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/* $Id$ */

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     3

/** @file ship_cmd.cpp */

     4

     5

#include "stdafx.h"

     6

#include "openttd.h"

     7

#include "ship.h"

     8

#include "table/strings.h"

     9

#include "functions.h"

    10

#include "landscape.h"

    11

#include "map.h"

    12

#include "tile.h"

    13

#include "vehicle.h"

    14

#include "command.h"

    15

#include "pathfind.h"

    16

#include "station_map.h"

    17

#include "station.h"

    18

#include "news.h"

    19

#include "engine.h"

    20

#include "player.h"

    21

#include "sound.h"

    22

#include "npf.h"

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#include "depot.h"

    24

#include "vehicle_gui.h"

    25

#include "newgrf_engine.h"

    26

#include "water_map.h"

    27

#include "yapf/yapf.h"

    28

#include "debug.h"

    29

#include "newgrf_callbacks.h"

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#include "newgrf_text.h"

    31

#include "newgrf_sound.h"

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#include "date.h"

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#include "spritecache.h"

    34

    35

static const uint16 _ship_sprites[] = {0x0E5D, 0x0E55, 0x0E65, 0x0E6D};

    36

    37

static const TrackBits _ship_sometracks[4] = {

    38

	TRACK_BIT_X | TRACK_BIT_LOWER | TRACK_BIT_LEFT,  // 0x19, // DIAGDIR_NE

    39

	TRACK_BIT_Y | TRACK_BIT_UPPER | TRACK_BIT_LEFT,  // 0x16, // DIAGDIR_SE

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	TRACK_BIT_X | TRACK_BIT_UPPER | TRACK_BIT_RIGHT, // 0x25, // DIAGDIR_SW

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	TRACK_BIT_Y | TRACK_BIT_LOWER | TRACK_BIT_RIGHT, // 0x2A, // DIAGDIR_NW

    42

};

    43

    44

static TrackBits GetTileShipTrackStatus(TileIndex tile)

    45

{

    47

	return TrackdirBitsToTrackBits((TrackdirBits)(TRACKDIR_BIT_MASK & (r | r >> 8)));

    48

}

    49

    50

void DrawShipEngine(int x, int y, EngineID engine, SpriteID pal)

    51

{

    52

	int spritenum = ShipVehInfo(engine)->image_index;

    53

    54

	if (is_custom_sprite(spritenum)) {

    55

		int sprite = GetCustomVehicleIcon(engine, DIR_W);

    56

    57

		if (sprite != 0) {

    58

			DrawSprite(sprite, pal, x, y);

    59

			return;

    60

		}

    61

		spritenum = orig_ship_vehicle_info[engine - SHIP_ENGINES_INDEX].image_index;

    62

	}

    63

	DrawSprite(6 + _ship_sprites[spritenum], pal, x, y);

    64

}

    65

    66

/** Get the size of the sprite of a ship sprite heading west (used for lists)

    67

 * @param engine The engine to get the sprite from

    68

 * @param width The width of the sprite

    69

 * @param height The height of the sprite

    70

 */

    71

void GetShipSpriteSize(EngineID engine, uint &width, uint &height)

    72

{

    73

	SpriteID spritenum = ShipVehInfo(engine)->image_index;

    74

	SpriteID custom_sprite = 0;

    75

    76

	if (is_custom_sprite(spritenum)) {

    77

		custom_sprite = GetCustomVehicleIcon(engine, DIR_W);

    78

		spritenum = orig_ship_vehicle_info[engine - SHIP_ENGINES_INDEX].image_index;

    79

	}

    80

	if (custom_sprite == 0) {

    81

		spritenum = 6 + _ship_sprites[spritenum];

    82

	} else {

    83

		spritenum = custom_sprite;

    84

	}

    85

    86

	const Sprite *spr = GetSprite(spritenum);

    87

    88

	width  = spr->width;

    89

	height = spr->height;

    90

}

    91

    92

int GetShipImage(const Vehicle* v, Direction direction)

    93

{

    94

	int spritenum = v->spritenum;

    95

    96

	if (is_custom_sprite(spritenum)) {

    97

		int sprite = GetCustomVehicleSprite(v, direction);

    98

    99

		if (sprite != 0) return sprite;

   100

		spritenum = orig_ship_vehicle_info[v->engine_type - SHIP_ENGINES_INDEX].image_index;

   101

	}

   102

	return _ship_sprites[spritenum] + direction;

   103

}

   104

   105

static const Depot* FindClosestShipDepot(const Vehicle* v)

   106

{

   107

	const Depot* depot;

   108

	const Depot* best_depot = NULL;

   109

	uint dist;

   110

	uint best_dist = (uint)-1;

   111

	TileIndex tile;

   112

	TileIndex tile2 = v->tile;

   113

   114

	if (_patches.new_pathfinding_all) {

   115

		NPFFoundTargetData ftd;

   116

		Trackdir trackdir = GetVehicleTrackdir(v);

   118

		if (ftd.best_bird_dist == 0) {

   119

			best_depot = GetDepotByTile(ftd.node.tile); /* Found target */

   120

		} else {

   121

			best_depot = NULL; /* Did not find target */

   122

		}

   123

	} else {

   124

		FOR_ALL_DEPOTS(depot) {

   125

			tile = depot->xy;

   126

			if (IsTileDepotType(tile, TRANSPORT_WATER) && IsTileOwner(tile, v->owner)) {

   127

				dist = DistanceManhattan(tile, tile2);

   128

				if (dist < best_dist) {

   129

					best_dist = dist;

   130

					best_depot = depot;

   131

				}

   132

			}

   133

		}

   134

	}

   135

	return best_depot;

   136

}

   137

   138

static void CheckIfShipNeedsService(Vehicle *v)

   139

{

   140

	const Depot* depot;

   141

   142

	if (_patches.servint_ships == 0) return;

   143

	if (!VehicleNeedsService(v))     return;

   144

	if (v->vehstatus & VS_STOPPED)   return;

   145

   146

	if (v->current_order.type == OT_GOTO_DEPOT &&

   147

			v->current_order.flags & OF_HALT_IN_DEPOT)

   148

		return;

   149

   150

	if (_patches.gotodepot && VehicleHasDepotOrders(v)) return;

   151

   152

	if (IsShipInDepot(v)) {

   153

		VehicleServiceInDepot(v);

   154

		return;

   155

	}

   156

   157

	depot = FindClosestShipDepot(v);

   158

   159

	if (depot == NULL || DistanceManhattan(v->tile, depot->xy) > 12) {

   160

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

   161

			v->current_order.type = OT_DUMMY;

   162

			v->current_order.flags = 0;

   163

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

   164

		}

   165

		return;

   166

	}

   167

   168

	if (v->current_order.type == OT_LOADING) v->LeaveStation();

   169

	v->current_order.type = OT_GOTO_DEPOT;

   170

	v->current_order.flags = OF_NON_STOP;

   171

	v->current_order.dest = depot->index;

   172

	v->dest_tile = depot->xy;

   173

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

   174

}

   175

   176

void OnNewDay_Ship(Vehicle *v)

   177

{

   178

	int32 cost;

   179

   180

	if ((++v->day_counter & 7) == 0)

   181

		DecreaseVehicleValue(v);

   182

   183

	CheckVehicleBreakdown(v);

   184

	AgeVehicle(v);

   185

	CheckIfShipNeedsService(v);

   186

   187

	CheckOrders(v);

   188

   189

	if (v->vehstatus & VS_STOPPED) return;

   190

   191

	cost = GetVehicleProperty(v, 0x0F, ShipVehInfo(v->engine_type)->running_cost) * _eco->GetPrice(CEconomy::SHIP_RUNNING) / 364;

   192

	v->profit_this_year -= cost >> 8;

   193

   194

	SET_EXPENSES_TYPE(EXPENSES_SHIP_RUN);

   195

	SubtractMoneyFromPlayerFract(v->owner, cost);

   196

   197

	InvalidateWindow(WC_VEHICLE_DETAILS, v->index);

   198

	/* we need this for the profit */

   199

	InvalidateWindowClasses(WC_SHIPS_LIST);

   200

}

   201

   202

static void HandleBrokenShip(Vehicle *v)

   203

{

   204

	if (v->breakdown_ctr != 1) {

   205

		v->breakdown_ctr = 1;

   206

		v->cur_speed = 0;

   207

   208

		if (v->breakdowns_since_last_service != 255)

   209

			v->breakdowns_since_last_service++;

   210

   211

		InvalidateWindow(WC_VEHICLE_VIEW, v->index);

   212

		InvalidateWindow(WC_VEHICLE_DETAILS, v->index);

   213

   214

		if (!PlayVehicleSound(v, VSE_BREAKDOWN)) {

   215

			SndPlayVehicleFx((_opt.landscape != LT_TOYLAND) ?

   216

				SND_10_TRAIN_BREAKDOWN : SND_3A_COMEDY_BREAKDOWN_2, v);

   217

		}

   218

   219

		if (!(v->vehstatus & VS_HIDDEN)) {

   220

			Vehicle *u = CreateEffectVehicleRel(v, 4, 4, 5, EV_BREAKDOWN_SMOKE);

   221

			if (u != NULL) u->u.special.unk0 = v->breakdown_delay * 2;

   222

		}

   223

	}

   224

   225

	if (!(v->tick_counter & 1)) {

   226

		if (!--v->breakdown_delay) {

   227

			v->breakdown_ctr = 0;

   228

			InvalidateWindow(WC_VEHICLE_VIEW, v->index);

   229

		}

   230

	}

   231

}

   232

   233

void Ship::MarkDirty()

   234

{

   235

	this->cur_image = GetShipImage(this, this->direction);

   236

	MarkAllViewportsDirty(this->left_coord, this->top_coord, this->right_coord + 1, this->bottom_coord + 1);

   237

}

   238

   239

static void PlayShipSound(const Vehicle *v)

   240

{

   241

	if (!PlayVehicleSound(v, VSE_START)) {

   242

		SndPlayVehicleFx(ShipVehInfo(v->engine_type)->sfx, v);

   243

	}

   244

}

   245

   246

void Ship::PlayLeaveStationSound() const

   247

{

   248

	PlayShipSound(this);

   249

}

   250

   251

static void ProcessShipOrder(Vehicle *v)

   252

{

   253

	const Order *order;

   254

   255

	switch (v->current_order.type) {

   256

		case OT_GOTO_DEPOT:

   257

			if (!(v->current_order.flags & OF_PART_OF_ORDERS)) return;

   258

			if (v->current_order.flags & OF_SERVICE_IF_NEEDED &&

   259

					!VehicleNeedsService(v)) {

   260

				v->cur_order_index++;

   261

			}

   262

			break;

   263

   264

		case OT_LOADING:

   265

		case OT_LEAVESTATION:

   266

			return;

   267

   268

		default: break;

   269

	}

   270

   271

	if (v->cur_order_index >= v->num_orders) v->cur_order_index = 0;

   272

   273

	order = GetVehicleOrder(v, v->cur_order_index);

   274

   275

	if (order == NULL) {

   276

		v->current_order.Free();

   277

		v->dest_tile = 0;

   278

		return;

   279

	}

   280

   281

	if (order->type  == v->current_order.type &&

   282

			order->flags == v->current_order.flags &&

   283

			order->dest  == v->current_order.dest)

   284

		return;

   285

   286

	v->current_order = *order;

   287

   288

	if (order->type == OT_GOTO_STATION) {

   289

		const Station *st;

   290

   291

		if (order->dest == v->last_station_visited)

   292

			v->last_station_visited = INVALID_STATION;

   293

   294

		st = GetStation(order->dest);

   295

		if (st->dock_tile != 0) {

   296

			v->dest_tile = TILE_ADD(st->dock_tile, ToTileIndexDiff(GetDockOffset(st->dock_tile)));

   297

		}

   298

	} else if (order->type == OT_GOTO_DEPOT) {

   299

		v->dest_tile = GetDepot(order->dest)->xy;

   300

	} else {

   301

		v->dest_tile = 0;

   302

	}

   303

   304

	InvalidateVehicleOrder(v);

   305

   306

	InvalidateWindowClasses(WC_SHIPS_LIST);

   307

}

   308

   309

void Ship::UpdateDeltaXY(Direction direction)

   310

{

   311

#define MKIT(a, b, c, d) ((a & 0xFF) << 24) | ((b & 0xFF) << 16) | ((c & 0xFF) << 8) | ((d & 0xFF) << 0)

   312

	static const uint32 _delta_xy_table[8] = {

   313

		MKIT( 6,  6,  -3,  -3),

   314

		MKIT( 6, 32,  -3, -16),

   315

		MKIT( 6,  6,  -3,  -3),

   316

		MKIT(32,  6, -16,  -3),

   317

		MKIT( 6,  6,  -3,  -3),

   318

		MKIT( 6, 32,  -3, -16),

   319

		MKIT( 6,  6,  -3,  -3),

   320

		MKIT(32,  6, -16,  -3),

   321

	};

   322

#undef MKIT

   323

   324

	uint32 x = _delta_xy_table[direction];

   325

	this->x_offs        = GB(x,  0, 8);

   326

	this->y_offs        = GB(x,  8, 8);

   327

	this->sprite_width  = GB(x, 16, 8);

   328

	this->sprite_height = GB(x, 24, 8);

   329

	this->z_height      = 6;

   330

}

   331

   332

void RecalcShipStuff(Vehicle *v)

   333

{

   334

	v->UpdateDeltaXY(v->direction);

   335

	v->cur_image = GetShipImage(v, v->direction);

   336

	v->MarkDirty();

   337

	InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);

   338

}

   339

   340

static const TileIndexDiffC _ship_leave_depot_offs[] = {

   341

	{-1,  0},

   342

	{ 0, -1}

   343

};

   344

   345

static void CheckShipLeaveDepot(Vehicle *v)

   346

{

   347

	TileIndex tile;

   348

	Axis axis;

   349

	uint m;

   350

   351

	if (!IsShipInDepot(v)) return;

   352

   353

	tile = v->tile;

   354

	axis = GetShipDepotAxis(tile);

   355

   356

	/* Check first side */

   357

	if (_ship_sometracks[axis] & GetTileShipTrackStatus(TILE_ADD(tile, ToTileIndexDiff(_ship_leave_depot_offs[axis])))) {

   358

		m = (axis == AXIS_X) ? 0x101 : 0x207;

   359

	/* Check second side */

   360

	} else if (_ship_sometracks[axis + 2] & GetTileShipTrackStatus(TILE_ADD(tile, -2 * ToTileIndexDiff(_ship_leave_depot_offs[axis])))) {

   361

		m = (axis == AXIS_X) ? 0x105 : 0x203;

   362

	} else {

   363

		return;

   364

	}

   365

	v->direction    = (Direction)GB(m, 0, 8);

   366

	v->u.ship.state = (TrackBits)GB(m, 8, 8);

   367

	v->vehstatus &= ~VS_HIDDEN;

   368

   369

	v->cur_speed = 0;

   370

	RecalcShipStuff(v);

   371

   372

	PlayShipSound(v);

   373

	VehicleServiceInDepot(v);

   374

	InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);

   375

	InvalidateWindowClasses(WC_SHIPS_LIST);

   376

}

   377

   378

static bool ShipAccelerate(Vehicle *v)

   379

{

   380

	uint spd;

   381

	byte t;

   382

   383

	spd = min(v->cur_speed + 1, GetVehicleProperty(v, 0x0B, v->max_speed));

   384

   385

	/*updates statusbar only if speed have changed to save CPU time */

   386

	if (spd != v->cur_speed) {

   387

		v->cur_speed = spd;

   388

		if (_patches.vehicle_speed)

   389

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

   390

	}

   391

   392

	/* Decrease somewhat when turning */

   393

	if (!(v->direction & 1)) spd = spd * 3 / 4;

   394

   395

	if (spd == 0) return false;

   396

	if ((byte)++spd == 0) return true;

   397

   398

	v->progress = (t = v->progress) - (byte)spd;

   399

   400

	return (t < v->progress);

   401

}

   402

   403

static int32 EstimateShipCost(EngineID engine_type)

   404

{

   405

	return GetEngineProperty(engine_type, 0x0A, ShipVehInfo(engine_type)->base_cost) * (_eco->GetPrice(CEconomy::SHIP_BASE) >> 3) >> 5;

   406

}

   407

   408

static void ShipArrivesAt(const Vehicle* v, Station* st)

   409

{

   410

	/* Check if station was ever visited before */

   411

	if (!(st->had_vehicle_of_type & HVOT_SHIP)) {

   412

		uint32 flags;

   413

   414

		st->had_vehicle_of_type |= HVOT_SHIP;

   415

   416

		SetDParam(0, st->index);

   417

		flags = (v->owner == _local_player) ? NEWS_FLAGS(NM_THIN, NF_VIEWPORT|NF_VEHICLE, NT_ARRIVAL_PLAYER, 0) : NEWS_FLAGS(NM_THIN, NF_VIEWPORT|NF_VEHICLE, NT_ARRIVAL_OTHER, 0);

   418

		AddNewsItem(

   419

			STR_9833_CITIZENS_CELEBRATE_FIRST,

   420

			flags,

   421

			v->index,

   422

			0);

   423

	}

   424

}

   425

   426

struct PathFindShip {

   427

	TileIndex skiptile;

   428

	TileIndex dest_coords;

   429

	uint best_bird_dist;

   430

	uint best_length;

   431

};

   432

   433

static bool ShipTrackFollower(TileIndex tile, PathFindShip *pfs, int track, uint length, byte *state)

   434

{

   435

	/* Found dest? */

   436

	if (tile == pfs->dest_coords) {

   437

		pfs->best_bird_dist = 0;

   438

   439

		pfs->best_length = minu(pfs->best_length, length);

   440

		return true;

   441

	}

   442

   443

	/* Skip this tile in the calculation */

   444

	if (tile != pfs->skiptile) {

   445

		pfs->best_bird_dist = minu(pfs->best_bird_dist, DistanceMaxPlusManhattan(pfs->dest_coords, tile));

   446

	}

   447

   448

	return false;

   449

}

   450

   451

static const byte _ship_search_directions[6][4] = {

   452

	{ 0, 9, 2, 9 },

   453

	{ 9, 1, 9, 3 },

   454

	{ 9, 0, 3, 9 },

   455

	{ 1, 9, 9, 2 },

   456

	{ 3, 2, 9, 9 },

   457

	{ 9, 9, 1, 0 },

   458

};

   459

   460

static const byte _pick_shiptrack_table[6] = {1, 3, 2, 2, 0, 0};

   461

   462

static uint FindShipTrack(Vehicle *v, TileIndex tile, DiagDirection dir, TrackBits bits, TileIndex skiptile, Track *track)

   463

{

   464

	PathFindShip pfs;

   465

	Track i, best_track;

   466

	uint best_bird_dist = 0;

   467

	uint best_length    = 0;

   468

	uint r;

   469

	byte ship_dir = v->direction & 3;

   470

   471

	pfs.dest_coords = v->dest_tile;

   472

	pfs.skiptile = skiptile;

   473

   474

	best_track = INVALID_TRACK;

   475

   476

	do {

   477

		i = RemoveFirstTrack(&bits);

   478

   479

		pfs.best_bird_dist = (uint)-1;

   480

		pfs.best_length = (uint)-1;

   481

   483

   484

		if (best_track != INVALID_TRACK) {

   485

			if (pfs.best_bird_dist != 0) {

   486

				/* neither reached the destination, pick the one with the smallest bird dist */

   487

				if (pfs.best_bird_dist > best_bird_dist) goto bad;

   488

				if (pfs.best_bird_dist < best_bird_dist) goto good;

   489

			} else {

   490

				if (pfs.best_length > best_length) goto bad;

   491

				if (pfs.best_length < best_length) goto good;

   492

			}

   493

   494

			/* if we reach this position, there's two paths of equal value so far.

   495

			 * pick one randomly. */

   496