1

/* $Id$ */

     2

     3

#include "stdafx.h"

     4

#include "openttd.h"

     5

#include "debug.h"

     6

#include "functions.h"

     7

#include "roadveh.h"

     8

#include "table/sprites.h"

     9

#include "table/strings.h"

    10

#include "map.h"

    11

#include "window.h"

    12

#include "gui.h"

    13

#include "gfx.h"

    14

#include "vehicle.h"

    15

#include "viewport.h"

    16

#include "station.h"

    17

#include "command.h"

    18

#include "player.h"

    19

#include "engine.h"

    20

#include "depot.h"

    21

#include "vehicle_gui.h"

    22

#include "newgrf_engine.h"

    23

#include "date.h"

    24

    25

/**

    26

 * Draw the purchase info details of road vehicle at a given location.

    27

 * @param x,y location where to draw the info

    28

 * @param engine_number the engine of which to draw the info of

    29

 */

    30

void DrawRoadVehPurchaseInfo(int x, int y, EngineID engine_number)

    31

{

    32

	const RoadVehicleInfo *rvi = RoadVehInfo(engine_number);

    33

	const Engine *e = GetEngine(engine_number);

    34

	bool refittable = (_engine_info[engine_number].refit_mask != 0);

    35

	YearMonthDay ymd;

    36

	ConvertDateToYMD(e->intro_date, &ymd);

    37

    38

	/* Purchase cost - Max speed */

    39

	SetDParam(0, rvi->base_cost * (_price.roadveh_base>>3)>>5);

    40

	SetDParam(1, rvi->max_speed / 2);

    41

	DrawString(x, y, STR_PURCHASE_INFO_COST_SPEED, 0);

    42

	y += 10;

    43

    44

	/* Running cost */

    45

	SetDParam(0, rvi->running_cost * _price.roadveh_running >> 8);

    46

	DrawString(x, y, STR_PURCHASE_INFO_RUNNINGCOST, 0);

    47

	y += 10;

    48

    49

	/* Cargo type + capacity */

    50

	SetDParam(0, _cargoc.names_long[rvi->cargo_type]);

    51

	SetDParam(1, rvi->capacity);

    52

	SetDParam(2, refittable ? STR_9842_REFITTABLE : STR_EMPTY);

    53

	DrawString(x, y, STR_PURCHASE_INFO_CAPACITY, 0);

    54

	y += 10;

    55

    56

	/* Design date - Life length */

    57

	SetDParam(0, ymd.year);

    58

	SetDParam(1, e->lifelength);

    59

	DrawString(x, y, STR_PURCHASE_INFO_DESIGNED_LIFE, 0);

    60

	y += 10;

    61

    62

	/* Reliability */

    63

	SetDParam(0, e->reliability * 100 >> 16);

    64

	DrawString(x, y, STR_PURCHASE_INFO_RELIABILITY, 0);

    65

	y += 10;

    66

    67

	/* Additional text from NewGRF */

    68

	// XXX 227 will become a calculated width...

    69

	y += ShowAdditionalText(x, y, 227, engine_number);

    70

}

    71

    72

void DrawRoadVehImage(const Vehicle *v, int x, int y, VehicleID selection)

    73

{

    74

	PalSpriteID pal = (v->vehstatus & VS_CRASHED) ? PALETTE_CRASH : GetVehiclePalette(v);

    75

	DrawSprite(GetRoadVehImage(v, DIR_W) | pal, x + 14, y + 6);

    76

    77

	if (v->index == selection) {

    78

		DrawFrameRect(x - 1, y - 1, x + 28, y + 12, 15, FR_BORDERONLY);

    79

	}

    80

}

    81

    82

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

    83

{

    84

	switch (e->event) {

    85

		case WE_PAINT: {

    86

			const Vehicle *v = GetVehicle(w->window_number);

    87

    88

			SetDParam(0, v->string_id);

    89

			SetDParam(1, v->unitnumber);

    90

			DrawWindowWidgets(w);

    91

    92

			WP(w,refit_d).cargo = DrawVehicleRefitWindow(v, WP(w,refit_d).sel);

    93

    94

			if (WP(w,refit_d).cargo != CT_INVALID) {

    95

				int32 cost = DoCommand(v->tile, v->index, WP(w,refit_d).cargo, DC_QUERY_COST, CMD_REFIT_ROAD_VEH);

    96

				if (!CmdFailed(cost)) {

    97

					SetDParam(0, _cargoc.names_long[WP(w,refit_d).cargo]);

    98

					SetDParam(1, _returned_refit_capacity);

    99

					SetDParam(2, cost);

   100

					DrawString(1, 137, STR_9840_NEW_CAPACITY_COST_OF_REFIT, 0);

   101

				}

   102

			}

   103

   104

			break;

   105

		}

   106

   107

		case WE_CLICK:

   108

			switch (e->click.widget) {

   109

				case 2: { /* List box */

   110

					int y = e->click.pt.y - 25;

   111

					if (y >= 0) {

   112

						WP(w,refit_d).sel = y / 10;

   113

						SetWindowDirty(w);

   114

					}

   115

					break;

   116

				}

   117

   118

				case 4: /* Refit button */

   119

					if (WP(w,refit_d).cargo != CT_INVALID) {

   120

						const Vehicle *v = GetVehicle(w->window_number);

   121

						if (DoCommandP(v->tile, v->index, WP(w,refit_d).cargo, NULL, CMD_REFIT_ROAD_VEH | CMD_MSG(STR_REFIT_ROAD_VEHICLE_CAN_T)))

   122

							DeleteWindow(w);

   123

					}

   124

					break;

   125

			}

   126

			break;

   127

	}

   128

}

   129

   130

static const Widget _road_veh_refit_widgets[] = {

   131

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

   132

{    WWT_CAPTION, RESIZE_NONE, 14, 11, 239,   0,  13, STR_983B_REFIT,                      STR_018C_WINDOW_TITLE_DRAG_THIS },

   133

{     WWT_IMGBTN, RESIZE_NONE, 14,  0, 239,  14, 135, 0x0,                                 STR_983D_SELECT_TYPE_OF_CARGO_FOR },

   134

{     WWT_IMGBTN, RESIZE_NONE, 14,  0, 239, 136, 157, 0x0,                                 STR_NULL },

   135

{ WWT_PUSHTXTBTN, RESIZE_NONE, 14,  0, 239, 158, 169, STR_REFIT_ROAD_VEHICLE,              STR_REFIT_ROAD_VEHICLE_TO_CARRY_HIGHLIGHTED },

   136

{      WWT_LABEL, RESIZE_NONE,  0,  0, 239,  13,  26, STR_983F_SELECT_CARGO_TYPE_TO_CARRY, STR_NULL},

   137

{    WIDGETS_END },

   138

};

   139

   140

static const WindowDesc _road_veh_refit_desc = {

   141

	-1, -1, 240, 170,

   142

	WC_VEHICLE_REFIT, WC_VEHICLE_VIEW,

   143

	WDF_STD_TOOLTIPS | WDF_STD_BTN | WDF_DEF_WIDGET | WDF_UNCLICK_BUTTONS,

   144

	_road_veh_refit_widgets,

   145

	RoadVehRefitWndProc,

   146

};

   147

   148

static void ShowRoadVehRefitWindow(const Vehicle *v)

   149

{

   150

	Window *w;

   151

   152

	DeleteWindowById(WC_VEHICLE_REFIT, v->index);

   153

   154

	_alloc_wnd_parent_num = v->index;

   155

	w = AllocateWindowDesc(&_road_veh_refit_desc);

   156

	w->window_number = v->index;

   157

	w->caption_color = v->owner;

   158

	WP(w,refit_d).sel = -1;

   159

}

   160

   161

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

   162

{

   163

	switch (e->event) {

   164

	case WE_PAINT: {

   165

		const Vehicle *v = GetVehicle(w->window_number);

   166

		StringID str;

   167

   168

		w->disabled_state = v->owner == _local_player ? 0 : (1 << 2);

   169

		// disable service-scroller when interval is set to disabled

   170

		if (!_patches.servint_roadveh) w->disabled_state |= (1 << 5) | (1 << 6);

   171

   172

		SetDParam(0, v->string_id);

   173

		SetDParam(1, v->unitnumber);

   174

		DrawWindowWidgets(w);

   175

   176

		/* Draw running cost */

   177

		{

   178

			int year = v->age / 366;

   179

   180

			SetDParam(1, year);

   181

   182

			SetDParam(0, (v->age + 365 < v->max_age) ? STR_AGE : STR_AGE_RED);

   183

			SetDParam(2, v->max_age / 366);

   184

			SetDParam(3, RoadVehInfo(v->engine_type)->running_cost * _price.roadveh_running >> 8);

   185

			DrawString(2, 15, STR_900D_AGE_RUNNING_COST_YR, 0);

   186

		}

   187

   188

		/* Draw max speed */

   189

		{

   190

			SetDParam(0, v->max_speed / 2);

   191

			DrawString(2, 25, STR_900E_MAX_SPEED, 0);

   192

		}

   193

   194

		/* Draw profit */

   195

		{

   196

			SetDParam(0, v->profit_this_year);

   197

			SetDParam(1, v->profit_last_year);

   198

			DrawString(2, 35, STR_900F_PROFIT_THIS_YEAR_LAST_YEAR, 0);

   199

		}

   200

   201

		/* Draw breakdown & reliability */

   202

		{

   203

			SetDParam(0, v->reliability * 100 >> 16);

   204

			SetDParam(1, v->breakdowns_since_last_service);

   205

			DrawString(2, 45, STR_9010_RELIABILITY_BREAKDOWNS, 0);

   206

		}

   207

   208

		/* Draw service interval text */

   209

		{

   210

			SetDParam(0, v->service_interval);

   211

			SetDParam(1, v->date_of_last_service);

   212

			DrawString(13, 90, _patches.servint_ispercent?STR_SERVICING_INTERVAL_PERCENT:STR_883C_SERVICING_INTERVAL_DAYS, 0);

   213

		}

   214

   215

		DrawRoadVehImage(v, 3, 57, INVALID_VEHICLE);

   216

   217

		SetDParam(0, GetCustomEngineName(v->engine_type));

   218

		SetDParam(1, v->build_year);

   219

		SetDParam(2, v->value);

   220

		DrawString(34, 57, STR_9011_BUILT_VALUE, 0);

   221

   222

		SetDParam(0, _cargoc.names_long[v->cargo_type]);

   223

		SetDParam(1, v->cargo_cap);

   224

		DrawString(34, 67, STR_9012_CAPACITY, 0);

   225

   226

		str = STR_8812_EMPTY;

   227

		if (v->cargo_count != 0) {

   228

			SetDParam(0, v->cargo_type);

   229

			SetDParam(1, v->cargo_count);

   230

			SetDParam(2, v->cargo_source);

   231

			str = STR_8813_FROM;

   232

		}

   233

		DrawString(34, 78, str, 0);

   234

	} break;

   235

   236

	case WE_CLICK: {

   237

		int mod;

   238

		const Vehicle *v;

   239

		switch (e->click.widget) {

   240

		case 2: /* rename */

   241

			v = GetVehicle(w->window_number);

   242

			SetDParam(0, v->unitnumber);

   243

			ShowQueryString(v->string_id, STR_902C_NAME_ROAD_VEHICLE, 31, 150, w->window_class, w->window_number, CS_ALPHANUMERAL);

   244

			break;

   245

   246

		case 5: /* increase int */

   247

			mod = _ctrl_pressed? 5 : 10;

   248

			goto do_change_service_int;

   249

		case 6: /* decrease int */

   250

			mod = _ctrl_pressed? -5 : -10;

   251

do_change_service_int:

   252

			v = GetVehicle(w->window_number);

   253

   254

			mod = GetServiceIntervalClamped(mod + v->service_interval);

   255

			if (mod == v->service_interval) return;

   256

   257

			DoCommandP(v->tile, v->index, mod, NULL, CMD_CHANGE_SERVICE_INT | CMD_MSG(STR_018A_CAN_T_CHANGE_SERVICING));

   258

			break;

   259

		}

   260

	} break;

   261

   262

	case WE_ON_EDIT_TEXT: {

   263

		if (e->edittext.str[0] != '\0') {

   264

			_cmd_text = e->edittext.str;

   265

			DoCommandP(0, w->window_number, 0, NULL,

   266

				CMD_NAME_VEHICLE | CMD_MSG(STR_902D_CAN_T_NAME_ROAD_VEHICLE));

   267

		}

   268

	} break;

   269

   270

	}

   271

}

   272

   273

static const Widget _roadveh_details_widgets[] = {

   274

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

   275

{    WWT_CAPTION,   RESIZE_NONE,    14,    11,   339,     0,    13, STR_900C_DETAILS, STR_018C_WINDOW_TITLE_DRAG_THIS},

   276

{ WWT_PUSHTXTBTN,   RESIZE_NONE,    14,   340,   379,     0,    13, STR_01AA_NAME,    STR_902E_NAME_ROAD_VEHICLE},

   277

{     WWT_IMGBTN,   RESIZE_NONE,    14,     0,   379,    14,    55, 0x0,              STR_NULL},

   278

{     WWT_IMGBTN,   RESIZE_NONE,    14,     0,   379,    56,    88, 0x0,              STR_NULL},

   279

{ WWT_PUSHTXTBTN,   RESIZE_NONE,    14,     0,    10,    89,    94, STR_0188,         STR_884D_INCREASE_SERVICING_INTERVAL},

   280

{ WWT_PUSHTXTBTN,   RESIZE_NONE,    14,     0,    10,    95,   100, STR_0189,         STR_884E_DECREASE_SERVICING_INTERVAL},

   281

{     WWT_IMGBTN,   RESIZE_NONE,    14,    11,   379,    89,   100, 0x0,              STR_NULL},

   282

{   WIDGETS_END},

   283

};

   284

   285

static const WindowDesc _roadveh_details_desc = {

   286

	-1,-1, 380, 101,

   287

	WC_VEHICLE_DETAILS,WC_VEHICLE_VIEW,

   288

	WDF_STD_TOOLTIPS | WDF_STD_BTN | WDF_DEF_WIDGET | WDF_UNCLICK_BUTTONS,

   289

	_roadveh_details_widgets,

   290

	RoadVehDetailsWndProc

   291

};

   292

   293

static void ShowRoadVehDetailsWindow(const Vehicle *v)

   294

{

   295

	Window *w;

   296

	VehicleID veh = v->index;

   297

   298

	DeleteWindowById(WC_VEHICLE_ORDERS, veh);

   299

	DeleteWindowById(WC_VEHICLE_DETAILS, veh);

   300

	_alloc_wnd_parent_num = veh;

   301

	w = AllocateWindowDesc(&_roadveh_details_desc);

   302

	w->window_number = veh;

   303

	w->caption_color = v->owner;

   304

}

   305

   306

void CcCloneRoadVeh(bool success, TileIndex tile, uint32 p1, uint32 p2)

   307

{

   308

	if (success) ShowRoadVehViewWindow(GetVehicle(_new_vehicle_id));

   309

}

   310

   311

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

   312

{

   313

	switch (e->event) {

   314

	case WE_PAINT: {

   315

		Vehicle *v = GetVehicle(w->window_number);

   316

		StringID str;

   317

   318

		w->disabled_state = (v->owner != _local_player) ? (1 << 8 | 1 << 7 | 1 << 12) : 0;

   319

   320

		/* Disable refit button if vehicle not refittable */

   321

		if (_engine_info[v->engine_type].refit_mask == 0) SETBIT(w->disabled_state, 12);

   322

   323

		/* draw widgets & caption */

   324

		SetDParam(0, v->string_id);

   325

		SetDParam(1, v->unitnumber);

   326

		DrawWindowWidgets(w);

   327

   328

		if (v->u.road.crashed_ctr != 0) {

   329

			str = STR_8863_CRASHED;

   330

		} else if (v->breakdown_ctr == 1) {

   331

			str = STR_885C_BROKEN_DOWN;

   332

		} else if (v->vehstatus & VS_STOPPED) {

   333

			str = STR_8861_STOPPED;

   334

		} else {

   335

			switch (v->current_order.type) {

   336

			case OT_GOTO_STATION: {

   337

				SetDParam(0, v->current_order.dest);

   338

				SetDParam(1, v->cur_speed / 2);

   339

				str = STR_HEADING_FOR_STATION + _patches.vehicle_speed;

   340

			} break;

   341

   342

			case OT_GOTO_DEPOT: {

   343

				Depot *depot = GetDepot(v->current_order.dest);

   344

				SetDParam(0, depot->town_index);

   345

				SetDParam(1, v->cur_speed / 2);

   347

					str = STR_HEADING_FOR_ROAD_DEPOT + _patches.vehicle_speed;

   348

				} else {

   349

					str = STR_HEADING_FOR_ROAD_DEPOT_SERVICE + _patches.vehicle_speed;

   350

				}

   351

			} break;

   352

   353

			case OT_LOADING:

   354

			case OT_LEAVESTATION:

   355

				str = STR_882F_LOADING_UNLOADING;

   356

				break;

   357

   358

			default:

   359

				if (v->num_orders == 0) {

   360

					str = STR_NO_ORDERS + _patches.vehicle_speed;

   361

					SetDParam(0, v->cur_speed / 2);

   362

				} else {

   363

					str = STR_EMPTY;

   364

				}

   365

				break;

   366

			}

   367

		}

   368

   369

		/* draw the flag plus orders */

   370

		DrawSprite(v->vehstatus & VS_STOPPED ? SPR_FLAG_VEH_STOPPED : SPR_FLAG_VEH_RUNNING, 2, w->widget[5].top + 1);

   371

		DrawStringCenteredTruncated(w->widget[5].left + 8, w->widget[5].right, w->widget[5].top + 1, str, 0);

   372

		DrawWindowViewport(w);

   373

	} break;

   374

   375

	case WE_CLICK: {

   376

		const Vehicle *v = GetVehicle(w->window_number);

   377

   378

		switch (e->click.widget) {

   379

		case 5: /* start stop */

   380

			DoCommandP(v->tile, v->index, 0, NULL, CMD_START_STOP_ROADVEH | CMD_MSG(STR_9015_CAN_T_STOP_START_ROAD_VEHICLE));

   381

			break;

   382

		case 6: /* center main view */

   383

			ScrollMainWindowTo(v->x_pos, v->y_pos);

   384

			break;

   385

		case 7: /* goto depot */

   386

			DoCommandP(v->tile, v->index, _ctrl_pressed ? DEPOT_SERVICE : 0, NULL, CMD_SEND_ROADVEH_TO_DEPOT | CMD_MSG(STR_9018_CAN_T_SEND_VEHICLE_TO_DEPOT));

   387

			break;

   388

		case 8: /* turn around */

   389

			DoCommandP(v->tile, v->index, 0, NULL, CMD_TURN_ROADVEH | CMD_MSG(STR_9033_CAN_T_MAKE_VEHICLE_TURN));

   390

			break;

   391

		case 9: /* show orders */

   392

			ShowOrdersWindow(v);

   393

			break;

   394

		case 10: /* show details */

   395

			ShowRoadVehDetailsWindow(v);

   396

			break;

   397

		case 11: /* clone vehicle */

   398

			DoCommandP(v->tile, v->index, _ctrl_pressed ? 1 : 0, CcCloneRoadVeh, CMD_CLONE_VEHICLE | CMD_MSG(STR_9009_CAN_T_BUILD_ROAD_VEHICLE));

   399

			break;

   400

		case 12: /* Refit vehicle */

   401

			ShowRoadVehRefitWindow(v);

   402

			break;

   403

		}

   404

	} break;

   405

   406

	case WE_RESIZE:

   407

		w->viewport->width  += e->sizing.diff.x;

   408

		w->viewport->height += e->sizing.diff.y;

   409

		w->viewport->virtual_width  += e->sizing.diff.x;

   410

		w->viewport->virtual_height += e->sizing.diff.y;

   411

		break;

   412

   413

	case WE_DESTROY:

   414

		DeleteWindowById(WC_VEHICLE_REFIT, w->window_number);

   415

		DeleteWindowById(WC_VEHICLE_ORDERS, w->window_number);

   416

		DeleteWindowById(WC_VEHICLE_DETAILS, w->window_number);

   417

		break;

   418

   419

	case WE_MOUSELOOP:

   420

		{

   421

			const Vehicle *v = GetVehicle(w->window_number);

   422

			uint32 h = IsRoadVehInDepotStopped(v) ? 1 << 7 | 1 << 8 : 1 << 11 | 1 << 12;

   423

   424

			if (h != w->hidden_state) {

   425

				w->hidden_state = h;

   426

				SetWindowDirty(w);

   427

			}

   428

		}

   429

	}

   430

}

   431

   432

static const Widget _roadveh_view_widgets[] = {

   433

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

   434

{ WWT_CAPTION,    RESIZE_RIGHT, 14,  11, 237,   0,  13, STR_9002,          STR_018C_WINDOW_TITLE_DRAG_THIS },

   435

{ WWT_STICKYBOX,  RESIZE_LR,    14, 238, 249,   0,  13, 0x0,               STR_STICKY_BUTTON },

   436

{ WWT_IMGBTN,     RESIZE_RB,    14,   0, 231,  14, 103, 0x0,               STR_NULL },

   437

{ WWT_6,          RESIZE_RB,    14,   2, 229,  16, 101, 0x0,               STR_NULL },

   438

{ WWT_PUSHIMGBTN, RESIZE_RTB,   14,   0, 237, 104, 115, 0x0,               STR_901C_CURRENT_VEHICLE_ACTION },

   439

{ WWT_PUSHIMGBTN, RESIZE_LR,    14, 232, 249,  14,  31, 0x2AB,             STR_901E_CENTER_MAIN_VIEW_ON_VEHICLE },

   440

{ WWT_PUSHIMGBTN, RESIZE_LR,    14, 232, 249,  32,  49, 0x2AE,             STR_901F_SEND_VEHICLE_TO_DEPOT },

   441

{ WWT_PUSHIMGBTN, RESIZE_LR,    14, 232, 249,  50,  67, 0x2CB,             STR_9020_FORCE_VEHICLE_TO_TURN_AROUND },

   442

{ WWT_PUSHIMGBTN, RESIZE_LR,    14, 232, 249,  68,  85, 0x2B2,             STR_901D_SHOW_VEHICLE_S_ORDERS },

   443

{ WWT_PUSHIMGBTN, RESIZE_LR,    14, 232, 249,  86, 103, 0x2B3,             STR_9021_SHOW_ROAD_VEHICLE_DETAILS },

   444

{ WWT_PUSHIMGBTN, RESIZE_LR,    14, 232, 249,  32,  49, SPR_CLONE_ROADVEH, STR_CLONE_ROAD_VEHICLE_INFO },

   445

{ WWT_PUSHIMGBTN, RESIZE_LR,    14, 232, 249,  50,  67, 0x2B4,             STR_REFIT_ROAD_VEHICLE_TO_CARRY },

   446

{ WWT_PANEL,      RESIZE_LRB,   14, 232, 249, 104, 103, 0x0,               STR_NULL },

   447

{ WWT_RESIZEBOX,  RESIZE_LRTB,  14, 238, 249, 104, 115, 0x0,               STR_NULL },

   448

{ WIDGETS_END }

   449

};

   450

   451

static const WindowDesc _roadveh_view_desc = {

   452

	-1,-1, 250, 116,

   453

	WC_VEHICLE_VIEW,0,

   454

	WDF_STD_TOOLTIPS | WDF_STD_BTN | WDF_DEF_WIDGET | WDF_UNCLICK_BUTTONS | WDF_STICKY_BUTTON | WDF_RESIZABLE,

   455

	_roadveh_view_widgets,

   456

	RoadVehViewWndProc,

   457

};

   458

   459

void ShowRoadVehViewWindow(const Vehicle *v)

   460

{

   461

	Window *w = AllocateWindowDescFront(&_roadveh_view_desc, v->index);

   462

   463

	if (w != NULL) {

   464

		w->caption_color = v->owner;

   465

		AssignWindowViewport(w, 3, 17, 0xE2, 0x54, w->window_number | (1 << 31), 0);

   466

	}

   467

}

   468

   469

   470

static void DrawNewRoadVehWindow(Window *w)

   471

{

   472

	EngineID selected_id;

   473

	EngineID e;

   474

	uint count;

   475

	int pos;

   476

	int sel;

   477

	int y;

   478

   479

	if (w->window_number == 0) w->disabled_state = 1 << 5;

   480

   481

	count = 0;

   482

	for (e = ROAD_ENGINES_INDEX; e < ROAD_ENGINES_INDEX + NUM_ROAD_ENGINES; e++) {

   483

		if (HASBIT(GetEngine(e)->player_avail, _local_player)) count++;

   484

	}

   485

	SetVScrollCount(w, count);

   486

   487

	DrawWindowWidgets(w);

   488

   489

	y = 15;

   490

	sel = WP(w,buildtrain_d).sel_index;

   491

	pos = w->vscroll.pos;

   492

	selected_id = INVALID_ENGINE;

   493

	for (e = ROAD_ENGINES_INDEX; e < ROAD_ENGINES_INDEX + NUM_ROAD_ENGINES; e++) {

   494

		if (!HASBIT(GetEngine(e)->player_avail, _local_player)) continue;

   495

		if (sel == 0) selected_id = e;