1

/* $Id$ */

     2

     3

/** @file build_vehicle_gui.cpp */

     4

     5

#include "stdafx.h"

     6

#include "openttd.h"

     7

#include "train.h"

     8

#include "roadveh.h"

     9

#include "ship.h"

    10

#include "aircraft.h"

    11

#include "debug.h"

    12

#include "functions.h"

    13

#include "table/sprites.h"

    14

#include "table/strings.h"

    15

#include "window.h"

    16

#include "gui.h"

    17

#include "vehicle.h"

    18

#include "gfx.h"

    19

#include "station.h"

    20

#include "command.h"

    21

#include "engine.h"

    22

#include "player.h"

    23

#include "depot.h"

    24

#include "airport.h"

    25

#include "vehicle_gui.h"

    26

#include "newgrf_engine.h"

    27

#include "date.h"

    28

#include "strings.h"

    29

#include "cargotype.h"

    30

    31

    32

enum BuildVehicleWidgets {

    33

	BUILD_VEHICLE_WIDGET_CLOSEBOX = 0,

    34

	BUILD_VEHICLE_WIDGET_CAPTION,

    35

	BUILD_VEHICLE_WIDGET_SORT_ASSENDING_DESCENDING,

    36

	BUILD_VEHICLE_WIDGET_SORT_TEXT,

    37

	BUILD_VEHICLE_WIDGET_SORT_DROPDOWN,

    38

	BUILD_VEHICLE_WIDGET_LIST,

    39

	BUILD_VEHICLE_WIDGET_SCROLLBAR,

    40

	BUILD_VEHICLE_WIDGET_PANEL,

    41

	BUILD_VEHICLE_WIDGET_BUILD,

    42

	BUILD_VEHICLE_WIDGET_RENAME,

    43

	BUILD_VEHICLE_WIDGET_RESIZE,

    44

	BUILD_VEHICLE_WIDGET_END

    45

};

    46

    47

static const OldWidget _build_vehicle_widgets[] = {

    48

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

    49

	{    WWT_CAPTION,  RESIZE_RIGHT,    14,    11,   239,     0,    13, 0x0,                     STR_018C_WINDOW_TITLE_DRAG_THIS },

    50

	{ WWT_PUSHTXTBTN,   RESIZE_NONE,    14,     0,    80,    14,    25, STR_SORT_BY,             STR_SORT_ORDER_TIP},

    51

	{      WWT_PANEL,  RESIZE_RIGHT,    14,    81,   227,    14,    25, 0x0,                     STR_SORT_CRITERIA_TIP},

    52

	{    WWT_TEXTBTN,     RESIZE_LR,    14,   228,   239,    14,    25, STR_0225,                STR_SORT_CRITERIA_TIP},

    53

	{     WWT_MATRIX,     RESIZE_RB,    14,     0,   227,    26,   121, 0x0,                     STR_NULL },

    54

	{  WWT_SCROLLBAR,    RESIZE_LRB,    14,   228,   239,    26,   121, 0x0,                     STR_0190_SCROLL_BAR_SCROLLS_LIST },

    55

	{      WWT_PANEL,    RESIZE_RTB,    14,     0,   239,   122,   243, 0x0,                     STR_NULL },

    56

    57

	{ WWT_PUSHTXTBTN,     RESIZE_TB,    14,     0,   114,   244,   255, 0x0,                     STR_NULL },

    58

	{ WWT_PUSHTXTBTN,    RESIZE_RTB,    14,   115,   227,   244,   255, 0x0,                     STR_NULL },

    59

	{  WWT_RESIZEBOX,   RESIZE_LRTB,    14,   228,   239,   244,   255, 0x0,                     STR_RESIZE_BUTTON },

    60

	{   WIDGETS_END},

    61

};

    62

    63

/* Setup widget strings to fit the different types of vehicles */

    64

static void SetupWindowStrings(BaseWindow *w, byte type)

    65

{

    66

	switch (type) {

    67

		case VEH_TRAIN:

    68

			w->widget[BUILD_VEHICLE_WIDGET_CAPTION].data    = STR_JUST_STRING;

    69

			w->widget[BUILD_VEHICLE_WIDGET_LIST].tooltips   = STR_8843_TRAIN_VEHICLE_SELECTION;

    70

			w->widget[BUILD_VEHICLE_WIDGET_BUILD].data      = STR_881F_BUILD_VEHICLE;

    71

			w->widget[BUILD_VEHICLE_WIDGET_BUILD].tooltips  = STR_8844_BUILD_THE_HIGHLIGHTED_TRAIN;

    72

			w->widget[BUILD_VEHICLE_WIDGET_RENAME].data     = STR_8820_RENAME;

    73

			w->widget[BUILD_VEHICLE_WIDGET_RENAME].tooltips = STR_8845_RENAME_TRAIN_VEHICLE_TYPE;

    74

			break;

    75

		case VEH_ROAD:

    76

			w->widget[BUILD_VEHICLE_WIDGET_CAPTION].data    = STR_9006_NEW_ROAD_VEHICLES;

    77

			w->widget[BUILD_VEHICLE_WIDGET_LIST].tooltips   = STR_9026_ROAD_VEHICLE_SELECTION;

    78

			w->widget[BUILD_VEHICLE_WIDGET_BUILD].data      = STR_9007_BUILD_VEHICLE;

    79

			w->widget[BUILD_VEHICLE_WIDGET_BUILD].tooltips  = STR_9027_BUILD_THE_HIGHLIGHTED_ROAD;

    80

			w->widget[BUILD_VEHICLE_WIDGET_RENAME].data     = STR_9034_RENAME;

    81

			w->widget[BUILD_VEHICLE_WIDGET_RENAME].tooltips = STR_9035_RENAME_ROAD_VEHICLE_TYPE;

    82

			break;

    83

		case VEH_SHIP:

    84

			w->widget[BUILD_VEHICLE_WIDGET_CAPTION].data    = STR_9808_NEW_SHIPS;

    85

			w->widget[BUILD_VEHICLE_WIDGET_LIST].tooltips   = STR_9825_SHIP_SELECTION_LIST_CLICK;

    86

			w->widget[BUILD_VEHICLE_WIDGET_BUILD].data      = STR_9809_BUILD_SHIP;

    87

			w->widget[BUILD_VEHICLE_WIDGET_BUILD].tooltips  = STR_9826_BUILD_THE_HIGHLIGHTED_SHIP;

    88

			w->widget[BUILD_VEHICLE_WIDGET_RENAME].data     = STR_9836_RENAME;

    89

			w->widget[BUILD_VEHICLE_WIDGET_RENAME].tooltips = STR_9837_RENAME_SHIP_TYPE;

    90

			break;

    91

		case VEH_AIRCRAFT:

    92

			w->widget[BUILD_VEHICLE_WIDGET_CAPTION].data    = STR_A005_NEW_AIRCRAFT;

    93

			w->widget[BUILD_VEHICLE_WIDGET_LIST].tooltips   = STR_A025_AIRCRAFT_SELECTION_LIST;

    94

			w->widget[BUILD_VEHICLE_WIDGET_BUILD].data      = STR_A006_BUILD_AIRCRAFT;

    95

			w->widget[BUILD_VEHICLE_WIDGET_BUILD].tooltips  = STR_A026_BUILD_THE_HIGHLIGHTED_AIRCRAFT;

    96

			w->widget[BUILD_VEHICLE_WIDGET_RENAME].data     = STR_A037_RENAME;

    97

			w->widget[BUILD_VEHICLE_WIDGET_RENAME].tooltips = STR_A038_RENAME_AIRCRAFT_TYPE;

    98

			break;

    99

	}

   100

}

   101

   102

static bool _internal_sort_order; // descending/ascending

   103

   104

static byte _last_sort_criteria[]    = {0, 0, 0, 0};

   105

static bool _last_sort_order[]       = {false, false, false, false};

   106

   107

static int CDECL EngineNumberSorter(const void *a, const void *b)

   108

{

   109

	const EngineID va = *(const EngineID*)a;

   110

	const EngineID vb = *(const EngineID*)b;

   111

	int r = va - vb;

   112

   113

	return _internal_sort_order ? -r : r;

   114

}

   115

   116

static int CDECL EngineIntroDateSorter(const void *a, const void *b)

   117

{

   118

	const int va = GetEngine(*(const EngineID*)a)->intro_date;

   119

	const int vb = GetEngine(*(const EngineID*)b)->intro_date;

   120

	const int r = va - vb;

   121

   122

	if (r == 0) {

   123

		/* Use EngineID to sort instead since we want consistent sorting */

   124

		return EngineNumberSorter(a, b);

   125

	}

   126

	return _internal_sort_order ? -r : r;

   127

}

   128

   129

static int CDECL EngineNameSorter(const void *a, const void *b)

   130

{

   131

	static EngineID last_engine[2] = { INVALID_ENGINE, INVALID_ENGINE };

   132

	static char     last_name[2][64] = { "\0", "\0" };

   133

   134

	const EngineID va = *(const EngineID*)a;

   135

	const EngineID vb = *(const EngineID*)b;

   136

	int r;

   137

   138

	if (va != last_engine[0]) {

   139

		last_engine[0] = va;

   140

		GetString(last_name[0], GetCustomEngineName(va), lastof(last_name[0]));

   141

	}

   142

   143

	if (vb != last_engine[1]) {

   144

		last_engine[1] = vb;

   145

		GetString(last_name[1], GetCustomEngineName(vb), lastof(last_name[1]));

   146

	}

   147

   148

	r = strcmp(last_name[0], last_name[1]); // sort by name

   149

   150

	if (r == 0) {

   151

		/* Use EngineID to sort instead since we want consistent sorting */

   152

		return EngineNumberSorter(a, b);

   153

	}

   154

	return _internal_sort_order ? -r : r;

   155

}

   156

   157

static int CDECL EngineReliabilitySorter(const void *a, const void *b)

   158

{

   159

	const int va = GetEngine(*(const EngineID*)a)->reliability;

   160

	const int vb = GetEngine(*(const EngineID*)b)->reliability;

   161

	const int r = va - vb;

   162

   163

	if (r == 0) {

   164

		/* Use EngineID to sort instead since we want consistent sorting */

   165

		return EngineNumberSorter(a, b);

   166

	}

   167

	return _internal_sort_order ? -r : r;

   168

}

   169

   170

/* Train sorting functions */

   171

static int CDECL TrainEngineCostSorter(const void *a, const void *b)

   172

{

   173

	int va = RailVehInfo(*(const EngineID*)a)->base_cost;

   174

	int vb = RailVehInfo(*(const EngineID*)b)->base_cost;

   175

	int r = va - vb;

   176

   177

	return _internal_sort_order ? -r : r;

   178

}

   179

   180

static int CDECL TrainEngineSpeedSorter(const void *a, const void *b)

   181

{

   182

	int va = RailVehInfo(*(const EngineID*)a)->max_speed;

   183

	int vb = RailVehInfo(*(const EngineID*)b)->max_speed;

   184

	int r = va - vb;

   185

   186

	return _internal_sort_order ? -r : r;

   187

}

   188

   189

static int CDECL TrainEnginePowerSorter(const void *a, const void *b)

   190

{

   191

	const RailVehicleInfo *rvi_a = RailVehInfo(*(const EngineID*)a);

   192

	const RailVehicleInfo *rvi_b = RailVehInfo(*(const EngineID*)b);

   193

   194

	int va = rvi_a->power << (rvi_a->railveh_type == RAILVEH_MULTIHEAD ? 1 : 0);

   195

	int vb = rvi_b->power << (rvi_b->railveh_type == RAILVEH_MULTIHEAD ? 1 : 0);

   196

	int r = va - vb;

   197

   198

	return _internal_sort_order ? -r : r;

   199

}

   200

   201

static int CDECL TrainEngineRunningCostSorter(const void *a, const void *b)

   202

{

   203

	const RailVehicleInfo *rvi_a = RailVehInfo(*(const EngineID*)a);

   204

	const RailVehicleInfo *rvi_b = RailVehInfo(*(const EngineID*)b);

   205

   206

	int va = rvi_a->running_cost_base * _price.running_rail[rvi_a->running_cost_class] * (rvi_a->railveh_type == RAILVEH_MULTIHEAD ? 2 : 1);

   207

	int vb = rvi_b->running_cost_base * _price.running_rail[rvi_b->running_cost_class] * (rvi_b->railveh_type == RAILVEH_MULTIHEAD ? 2 : 1);

   208

	int r = va - vb;

   209

   210

	return _internal_sort_order ? -r : r;

   211

}

   212

   213

static int CDECL TrainEnginePowerVsRunningCostSorter(const void *a, const void *b)

   214

{

   215

	const RailVehicleInfo *rvi_a = RailVehInfo(*(const EngineID*)a);

   216

	const RailVehicleInfo *rvi_b = RailVehInfo(*(const EngineID*)b);

   217

   218

	/* Here we are using a few tricks to get the right sort.

   219

		* We want power/running cost, but since we usually got higher running cost than power and we store the result in an int,

   220

		* we will actually calculate cunning cost/power (to make it more than 1).

   221

		* Because of this, the return value have to be reversed as well and we return b - a instead of a - b.

   222

		* Another thing is that both power and running costs should be doubled for multiheaded engines.

   223

		* Since it would be multipling with 2 in both numerator and denumerator, it will even themselves out and we skip checking for multiheaded. */

   224

	int va = (rvi_a->running_cost_base * _price.running_rail[rvi_a->running_cost_class]) / max((uint16)1, rvi_a->power);

   225

	int vb = (rvi_b->running_cost_base * _price.running_rail[rvi_b->running_cost_class]) / max((uint16)1, rvi_b->power);

   226

	int r = vb - va;

   227

   228

	return _internal_sort_order ? -r : r;

   229

}

   230

   231

static int CDECL TrainEngineNumberSorter(const void *a, const void *b)

   232

{

   233

	const EngineID va = *(const EngineID*)a;

   234

	const EngineID vb = *(const EngineID*)b;

   235

	int r = ListPositionOfEngine(va) - ListPositionOfEngine(vb);

   236

   237

	return _internal_sort_order ? -r : r;

   238

}

   239

   240

static int CDECL TrainEnginesThenWagonsSorter(const void *a, const void *b)

   241

{

   242

	EngineID va = *(const EngineID*)a;

   243

	EngineID vb = *(const EngineID*)b;

   244

	int val_a = (RailVehInfo(va)->railveh_type == RAILVEH_WAGON ? 1 : 0);

   245

	int val_b = (RailVehInfo(vb)->railveh_type == RAILVEH_WAGON ? 1 : 0);

   246

	int r = val_a - val_b;

   247

   248

	/* Use EngineID to sort instead since we want consistent sorting */

   249

	if (r == 0) return EngineNumberSorter(a, b);

   250

   251

	return _internal_sort_order ? -r : r;

   252

}

   253

   254

/* Aircraft sorting functions */

   255

   256

static int CDECL AircraftEngineCostSorter(const void *a, const void *b)

   257

{

   258

	const int va = AircraftVehInfo(*(const EngineID*)a)->base_cost;

   259

	const int vb = AircraftVehInfo(*(const EngineID*)b)->base_cost;

   260

	int r = va - vb;

   261

   262

	return _internal_sort_order ? -r : r;

   263

}

   264

   265

static int CDECL AircraftEngineSpeedSorter(const void *a, const void *b)

   266

{

   267

	const int va = AircraftVehInfo(*(const EngineID*)a)->max_speed;

   268

	const int vb = AircraftVehInfo(*(const EngineID*)b)->max_speed;

   269

	const int r = va - vb;

   270

   271

	if (r == 0) {

   272

		/* Use EngineID to sort instead since we want consistent sorting */

   273

		return EngineNumberSorter(a, b);

   274

	}

   275

	return _internal_sort_order ? -r : r;

   276

}

   277

   278

static int CDECL AircraftEngineRunningCostSorter(const void *a, const void *b)

   279

{

   280

	const int va = AircraftVehInfo(*(const EngineID*)a)->running_cost;

   281

	const int vb = AircraftVehInfo(*(const EngineID*)b)->running_cost;

   282

	const int r = va - vb;

   283

   284

	if (r == 0) {

   285

		/* Use EngineID to sort instead since we want consistent sorting */

   286

		return EngineNumberSorter(a, b);

   287

	}

   288

	return _internal_sort_order ? -r : r;

   289

}

   290

   291

static int CDECL AircraftEngineCargoSorter(const void *a, const void *b)

   292

{

   293

	const int va = AircraftVehInfo(*(const EngineID*)a)->passenger_capacity;

   294

	const int vb = AircraftVehInfo(*(const EngineID*)b)->passenger_capacity;

   295

	const int r = va - vb;

   296

   297

	if (r == 0) {

   298

		/* Use EngineID to sort instead since we want consistent sorting */

   299

		return EngineNumberSorter(a, b);

   300

	}

   301

	return _internal_sort_order ? -r : r;

   302

}

   303

   304

static EngList_SortTypeFunction * const _sorter[][9] = {{

   305

	/* Trains */

   306

	&TrainEngineNumberSorter,

   307

	&TrainEngineCostSorter,

   308

	&TrainEngineSpeedSorter,

   309

	&TrainEnginePowerSorter,

   310

	&EngineIntroDateSorter,

   311

	&EngineNameSorter,

   312

	&TrainEngineRunningCostSorter,

   313

	&TrainEnginePowerVsRunningCostSorter,

   314

	&EngineReliabilitySorter,

   316

	/* Road vehicles */

   317

	&EngineNumberSorter,

   318

	&EngineIntroDateSorter,

   319

	&EngineNameSorter,

   320

	&EngineReliabilitySorter,

   322

	/* Ships */

   323

	&EngineNumberSorter,

   324

	&EngineIntroDateSorter,

   325

	&EngineNameSorter,

   326

	&EngineReliabilitySorter,

   328

	/* Aircraft */

   329

	&EngineNumberSorter,

   330

	&AircraftEngineCostSorter,

   331

	&AircraftEngineSpeedSorter,

   332

	&EngineIntroDateSorter,

   333

	&EngineNameSorter,

   334

	&AircraftEngineRunningCostSorter,

   335

	&EngineReliabilitySorter,

   336

	&AircraftEngineCargoSorter,

   337

}};

   338

   339

static const StringID _sort_listing[][10] = {{

   340

	/* Trains */

   341

	STR_ENGINE_SORT_ENGINE_ID,

   342

	STR_ENGINE_SORT_COST,

   343

	STR_SORT_BY_MAX_SPEED,

   344

	STR_ENGINE_SORT_POWER,

   345

	STR_ENGINE_SORT_INTRO_DATE,

   346

	STR_SORT_BY_DROPDOWN_NAME,

   347

	STR_ENGINE_SORT_RUNNING_COST,

   348

	STR_ENGINE_SORT_POWER_VS_RUNNING_COST,

   349

	STR_SORT_BY_RELIABILITY,

   350

	INVALID_STRING_ID

   352

	/* Road vehicles */

   353

	STR_ENGINE_SORT_ENGINE_ID,

   354

	STR_ENGINE_SORT_INTRO_DATE,

   355

	STR_SORT_BY_DROPDOWN_NAME,

   356

	STR_SORT_BY_RELIABILITY,

   357

	INVALID_STRING_ID

   359

	/* Ships */

   360

	STR_ENGINE_SORT_ENGINE_ID,

   361

	STR_ENGINE_SORT_INTRO_DATE,

   362

	STR_SORT_BY_DROPDOWN_NAME,

   363

	STR_SORT_BY_RELIABILITY,

   364

	INVALID_STRING_ID

   366

	/* Aircraft */

   367

	STR_ENGINE_SORT_ENGINE_ID,

   368

	STR_ENGINE_SORT_COST,

   369

	STR_SORT_BY_MAX_SPEED,

   370

	STR_ENGINE_SORT_INTRO_DATE,

   371

	STR_SORT_BY_DROPDOWN_NAME,

   372

	STR_ENGINE_SORT_RUNNING_COST,

   373

	STR_SORT_BY_RELIABILITY,

   374

	STR_ENGINE_SORT_CARGO_CAPACITY,

   375

	INVALID_STRING_ID

   376

}};

   377

   378

/* Draw rail wagon specific details */

   379

static int DrawRailWagonPurchaseInfo(int x, int y, EngineID engine_number, const RailVehicleInfo *rvi)

   380

{

   381

	/* Purchase cost */

   382

	SetDParam(0, (rvi->base_cost * _price.build_railwagon) >> 8);

   383

	DrawString(x, y, STR_PURCHASE_INFO_COST, 0);

   384

	y += 10;

   385

   386

	/* Wagon weight - (including cargo) */

   387

	SetDParam(0, rvi->weight);

   388

	SetDParam(1, (GetCargo(rvi->cargo_type)->weight * rvi->capacity >> 4) + rvi->weight);

   389

	DrawString(x, y, STR_PURCHASE_INFO_WEIGHT_CWEIGHT, 0);

   390

	y += 10;

   391

   392

	/* Wagon speed limit, displayed if above zero */

   393

	if (rvi->max_speed > 0 && _patches.wagon_speed_limits) {

   394

		SetDParam(0, rvi->max_speed * 10 / 16);

   396

		y += 10;

   397

	}

   398

	return y;

   399

}

   400

   401

/* Draw locomotive specific details */

   402

static int DrawRailEnginePurchaseInfo(int x, int y, EngineID engine_number, const RailVehicleInfo *rvi)

   403

{

   404

	int multihead = (rvi->railveh_type == RAILVEH_MULTIHEAD ? 1 : 0);

   405

   406

	/* Purchase Cost - Engine weight */

   407

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

   408

	SetDParam(1, rvi->weight << multihead);

   410

	y += 10;

   411

   412

	/* Max speed - Engine power */

   413

	SetDParam(0, rvi->max_speed * 10 / 16);

   414

	SetDParam(1, rvi->power << multihead);

   416

	y += 10;

   417

   418

	/* Max tractive effort - not applicable if old acceleration or maglev */

   419

	if (_patches.realistic_acceleration && rvi->railtype != RAILTYPE_MAGLEV) {

   420

		SetDParam(0, ((rvi->weight << multihead) * 10 * rvi->tractive_effort) / 256);

   421

		DrawString(x, y, STR_PURCHASE_INFO_MAX_TE, 0);

   422

		y += 10;

   423

	}

   424

   425

	/* Running cost */

   428

	y += 10;

   429

   430

	/* Powered wagons power - Powered wagons extra weight */

   431

	if (rvi->pow_wag_power != 0) {

   432

		SetDParam(0, rvi->pow_wag_power);

   433

		SetDParam(1, rvi->pow_wag_weight);

   435

		y += 10;

   436

	};

   437

   438

	return y;

   439

}

   440

   441

/* Draw road vehicle specific details */

   442

static int DrawRoadVehPurchaseInfo(int x, int y, EngineID engine_number, const RoadVehicleInfo *rvi)

   443

{

   444

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

   445

   446

	/* Purchase cost - Max speed */

   448

	SetDParam(1, rvi->max_speed * 10 / 32);

   449

	DrawString(x, y, STR_PURCHASE_INFO_COST_SPEED, 0);

   450

	y += 10;

   451

   452

	/* Running cost */

   453

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

   454

	DrawString(x, y, STR_PURCHASE_INFO_RUNNINGCOST, 0);

   455

	y += 10;

   456

   457

	/* Cargo type + capacity */

   458

	SetDParam(0, rvi->cargo_type);

   459

	SetDParam(1, rvi->capacity);

   460

	SetDParam(2, refittable ? STR_9842_REFITTABLE : STR_EMPTY);

   461

	DrawString(x, y, STR_PURCHASE_INFO_CAPACITY, 0);

   462

	y += 10;

   463

   464

	return y;

   465

}

   466

   467

/* Draw ship specific details */

   468

static int DrawShipPurchaseInfo(int x, int y, EngineID engine_number, const ShipVehicleInfo *svi)

   469

{

   470

	/* Purchase cost - Max speed */

   472

	SetDParam(1, svi->max_speed * 10 / 32);

   474

	y += 10;

   475

   476

	/* Cargo type + capacity */

   477

	SetDParam(0, svi->cargo_type);

   478

	SetDParam(1, svi->capacity);

   479

	SetDParam(2, svi->refittable ? STR_9842_REFITTABLE : STR_EMPTY);

   481

	y += 10;

   482

   483

	/* Running cost */

   486

	y += 10;

   487

   488

	return y;

   489

}

   490

   491

/* Draw aircraft specific details */

   492

static int DrawAircraftPurchaseInfo(int x, int y, EngineID engine_number, const AircraftVehicleInfo *avi)

   493

{

   494

	CargoID cargo;

   495

   496

	/* Purchase cost - Max speed */

   498

	SetDParam(1, avi->max_speed * 10 / 16);