1

/* $Id$ */

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#include "stdafx.h"

     4

#include "openttd.h"

     5

#include "debug.h"

     6

#include "functions.h"

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#include "table/strings.h"

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#include "map.h"

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#include "tile.h"

    10

#include "vehicle.h"

    11

#include "depot.h"

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#include "engine.h"

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#include "command.h"

    14

#include "station.h"

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#include "news.h"

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#include "sound.h"

    17

#include "player.h"

    18

#include "airport.h"

    19

#include "vehicle_gui.h"

    20

#include "table/sprites.h"

    21

#include "newgrf_engine.h"

    22

    23

static bool AirportMove(Vehicle *v, const AirportFTAClass *Airport);

    24

static bool AirportSetBlocks(Vehicle *v, AirportFTA *current_pos, const AirportFTAClass *Airport);

    25

static bool AirportHasBlock(Vehicle *v, AirportFTA *current_pos, const AirportFTAClass *Airport);

    26

static bool AirportFindFreeTerminal(Vehicle *v, const AirportFTAClass *Airport);

    27

static bool AirportFindFreeHelipad(Vehicle *v, const AirportFTAClass *Airport);

    28

static void AirportGoToNextPosition(Vehicle *v, const AirportFTAClass *Airport);

    29

static void CrashAirplane(Vehicle *v);

    30

    31

static void AircraftNextAirportPos_and_Order(Vehicle *v);

    32

static byte GetAircraftFlyingAltitude(const Vehicle *v);

    33

    34

static const SpriteID _aircraft_sprite[] = {

    35

	0x0EB5, 0x0EBD, 0x0EC5, 0x0ECD,

    36

	0x0ED5, 0x0EDD, 0x0E9D, 0x0EA5,

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	0x0EAD, 0x0EE5, 0x0F05, 0x0F0D,

    38

	0x0F15, 0x0F1D, 0x0F25, 0x0F2D,

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	0x0EED, 0x0EF5, 0x0EFD, 0x0F35,

    40

	0x0E9D, 0x0EA5, 0x0EAD, 0x0EB5,

    41

	0x0EBD, 0x0EC5

    42

};

    43

    44

/* Find the nearest hangar to v

    45

 * INVALID_STATION is returned, if the player does not have any suitable

    46

 * airports (like helipads only)

    47

 */

    48

static StationID FindNearestHangar(const Vehicle *v)

    49

{

    50

	const Station *st;

    51

	uint best = 0;

    52

	StationID index = INVALID_STATION;

    53

    54

	FOR_ALL_STATIONS(st) {

    55

		if (st->owner == v->owner && st->facilities & FACIL_AIRPORT &&

    56

				GetAirport(st->airport_type)->nof_depots > 0) {

    57

			uint distance;

    58

    59

			// don't crash the plane if we know it can't land at the airport

    60

			if (HASBIT(v->subtype, 1) && st->airport_type == AT_SMALL &&

    61

					!_cheats.no_jetcrash.value)

    62

				continue;

    63

    64

			distance = DistanceSquare(v->tile, st->airport_tile);

    65

			if (distance < best || index == INVALID_STATION) {

    66

				best = distance;

    67

				index = st->index;

    68

			}

    69

		}

    70

	}

    71

	return index;

    72

}

    73

    74

#if 0

    75

// returns true if vehicle v have an airport in the schedule, that has a hangar

    76

static bool HaveHangarInOrderList(Vehicle *v)

    77

{

    78

	const Order *order;

    79

    80

	FOR_VEHICLE_ORDERS(v, order) {

    81

		const Station *st = GetStation(order->station);

    82

		if (st->owner == v->owner && st->facilities & FACIL_AIRPORT) {

    83

			// If an airport doesn't have terminals (so no landing space for airports),

    84

			// it surely doesn't have any hangars

    85

			if (GetAirport(st->airport_type)->terminals != NULL)

    86

				return true;

    87

		}

    88

	}

    89

    90

	return false;

    91

}

    92

#endif

    93

    94

int GetAircraftImage(const Vehicle *v, byte direction)

    95

{

    96

	int spritenum = v->spritenum;

    97

    98

	if (is_custom_sprite(spritenum)) {

    99

		int sprite = GetCustomVehicleSprite(v, direction);

   100

   101

		if (sprite != 0) return sprite;

   102

		spritenum = orig_aircraft_vehicle_info[v->engine_type - AIRCRAFT_ENGINES_INDEX].image_index;

   103

	}

   104

	return direction + _aircraft_sprite[spritenum];

   105

}

   106

   107

void DrawAircraftEngine(int x, int y, EngineID engine, uint32 image_ormod)

   108

{

   109

	int spritenum = AircraftVehInfo(engine)->image_index;

   110

	int sprite = (6 + _aircraft_sprite[spritenum]);

   111

   112

	if (is_custom_sprite(spritenum)) {

   113

		sprite = GetCustomVehicleIcon(engine, 6);

   114

		if (!sprite)

   115

			spritenum = orig_aircraft_vehicle_info[engine - AIRCRAFT_ENGINES_INDEX].image_index;

   116

	}

   117

   118

	DrawSprite(sprite | image_ormod, x, y);

   119

   120

	if ((AircraftVehInfo(engine)->subtype & 1) == 0) {

   121

		DrawSprite(SPR_ROTOR_STOPPED, x, y - 5);

   122

	}

   123

}

   124

   125

static int32 EstimateAircraftCost(EngineID engine_type)

   126

{

   127

	return AircraftVehInfo(engine_type)->base_cost * (_price.aircraft_base>>3)>>5;

   128

}

   129

   130

   131

/** Build an aircraft.

   132

 * @param x,y tile coordinates of depot where aircraft is built

   133

 * @param p1 aircraft type being built (engine)

   134

 * @param p2 unused

   135

 */

   136

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

   137

{

   138

	int32 value;

   139

	Vehicle *vl[3], *v, *u, *w;

   140

	UnitID unit_num;

   141

	TileIndex tile = TileVirtXY(x, y);

   142

	const AircraftVehicleInfo *avi;

   143

	Engine *e;

   144

   145

	if (!IsEngineBuildable(p1, VEH_Aircraft)) return_cmd_error(STR_ENGINE_NOT_BUILDABLE);

   146

   147

	value = EstimateAircraftCost(p1);

   148

   149

	// to just query the cost, it is not neccessary to have a valid tile (automation/AI)

   150

	if (flags & DC_QUERY_COST) return value;

   151

   152

	if (!IsAircraftHangarTile(tile) || !IsTileOwner(tile, _current_player)) return CMD_ERROR;

   153

   154

	SET_EXPENSES_TYPE(EXPENSES_NEW_VEHICLES);

   155

   156

	avi = AircraftVehInfo(p1);

   157

	// allocate 2 or 3 vehicle structs, depending on type

   158

	if (!AllocateVehicles(vl, (avi->subtype & 1) == 0 ? 3 : 2) ||

   159

			IsOrderPoolFull()) {

   160

		return_cmd_error(STR_00E1_TOO_MANY_VEHICLES_IN_GAME);

   161

	}

   162

   163

	unit_num = GetFreeUnitNumber(VEH_Aircraft);

   164

	if (unit_num > _patches.max_aircraft)

   165

		return_cmd_error(STR_00E1_TOO_MANY_VEHICLES_IN_GAME);

   166

   167

	if (flags & DC_EXEC) {

   168

		v = vl[0];

   169

		u = vl[1];

   170

   171

		v->unitnumber = unit_num;

   172

		v->type = u->type = VEH_Aircraft;

   173

		v->direction = 3;

   174

   175

		v->owner = u->owner = _current_player;

   176

   177

		v->tile = tile;

   178

//		u->tile = 0;

   179

   180

		x = TileX(tile) * 16 + 5;

   181

		y = TileY(tile) * 16 + 3;

   182

   183

		v->x_pos = u->x_pos = x;

   184

		v->y_pos = u->y_pos = y;

   185

   186

		u->z_pos = GetSlopeZ(x, y);

   187

		v->z_pos = u->z_pos + 1;

   188

   189

		v->x_offs = v->y_offs = -1;

   190

//		u->delta_x = u->delta_y = 0;

   191

   192

		v->sprite_width = v->sprite_height = 2;

   193

		v->z_height = 5;

   194

   195

		u->sprite_width = u->sprite_height = 2;

   196

		u->z_height = 1;

   197

   198

		v->vehstatus = VS_HIDDEN | VS_STOPPED | VS_DEFPAL;

   199

		u->vehstatus = VS_HIDDEN | VS_UNCLICKABLE | VS_DISASTER;

   200

   201

		v->spritenum = avi->image_index;

   202

//		v->cargo_count = u->number_of_pieces = 0;

   203

   204

		v->cargo_cap = avi->passenger_capacity;

   205

		u->cargo_cap = avi->mail_capacity;

   206

   207

		v->cargo_type = CT_PASSENGERS;

   208

		u->cargo_type = CT_MAIL;

   209

   210

		v->string_id = STR_SV_AIRCRAFT_NAME;

   211

//		v->next_order_param = v->next_order = 0;

   212

   213

//		v->load_unload_time_rem = 0;

   214

//		v->progress = 0;

   215

		v->last_station_visited = INVALID_STATION;

   216

//		v->destination_coords = 0;

   217

   218

		v->max_speed = avi->max_speed;

   219

		v->acceleration = avi->acceleration;

   220

		v->engine_type = p1;

   221

   222

		v->subtype = (avi->subtype & 1) == 0 ? 0 : 2;

   223

		v->value = value;

   224

   225

		u->subtype = 4;

   226

   227

		e = GetEngine(p1);

   228

		v->reliability = e->reliability;

   229

		v->reliability_spd_dec = e->reliability_spd_dec;

   230

		v->max_age = e->lifelength * 366;

   231

   232

		_new_aircraft_id = v->index;

   233

		_new_vehicle_id = v->index;

   234

   235

		v->u.air.pos = MAX_ELEMENTS;

   236

   237

		/* When we click on hangar we know the tile it is on. By that we know

   238

		 * its position in the array of depots the airport has.....we can search

   239

		 * layout for #th position of depot. Since layout must start with a listing

   240

		 * of all depots, it is simple */

   241

		{

   242

			const Station* st = GetStation(_m[tile].m2);

   243

			const AirportFTAClass* apc = GetAirport(st->airport_type);

   244

			uint i;

   245

   246

			for (i = 0; i < apc->nof_depots; i++) {

   247

				if (st->airport_tile + ToTileIndexDiff(apc->airport_depots[i]) == tile) {

   248

					assert(apc->layout[i].heading == HANGAR);

   249

					v->u.air.pos = apc->layout[i].position;

   250

					break;

   251

				}

   252

			}

   253

			// to ensure v->u.air.pos has been given a value

   254

			assert(v->u.air.pos != MAX_ELEMENTS);

   255

		}

   256

   257

		v->u.air.state = HANGAR;

   258

		v->u.air.previous_pos = v->u.air.pos;

   259

		v->u.air.targetairport = _m[tile].m2;

   260

		v->next = u;

   261

   262

		v->service_interval = _patches.servint_aircraft;

   263

   264

		v->date_of_last_service = _date;

   265

		v->build_year = u->build_year = _cur_year;

   266

   267

		v->cur_image = u->cur_image = 0xEA0;

   268

   269

		v->random_bits = VehicleRandomBits();

   270

		u->random_bits = VehicleRandomBits();

   271

   272

		VehiclePositionChanged(v);

   273

		VehiclePositionChanged(u);

   274

   275

		// Aircraft with 3 vehicles (chopper)?

   276

		if (v->subtype == 0) {

   277

			w = vl[2];

   278

   279

			u->next = w;

   280

   281

			w->type = VEH_Aircraft;

   282

			w->direction = 0;

   283

			w->owner = _current_player;

   284

			w->x_pos = v->x_pos;

   285

			w->y_pos = v->y_pos;

   286

			w->z_pos = v->z_pos + 5;

   287

			w->x_offs = w->y_offs = -1;

   288

			w->sprite_width = w->sprite_height = 2;

   289

			w->z_height = 1;

   290

			w->vehstatus = VS_HIDDEN | VS_UNCLICKABLE;

   291

			w->subtype = 6;

   292

			w->cur_image = SPR_ROTOR_STOPPED;

   293

			w->random_bits = VehicleRandomBits();

   294

			VehiclePositionChanged(w);

   295

		}

   296

   297

		InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);

   298

		RebuildVehicleLists();

   299

		InvalidateWindow(WC_COMPANY, v->owner);

   300

		if (IsLocalPlayer())

   301

			InvalidateWindow(WC_REPLACE_VEHICLE, VEH_Aircraft); //updates the replace Aircraft window

   302

	}

   303

   304

	return value;

   305

}

   306

   307

bool IsAircraftHangarTile(TileIndex tile)

   308

{

   309

	// 0x56 - hangar facing other way international airport (86)

   310

	// 0x20 - hangar large airport (32)

   311

	// 0x41 - hangar small airport (65)

   312

	return IsTileType(tile, MP_STATION) &&

   313

				(_m[tile].m5 == 32 || _m[tile].m5 == 65 || _m[tile].m5 == 86);

   314

}

   315

   316

bool CheckStoppedInHangar(const Vehicle* v)

   317

{

   318

	if (!(v->vehstatus & VS_STOPPED) || !IsAircraftHangarTile(v->tile)) {

   319

		_error_message = STR_A01B_AIRCRAFT_MUST_BE_STOPPED;

   320

		return false;

   321

	}

   322

   323

	return true;

   324

}

   325

   326

   327

static void DoDeleteAircraft(Vehicle *v)

   328

{

   329

	DeleteWindowById(WC_VEHICLE_VIEW, v->index);

   330

	RebuildVehicleLists();

   331

	InvalidateWindow(WC_COMPANY, v->owner);

   332

	DeleteVehicleChain(v);

   333

	InvalidateWindowClasses(WC_AIRCRAFT_LIST);

   334

}

   335

   336

/** Sell an aircraft.

   337

 * @param x,y unused

   338

 * @param p1 vehicle ID to be sold

   339

 * @param p2 unused

   340

 */

   341

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

   342

{

   343

	Vehicle *v;

   344

   345

	if (!IsVehicleIndex(p1)) return CMD_ERROR;

   346

   347

	v = GetVehicle(p1);

   348

   349

	if (v->type != VEH_Aircraft || !CheckOwnership(v->owner) || !CheckStoppedInHangar(v))

   350

		return CMD_ERROR;

   351

   352

	SET_EXPENSES_TYPE(EXPENSES_NEW_VEHICLES);

   353

   354

	if (flags & DC_EXEC) {

   355

		// Invalidate depot

   356

		InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);

   357

		DoDeleteAircraft(v);

   358

		if (IsLocalPlayer())

   359

			InvalidateWindow(WC_REPLACE_VEHICLE, VEH_Aircraft); // updates the replace Aircraft window

   360

	}

   361

   362

	return -(int32)v->value;

   363

}

   364

   365

/** Start/Stop an aircraft.

   366

 * @param x,y unused

   367

 * @param p1 aircraft ID to start/stop

   368

 * @param p2 unused

   369

 */

   370

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

   371

{

   372

	Vehicle *v;

   373

   374

	if (!IsVehicleIndex(p1)) return CMD_ERROR;

   375

   376

	v = GetVehicle(p1);

   377

   378

	if (v->type != VEH_Aircraft || !CheckOwnership(v->owner)) return CMD_ERROR;

   379

   380

	// cannot stop airplane when in flight, or when taking off / landing

   381

	if (v->u.air.state >= STARTTAKEOFF)

   382

		return_cmd_error(STR_A017_AIRCRAFT_IS_IN_FLIGHT);

   383

   384

	if (flags & DC_EXEC) {

   389

		v->vehstatus ^= VS_STOPPED;

   390

		InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, STATUS_BAR);

   391

		InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);

   392

		InvalidateWindowClasses(WC_AIRCRAFT_LIST);

   393

	}

   394

   395

	return 0;

   396

}

   397

   398

/** Send an aircraft to the hangar.

   399

 * @param x,y unused

   400

 * @param p1 vehicle ID to send to the hangar

   401

 * @param p2 various bitmasked elements

   402

 * - p2 = 0      - aircraft goes to the depot and stays there (user command)

   403

 * - p2 non-zero - aircraft will try to goto a depot, but not stop there (eg forced servicing)

   404

 * - p2 (bit 17) - aircraft will try to goto a depot at the next airport

   405

 */

   406

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

   407

{

   408

	Vehicle *v;

   409

   410

	if (!IsVehicleIndex(p1)) return CMD_ERROR;

   411

   412

	v = GetVehicle(p1);

   413

   414

	if (v->type != VEH_Aircraft || !CheckOwnership(v->owner)) return CMD_ERROR;

   415

   416

	if (v->current_order.type == OT_GOTO_DEPOT && p2 == 0) {

   417

		if (flags & DC_EXEC) {

   418

			if (v->current_order.flags & OF_UNLOAD) v->cur_order_index++;

   419

			v->current_order.type = OT_DUMMY;

   420

			v->current_order.flags = 0;

   421

			InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, STATUS_BAR);

   422

		}

   423

	} else {

   424

		bool next_airport_has_hangar = true;

   425

		/* XXX - I don't think p2 is any valid station cause all calls use either 0, 1, or 1<<16!!!!!!!!! */

   426

		StationID next_airport_index = (HASBIT(p2, 17)) ? (StationID)p2 : v->u.air.targetairport;

   427

		const Station *st = GetStation(next_airport_index);

   428

		// If an airport doesn't have terminals (so no landing space for airports),

   429

		// it surely doesn't have any hangars

   430

		if (!IsValidStation(st) || st->airport_tile == 0 || GetAirport(st->airport_type)->nof_depots == 0) {

   431

			StationID station;

   432

   433

			if (p2 != 0) return CMD_ERROR;

   434

			// the aircraft has to search for a hangar on its own

   435

			station = FindNearestHangar(v);

   436

   437

			next_airport_has_hangar = false;

   438

			if (station == INVALID_STATION) return CMD_ERROR;

   439

			st = GetStation(station);

   440

			next_airport_index = station;

   441

   442

		}

   443

   444

		if (flags & DC_EXEC) {

   445

			v->current_order.type = OT_GOTO_DEPOT;

   446

			v->current_order.flags = HASBIT(p2, 16) ? 0 : OF_NON_STOP | OF_FULL_LOAD;

   447

			v->current_order.station = next_airport_index;

   448

			InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, STATUS_BAR);

   449

			if (HASBIT(p2, 17) || (p2 == 0 && v->u.air.state == FLYING && !next_airport_has_hangar)) {

   450

			// the aircraft is now heading for a different hangar than the next in the orders

   451

				AircraftNextAirportPos_and_Order(v);

   452

				v->u.air.targetairport = next_airport_index;

   453

			}

   454

		}

   455

	}

   456

   457

	return 0;

   458

}

   459

   460

   461

/** Refits an aircraft to the specified cargo type.

   462

 * @param x,y unused

   463

 * @param p1 vehicle ID of the aircraft to refit

   464

 * @param p2 various bitstuffed elements

   465

 * - p2 = (bit 0-7) - the new cargo type to refit to

   466

 */

   467

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

   468

{

   469

	Vehicle *v;

   470

	int pass, mail;

   471

	int32 cost;

   472

	CargoID new_cid = GB(p2, 0, 8);

   473

	const AircraftVehicleInfo *avi;

   474

   475

	if (!IsVehicleIndex(p1)) return CMD_ERROR;

   476

   477

	v = GetVehicle(p1);

   478

   479

	if (v->type != VEH_Aircraft || !CheckOwnership(v->owner)) return CMD_ERROR;

   480

	if (!CheckStoppedInHangar(v)) return_cmd_error(STR_A01B_AIRCRAFT_MUST_BE_STOPPED);

   481

   482

	avi = AircraftVehInfo(v->engine_type);

   483

   484

	/* Check cargo */

   485

	if (new_cid > NUM_CARGO || !CanRefitTo(v->engine_type, new_cid)) return CMD_ERROR;

   486

   487

	SET_EXPENSES_TYPE(EXPENSES_AIRCRAFT_RUN);

   488

   489

	switch (new_cid) {

   490

		case CT_PASSENGERS:

   491

			pass = avi->passenger_capacity;

   492

			break;

   493

		case CT_MAIL:

   494

			pass = avi->passenger_capacity + avi->mail_capacity;

   495

			break;

   496

		case CT_GOODS:

   497

			pass = avi->passenger_capacity + avi->mail_capacity;

   498

			pass /= 2;