   112

	case WE_CLICK:

   113

		switch (e->click.widget) {

   114

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

   115

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

   116

			return;

   117

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

   118

			ShowDropDownMenu(w, _distances_dropdown, _opt_ptr->kilometers, 8, 0, 0);

   119

			return;

   120

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

   121

			int i = 0;

   122

   123

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

   124

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

   125

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

   126

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

   127

   128

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

   129

		} return;

   130

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

   131

			int i = _opt_ptr->town_name;

   132

			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);

   133

			return;

   134

		}

   135

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

   136

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

   137

			return;

   138

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

   139

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

   140

			return;

   141

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

   142

			return;

   143

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

   144

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

   145

			return;

   146

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

   147

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

   148

			return;

   149

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

   150

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

   151

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

   152

			SetWindowDirty(w);

   153

			return;

   154

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

   155

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

   156

			return;

   157

		}

   158

		break;

   159

   160

	case WE_DROPDOWN_SELECT:

   161

		switch (e->dropdown.button) {

   162

		case 20: /* Vehicle design names */

   163

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

   164

				DeleteCustomEngineNames();

   165

				MarkWholeScreenDirty();

   166

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

   167

				LoadCustomEngineNames();

   168

				MarkWholeScreenDirty();

   169

			}

   170

			break;

   171

		case 5: /* Currency */

   172

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

   173

				ShowCustCurrency();

   174

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

   175

			MarkWholeScreenDirty();

   176

			break;

   177

		case 8: /* Distance units */

   178

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

   179

			MarkWholeScreenDirty();

   180

			break;

   181

		case 11: /* Road side */

   182

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

   183

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

   184

				MarkWholeScreenDirty();

   185

			}

   186

			break;

   187

		case 14: /* Town names */

   188

			if (_game_mode == GM_MENU) {

   189

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

   190

				InvalidateWindow(WC_GAME_OPTIONS, 0);

   191

			}

   192

			break;

   193

		case 17: /* Autosave options */

   194

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

   195

			SetWindowDirty(w);

   196

			break;

   197

		case 24: /* Change interface language */

   198

			ReadLanguagePack(e->dropdown.index);

   199

			MarkWholeScreenDirty();

   200

			break;

   201

		case 27: /* Change resolution */

   202

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

   203

				SetWindowDirty(w);

   204

			break;

   205

		case 31: /* Change screenshot format */

   206

			SetScreenshotFormat(e->dropdown.index);

   207

			SetWindowDirty(w);

   208

			break;

   209

		}

   210

		break;

   211

   212

	case WE_DESTROY:

   213

		DeleteWindowById(WC_CUSTOM_CURRENCY, 0);

   214

		break;

   215

	}

   216

   217

}

   218

   219

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

   220

 * @param x,y unused

   221

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

   222

 * @param p2 unused

   223

 */

   224

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

   225

{

   226

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

   227

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

   228

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

   229

   230

	if (flags & DC_EXEC) {

   231

		_opt_ptr->road_side = p1;

   232

		InvalidateWindow(WC_GAME_OPTIONS,0);

   233

	}

   234

	return 0;

   235

}

   236

   237

static const Widget _game_options_widgets[] = {

   238

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

   239

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

   240

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

   241

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

   242

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

   243

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

   244

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

   245

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

   246

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

   247

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

   248

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

   249

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

   250

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

   251

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

   252

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

   253

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

   254

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

   255

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

   256

   257

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

   258

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

   259

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

   260

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

   261

   262

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

   263

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

   264

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

   265

   266

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

   267

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

   268

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

   269

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

   270

   271

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

   272

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

   273

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

   274

   275

{   WIDGETS_END},

   276

};

   277

   278

static const WindowDesc _game_options_desc = {

   279

	WDP_CENTER, WDP_CENTER, 370, 239,

   280

	WC_GAME_OPTIONS,0,

   281

	WDF_STD_TOOLTIPS | WDF_STD_BTN | WDF_DEF_WIDGET | WDF_UNCLICK_BUTTONS,

   282

	_game_options_widgets,

   283

	GameOptionsWndProc

   284

};

   285

   286

   287

void ShowGameOptions(void)

   288

{

   289

	DeleteWindowById(WC_GAME_OPTIONS, 0);

   290

	AllocateWindowDesc(&_game_options_desc);

   291

}

   292

   293

typedef struct {

   294

	int16 min;

   295

	int16 max;

   296

	int16 step;

   297

	StringID str;

   298

} GameSettingData;

   299

   300

static const GameSettingData _game_setting_info[] = {

   301

	{  0,   7,  1, STR_NULL},

   302

	{  0,   3,  1, STR_6830_IMMEDIATE},

   303

	{  0,   2,  1, STR_6816_LOW},

   304

	{  0,   3,  1, STR_26816_NONE},

   305

	{100, 500, 50, STR_NULL},

   306

	{  2,   4,  1, STR_NULL},

   307

	{  0,   2,  1, STR_6820_LOW},

   308

	{  0,   4,  1, STR_681B_VERY_SLOW},

   309

	{  0,   2,  1, STR_6820_LOW},

   310

	{  0,   2,  1, STR_6823_NONE},

   311

	{  0,   3,  1, STR_6826_X1_5},

   312

	{  0,   2,  1, STR_6820_LOW},

   313

	{  0,   3,  1, STR_682A_VERY_FLAT},

   314

	{  0,   3,  1, STR_VERY_LOW},

   315

	{  0,   1,  1, STR_682E_STEADY},

   316

	{  0,   1,  1, STR_6834_AT_END_OF_LINE_AND_AT_STATIONS},

   317

	{  0,   1,  1, STR_6836_OFF},

   318

	{  0,   2,  1, STR_6839_PERMISSIVE},

   319

};

   320

   321

static inline bool GetBitAndShift(uint32 *b)

   322

{

   323

	uint32 x = *b;

   324

	*b >>= 1;

   325

	return HASBIT(x, 0);

   326

}

   327

   328

/*

   329

	A: competitors

   330

	B: start time in months / 3

   331

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

   332

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

   333

	E: inital loan / 1000 (in GBP)

   334

	F: interest rate

   335

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

   336

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

   337

	I: intelligence (0-2)

   338

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

   339

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

   340

	L: construction cost (0-2)

   341

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

   342

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

   343

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

   344

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

   345

	Q: disasters

   346

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

   347

*/

   348

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

   349

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

   350

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

   351

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

   352

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

   353

};

   354

   355

void SetDifficultyLevel(int mode, GameOptions *gm_opt)

   356

{

   357

	int i;

   358

	assert(mode <= 3);

   359

   360

	gm_opt->diff_level = mode;

   361

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

   362

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

   363

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

   364

	}

   365

}

   366

   367

extern void StartupEconomy(void);

   368

   369

enum {

   370

	GAMEDIFF_WND_TOP_OFFSET = 45,

   371

	GAMEDIFF_WND_ROWSIZE    = 9

   372

};

   373

   374

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

   375

static GameOptions _opt_mod_temp;

   376

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

   377

#define DIFF_INGAME_DISABLED_BUTTONS 0x383E

   378

   379

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

   380

{

   381

	switch (e->event) {

   382

		case WE_CREATE: /* Setup disabled buttons when creating window */

   383

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

   384

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

   385

   386

		if (_game_mode == GM_EDITOR) SETBIT(w->disabled_state, 7);

   387

   388

		if (_networking) {

   389

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

   390

			if (!_network_server)

   391

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

   392

		}

   393

		break;

   394

	case WE_PAINT: {

   395

		uint32 click_a, click_b, disabled;

   396

		int i;

   397

		int y, value;

   398

   399

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

   400

		DrawWindowWidgets(w);

   401

   402

		click_a = _difficulty_click_a;

   403

		click_b = _difficulty_click_b;

   404

   405

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

   406

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

   407

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

   408

   409

		y = GAMEDIFF_WND_TOP_OFFSET;

   410

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

   411

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

   412

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

   413

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

   414

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

   415

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

   416

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

   417

			}

   418

   419

			DrawStringCentered(10, y, STR_6819, 0);

   420

			DrawStringCentered(20, y, STR_681A, 0);

   421

   422

   423

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

   424

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

   425

			SetDParam(0, value);

   426

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

   427

   428

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

   429

		}

   430

	} break;

   431

   432

	case WE_CLICK:

   433

		switch (e->click.widget) {

   434

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

   435

			const GameSettingData *info;

   436

			int x, y;

   437

			uint btn, dis;

   438

			int val;

   439

   440

			// Don't allow clients to make any changes

   441

			if  (_networking && !_network_server)

   442

				return;

   443

   444

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

   445

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

   446

				return;

   447

   448

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

   449

			if (y < 0)

   450

				return;

   451

   452

			// Get button from Y coord.

   453

			btn = y / (GAMEDIFF_WND_ROWSIZE + 2);

   454

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

   455

				return;

   456

   457

			// Clicked disabled button?

   458

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

   459

   460

			if (HASBIT(dis, btn))

   461

				return;

   462

   463

			_difficulty_timeout = 5;

   464

   465

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

   466

   467

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

   468

			if (x >= 10) {

   469

				// Increase button clicked

   470

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

   471

				SETBIT(_difficulty_click_b, btn);

   472

			} else {

   473

				// Decrease button clicked

   474

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

   475

				SETBIT(_difficulty_click_a, btn);

   476

			}

   477

   478

			// save value in temporary variable

   479

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

   480

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

   481

			SetWindowDirty(w);

   482

		}	break;

   483

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

   484

			// temporarily change difficulty level

   485

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

   486

			SetWindowDirty(w);

   487

			break;

   488

		case 7: /* Highscore Table */

   489

			ShowHighscoreTable(_opt_mod_temp.diff_level, -1);

   490

			break;

   491

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

   492

			int btn, val;

   493

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

   494

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

   495

				// if setting has changed, change it

   496

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

   497

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